CN-224214151-U - Bridge plug ball-throwing collision simulation test device

CN224214151UCN 224214151 UCN224214151 UCN 224214151UCN-224214151-U

Abstract

The utility model relates to the technical field of petroleum drilling and production, in particular to a bridge plug ball throwing and bumping compression testing device which comprises a liquid storage device, a fracturing ball throwing pipe fitting and a bridge plug seat sealing pipe fitting, wherein the liquid storage device is used for storing pumping simulation liquid for testing, the fracturing ball throwing pipe fitting is used for throwing test fracturing balls, one end of the fracturing ball throwing pipe fitting is connected with a pump through a pipeline, the bridge plug seat sealing pipe fitting is used for seat sealing of a testing bridge plug, one end of the bridge plug seat sealing pipe fitting is connected with the other end of the fracturing ball throwing pipe fitting through a pipeline, and the other end of the bridge plug seat sealing pipe fitting is connected with a liquid inlet through a pipeline. When the displacement in the pipeline reaches a set value, the fracturing ball is thrown out through the fracturing ball throwing pipe fitting, the fracturing ball is seated on the bridge plug, at the moment, the internal channel of the bridge plug is cut off, fluid in the pipeline is impacted instantaneously, the pressure in the pipeline between the bridge plug and the pump rises, and the pressure and the flow under the collision pressure state can be read through the pressure gauge and the first flow gauge on the pipeline.

Inventors

QIU CHENGSONG
ZHENG WEI

Assignees

成都维泰油气能源技术有限公司

Dates

Publication Date: 20260508
Application Date: 20250627

Claims (10)

1. The device is characterized by comprising a liquid storage device, a fracturing ball throwing pipe fitting and a bridge plug seat sealing pipe fitting; The liquid storage device is used for storing pumping simulation liquid for experiments and is provided with a liquid outlet and a liquid inlet, and a pump is arranged at the liquid outlet; The fracturing ball throwing pipe fitting is used for throwing test fracturing balls, one end of the fracturing ball throwing pipe fitting is connected with the pump through a pipeline, and a pressure gauge and a first flowmeter for measuring the pressure and the flow of pumping simulation liquid in the pipeline are further arranged on the pipeline between the fracturing ball throwing pipe fitting and the pump; the bridge plug seat seal pipe fitting is used for seat sealing the test bridge plug, one end of the bridge plug seat seal pipe fitting is connected with the other end of the fracturing ball throwing pipe fitting through a pipeline, and the other end of the bridge plug seat seal pipe fitting is connected with the liquid inlet through a pipeline.
2. The bridge plug ball-throwing collision simulation test device according to claim 1, wherein a baffle ring and a fracturing ball are arranged in the fracturing ball throwing pipe fitting, the baffle ring is a pressure trigger passing mechanism, and when the pressure of the fracturing ball to the baffle ring exceeds a threshold value, the baffle ring deforms to enable the fracturing ball to pass through the baffle ring.
3. The bridge plug ball-throwing impact simulation test device is characterized by comprising a ring body and a plurality of elastic pieces, wherein the middle part of the ring body is provided with an aperture through which a fracturing ball passes, the ring body is fixedly connected with the inner wall of a fracturing ball throwing pipe fitting, a plurality of fluid through holes for pumping simulation liquid flow are formed in the ring body, one ends of the elastic pieces are connected with the ring body, the aperture formed by the end parts of the other ends of the elastic pieces is smaller than the diameter of the fracturing ball, and when the pressure of the fracturing ball to the fracturing ball exceeds a threshold value, the elastic pieces are bent and deformed, and the fracturing ball passes through the fracturing ball.
4. The bridge plug ball striking simulation test device according to claim 1, wherein a double-layer valve channel is arranged on the side wall of the fracturing ball throwing pipe fitting, the double-layer valve channel comprises a main channel communicated with the fracturing ball throwing pipe fitting, the inner diameter of the main channel is larger than the outer diameter of the fracturing ball, a first control valve and a second control valve are arranged on the main channel, and the distance between the first control valve and the second control valve is larger than the outer diameter of the fracturing ball.
5. The bridge plug ball striking simulation test device according to claim 1, further comprising a perforation channel simulator pipe fitting, wherein the perforation channel simulator pipe fitting is arranged on a pipeline at one end of the fracturing ball striking pipe fitting, and a perforation channel simulation structure is arranged on the pipe wall of the perforation channel simulator pipe fitting.
6. The bridge plug ball striking simulation test device according to claim 5, wherein the perforation channel simulation structure comprises a plurality of through holes arranged on the pipe wall of the perforation channel simulator pipe fitting, each through hole is provided with an overflow valve, and a plurality of overflow valves are connected with the liquid storage device through pipelines.
7. The bridge plug ball striking simulation test apparatus of claim 6, wherein the relief valve is a threshold adjustable relief valve.
8. The bridge plug pitching impact simulation test device according to any one of claims 1 to 7, wherein a transparent visual pipe is further arranged on a pipeline at the other end of the bridge plug seat pipe.
9. The bridge plug ball striking simulation test device according to claim 8, wherein a second flowmeter is further arranged between the transparent visual pipe fitting and the liquid inlet.
10. A bridge plug ball-casting impact simulation test apparatus according to any one of claims 1 to 7, wherein a safety control line is provided between the pipeline between the fracturing ball-casting pipe and the pump and the reservoir.

