公开(公告)号：US20180164453A1

公开(公告)日：2018-06-14

申请号：US15577647

申请日：2016-05-27

申请人： Sub Salt Solutions Limited

发明人： Ernie ESSER ,  Liuis GUASCH

IPC分类号： G01V1/28

CPC分类号： G01V1/282 ,  G01V1/30 ,  G01V11/00 ,  G01V2210/614

摘要： There is provided a method of subsurface exploration, the method comprising generating a geophysical representation of a portion of the volume of the Earth from measurements of at least one observable physical quantity. The method involves providing an observed geophysical data set derived from measurements of at least one observable physical quantity relating to the portion of the volume of the Earth and generating a predicted geophysical data set using a subsurface model of the portion of the Earth. The subsurface model has a spatial geometry and comprises a plurality of model coefficients representing at least one geophysical parameter. One or more objective functions are provided which are operable to measure the similarity and/or dis-similarity between the observed and predicted geophysical datasets. Then, the subsurface model is iteratively modified to minimise and/or maximise the one or more objective functions. The or each iterative step modifies a subsurface model to produce an updated subsurface model and one or more iterative steps comprises: defining one or more directed paths through a subsurface model, the or each directed path being defined with respect to the spatial geometry of the subsurface model; defining one or more controls on the modifications to the subsurface model, wherein the or each control is operable to control the total amount by which at least one function of the model coefficients of the subsurface model and/or updated subsurface model increases or decreases in the direction of one or more of the directed paths, wherein the defined controls are asymmetric such that, for a given directed path, the controls are different in opposite directions along the given path; and; updating the subsurface model utilising the asymmetric controls. An updated sub-surface model of a portion of the Earth for subsurface exploration is then provided.

公开(公告)号：US09995844B2

公开(公告)日：2018-06-12

申请号：US14205031

申请日：2014-03-11

申请人： Pavel Dimitrov ,  Matthias Imhof ,  Martin Terrell

发明人： Pavel Dimitrov ,  Matthias Imhof ,  Martin Terrell

IPC分类号： G01V11/00

CPC分类号： G01V11/00

摘要： Method and system are described for modeling one or more geophysical properties of a subsurface volume (102). The present disclosure provides method of modeling the subsurface comprising obtaining one or more subsurface volumes and performing at least two operations (104) on the subsurface volumes. A graph of operations is determined (106) based on each of the at least two operations in which the graph of operations includes a description of each of the at least two operations and a flow path for the each of the at least two operations (108). The graph of operation is stored (110). A specific operation within the graph of operations may then be identified (112). An additional operation may be created and connected to the graph of operations at a node associated with the specific operation to provide an additional branch to the graph of operations (114).

公开(公告)号：US20180158306A1

公开(公告)日：2018-06-07

申请号：US15886706

申请日：2018-02-01

申请人： Metrasens Limited

发明人： Mark Nicholas Keene ,  Thomas John Horton

IPC分类号： G08B21/18 ,  G01V11/00 ,  G01V3/08

CPC分类号： G08B21/18 ,  G01V3/08 ,  G01V11/00 ,  G01V11/002

摘要： An apparatus for protecting an entrance to a protected area comprises a magnetic sensor to measure an ambient magnetic field or gradient within a first zone of sensitivity at a non-magnetic sensor means adapted to detect the presence of objects within a primary detection zone, a signal processing circuit arranged in communication with the magnetic sensor apparatus and nonmagnetic sensor apparatus, and a warning device operable by an output signal from the signal processing circuit, the warning device adapted to provide an alarm. The signal processing circuit identifies temporal variations due to the movement of a ferromagnetic object within the ambient magnetic field and correlates them with instances in which the non-magnetic sensor means detects the presence of an object in its detection zone, and causes the alarm to operate in the event that the correlation is indicative of the presence of a ferromagnetic object in the primary detection zone. It also determines the direction from which an object is approaching the using signals from the nonmagnetic sensor means and modifies the operation of the warning device dependent on the direction.

公开(公告)号：US09921334B2

公开(公告)日：2018-03-20

申请号：US14910736

申请日：2013-09-04

申请人： Ingrain, Inc.

