Patents Assigned to Schlumberger Technology Corp.
  • Publication number: 20130312477
    Abstract: An apparatus and method is provided for protecting control lines used with tool strings in a downhole environment. A control line protector assembly comprises a plurality of components formed into a unitary piece which includes a guard section having a first end section and a second end section, a slot on each of the first end section and the second end section, and a securing mechanism for coupling the guard section having the first end section and the second end section to the coupling. A control line protector assembly is formed using a metal stamping process.
    Type: Application
    Filed: June 13, 2013
    Publication date: November 28, 2013
    Applicant: SCHLUMBERGER TECHNOLOGY CORP
    Inventor: IAIN BAXTER
  • Patent number: 8061440
    Abstract: A computer usable medium including computer usable program code for determining an oilfield parameter for a drilling operation. The computer usable program code when executed causing a processor to identify first decision factors and second decision factors about the drilling operation, where each of the first decision factors is contained within first nodes, and where each of the second decision factors is contained within second nodes, where the first and second nodes contain common nodes. The computer usable program code further causing the processor to associate the first nodes to create a first belief network and associate the second nodes to create a second belief network, associate the common nodes of the first belief network with the common nodes of the second belief network to form a multinet belief network, and generate at least one oilfield parameter from the multinet belief network.
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: November 22, 2011
    Assignee: Schlumberger Technology Corp
    Inventors: Clinton D. Chapman, Charles Chen
  • Patent number: 8014987
    Abstract: A method, system and computer program product for performing a drilling operation for an oil field, the oil field having a subterranean formation with geological structures and reservoirs therein. The method involves creating a finite-difference model to simulate behavior of a drilling assembly used to drill a wellbore in the drilling operation, performing a simulation of the drilling operation using the finite-difference model, analyzing a result of the simulation, and selectively modifying the drilling operation based on the analysis.
    Type: Grant
    Filed: April 2, 2008
    Date of Patent: September 6, 2011
    Assignee: Schlumberger Technology Corp.
    Inventors: Jahir Pabon, Nathan Wicks, Yong Chang, Clinton Chapman, Vivek Singh
  • Patent number: 7996199
    Abstract: A method for performing an oilfield operation at a wellsite having a drilling rig configured to advance a drilling tool into a subsurface formation. The method includes generating a borehole temperature model for an area of interest using water depth information and a vertical stress model, generating a formation temperature model using the borehole temperature model, generating a mud-weight pressure model using the formation temperature model and pressure coefficients, generating a formation pore pressure model using the mud-weight pressure model, and adjusting the oilfield operation based on the formation pore pressure model.
    Type: Grant
    Filed: August 6, 2007
    Date of Patent: August 9, 2011
    Assignee: Schlumberger Technology Corp
    Inventors: Colin Michael Sayers, Lennert David den Boer
  • Patent number: 7966166
    Abstract: A method is disclosed for modeling a first reservoir while drilling a wellbore into a corresponding second reservoir, the first reservoir having a plurality of stations, comprising: determining a plurality of values of net present value corresponding, respectively, to the plurality of stations of the first reservoir; and drilling the wellbore into the corresponding second reservoir in accordance with the plurality of values of net present value.
    Type: Grant
    Filed: April 18, 2008
    Date of Patent: June 21, 2011
    Assignee: Schlumberger Technology Corp.
    Inventors: R. K. Michael Thambynayagam, Andrew Carnegie, Raj Banerjee, Gregory P. Grove, Luca Ortenzi, Roger Griffiths, Joseph A. Ayoub, Jeff Spath
  • Patent number: 7953584
    Abstract: A method is disclosed for optimal lift gas allocation, comprising: optimally allocating lift gas under a total lift gas constraint or a total produced gas constraint, the allocating step including distributing lift gas among all gas lifted wells in a network so as to maximize a liquid or oil rate at a sink.
    Type: Grant
    Filed: February 27, 2007
    Date of Patent: May 31, 2011
    Assignee: Schlumberger Technology Corp
    Inventor: Kashif Rashid
  • Patent number: 7953587
    Abstract: A method is disclosed for generating a wellsite design, comprising: designing a workflow for an Earth Model; building an initial Earth Model based on the workflow adapted for modeling drilling and completions operations in a hydrocarbon reservoir; calibrating the initial Earth Model thereby generating a calibrated Earth Model; and generating the wellsite design using the calibrated Earth Model.
    Type: Grant
    Filed: June 14, 2007
    Date of Patent: May 31, 2011
    Assignee: Schlumberger Technology Corp
    Inventors: Tom Bratton, Randy Koepsell, Tom Olsen, Adam Donald
  • Patent number: 7953585
    Abstract: A method of managing a fluid or gas reservoir is disclosed which assimilates diverse data having different acquisition time scales and spatial scales of coverage for iteratively producing a reservoir development plan that is used for optimizing an overall performance of a reservoir.
