Specific Propping Feature (epo) Patents (Class 166/280.1)
  • Publication number: 20140090306
    Abstract: This invention relates to a resin preparable by reaction of a phenol/formaldehyde novolak with tetraethyl orthosilicate in a mass ratio above 28:1, wherein the phenol of the phenol/formaldehyde novolak is substituted or unsubstituted hydroxybenzene or a mixture of two or more such phenols, and to a particulate material coated with said resin. Said particles can be used e.g. in the shell molding process for the production of shell molds and shell cores; and as proppants for use in the hydraulic fracturing process.
    Type: Application
    Filed: April 20, 2012
    Publication date: April 3, 2014
    Applicant: Huettenes-Albertus Chemische Werke GmbH
    Inventors: Nicolas Egeler, Marek Torbus, Milan Knezevic, Gee Ho Bae, Robert Laitar, Douglas Trinowski, Wolfgang Seelbach
  • Patent number: 8685902
    Abstract: The invention relates to the area of oil and gas production (especially, to the production in which the propping technique is used for the stimulation of a well) and can be used in the development of a composition and a method of production of propping agents (proppant), as well as a method of application of these propping agents. A new type of proppant, proppant production method and use of the proppant are based on allowing the production of proppant having an apparent density of 2.5 to 4.0 g/cm3, as well as a high mechanical strength and a high chemical durability. A proppant contains granules made of the sintered feedstock, wherein the charge mixture containing at least one of the following materials—silicon carbide, boron carbide, titanium carbide, silicon nitride, titanium nitride, boron nitride, silicon oxynitrides, SIALON-type compounds, was used as the feedstock.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: April 1, 2014
    Assignee: Schlumberger Technology Corporation
    Inventors: Elena Mikhailovna Pershikova, Eamonn O'Neill
  • Publication number: 20140083695
    Abstract: Methods of enhancing fracturing stimulation in subterranean formations using in situ foam generation and pressure pulsing including providing a jetting fluid comprising an aqueous base fluid; providing a fracturing fluid comprising an aqueous base fluid, a gelling agent, a proppant agent, a gas generating chemical, and a gas activator; introducing the jetting fluid into a subterranean formation to create or enhance at least one fracture therein; introducing the fracturing fluid into the at least one fracture; applying intermittent pressure pulsing to the fracturing fluid to extend the at least one fracture.
    Type: Application
    Filed: September 25, 2012
    Publication date: March 27, 2014
    Applicant: Halliburton Energy Services, Inc.
    Inventor: Philip D. Nguyen
  • Publication number: 20140076558
    Abstract: Methods of consolidating proppant particulates in a subterranean formation comprising providing a proppant slurry comprising a carrier fluid, proppant particulates, and a curable resin composition. The curable resin composition comprises a solid curable resin particulate, a curing agent, and a silane coupling agent. The proppant slurry is introduced into a fracture within a subterranean formation and thereafter solid curable resin particulate softens so as to coat the proppant particulates and then is cured so as to consolidate the proppant particulates into a permeable proppant pack.
    Type: Application
    Filed: September 18, 2012
    Publication date: March 20, 2014
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Philip D. Nguyen, Jimmie D. Weaver
  • Publication number: 20140076559
    Abstract: Methods of treating a subterranean formation including introducing a fracturing fluid into the subterranean formation at a pressure sufficient to create or enhance at least one fracture therein; providing a treatment fluid comprising a base fluid, proppant particulates, a crosslinking agent, and a stress-activated resin comprising a stress-activated moiety, wherein the stress-activated resin does not substantially react with the crosslinking agent until placed under stress; introducing the treatment fluid into the at least one fracture of the subterranean formation; removing the pressure in the subterranean formation such that the fracture closes on the treatment fluid and applies a stress to the stress-activated resin; and crosslinking the resin with the crosslinking agent, thereby forming a resinous proppant pack therein.
    Type: Application
    Filed: September 18, 2012
    Publication date: March 20, 2014
    Applicant: Halliburton Energy Services, Inc.
    Inventors: James William Ogle, Philip D. Nguyen
  • Publication number: 20140076557
    Abstract: In stimulating a subterranean zone surrounding a well bore, a perforation trajectory is identified that is transverse to a predicted direction of primary fracture propagation in the subterranean zone. A perforating gun in the well bore is aimed to perforate in the perforation trajectory, and then operated to perforate the well bore in the perforation trajectory. Thereafter, a fracture treatment is performed on the subterranean zone through the perforations.
