During Drilling Patents (Class 73/152.19)
  • Patent number: 10781682
    Abstract: Systems and methods for predicting an efficient hole cleaning in vertical, deviated, and horizontal holes by developing a hole cleaning model that combines hole cleaning and drilling rate to optimize performance. Specifically by ensuring optimum mud rheology values that have an influence on drilling mud from the aspects of ECD, cuttings transport, shear thinning, and thixotropic, and developing an effective hole cleaning model by utilizing carrying capacity index (CCI) and cutting concentration in annulus (CCA).
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: September 22, 2020
    Assignee: Saudi Arabian Oil Company
    Inventors: Mohammed Murif Al-Rubaii, Ossama R. Sehsah, Eno Itam Omini
  • Patent number: 10641092
    Abstract: Various embodiments relate to methods, apparatus, and systems for injecting and detecting compositions in drilling fluid systems. In various embodiments, the present invention provides a method of injecting and detecting a composition in a drilling fluid system. The method can include injecting the composition into the drilling fluid system. The drilling fluid system can include a gas detector. The method can also include detecting the composition with the gas detector.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: May 5, 2020
    Assignee: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Neil Patrick Schexnaider, James Dave Faul, II, James Harold Wright
  • Patent number: 10435967
    Abstract: Methods and apparatuses that measure thermal conductivity and electrical conductivity of a emulsified drilling fluid may be used to indirectly measure the salinity and the average specific gravity of the solids in the emulsified drilling fluid. For example, a drilling assembly may comprise a drill string extending into a wellbore penetrating a subterranean formation; a pump configured to circulate a drilling fluid through the drilling assembly; a first flow line fluidly coupling the wellbore to a retention pit; a second flow line fluidly coupling the retention pit to the pump; a third flow line fluidly coupling the pump to the drill string; and an in-line analysis system fluidly coupled to the retention pit, fluidly coupled to the second flow line, or fluidly coupled to the third flow line, the in-line analysis system comprising a thermal conductivity meter and/or an electrical conductivity meter to a sample container.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: October 8, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Kevin Gregory Kleinguetl, Dale E. Jamison, Drew A. Fowler, Brice Aaron Jackson
  • Patent number: 10190407
    Abstract: A method for evaluating inflow or outflow in a subterranean wellbore includes acquiring first and second axially spaced pressure measurements in the wellbore. The pressure measurements may then be processed to obtain an interval density of drilling fluid between the measurement locations. A tool string including a large number of axially spaced pressure sensors (e.g., four or more or even six or more) electronically coupled with a surface processor via wired drill pipe may be used to obtain a plurality of interval densities corresponding to various wellbore intervals. The interval density may be measured during static conditions or while drilling and may be further processed to compute a density of an inflow constituent in the annulus. Changes in the computed interval density with time may be used as an indicator of either an inflow event or an outflow event.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: January 29, 2019
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: John Rasmus, William Lesso, John James
  • Patent number: 10119396
    Abstract: A measure of the hydraulic conductivity, FC, is obtained to characterize the leaky medium behind well casing between adjacent hydrocarbon producing layers is a subsurface reservoir. The value of FC can be utilized in estimating the rate of flow from a secondary reservoir layer contributing to the total production through the wellbore based on the respective well pressures at a given time. The well pressures are calculated from a model based on the individual properties of and the amounts of fluid produced from these layers. Once there is a reasonable match between the calculated pressures and the measured pressures during a transient test, the parameters that have been used in calculating the model pressures are stored as characteristic parameters of the reservoir system. Such characteristic parameters are utilized in assessing the commercial producibility of the reservoirs.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: November 6, 2018
    Assignee: Saudi Arabian Oil Company
    Inventor: Noor M. Anisur Rahman
  • Patent number: 9938820
    Abstract: A downhole gas detection tool includes a housing; a first test module that includes a first fluid test chamber operable to fluidly couple to an annulus of a wellbore to receive a first portion of a wellbore fluid, the first test module further including an acoustic fluid sensor to measure a fluid acoustic velocity and attenuation of the first portion of the wellbore fluid received in the first fluid test chamber, and a fluid resistivity sensor to measure a fluid resistivity of the first portion of the wellbore fluid received in the first fluid test chamber; and a second test module including a second fluid test chamber operable to fluidly couple to the annulus of the wellbore to receive a second portion of the wellbore fluid, and a pressure-temperature (PT) sensor to measure at least one of a pressure or a temperature of the second portion of the wellbore fluid.
