CN217950318U

CN217950318U - Packer for petroleum pipe airtight detection

Info

Publication number: CN217950318U
Application number: CN202221547570.9U
Authority: CN
Inventors: 陆华飞; 李荣明; 孙昌平; 李晓彬
Original assignee: Nantong Huaye Petroleum Machinery Co ltd
Current assignee: Nantong Huaye Petroleum Machinery Co ltd
Priority date: 2022-06-21
Filing date: 2022-06-21
Publication date: 2022-12-02
Anticipated expiration: 2032-06-21

Abstract

The utility model discloses a packer for airtight detection of petroleum pipe, including the packer main part, packer main part both ends all are equipped with the connector, packer main part top one end surface is equipped with the detection piece, packer main part inside is equipped with the inner tube around encircling, the inner tube with be equipped with the packing clearance between the packer main part, the inside packing in packing clearance has protective gas, the detection piece bottom is connected with the gauge rod. The utility model discloses a be equipped with the packer main part, inner tube and detection piece, the inside inert gas that fills in the packing clearance between inner tube and packer main part, rethread detection piece extends the measuring stick and gets into the packing clearance and carries out the real-time detection control to inside gas content, can judge whether gaseous reducing, thereby judge whether the condition of leaking appears in the inner tube, the packer main part is protected and is spacing to the inner tube in the outside simultaneously, avoid the inner tube too much to cause the damage to lead to leaking at the during operation friction, influence holistic sealing work.

Description

Packer for petroleum pipe airtight detection

Technical Field

The utility model relates to an oil development technical field, more specifically say, the utility model relates to a packer that is used for airtight detection of petroleum pipe.

Background

The packer refers to a downhole tool which has an elastic sealing element, and thereby seals annular spaces between pipe columns and well bores of various sizes and between the pipe columns and isolates a production zone to control production (injection) fluid and protect the casing, along with the increasing consumption of conventional oil and gas reservoirs and mineral resources, the exploitation and development of unconventional oil and gas reservoirs such as deeply buried oil and gas reservoirs, coal bed gas, shale gas and the like and deep mineral resources are increasingly important and urgent, in the oil field exploitation process, a plurality of devices are required, and the application of the packer is an essential part of oil field exploitation equipment.

The packer is located between an oil pipe and a sleeve, sealing checking liquid with certain pressure is injected during sealing checking, whether the sealing is good or not is judged by observing whether overflow exists in a liquid outlet hole of an upper joint, however, common packers are insufficient in overall protection, the common packers are easy to rub with the inner wall of the pipeline when being filled with the sealing checking liquid to cause leakage, overall detection parameters are not compared and referenced, and multiple detections of different positions are needed, so that the packer for petroleum pipe air sealing detection is necessary to be invented.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above-mentioned defects of the prior art, the embodiments of the present invention provide a packer for petroleum pipe gas sealing detection.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a packer for airtight detection of petroleum pipe, includes the packer main part, packer main part both ends all are equipped with the connector, packer main part top one end surface is equipped with the detection piece, packer main part inside is equipped with the inner tube around encircling, the inner tube with be equipped with between the packer main part and fill the clearance, it has protective gas to fill the inside packing in clearance, the detection piece bottom is connected with the measuring rod, the measuring rod runs through the packer main part and extend to inside the packing clearance, inside sleeve pipe and the detection section of thick bamboo of being equipped with of inner tube, detection section of thick bamboo top and bottom all are equipped with the connecting cylinder, the connecting cylinder outside is equipped with the pipe connection section of thick bamboo, the pipe connection section of thick bamboo with the sleeve pipe intercommunication, the connecting cylinder with the pipe connection section of thick bamboo with all be equipped with slow pressing piece between the detection section of thick bamboo, slow pressing piece includes slow pressing inner ring and elastic bead.

In a preferred embodiment, the two connecting heads are of the same size and the outer side surfaces are provided with connecting notches.

In a preferred embodiment, a liquid injection pipe is arranged between the sleeve and the inner pipe, the liquid injection pipe sequentially penetrates through the pipeline connecting cylinder and the connecting cylinder, and the liquid injection pipe is communicated with the connecting cylinder and the pipeline connecting cylinder through electromagnetic valves.

In a preferred embodiment, a suspension block is arranged inside the liquid injection pipe and used for detecting the position.

In a preferred embodiment, two ends of the connecting cylinder are respectively communicated with the pipeline connecting cylinder and the detection cylinder, and the connecting part is surrounded by a pressure relief part.

In a preferred embodiment, the pressure-relieving inner ring is arranged around the detection cylinder, the connection cylinder and the pipeline connection cylinder, a positioning ring is further arranged outside the pressure-relieving piece, and elastic beads are uniformly arranged between the pressure-relieving inner ring and the positioning ring.

