公开(公告)号：US20240167339A1

公开(公告)日：2024-05-23

申请号：US18058170

申请日：2022-11-22

Applicant: SAUDI ARABIAN OIL COMPANY

Inventor： Yunlai Yang

IPC: E21B7/04 ,  G01V1/44 ,  G01V1/52

CPC classification number: E21B7/04 ,  G01V1/44 ,  G01V1/523

Abstract: A system includes an acoustic attenuation interface disposed between a first acoustic transmission conduit and a second acoustic transmission conduit. An acoustic signal source acoustically coupled to the first acoustic transmission conduit generates an acoustic signal. An acoustic noise source acoustically coupled to the second acoustic transmission conduit generates an acoustic noise. A first sensor is configured to detect a first composite signal including the acoustic signal after transmission through at least a portion of the first acoustic transmission conduit and an attenuated acoustic noise. A second sensor is configured to detect a second composite signal including the acoustic signal after transmission through at least a portion of the first acoustic transmission conduit and attenuated by the acoustic attenuation interface and the acoustic noise. An acoustic signal processing system is configured to determine a noise-reduced signal from the first composite signal and the second composite signal.

公开(公告)号：US20240061138A1

公开(公告)日：2024-02-22

申请号：US18448426

申请日：2023-08-11

Applicant: Board of Regents, The University of Texas System

Inventor： Steven H. Harder

IPC: G01V1/42 ,  G01V1/44

CPC classification number: G01V1/42 ,  G01V1/44

Abstract: Certain embodiments are directed to seismic survey systems for generating S-waves and Love waves for seismic exploration using explosives in inclined holes. The direction in which the inclined hole is drilled controls the azimuthal polarization of the S-waves generated. The explosive needs to be placed tightly into the borehole eliminating fluids from around the charge or alternatively grouted and stemmed to eliminate fluids.

公开(公告)号：US20180106147A1

公开(公告)日：2018-04-19

申请号：US15833734

申请日：2017-12-06

Applicant: Fracture ID, Inc.

Inventor： James D. Lakings ,  Jeffrey A. Godwin ,  Jesse B. Havens ,  Joshua D. Ulla

IPC: E21B49/00 ,  G01V1/44 ,  G01V1/30

CPC classification number: E21B49/003 ,  E21B49/005 ,  E21B49/02 ,  G01V1/306 ,  G01V1/44 ,  G01V2200/16

Abstract: An innovative apparatus and computer implemented methods to obtain values for a set of scalars corresponding to each force and displacement, which may be obtained from acoustical signals captured by sensors of a drill bit while drilling, in a material of known mechanical properties, such as a cement from casing the well, such that the application and use of the scalars in relation to measurements of the mechanics while drilling, such as the acceleration of the bit and motion of the bit captured by sensors such as accelerometers, allow for absolute values of mechanical rock properties to be obtained in rock formations, being drilled through, with otherwise unknown mechanical properties prior to drilling.

公开(公告)号：US09885795B2

公开(公告)日：2018-02-06

申请号：US14519209

申请日：2014-10-21

Applicant: Natasa Mekic ,  Douglas J. Patterson

Inventor： Natasa Mekic ,  Douglas J. Patterson

IPC: G01V1/44 ,  G01V1/50 ,  G01V1/28

CPC classification number: G01V1/44 ,  G01V1/284 ,  G01V1/50

Abstract: An embodiment of a method of estimating characteristics of an earth formation includes: disposing an acoustic tool in a borehole in an earth formation, the acoustic tool including an acoustic multipole transmitter and at least one multipole acoustic receiver; transmitting acoustic signals into the borehole, the acoustic signals generating at least one acoustic body wave that radiates away from the borehole into a far-field formation region; measuring reflected signals including body waves reflected from reflective boundaries in the far-field formation region; identifying a reflective boundary in the formation and reflection attributes associated with the reflective boundary; and estimating at least one of a thickness, distance and a lateral extent of a hydrocarbon formation feature based on the reflected signals and the reflection attributes.