    Type: Application
    Filed: September 18, 2012
    Publication date: March 20, 2014
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventor: Jim B. Surjaatmadja
  • Publication number: 20140060826
    Abstract: Methods of forming highly conductive pillars and channels in propped fractures in a subterranean formation including a) introducing high-density proppants into a fracture within a subterranean formation, wherein the fracture has a lower portion and an upper portion; b) introducing a spacer gel into the fracture; c) introducing low-density proppants into the fracture; d) repeating any sequence of a), b), and c) until a predetermined amount of high-density proppants, spacer gel, and low-density proppants has been introduced into the fracture; e) allowing the high-density proppants to migrate to the lower portion of the fracture and form a high-density proppant pack; and f) allowing the low-density proppants to migrate to the upper portion of the fracture and form a low-density proppant pack.
    Type: Application
    Filed: August 28, 2012
    Publication date: March 6, 2014
    Applicant: Halliburton Energy Services, Inc.
    Inventor: Philip D. Nguyen
  • Publication number: 20140060828
    Abstract: Methods of treating subterranean formations with treatment fluids comprising foam particulates are provided. One embodiment provides a method of fracturing a subterranean formation comprising introducing a fracturing fluid into the subterranean formation at a pressure sufficient to create or enhance at least one fracture therein; providing proppant aggregates themselves comprising proppant particles coated with a binding fluid and having foamed particulates adhered thereto; and placing the proppant aggregates suspended in gelled treatment fluid into at least a portion of the fracture so as to form a proppant pack therein.
    Type: Application
    Filed: August 29, 2012
    Publication date: March 6, 2014
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Philip D. Nguyen, Tingji Tang, Jimmie D. Weaver
  • Publication number: 20140060831
    Abstract: Methods, fluids, equipment and/or systems for treating a subterranean formation penetrated by a wellbore, which use less water, less energy, less equipment, have a smaller wellsite footprint, a reduced carbon dioxide emission, an improved distribution of proppant among a plurality of flow paths, an improved stimulation of reservoir fluid production, an improved risk management method, or the like, or any combination thereof, relative to comparable conventional treatment methods, fluids, equipment and/or systems such as, for example, hydraulic fracture treatments of subterranean formations using slickwater and/or high-viscosity treatment fluids.
    Type: Application
    Filed: March 14, 2013
    Publication date: March 6, 2014
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventor: Matthew J. Miller
  • Publication number: 20140060830
    Abstract: A method for treating a well includes positioning a seat within the well that is capable of catching an obstruction which will prevent flow of fluid downstream of the seat. According to one embodiment of the invention, the seat is formed by expanding a sleeve with a ring positioned around its periphery or as a subsequent step in the process. As the sleeve is expanded over the ring, the seat is formed. Once the seat is formed, an obstruction in the form of a ball or dart is dropped down to the seat. In another embodiment the sleeve acts as a stop for a secondary valve seat which catches the obstruction. The casing uphole of the seat is perforated so that fluid under pressure will enter the formation surrounding the perforations. The process is particularly useful for fracing a formation in a horizontal well where numerous stages are required to complete the stimulation of the well. There is also potential application in vertical wells.
    Type: Application
    Filed: September 6, 2012
    Publication date: March 6, 2014
    Applicant: Texian Resources
    Inventor: Douglas N. Love
  • Publication number: 20140060827
    Abstract: Methods comprising providing a carrier fluid having a density; providing a proppant aggregates having a density higher than that of the carrier fluid; and, providing low-density particulates having a density lower than that of the carrier fluid. Then the carrier fluid, proppant aggregates, and low-density particulates are combined to create a propping fluid. The propping fluid then is placed into a fracture within a subterranean formation wherein the low-density particulates slow the settling of the proppant aggregates within the fracture.
    Type: Application
    Filed: August 29, 2012
    Publication date: March 6, 2014
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Philip D. Nguyen, Jonathan Dale Worley
  • Publication number: 20140060829
    Abstract: Methods of propping subterranean fractures using swellable particulates. Some methods alternate the placement into a fracture of proppant and swellable particulates. Other methods alternate the placement into a fracture of proppant-free fluid and swellable particulates. Still other methods combine proppant and swellable particulates into a single fluid and place that fluid into a subterranean fracture. The methods are useful for treatment of low closure stress formations.
    Type: Application
    Filed: August 29, 2012
    Publication date: March 6, 2014
    Applicant: Halliburton Energy Services, Inc.
