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CN-121993165-A - Drill rod torque measuring device

CN121993165ACN 121993165 ACN121993165 ACN 121993165ACN-121993165-A

Abstract

The invention discloses a drill rod torque measuring device, which belongs to the technical field of petroleum drilling exploration and measurement, and comprises a short joint component, an annular groove, an annular surface, a rectangular plane and a circuit board body, wherein the annular groove, the annular surface and the rectangular plane are formed on the short joint component, the circuit board body is arranged in the rectangular plane, the short joint component is arranged between a square drill rod and a conventional drill rod, torque transmission between the square drill rod and the conventional drill rod is realized based on the short joint component, the installation of the circuit board body and a strain gauge is realized by arranging the annular groove, the annular surface and the rectangular plane on the short joint component, the measurement of the torque of the square drill rod is realized by measuring the torque of the short joint component, and the sealing of the circuit board body in an operation environment can be realized by matching with the arrangement of an outer barrel component and heat conducting glue, so that the normal use of the measuring device in a high torque and high tension environment is ensured.

Inventors

  • MA RUTAO
  • LI GUOPING
  • YANG XIANGTONG
  • YE TINGFU
  • YUAN GUOHAI
  • Luo Jingbing
  • LIU JUNLIN
  • Fan Guodai
  • XIA XUE

Assignees

  • 中国石油天然气股份有限公司
  • 中国石油集团工程技术研究院有限公司

Dates

Publication Date
20260508
Application Date
20241105

Claims (10)

  1. 1. A drill pipe torque measurement device, comprising: A nipple member (3) having a first end (3 a) connected to the kelly bar (1) and a second end (3 b) connected to the conventional drill bar (4) in an axial direction; The annular groove (300) is formed on the circumferential surface of the short joint component (3), a rectangular plane (301) and an annular surface (302) are formed on the annular groove (300) through milling, the ratio of the depth of the rectangular plane (301) to the outer diameter of the short joint component (3) is 0.10-0.12, and the depth of the annular surface (302) is larger than the depth of the rectangular plane (301); A plurality of strain gauges mounted on the annular surface (302); A circuit board body (303) mounted in the rectangular plane (301) and having a processing module (304) and an emitter module (305); An outer tube member (306) which is assembled on the annular groove (300) and forms a coating for the rectangular plane (301) and the annular surface (302), and the interval between the outer tube member (306) and the circuit board body (303) and the strain gauge is filled with heat-conducting glue.
  2. 2. The drill rod torque measuring device according to claim 1, wherein the ratio of the depth of the annular groove (300) to the outer diameter of the nipple member (3) is 0.02-0.03, and the ratio of the axial length of the annular groove (300) to the axial length of the nipple member (3) is 0.25-0.30.
  3. 3. The drill rod torque measuring device according to claim 1, wherein the ratio of the axial length of the rectangular plane (301) to the axial length of the annular groove (300) is 0.70-0.72.
  4. 4. The drill rod torque measuring device according to claim 1, wherein the ratio of the axial length of the annular surface (302) to the axial length of the rectangular plane (301) is 0.32-0.35.
  5. 5. A drill rod torque measuring device according to claim 1, characterized in that the outer barrel member (306) is dimensioned to fit the annular groove (300).
  6. 6. A drill rod torque measuring device according to claim 5, wherein the outer barrel member (306) comprises a first barrel (307) and a second barrel (308) which are identical in structure, and the first barrel (307) and the second barrel (308) are fixed on the pup joint member (3) through screws.
  7. 7. The drill rod torque measuring device according to claim 1, wherein the matrix of the heat-conducting glue is epoxy resin, and the filler is oxide.
  8. 8. A drill pipe torque measuring device according to claim 1, wherein the transmitter module (305) and surface equipment are adapted to transmit data via electromagnetic or acoustic waves.
  9. 9. The drill rod torque measuring device according to claim 1, wherein the first end (3 a) of the nipple member (3) is provided with a box structure connected with the kelly (1), and the second end (3 b) of the nipple member (3) is provided with a pin structure connected with a conventional drill rod (4).
  10. 10. A drill rod torque measuring device according to claim 1, characterized in that the nipple member (3) is made of 42CrMo or 40CrNiMo material.

