Treating Spent Or Used Fluid Above Ground Patents (Class 175/66)
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Publication number: 20130048385Abstract: A method for finding dust generated when air drilling and mixing this dust with liquid. The apparatus comprises a mixing chamber in fluid communication with a liquid tank. A plurality of inlet ports extend into the mixing chamber from the fluid tank. As dust passes through the mixing chamber dust binds with the liquid from the fluid tank.Type: ApplicationFiled: August 30, 2011Publication date: February 28, 2013Inventor: Arthur Donnell
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Patent number: 8371037Abstract: A system for slurrifying drill cuttings including a cuttings dryer, a pump, and a transfer line fluidly connecting the cuttings dryer and the pump, the transfer line having a fluid inlet for receiving a fluid. Furthermore, the system for slurrifying drill cuttings including a storage vessel fluidly connected to the pump for storing a slurry. Additionally, a method for slurrifying drill cuttings including drying drill cuttings in a cuttings drying to produce dry cuttings and combining a fluid with the dry cuttings to produce a slurry. Furthermore, the method includes mixing the slurry and the dry cuttings in a mixing pump and transferring the slurry to a storage vessel.Type: GrantFiled: March 14, 2012Date of Patent: February 12, 2013Assignee: M-I L.L.C.Inventor: Jan Thore Eia
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Patent number: 8356678Abstract: A method and apparatus for recovering oil from oil-containing sorbents, such as drill cuttings obtained from drilling with an oil-based mud. The method includes peptizing the substrate with an acid reagent and direct thermal desorption with combustion effluent gases at high temperature under turbulent mixing conditions. Another method disclosed includes upgrading the oil in the substrate to improve one or more of the properties of the recovered oil relative to the oil in the substrate, such as, lower aromatics content, lower sulfur content, lower functional group content, higher saturates, higher viscosity, higher viscosity index, and any combination thereof. The apparatus provides for efficient recovery of oil from the substrate with a short residence time, high throughput, low residual oil content in the treated solids and/or high percentage of oil recovery. The apparatus may be transported to a remote location for on-site treatment of drill cuttings or other oil-containing solids.Type: GrantFiled: July 11, 2011Date of Patent: January 22, 2013Assignee: Racional Energy & Environment CompanyInventor: Ramon Perez-Cordova
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Patent number: 8336231Abstract: A mobile digging and backfill system for removing and collecting material above a buried utility. The system comprises a mobile chassis, a collection tank mounted to the chassis, a water pump mounted to the chassis for delivering a pressurized liquid flow against the material for loosening the material at a location, a vacuum pump connected to the collection tank so that an air stream created by the vacuum pump draws the material and the fluid from the location into the collection tank, and at least one backfill reservoir mounted to the chassis for carrying backfill for placement at the location.Type: GrantFiled: July 1, 2011Date of Patent: December 25, 2012Assignee: McLaughlin Group, Inc.Inventors: Charles Robert Maybury, Jr., John William Gilman
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Patent number: 8322464Abstract: A system for continuously feeding drill cuttings extracted from a cutting source into a liquid. The system has an open bottomed vacuum hood, means for positioning the open bottom of the vacuum hood in a liquid, means for creating a vacuum in the vacuum hood, a conduit for transporting the drill cuttings from the cutting source to the open bottomed vacuum hood, from which vacuum hood the drill cuttings fall, under the influence of gravity, through the open bottom of the vacuum hood and are thereby deposited into said liquid. Embodiments include means for removing and recovering residual drilling fluids extracted with the drill cuttings, reducing the size of the drill cuttings so they may be injected into a porous earth formation, relieving choke points and blockages.Type: GrantFiled: February 4, 2010Date of Patent: December 4, 2012Inventor: Jeffrey A. Reddoch, Sr.