    Inventor: Philip D. Nguyen
  • Publication number: 20140054033
    Abstract: Methods are provided that include a method of a) placing a hydrojetting tool into a subterranean formation; b) introducing a jetting fluid that includes an aqueous base fluid, a stabilizing agent, and a cutting agent into the subterranean formation by use of the hydrojetting tool at a rate sufficient to create at least one fracture; c) introducing a slug fluid that includes an aqueous base fluid and a degradable diverting agent into an annulus formed between the hydrojetting tool and the subterranean formation; d) introducing a propping fluid that includes an aqueous base fluid and proppants coated with a consolidating agent into the annulus formed between the hydrojetting tool and the subterranean formation; and e) placing the proppants in the fracture.
    Type: Application
    Filed: August 27, 2012
    Publication date: February 27, 2014
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Philip D. Nguyen, Jeff T. Fleming
  • Patent number: 8657003
    Abstract: Methods of controlling fluid loss, providing fluid diversion, or plugging a portion of a well bore using a treatment fluid including relatively insoluble borate material particulates that are placed into a subterranean formation to provide the desired action and then degrade over time in the subterranean formation in the presence of an aqueous fluid such as water.
    Type: Grant
    Filed: December 1, 2010
    Date of Patent: February 25, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Thomas D. Welton, Bradley L. Todd
  • Patent number: 8657002
    Abstract: A method for minimizing the amount of metal crosslinked viscosifier necessary for treating a wellbore with proppant or gravel is given. The method includes using fibers to aid in transporting, suspending and placing proppant or gravel in viscous carrier fluids otherwise having insufficient viscosity to prevent particulate settling. Fibers are given that have properties optimized for proppant transport but degrade after the treatment into degradation products that do not precipitate in the presence of ions in the water such as calcium and magnesium. Crosslinked polymer carrier fluids are identified that are not damaged by contaminants present in the fibers or by degradation products released by premature degradation of the fibers.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: February 25, 2014
    Assignee: Schlumberger Technology Corporation
    Inventors: Dean M. Willberg, Christopher N. Fredd, Marina Bulova
  • Publication number: 20140048262
    Abstract: Methods for placing proppant aggregates using a diverting fluid comprising a diverting agent and a packing fluid. Proppant aggregates are introduced into a fracture that is fluidically connected to a wellbore through a plurality of perforations. Thereafter, a diverting diverting fluid is introduced into the wellbore to seal some perforations and leave at least one unsealed perforation. Once some perforations are sealed, a packing fluid is introduced into the fracture through the at least one unsealed perforation, thereby forming the proppant aggregates to move together and form a proppant bed within the fracture.
    Type: Application
    Filed: August 16, 2012
    Publication date: February 20, 2014
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Jonathan Dale Worley, Philip D. Nguyen
  • Patent number: 8646530
    Abstract: A method includes treating a first formation intersecting a wellbore, preparing a diversion fluid including an inactivated viscosifier and an inactivated thinning agent, and positioning an amount of the diversion fluid to isolate the first formation. An activator is then delivered to the diversion fluid, thereby activating the inactivated viscosifier and triggering a thinning agent activation process.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: February 11, 2014
    Assignee: Schlumberger Technology Corporation
    Inventor: Don Williamson
  • Publication number: 20140034309
    Abstract: A subterranean zone surrounding a well bore is fractured with a fracturing fluid. Micro proppant of 200 mesh or smaller is pumped into far field fractures of the subterranean zone and props the far field fractures open.
    Type: Application
    Filed: August 2, 2012
    Publication date: February 6, 2014
    Inventors: Rajesh Kumar Saini, Bradley L. Todd, Jimmie D. Weaver, James W. Ogle, David Michael Loveless, Philip Nguyen
  • Patent number: 8636065
    Abstract: A method of heterogeneous proppant placement in a subterranean fracture is disclosed. The method comprises injecting well treatment fluid including proppant (16) and proppant-spacing filler material called a channelant (18) through a wellbore (10) into the fracture (20), heterogeneously placing the proppant in the fracture in a plurality of proppant clusters or islands (22) spaced apart by the channelant (24), and removing the channelant filler material (24) to form open channels (26) around the pillars (28) for fluid flow from the formation (14) through the fracture (20) toward the wellbore (10). The proppant and channelant can be segregated within the well treatment fluid, or segregated during placement in the fracture. The channelant can be dissolvable particles, initially acting as a filler material during placement of the proppant in the fracture, and later dissolving to leave the flow channels between the proppant pillars.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: January 28, 2014
    Assignee: Schlumberger Technology Corporation
    Inventors: Timothy Lesko, J. Ernest Brown, Dean M. Willberg, Ivan V. Kosarev, Anatoly Medvedev
  • Publication number: 20140020892
    Abstract: A proppant discharge system has a container with an outlet formed at a bottom thereof and a gate slidably affixed at the outlet so as to be movable between a first position covering the outlet to second position opening the outlet, and a support structure having an actuator thereon. The container is removably positioned on the top surface of the support structure. The actuator is engageable with gate so as to move the gate from the first position to the second position. A conveyor underlies the container so as to receive proppant as discharged from the container through the outlet. The container is a ten foot ISO container.