In a preferred embodiment, the number of the elastic beads is set to be plural, and the pressure-relief inner ring and the elastic beads are made of elastic materials.

In a preferred embodiment, the sleeve protrudes out of the inner tube and is disposed inside the connector, and positioning rods are uniformly disposed between the connector and the inner tube.

The utility model discloses a technological effect and advantage:

1. the utility model discloses a through being equipped with packer main part, inner tube and detection piece, pack inert gas in the packing clearance between inner tube and packer main part, rethread detection piece extension test rod gets into to pack the clearance and carries out real-time detection control to inside gas content, can judge whether gas reduces to judge whether the condition of inner tube leakage appears, the packer main part protects and spacing inner tube in the outside simultaneously, avoids the inner tube to rub too much at the during operation and causes the damage and lead to the leakage, influences holistic sealing work;

2. through being equipped with and detecting a section of thick bamboo, connecting cylinder and slow pressing spare, two sets of detection section of thick bamboo and connecting cylinder can detect respectively and judge under the height of difference according to the demand, form effectual contrast parameter, thereby whether the connection between the tubular column of the position of difference of judgement that can be more comprehensive is intact, the setting of slow pressing spare can play the work of cushion adjustment when injecting into the test sealing liquid in addition, when avoiding detecting the inspection peak value under the inside circumstances of being full of oil body of a section of thick bamboo and connecting cylinder, whole high and damage is pressed, play the work to equipment protection.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a cross-sectional view of the overall structure of the present invention.

Fig. 3 is a schematic view of the internal structure of the inner tube of the present invention.

Fig. 4 is a schematic structural view of the pressure changing member of the present invention.

The reference signs are: 1 packer main part, 11 connectors, 12 detection pieces, 2 inner pipes, 21 filling gaps, 3 sleeves, 4 detection barrels, 5 connecting barrels, 6 pipeline connecting barrels, 7 pressure relief pieces, 71 pressure relief inner rings and 72 elastic beads.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

The packer for petroleum pipe airtight detection comprises a packer main body 1, connectors 11 are arranged at two ends of the packer main body 1, a detection piece 12 is arranged on one end surface of the top of the packer main body 1, an inner pipe 2 is arranged in the packer main body 1 in an encircling mode, a filling gap 21 is formed between the inner pipe 2 and the packer main body 1, protective gas is filled in the filling gap 21, the bottom of the detection piece 12 is connected with a detection rod, the detection rod penetrates through the packer main body 1 and extends into the filling gap 21, a sleeve pipe 3 and a detection barrel 4 are arranged in the inner pipe 2, connecting barrels 5 are arranged at the top and the bottom of the detection barrel 4, a pipeline connecting barrel 6 is arranged outside the connecting barrel 5, the pipeline connecting barrel 6 is communicated with the sleeve pipe 3, pressure buffering pieces 7 are arranged between the connecting barrel 5 and the pipeline connecting barrel 6 and between the detection barrel 4, and the pressure buffering pieces 7 comprise pressure buffering inner rings 71 and elastic beads 72.

The two connectors 11 have the same size and are provided with connecting notches on the outer side surfaces.

Be equipped with between sleeve pipe 3 and the inner tube 2 and annotate the liquid pipe, annotate the liquid pipe and run through pipeline connecting cylinder 6 and connecting cylinder 5 in proper order, annotate between liquid pipe and connecting cylinder 5 and the pipeline connecting cylinder 6 through the solenoid valve intercommunication, by annotate the liquid pipe and pour into the different pipelines that test the interior liquid entering of inner tube 2.

The liquid injection pipe is internally provided with a suspension block, the suspension block is used for detecting the position of the liquid injection pipe, and the suspension block can judge whether the seal checking liquid leaks or not.

Two ends of the connecting cylinder 5 are respectively communicated with the pipeline connecting cylinder 6 and the detection cylinder 4, the connecting part is surrounded by a buffer pressing piece 7, and the buffer adjustment work can be performed when the sealing liquid is tested by injecting the pressing piece 7.

The pressure-relieving inner ring 71 surrounds the detection cylinder 4, the connecting cylinder 5 and the pipeline connecting cylinder 6, the outer side of the pressure-relieving piece 7 is also provided with a positioning ring, and elastic beads 72 are uniformly arranged between the pressure-relieving inner ring 71 and the positioning ring.

Elastic bead 72 quantity sets up to a plurality ofly, and pressure-relieving inner ring 71 and elastic bead 72 are made by elastic material, when avoiding detecting the inspection peak value under the inside condition that is full of the oil body of a section of thick bamboo 4 and connecting cylinder 5, whole pressurized too high and damage plays the work to equipment protection.

