公开(公告)号：US09733391B2

公开(公告)日：2017-08-15

申请号：US14185828

申请日：2014-02-20

Applicant: Pavel Dimitrov ,  Matthias Imhof ,  Martin Terrell ,  John S. Lien

Inventor： Pavel Dimitrov ,  Matthias Imhof ,  Martin Terrell ,  John S. Lien

IPC: G06G7/48 ,  G01V99/00 ,  G01V1/28 ,  G06F17/50

CPC classification number: G01V99/005 ,  G01V1/282 ,  G01V2210/641 ,  G01V2210/66 ,  G06F17/50

Abstract: Method and system is described for modeling one or more geophysical properties of a subsurface volume. In one embodiment, a method of modeling the subsurface comprises obtaining one or more subsurface volume and obtaining an interpretation of the subsurface volume. One or more flexible geologic concepts are defined and applied to the interpretation of the subsurface volume. The one or more geologic concepts comprise one or more flexible geologic concepts. A modified interpretation of the subsurface volume is obtained based upon the applied geologic concepts.

公开(公告)号：US20170219728A1

公开(公告)日：2017-08-03

申请号：US15417761

申请日：2017-01-27

Applicant: CGG SERVICES SAS

Inventor： Eric NOLTE ,  Reza SABERI

IPC: G01V1/30 ,  G01V1/28

CPC classification number: G01V1/306 ,  G01V1/282 ,  G01V1/284 ,  G01V99/005 ,  G01V2210/6242 ,  G01V2210/6244

Abstract: Predicting elastic parameters of a subsurface includes modelling changes in the shear modulus and changes in the bulk modulus of the subsurface as a combination of a host medium shear modulus and host medium bulk modulus and a plurality of inclusion shear moduli and inclusion bulk moduli. Each inclusion shear modulus and inclusion bulk modulus associated with a unique inclusion geometry. An inclusion-based rock physical model is used to solve the models for changes in shear modulus and changes in bulk modulus to predict an effective shear modulus of the subsurface and an effective bulk modulus of the subsurface.

公开(公告)号：US09703006B2

公开(公告)日：2017-07-11

申请号：US13513816

申请日：2010-11-15

Applicant: David Stern ,  Adedayo S. Oyerinde ,  Isha Sahni ,  Ganesan S. Subramanian

Inventor： David Stern ,  Adedayo S. Oyerinde ,  Isha Sahni ,  Ganesan S. Subramanian

IPC: G06G7/48 ,  G01V11/00 ,  G06F17/50 ,  G01V99/00 ,  E21B43/16 ,  E21B43/00 ,  G06F17/18 ,  E21B47/00 ,  G06Q10/06 ,  G01V1/28 ,  G05B13/02

CPC classification number: G01V11/00 ,  E21B43/00 ,  E21B43/16 ,  E21B47/00 ,  G01V1/282 ,  G01V99/005 ,  G01V2210/66 ,  G01V2210/663 ,  G05B13/024 ,  G06F17/18 ,  G06F17/50 ,  G06F17/5009 ,  G06F2217/16 ,  G06Q10/063

Abstract: A method for matching production history to flow simulations includes identifying a plurality of parameters that control an objective function measuring the mismatch between a flow simulation response in a parameter subspace and a production history. A value is calculated for an objective function and for a static measurement at each of a plurality of experiments in the parameter subspace. These results are used to develop a mathematical relationship between one or more static measurements and the objective function. During subsequent adjustment of the simulation model, a target window in the objective function is identified, and flow simulations are performed for each modified model that is predicted from the static geologic measurement to produce an objective function within the window. An objective function of each flow simulation to the production history is calculated and the procedure is iterated until the objective function is within a target range.