    Type: Application
    Filed: October 25, 2012
    Publication date: January 23, 2014
    Applicant: PlNCH FLATBED, LLC
    Inventors: John OREN, Joshua OREN
  • Publication number: 20140014338
    Abstract: The stimulated rock volume (SRV) of a subterranean formation may be increased by pumping viscous fracturing fluid into the formation in a first stage to create or enlarge a primary fracture, decreasing the pumping in order for the fluid to increase in viscosity within the primary fracture, and then continuing to pump viscous fluid into the formation in a second stage. The fluid pumped into the second stage is diverted away from the primary fracture and a secondary fracture is created. The directional orientation of the secondary fracture is distinct from the directional orientation of the primary fracture. The fluid of the first stage may contain a viscosifying polymer or viscoelastic surfactant or may be slickwater.
    Type: Application
    Filed: April 11, 2013
    Publication date: January 16, 2014
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: James B. Crews, Tianping Huang
  • Publication number: 20140008067
    Abstract: Disclosed embodiments relate to well treatment fluids and methods that utilize nano-particles. Exemplary nano-particles are selected from the group consisting of particulate nano-silica, nano-alumina, nano-zinc oxide, nano-boron, nano-iron oxide, and combinations thereof. Embodiments also relate to methods of cementing that include the use of nano-particles. An exemplary method of cementing comprises introducing a cement composition into a subterranean formation, wherein the cement composition comprises cement, water and a particulate nano-silica. Embodiments also relate to use of nano-particles in drilling fluids, completion fluids, simulation fluids, and well clean-up fluids.
    Type: Application
    Filed: September 12, 2013
    Publication date: January 9, 2014
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Craig Wayne Roddy, Jiten Chatterji, Roger Stanley Cromwell
  • Publication number: 20130341023
    Abstract: A method of hydraulic fracturing is provided which uses metal silicides to generate significant pressure inside a wellbore. The method comprises injecting a fracturing fluid and an aqueous or reacting fluid into the wellbore to react with the fracturing fluid. The fracturing fluid comprises metal silicide, which may be uncoated or coated, and hydrocarbon fluid. The aqueous fluid comprises water. The reacting fluid comprises water or a solvent. A method of removing buildup in pipelines such as subsea pipelines which uses metal silicides to generate heat and pressure inside the pipeline is also provided. The method comprises injecting an organic slug and an aqueous slug. The organic slug comprises metal silicide and hydrocarbon fluid. The aqueous slug comprises water. Alternatively, there is also provided a method for purifying flowback water produced from a hydraulic fracturing process comprising adding metal silicide to the flowback water produced from a hydraulic fracturing process.
    Type: Application
    Filed: June 25, 2013
    Publication date: December 26, 2013
    Inventors: Paul H. KRUMRINE, III, James S. FALCONE, JR., Michael Lefenfeld
  • Patent number: 8613314
    Abstract: The invention discloses a method of treating a subterranean formation of a well bore, including the steps of providing a first treatment fluid substantially free of macroscopic particulates; pumping the first treatment fluid into the well bore at different pressure rates to determine the maximum matrix rate and the minimum frac rate; subsequently, pumping the first treatment fluid above the minimum frac rate to initiate at least one fracture in the subterranean formation; providing a second treatment fluid comprising a second carrier fluid, a particulate blend including a first amount of particulates having a first average particle size between about 100 and 2000 ?m and a second amount of particulates having a second average particle size between about three and twenty times smaller than the first average particle size, such that a packed volume fraction of the particulate blend exceeds 0.