    Type: Grant
    Filed: July 1, 2015
    Date of Patent: April 10, 2018
    Assignee: Saudi Arabian Oil Company
    Inventors: Clovis Satyro Bonavides, Denis Philippe Schmitt, Mohd Azizi Ibrahim
  • Patent number: 9808960
    Abstract: One example of correlating energy to mix well cement slurry under laboratory conditions to field conditions can be implemented as a method to determine energy to mix cement slurry. Electrical power supplied to an electric mixer in mixing a specified well cement slurry is measured. An energy to mix the specified well cement slurry is determined from the measuring. The determined energy to mix the specified well cement slurry and specifications of field equipment for use in mixing the specified well cement slurry at a well site are compared. The field equipment is a different configuration than the electric mixer. Based on the comparing, it is determined whether the well cement slurry needs redesigning according to capabilities of the field equipment.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: November 7, 2017
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Thomas Singh Sodhi, Pauline Akinyi Otieno, Vivek S. Goel, Benjamin John Iverson
  • Patent number: 9733389
    Abstract: A downhole sampling tool is operated to obtain formation fluid from a subterranean formation, which then flows through a flowline of the downhole sampling tool. Real-time density and optical density sensors of the downhole sampling tool are co-located proximate the flowline. Contamination of the formation fluid in the flowline is then determined based, at least in part, on the real-time density and optical density measurements obtained utilizing the co-located sensors.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: August 15, 2017
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Kai Hsu, Julian J. Pop, Kentaro Indo
  • Patent number: 9163497
    Abstract: A computing device configured to determine when an alarm is triggered for a drilling operation is provided. Measured drilling data that includes a value measured for an input variable during a previous connection event of a drilling operation is received. A predicted value for a fluid flow back measure is determined by executing a predictive model with the measured drilling data as an input. The predictive model is determined using previous drilling data that includes a plurality of values measured for the input variable during a second drilling operation. The second drilling operation is a previous drilling operation at a different geographic wellbore location than the drilling operation. A fluid flow back measurement datum determined from sensor data is compared to the determined predicted value for the fluid flow back measure. An alarm is triggered on the drilling operation based on the comparison.
    Type: Grant
    Filed: October 20, 2014
    Date of Patent: October 20, 2015
    Assignee: SAS Institute Inc.
    Inventors: Moray Laing, Keith R. Holdaway
  • Patent number: 9134291
    Abstract: System, methods and devices for analyzing drilling fluids are presented herein. A fluid analysis system for determining at least one characteristic of a drilling fluid is disclosed. The system includes a pump and two reversible fluid ports each configured, when in a first state, to intake drilling fluid into the fluid analysis system and, when in a second state, to expel drilling fluid from the fluid analysis system. A valve fluidly couples the reversible fluid ports to the pump. The valve controls the respective states of the reversible fluid ports. At least one measurement module is fluidly coupled to the pump to receive drilling fluid therefrom. The at least one measurement module is configured to determine at least one characteristic of the drilling fluid. Filters can be fluidly coupled with each of the reversible fluid ports. The filters prevent solids of a predetermined size from entering the fluid analysis system.
    Type: Grant
    Filed: January 26, 2012
    Date of Patent: September 15, 2015
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Dale E. Jamison, Robert J. Murphy, Shawn Broussard, Peter Gonzalez
  • Patent number: 9043154
    Abstract: A method of calculating a 3-D geologic model in real time using, as input, 2-D geologic data. The 3-D is used for conducting further drilling operations. The model may be updated in real time using additional measurements obtained during drilling operations.
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: May 26, 2015
    Assignee: BAKER HUGHES INCORPORATED
    Inventor: Pascal Luxey
  • Patent number: 8997562
    Abstract: A system for sampling drilling fluid to identify one or more species of interest within the drilling fluid includes a heat exchanger. The heat exchanger has a first fluid passage and a second fluid passage. Each fluid passage has an inlet and an outlet. In addition, the system includes a supply line coupled to the inlet of the first fluid passage. Further, the system includes a return line coupled to the outlet of the second fluid passage. Still further, the system includes a drilling fluid heater having an inlet coupled to the outlet of the first fluid passage and an outlet. The system also includes a drilling fluid degasser having an inlet coupled to the outlet of the heater, a first outlet coupled to an analyzer configured to identify the one or more species of interest, and a second outlet coupled to the inlet of the second fluid passage.
