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CN-121993114-A - Method for arranging structural elements of tool for improving underground magnetic detection safety

CN121993114ACN 121993114 ACN121993114 ACN 121993114ACN-121993114-A

Abstract

The invention discloses a method for arranging structural elements of a tool for improving underground safety of magnetic detection, which belongs to the technical field of oil and gas well drilling and comprises the following steps of a, preparing a titanium alloy outer barrel, b, setting one end of the titanium alloy outer barrel as a female buckle, setting the other end of the titanium alloy outer barrel as a male buckle, c, milling a first sinking groove along the circumferential direction of the outer surface of the titanium alloy outer barrel at one end close to the male buckle, milling a second sinking groove along the circumferential direction of the outer surface of the titanium alloy outer barrel at one end close to the female buckle, d, milling a shallow groove between the first sinking groove and the second sinking groove, connecting one end of the shallow groove with the first sinking groove and the other end of the shallow groove with the second sinking groove, e, packaging a magnetic probe and a circuit board in the first sinking groove, packaging a battery pack in the second sinking groove, installing wires in the shallow groove, and connecting the magnetic probe, the circuit board and a battery pack through wires. The magnetic detection tool manufactured by the method can avoid signal interference, ensure the magnetic detection effect, reduce stress in the underground compression bending rotation process and ensure the use safety.

Inventors

  • GAO YONGWEI
  • YANG XIANLI
  • LI QIANCHUN
  • LIU LIPENG
  • JIANG SHENGHUI
  • LIU KEQIANG
  • REN WEIMING
  • QIANG HAIFENG
  • NIU TAO
  • LI KUNPENG

Assignees

  • 中国石油天然气集团有限公司
  • 中国石油集团川庆钻探工程有限公司

Dates

Publication Date
20260508
Application Date
20241106

Claims (10)

  1. 1. A method for arranging structural elements of a tool for improving the downhole safety of magnetic detection, which is characterized by comprising the following steps: a. Preparing a titanium alloy outer cylinder (1), and determining the overall space size of a magnetic detection element; b. one end of a titanium alloy outer cylinder (1) is set as a female buckle (2), and the other end of the titanium alloy outer cylinder (1) is set as a male buckle (3); c. A first sinking groove (4) is milled at one end close to the male buckle (3) along the circumferential direction of the outer surface of the titanium alloy outer cylinder (1), and a second sinking groove (5) is milled at one end close to the female buckle (2) along the circumferential direction of the outer surface of the titanium alloy outer cylinder (1); d. milling a shallow groove (6) between the first sinking groove (4) and the second sinking groove (5), wherein one end of the shallow groove (6) is connected with the first sinking groove (4), and the other end of the shallow groove (6) is connected with the second sinking groove (5); e. The magnetic probe (7) and the circuit board (8) are packaged in the first sinking groove (4), the battery pack (9) is packaged in the second sinking groove (5), the electric wire (10) is installed in the shallow groove (6), and the magnetic probe (7), the circuit board (8) and the battery pack (9) are connected through the electric wire (10).
  2. 2. The method for arranging the structural elements of the tool for improving the safety of the magnetic detection underground according to claim 1, wherein in the step a, the determination of the overall space size of the magnetic detection element means the determination of the sizes of the circuit board (8), the magnetic probe (7) and the battery pack (9).
  3. 3. The method of claim 1, wherein the circuit board (8) is 30×10×300mm, the magnetic probe (7) is 20×20×18mm, and the battery pack (9) is 25×30×400mm.
  4. 4. The method for arranging the tool structural elements for improving the safety of the magnetic detection underground according to claim 1, wherein in the step c, the lengths of the first sinking groove (4) and the second sinking groove (5) are 300-400mm, the widths are 30mm and the depths are 30mm.
  5. 5. The method for arranging the tool structural elements for improving the safety of the magnetic detection underground as claimed in claim 1, wherein in the step e, the magnetic probe (7) and the circuit board (8) are packaged in the first sinking groove (4), namely the magnetic probe (7) and the circuit board (8) are fixed in the first sinking groove (4) and are injected into the first sinking groove (4) for sealing.
  6. 6. The method for arranging the structural elements of the tool for improving the safety of the magnetic detection underground as claimed in claim 1, wherein in the step e, the battery pack (9) is packaged in the second sinking groove (5), and the battery pack (9) is fixed in the second sinking groove (5) and is injected and sealed to the second sinking groove (5).
  7. 7. The method for arranging the tool structural elements for improving the safety of the magnetic detection underground according to claim 1, wherein in the step e, a first gland isolation plate (11) is connected to the first sink (4), and a first sealing band (12) is arranged on the first gland isolation plate (11) in the circumferential direction.
  8. 8. The method for arranging the tool structural elements for improving the safety of the magnetic detection underground according to claim 7, wherein a plurality of first aluminum screws (13) are arranged on the first gland isolation plate (11), and the first gland isolation plate (11) is fixed on the first sink groove (4) through the first aluminum screws (13).
  9. 9. The method for arranging the tool structural elements for improving the safety of the magnetic detection underground according to claim 1, wherein in the step e, a second gland isolation plate (14) is connected to the second sink (5), and a second sealing belt (15) is arranged on the second gland isolation plate (14) in the circumferential direction.
  10. 10. The method for arranging the tool structural elements for improving the safety of the magnetic detection underground according to claim 9, wherein a plurality of second aluminum screws (16) are arranged on the second gland isolation plate (14), and the second gland isolation plate (14) is fixed on the second sink groove (5) through the second aluminum screws (16).