    Type: Grant
    Filed: November 8, 2010
    Date of Patent: December 24, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: Marieliz Garcia-Lopez De Victoria, Carlos Abad
  • Patent number: 8607870
    Abstract: The invention discloses a method of treating a subterranean formation of a well bore, that provides a first treatment fluid; subsequently, pumps the first treatment fluid to initiate a network of low conductivity fractures in the subterranean formation; provides a second treatment fluid comprising a second carrier fluid, a particulate blend including a first amount of particulates having a first average particle size between about 100 and 2000 ?m and a second amount of particulates having a second average particle size between about three and twenty times smaller than the first average particle size, such that a packed volume fraction of the particulate blend exceeds 0.74; and subsequently, pumps the second treatment fluid to initiate at least one high conductivity fracture in the subterranean formation, wherein the high conductivity fracture has a conductivity higher than the average of the conductivity of the low conductivity fractures and connects the network of the low conductivity fractures.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: December 17, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: Hongren Gu, Yiyan Chen, Xiaowei Weng
  • Publication number: 20130319667
    Abstract: Disclosed herein is a degradable latex comprising a stable dispersion of macromolecules in a liquid medium, wherein the macromolecules comprise a primary moiety comprising a plurality of functional groups, and a plurality of secondary moiety each chemically bonded through a labile linkage to the functional groups of the primary moiety, wherein at least a portion of residues of the secondary moiety are dispersible in the liquid medium. Methods of making and degrading the degradable latex, treating a formation and a treatment fluid are also disclosed.
    Type: Application
    Filed: October 18, 2011
    Publication date: December 5, 2013
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventor: Yiyan Chen
  • Patent number: 8596362
    Abstract: A hydraulic fracturing method includes injecting a fluid containing a transitory binder and filler into a substantially horizontal well casing without any placement apparatus present in the substantially horizontal well casing, the filler containing particles of a solid material. The transitory binder and filler are placed over first perforations in the well casing. The method includes opening second perforations through the well casing, injecting additional fracturing fluid through the substantially horizontal well casing, and forming a plug over and through the first perforations with the transitory binder and filler.
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: December 3, 2013
    Assignee: Baker Hughes Incorporated
    Inventor: Scott Gregory Nelson
  • Patent number: 8596361
    Abstract: Compositions comprising a proppant core having an outer surface and polymeric microspheres attached to at least a portion of the outer surface are described. The compositions are useful, for example, to increase the productivity of a hydrocarbon oil or gas bearing well.
    Type: Grant
    Filed: December 5, 2008
    Date of Patent: December 3, 2013
    Assignees: 3M Innovative Properties Company, Schlumberger Technology Corporation
    Inventors: Dean Michael Willberg, James G. Carlson, Ignatius A. Kadoma, Yong K. Wu, Michael D. Crandall
  • Publication number: 20130312962
    Abstract: Methods for enhancing the conductivity of propped fractures in subterranean formations may involve using a tackifier to minimize particulate settling during particulate placement operations in subterranean formations. For example, methods may involve introducing a first treatment fluid into a wellbore extending into a subterranean formation at a pressure sufficient to create or extend at least one fracture in the subterranean formation; and introducing a second treatment fluid into the wellbore at a pressure sufficient to maintain or extend the fracture in the subterranean formation. The first treatment fluid may include at least a first aqueous base fluid and a tackifier. The second treatment fluid may include at least a second aqueous base fluid and a proppant particle.
    Type: Application
    Filed: May 22, 2012
    Publication date: November 28, 2013
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Jimmie D. Weaver, Richard D. Rickman, Philip D. Nguyen
  • Publication number: 20130306315
    Abstract: A method for hydraulically fracturing subterranean formations in a manner resulting in improved propping of fractures, particularly in ductile rock formations such as gas-containing shales having a high clay content. The method allows for improved hydrocarbon production. The method involves injecting a first fluid having a first proppant concentration into the subsurface formation to form a fracture, reducing the pressure in the fracture and allowing the fracture to substantially close, and injecting a second fluid having a second proppant concentration into the fracture to re-open the fracture. The second proppant concentration is greater than the first proppant concentration. A portion of the proppant is effectively retained in the reopened fracture.