    Type: Grant
    Filed: January 21, 2013
    Date of Patent: April 7, 2015
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Neil Patrick Schexnaider, Matthew Hay Henderson
  • Patent number: 8928322
    Abstract: A method for determining water saturation in a subsurface formation include determining an invasion depth in the formation from a plurality of measurements made within a wellbore drilled through the formation. The measurements have different lateral depths of investigation into the formation. Carbon and oxygen in the formation are measured at substantially a same longitudinal position as at a position of the determining the invasion depth. The measured carbon and oxygen and the invasion depth are used to determine the water saturation in a substantially uninvaded part of the formation.
    Type: Grant
    Filed: August 4, 2009
    Date of Patent: January 6, 2015
    Assignee: Schlumberger Technology Corporation
    Inventor: Bernard Montaron
  • Publication number: 20140352397
    Abstract: A fluid analyzer for a downhole tool positionable in a wellbore penetrating a subterranean formation is provided. The fluid analyzer includes an optical sensor positioned in the downhole tool to receive a downhole fluid therefrom. The optical sensor includes an optical cell to measure properties of the downhole fluid in a flowline of the downhole tool, and has a wavelength range. The fluid analyzer also includes a calibration fluid having a liquid that absorbs outside of the wavelength range, and a calibrator. The calibrator includes a fluid source housing the calibration fluid and at least one valve. The fluid source is operatively connectable to the optical sensor to provide the calibration fluid thereto whereby the calibration fluid is measureable by and calibratable to the optical sensor and.
    Type: Application
    Filed: May 30, 2013
    Publication date: December 4, 2014
    Inventor: Anthony Smits
  • Patent number: 8883508
    Abstract: In some embodiments, apparatus and systems, as well as methods, may operate to draw a formation fluid sample into a sampling port included in a down hole tool, to vaporize some part of the fluid sample to substantially fill an injection port with a gas phase, to differentiate gas components in the gas phase to provide differentiated gas components along a concentration gradient, to detect the differentiated gas components, and to determine a fingerprint of the differentiated gas components. Other apparatus, systems, and methods are disclosed.
    Type: Grant
    Filed: July 9, 2013
    Date of Patent: November 11, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Christopher M. Jones, Michael T. Pelletier
  • Publication number: 20140291023
    Abstract: A system includes one or more sensors configured to sense at least one characteristic of fluid entering a well, one or more sensors configured to sense at least one characteristic of fluid exiting a well; and one or more control systems that receive data from at least one of the sensors.
    Type: Application
    Filed: July 28, 2011
    Publication date: October 2, 2014
    Inventors: s Alston Edbury, Jose Victor Guerrero, Duncan Charles MacDonald, Jason B. Norman, James Bryon Rogers, Donald Ray Sitton
  • Publication number: 20140216150
    Abstract: A gas analyzer system that can detect atmospheric air gasses in drilling mud is used to calculate an actual lag time in a well. The calculated lag time and a theoretical lag time may be compared to estimate a caving percentage in an open hole section of the well.
    Type: Application
    Filed: April 14, 2014
    Publication date: August 7, 2014
    Applicant: Weatherford/Lamb, Inc.
    Inventor: Gabriel Frunza
  • Patent number: 8794062
    Abstract: A stepped reflector on the outside of a bottomhole assembly produces two reflections in response to excitation of a transducer. The velocity of the fluid in the borehole is estimated using the two reflections. Alternatively, a change in the gas content of the borehole fluid is estimated from changes in the electrical impedance of a transducer in contact with the borehole fluid.
    Type: Grant
    Filed: March 4, 2009
    Date of Patent: August 5, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: Rocco DiFoggio, Douglas J. Patterson, Eric B. Molz, Volker Krueger
  • Publication number: 20140208840
    Abstract: A device and associated method can detect hydrocarbon gas with at least a control module having a plurality of different gas detection means housed in a mobile enclosure, the control module configured to activate at least two different gas detection means to provide amounts and types of gases present in a fluid.
    Type: Application
    Filed: September 5, 2013
    Publication date: July 31, 2014
    Inventor: Carl Bright
  • Patent number: 8677814
    Abstract: A device (53) comprises an enclosure (63) and means (65, 67) for circulating a drilling mud in the enclosure (63). The inventive device is also provided with means (69) for introducing a gas carrier into the enclosure (63), which comprises a pipe (113) provided with a unit (121) for adjusting the gas carrier flowrate. The device (53) comprises a gas extracting pipe (71) open into the enclosure (63). The gas introducing means (69) comprise a sensor (123) for measuring a pressure at a point located downstream of the adjusting unit (121) and means (117) for controlling the flowrate of the gas carrier injected through said adjusting unit (121) according to the difference between a pressure measured by the sensor (123) and a determined gas extraction pressure.