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Patent number: 8316557Abstract: A screen assembly for a shale shaker comprising a panel (500) and a support structure (600), the panel (500) having an area provided with a multiplicity of apertures and at least one layer of screening material arranged over the multiplicity of apertures, wherein said panel (500) is removable from said support structure (600).Type: GrantFiled: May 21, 2009Date of Patent: November 27, 2012Assignee: Varco I/P, Inc.Inventor: George Alexander Burnett
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Patent number: 8282838Abstract: A method and apparatus is provided for removing fluids, particularly entrained and/or adherent fluids, from drill cuttings created during the well drilling process. An apron assembly collects drill cuttings and deposits such cuttings on a central rotor having multiple distinct chambers. A first chamber is loaded with drill cuttings. The central rotor thereafter cycles to a second position wherein a pressure seal is formed around the loaded first chamber. An air knife or similar device is used to blast compressed gas at the cuttings in the sealed chamber and force the cuttings against a screen. Solid components of the cuttings remain in the sealed chamber, while liquid components pass through the screen and are collected using an auger assembly. Following such separation, the rotor is cycled again, allowing dried cuttings to empty from the first chamber. The process is repeated for each chamber of the rotor.Type: GrantFiled: February 24, 2012Date of Patent: October 9, 2012Inventor: Michael David Billeaud
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Patent number: 8276686Abstract: A vacuum assisted drill cuttings dryer and handling apparatus has a vacuum tank and an associated vacuum pump and motor configured for use with a high speed centrifugal dryer. Cuttings are drawn from the shaker of a drilling rig into the centrifugal dryer by means of a vacuum created in the centrifugal dryer by the vacuum tank and an associated vacuum pump and motor. The dryer is provided with sealable exit doors that may be opened and closed in sequence to allow removal of the cuttings even as cuttings are drawn in to the centrifugal dryer. A fluids collection chamber in communication with vacuum lines between the vacuum tank and centrifugal dryer collects fluids drawn from the centrifugal dryer.Type: GrantFiled: March 16, 2011Date of Patent: October 2, 2012Inventor: Michael H James
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Patent number: 8267200Abstract: A method for treating drill cuttings including depositing drill cuttings in a desalinization cell, the desalinization cell having a high end, a low end, and a cuttings pad. The method further includes washing the drill cuttings in the desalinization cell with a liquid phase and removing a cuttings runoff from the drill cuttings. Also, a method for treating drill cuttings including depositing drill cuttings in a desalinator, the desalinator having a geometric structure having a perforated side. The method further includes adding a liquid phase to the desalinator through the perforated side, washing the drill cuttings in the desalinator with the liquid phase, and producing desalinated drill cuttings and a cuttings runoff.Type: GrantFiled: December 28, 2011Date of Patent: September 18, 2012Assignee: M-I L.L.C.Inventors: Gary E. Fout, John Candler, Kayli Clements, Will Marchbanks
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Patent number: 8267201Abstract: A method and apparatus for disposing of drill cuttings 500 from an oil and/or gas well drilling platform 510, comprising providing a barge 10, the barge 10 having at least one storage area 30, a cover 100 operably connected to the at least one storage area placing the cover 100 in a first open state so that cuttings 500 can be placed in the at least one storage area 30; transporting the drill cuttings placing the cover 100 in a closed state so that the cuttings 520 in the storage area 30 of the barge 10 are contained; transporting the barge 10 from the drilling platform 510 to a collection site 540; placing the cover 100 in a second open state so that the cuttings 520 in the storage area 30 can be removed; and removing the cuttings 520 from the storage area 30.Type: GrantFiled: January 17, 2012Date of Patent: September 18, 2012Assignee: Coastal Boat Rentals, Inc.Inventors: Michael Patterson, Edward L. Shearer
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Publication number: 20120193146Abstract: A vacuum assisted drill cuttings dryer and handling apparatus has a vacuum tank and an associated vacuum pump and motor configured for use with a high speed centrifugal dryer. Cuttings are drawn from the shaker of a drilling rig into the centrifugal dryer by means of a vacuum created in the centrifugal dryer by the vacuum tank and an associated vacuum pump and motor. The dryer is provided with sealable exit doors that may be opened and closed in sequence to allow removal of the cuttings even as cuttings are drawn in to the centrifugal dryer. A fluids collection chamber in communication with vacuum lines between the vacuum tank and centrifugal dryer collects fluids drawn from the centrifugal dryer.Type: ApplicationFiled: March 16, 2011Publication date: August 2, 2012Inventor: Michael H. James
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Publication number: 20120186881Abstract: A system for recovering drilling mud in drilling an underground arcuate path around at least a portion of an obstacle has a conductor casing, a drill pipe surrounded by the conductor casing for at least a portion of an axial length of the drill pipe, a flow line connected to the conductor casing at a downhole position, and a pump coupled to the flow line placed at another downhole position. A volume of drilling mud within the underground arcuate path is pumped from the underground arcuate path to the surface and recovered for recirculation.Type: ApplicationFiled: July 28, 2011Publication date: July 26, 2012Inventors: Ronald G. Halderman, Karl D. Quackenbush