发明人： Mehdi Matt Honarpour ,  Jack Dvorkin

IPC分类号： G01V5/10 ,  G01V5/08 ,  G01V5/12 ,  G01V5/04 ,  G01V11/00 ,  G01N23/04

CPC分类号： G01V5/12 ,  G01N23/046 ,  G01V5/04 ,  G01V11/00

摘要： A method is provided for evaluating a geological formation which integrates well data and high resolution computed tomography of rock samples thereof. Relationships are determined for a formation between a formation property, such as an elastic property, and at least one of photoelectric effect index (PEF), effective atomic number (Zeff), and bulk density (RHOB), using well data, and tomographic imaging is used to determine at least one of the latter mentioned properties (PEF, Zeff, RHOB) at higher resolution, which can be used in the relationship to determine a corresponding formation property. This affords an opportunity to develop formation property data for more challenging formations to evaluate, such as thinly laminated formations or others. Computerized systems, computer program products on non-transitory computer usable storage media, and programs for performing the methods are also provided.

公开(公告)号：US09910063B2

公开(公告)日：2018-03-06

申请号：US15019831

申请日：2016-02-09

申请人： PGS Geophysical AS

发明人： Gustav Göran Mattias Südow ,  Stian Hegna

IPC分类号： G01C21/16 ,  G01P21/00 ,  G01V1/20 ,  G01V1/38 ,  G01C9/02 ,  G01P15/02 ,  G01V11/00 ,  B63B21/66 ,  G01V1/18 ,  G01V3/18

CPC分类号： G01P21/00 ,  B63B21/66 ,  G01C9/02 ,  G01C21/16 ,  G01C21/165 ,  G01P15/02 ,  G01V1/184 ,  G01V1/189 ,  G01V1/201 ,  G01V1/3808 ,  G01V3/18 ,  G01V11/00

摘要： Included are methods and systems for marine geophysical surveying. A system includes a streamer; a sensor package coupled to the streamer, wherein the sensor package comprises a primary orientation sensor and a complimentary orientation sensor, wherein the complimentary orientation sensor comprises a magnetometer, wherein the primary orientation sensor and the complimentary orientation sensor are capable of collecting data indicative of the orientation of the streamer; and geophysical sensors distributed on the streamer.

公开(公告)号：US09897529B2

公开(公告)日：2018-02-20

申请号：US15325077

申请日：2016-09-12

申请人： CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)

发明人： Lanchang Xing ,  Changling Liu ,  Qiang Chen ,  Yanfeng Geng ,  Chenquan Hua ,  Yu Qi

IPC分类号： G01N15/08

CPC分类号： G01N15/088 ,  G01N27/026 ,  G01N29/07 ,  G01N29/46 ,  G01N33/241 ,  G01N2291/0245 ,  G01N2291/106 ,  G01V11/00

摘要： The present invention disclosures a test system and test method for a simulation experiment of gas hydrate in a porous medium. The test system comprises a reactor, a sensor system, a hardware interface apparatus and a data processing system; the reactor is used for containing tested medium, the sensor system is mounted inside the reactor, and the sensor system is connected to the data processing system through the hardware interface apparatus; the test method comprises a procedure of experiment and measurement data acquisition, and a procedure of analyzing and processing measurement signals; by establishing of electrical model I, acoustic model II and the fused model III, realizing the simulation of the synthesis/decomposition processes of gas hydrate in the deposits in laboratory environment and implementation of the acoustic and electrical parameters combined test, an accurate gas hydrate saturation calculation model can be established at last.

公开(公告)号：US20180016895A1

公开(公告)日：2018-01-18

申请号：US15546860

申请日：2015-12-15

申请人： SCHLUMBERGER TECHNOLOGY CORPORATION

发明人： Xiaowei WENG ,  Charles-Edouard COHEN

IPC分类号： E21B49/00 ,  G01V1/28 ,  G01V1/30 ,  G01V99/00 ,  E21B41/00 ,  E21B43/26 ,  E21B49/02 ,  E21B49/08 ,  E21B47/00 ,  E21B47/12 ,  E21B47/14

CPC分类号： E21B49/00 ,  E21B41/0092 ,  E21B43/26 ,  E21B47/0002 ,  E21B47/122 ,  E21B47/14 ,  E21B49/02 ,  E21B49/08 ,  G01V1/288 ,  G01V1/306 ,  G01V1/42 ,  G01V1/50 ,  G01V11/00 ,  G01V99/005 ,  G01V2210/6224 ,  G01V2210/6244 ,  G01V2210/644 ,  G01V2210/646 ,  G01V2210/66