    Type: Application
    Filed: October 19, 2011
    Publication date: November 21, 2013
    Inventors: Robert D. Kaminsky, Abdel Wadood M. El-Rabaa
  • Patent number: 8584754
    Abstract: Delayed-tackifier coated particulates and treatment fluids comprising delayed-tackifier coated particulates wherein the tackifier is associated with a surfactant. The treatment fluids may be used in methods that include providing a treatment fluid that comprises an aqueous base fluid and a delayed-tackifier coated particulate and introducing that treatment fluid into a wellbore penetrating a subterranean formation. Once within the formation, forming a particulate pack, wherein the particulate pack is a gravel pack along a portion of the wellbore, a proppant pack within a portion of the subterranean formation, or both.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: November 19, 2013
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Philip D. Nguyen, Loan K. Vo, Feng Liang, Jimmie D. Weaver
  • Patent number: 8584755
    Abstract: The invention provides economically effective methods for hydraulic fracturing a subterranean formation that ensure improvement of the hydraulic fracture conductivity because of forming strong proppant clusters uniformly placed in the fracture throughout its length. One of these methods comprises: a first stage comprising injection of fracturing fluid into a borehole, the fluid containing thickeners to create a fracture in the formation; and a second stage comprising introduction of proppant into the injected fracturing fluid to prevent closure of the created fracture, and further, comprising introducing an agent into the fracturing fluid to provide formation of proppant clusters in the created fracture and channels for flowing formation fluids.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: November 19, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: Dean M. Willberg, Matthew J. Miller, Marc Jean Thiercelin, Ivan Vitalievich Kosarev
  • Publication number: 20130299167
    Abstract: A fracturing method comprises: pumping a first stream of liquefied petroleum gas and gelling agent with a first frac pressure pump; pumping a second stream of lubricated proppant with a second frac pressure pump; combining the first stream and the second stream within a wellhead into a combined stream, pumping the combined stream into a hydrocarbon reservoir; and subjecting the combined stream in the hydrocarbon reservoir to fracturing pressures. A fracturing apparatus comprises: a first frac pressure pump connected to a first port of a wellhead; a second frac pressure pump connected to a second port of the wellhead; a frac fluid source connected to simply a stream of frac fluid comprising liquefied petroleum gas to the first frac pressure pump; a gel source connected to supply a gelling agent into the frac fluid; and a proppant supply source connected to supply lubricated proppant to the second frac pressure pump.
    Type: Application
    Filed: May 14, 2013
    Publication date: November 14, 2013
    Applicant: GasFrac Energy Services Inc.
    Inventors: Victor Fordyce, Eric Tudor
  • Patent number: 8579028
    Abstract: The present invention involves methods of using particulates coated with a tackifying agent that need not be used immediately once they are prepared and that provide increased viscosity when placed into an aqueous fluid. The described methods include the steps of contacting particulates with a tackifying agent to create tackified particulates; contacting the tackified particulates with a partitioning agent to form coated particulates that are capable of being stored for a time period, wherein the partitioning agent comprises a hydratable polymeric material; and, placing the coated particulates in an aqueous treatment fluid whereby the partitioning agent hydrates and increases the viscosity of the treatment fluid.
    Type: Grant
    Filed: June 9, 2009
    Date of Patent: November 12, 2013
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Philip D. Nguyen, Jimmie D. Weaver
  • Patent number: 8580715
    Abstract: A composition comprising a fluorinated pyridinium cationic compound of formula (I) wherein Rf is R1(CH2CH2)n—, R1 is a C7 to C20 perfluoroalkyl group interrupted by at least one catenary oxygen atom, each oxygen bonded to two carbon atoms, n is an integer of 1 to 3, and R is H, C1 to C5 linear or branched alkyl, or C1 to C5 linear or branched alkoxy, having surfactant properties for lowering surface tension in an aqueous medium or solvent medium, and for use as a foaming agent.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: November 12, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Sheng Peng, Allison Mary Yake, Cheryl Lynn Iaconelli
  • Publication number: 20130292118
    Abstract: Generally, hydrophobic/oleophobic proppant particles may have hydrophobic and oleophobic surfaces. Hydrophobic/oleophobic proppant particles may be utilized for treating at least a portion of a subterranean formation with a treatment fluid comprising a base fluid and the hydrophobic/oleophobic proppant particle. Treatments may involve the formation of proppant packs, gravel packs, and the like.
    Type: Application
    Filed: May 3, 2012
    Publication date: November 7, 2013
    Applicant: Halliburton Energy Services, Inc.
    Inventor: Philip D. Nguyen
  • Publication number: 20130284438
    Abstract: The invention relates to a method of generating a network of fractures in a rock formation for extraction of hydrocarbon or other resource from the formation. The method includes the steps of i) enhancing a network of natural fractures and incipient fractures within the formation by injecting a non-slurry aqueous solution into the well under conditions suitable for promoting dilation, shearing and/or hydraulic communication of the natural fractures, and subsequently ii) inducing a large-fracture network that is in hydraulic communication with the enhanced natural fracture network by injecting a plurality of slurries comprising a carrying fluid and sequentially larger-grained granular proppants into said well in a series of injection episodes.
