Patents by Inventor Peter Gerhard Tilke
Peter Gerhard Tilke has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9388682Abstract: A method, apparatus and program product utilize infeasible regions projected onto sets of substantially parallel feasibility planes extending through a subsurface region to perform anti-collision and other types of hazard avoidance analysis. Hazards, e.g., existing well trajectories, that intersect the feasibility planes, as well as any uncertainties associated therewith, may be represented as infeasible regions in the feasibility planes, such that an analysis of the feasibility of a proposed well trajectory may be determined in a computationally efficient manner through a comparison of the locations, within one or more feasibility planes, of the proposed well trajectory and any infeasible regions defined in such feasibility planes.Type: GrantFiled: January 23, 2014Date of Patent: July 12, 2016Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventor: Peter Gerhard Tilke
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Publication number: 20150339411Abstract: A method, apparatus, and program product automatically generate a surface network for an oilfield production system, e.g., as a new surface network or as an addition to an existing surface network. Candidate surface networks are generated from control vectors proposed by an optimization engine to optimize based upon an objective function that is based at least upon one or more geographical cost functions and one or more boundary conditions.Type: ApplicationFiled: May 22, 2014Publication date: November 26, 2015Applicant: Schlumberger Technology CorporationInventors: Scott Trevor Raphael, Benoit Couet, William J. Bailey, Kashif Rashid, Peter Gerhard Tilke
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Publication number: 20140214387Abstract: A method, apparatus and program product utilize a constrained optimization framework to generate a well placement plan based on a reservoir model. Candidate well placement plans are generated from control vectors proposed by an optimization engine to optimize based upon an objective function that generally involves an access to a reservoir simulator. Inexpensive constraints that are not based on computation of the objective function are evaluated prior to accessing the reservoir simulator to avoid unnecessary accesses to the reservoir simulator for candidate well placement plans determined to be infeasible in view of the inexpensive constraints. For candidate well placement plans that are determined to be feasible based upon the inexpensive constraints, the objective function may be calculated and additional expensive constraints may thereafter be evaluated to further determine the feasibility of candidate well placement plans.Type: ApplicationFiled: January 23, 2014Publication date: July 31, 2014Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventor: PETER GERHARD TILKE
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Publication number: 20140209300Abstract: A method, apparatus and program product utilize infeasible regions projected onto sets of substantially parallel feasibility planes extending through a subsurface region to perform anti-collision and other types of hazard avoidance analysis. Hazards, e.g., existing well trajectories, that intersect the feasibility planes, as well as any uncertainties associated therewith, may be represented as infeasible regions in the feasibility planes, such that an analysis of the feasibility of a proposed well trajectory may be determined in a computationally efficient manner through a comparison of the locations, within one or more feasibility planes, of the proposed well trajectory and any infeasible regions defined in such feasibility planes.Type: ApplicationFiled: January 23, 2014Publication date: July 31, 2014Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventor: PETER GERHARD TILKE
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Patent number: 8793111Abstract: A system for automatically optimizing a Field Development Plan (FDP) for an oil or gas field uses a fast analytic reservoir simulator to dynamically model oil or gas production from the entire reservoir over time in an accurate and rapid manner. An objective function defining a Figure of Merit (FoM) for candidate FDPs is maximized, using an optimization algorithm, to determine an optimized FDP in light of physical, engineering, operational, legal and engineering constraints. The objective function for the Figure of Merit, e.g., net present value (NPV) or total production for a given period of time, relies on a production forecast from the fast analytic reservoir simulator for the entire FDP.Type: GrantFiled: January 20, 2009Date of Patent: July 29, 2014Assignee: Schlumberger Technology CorporationInventors: Peter Gerhard Tilke, Vijaya Halabe, Raj Banerjee, Tarek M. Habashy, Michael Thambynayagam, Jeffrey Spath, Andrew J. Carnegie, Benoit Couet, William J. Bailey, Michael David Prange
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Patent number: 8527248Abstract: A system and method for performing an adaptive drilling operation is provided. The method involves obtaining data prior to drilling, constructing a base model with a base model unit from data obtained prior to drilling, constructing an overburden posterior model with an overburden model unit using the base model and data obtained from overburden drilling, constructing a reservoir posterior model with a reservoir model unit using the overburden posterior model and the data obtained from reservoir drilling and updating drilling operation based on the models.Type: GrantFiled: January 25, 2010Date of Patent: September 3, 2013Assignee: WesternGeco L.L.C.Inventors: R. K. Michael Thambynayagam, Cengiz Esmersoy, Peter Gerhard Tilke, Maurice Nessim, Annabelle Kania, Sudhendu Kashikar, Gregory P. Grove, Nader C. Dutta, Raj Banerjee, Jeffrey B. Spath, Christopher Hopkins
