CN-224214139-U - A indoor test platform for multi-angle coring test

CN224214139UCN 224214139 UCN224214139 UCN 224214139UCN-224214139-U

Abstract

The utility model relates to the technical field of core sampling test, and discloses an indoor test platform for multi-angle coring test, which comprises a power head, a drilling machine base, a lifting frame, a horizontal well simulation device, a simulated core and a traversing hydraulic cylinder, wherein one end of the drilling machine base is rotatably connected with the lifting frame, the power head is slidably connected with the drilling machine base, the horizontal well simulation device comprises a simulation sleeve, a first sleeve clamping mechanism and a second sleeve clamping mechanism, the inner wall of the simulation sleeve is prefabricated according to an actual horizontal well track, the first sleeve clamping mechanism and the second sleeve clamping mechanism are used for stably fixing the simulation sleeve, the center of the inlet end of the simulation sleeve is positioned on the axis of an output shaft of the power head, the simulated core is opposite to the outlet end of the simulation sleeve, the traversing hydraulic cylinder is used for enabling the simulated core to be close to or far away from the outlet end of the simulation sleeve, and the indoor test platform can repeatedly score multi-angle coring working conditions under the complex well track under a laboratory environment and observe or monitor the coring process.

Inventors

CHENG CHENG
Yang Bengao
CHENG XIAOYU
WANG XUAN
MA XINGYING
He Kunchen

Assignees

中煤能源研究院有限责任公司
深圳大学

Dates

Publication Date: 20260508
Application Date: 20250724

Claims (10)

1. The indoor test platform for multi-angle coring test is characterized by comprising a power head, a drilling machine base, a lifting frame, a horizontal well simulation device, a simulated rock core and a transverse moving hydraulic cylinder, wherein one end of the drilling machine base is rotatably connected with the lifting frame, the power head is slidably connected with the drilling machine base, the sliding direction of the power head is parallel to the axis of an output shaft of the power head, the output shaft of the power head is used for outputting rotary power, The horizontal well simulation device comprises a simulation sleeve, a first sleeve clamping mechanism and a second sleeve clamping mechanism, wherein the inner wall of the simulation sleeve is prefabricated according to an actual horizontal well track, the inlet end of the simulation sleeve is clamped on the first sleeve clamping mechanism, the outlet end of the simulation sleeve is clamped on the second sleeve clamping mechanism, the first sleeve clamping mechanism is arranged right in front of the output shaft of the power head and is fixedly connected with the drilling machine base, the center of the inlet end of the simulation sleeve is positioned on the axis of the output shaft of the power head, the second sleeve clamping mechanism is fixedly arranged, the simulation core is just opposite to the outlet end of the simulation sleeve, and the transverse hydraulic cylinder is used for enabling the simulation core to be close to or far away from the outlet end of the simulation sleeve.
2. The indoor test platform for multi-angle coring testing according to claim 1, further comprising a clamping device and a sliding rail, wherein the clamping device is used for clamping and fixing the simulated rock core, the clamping device is in sliding connection with the sliding rail, one end of the traversing hydraulic cylinder is fixedly connected with the clamping device, and the other end of the traversing hydraulic cylinder is fixedly arranged.
3. The indoor test platform for multi-angle coring test according to claim 2, wherein the clamping device comprises a rear shell and a panel, the rear shell and the panel are connected through bolts so that the clamping device is in a hollow cuboid box shape as a whole, the simulated rock core is adapted to be arranged in the clamping device, a through long groove is formed in the panel, and the long groove is adapted to the outlet end of the simulated casing.
4. A laboratory test bench for multi-angle coring testing according to claim 1, wherein said simulation sleeve is made of a transparent material.
5. A laboratory test bench for multi-angle coring testing according to claim 4, further comprising video monitoring means for capturing said simulated intra-casing drilling tool passage.
6. A laboratory test bench for multi-angle coring testing according to claim 1, wherein said simulated casing has a plurality of pressure sensors disposed on its inner wall.
7. A laboratory test bench for multi-angle coring testing according to claim 1, further comprising a propulsion mechanism comprising a propulsion motor and a propulsion screw, said propulsion screw being rotatably connected to said drill base, said power head being threadably connected to said propulsion screw, said propulsion motor being adapted to drive said propulsion screw.
8. The indoor test platform for multi-angle coring testing according to claim 7, further comprising a hydraulic clamping device, wherein the hydraulic clamping device comprises two oppositely arranged hydraulic clamping mechanisms, each hydraulic clamping mechanism comprises a clamping hydraulic cylinder and a clamping shoe, one end of each clamping hydraulic cylinder is fixedly connected with the drill base, the other end of each clamping hydraulic cylinder is fixedly connected with each clamping shoe, each clamping shoe is semicircular, a clamping area is formed between each two clamping shoes, each clamping area is coaxial with an output shaft of the corresponding power head, and each clamping area is arranged between the corresponding power head and the corresponding first sleeve clamping mechanism.
9. A laboratory test bench for multi-angle coring testing according to claim 1, further comprising a tilt cylinder having opposite ends rotatably connected to said crane and rig floor, respectively.
10. The laboratory test bench for multi-angle coring testing according to claim 1, wherein said second sleeve clamping mechanism comprises a clamping seat, a clamping member and a locking mechanism, said clamping seat is fixedly arranged, one end of said clamping member is rotatably connected with said clamping seat, the other end of said clamping member is used for clamping said simulation sleeve, and said locking mechanism is used for fixing said clamping member with said clamping seat.