Description

Drill rod torque measuring device Technical Field The invention belongs to the technical field of petroleum drilling exploration and measurement, and particularly relates to a drill rod torque measuring device. Background In the petroleum drilling and well repairing process, the torque on the drill string can effectively reflect the working conditions of underground drilling, drilling sticking and the like, and can display the working state of a drill bit, so that the torque is an important parameter for representing the safety of underground operation. The conventional kelly torque measurement comprises uphole measurement, namely, a sensor is placed underground, measured data is transmitted to the ground through mud pulse, but the pulse transmission rate is too low to be used for judging dangerous torque in real time in the well repairing process and cannot support second-level decision, and the other system is used for measuring on a top drive, but the related measuring tool is large in size, so that the sensor cannot be installed in the kelly. Disclosure of Invention The invention aims to provide a drill rod torque measuring device, which solves the problem that the prior measuring tool cannot be suitable for measuring the torque of a kelly rod. In order to achieve the purpose, the invention provides a drill rod torque measuring device, which comprises the following technical scheme: a nipple member having a first end connected to the kelly bar and a second end connected to the round bar in an axial direction; The annular groove is formed on the circumferential surface of the short joint component, a rectangular plane and an annular surface are formed on the annular groove through milling, the ratio of the depth of the rectangular plane to the outer diameter of the short joint component is 0.10-0.12, and the depth of the annular surface is larger than the depth of the rectangular plane; a plurality of strain gauges mounted on the annular surface; the circuit board body is arranged in the rectangular plane and is provided with a processing module and a transmitter module; The outer barrel member is assembled on the annular groove, the rectangular plane and the annular surface are coated, and the interval between the outer barrel member and the circuit board body as well as the strain gauge is filled with heat-conducting glue. Further, the ratio of the depth of the annular groove to the outer diameter of the short joint member is 0.02-0.03, and the ratio of the axial length of the annular groove to the axial length of the short joint member is 0.25-0.30. Further, the ratio of the axial length of the rectangular plane to the axial length of the annular groove is 0.70-0.72. Further, the ratio of the axial length of the annular surface to the axial length of the rectangular plane is 0.32-0.35. Further, the outer barrel member is sized to fit the annular groove. Further, the outer barrel member comprises a first barrel body and a second barrel body which are identical in structure, and the first barrel body and the second barrel body are fixed on the short joint member through screws. Further, the matrix of the heat-conducting glue is epoxy resin, and the filler is oxide. Further, the transmitter module and the ground equipment realize data transmission through electromagnetic waves or sound waves. Further, the first end of the pup joint component is provided with a female buckle structure connected with the kelly, and the second end of the pup joint component is provided with a male buckle structure connected with the circular drill rod. Further, the nipple member is made of 42CrMo or 40CrNiMo material. Compared with the prior art, the invention has the beneficial effects that: according to the application, the short joint component is arranged between the square drill rod and the conventional drill rod, torque transmission between the square drill rod and the conventional drill rod is realized based on the short joint component, the installation of the circuit board body and the strain gauge is realized by arranging the annular groove, the annular surface and the rectangular plane on the short joint component, the measurement of the torque of the square drill rod is realized by measuring the torque of the short joint component, and the sealing of the circuit board body in an operation environment can be realized by matching with the arrangement of the outer barrel component and the heat-conducting glue, so that the normal use of the measuring device in a high torque and high tension environment is ensured. Drawings FIG. 1 is a three-dimensional schematic view of a nipple member; FIG. 2 is a schematic plan view of a nipple member; FIG. 3 is a cross-sectional view of a nipple member; FIG. 4 is a schematic view of a strain gauge mounting location; fig. 5 is a schematic view of the installation of the nipple member. In the figure: 1. A kelly; 2. a turntable; 3. The device comprises a short joint component, a fir