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Patent number: 8005658Abstract: A hybrid evolutionary algorithm (“HEA”) technique is described for automatically calculating well and drainage locations in a field. The technique includes planning a set of wells on a static reservoir model using an automated well planner tool that designs realistic wells that satisfy drilling and construction constraints. A subset of these locations is then selected based on dynamic flow simulation using a cost function that maximizes recovery or economic benefit. In particular, a large population of candidate targets, drain holes and trajectories is initially created using fast calculation analysis tools of cost and value, and as the workflow proceeds, the population size is reduced in each successive operation, thereby facilitating use of increasingly sophisticated calculation analysis tools for economic valuation of the reservoir while reducing overall time required to obtain the result. In the final operation, only a small number of full reservoir simulations are required for the most promising FDPs.Type: GrantFiled: May 31, 2007Date of Patent: August 23, 2011Assignee: Schlumberger Technology CorporationInventors: Peter Gerhard Tilke, William J. Bailey, Benoit Couet, Michael Prange, Martin Crick
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Publication number: 20100185427Abstract: A system for automatically optimizing a Field Development Plan (FDP) for an oil or gas field uses a fast analytic reservoir simulator to dynamically model oil or gas production from the entire reservoir over time in an accurate and rapid manner. An objective function defining a Figure of Merit (FoM) for candidate FDPs is maximized, using an optimization algorithm, to determine an optimized FDP in light of physical, engineering, operational, legal and engineering constraints. The objective function for the Figure of Merit, e.g., net present value (NPV) or total production for a given period of time, relies on a production forecast from the fast analytic reservoir simulator for the entire FDP. The position, orientation and dimensions of analytical model elements for the subsurface oil or gas field, as well as the physical properties associated with these elements, correlate to connected flow volume data from a Shared Earth Model (SEM). Uncertainty in the SEM is considered via stochastic sampling.Type: ApplicationFiled: January 20, 2009Publication date: July 22, 2010Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Peter Gerhard Tilke, Vijaya Halabe, Raj Banerjee, Tarek M. Habashy, Michael Thambynayagam, Jeffrey Spath, Andrew J. Carnegie, Benoit Couet, William J. Bailey, Michael David Prange
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Publication number: 20100155142Abstract: A system and method for performing an adaptive drilling operation is provided. The method involves obtaining data prior to drilling, constructing a base model with a base model unit from data obtained prior to drilling, constructing an overburden posterior model with an overburden model unit using the base model and data obtained from overburden drilling, constructing a reservoir posterior model with a reservoir model unit using the overburden posterior model and the data obtained from reservoir drilling and updating drilling operation based on the models.Type: ApplicationFiled: January 25, 2010Publication date: June 24, 2010Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: R.K. MICHAEL THAMBYNAYAGAM, Esmersoy Cengiz, Peter Gerhard Tilke, Maurice Nessim, Annabelle Kania, Sudhendu Kashikar, Gregory P. Grove, Nader C. Dutta, Raj Banerjee, Jeffrey B. Spath, Christopher Hopkins
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Patent number: 7684929Abstract: A novel method is presented to automatically design a multi-well development plan given a set of previously interpreted subsurface targets. This method identifies the optimal plan by minimizing the total cost as a function of existing and required new platforms, the number of wells, and the drilling cost of each of the wells. The cost of each well is a function of the well path and the overall complexity of the well.Type: GrantFiled: November 3, 2008Date of Patent: March 23, 2010Assignee: Schlumberger Technology CorporationInventors: Michael David Prange, Peter Gerhard Tilke, Clinton Dane Chapman, Darren Lee Acklestad
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Publication number: 20090056935Abstract: A novel method is presented to automatically design a multi-well development plan given a set of previously interpreted subsurface targets. This method identifies the optimal plan by minimizing the total cost as a function of existing and required new platforms, the number of wells, and the drilling cost of each of the wells. The cost of each well is a function of the well path and the overall complexity of the well.Type: ApplicationFiled: November 3, 2008Publication date: March 5, 2009Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Michael David Prange, Peter Gerhard Tilke, Clinton Dane Chapman, Darren Lee Aklestad