公开(公告)号：US20180003843A1

公开(公告)日：2018-01-04

申请号：US15623436

申请日：2017-06-15

Applicant: Schlumberger Technology Corporation

Inventor： Hiroshi Hori ,  Wataru Izuhara ,  Naoki Sakiyama ,  Toshimichi Wago ,  Hiroshi Nakajima ,  Shin'ichi Houshuyama ,  Akane Imamura

IPC: G01V1/46 ,  E21B17/10 ,  E21B49/00 ,  E21B47/00 ,  E21B47/18 ,  E21B33/14

CPC classification number: E21B47/0005 ,  G01V1/159 ,  G01V1/44 ,  G01V1/52 ,  G01V2001/526 ,  G01V2210/1299 ,  G01V2210/1429 ,  G01V2210/622 ,  G01V2210/6242 ,  G01V2210/626

Abstract: A downhole tool for operation within a wellbore and including a transmitter array and first and second receiver arrays. The transmitter array includes a plurality of transmitters azimuthally distributed around a longitudinal axis of the downhole tool at a first axial location of the downhole tool. The first receiver array includes a plurality of first receivers azimuthally distributed around the longitudinal axis at a second axial location axially offset from the first axial location. The second receiver array includes a plurality of second receivers azimuthally distributed around the longitudinal axis at a third axial location axially offset from the first and second axial locations.

公开(公告)号：US09841523B2

公开(公告)日：2017-12-12

申请号：US14967971

申请日：2015-12-14

Applicant: Schlumberger Technology Corporation

Inventor： Rod William Shampine ,  Adam Keilers

IPC: G01V1/00 ,  G01V1/44 ,  E21B47/00 ,  E21B47/09 ,  E21B47/10 ,  G01V1/137

CPC classification number: G01V1/44 ,  E21B47/0005 ,  E21B47/091 ,  E21B47/101 ,  G01V1/137 ,  G01V2210/1212 ,  G01V2210/1299

Abstract: A method to generate a tube wave in a tubular system involves reciprocating a plunger in a chamber system to alternatingly increase and decrease net volume, drawing fluid from and returning the fluid to a tubular system and into and from the chamber system, to generate a tube wave, and guiding the tube wave to the tubular system. Also, a tube wave generator-sensor system has a chamber system, a plunger, a driver to reciprocate the plunger within the chamber system to generate a tube wave, a flow passage to guide the tube wave into a tubular system, and a sensor to receive the tube wave signal and/or response from the tubular system. The method and system can work with or without a firing valve and or accumulator, without adding or subtracting fluid from the tubular system.

公开(公告)号：US09784874B2

公开(公告)日：2017-10-10

申请号：US14567912

申请日：2014-12-11

Applicant: Baker Hughes Incorporated

Inventor： James V. Leggett ,  Kamalesh Chatterjee ,  Roger R. Steinsiek ,  Vaibhav Sule ,  Jinsong Zhao

IPC: G01V1/44 ,  G10K11/34 ,  G01S15/89 ,  G01S7/52 ,  G01S7/524 ,  G01S7/526 ,  G01S15/88

CPC classification number: G01V1/44 ,  E21B47/0002 ,  G01S7/52003 ,  G01S7/524 ,  G01S7/526 ,  G01S15/88 ,  G01S15/89 ,  G10K11/34 ,  G10K11/346

Abstract: An apparatus for imaging a borehole wall includes an array of acoustic transducers and a controller. The controller scans a section of the borehole wall with first acoustic beams that are transmitted by a series of sets of acoustic transducers in the array to produce adjacent first acoustic measurements that are spaced a first distance D1 apart along the borehole wall, each set having at least one transducer that is different from an adjacent set, (ii) steers a second acoustic beam along the section of the borehole wall using one set of acoustic transducers in the array to produce adjacent second acoustic measurements that are a second distance D2 apart along the borehole wall, and (iii) images the borehole wall using the first acoustic measurements and the second acoustic measurement to generate a borehole wall image, wherein at least one second acoustic measurement is between adjacent first acoustic measurements.