    Type: Grant
    Filed: April 24, 2006
    Date of Patent: March 25, 2014
    Assignee: Geoservices Equipements
    Inventor: Jean-François Evrard
  • Publication number: 20140041941
    Abstract: A method of assessing hole cleaning effectiveness of drilling comprises a) determining a mass of cuttings removed from a well wherein determining the mass of cuttings removed from a well comprises: i) measuring a total mass of fluid entering a well; ii) measuring a total mass of fluid exiting the well; and iii) determining a difference between the total mass of fluid exiting the well and total mass of fluid entering the well; b) determining a mass of rock excavated in the well; and c) determining a mass of cuttings remaining in the well wherein determining the mass of cuttings remaining in the well comprises: determining a difference between the determined mass of rock excavated in the well and the determined mass of cuttings removed from the well.
    Type: Application
    Filed: August 6, 2013
    Publication date: February 13, 2014
    Applicant: Shell Oil Company
    Inventors: David Alston EDBURY, Jose Victor GUERRERO, Duncan Charles MACDONALD, James Bryon ROGERS, Donald Ray SITTON, Jason NORMAN
  • Publication number: 20130255369
    Abstract: A system for testing a drilling fluid including a vessel having a fluid inlet, a filtrate outlet, a fluid outlet, and at least one permeable media disposed within the vessel. The system further including a base fluid container in fluid communication with the fluid inlet, a test fluid container in fluid communication with the fluid inlet, a filtrate container in fluid communication with the filtrate outlet, and a collection container in fluid communication with the fluid outlet. Additionally, the system includes a data acquisition device configured to receive data from at least one of the vessel, the fluid container, the filtrate container, and the collection container. Also, a method for determining sealing characteristics of a drilling fluid including injecting a test fluid having a fluid loss control material from at least fluid container to a vessel, the vessel having a permeable media having two plates disposed to create a variable gap.
    Type: Application
    Filed: May 24, 2013
    Publication date: October 3, 2013
    Applicant: M-I L.L.C.
    Inventors: Huy Huynh, Robert P. Schlemmer
  • Patent number: 8528394
    Abstract: An assembly for transient and continuous testing of an open portion of a well bore arranged in a lower part of a drill string includes at least two packers fixed outside of the drill string, which are expandable for isolating a reservoir interval. The assembly includes a down-hole pump, sample chamber, sensors, closing valve, sensors and telemetry for measuring and realtime transmission of flow rate, pressure and temperature of fluid flow from the reservoir interval, from the down-hole pump, in the drill string and in an annulus above the packers, a mud driven turbine or electric cable, and a circulation unit. The circulation unit, independent of the circulation rate for mud to the annulus, can feed formation fluid from the reservoir interval into the annulus, so that at any time a well can be kept in over balance and the mud can solve the formation fluid from the reservoir interval.
    Type: Grant
    Filed: February 14, 2008
    Date of Patent: September 10, 2013
    Assignee: Statoil ASA
    Inventor: Kåre Otto Eriksen
  • Publication number: 20130192360
    Abstract: System, methods and devices for analyzing drilling fluids are presented herein. A fluid analysis system for determining at least one characteristic of a drilling fluid is disclosed. The system includes a pump and two reversible fluid ports each configured, when in a first state, to intake drilling fluid into the fluid analysis system and, when in a second state, to expel drilling fluid from the fluid analysis system. A valve fluidly couples the reversible fluid ports to the pump. The valve controls the respective states of the reversible fluid ports. At least one measurement module is fluidly coupled to the pump to receive drilling fluid therefrom. The at least one measurement module is configured to determine at least one characteristic of the drilling fluid. Filters can be fluidly coupled with each of the reversible fluid ports. The filters prevent solids of a predetermined size from entering the fluid analysis system.