The sleeve 3 protrudes out of the inner tube 2 and is arranged at the inner side of the connector 11, and positioning rods are uniformly arranged between the connector 11 and the inner tube 2.

The utility model discloses theory of operation:

referring to the description figures 1, 2 and 3: inert gas is filled in the filling gap 21 between the inner pipe 2 and the packer main body 1, then the detection piece 12 extends the detection rod to enter the filling gap 21 to perform real-time detection and monitoring on the content of the gas in the inner part, whether the gas is reduced or not can be judged, so that whether the inner pipe 2 leaks or not is judged, meanwhile, the packer main body 1 protects and limits the inner pipe 2 on the outer side, and the phenomenon that the inner pipe 2 is damaged due to excessive friction during working to cause leakage and influence on the whole sealing work is avoided;

referring to the description figures 1, 2 and 4: two sets of detection section of thick bamboo 4 and connecting cylinder 5 can detect respectively and judge under the height of difference according to the demand, form effectual contrast parameter, thereby can be more comprehensive judge whether the connection between the tubular column of position of difference is intact, in addition the setting of slow pressing piece 7 can play the work of buffer adjustment when pouring into the test and sealing liquid, when avoiding detecting the inspection peak value under the inside condition of being full of the oil body of a section of thick bamboo 4 and connecting cylinder 5, wholly the high and damage of pressurized, play the work to equipment protection.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," "connecting," and "connecting" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be directly connected, and "upper," "lower," "left," and "right" are only used to indicate relative positional relationships, and when the absolute position of the object to be described is changed, the relative positional relationships may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the foregoing is illustrative of the preferred embodiments of the present invention, and is not to be construed as limiting the invention, and any modifications, equivalent alterations, improvements and the like made within the spirit and principle of the invention are intended to be included within the scope of the invention.

Claims

1. A packer for petroleum pipe gas seal detection comprises a packer main body (1), and is characterized in that: packer main part (1) both ends all are equipped with connector (11), packer main part (1) top one end surface is equipped with detection piece (12), packer main part (1) inside is around being equipped with inner tube (2), inner tube (2) with be equipped with packing clearance (21) between packer main part (1), packing clearance (21) inside is filled with protective gas, detection piece (12) bottom is connected with the detection pole, the detection pole runs through packer main part (1) and extends to inside packing clearance (21), inner tube (2) inside is equipped with sleeve pipe (3) and detects a section of thick bamboo (4), it all is equipped with connecting cylinder (5) to detect section of thick bamboo (4) top and bottom, connecting cylinder (5) outside is equipped with pipe connecting cylinder (6), pipe connecting cylinder (6) with sleeve pipe (3) intercommunication, connecting cylinder (5) with pipe connecting cylinder (6) with all be equipped with slow pressing piece (7) between detecting a section of thick bamboo (4), slow pressing piece (7) are including slow pressing inner ring (71) and elasticity pearl (72).

2. The packer for petroleum pipe gas seal detection as recited in claim 1, wherein: two the connector (11) size is the same and the outside surface is equipped with the connection notch.

3. The packer for petroleum pipe gas seal detection as recited in claim 1, wherein: a liquid injection pipe is arranged between the sleeve (3) and the inner pipe (2), the liquid injection pipe sequentially penetrates through the pipeline connecting cylinder (6) and the connecting cylinder (5), and the liquid injection pipe is communicated with the connecting cylinder (5) and the pipeline connecting cylinder (6) through electromagnetic valves.

4. The packer for petroleum pipe hermetic seal detection as recited in claim 3, wherein: the liquid injection pipe is internally provided with a suspension block, and the suspension block is used for detecting the position of the liquid injection pipe.

5. The packer for petroleum pipe gas seal detection as recited in claim 1, wherein: two ends of the connecting cylinder (5) are respectively communicated with the pipeline connecting cylinder (6) and the detection cylinder (4), and a pressure buffering part (7) is arranged at the connecting part in a surrounding mode.

6. The packer for petroleum pipe hermetic seal detection as recited in claim 1, wherein: the pressure-relieving inner ring (71) surrounds the detection barrel (4), the connecting barrel (5) and the pipeline connecting barrel (6), a positioning ring is further arranged on the outer side of the pressure-relieving piece (7), and elastic beads (72) are uniformly arranged between the pressure-relieving inner ring (71) and the positioning ring.

7. The packer for petroleum pipe hermetic seal detection as recited in claim 6, wherein: the number of the elastic beads (72) is set to be a plurality, and the pressure-relieving inner ring (71) and the elastic beads (72) are both made of elastic materials.

8. The packer for petroleum pipe hermetic seal detection as recited in claim 1, wherein: the sleeve (3) protrudes from the inner tube (2) and is arranged on the inner side of the connector (11), and positioning rods are uniformly arranged between the connector (11) and the inner tube (2).