    Type: Application
    Filed: December 22, 2011
    Publication date: October 31, 2013
    Inventors: Maurice B. Dusseault, Roman Bilak
  • Publication number: 20130284437
    Abstract: Generally, methods for propping complex fracture networks in tight subterranean formations may involve introducing a first treatment fluid comprising a first base fluid and a first propping agent having a mean particulate size distribution ranging from about 0.5 microns to about 20 microns into a fracture network in a subterranean formation; and then introducing a second treatment fluid comprising a second base fluid and a second propping agent having a mean particulate size distribution greater than about 35 microns into the fracture network.
    Type: Application
    Filed: April 30, 2012
    Publication date: October 31, 2013
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Philip D. Nguyen, Jeff T. Fleming
  • Publication number: 20130264055
    Abstract: A method of fracturing a subterranean formation comprising at least in part shale formation, comprises providing a carrier fluid; providing a particulate blend including a first amount of particulates having a first average particle size between about 100 and 2000 microns and a second amount of particulates having a second average particle size between about three and twenty times smaller than the first average particle size, such that a packed volume fraction of the particulate blend exceeds 0.75; combining the carrier fluid and the particulate blend into a fracturing slurry; fracturing the formation with the fracturing slurry to create at least a fracture; and removing the second amount of particulates from the fracture.
    Type: Application
    Filed: June 6, 2013
    Publication date: October 10, 2013
    Inventors: Ryan Hartman, Mohan K.R. Panga, Bruno Drochon, John W. Still
  • Patent number: 8540024
    Abstract: Hydraulic fracturing an individual reservoir fracturing layer of a subterranean formation to produce heterogeneous proppant placement is given in which pillars of proppant are placed such that the pillars do not extend the entire height of the fracture (for a vertical fracture) but are themselves interrupted by channels so that the channels between the pillars form pathways that lead to the wellbore. The method combines methods of introducing slugs of proppant-carrying and proppant-free fluids through multiple clusters of perforations within a single fracturing layer of rock, with methods of ensuring that the slugs exiting the individual clusters do not merge.
    Type: Grant
    Filed: July 3, 2007
    Date of Patent: September 24, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: Ivan Vitalievich Kosarev, Oleg Olegovich Medvedev, Anatoly Vladimirovich Medvedev, Ian Walton
  • Patent number: 8534356
    Abstract: Methods of treating a subterranean formation can comprise introducing a pre-flush fluid into a subterranean formation having particulate matter therein; introducing a curable adhesive composition comprising a silane coupling agent and a polymer, the polymer having a reactive silicon end group, into the subterranean formation subsequent to the pre-flush fluid; introducing an aqueous post-flush fluid into the subterranean formation subsequent to the curable adhesive composition; and allowing the curable adhesive composition to at least partially consolidate particulate matter within the subterranean formation.
    Type: Grant
    Filed: June 26, 2012
    Date of Patent: September 17, 2013
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Philip D. Nguyen, Richard D. Rickman, Jimmie D. Weaver, Bhadra Desai
  • Patent number: 8528638
    Abstract: A method of producing oil which begins by drilling, casing and inserting a tubing string in a wellbore. The method then perforates both an upper portion and a lower portion of the casing to establish communication between the wellbore with a upper horizontal fracture and a lower horizontal fracture. A retrievable packer or a seal assembly is inserted horizontally between the tubing string and the casing and vertically between the upper horizontal fracture and the lower horizontal fracture for heat isolation. Steam is then injected into the wellbore both into the upper horizontal fracture and the lower horizontal fracture. Heavy oil is then produced from the lower horizontal fracture while injecting steam into the upper horizontal fracture.
    Type: Grant
    Filed: November 23, 2010
    Date of Patent: September 10, 2013
    Assignee: ConocoPhillips Company
    Inventor: Shuxing Dong
  • Patent number: 8522875
    Abstract: The invention describes improved fracturing compositions, methods of preparing fracturing compositions and methods of use. Importantly, the subject invention overcomes problems in the use of mists as an effective fracturing composition particularly having regard to the ability of a mist to transport an effective volume of proppant into a formation. As a result, the subject technologies provide an effective economic solution to using high ratio gas fracturing compositions that can be produced in a continuous (i.e. non-batch) process without the attendant capital and operating costs of current pure gas fracturing equipment.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: September 3, 2013
    Assignee: Calfrac Well Services Ltd.