    Type: Application
    Filed: January 26, 2012
    Publication date: August 1, 2013
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Dale E. Jamison, Robert J. Murphy, Shawn Broussard, Peter Gonzalez
  • Patent number: 8492152
    Abstract: Apparatus and systems, as well as methods, may operate to draw a formation fluid sample into a sampling port included in a down hole tool or tool body, to vaporize some part of the fluid sample to substantially fill an injection port with a gas phase, to differentiate gas components in the gas phase to provide differentiated gas components along a concentration gradient in a receiving section, to detect the differentiated gas components with a detector, and to determine a fingerprint of the differentiated gas components. A reaction section and a vacuum section may be used for waste consumption and/or absorption.
    Type: Grant
    Filed: January 10, 2013
    Date of Patent: July 23, 2013
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Christopher M. Jones, Michael T. Pelletier
  • Publication number: 20130118249
    Abstract: An apparatus for detecting fluid modulation signals transmitted by an instrument in a wellbore includes a motion sensor coupled to a selected position on an exterior of a conduit coupled between a discharge side of a fluid pump and an inlet to a pipe string suspended in the wellbore. The instrument is coupled to the pipe string. A signal detector is in signal communication with the motion sensor.
    Type: Application
    Filed: June 16, 2011
    Publication date: May 16, 2013
    Inventor: David Conn
  • Patent number: 8392121
    Abstract: A system for monitoring fluids at a drilling location, the system including a viscometer (210) having a heating cup and a pump (211) in clued communication with the heating cup, wherein the pump is configured to provide a flow of fluid from a fluid line inlet to the heating cup. The system also including a cleaning fluid tank (214) including communication with the heating cup, wherein the pump is configured to provide a flow of cleaning fluid from the cleaning fluid tank to the heating cup, and a system controller (217) configured to provide instructions to the pump for controlling the flow of cleaning fluid from the cleaning fluid tanks to the heating cup.
    Type: Grant
    Filed: October 24, 2008
    Date of Patent: March 5, 2013
    Assignees: M-I L.L.C., Schlumberger Norge AS
    Inventors: Mario Zamora, Tore Stock
  • Patent number: 8367413
    Abstract: Apparatus and systems, as well as methods, may operate to draw a formation fluid sample into a sampling port included in a down hole tool or tool body, to vaporize some part of the fluid sample to substantially fill an injection port with a gas phase, to differentiate gas components in the gas phase to provide differentiated gas components along a concentration gradient in a receiving section, to detect the differentiated gas components with a detector, and to determine a fingerprint of the differentiated gas components. The receiving section may comprise a diffusion section. A reaction section and a vacuum section may be used for waste consumption and/or absorption.
    Type: Grant
    Filed: December 16, 2008
    Date of Patent: February 5, 2013
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Christopher M. Jones, Michael T. Pelletier
  • Publication number: 20110130965
    Abstract: An apparatus for testing a drilling fluid includes a vessel having a fluid inlet, a fluid outlet, and a pair of opposed impermeable platens disposed within the vessel. The apparatus further includes a test fluid container in fluid communication with the fluid inlet, and a collection container in fluid communication with the fluid outlet. Additionally, the system includes a data acquisition device configured to receive data from at least one of the vessel, the test fluid container, and the collection container. Also, a method for determining sealing characteristics of a drilling fluid includes injecting a test fluid having a fluid loss control material from a test fluid container to a vessel, the vessel having a first impermeable platen and a second impermeable platen with a gap between the two platens. The methods further includes measuring a fracture tip fluid loss through the gap.
    Type: Application
    Filed: March 12, 2008
    Publication date: June 2, 2011
    Inventors: Kenneth Slater, Robert P. Schlemmer
  • Publication number: 20110088947
    Abstract: The present invention relates to a process and related apparatus for determining the presence and/or quantity of H2S in the drilling debris of a subsoil layer comprising the following working steps: recovering the drilling debris of a layer; degassing the drilling debris from the previous recovery step, and separating a gaseous phase from said debris; clearing the gas released in the step of degassing, and conveying towards an H2S detector; determining the possible presence and/or quantity of H2S in the gaseous phase from the steps of degassing and clearing by means of a suitable means of detection; possible repetition of the previous phases at two layers, at least of the subsoil at different levels of depth in relation to the surface, with consequent determination of a distribution profile of H2S in the subsoil.
    Type: Application
    Filed: October 18, 2010
    Publication date: April 21, 2011
    Inventor: ANTONIO CALLERI
  • Publication number: 20110000713
    Abstract: A method and a system for detecting or measuring influxes of formation water or brine into a drilling fluid being used to drill a borehole through an earth formation are described. The method and system comprising using an electrode based sensor system to determine changes in capacitance and/or conductance of the drilling fluid.
