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CN-121994269-A - Simulation experiment device for underground measuring instrument

CN121994269ACN 121994269 ACN121994269 ACN 121994269ACN-121994269-A

Abstract

The invention provides a simulation experiment device for an underground measuring instrument, which belongs to the technical field of drilling engineering equipment and comprises a frame and a mounting bracket, wherein the mounting bracket is rotatably mounted on the frame through a rotating shaft, a measuring tool is mounted on the mounting bracket, a liquid circulation system comprises a liquid supply pipeline and a backflow pipeline, the outlet end of the liquid supply pipeline is communicated with a tool water inlet, the inlet end of the backflow pipeline is communicated with a tool water outlet, and drilling fluid is circulated in the measuring tool through the liquid supply pipeline and the backflow pipeline. The invention realizes the circulation of drilling fluid by communicating the outlet end of the fluid supply pipeline with the water inlet of the tool and the inlet end of the reflux pipeline with the water outlet of the tool, and communicating the inlet of the fluid supply pipeline and the outlet of the reflux pipeline with the slurry pump and the water tank, thereby simulating and keeping the continuous circulation of the fluid in the measuring tool and realizing the smooth generation of pressure pulse waves in the measuring tool in the well deviation simulation process.

Inventors

  • WANG QING
  • CHEN CHANGCHANG
  • XUE QILONG
  • WANG HAIGE
  • HUANG HONGCHUN
  • FAN YU
  • JI GUODONG
  • GUO JIANHUA
  • LIU XIAOAO
  • ZHANG JIAWEI
  • YU JINPING

Assignees

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

Dates

Publication Date
20260508
Application Date
20241107

Claims (10)

  1. 1. The simulation experiment device for the underground measuring instrument is characterized by comprising a frame (2) and a mounting bracket (3), wherein the mounting bracket (3) is rotatably mounted on the frame (2) through a rotating shaft (4); the device comprises a mounting bracket (3), a measuring tool (1), a power system (5) and a liquid circulation system (6), wherein the mounting bracket (3) is provided with the measuring tool (1), the power system (5) is used for driving the mounting bracket (3) to rotate, and the liquid circulation system (6) is communicated with the measuring tool (1) to be measured; The measuring tool (1) is provided with a tool water inlet (11) and a tool water outlet (12); The liquid circulation system (6) comprises a liquid supply pipeline (61) and a backflow pipeline (62), wherein the outlet end of the liquid supply pipeline (61) is communicated with the tool water inlet (11), the inlet end of the backflow pipeline (62) is communicated with the tool water outlet (12), and drilling fluid is circulated in the measuring tool (1) through the liquid supply pipeline (61) and the backflow pipeline (62).
  2. 2. A simulation experiment apparatus for a downhole measuring instrument according to claim 1, wherein, The liquid supply pipeline (61) comprises a liquid supply hard pipe (611) and a liquid supply hose (612), the liquid supply hard pipe (611) is communicated with the liquid supply hose (612), the outlet end of the liquid supply hard pipe (611) passes through the mounting bracket (3) to be communicated with the tool water inlet (11), and the inlet end of the liquid supply hose (612) is communicated with the liquid supply mechanism.
  3. 3. A simulation experiment apparatus for a downhole measuring instrument according to claim 1, wherein, The backflow pipeline (62) comprises a first backflow hard pipe (621), a first connector (624), a second connector (625), a second backflow hard pipe (622), a third connector (626), a third backflow hard pipe (623) and a first backflow hose (627) which are sequentially communicated, wherein the inlet end of the first backflow hard pipe (621) penetrates through the mounting bracket (3) to be communicated with the tool water outlet (12), and the outlet end of the first backflow hard pipe is communicated with the liquid supply mechanism.
  4. 4. A simulation experiment apparatus for a downhole measuring instrument according to claim 3, wherein a second flowmeter (632) is arranged on the second return pipe (622), and a third flowmeter (633) is connected to the third joint (626).
  5. 5. A simulation experiment device for a downhole measuring instrument according to claim 3, wherein the third joint (626) is arranged coaxially to the rotation shaft (4).
  6. 6. A simulation experiment device for a downhole measuring instrument according to claim 1, further comprising a turbine measuring module (7), wherein one end of the turbine measuring module (7) is mounted at the tool water inlet (11) and the other end is in communication with the outlet end of the liquid supply line (61), or wherein one end of the turbine measuring module (7) is mounted at the tool water outlet (12) and the other end is in communication with the inlet end of the return line (62).
  7. 7. A simulation experiment apparatus for a downhole measuring instrument according to claim 6, wherein the turbine measuring module (7) comprises a measuring housing (71), a first bevel gear (72), a second bevel gear (73), a measuring cassette (74) and a transmission shaft (78), The measuring box (74) is fixedly arranged on the outer side face of the measuring shell (71), the first bevel gear (72) and the measuring shell (71) are coaxially arranged, the first bevel gear (72) is arranged inside the measuring shell (71), a transmission slot is fixedly formed in the first bevel gear (72), the transmission shaft (78) is rotatably arranged in the measuring shell (71), one end of the transmission shaft (78) is connected with the second bevel gear (73), the first bevel gear (72) and the second bevel gear (73) are meshed with each other, and the transmission shaft (78) extends outwards from the second bevel gear (73) to the inside of the measuring box (74).
  8. 8. A simulation experiment device for a downhole measuring instrument according to claim 7, wherein the turbine measuring module (7) further comprises a photoelectric encoder (75), a damper (76) and a torsion sensor (77), and the transmission shaft (78) is fixedly provided with the photoelectric encoder (75), the damper (76) and the torsion sensor (77) in sequence from the second bevel gear (73) to the measuring box (74).
  9. 9. A simulation experiment apparatus for a downhole measuring instrument according to claim 1, wherein the frame (2) comprises a stationary support (21), An angle sensor (22) and a limit switch (23) are arranged on the fixed support (21).
  10. 10. A simulation experiment device for a downhole measuring instrument according to claim 1, wherein the power system (5) comprises a motor (51), a first sprocket (52) and a second sprocket (53), the motor (51) is fixedly mounted on the frame (2), and the first sprocket (52) is arranged on a motor shaft of the motor (51), and the first sprocket (52) is in transmission connection with the second sprocket (53) arranged on the rotating shaft (4) through a chain.