    Type: Grant
    Filed: March 5, 2007
    Date of Patent: May 31, 2011
    Assignee: Schlumberger Technology Corp
    Inventors: Omer M. Gurpinar, David J. Rossi, Vidya B. Verma, Philip W. Pantella
  • Patent number: 7933750
    Abstract: A method is disclosed, which is practiced by a reservoir simulator, for simulating a reservoir and generating a set of simulation results, the simulation results including a framework, the framework further including a plurality of grid cells, comprising: generating one or more static and dynamic regions within the grid cells of the framework of the simulation results, the static and dynamic regions each having region values, wherein the region values of the static regions cannot be allowed to change dynamically, and wherein the region values of the dynamic regions can be allowed to change dynamically.
    Type: Grant
    Filed: April 2, 2008
    Date of Patent: April 26, 2011
    Assignee: Schlumberger Technology Corp
    Inventors: Alison Morton, Andrew Priestley
  • Patent number: 7924001
    Abstract: A method for determining oil viscosity and continuous gas-oil-ratio (GOR) from nuclear magnetic resonance logs (NMR). The method includes obtaining a set of NMR data of a portion of the subterranean formation from inside the wellbore without acquiring formation fluid sample; isolating a quantitative reservoir fluid information associated with oil from oil based mud (OBM) using radial profiling of the set of NMR data, wherein the OBM is used for extracting fluid from the underground reservoir; determining GOR related information associated with the portion of the subterranean formation from the quantitative reservoir fluid information associated with oil, wherein the GOR related information is determined based on a predetermined model; and performing operations for the oilfield based on the GOR related information.
    Type: Grant
    Filed: April 14, 2009
    Date of Patent: April 12, 2011
    Assignee: Schlumberger Technology Corp.
    Inventor: Chanh Cao Minh
  • Patent number: 7894991
    Abstract: A method, system, and computer program product for performing oilfield surveillance operations. The oilfield has a subterranean formation with geological structures and reservoirs therein. The oilfield is divided into a plurality of patterns, with each pattern comprising a plurality of wells. Historical production/injection data is obtained for the plurality of wells. Two independent statistical treatments are performed to achieve a common objective of production optimization. In the first process, wells and/or patterns are characterized based on Heterogeneity Index results and personalities with the ultimate goal of field production optimization. In the second process, the history of the flood is divided into even time increments. At least two domains for each of the plurality of wells are determined. Each of the at least two domains are centered around each of the plurality wells. A first domain of the at least two domains has a first orientation.
    Type: Grant
    Filed: January 29, 2009
    Date of Patent: February 22, 2011
    Assignee: Schlumberger Technology Corp.
    Inventors: Yanil Del Castillo, Joo Sitt Tan, Richard Reese
  • Patent number: 7895241
    Abstract: The invention relates to a method for performing operations of an oilfield having at least one wellsite, a surface network, and a process facility, each wellsite having a wellbore penetrating a subterranean formation for extracting fluid from an underground reservoir therein.
    Type: Grant
    Filed: October 16, 2007
    Date of Patent: February 22, 2011
    Assignee: Schlumberger Technology Corp.
    Inventors: Eric Jonathan Schoen, Joseph A. Wald, Richard George Esau, Truls Arnegaard, Stephen Whitley, Herman Veldhuizen, Hallgrim Ludvigsen, Andrew John Round
  • Patent number: 7869954
    Abstract: Methods and apparatus that use microseismic event data, stress data, seismic data, and rock properties to predict the hydrocarbon production success of a well location are disclosed. An example method generates a hydrocarbon production function based on information associated with at least a first well location, obtains information associated with a second well location, and calculates the hydrocarbon production function using the information associated with the second well location to predict the hydrocarbon production of the second well location.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: January 11, 2011
    Assignee: Schlumberger Technology Corp
    Inventors: Lennert D. den Boer, Colin M. Sayers
  • Patent number: 7861800
    Abstract: A method is described for determining an oilfield parameter for a drilling operation in an oilfield, the oilfield having a well site with a drilling tool advanced into a subterranean formation with geological structures and reservoirs therein. A first set of decision factors and a second set of decision factors about the drilling operation are identified. Each of the first set of decision factors is contained within a first set of nodes, and each of the second set of decision factors is contained within a second set of nodes. Both the first set of nodes and the second set of nodes contain a set of common nodes, which are common to both the first and second sets. The first set of nodes is associated to create a first belief network and the second set of nodes is associated to create a second belief network. Then, the set of common nodes of the first belief network is associated with the set of common nodes of the second belief network to form a multinet belief network.