摘要： A method of performing a fracture operation at a wellsite is provided. The wellsite has a fracture network therein with natural fractures. The method involves stimulating the wellsite by injecting an injection fluid with proppant into the fracture network, obtaining wellsite data comprising natural fracture parameters of the natural fractures and obtaining a mechanical earth model of the subterranean formation, defining the natural fractures based on the wellsite data by generating one or more realizations of the natural fracture data based on a statistical distribution of natural fracture parameters, meters, generating a statistical distribution of predicted fluid production by generating a hydraulic fracture growth pattern for the fracture network over time based on each defined realization and predicting fluid production from the formation based on the defined realizations, selecting a reference production from the generated statistical distribution, and optimizing production and uncertainty by adjusting the stimulating operations based on the selecting.

公开(公告)号：US20170371072A1

公开(公告)日：2017-12-28

申请号：US15544187

申请日：2016-01-25

申请人： SCHLUMBERGER TECHNOLOGY CORPORATION

发明人： Sushil Shetty ,  Lin Liang ,  Tarek M. Habashy ,  Vanessa Simoes ,  Austin Boyd ,  Bikash K. Sinha ,  Smaine Zeroug

IPC分类号： G01V99/00 ,  G01N15/08 ,  G01V11/00

CPC分类号： G01V99/005 ,  G01N15/088 ,  G01V11/00 ,  G01V2210/1429 ,  G01V2210/622

摘要： A method for determining properties of a formation traversed by a well or wellbore employs measured sonic data, resistivity data, and density data for an interval-of-interest within the well or wellbore. A formation model that describe properties of the formation at the interval-of-interest is derived from the measured sonic data, resistivity data, and density data for the interval-of-interest. The formation model is used to derive simulated sonic data, resistivity data, and density data for the interval-of-interest. The measured sonic data, resistivity data, and density data for the interval-of-interest and the simulated sonic data, resistivity data, and density data for the interval-of-interest are used to refine the formation model and determine properties of the formation at the interval-of-interest. The properties of the formation may be a radial profile for porosity, a radial profile for water saturation, a radial profile for gas saturation, a radial profile of oil saturation, and a radial profile for pore aspect ratio.

公开(公告)号：US20170350245A1

公开(公告)日：2017-12-07

申请号：US15535690

申请日：2015-05-01

申请人： Halliburton Energy Services, Inc.

发明人： Amit Padhi ,  Mark Elliott Willis

IPC分类号： E21B49/00 ,  E21B41/00 ,  G01V1/42 ,  G01V1/30 ,  E21B44/00 ,  E21B47/12

CPC分类号： E21B49/00 ,  E21B41/0092 ,  E21B44/00 ,  E21B47/12 ,  G01V1/306 ,  G01V1/42 ,  G01V11/00 ,  G01V2210/161 ,  G01V2210/626 ,  G01V2210/667

摘要： In some embodiments, an apparatus and a system, as well as a method and an article, may operate to generate a parent population, wherein each member of the parent population includes a set of model parameters describing a layer model of the geological formation; to execute a perturbation algorithm to generate subsequent child populations, from the parent population, until a termination criterion is met; to provide a plurality of solutions based on at least one member of the parent population and on at least one member of each child population; and to control a drilling operation based on a revised layer model that has been generated based on a selected one of the plurality of solutions. Additional apparatus, systems, and methods are disclosed.

公开(公告)号：US20170306754A1

公开(公告)日：2017-10-26

申请号：US15135565

申请日：2016-04-22

申请人： Schlumberger Technology Corporation

发明人： Daniel Golparian

IPC分类号： E21B47/12

CPC分类号： E21B47/123 ,  G01V11/00 ,  H04J14/02

摘要： A system that is usable with a well includes a telemetry network; a plurality of receivers that are arranged in groups; and a plurality of concentrators that are associated with the groups of receivers. A given concentrator is adapted to acquire data from an associated group of the receivers, and the concentrators communicate the data to an Earth surface of the well using a plurality of frequencies that are allocated among the concentrators.