公开(公告)号：US09702995B2

公开(公告)日：2017-07-11

申请号：US14113103

申请日：2012-05-09

Applicant: Christopher DiCaprio ,  Jan Schmedes ,  Charlie Jing ,  Garrett M. Leahy ,  Anoop A. Mullur ,  Rebecca L. Saltzer

Inventor： Christopher DiCaprio ,  Jan Schmedes ,  Charlie Jing ,  Garrett M. Leahy ,  Anoop A. Mullur ,  Rebecca L. Saltzer

IPC: G06F7/60 ,  G06G7/48 ,  G01V1/28 ,  G01V11/00 ,  G01V3/08

CPC classification number: G01V1/282 ,  G01V11/00 ,  G01V2003/086

Abstract: Method for estimating geological properties in a subsurface region using multiple types of geophysical data (21). An initial physical properties model 22 is constructed. Some parameters in the model are frozen (23) and optionally portions of the model wave number and spatial domains (24) and the data frequency and data time domains (25), are also frozen. Then, a joint inversion (26) of the multiple data types is performed to calculate an update to the model only for the portions that are not frozen. The converged model (27) for this inversion is used as a new starting model, and the process is repeated (28), possibly several times, unfreezing more parameters and data each time until the desired spatial and parameter resolution (29) has been achieved.

公开(公告)号：US09702994B2

公开(公告)日：2017-07-11

申请号：US13371190

申请日：2012-02-10

Applicant: James E. Rickett ,  Paul N. Childs

Inventor： James E. Rickett ,  Paul N. Childs

IPC: G06G7/48 ,  G01V1/28

CPC classification number: G01V1/282 ,  G01V2210/21 ,  G01V2210/24 ,  G01V2210/614

Abstract: Seismic data processing methods and computing systems are presented. In one embodiment, a method is disclosed that includes simulating a set of simulated seismic data from a set of acquired seismic data; separating the simulated seismic data into a plurality of data sets, wherein one set of data is matched in the acquired seismic data and one set of data is unmatched in the acquired seismic data; conforming the simulated seismic data and the acquired seismic data to one another using separated, simulated seismic data unmatched by a counterpart in the acquired seismic data from the acquired seismic data; and performing an inversion between the acquired seismic data and the separated, simulated seismic data after they are conformed to one another.

公开(公告)号：US20170192118A1

公开(公告)日：2017-07-06

申请号：US14988618

申请日：2016-01-05

Applicant: SCHLUMERGER TECHNOLOGY CORPORATION

Inventor： Xiang Du ,  Robin Fletcher

IPC: G01V1/50 ,  G01V1/28

CPC classification number: G01V1/282 ,  G01V2210/512 ,  G01V2210/614 ,  G01V2210/6242

Abstract: A method can include receiving input that specifies a type of partitionable pre-stack seismic data for a geologic environment and corresponding partitions; receiving an elastic model parameterized via elastic properties; generating synthetic seismic data for at least a portion of the geologic environment based at least in part on point spread functions and the elastic model; for the partitions, comparing the pre-stack seismic data and the generated synthetic seismic data; based at least in part on the comparing, updating the elastic model; and outputting values for at least one of the elastic properties.

公开(公告)号：US20170168179A1

公开(公告)日：2017-06-15

申请号：US15335797

申请日：2016-10-27

Applicant: Schlumberger Technology Corporation

Inventor： Mikhail Lemarenko ,  Christoph Klieber ,  Sylvain Thierry ,  Sandip Bose ,  Smaine Zeroug

IPC: G01V1/30 ,  G01V1/28 ,  G01V1/32

CPC classification number: G01V1/306 ,  E21B47/0005 ,  E21B47/082 ,  G01V1/282 ,  G01V1/32 ,  G01V1/50 ,  G01V2210/6224 ,  G01V2210/6226 ,  G01V2210/677

Abstract: Techniques involve obtaining acoustic data from an acoustic logging tool, where the acoustic data includes waves reflected from the casing, the annular fill material, the formation, and/or interfaces between any of the casing, the annular fill material, one or more interfaces between any of the mud, the casing, and the annular fill material. Techniques include normalizing the acoustic wave to result in a normalized wave having a comparable spectral shape with a reference wave, and comparing the normalized wave with the reference wave. The reference wave may be generated or modeled or produced from a look-up table or database, and may be estimated based on initial estimates of wellbore parameters. Based on the comparison of the normalized wave with the reference wave, a best-fit reference wave substantially matching the normalized wave may be identified. The best-fit reference wave may correspond with a thickness of the casing, an acoustic impedance of the annular fill material, and an acoustic impedance of mud.