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Patent number: 8227382Abstract: A method of cleaning a wellbore drilled with a drilling fluid that forms a filter cake that includes emplacing a breaker fluid into the wellbore, the breaker fluid comprising: an aqueous fluid; a fragmentation agent; and an amphoteric chemotrope; and shutting in the well for a period of time sufficient to initiate breaking of the filter cake is disclosed.Type: GrantFiled: November 24, 2008Date of Patent: July 24, 2012Assignee: M-I L.L.C.Inventors: Eugene Dakin, Andrey Reznichenko, Hui Zhang
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Publication number: 20120181086Abstract: Systems and techniques, including a circle feeder, for the handling of drill cuttings, providing surge storage, rig buffer storage and wet and dry cuttings blending, including temporary storage of drill cuttings, optimizing storage capacity and the efficient and regulated movement of stored cuttings to a discharge port out of the hopper. Systems and techniques, maximize available space, provide optimized surge storage to optimize the use of downstream DPCS (and other transportation devices), provide optimized rig based storage and discharge, minimize or eliminate the occurrence of ratholing, bridging, degradation, segregation, and dehydration within the hopper, control and regulate the flow of cuttings from the hopper to the discharge port from the hopper, and provide metered discharge from the hopper storage, particularly when one hopper is discharging wet cuttings and a second hopper is discharging dry cuttings, and it is desirable to blend the wet and dry cuttings after such metered discharge.Type: ApplicationFiled: September 25, 2010Publication date: July 19, 2012Inventors: Craig William Addison, Kenneth Richard Carlson, Joseph Daniel Farrar, Perry Lyman
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Publication number: 20120181085Abstract: One method for treating cuttings from a subsurface formation may include treating the cuttings with at least one surfactant and at least one stabilizing agent. The method may include contacting the cuttings with the stabilizing agent(s) before contacting the cuttings with the surfactant(s). Another method for treating drill cuttings includes returning the drill cuttings to a substantially water-wet condition by using at least one stabilizing agent to remove at least a portion of a hydrocarbon from the drill cuttings.Type: ApplicationFiled: January 9, 2012Publication date: July 19, 2012Applicant: BAKER HUGHES INCORPORATEDInventors: Lirio Quintero, Anuradee Witthayapanyanon, Jonathan J. Brege, David E. Clark
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Patent number: 8215028Abstract: A system for slurrifying drill cuttings including a cuttings dryer, a pump, and a transfer line fluidly connecting the cuttings dryer and the pump, the transfer line having a fluid inlet for receiving a fluid. Furthermore, the system for slurrifying drill cuttings including a storage vessel fluidly connected to the pump for storing a slurry. Additionally, a method for slurrifying drill cuttings including drying drill cuttings in a cuttings drying to produce dry cuttings and combining a fluid with the dry cuttings to produce a slurry. Furthermore, the method includes mixing the slurry and the dry cuttings in a mixing pump and transferring the slurry to a storage vessel.Type: GrantFiled: May 15, 2008Date of Patent: July 10, 2012Assignee: M-I L.L.C.Inventor: Jan Thore Eia
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Publication number: 20120160566Abstract: A system for recycling a drilling fluid that includes a first cuttings storage vessel, a second cuttings storage vessel, and a module fluidly connected to the first and second cuttings storage vessels, the module having a valve configured to fluidly connect the first and second cuttings storage vessels. The module further includes a filter system configured to fluidly connect to at least the second cuttings storage vessel, and at least one pump to facilitate the flow of a fluid between the first and second cuttings storage vessels.Type: ApplicationFiled: December 22, 2011Publication date: June 28, 2012Applicant: M-I L.L.C.Inventor: Jan Thore Eia
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Patent number: 8202415Abstract: Methods and systems are disclosed for treating a drilling fluid mixture including feeding the drilling fluid mixture to a hydrocyclone (or hydrocyclones) with a flow-volume-adjustable inlet for controlling flow of the drilling fluid mixture into the hydrocyclone(s). This abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 C.F.R. 1.72(b).Type: GrantFiled: April 14, 2009Date of Patent: June 19, 2012Assignee: National Oilwell Varco, L.P.Inventor: Thomas Robert Larson
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Publication number: 20120090899Abstract: A method for treating drill cuttings including depositing drill cuttings in a desalinization cell, the desalinization cell having a high end, a low end, and a cuttings pad. The method further includes washing the drill cuttings in the desalinization cell with a liquid phase and removing a cuttings runoff from the drill cuttings. Also, a method for treating drill cuttings including depositing drill cuttings in a desalinator, the desalinator having a geometric structure having a perforated side. The method further includes adding a liquid phase to the desalinator through the perforated side, washing the drill cuttings in the desalinator with the liquid phase, and producing desalinated drill cuttings and a cuttings runoff.Type: ApplicationFiled: December 28, 2011Publication date: April 19, 2012Applicant: M-I L.L.C.Inventors: Gary E. Fout, John Candler, Kayli A. Clements, William Marchbanks