    Type: Grant
    Filed: October 8, 2008
    Date of Patent: January 4, 2011
    Assignee: Schlumberger Technology Corp
    Inventors: Clinton D. Chapman, Charles Chen
  • Publication number: 20100082375
    Abstract: A technique facilitates asset integrity management of underground storage assets, such as underground carbon dioxide storage sites. The technique comprises establishing a paradigm for asset integrity management comprising element fields related to elements such as asset life cycle, implementation procedures, technologies, tools, and methods to obtain and evaluate data, and control/mitigation measures. Data related to the element fields is processed based on relationships established by the paradigm. Based on the analysis, information related to the integrity of the underground storage asset is output lot-use in managing the underground storage asset.
    Type: Application
    Filed: September 23, 2008
    Publication date: April 1, 2010
    Applicant: SCHLUMBERGER TECHNOLOGY CORP.
    Inventor: CLAUDIA VIVALDA
  • Publication number: 20090327186
    Abstract: A technique facilitates selection of underground substance storage sites. Criteria are established to enable evaluation of a plurality of underground storage sites for storing a given substance. Optimal goals or targets are determined, and the potentially numerous and varied criteria are assessed against those optimal goals. A predetermined rational method is used to process and evaluate the criteria in a manner that ultimately enables selection of a desirable storage site.
    Type: Application
    Filed: June 27, 2008
    Publication date: December 31, 2009
    Applicant: SCHLUMBERGER TECHNOLOGY CORP.
    Inventors: CLAUDIA VIVALDA, THOMAS BERARD, STEPHANIE SAUNIER
  • Publication number: 20090277625
    Abstract: Described herein are compositions for reducing or preventing the degradation of equipment and articles exposed to hydrogen sulfide present in high concentrations in subterranean environments (e.g., oil and gas wells). The compositions are composed of a thermoplastic resin, a thermosetting resin, or a combination thereof, and at least one compound that interacts with hydrogen sulfide from the subterranean environment. In certain aspects, the compositions are coated on the article of interest. In other aspects, the composition is used to manufacture the article and, thus, is integrated throughout the article.
    Type: Application
    Filed: February 24, 2009
    Publication date: November 12, 2009
    Applicant: SCHLUMBERGER TECHNOLOGY CORP.
    Inventors: YUN BAI, TIMOTHY G.J. JONES, BERNADETTE CRASTER, AHMED HAMMAMI, TODD YAKIMOSKI
  • Publication number: 20090266175
    Abstract: An apparatus (and corresponding method) for characterizing the fluid properties of a two phase fluid includes a restriction element (e.g., orifice plate or nozzle) along the flow path of the two phase fluid. At least one temperature sensor measures temperature of the two phase fluid flowing through the restriction element. A pressure sensor measures the pressure downstream of the restriction element. Time-of-flight measurements of pulses passing through the two phase fluid are made. The speed of sound within the two phase fluid is calculated from the time-of-flight measurements. At least one fluid property (e.g., a vapor phase fraction) of the two phase fluid is calculated from the measured pressure, the measured temperature, and the calculated speed of sound.
    Type: Application
    Filed: April 25, 2008
    Publication date: October 29, 2009
    Applicant: SCHLUMBERGER TECHNOLOGY CORP.
    Inventors: FRANCK BRUNO JEAN MONMONT, HERVE OHMER, GARY MARTIN ODDIE, ALLAN PEATS
  • Publication number: 20090271129
    Abstract: A method and corresponding system is provided for determining fluid properties of a two phase fluid flowing through various portions of a wellbore. Specifically, the method and corresponding system determines fluid properties (e.g. enthalpy flux) of the two phase fluid flowing upstream of the injector portion of the wellbore as well as fluid properties (e.g., mass flow rate and enthalpy flux) of the two phase fluid at various measurement locations along the injector.
    Type: Application
    Filed: April 25, 2008
    Publication date: October 29, 2009
    Applicant: SCHLUMBERGER TECHNOLOGY CORP.
    Inventors: FRANCK BRUNO JEAN MONMONT, HERVE OHMER, GARY MARTIN ODDIE, ALLAN PEATS
  • Publication number: 20090248310
    Abstract: A method and system for characterizing asphaltene gradients of a reservoir of interest and analyzing properties of the reservoir of interest based upon such asphaltene gradients. The analysis employs a correlation that relates insoluble asphaltene concentration to spectrophotometry measurement data measured at depth.
    Type: Application
    Filed: January 12, 2009
    Publication date: October 1, 2009
    Applicant: SCHLUMBERGER TECHNOLOGY CORP.
    Inventors: YOUXIANG (JULIAN) ZUO, OLIVER C. MULLINS, JINGLIN GAO, ABDEL M. KHARRAT, KENTARO INDO, MICHAEL O'KEEFE, SORAYA S. BETANCOURT, CHENGLI DONG