    Inventors: Timothy Tyler Leshchyshyn, Peter William Beaton, Thomas Michael Coolen
  • Publication number: 20130220605
    Abstract: Methods and systems of fracturing subterranean formations are provided comprising pumping metacritical phase natural gas into a subterranean formation to create or extend one or more fissures in the formation. Methods and systems may further comprise maintaining or increasing pressure of the metacritical phase natural gas in the formation by pumping more metacritical phase natural gas into the fissures to hold the fissures open. Methods and systems may further comprise delivering a proppant into the subterranean formation. Disclosed methods and systems may be used to extract hydrocarbons from subterranean formations without the use of liquids.
    Type: Application
    Filed: April 8, 2013
    Publication date: August 29, 2013
    Applicant: Expansion Energy, LLC
    Inventor: Expansion Energy, LLC
  • Patent number: 8511381
    Abstract: A system and method are disclosed for low damage gravel packing. The system comprises a well bore; a gravel packing slurry comprising a carrier fluid and a solids mixture, wherein the solids mixture comprises a plurality of volume-averaged particle size distribution (PSD) modes such that a packed volume fraction (PVF) exceeds 0.75, wherein the solids mixture comprises at least a proppant PSD mode and a fines PSD mode; a pump to circulate the slurry in the wellbore and form a proppant pack; and a dispersant source effective to facilitate fines flowback from the pack. The method comprises circulating the slurry through a wellbore to form a proppant pack; contacting fines in the pack with a dispersant; and passing fluid through the pack to remove fines from the pack.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: August 20, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: Mohan K. R. Panga, Balkrishna Gadiyar, Bruno Drochon, John W. Still
  • Publication number: 20130206408
    Abstract: Methods are described to make strong, tough, and/or lightweight glass-ceramic composites having a crystalline phase and an amorphous phase generated by viscous reaction sintering of a complex mixture of oxides and other materials. The present invention further relates to strong, tough, and lightweight glass-ceramic composites that can be used as proppants and for other uses.
    Type: Application
    Filed: March 18, 2013
    Publication date: August 15, 2013
    Applicant: OXANE MATERIALS, INC.
    Inventor: Oxane Materials, Inc.
  • Publication number: 20130206407
    Abstract: A fracturing material for supporting a bore hole, the fracturing material comprising a hardenable support material, and fibers embedded in the support material.
    Type: Application
    Filed: August 9, 2011
    Publication date: August 15, 2013
    Applicant: MONTANUNIVERSITAET LEOBEN
    Inventor: Herbert Hofstaetter
  • Patent number: 8505628
    Abstract: High solids content slurry, systems and methods. The slurry comprises a carrier fluid and a solids mixture of first, second, third and fourth particle size distribution (PSD) modes wherein the first PSD mode is at least three times larger than the second PSD mode, which is larger than the third PSD mode, which is larger than the fourth PSD mode, and wherein at least one of the second and third PSD modes is less than 3 times larger than the respective third or fourth PSD mode. The method comprises forming the slurry, positioning a screen in a wellbore and circulating the slurry through the wellbore such that the solids mixture is deposited between the screen and the wellbore. The system comprises a pump to circulate the slurry, a workstring to position the screen and means for converting the slurry to a gravel pack.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: August 13, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: Mohan Panga, Jean-Philippe Bedel, Yiyan Chen
  • Publication number: 20130199781
    Abstract: The present techniques provide methods and systems for fracturing reservoirs without directly treating them. For example, an embodiment provides a method for fracturing a subterranean formation. The method includes causing a volumetric increase in a zone proximate to the subterranean formation so as to apply a mechanical stress to the subterranean formation, creating a fracture network in the subterranean formation to improve permeability therein.
    Type: Application
    Filed: October 14, 2011
    Publication date: August 8, 2013
    Inventors: Bruce A. Dale, Kevin H. Searles, Sheng-Yuan Hsu, Michael S. Chelf
  • Patent number: 8496056
    Abstract: A method of fracturing a subterranean formation comprising at least in part shale formation, comprises providing a carrier fluid; providing a particulate blend including a first amount of particulates having a first average particle size between about 100 and 2000 microns and a second amount of particulates having a second average particle size between about three and twenty times smaller than the first average particle size, such that a packed volume fraction of the particulate blend exceeds 0.75; combining the carrier fluid and the particulate blend into a fracturing slurry; fracturing the formation with the fracturing slurry to create at least a fracture; and removing the second amount of particulates from the fracture.
    Type: Grant
    Filed: August 30, 2010
    Date of Patent: July 30, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: Ryan Hartman, Mohan K. R. Panga, Bruno Drochon, John W. Still