Description

A indoor test platform for multi-angle coring test Technical Field The utility model relates to the technical field of core sampling test, in particular to an indoor test platform for multi-angle coring test. Background Along with the advancement of oil and gas resource exploration to reservoirs with complex structures, high-track well types such as horizontal wells, multi-branch wells and the like are widely applied, in the well types, the acquisition of cores not only faces the challenge of large curvature of the well, but also needs to finish accurate coring under different attitude angles so as to assist reservoir analysis, lithology identification and mechanical parameter test. The structure and control strategy of the existing core drilling tool are designed mainly by means of numerical simulation or experience estimation, and can not be ensured to core smoothly according to the set coring requirement when the core drilling tool is applied to multi-angle coring under a complex well track. Disclosure of utility model The utility model aims to overcome the defects of the prior art, and provides an indoor test platform for multi-angle coring test, which can simulate multi-angle coring working conditions under a complex well track in a laboratory environment, observe or monitor the coring process, is beneficial to verifying a coring drilling tool and optimally designing the structure and control strategy of the coring drilling tool. The aim of the utility model is realized by the following technical scheme: The utility model provides an indoor test platform for multi-angle coring test, includes unit head, rig base, crane, horizontal well analogue means, simulation rock core and sideslip pneumatic cylinder, the one end of rig base with the rotatable connection of crane, the unit head with rig base slidable connection, the slip direction of unit head is on a parallel with the axis of the output shaft of unit head, the output shaft of unit head is used for exporting rotary power, horizontal well analogue means includes simulation sleeve pipe, first sleeve pipe fixture and second sleeve pipe fixture, simulation sleeve pipe's inner wall is prefabricated according to actual horizontal well orbit, simulation sleeve pipe's entry end centre gripping is in on the first sleeve pipe fixture, simulation sleeve pipe's exit end centre gripping is in with on the second sleeve pipe fixture, first sleeve pipe fixture set up just in front of the output shaft of unit head and with rig base fixed connection, simulation sleeve pipe's entry end center is located the output shaft axis of unit head, the second sleeve pipe fixture is fixed to be set up, simulation rock core is just to simulation sleeve pipe's exit end setting up, simulation sleeve pipe's entry end centre gripping is in the first sleeve pipe fixture of centre gripping is in on the first sleeve pipe fixture of entrance point, and the first sleeve pipe fixture of entrance point is in the first sleeve pipe fixture, and the core pipe fixture is in the second sleeve pipe fixture is used for making the core drilling tool is moved away from to the complex experimental platform of experimental platform, and carries out the complex experimental platform under the complex experimental platform of design, and is favorable to the design to be used for checking the core drilling tool to be moved under the complex to the design and has to the control and has to the experimental platform. Specifically, the device comprises a clamping device and a sliding rail, wherein the clamping device is used for clamping and fixing the simulated rock core, the clamping device is in sliding connection with the sliding rail, one end of the transverse moving hydraulic cylinder is fixedly connected with the clamping device, and the other end of the transverse moving hydraulic cylinder is fixedly arranged. Specifically, clamping device includes backshell and panel, backshell and panel pass through bolted connection makes clamping device is whole to be hollow cuboid box form, the adaptation of simulation rock core sets up in the clamping device, set up the elongated slot that link up on the panel, the elongated slot with the adaptation of simulation sheathed tube exit end. Specifically, the simulation sleeve is made of transparent materials. Specifically, the device also comprises a video monitoring device, wherein the video monitoring device is used for shooting the passing condition of the drilling tool in the simulated casing. Specifically, the inner wall of the simulation sleeve is provided with a plurality of pressure sensors. Specifically, the drilling machine further comprises a propelling mechanism, the propelling mechanism comprises a propelling motor and a propelling screw rod, the propelling screw rod is rotatably connected with the drilling machine base, the power head is in threaded connection with the propelling screw rod, and the propelling motor is used for driving the propelling sc