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Three-probe azimuth gamma processing method and system

A technology of azimuth gamma and processing method, which is applied in the direction of earthwork drilling, measurement, borehole/well components, etc., can solve problems such as inability to partition, and achieve the effect of improving reservoir drilling rate and development efficiency

Pending Publication Date: 2022-06-28
BEIJING LIUHE GREATNESS TECH
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Problems solved by technology

[0004] Based on this, the embodiment of the present application provides a three-probe azimuth gamma processing method and system, which can realize gamma partitioning in sliding drilling, and solve the shortcomings of conventional azimuth gamma instruments that cannot be partitioned during sliding drilling. Improve reservoir drilling rate and development efficiency in slim hole operation

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  • Three-probe azimuth gamma processing method and system

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Embodiment Construction

[0058] The following specific embodiments are used to illustrate the embodiments of the present invention. Those who are familiar with the technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the present invention. , not all examples. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0059] The three-probe azimuth gamma of the present application is composed of three gamma sensors, and the circumferential direction of each sensor is 120° different, which can realize the function of gamma division in sliding drilling and compound drilling, and can realize the solution of multiple divisions; In the case of compound drilling, the API value of the gamma of each partition is realized like th...

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Abstract

The invention discloses a three-probe azimuth gamma processing method and system. Firstly, the working state of a drill collar is obtained, wherein the working state comprises a composite drilling state and a sliding drilling state; working states of gamma sensors on the side wall of the drill collar and corresponding partitions are set, and API values of all the gamma sensors in the running state in all the partitions around the drill collar are obtained; and according to the working state of the drill collar and the API value of each gamma sensor in each partition around the drill collar, obtaining the API value and the natural gamma value of each partition. Gamma partitioning is achieved in sliding drilling, the defect that a conventional azimuth gamma instrument cannot partition in the sliding drilling process is overcome, and in slim hole operation, the reservoir drilling encounter rate and development efficiency are improved.

Description

technical field [0001] The invention relates to the field of oil logging while drilling, in particular to a three-probe azimuth gamma processing method and system. Background technique [0002] In recent years, the business volume of sidetracking in old wells has increased, but the market supply of small drilling tools, small screws, small diameter instruments and corresponding special tools required for sidetracking of old wells is insufficient. A small-sized azimuth gamma tool is developed for sidetracking horizontal wells in old wells to improve the drilling rate of reservoirs, avoid mudstone drilling and reduce the complex downhole conditions caused by mudstone drilling, improve development efficiency and benefits, and enhance market competitiveness. [0003] In the existing azimuth gamma processing method, in the sliding drilling process, the conventional azimuth gamma sensing instrument cannot realize partitioning because the drill rod does not rotate. SUMMARY OF THE...

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Application Information

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IPC IPC(8): E21B47/022
CPCE21B47/022
Inventor 冯建宇秦允海王羽郑学峰赵宏斌
Owner BEIJING LIUHE GREATNESS TECH
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