Description

Method for arranging structural elements of tool for improving underground magnetic detection safety Technical Field The invention relates to the technical field of oil and gas well drilling, in particular to a method for arranging structural elements of a tool for improving the safety of a magnetic detection underground. Background Aiming at the development and experiment of underground anti-collision operation and tools, in order to prevent the occurrence of sleeve collision accidents, conventional scanning and three-dimensional scanning verification are usually carried out on well design tracks, and the anti-collision requirements of well depths of over 2000-3000m and shortest distances of over 40m are met by adjusting the tracks. The adjacent well detection method based on the ground penetrating radar can realize active ranging guiding drilling, theoretical analysis is carried out on the propagation medium absorption boundary problem, the dispersion medium model and the iterative algorithm problem by establishing an underground radar detection model, and simulation research is carried out on the propagation condition of radar signals in the stratum in the time domain range. With the continuous progress of drilling technology and measuring instruments, platform cluster wells are increasingly favored by special advantages, and large platform cluster wells are increasingly constructed. How to guarantee that collision accidents do not occur between wellbores in platform cluster well construction is an important construction point, so that in platform cluster well construction, firstly, a drilling platform is optimized, then wellbore collision prevention is conducted from a drilling design source according to an optimization result, calculation is conducted according to actual inclinometry data in construction, collision prevention scanning calculation is conducted, and accordingly, the fact that the wellbores do not collide can be guaranteed. The Chinese patent document with publication number of CN221650636U and publication date of 2024, 09 and 03 discloses a pulley-conveyed underground Kong Hang transient electromagnetic probe which comprises a probe body and is characterized in that electromagnetic compatibility EMC components are installed inside the probe body, a plurality of groups of pulley mechanisms are uniformly arranged on the periphery of the probe body, each pulley mechanism comprises three groups of pulley components, the three groups of pulley components are arranged around the periphery of the probe body, the electromagnetic compatibility EMC components consist of magnetic cores, magnetic receiving coils and circuit boards and are sequentially installed inside the probe body, and the purpose of detecting nearby water bodies is achieved by utilizing the cooperation of the magnetic cores, the magnetic receiving coils and the circuit boards. The pulley-conveyed underground Kong Hang transient electromagnetic probe disclosed in the patent document utilizes a plurality of groups of pulley mechanisms to avoid the direct contact between the outer shell of the probe body and the hole wall when the probe body enters the hole during use, so that the abrasion of the outer shell of the probe body is avoided, the service life of the probe body is prolonged, and the movement of the probe body in the hole is smoother. But is easy to be interfered by signals, and the drilling anti-collision magnetic detection effect is poor. Disclosure of Invention In order to overcome the defects of the prior art, the invention provides a method for arranging structural elements of a tool for improving the safety of a magnetic detection underground, and the magnetic detection tool prepared by the invention can avoid signal interference, ensure the magnetic detection effect, reduce the stress in the process of underground compression bending rotation and ensure the use safety. The invention is realized by the following technical scheme: a method for arranging structural elements of a tool for improving the downhole safety of magnetic detection, which is characterized by comprising the following steps: a. preparing a titanium alloy outer cylinder, and determining the overall space size of a magnetic detection element; b. setting one end of the titanium alloy outer cylinder as a female buckle, and setting the other end of the titanium alloy outer cylinder as a male buckle; c. Milling a first sinking groove along the circumferential direction of the outer surface of the titanium alloy outer cylinder at one end close to the male buckle, and milling a second sinking groove along the circumferential direction of the outer surface of the titanium alloy outer cylinder at one end close to the female buckle; d. Milling a shallow groove between the first sinking groove and the second sinking groove, wherein one end of the shallow groove is connected with the first sinking groove, and the other end of the shallow groove is connected wi