公开(公告)号：WO2023038675A1

公开(公告)日：2023-03-16

申请号：PCT/US2022/027070

申请日：2022-04-29

Applicant: HALLIBURTON ENERGY SERVICES, INC.

Inventor： HINKE, Sean ,  SCHIERMEIER, Pete L.

IPC: G01V3/30 ,  G01V3/28 ,  E21B47/13

Abstract: A method and system for ranging between two bottom hole assemblies (BHA). The method and system may include transmitting an electromagnetic field from a ranging device disposed on a first BHA, and measuring the electromagnetic field with a receiver disposed on a second BHA to form a measurement set. The method and system may further include an information handling system that may compare the measurement set to a decay rate of the electromagnetic field and identifying a distance between the ranging device and the receiver based at least in part on the decay rate.

公开(公告)号：WO2022196844A1

公开(公告)日：2022-09-22

申请号：PCT/KR2021/003331

申请日：2021-03-18

Applicant: 주식회사 지오멕스소프트

Inventor： 이효진 ,  심재민 ,  김성모 ,  채휘영 ,  김윤 ,  김태훈 ,  유재용 ,  이경남

IPC: G01V3/12 ,  G01V3/17 ,  G01V3/30 ,  G01V3/38 ,  G01S13/88 ,  G01S7/03 ,  G06Q50/10 ,  G06T19/00

Abstract: 본 발명의 일 실시예에 따른 지하시설물 관리시스템은 GPR 탐사장치를 이용하여 탐사지역의 GPR 탐사 데이터를 수집하고, GPR 탐사데이터를 학습된 딥러닝 네트워크에 의해 분석하고, GPR 탐사데이터의 처리방법에 의해 가상의 지하시설물을 생성한 뒤, GPS-AR 장치를 통해 작업자에게 공사 현장 내 지하시설물의 위치 및 정보를 제공할 수 있다.

公开(公告)号：WO2022050988A1

公开(公告)日：2022-03-10

申请号：PCT/US2021/027015

申请日：2021-04-13

Applicant: HALLIBURTON ENERGY SERVICES, INC.

Inventor： HILL, III, Freeman Lee ,  DAI, Junwen ,  FOUDA, Ahmed Elsayed

IPC: E21B47/13 ,  E21B49/00 ,  G01V3/30

Abstract: A method for estimating a pipe property for a plurality of nested tubulars. The method may comprise disposing an electromagnetic (EM) logging tool in a wellbore. The electromagnetic logging tool may comprise a transmitter disposed on the electromagnetic logging tool and a receiver disposed on the electromagnetic logging tool. The method may further comprise transmitting an electromagnetic field from the transmitter into one or more tubulars, measuring the eddy current in the pipe string with the receiver on at least one channel to obtain a plurality of measurements, forming an EM log from the plurality of measurements, extracting data and distinct features from the EM log, forming a relationship between the EM log data and a database, wherein the database is formed from one or more high-resolution measurements, and producing a mapping function between the EM log and the database.

公开(公告)号：WO2022026443A1

公开(公告)日：2022-02-03

申请号：PCT/US2021/043275

申请日：2021-07-27

Applicant: BAKER HUGHES OILFIELD OPERATIONS LLC

Inventor： AL-OFI, Salah ,  SAAD, Bilal ,  ALI, Syed Shujath ,  KESSERWAN, Hasan ,  JIN, Guodong

IPC: G01V3/30 ,  G01V3/38 ,  E21B47/12 ,  E21B44/00

Abstract: Examples described herein provide a computer-implemented method for deriving textual properties of a reservoir formation. The method includes acquiring multi-frequency dielectric data (εmeas)· The method further includes applying a dielectric mixing model between different fluid phases to generate an effective fluid permittivity (εfluid) by mixing the permittivity of water and hydrocarbon fluids. The method further includes applying the dielectric mixing model between the effective fluid permittivity (εfluid) and a matrix permittivity (εm). The method further includes minimizing a difference between a measured dielectric response and the dielectric mixing model by optimizing model parameters. The method further includes computing a cementation exponent (m) and a saturation exponent (n) from the multi -frequency dielectric data (εmeas)· The method further includes estimating a formation property based at least in part on the cementation exponent (m) and the saturation exponent (n). A wellbore operation is controlled based at least in part on the formation property.

公开(公告)号：WO2021258047A1

公开(公告)日：2021-12-23

申请号：PCT/US2021/038233

申请日：2021-06-21

Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION ,  SCHLUMBERGER CANADA LIMITED ,  SERVICES PETROLIERS SCHLUMBERGER ,  SCHLUMBERGER TECHNOLOGY B.V.

Inventor： TAN, Kong Hauw Sarwa Bakti ,  HE, Qingyan ,  ZHANG, Qing ,  ZHANG, Desheng ,  HARMS, Kent ,  FERNANDEZ, Daniel

IPC: G01V13/00 ,  G01V3/30 ,  G01V3/38 ,  E21B47/022 ,  H01Q1/04

Abstract: A method for calibrating an electromagnetic measurement tool includes deploying a test loop about a first antenna in the electromagnetic measurement tool and electromagnetically coupling the test loop and the first antenna and measuring a first voltage. The test loop is then deploying about a second antenna in the electromagnetic measurement tool and electromagnetically coupling the test loop and the second antenna and measuring a second voltage. A ratio of the first voltage to the second voltages is computed that can be used to calibrate the first antenna with respect to the second antenna.