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Publication number: 20080300793Abstract: A hybrid evolutionary algorithm (“HEA”) technique is described for automatically calculating well and drainage locations in a field. The technique includes planning a set of wells on a static reservoir model using an automated well planner tool that designs realistic wells that satisfy drilling and construction constraints. A subset of these locations is then selected based on dynamic flow simulation using a cost function that maximizes recovery or economic benefit. In particular, a large population of candidate targets, drain holes and trajectories is initially created using fast calculation analysis tools of cost and value, and as the workflow proceeds, the population size is reduced in each successive operation, thereby facilitating use of increasingly sophisticated calculation analysis tools for economic valuation of the reservoir while reducing overall time required to obtain the result. In the final operation, only a small number of full reservoir simulations are required for the most promising FDPs.Type: ApplicationFiled: May 31, 2007Publication date: December 4, 2008Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Peter Gerhard Tilke, William J. Bailey, Benoit Couet, Michael Prange, Martin Crick
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Patent number: 7460957Abstract: A novel method is presented to automatically design a multi-well development plan given a set of previously interpreted subsurface targets. This method identifies the optimal plan by minimizing the total cost as a function of existing and required new platforms, the number of wells, and the drilling cost of each of the wells. The cost of each well is a function of the well path and the overall complexity of the well.Type: GrantFiled: December 14, 2005Date of Patent: December 2, 2008Assignee: Schlumberger Technology CorporationInventors: Michael David Prange, Peter Gerhard Tilke, Clinton Dane Chapman, Darren Lee Aklestad
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Patent number: 7133779Abstract: A method of characterizing a borehole traversing an earth formation including (a) obtaining an array of data from a formation characterization tool, wherein the data describes a section of the borehole; (b) computing at least one spatial characteristic describing the relative position of pairs of data; (c) assigning said pairs of data to bins based on the spatial characteristic, wherein the size of the bins are selected based on the tool; (d) transforming the data to petrophysical properties of the borehole; (e) calculating the variance of each bin; (f) developing a model of the variances; (g) determining at least one geostatistical parameter using the model; and (h) upscaling the geostatistical parameters to characterize a region of said earth formation. The method may further include generating a heterogeneity index log using the geostatistical model parameters. The method may be implemented using a computer program product for processing and interpreting borehole data.Type: GrantFiled: May 4, 2004Date of Patent: November 7, 2006Assignee: Schlumberger Technology CorporationInventors: Peter Gerhard Tilke, David Allen
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Patent number: 7096092Abstract: A method of managing oil fields include installing oil field sensors, coupling them to a local CPU having memory, programming the CPU for data collection and data analysis, and coupling local oil field CPUs to a web server. Human experts are granted access to oil field data in real time via the Internet. The local CPUs provide different levels of data to the web server. The web server provides the option to view raw data, partially analyzed data, or fully analyzed data. The local CPUs are programmed with parameters for analyzing the data and automatically determining the presence of anomalies. Upon detecting the occurrence of an anomaly, the local CPUs are programmed to notify one or more human experts by email, pager, telephone, etc. If no human expert responds to the notification within a programmed period of time, the local CPU automatically takes a programmed corrective action.Type: GrantFiled: November 3, 2000Date of Patent: August 22, 2006Assignee: Schlumberger Technology CorporationInventors: Terizhandur S. Ramakrishnan, Raj Kumar Michael Thambynayagam, Peter Gerhard Tilke, Bhavani Raghuraman
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Publication number: 20040225441Abstract: A method of characterizing a borehole traversing an earth formation including (a) obtaining an array of data from a formation characterization tool, wherein the data describes a section of the borehole; (b) computing at least one spatial characteristic describing the relative position of pairs of data; (c) assigning said pairs of data to bins based on the spatial characteristic, wherein the size of the bins are selected based on the tool; (d) transforming the data to petrophysical properties of the borehole; (e) calculating the variance of each bin; (f) developing a model of the variances; (g) determining at least one geostatistical parameter using the model; and (h) upscaling the geostatistical parameters to characterize a region of said earth formation. The method may further include generating a heterogeneity index log using the geostatistical model parameters. The method may be implemented using a computer program product for processing and interpreting borehole data.Type: ApplicationFiled: May 4, 2004Publication date: November 11, 2004Applicant: Schlumberger Technology Corporation, a Texas CorporationInventors: Peter Gerhard Tilke, David Allen