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Logging instrument

A logging tool and casing technology, applied in the field of oil exploration, can solve problems such as unsafe logging tools, affecting test results, component misalignment, etc., and achieve the effects of effective use of space, convenient maintenance, and simple structure

Pending Publication Date: 2019-01-18
CHINA NAT OFFSHORE OIL CORP +1
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AI Technical Summary

Problems solved by technology

[0002] In the field of oil well logging, a logging tool generally includes an upper joint, a casing and an electronic circuit assembly inside the casing. The electronic circuit assembly includes a connecting block connected in sequence, an inner skeleton and an outer skeleton, and a thermos bottle is provided on the outside of the inner skeleton. , because the components in the logging tool are easy to move in the circumferential direction after assembly, resulting in misalignment of the components, so that it is impossible to ensure that the high side of the logging tool is in a straight line after assembly, which affects the test effect

Method used

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Embodiment Construction

[0029] In order to make the objectives, technical solutions and advantages of the present invention clearer, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, the embodiments in the present application and the features in the embodiments may be arbitrarily combined with each other if there is no conflict.

[0030] The invention provides a logging tool, a casing and a joint arranged at one end of the casing, wherein an electronic circuit assembly connected with the joint is arranged in the casing, and the electronic circuit assembly includes a connecting block connected in sequence, a thermal insulation A bottle and an outer frame, the thermos is provided with an inner frame assembly, the two ends of the inner frame assembly are respectively connected with the connecting block and the outer frame, and the outer casing is respectively connected with the connector and the electronic circ...

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Abstract

The invention discloses a logging instrument. The logging instrument comprises a housing and a connector disposed at one end of the housing, the housing is internally provided with an electronic circuit assembly connected to the connector, and the electronic circuit assembly comprises a connecting block, a vacuum bottle and an outer framework which are connected in sequence; the vacuum bottle is internally provided with an inner framework assembly, the two ends of the inner framework assembly are connected with the connecting block and the outer framework respectively, the housing is separately connected with the connector and the electronic circuit assembly through first keys for circumferential positioning, and the vacuum bottle is separately connected with the connecting block, the inner framework assembly and the outer framework through second keys for circumferential positioning. The coaxiality of the components of the logging instrument is precise, it can be ensured that the highedges of multiple logging instruments are located on the same straight line after the are logging instruments are connected in series, and the step of adjusting the direction is omitted.

Description

technical field [0001] The invention relates to the field of petroleum exploration, in particular to a logging tool. Background technique [0002] In the field of petroleum logging, the logging tool generally includes an upper joint, an outer casing and an electronic circuit assembly in the outer casing. The electronic circuit assembly includes a connecting block, an inner skeleton and an outer skeleton connected in sequence, and a thermos bottle is arranged on the outside of the inner skeleton. , Because the components in the logging tool are easily moved in the circumferential direction after assembly, resulting in misalignment of the components, it is impossible to ensure that the high side of the logging tool is in a straight line after assembly, which affects the test effect. SUMMARY OF THE INVENTION [0003] In order to solve the above technical problems, the present invention provides a logging tool, the coaxiality of each component of the logging tool is accurate, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B47/00E21B17/02
CPCE21B17/028E21B47/00
Inventor 王野梁陈国栋冯永仁吴兴方黄琳王显南张平
Owner CHINA NAT OFFSHORE OIL CORP
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