公开(公告)号：WO2020172126A1

公开(公告)日：2020-08-27

申请号：PCT/US2020/018576

申请日：2020-02-18

Applicant: PROBE TECHNOLOGY SERVICES, INC.

Inventor： BECKMAN, Marvin ,  HO, Thientu ,  TRAN, Loi ,  HASTINGS, Mark ,  HENDRIX, Terry

IPC: E21B47/08 ,  E21B47/00 ,  G01B5/08 ,  G01B5/12 ,  G01D5/22 ,  G01V3/30

Abstract: A caliper-arm-position sensor comprising a differential variable reluctance transducer (DVRT) and circuits to drive the DVRT with a substantially sinusoidal signal and to sample a signal at the DVRT once per drive-signal cycle at a predetermined position in the drive-signal cycle is disclosed.

公开(公告)号：WO2020139364A1

公开(公告)日：2020-07-02

申请号：PCT/US2018/067820

申请日：2018-12-28

Applicant: HALLIBURTON ENERGY SERVICES, INC.

Inventor： DONG, Weixin ,  WU, Hsu-Hsiang ,  PAN, Li

IPC: G01V3/26 ,  G01V3/30 ,  E21B47/00

Abstract: A system and method for electromagnetic measurements. The system may comprise an electromagnetic transmitter, wherein the electromagnetic transmitter is an antenna and is operable to transmit a low frequency electromagnetic field into a formation or a high frequency electromagnetic field into the formation. The system may further comprise an electromagnetic receiver, wherein the electromagnetic receiver is an antenna and is operable to record the high frequency electromagnetic field or the low frequency electromagnetic field. The method may comprise transmitting a high frequency electromagnetic field, recording a high frequency electromagnetic field, transmitting a low frequency electromagnetic field, recording a low frequency electromagnetic field, performing a shallow inversion on the low frequency electromagnetic field and the high frequency electromagnetic field to form a formation resistivity model, and running the deep inversion with the random initial guesses that have the misfit.

公开(公告)号：WO2020076923A1

公开(公告)日：2020-04-16

申请号：PCT/US2019/055355

申请日：2019-10-09

Applicant: TRUSTEES OF DARTMOUTH COLLEGE

Inventor： GONG, Jun ,  YANG, Xing-Dong

IPC: G01B7/00 ,  G01B7/02 ,  G01B7/04 ,  G01B7/30 ,  G01V3/08 ,  G01V3/10 ,  G01V3/30 ,  G01V3/34

Abstract: Aspects of the disclosure provide a sensing apparatus including a sensing device, a memory, and processing circuitry. The sensing device includes resonators having respective resonant frequencies. The resonators include an array of inductive coils positioned on a surface of the apparatus. The sensing device can output a signal indicating changes of the resonant frequencies caused by presence of an object proximate to the surface. The memory stores reference signals corresponding to reference objects. Each reference signal indicates changes of the resonant frequencies caused by the respective reference object proximate to the surface. The processing circuitry can receive, from the sensing device, a particular signal indicating changes of the resonant frequencies caused by presence of a particular object proximate to the surface. The processing circuitry compares the particular signal with the stored reference signals of the reference objects to determine an identity of the particular object.

公开(公告)号：WO2020060909A1

公开(公告)日：2020-03-26

申请号：PCT/US2019/051261

申请日：2019-09-16

Applicant: SAUDI ARABIAN OIL COMPANY ,  ARAMCO SERVICES COMPANY

Inventor： NOUI-MEHIDI, Mohamed, Nabil ,  MOSTEFAI, Ilies

IPC: G01V3/30

Abstract: Methods and systems for identifying a salinity gradient in a formation surrounding a bore of a subterranean well includes introducing an antenna assembly into the bore of the subterranean well. The antenna assembly has an elongated antenna body. An emitting antenna extends axially along an outer surface of the antenna body. A receiving antenna extends axially along the outer surface of the antenna body, the receiving antenna being spaced circumferentially apart from the emitting antenna. An electromagnetic interrogation wave is produced into the formation with the emitting antenna with a pulse duration of no greater than 0.01 seconds. A reflected wave is received with the receiving antenna. The amplitude of the reflected wave is analyzed to determine a distribution of chlorine ion concentration in the formation.

公开(公告)号：WO2019094439A1

公开(公告)日：2019-05-16

申请号：PCT/US2018/059585

申请日：2018-11-07

Applicant: SAUDI ARABIAN OIL COMPANY ,  ARAMCO SERVICES COMPANY

Inventor： SHOEMAKER ELLIS, Erika ,  SCHMIDT, Howard, Khan ,  SERVIN, Jesus Manuel Felix

IPC: G01V3/30

CPC classification number: G01V3/26 ,  G01V3/30

Abstract: Provide are compositions and methods for electromagnetic (EM) surveying of subsurface hydrocarbon reservoirs using a giant dielectric material as a contrast agent. An injection fluid composition for EM surveying may include an aqueous fluid and giant dielectric nanoparticles having a dielectric constant of at least 10000 in the 1 Hz to 1 MHz frequency range. EM surveying of a subsurface hydrocarbon reservoirs may be performed by introducing an injection fluid having the giant dielectric nanoparticles into the subsurface hydrocarbon reservoir and generating an image of the position of the injection fluid from a transit time of emitted EM energy that traveled through the reservoir.