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Inductive probe for inducing array structure of coils

An array structure and induction probe technology, applied in the field of induction probes, can solve the problem of undiscovered induction coil arrays, etc., and achieve the effects of high strength, easy sliding debugging, and low specific gravity

Inactive Publication Date: 2011-11-16
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] After investigation and retrieval, no similar or identical induction coil array structure to the present invention has been found in China

Method used

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  • Inductive probe for inducing array structure of coils
  • Inductive probe for inducing array structure of coils
  • Inductive probe for inducing array structure of coils

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Experimental program
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Embodiment Construction

[0024] The structure of the present invention will be described below in conjunction with the accompanying drawings.

[0025] It is composed of a metal mandrel 1, a composite copper tube 2, a coil skeleton 3, and a spacing adjustment member 4; the metal mandrel is a hollow structure, and the wall of the metal mandrel perpendicular to the axis is provided with a threading hole through the inside and outside. The outer round wall of the mandrel rod is provided with a coil skeleton wire slot and an oil slot; the composite copper tube is sheathed outside the metal mandrel, and the outer round wall of the composite copper tube is provided with a coil skeleton sliding slot; the coil skeleton is provided with a threading hole and Winding groove, the coil is wound on the winding groove, the coil frame is arranged in an array, and installed on the sliding groove of the coil frame of the composite copper tube. The coil frame is composed of a transmitting coil and eight sets of receiving ...

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Abstract

The invention relates to an inductive probe for inducing an array structure of coils. The inductive probe consists of a metal core rod, a composite copper pipe, coil frameworks and space adjustment members, wherein the metal core rod is in a hollow structure; opposite rod body walls, vertical to the axis of the metal core rod, of the metal core rod are provided with thread holes penetrating from interior to exterior; the outer round wall of a metal core rod body is provided with coil framework thread passing grooves and oil flowing grooves; the composite copper pipe is sleeved outside the metal core rod, and the outer round wall of the composite copper pipe is provided with coil framework sliding grooves; the coil frameworks are provided with thread holes and coiling grooves, the coils are wound on the coiling grooves, the coil frameworks are arranged in an array mode and installed on the coil framework sliding grooves of the composite copper pipe, each coil framework consists of a transmitting coil and eight groups of receiving coils, and each group of receiving coils is composed of a main receiving coil and an auxiliary receiving coil; and the space adjustment members are installed between the adjacent coil frameworks. According to the invention, array and digital measurement can be realized, and detection curves with multiple longitudinal resolutions and multiple radial detection depths can be obtained.

Description

Technical field: [0001] The invention relates to an induction probe with an induction coil array structure. The induction coil array structure induction probe is an induction probe used for an array induction petroleum logging instrument. Background technique: [0002] The downhole part of the array induction logging tool is composed of three major parts: the electronic tool sub, the coil system and the transmitting sub. The coil system is the key component of the array induction tool, and the coil array structure is the key to the coil system. [0003] The traditional induction logging uses multiple transmitting coils and multiple receiving coils connected in series to produce coil system characteristics with fixed detection depth and longitudinal resolution. However, with the needs of oilfield users, a new type of induction logging must be designed The instrument (that is, the array induction logging instrument) realizes array and digital measurement through its coil syste...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B47/00G01V3/28
Inventor 王正阮亦军王丽蓉李梦春贺秋莉宋青山储妮晟李永权李科
Owner BC P INC CHINA NAT PETROLEUM CORP
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