    Type: Application
    Filed: July 2, 2009
    Publication date: January 6, 2011
    Applicant: Schlumberger Technology Corporation
    Inventors: Gerald H. Meeten, Richard H. Mills
  • Patent number: 7814782
    Abstract: Apparatus and method are disclosed for detecting gas in return fluids. A semi-permeable interface is disposed on a tool sub, the semi-permeable interface being in communication with a fluid cell and with a return fluid in an annular region defined by an outside the tool sub and a borehole wall. A sensor responsive to a gas carried by the return fluid is disposed in the fluid cell to sense the gas that enters the fluid cell from the return fluid via the semi-permeable interface.
    Type: Grant
    Filed: August 13, 2007
    Date of Patent: October 19, 2010
    Assignee: Baker Hughes Incorporated
    Inventor: Rocco DiFoggio
  • Patent number: 7748266
    Abstract: A device includes an analyzer (53) and a sampling apparatus (51) for taking a sample of at least one fraction of the gas that has at least one porous membrane element (55). The porous membrane element (55) has a support (63) and a first surface (57) which is in contact with liquid circulating in duct (13) and a second surface (59) which opens out into a duct (61) which is connected to the analyzer (53). The hardness of the first surface (57) is more than 1400 Vickers (kgf/mm2), ranging more particularly between 1400 and 1900 Vickers (kgf/mm2). The device can be used to analyze the gaseous content of oil well boring sludge.
    Type: Grant
    Filed: April 16, 2004
    Date of Patent: July 6, 2010
    Assignee: Geoservices Equipements
    Inventors: Jean-François Evrard, Jérôme Breviere, Jean Christophe Lasserre, José Sanchez Marcano
  • Patent number: 7642474
    Abstract: Device for the quantitative analysis of debris (12, 41) preferably produced during drilling, of the type equipped with means for the progressive collection of the debris, means for the progressive weighing of the debris collected, means for periodical discharging of the same and a structure for support of the device, wherein said means for the collection of the debris comprise a conveyor belt (22, 46) wound in the manner of a track on at least two rollers (23, 24), said means for weighing the debris comprise at least four sensing elements (214, 411) placed so as to take a direct measurement of the weight force exerted on the conveyor belt (22, 46) and said means for discharging debris comprise the unit for actuation of the rollers.
    Type: Grant
    Filed: September 11, 2006
    Date of Patent: January 5, 2010
    Assignee: Geolog S.p.A.
    Inventor: Antonio Calleri
  • Publication number: 20090306897
    Abstract: Methods and apparatus for detecting a coating on a downhole fluid sensor are disclosed. A coating may refer to a solid or liquid film on a sensor interface with the sampled fluid, caused by contaminants. Detecting a coating may be accomplished by determining a sampled fluid type and measuring at least one fluid parameter using one or more downhole fluid sensors. The coating detection further includes determining whether the measured parameters are within ranges corresponding to the determined fluid type. Additionally or alternatively, measured parameter values that remain substantially stable during sampled fluid pumping may also indicate a coated sensor.
    Type: Application
    Filed: June 5, 2008
    Publication date: December 10, 2009
    Applicant: Schlumberger Technology Corporation
    Inventors: Chengli Dong, Peter S. Hegemen
  • Publication number: 20090188665
    Abstract: The present disclosure provides systems utilizing fiber optics for monitoring downhole parameters and the operation and conditions of downhole tools and controlling injection operations based on measurements in an injection well and/or a production well.
    Type: Application
    Filed: February 27, 2009
    Publication date: July 30, 2009
    Applicant: Baker Hughes Incorporated
    Inventors: Paulo Tubel, Brian Bidigare, Michael Johnson, John Harrell, Benn Voll
  • Patent number: 7565835
    Abstract: A method of sampling fluid from a rock formation penetrated by a borehole includes positioning a downhole tool having a flow line in the borehole, establishing an inlet port through which fluid passes from a first point in the formation into the flow line, establishing an outlet port through which fluid passes from the flow line into a second point in the formation, and passing fluid between the formation and the flow line through the inlet and outlet ports.
    Type: Grant
    Filed: November 15, 2005
    Date of Patent: July 28, 2009
    Assignee: Schlumberger Technology Corporation
    Inventors: Simon H. Bittleston, Jonathan W. Brown, Julian J. Pop, Ashley C. Kishino, Christopher S. Del Campo
  • Publication number: 20090173150
    Abstract: A stepped reflector on the outside of a bottomhole assembly produces two reflections in response to excitation of a transducer. The velocity of the fluid in the borehole is estimated using the two reflections. Alternatively, a change in the gas content of the borehole fluid is estimated from changes in the electrical impedance of a transducer in contact with the borehole fluid.