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Publication number: 20120090898Abstract: This application relates to an apparatus and method for cleaning drill cuttings recovered from a wellbore. Specifically, the apparatus includes an effective system for handling and washing drill cuttings at a well site to remove hydrocarbon contaminants. The system successively washes hydrocarbon contaminated drill cuttings in organic solvent and water to remove and recover the hydrocarbon contaminates, and produce cleaned drill cuttings that may enable disposal of clean drill cuttings without further treatment.Type: ApplicationFiled: October 14, 2011Publication date: April 19, 2012Inventors: Stanley Ross, Michael Biersteker
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Publication number: 20120080195Abstract: The present invention relates to a drilling composition comprising: I) an organic phase comprising components: i. from about 20 wt. % to about 99.999 wt. %, based on the total weight of components i. and ii., of at least one linear or branched, cyclic or non-cyclic, saturated hydrocarbon; ii. from about 0.001 wt. % to about 25 wt. %, based on the total weight of components i. and ii., of at least one ester; II) from 0 to about 50 wt. %, based on the total weight of the composition, of water or aqueous phase; III) from 0 to about 60 wt. %, based on the total weight of the composition, of at least one additive, wherein the sum of the weight components I) to III) is 100 wt. %, to a process for preparation of a drilling composition, to uses of a drilling composition, to a drilling system, to a process for making a borehole, to a process for conveying cuttings, to a process for treating a drill head, to a process for production of at least one of oil and gas.Type: ApplicationFiled: March 15, 2010Publication date: April 5, 2012Applicant: COGNIS OLEOCHEMICALS GMBHInventors: Michael Fefer, Jun Liu, Heinz Mueller, Nadja Herzog, Diana Maeker
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Patent number: 8132632Abstract: This invention relates to a system and process for recovering and recycling valuable target recycle materials such lost circulation material and weighting agents from drilling fluid used in hydrocarbon drilling operations. The system and process includes use of a binary fluid that is separate from the drilling fluid and has a designed density that allows separation of the valuable target recycle materials from drill cuttings. The solids are separated from the drilling fluid in a primary separation step and then mixed with the binary fluid in a density separation or enhanced mass separation device. The binary fluid density allows the separation device to distinguish the target recycle material from drilling solids and recycles the target material to the drilling operations for re-use in drilling fluid. The binary fluid is recovered and refreshed to maintain a generally continuous process of targeted recycling.Type: GrantFiled: April 17, 2009Date of Patent: March 13, 2012Assignee: ConocoPhillips CompanyInventor: Paul D. Scott
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Patent number: 8123046Abstract: A method and apparatus is provided for removing fluids, particularly entrained and/or adherent fluids, from drill cuttings created during the well drilling process. An apron assembly collects drill cuttings and deposits such cuttings on a central rotor having multiple distinct chambers. A first chamber is loaded with drill cuttings. The central rotor thereafter cycles to a second position wherein a pressure seal is formed around the loaded first chamber. An air knife or similar device is used to blast compressed gas at the cuttings in the sealed chamber and force the cuttings against a screen. Solid components of the cuttings remain in the sealed chamber, while liquid components pass through the screen and are collected using an auger assembly. Following such separation, the rotor is cycled again, allowing dried cuttings to empty from the first chamber. The process is repeated for each chamber of the rotor.Type: GrantFiled: October 23, 2009Date of Patent: February 28, 2012Inventor: Michael David Billeaud
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Patent number: 8104623Abstract: A screen is described for use in a vibrating machine for separating solids from liquid material, comprising woven wire cloth of orthogonal warp and weft wires, tensioned and bonded to a support structure defining at least one rectangular opening across which the cloth extends. The orientation of the cloth is chosen so that the warp wires extend across the width (i.e. shorter dimension) of the opening(s). If the cloth has a square mesh and the warp wires are of greater cross section than the weft wires, the warp wires will extend across the width of the frame, and if the cloth has a rectangular mesh, the greater number of warp wires per unit length will also extend across the width of the frame, so that in each case warp wires will resist in use the stresses across the width of the central region of the or each opening.Type: GrantFiled: April 7, 2004Date of Patent: January 31, 2012Assignee: United Wire LimitedInventor: Graham Robertson
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Patent number: 8101086Abstract: A process for the separation of production fluids is provided. The production fluids comprise an oil/water emulsion stabilized with fine solids. The emulsion may further comprise asphaltenes and naphthenic acids and resins. The process includes subjecting the emulsion to a flocculating agent to flocculate solids within the emulsion, and separating water and solids from crude oil in a first separator. The process further includes subjecting the separated crude oil to a demulsifier after subjecting the emulsion to a flocculating agent, and further separating water from the crude oil in a second separator. A process for producing fluids from a hydrocarbon-bearing reservoir is also provided, using the separation processes herein.Type: GrantFiled: June 14, 2007Date of Patent: January 24, 2012Assignee: ExxonMobil Upstream Research CompanyInventors: Ramesh Varadaraj, Lee A. Littlejohn
