CN220687295U - Concentric tube double-flow-passage faucet - Google Patents
Concentric tube double-flow-passage faucet Download PDFInfo
- Publication number
- CN220687295U CN220687295U CN202322354038.6U CN202322354038U CN220687295U CN 220687295 U CN220687295 U CN 220687295U CN 202322354038 U CN202322354038 U CN 202322354038U CN 220687295 U CN220687295 U CN 220687295U
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- Prior art keywords
- concentric
- tube
- sealing
- outer tube
- pipe
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- 238000007789 sealing Methods 0.000 claims abstract description 80
- 239000004576 sand Substances 0.000 claims abstract description 38
- 238000005086 pumping Methods 0.000 claims abstract description 20
- 238000012856 packing Methods 0.000 claims description 23
- 238000003825 pressing Methods 0.000 claims description 14
- 230000009977 dual effect Effects 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 238000004140 cleaning Methods 0.000 abstract description 6
- 239000007788 liquid Substances 0.000 abstract description 5
- 239000012530 fluid Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
Abstract
The utility model discloses a concentric tube double-flow-passage tap, which relates to the technical field of oilfield well operation tools and solves the technical problem of flow inlet and outlet passages of double-tube water jet negative pressure sand pumping (cleaning); comprises a tap main body; the concentric inner pipe penetrates through the center of the faucet main body, and the bottom end of the concentric inner pipe is used for being connected with the inner pipe of the underground sand pumping pipe column; the concentric outer tube is arranged at the bottom of the tap main body, coaxially sleeved on the outer side of the concentric inner tube, and forms an annular space channel between the concentric outer tube and the concentric inner tube, and the bottom end of the concentric outer tube is used for being connected with the outer tube of the underground sand pumping tubular column; a sealing mechanism mounted within the faucet body. The utility model not only solves the problem of liquid flow in and out of the double-pipe water jet negative pressure sand pumping (cleaning) runner, but also ensures the safety and reliability of 360-degree rotation construction, can effectively realize double-pipe water jet negative pressure sand pumping (cleaning) operation construction, saves time, and is economical and practical.
Description
Technical Field
The utility model belongs to the technical field of oilfield well operation tools, and particularly relates to a concentric tube double-flow-passage faucet.
Background
In the exploitation process of oil, gas, water and coalbed methane, sand is discharged or fracturing propping agent is discharged in a large quantity, so that the phenomenon of sand burying production intervals occurs, normal production is affected, follow-up measures are carried out smoothly, and cleaning operation is needed in time so as to ensure smoothness of a shaft.
At present, the prior art comprises: firstly, in the sand washing process of the conventional pen point oil filling pipe, sand washing liquid cannot return to the ground due to serious leakage, and the method for reducing the density of returned liquid by adopting mixed gas not only increases the gas production cost, but also increases the potential safety hazard and the environmental protection treatment difficulty; secondly, the sand pump can only scoop less sand after one operation, and drill sticking accidents occur frequently. In order to solve the above problems, a concentric tube dual-flow faucet is provided.
Disclosure of Invention
The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides a concentric tube double-flow-channel faucet, which solves the problem that a double-tube water jet negative pressure pumping (sand cleaning) liquid flow enters and exits a flow channel.
To achieve the above object, an embodiment according to a first aspect of the present utility model proposes a concentric tube dual flow channel faucet, comprising:
a tap body;
the concentric inner pipe penetrates through the center of the faucet main body, and the bottom end of the concentric inner pipe is used for being connected with the inner pipe of the underground sand pumping pipe column;
the concentric outer tube is arranged at the bottom of the tap main body, coaxially sleeved on the outer side of the concentric inner tube, an annular space channel is formed between the concentric outer tube and the concentric inner tube, and the bottom end of the concentric outer tube is used for being connected with the outer tube of the underground sand pumping tubular column;
the sealing mechanism is arranged in the faucet main body and is used for carrying out external sealing on the concentric inner tube, the sealing mechanism comprises a pressing cap, a packing pressing sleeve and a packing, the pressing cap is in threaded connection with the faucet main body, the packing is sleeved on the outer tube wall of the concentric inner tube, the packing is integrally and hermetically arranged in the faucet main body, and the packing pressing sleeve is arranged at the top of the packing.