    Type: Application
    Filed: March 4, 2009
    Publication date: July 9, 2009
    Applicant: Baker Hughes Incorporated
    Inventors: Rocco DiFoggio, Douglas J. Patterson, Eric B. Molz, Volker Krueger
  • Patent number: 7556106
    Abstract: A drilling fluid monitor system includes a pump fluidically connected to the drilling fluid to withdraw fluid from that system and move it to a scale that includes two coils through which the withdrawn fluid is circulated. The coils are positioned on a scale so the withdrawn fluid can be accurately weighed and returned to the drilling system via the pump.
    Type: Grant
    Filed: January 22, 2007
    Date of Patent: July 7, 2009
    Inventors: Lee O. Meinen, Katherine Meinen
  • Publication number: 20090101339
    Abstract: A method of evaluating a fluid from a subterranean formation drawn into a downhole tool positioned in a wellbore penetrating the subterranean formation is provided. The method involves drawing fluid from a formation into an evaluation flowline, drawing fluid from a formation into a cleanup flowline, measuring a property of the fluid in the evaluation flowline and detecting stabilization of the property of the fluid in the evaluation flowline. Fluid properties in a combined flowline may be generated from the evaluation and cleanup flowlines. The fluid properties of the combined flowline may be used to project future evaluation flowline fluid properties. Contamination levels for a given fluid property of a given flowline may also be determined.
    Type: Application
    Filed: December 19, 2008
    Publication date: April 23, 2009
    Inventors: Alexander F. Zazovsky, Christopher S. Del Campo, Ricardo Vasques
  • Publication number: 20090095529
    Abstract: An apparatus for determining the nature of the formation at the bottom of a wellbore being drilled with a tubular drill string through which drilling fluid is pumped to return the drilling fluid to the surface via the wellbore, the apparatus comprising a tool body for installation in a drill string with a bore extending there through and an ultraviolet fluorescence detector in a passageway in the tool body, the tool body being configured to receive drilling fluid from inside the drill string and to receive drilling fluid from outside the drill string, wherein the drilling fluid can be directed past the detector so as to enable measurements to be made.
    Type: Application
    Filed: September 28, 2007
    Publication date: April 16, 2009
    Inventors: Fadhel Rezgui, Stephane Vannuffelen
  • Patent number: 7441609
    Abstract: The invention provides a method of enhancing the recovery of shale-containing cuttings during the drilling of a borehole in a shale-containing subterranean formation which comprises adding to the drilling fluid circulating in the borehole a finely ground, very sparingly soluble, anhydrous, alkali metal silicate glassy material to provide the drilling fluid with a concentration of soluble silica in the range from about 0.1% to about 1.0% by weight of the aqueous phase of the drilling fluid. Preferably the drilling fluid has a pH in the range from about 8.0 to about 11.0, most preferably about 8.5 to less than 11.0. The preferred alkali metal is potassium.
    Type: Grant
    Filed: October 31, 2005
    Date of Patent: October 28, 2008
    Assignee: Newpark Drilling Fluids,LLC
    Inventor: Harry L. Dearing, Jr.
  • Patent number: 7438128
    Abstract: A method for identifying annular gas sources in a wellbore is disclosed. In one embodiment, the method comprises providing a set of parameters, wherein the set of parameters corresponds to depths in the wellbore. In addition, the method comprises analyzing annular gas in the wellbore to provide isotopic data of the annular gas. The method further comprises correlating the isotopic data to the set of parameters to identify the annular gas source.
    Type: Grant
    Filed: May 4, 2005
    Date of Patent: October 21, 2008
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Richard J. Drozd, Louis W. Elrod, Patrick Jacobs
  • Publication number: 20080250853
    Abstract: Device for the quantitative analysis of debris (12, 41) preferably produced during drilling, of the type equipped with means for the progressive collection of the debris, means for the progressive weighing of the debris collected, means for periodical discharging of the same and a structure for support of the device, wherein said means for the collection of the debris comprise a conveyor belt (22, 46) wound in the manner of a track on at least two rollers (23, 24), said means for weighing the debris comprise at least four sensing elements (214, 411) placed so as to take a direct measurement of the weight force exerted on the conveyor belt (22, 46) and said means for discharging debris comprise the unit for actuation of the rollers.