Description

Bridge plug ball-throwing collision simulation test device Technical Field The utility model relates to the technical field of petroleum and natural gas exploitation equipment, in particular to a bridge plug ball-throwing collision simulation test device. Background After the bridge plug is sealed in a seat in the well, the tubular column is lifted up to complete perforation, the tubular column is lifted out, then a fracturing ball is thrown, the ball is seated on the bridge plug to seal an internal passage of the bridge plug, the pressure of the well head rises, the pressure is called as bumping pressure, and the quality of the bridge plug seat is indirectly judged on site according to the existence of bumping pressure and the bumping pressure value. In actual petroleum fracturing operation, the setting performance and the bumping pressure condition of the bridge plug are directly related to the fracturing effect and the productivity of the oil and gas well. However, the current research on the relation between the quality of the bridge plug seat and the collision pressure is not deep enough, and the theoretical support and the effective test method of the system are lacking. The traditional test mode can not accurately simulate the complex working condition on site, so that the evaluation of the bridge plug performance has certain limitation, and the development and application of the bridge plug technology are affected. Therefore, the development of the test device capable of truly simulating the ball striking and pressing condition of the bridge plug has important practical significance. Disclosure of utility model The utility model provides a bridge plug ball-throwing collision simulation test device for solving the technical problems. The technical scheme for solving the technical problems is as follows: A bridge plug ball-throwing collision simulation test device comprises a liquid storage device, a fracturing ball throwing pipe fitting and a bridge plug seat sealing pipe fitting; The liquid storage device is used for storing pumping simulation liquid for experiments and is provided with a liquid outlet and a liquid inlet, and a pump is arranged at the liquid outlet; The fracturing ball throwing pipe fitting is used for throwing test fracturing balls, one end of the fracturing ball throwing pipe fitting is connected with the pump through a pipeline, and a pressure gauge and a first flowmeter for measuring the pressure and the flow of pumping simulation liquid in the pipeline are further arranged on the pipeline between the fracturing ball throwing pipe fitting and the pump; the bridge plug seat seal pipe fitting is used for seat sealing the test bridge plug, one end of the bridge plug seat seal pipe fitting is connected with the other end of the fracturing ball throwing pipe fitting through a pipeline, and the other end of the bridge plug seat seal pipe fitting is connected with the liquid inlet through a pipeline. The working principle and the beneficial effects of the utility model are that when the simulation test is carried out, pumping simulation liquid is injected into the liquid storage device, the bridge plug is sealed in the bridge plug seat sealing pipe piece, the fracturing ball throwing pipe piece, the pump, the pressure gauge and the first flowmeter are connected through pipelines and communicated with the liquid inlet and the liquid outlet of the liquid storage device. When the test is carried out, the pump is started, the pumping simulation liquid circulates to the liquid storage device through the pipeline through the fracturing ball throwing pipe fitting and the bridge plug seat sealing pipe fitting, when the displacement in the pipeline reaches a set value, the fracturing ball is thrown out through the fracturing ball throwing pipe fitting, the fracturing ball is seated on the bridge plug, at the moment, the internal channel of the bridge plug is cut off, the fluid in the pipeline is impacted instantaneously, the pressure in the pipeline between the bridge plug and the pump rises, and the pressure and the flow in the collision state at the moment can be read through the pressure gauge and the first flow gauge on the pipeline. On the basis of the technical scheme, the utility model can be improved as follows. Further, a baffle ring and a fracturing ball are arranged in the fracturing ball throwing pipe fitting, the baffle ring is a pressure triggering passing mechanism, and when the pressure of the fracturing ball to the baffle ring exceeds a threshold value, the baffle ring deforms to enable the fracturing ball to pass through the baffle ring. The further scheme has the beneficial effects that the fracturing ball is preset in the fracturing ball throwing pipe fitting, the fracturing ball in the pipeline is pushed by the pumping simulation liquid, so that the fracturing ball can generate pressure on the baffle ring, when the pressure of the fracturing ball on the baffle ring exceeds