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Patent number: 8100198Abstract: A method for treating drill cuttings including depositing drill cuttings in a desalinization cell, the desalinization cell having a high end, a low end, and a cuttings pad. The method further includes washing the drill cuttings in the desalinization cell with a liquid phase and removing a cuttings runoff from the drill cuttings. Also, a method for treating drill cuttings including depositing drill cuttings in a desalinator, the desalinator having a geometric structure having a perforated side. The method further includes adding a liquid phase to the desalinator through the perforated side, washing the drill cuttings in the desalinator with the liquid phase, and producing desalinated drill cuttings and a cuttings runoff.Type: GrantFiled: March 18, 2008Date of Patent: January 24, 2012Assignee: M-I L.L.C.Inventors: Gary E. Fout, John Candler, Kayli A. Clements, William Marchbanks
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Patent number: 8096371Abstract: A method and apparatus for disposing of drill cuttings 500 from an oil and/or gas well drilling platform 510, comprising (a) transporting the drill cuttings 520 to a cuttings collection area 530 on the platform 510; (b) providing a barge 10, the barge 10 having at least one storage area 30, a cover 100 operably connected to the at least one storage area 30, and covering the at least one storage area 30; (c) placing the cover 100 in a first open state so that cuttings 500 can be placed in the at least one storage area 30; (d) transporting the drill cuttings 500 from the cuttings collection area 530 to the at least one storage area of the barge 10; (e) placing the cover 100 in a closed state so that the cuttings 520 in the storage area 30 of the barge 10 are contained; (f) transporting the barge 10 from the drilling platform 510 to a collection site 540; (g) placing the cover 100 in a second open state so that the cuttings 520 in the storage area 30 can be removed; and (h) removing the cuttings 520 from the stoType: GrantFiled: February 14, 2011Date of Patent: January 17, 2012Assignee: Central Boat Rentals, Inc.Inventors: Michael Patterson, Edward L. Shearer
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Patent number: 8091653Abstract: In oil or gas well drilling, saline water is collected and separated into first and second streams of solid or liquid products containing salts. The first or second product is added to drilling fluids as a weighting agent.Type: GrantFiled: September 29, 2008Date of Patent: January 10, 2012Assignee: Ecycling, LLCInventor: Gerald J. Grott
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Patent number: 8074738Abstract: A system for offshore treatment of drill cuttings that includes a first pressurized vessel configured to receive contaminated drill cuttings and adapted to allow a compressed gas be introduced therein as the sole means for inducing movement of said contaminated drill cuttings in the first pressurized vessel, whereby at least a portion of the contaminated drill cuttings is discharged from the first pressurized vessel; and a reactor unit in fluid connection with the first pressurized vessel for separating the contaminated drill cuttings into drill cuttings and contaminants, wherein the reactor unit includes a processing chamber having at least one inlet and outlet; and a rotor mounted in the processing chamber, the rotor including a shaft; and a plurality of fixed rotor arms extending radially from the shaft is disclosed.Type: GrantFiled: December 6, 2007Date of Patent: December 13, 2011Assignee: M-I L.L.C.Inventors: Nick McDonald, Andrew Murray
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Patent number: 8073623Abstract: An illustrative embodiment of a method is disclosed for assessing image quality of a down hole formation image, the method comprising collecting acquisition system data from a plurality of sensors down hole; applying a set of rules to the acquisition system data to obtain an acquisition quality indicator; and presenting the acquisition quality indicator at a surface location. A system is disclosed for performing the method.Type: GrantFiled: January 4, 2008Date of Patent: December 6, 2011Assignee: Baker Hughes IncorporatedInventors: Andreas Hartmann, Oleg N. Akimov, Ansgar Baule, Christian Fulda
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Patent number: 8047305Abstract: A system for forming a subterranean wellbore may include a pump and an additive supply. The pump pumps a drilling fluid into the wellbore while also generating a pressure differential that draws an additive across a supply line connected to the additive supply. The drilling fluid may be a gas or a liquid. A method for forming a wellbore may include drilling the wellbore, circulating a drilling fluid in the wellbore using a pump; and supplying an additive to the drilling fluid by flowing the additive across a supply line using a pressure differential generated by the pump. The pump may generate a vacuum pressure at a supply line outlet and/or create a pressure differential in the supply line. The flow of additive across the supply line may be regulated and/or stopped when the pump is not operating.Type: GrantFiled: May 11, 2010Date of Patent: November 1, 2011Assignee: Baker Hughes IncorporatedInventors: William M. Dye, Nels A. Hansen, John B. Trenery, Jr.