公开(公告)号：US20170168178A1

公开(公告)日：2017-06-15

申请号：US15364585

申请日：2016-11-30

Applicant: PGS Geophysical AS

Inventor： Sean Crawley ,  Jaime Ramos-Martinez ,  Alejandro Antonio Valenciano Mavilio ,  Nizar Chemingui

IPC: G01V1/30 ,  G01V1/38 ,  G01V1/28

CPC classification number: G01V1/303 ,  G01V1/282 ,  G01V1/306 ,  G01V1/38 ,  G01V2210/614 ,  G01V2210/67

Abstract: The present disclosure is related to a velocity model update with a full waveform inversion gradient. At least one method can include updating a velocity model of a subsurface, which can include suppressing high wavenumber components of the velocity model provided by reflected energy with a decomposed full waveform inversion gradient. Low wavenumber components can be preserved in the velocity model.

公开(公告)号：US09658357B2

公开(公告)日：2017-05-23

申请号：US13698051

申请日：2011-05-19

Applicant: Artem Valeryevich Kabannik ,  Denis Yurievich Emelyanov ,  Bruno Lecerf ,  Kirill Leonidovich Tarasenko ,  Andrey Vladimirovich Bogdan ,  Dmitry Sergeevich Kuznetsov

Inventor： Artem Valeryevich Kabannik ,  Denis Yurievich Emelyanov ,  Bruno Lecerf ,  Kirill Leonidovich Tarasenko ,  Andrey Vladimirovich Bogdan ,  Dmitry Sergeevich Kuznetsov

IPC: G05D7/00 ,  G05D11/00 ,  G01V1/00 ,  G01V1/28 ,  G01V1/40 ,  E21B43/26 ,  E21B47/14 ,  G06F17/00

CPC classification number: G01V1/40 ,  E21B43/26 ,  E21B47/14 ,  G01V1/282 ,  G01V2210/1234 ,  G05D7/00 ,  G06F17/00

Abstract: This invention relates to petroleum industry, in particularly, to control and monitoring of processes related to reservoir stimulation. A method of real time diagnostic of fracture operations with combination of tube waves and microseismic monitoring, comprising performing a fracture in a wellbore, recording microseismic activity generated during the fracturing operations. Determining of microseismic event locations, generating low frequency pressure waves (tube waves) near the wellbore, recording of tube waves reflections from the fractures in real time and analyzing microseismic event locations and tube waves reflections from the fractures.

公开(公告)号：US20170131418A1

公开(公告)日：2017-05-11

申请号：US15342284

申请日：2016-11-03

Applicant: CGG SERVICES SA

Inventor： Min WANG ,  Yi XIE ,  Weiquan XU ,  Stephen Kefeng XIN

IPC: G01V1/28 ,  G01V1/30

CPC classification number: G01V1/282 ,  G01V1/303 ,  G01V2210/66

Abstract: Computing device, computer instructions and method for determining an image of a surveyed subsurface. The method includes receiving recorded wave fields D recorded with seismic sensors over the subsurface; generating a series of modified recorded wave fields Dn based on the recorded wave fields D; iteratively applying an objective function Fi to (1) one element Di of the series of modified recorded wave fields Dn and (2) predicted wave fields Pmi, where “i” is an index associated with a given iteration; calculating with a computing device an updated velocity model mi+1 based on a previous velocity model mi and a step length; and producing the image of the subsurface based on the recorded wave fields D and the updated velocity model mi+1. The predicted wave fields Pmi are predicted by the previous velocity model mi.