公开(公告)号：US20170275989A1

公开(公告)日：2017-09-28

申请号：US15616742

申请日：2017-06-07

Applicant: Fracture ID, Inc.

Inventor： James D. Lakings ,  Jeffrey A. Godwin ,  Jesse B. Havens ,  Joshua D. Ulla

IPC: E21B49/00 ,  G01V1/44 ,  G01V1/30 ,  E21B7/04

CPC classification number: E21B49/003 ,  E21B43/26 ,  E21B47/026 ,  E21B47/16 ,  E21B49/006 ,  G01V1/288 ,  G01V1/306 ,  G01V1/44 ,  G01V2200/16 ,  G01V2210/62 ,  G01V2210/646

Abstract: An innovative apparatus and computer implemented methods to obtain values for a set of scalars corresponding to each force and displacement, which may be obtained from acoustical signals captured by sensors of a drill bit while drilling, in a material of known mechanical properties, such as a cement from casing the well, such that the application and use of the scalars in relation to measurements of the mechanics while drilling, such as the acceleration of the bit and motion of the bit captured by sensors such as accelerometers, allow for absolute values of mechanical rock properties to be obtained in rock formations, being drilled through, with otherwise unknown mechanical properties prior to drilling.

公开(公告)号：US09757770B2

公开(公告)日：2017-09-12

申请号：US14787733

申请日：2013-09-30

Applicant: Halliburton Energy Services, Inc.

Inventor： Chung Chang ,  Chen Li ,  Arthur Cheng ,  Jing Jin

IPC: G01V1/44 ,  B06B1/06 ,  E21B47/10 ,  G01V1/02 ,  B06B1/02 ,  H01L41/18 ,  H04R17/00

CPC classification number: B06B1/0603 ,  B06B1/0207 ,  E21B47/101 ,  G01V1/159 ,  G01V1/44 ,  H01L41/18 ,  H04R17/00

Abstract: Apparatus and techniques are described, such as for obtaining information indicative of an acoustic characteristic of a formation, including using a transducer assembly, comprising a base plate, a first piezoelectric slab and a second piezoelectric slab. The base plate includes a first region extending axially in a first direction beyond the first and second piezoelectric slabs along a specified axis of the base plate and a second region extending axially in a second direction, opposite the first direction, beyond the first and second piezoelectric slabs. In various examples, a length of the first region along the specified axis is different than a length of the second region to provide an asymmetric configuration. In various examples, an anchoring element is mechanically coupled to the base plate at a location corresponding to a node location of a specified acoustic vibration mode.

公开(公告)号：US09732609B2

公开(公告)日：2017-08-15

申请号：US14125931

申请日：2012-06-15

Applicant: James Minto ,  Bruce P. Marion

Inventor： James Minto ,  Bruce P. Marion

IPC: E21B47/14 ,  G01V1/40 ,  G01V1/44

CPC classification number: E21B47/14 ,  G01V1/40 ,  G01V1/44 ,  G01V2210/1429

Abstract: The present disclosure relates to increasing the output power of a clamped seismic or acoustic source disposed in a wellbore without damaging the borehole/casing/cement. One or more sources are provided and carried on a conveyance mechanism. The conveyance mechanism may be a wireline, a coiled tubing, or a drill pipe. The one or more sources are run into and/or out of the wellbore and temporarily disposed at various locations within the wellbore. The one or more sources are temporarily clamped to the wellbore at the various locations using distributed clamping, and a source signal is generated by the distributed clamped source. The distributed clamping device may have multiple clamping mechanisms along an increased length of the source or a continuous clamping mechanism along an increased length of the source.