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Patent number: 8025108Abstract: A subterranean method of processing a hydrocarbon fluid-containing deposit includes, from a subterranean room, providing a borehole into a deposit containing formation fluid comprising fluid hydrocarbon. The borehole has a first end at a wall of the subterranean room, and a second end remote from the subterranean room and received within the deposit. The first end is elevationally lower than the second end. A string of pipe is provided within the borehole from the subterranean room. A cuttings removal fluid is injected from the string of pipe into the borehole and against a wall of the borehole in underbalanced pressure conditions. One of drilling, reaming, or jetting is conducted within the borehole during said injecting of the cuttings removal fluid. Formation fluid comprising fluid hydrocarbon is flowed from the deposit into the borehole during said injecting of the cuttings removal fluid.Type: GrantFiled: September 4, 2008Date of Patent: September 27, 2011Assignee: New Era Petroleum, LLC.Inventors: Joseph McPhie, Clint Spence, Marty Fell, Greg Vandersnick, Brian Lunan, Albert Cerenzie
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Publication number: 20110220418Abstract: Methods and related systems are configured to treat a drilling fluid to cause water droplets to coalesce. One or more phases are thereafter separated from the treated drilling fluid. The oil and/or solids separated from the treated drilling fluid may be added to a base fluid.Type: ApplicationFiled: March 2, 2011Publication date: September 15, 2011Applicant: BAKER HUGHES INCORPORATEDInventors: David E. Clark, Lirio Quintero, Anuradee Witthayapanyanon, Alexander John McKellar, Martin Gilbert
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Patent number: 8002050Abstract: An onshore oil or gas well is completed with a coiled tubing unit. A completion liquid is circulated through coiled tubing and thereby removing solids from the well. The completion liquid and drilled solids pass into a tank where the solids are removed and the cleansed completion liquid is redelivered into the well. In some embodiments, drilled solids from the completion liquid are dewatered to a suitable extent in the tank and dumped into a bin where they are mixed with cotton motes to sorb any free liquid. In some embodiments, drilled solids from drilling an onshore subterranean well are mixed with cotton motes to sorb free liquid. The mixture of cotton motes and drilled solids are disposed of in a manner consistent with appropriate regulations, as by delivery to a commercial landfill, which may be either privately or municipally owned.Type: GrantFiled: May 5, 2009Date of Patent: August 23, 2011Inventor: W. Lynn Frazier
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Patent number: 8002991Abstract: Systems and methods for dewatering drilling fluid including a feeder, an aging tank, a polyductor configured between the feeder and the aging tank and a flocculant solution pump fluidly connected to the aging tank. Further, the system includes a portable skid to house the feeder, the aging tank, the polyductor, and the flocculant solution pump. In certain embodiments, the polyductor is configured to mix a liquid with a dry flocculant from the feeder, and disperse a resultant flocculant solution in the aging tank, the aging tank is configured to receive the flocculant solution, and the flocculant solution pump is configured to remove the flocculant solution from the aging tank.Type: GrantFiled: June 14, 2010Date of Patent: August 23, 2011Assignee: M-I LLCInventors: Gary E. Fout, Julio Roberto Ronderos, Catalin Ivan
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Patent number: 7992655Abstract: Controlling drilling mud density in drilling operations utilizing concentric drill tubes and at least two different density fluids. The mud required at the wellhead is combined with a base fluid of a different density to produce diluted mud in a riser. By combining the appropriate quantities of drilling mud with base fluid, greater control over the pressure in the wellbore and various risers can be achieved. Concentric drill tubes or risers are disclosed, wherein a first annulus defined within one riser is utilized to carry one fluid to the wellbore injection point, while a second annulus defined within another riser is utilized to carry a combination fluid and cuttings back to the drilling rig. In one embodiment with three concentric drill tubes, a third annulus is also define, wherein the various annuli can be utilized in various combinations to deliver at least two different fluids to the wellbore and return a combination fluid from the wellbore.Type: GrantFiled: November 21, 2005Date of Patent: August 9, 2011Assignee: Dual Gradient Systems, LLCInventor: Luc deBoer
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Patent number: 7992654Abstract: A system for controlling drilling mud density in drilling operations that combines a base fluid of lesser/greater density than the drilling fluid required at the drill bit to drill the borehole to produce a combination return mud in a riser. Concentric tubular members are disclosed, wherein one tubular member, such as the drill string, is utilized to inject the drilling fluid into the wellbore. Another tubular member carries the combination fluid to the surface for separation by a centrifuge system. By combining appropriate quantities of drilling mud with another fluid, the density of the combination fluid carrying drill cuttings to the surface can be regulated. During separation by the centrifuge, a weir plate having an adjustable height is utilized in the centrifuge to regulate the separation of the base fluid from the drilling fluid, producing a high density fluid and a low density fluid.Type: GrantFiled: August 22, 2008Date of Patent: August 9, 2011Assignee: Dual Gradient Systems, LLCInventor: Luc deBoer
