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1.发明公开公开(公告)号：US20230243220A1
公开(公告)日：2023-08-03
申请号：US17579972
申请日：2022-01-20
发明人： Otto FANINI , Gary Wayne KAINER , Batakrishna MANDAL , Gennady KOSCHEEV , Marvin BATRES , Lesley Allison FESSLER
CPC分类号： E21B17/1021 , E21B17/1057 , E21B47/01
摘要： A downhole sensor position adjustment device on a downhole sensor assembly comprising a set of centralizers and a sensor array coupled to an adjustable framework radially positionable by an actuator. The actuator includes an extend-retract mechanism to radially position the sensor array a predetermined radial distance to an inner surface of a casing. A controller communicatively coupled to the extend-retract mechanism is configured to actuate the extend-retract mechanism. A positioning sensor provides feedback of the predetermined radial distance of the sensor array to the inner surface of the casing.
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2.发明申请公开(公告)号：US20190025451A1
公开(公告)日：2019-01-24
申请号：US16068967
申请日：2017-03-28
IPC分类号： G01V1/50
CPC分类号： G01V1/50 , G01V1/44 , G01V1/48 , G01V2200/14 , G01V2210/47 , G01V2210/6224 , G01V2210/74
摘要： Techniques for estimating and visually presenting formation slowness are disclosed herein. The techniques include receiving acoustic signal responses from adjacent formations at a plurality of depths in a borehole environment, mapping a distribution of the acoustic signal responses at each depth according to slowness and a frequency values, determining at least one confidence interval to define a coherence threshold for the distribution of the acoustic signal responses at each depth, generating a variable density log for each depth based on the distribution of acoustic signals responses that satisfy the confidence interval for one or more frequency ranges, determining a formation slowness value for each depth based on the variable density log for the each depth, and presenting a semblance map that includes a slowness axis, a depth axis, the formation slowness value for each depth, and at least a portion of the distribution of acoustic signal responses at each depth.
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3.发明公开公开(公告)号：US20240288600A1
公开(公告)日：2024-08-29
申请号：US18292071
申请日：2022-06-24
发明人： Chung CHANG , Gary Wayne KAINER , Jing JIN , Ruijia WANG , Xiang WU , Keith BELLMAN
IPC分类号： G01V1/52
CPC分类号： G01V1/523 , G01V2200/16 , G01V2210/121 , G01V2210/1299 , G01V2210/1429
摘要： The invention relates to a slim sonic logging tool with multiple modules for borehole resonance mode and pitch-catch measurement, comprising a cylindrical housing, a monopole transmitter, a pair of cross-dipole transmitters and a ring of receivers disposed between the monopole transmitter and the pair of cross-dipole transmitters within the cylindrical housing, the ring of receivers, being axially around a circumference of the first cylindrical housing.
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公开(公告)号：US20240280718A1
公开(公告)日：2024-08-22
申请号：US18292478
申请日：2022-05-11
发明人： Chung CHANG , Jing JIN , Gary Wayne KAINER , Ruijia WANG , Xiang WU , Keith BELLMAN
IPC分类号： G01V1/52 , E21B47/005
CPC分类号： G01V1/523 , E21B47/005
摘要： Aspects of the subject technology relate to systems and methods for providing a TTCE dense acoustic array slim tool. An example through tubing cement evaluation (TTCE) tool comprising: a housing including a longitudinal axis; a transmitter being positioned within the housing, the transmitter being configured to operate in sonic and ultrasonic frequencies and being angled with respect to the longitudinal axis; a plurality of receivers being positioned within the housing, each of the plurality of receivers being isolated from the transmitter; one or more processors; and at least one computer-readable storage medium having stored therein instructions which, when executed by the one or more processors, cause the TTCE tool to: receive at least one of sonic and ultrasonic data from the plurality of receivers; and determine tubing or cement angular information based on the at least one of the sonic and ultrasonic data received from the plurality of receivers.
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