Description

Simulation experiment device for underground measuring instrument Technical Field The invention belongs to the technical field of drilling engineering equipment, and particularly relates to a simulation experiment device for an underground measuring instrument. Background The directional drilling by using the drilling tool is an extremely important means for oil field exploration and development, and the well track design and control are the basic contents of the directional drilling technology. The induction and control of the well inclination angle are key to the completion of directional drilling. The well inclination angle is the angle between the direction of borehole advancement and the line of gravity. The induction and response control of the downhole measuring instrument arranged on the drilling tool to the well inclination angle is an important index for measuring the performance of the directional drilling tool. In the research and development process of the measuring tool, the performance of the measuring tool needs to be verified and known by simulating different well deviation working conditions through an experimental device. In the drilling engineering, the drilling fluid can play a role in transmitting hydraulic power to drive turbine blades in a measuring tool, generating mud pulse waves to transmit the functions of a well bottom, the ground and the like, playing an important role in drilling, and the existing experimental device cannot realize the circulation of the drilling fluid so as to truly simulate the experimental condition of the site. Therefore, the invention provides a simulation experiment device for an underground measuring instrument, which can enable drilling fluid to simulate drilling process scenes under different well inclination angles in a state of flowing inside a measuring tool. Disclosure of Invention In order to solve the problems, the invention provides a simulation experiment device for an underground measuring instrument, which comprises a frame and a mounting bracket, wherein the mounting bracket is rotatably mounted on the frame through a rotating shaft; the device comprises a mounting bracket, a measuring tool, a power system and a liquid circulation system, wherein the mounting bracket is provided with the measuring tool; The measuring tool is provided with a tool water inlet and a tool water outlet; The liquid circulation system comprises a liquid supply pipeline and a backflow pipeline, wherein the outlet end of the liquid supply pipeline is communicated with the tool water inlet, the inlet end of the backflow pipeline is communicated with the tool water outlet, and drilling fluid is circulated in the measuring tool through the liquid supply pipeline and the backflow pipeline. The liquid supply pipeline comprises a liquid supply hard pipe and a liquid supply hose, wherein the liquid supply hard pipe is communicated with the liquid supply hose, the outlet end of the liquid supply hard pipe penetrates through the mounting bracket to be communicated with the water inlet of the tool, and the inlet end of the liquid supply hose is communicated with the liquid supply mechanism. The backflow pipeline comprises a first backflow hard pipe, a first connector, a second backflow hard pipe, a third connector, a third backflow hard pipe and a first backflow hose which are sequentially communicated, wherein the inlet end of the first backflow hard pipe penetrates through the mounting bracket to be communicated with the water outlet of the tool, and the outlet end of the first backflow hard pipe is communicated with the liquid supply mechanism. Specifically, a second flowmeter is arranged on the second backflow hard pipe, and a third flowmeter is communicated with the third joint. Specifically, the third joint is coaxially arranged with the rotating shaft. Specifically, the simulation experiment device further comprises a turbine measurement module, one end of the turbine measurement module is installed at the water inlet of the tool, the other end of the turbine measurement module is communicated with the outlet end of the liquid supply pipeline, or one end of the turbine measurement module is installed at the water outlet of the tool, and the other end of the turbine measurement module is communicated with the inlet end of the backflow pipeline. In particular, the turbine measuring module comprises a measuring shell, a first bevel gear, a second bevel gear, a measuring box and a transmission shaft, The measuring box is fixedly arranged on the outer side face of the measuring shell, the first bevel gear is coaxially arranged with the measuring shell and is arranged in the measuring shell, a transmission slot is fixedly arranged on the first bevel gear, the transmission shaft is rotatably arranged in the measuring shell, one end of the transmission shaft is connected with a second bevel gear, the first bevel gear and the second bevel gear are meshed with each other, and th