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Patent number: 7980329Abstract: A method and system for drilling a wellbore is described. The system includes a wellbore with a variable density drilling mud, drilling pipe, a bottom hole assembly disposed in the wellbore and a drilling mud processing unit in fluid communication with the wellbore. The variable density drilling mud has compressible particles and drilling fluid. The bottom hole assembly is coupled to the drilling pipe, while the drilling mud processing unit is configured to separate the compressible particles from the variable density drilling mud. The compressible particles in this embodiment may include compressible hollow objects filled with pressurized gas and configured to maintain the mud weight between the fracture pressure gradient and the pore pressure gradient. In addition, the system and method may also manage the use of compressible particles having different characteristics, such as size, during the drilling operations.Type: GrantFiled: January 22, 2010Date of Patent: July 19, 2011Assignee: ExxonMobil Upstream Research CompanyInventors: Paul Matthew Spiecker, Pavlin B. Entchev, Ramesh Gupta, Richard Polizzotti, Barbara Carstensen, Dennis G. Peiffer, Norman Pokutylowicz
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Patent number: 7972518Abstract: A method for cleaning solids-laden aqueous fluids uses an apparatus comprising a settling tank having a sloping floor, which drops off into a collection area; primary and secondary mixing tanks, the lower regions of which are in fluid communication via fluid transfer means; and agitators in each of the mixing tanks. Solids-laden fluid is introduced into the primary mixing tank along with selected coagulant and/or flocculent chemicals, whereupon the agitator in the primary mixing tank is actuated to induce downward fluid flow toward the fluid transfer means and into the secondary mixing tank. The agitator in the secondary mixing tank is actuated to induce upward fluid flow in the secondary mixing tank, from which the fluid mixture overflows into the setting tank. Solids settle or precipitate into the settling tank, and then move downward along the settling tank's sloped floor and into the collection area, from which the solids can be removed for further treatment or disposal.Type: GrantFiled: June 30, 2010Date of Patent: July 5, 2011Inventors: Ambrose Ralph, Randy Wold, Roger Allard
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Patent number: 7971657Abstract: A system for handling drill cuttings conveys cuttings slurry into bulk tanks via a conduit. The bulk tanks have an un-pressurized interior volume that receives the slurry. A conveyance member positioned inside the bulk tank forces the slurry out of a discharge port at the bottom of the bulk tank. One suitable conveyance member is a screw-type conveyor coupled to a motor that applies a vertical motive force to the slurry. The bulk tanks hold the cuttings slurry until it can be discharged via the discharge port to a transport vessel for processing or disposal. For offshore operations, the system includes a separation unit on the rig that forms the cuttings slurry from fluid returning from the wellbore and a cuttings flow unit that conveys the slurry effluent from the separation unit to the bulk tanks. In one arrangement, a controller and sensors control the flow of slurry into the bulk tanks.Type: GrantFiled: December 13, 2005Date of Patent: July 5, 2011Assignee: Baker Hughes IncorporatedInventors: Glynn Hollier, Brett Boyd
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Publication number: 20110147087Abstract: A cuttings transfer system including a separator configured to separate cuttings from a slurry and a transfer line configured to receive the cuttings from the separator. The system further including a valve in fluid communication with the transfer line and the separator, wherein the valve is configured to control a flow of the cuttings from the separator to the transfer line, and an air transfer device coupled to the transfer line that is configured to supply a flow of air through the transfer line.Type: ApplicationFiled: May 14, 2009Publication date: June 23, 2011Applicant: M-I L.L.C.Inventor: Jan Thore Eia
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Patent number: 7964101Abstract: Processes for treating drilling fluid by passing the fluid through a separator including a clarifying zone and a thickening zone, the clarifying zone having inclined plates and the thickening zone having at least one wall with an angle of less than about 60°. The separator may optionally include an agglomeration zone and a removal zone.Type: GrantFiled: March 24, 2009Date of Patent: June 21, 2011Assignee: Q'Max Solutions Inc.Inventors: Kevin Slough, Troy Lupul
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Publication number: 20110114389Abstract: This invention relates to an ecologically and environmentally friendly mud-gas containment system. Specifically, this invention relates to a mobile device that is capable of receiving waste gas and, in emergency situations, a volume of a mud-gas mixture from a drilling operation. The waste gas is communicated to a removable flare stack through a vent line. The mud-gas is received at a containment vessel. The impact of the mud-gas within the containment vessel separates the mud-gas into mud and waste gas. The mud is collected for recycling and/or environmentally sensitive disposal. The waste gas from the vessel is communicated to the flare stack. Separate removal ports and conduits are used to remove any residual mud or mud-gas from the vent line and/or containment vessel. Excess mud or mud-gas is communicated to an overflow catch tank for removal. The entire assembly is mounted on a mobile skid sized for highway transportation.Type: ApplicationFiled: June 30, 2008Publication date: May 19, 2011Inventor: Harold Dean Mathena
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Publication number: 20110108282Abstract: A drilling system employing a main tubular having a plurality of fluid inlet and outlet conduits positioned thereon and a concentric inner tubular having a plurality seals for sealing the annular space between the concentric inner and main tubulars. The fluid inlet and outlet conduits work in cooperation with the annular seals to selectively open and close for effective management of pressure within the tubulars.Type: ApplicationFiled: January 6, 2011Publication date: May 12, 2011Inventors: John Kozicz, Tim Juran, Andy Legault, Sandy Black, John Mackay, Scott Niven, Iain Sneddon
