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An Induction Electric Field Logging Tool

A technology of induction electric field and logging instrument, which is applied in the field of detection wells, can solve the problems of unsatisfactory testing accuracy and detection depth, and the inability to conduct accurate testing in deep formations, achieving the effect of wide receiving range

Active Publication Date: 2022-08-02
BC P INC CHINA NAT PETROLEUM CORP +1
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Problems solved by technology

[0002] Induction logging is a logging method that uses the principle of electromagnetic induction to obtain formation conductivity. It is a relatively mature testing method in the modern petroleum exploration industry. Induction logging can realize high-precision imaging of formations near the wellbore, but for of deep formations cannot be accurately tested
For the conductivity test of deep formations, the remote detection electromagnetic wave technology is mainly used, but the test accuracy and detection depth are far from meeting the current logging needs

Method used

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  • An Induction Electric Field Logging Tool
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  • An Induction Electric Field Logging Tool

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Embodiment Construction

[0031] In order to make those skilled in the art better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only Embodiments are part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] It should be noted that the terms "first", "second" and the like in the description and claims of the present invention and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used may be interchanged under appropriate ...

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Abstract

The invention discloses an induction electric field logging tool, which belongs to the technical field of detection wells. An induction electric field logging tool includes a transmitting system, a collecting and receiving system and a signal processing unit; the transmitting system is used for transmitting electromagnetic wave signals to the formation; the collecting and receiving system is used for collecting the secondary induction field signals passing through the formation; the signal processing unit is used for receiving The signal collected by the acquisition and receiving system is processed, and the all-round conductivity of the formation at a preset depth is output; the preset depth of the formation is 0-30m. The induced electric field logging tool can realize high-precision imaging in the near formation and high-precision imaging in the far formation.

Description

technical field [0001] The invention belongs to the technical field of detection wells, in particular to an induced electric field logging tool. Background technique [0002] Induction logging is a logging method that uses the principle of electromagnetic induction to obtain formation conductivity. It is a relatively mature testing method in the modern petroleum exploration industry. Induction logging can achieve high-precision imaging of near-hole formation The deep formations cannot be accurately tested. For the deep formation conductivity test, the remote detection electromagnetic wave technology is mainly used, but the test accuracy and detection depth are far from meeting the current logging requirements. [0003] Induction electric field logging is a new logging method designed to make up for the above-mentioned defects. It can realize all-round testing of 0-30m deep formations. It is an important means to detect oil and gas resources. It also has high-precision near ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B49/00E21B47/00E21B47/12
CPCE21B49/00E21B47/00E21B47/12
Inventor 王水航陈涛贺秋利宋青山陈章龙范晓文史超党峰
Owner BC P INC CHINA NAT PETROLEUM CORP
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