    Type: Application
    Filed: September 11, 2006
    Publication date: October 16, 2008
    Applicant: Geolog S.p.A.
    Inventor: Antonio Calleri
  • Publication number: 20080190190
    Abstract: A method and computer program product of either preventing or minimizing pore pressure increase near the wellbore wall within argillaceous formations through which a borehole has been drilled. By interpreting relevant drilling experience data, the type, extent and time-dependency of wellbore instability mechanisms are determined. The impact of drilling mud designs on the time-dependent wellbore instability and hole enlargement is determined by back-analyzing observed drilling events. At least one field-based criterion relationship between net mud weight reduction percentage ratio and hole enlargement is determined. A maximum allowable percentage ratio(s) of net mud weight reduction and either breakout mud weight or mud weight used for the adopted maximum hole enlargement that the wellbore may experience during drilling is determined. Drilling mud salinity value and salt type to satisfy maximum allowable percentage ratio(s) is then determined.
    Type: Application
    Filed: February 5, 2008
    Publication date: August 14, 2008
    Inventors: Chee Phuat Tan, Magdalena Povstyanova
  • Patent number: 7395691
    Abstract: A process to analyze fluid entrained in well boreholes. The process includes gathering trap gas samples from return of drilling mud at multiple depths. The process also includes the steps of subjecting the samples to mass spectrometry in order to determine mass to charge ratios data of hydrocarbons and analyzing the mass to charge ratios data in relation to depth or time. Samples from at least one other source may also be gathered and analyzed chosen from the group consisting of mud fluid analysis, cuttings backgrounds analysis and cuttings crush analysis.
    Type: Grant
    Filed: March 20, 2007
    Date of Patent: July 8, 2008
    Assignee: Fluid Inclusion Technologies, Inc.
    Inventors: Steven Michael Sterner, Donald Lewis Hall, Wells Shentwu
  • Publication number: 20080123470
    Abstract: A system for controlling gas in a subsea drilling operation is disclosed in one embodiment. The system includes a subsea blow-out preventer, riser coupled to the blow-out preventer, a gas sensor, a controller, and a signal pathway. The gas sensor is configured for placement below the riser and configured to contact wellbore fluids during normal drilling operation. The controller configured to automatically cause manipulation the blow-out preventer based upon information from the gas sensor. The signal pathway couples the gas sensor with the controller.
    Type: Application
    Filed: November 29, 2006
    Publication date: May 29, 2008
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Iain Cooper, Walter Aldred
  • Publication number: 20080115574
    Abstract: A system for testing an underground formation penetrated by a well includes a downhole tool that is configured to be coupled to a work string and that includes an outer surface, a connection for coupling a stabilizing sub to the downhole tool, and at least one portion configured to receive a frame. The system further includes a plurality of stabilizing subs that are configured to be coupled to the downhole tool, a plurality of frames configured to be detachably mounted on the at least one portion of the downhole tool, and at least one measuring device configured to be secured in at least one of the plurality of frames.
    Type: Application
    Filed: March 30, 2007
    Publication date: May 22, 2008
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventor: DALE MEEK
  • Publication number: 20080110253
    Abstract: A method and apparatus for measuring a substance in formations surrounding an earth borehole being drilled with a drill bit at the end of a drill string, using drilling fluid that flows downward through the drill string, exits through the drill bit entrained with drilled earth formation cuttings, and returns toward the earth's surface in the annulus between the drill string and the borehole, the method including the following steps: waiting for any of the substance that is dissolved in the drilling fluid to be substantially in equilibrium with any of the substance in the earth formation cuttings; and then measuring, downhole, the substance dissolved in the drilling fluid.
    Type: Application
    Filed: November 10, 2006
    Publication date: May 15, 2008
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Kenneth E. Stephenson, Jeffrey A. Tarvin
  • Publication number: 20080047337
    Abstract: An acoustic transducer on a downhole tool sends an acoustic wave through a sensor plate in contact with drilling fluid. Vibrations of the sensor plate are indicative of the impedance of the borehole plate that may be associated with gas influx. A processor analyzes the vibrations and uses an estimated Q of the vibrations to determine gas influx. It is emphasized that 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. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).
    Type: Application
    Filed: August 20, 2007
    Publication date: February 28, 2008
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Roland E. Chemali, Volker Krueger, Rocco DiFoggio