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Patent number: 7935261Abstract: A method is provided of recycling and cleaning up oil-based waste drilling mud and cuttings contaminated with oil-based waste drilling mud. A facility for performing the method is also provided. The method includes removing the coarse solids from the mud, breaking the emulsion, separating the hydrophobic phase from the water phase and the solid phase, vaporizing all residual oil and water from the solids, and burning off the vaporized oil. The method produces a solid “soil” product that is free from oil contamination, an oil product that is fit for reuse, and clean air emissions. A thermal desorber can be used to efficiently vaporize the oil at low temperature. Optionally the water fraction of the mud can be vaporized, solutes and salts can be captured as evaporite and then be mixed with the soil product. The method has the unique advantage of producing no persistent hazardous waste.Type: GrantFiled: November 24, 2008Date of Patent: May 3, 2011Assignee: Arkansas Reclamation Company, LLCInventors: Thomas P. Jones, Richard T. Davis, Charles R. Richesin
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Patent number: 7926564Abstract: A portable well treating fluid mixing system includes: a supply tank having an inlet receiving pneumatically conveyed dry treating material; a cyclone separator having an inlet coupled to the supply tank and receiving dust laden air from the supply tank, and having a first outlet venting clean air and having a second outlet venting solids; a collection container having a first inlet coupled to the cyclone separator second outlet and receiving solids from the cyclone separator and having an outlet; and, a pump having an inlet coupled to the collection container outlet and a pump outlet coupled to the supply tank. In operation, the system continuously conveys dust from the collection container back into the supply tank to maintain the separator in proper operating condition and minimizes venting of dust during the transfer of material to the supply tank.Type: GrantFiled: October 13, 2009Date of Patent: April 19, 2011Assignee: Halliburton Energy Services, Inc.Inventors: Max L. Phillippi, Calvin Lynn Stegemoeller
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Patent number: 7913776Abstract: A system for treating spent/used Oil Based Drilling Muds (OBM's) to recover High Gravity Solids (HGS) for further reuse and to separate the invert emulsion from the Light Gravity Solids (LGS) with good characteristics also for further reuse. Separated LGS is processed to extract the remaining oil in order to render an environmentally safe solid fraction. The overflow of a screening or centrifugation of spent OBM enters a reactor where reagents are added and mixed to control the oil/water ratio of the recovered emulsion and to reduce the LGS concentration. A catalyst is added before adding a final reagent that initiates the reaction. Upon centrifuging the reacted mix, the recovered emulsion is the overflow and a thin layer of LGS forms slightly below the emulsion. The underflow of this separation is further sedimented by gravity and the phase dispersant layer is decanted and sent for reuse.Type: GrantFiled: May 6, 2008Date of Patent: March 29, 2011Inventor: David Gandhi Nahmad
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Publication number: 20110036633Abstract: A traveling cuttings distributor (TCD) system that is capable of horizontal and vertical positioning for use in vacuuming, auguring or pumping drill cuttings from a drill rig shaker screen trough, drying/minimizing the cuttings and depositing by gravity cuttings while under vacuum into individual cuttings boxes as it moves from one cuttings box to the next or to a bulk system, a cuttings injection system or other cuttings processing system, the system including a vacuum tank having a filter system therein and a large silencer or exhaust system separated by a blower system capable of producing a high vacuum on an opening in the vacuum tank for engaging an opening in a cuttings box or other cuttings processing equipment. The TCD system is capable of being operated without the need for skilled service personnel, while further improving drilling performance, providing reduced environmentally friendly waste material and volumes, recovers expensive drilling mud, thus, reducing the cost of cuttings waste disposal.Type: ApplicationFiled: May 7, 2009Publication date: February 17, 2011Inventor: Jeffrey A. Reddoch
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Patent number: 7886848Abstract: A method and apparatus for disposing of drill cuttings 500 from an oil and/or gas well drilling platform 510, comprising (a) transporting the drill cuttings 520 to a cuttings collection area 530 on the platform 510; (b) providing a barge 10, the barge 10 having at least one storage area 30, a cover 100 operably connected to the at least one storage area 30, and covering the at least one storage area 30; (c) placing the cover 100 in a first open state so that cuttings 500 can be placed in the at least one storage area 30; (d) transporting the drill cuttings 500 from the cuttings collection area 530 to the at least one storage area of the barge 10; (e) placing the cover 100 in a closed state so that the cuttings 520 in the storage area 30 of the barge 10 are contained; (f) transporting the barge 10 from the drilling platform 510 to a collection site 540; (g) placing the cover 100 in a second open state so that the cuttings 520 in the storage area 30 can be removed; and (h) removing the cuttings 520 from the stoType: GrantFiled: March 23, 2009Date of Patent: February 15, 2011Assignee: Central Boat Rentals, Inc.Inventors: Michael Patterson, Edward L. Shearer
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Patent number: 7867399Abstract: A method is provided of recycling and decontaminating oil-based waste drilling mud and cuttings contaminated with oil-based waste drilling mud. A facility for performing the method is also provided. The method includes removing the coarse solids from the mud, breaking the emulsion, and separating the hydrophobic phase from the water phase and the solid phase. The solids may then be treated by either or both of two approaches. One approach involves vaporizing all residual oil and water from the solids, and burning off the vaporized oil. Another approach involves at least partially vaporizing the residual oil from the solids and recondensing the oil. The method produces a solid “soil” product that is free from oil contamination (or is sufficiently decontaminated to allow reuse), an oil product that is fit for reuse, and clean air emissions. A thermal desorber or a soil dryer can be used to efficiently vaporize the oil at low temperature.Type: GrantFiled: October 30, 2009Date of Patent: January 11, 2011Assignee: Arkansas Reclamation Company, LLCInventors: Thomas P. Jones, Charles R. Richesin, Richard T. Davis