As a further technical scheme of the utility model, the sealing mechanism further comprises a sealing ring, an annular opening for installing the sealing ring is formed on the top edge of the packing pressing sleeve, and the outer ring of the sealing ring is attached to the inner wall of the faucet main body.
As a further technical scheme of the utility model, the concentric outer tube comprises an upper outer tube and a lower outer tube, a sealing rotating piece is arranged between the upper outer tube and the lower outer tube, and the sealing rotating piece is used for enabling the lower outer tube to rotate positively and negatively.
As a further technical scheme of the utility model, the sealing rotating piece comprises a rotating sleeve, a sealing bearing, a sealing body and a sealing cover, wherein the rotating sleeve is sleeved on the outer pipe wall of the lower outer pipe, the rotating sleeve is rotationally connected with the lower outer pipe through the sealing bearing, the sealing cover is fixedly sleeved on the outer pipe wall of the upper outer pipe, the sealing cover is fixedly arranged at the top of the rotating sleeve, and the sealing body is arranged in the sealing cover.
As a further technical scheme of the utility model, the sealing body is of an annular structure, and the outer ring of the sealing body is fixedly connected with the inner wall of the sealing cover.
As a further technical scheme of the utility model, a branch pipe channel is fixedly arranged at the pipe wall of the upper outer pipe, and the branch pipe channel is communicated with the annular space channel.
Compared with the prior art, the utility model has the beneficial effects that:
1. in the utility model, the concentric inner pipe is connected with the inner pipe of the underground sand pumping pipe column, the sealing mechanism ensures the external sealing problem of the concentric inner pipe, the concentric outer pipe is connected with the outer pipe of the underground sand pumping pipe column, so that the pump truck provides power fluid for doing work on the jet pump by the concentric inner pipe during construction, the pumped mud sand and the like are mixed with the produced fluid to flow back up to the ground sand basin through the annular space channel between the concentric inner pipe and the concentric outer pipe, the power fluid can enter the jet pump for doing work by the annular space channel, the pumped mud sand and the like are mixed with the produced fluid to flow back up through the concentric inner pipe and flow back up to the ground sand basin, thereby effectively realizing the double-pipe water jet negative pressure sand pumping (cleaning) operation construction, saving time and being economical and practical.
2. According to the utility model, the sealing rotation piece can ensure the tightness between the upper pipe body and the lower pipe body, and ensure that the upper pipe body can be kept motionless and the lower pipe body can rotate forward and backward at 360 degrees at random during rotation operation, so that the upper pipe body is convenient to assemble and disassemble, the construction efficiency is improved, the well repairing time is saved, and the operation is easy.
Drawings
FIG. 1 is a schematic diagram of the structure of the concentric inner tube of the present utility model;
FIG. 2 is a schematic view of the structure of the annular space channel of the present utility model when liquid is fed.
In the figure: 1. a tap body; 2. a concentric inner tube; 3. a concentric outer tube; 31. an upper outer tube; 32. a lower outer tube; 4. an annular space channel; 5. a sealing mechanism; 51. pressing the cap; 52. packing sleeve pressing; 53. packing; 54. a seal ring; 6. sealing the rotating member; 61. a rotating sleeve; 62. sealing the bearing; 63. a sealing body; 64. sealing cover; 7. branch pipe channels.
Detailed Description
The technical solutions of the present utility model will be clearly and completely described in connection with the embodiments, and it is obvious that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1-2, the concentric tube double-flow-passage faucet comprises a faucet main body 1, a concentric inner tube 2, a concentric outer tube 3 and a sealing mechanism 5, wherein the concentric inner tube 2 passes through the center of the faucet main body 1, the bottom end of the concentric inner tube 2 is used for being connected with the inner tube of a downhole sand pumping pipe column, the concentric outer tube 3 is arranged at the bottom of the faucet main body 1 and coaxially sleeved on the outer side of the concentric inner tube 2, an annular space channel 4 is formed between the concentric outer tube 3 and the concentric inner tube 2, so that power fluid provided by a pump truck on a well is convenient to enter the inner tube of the downhole sand pumping pipe column from the concentric inner tube 2 to apply work to a jet pump, pumped out muddy sand and the like to be mixed with output fluid and returned to a ground sand basin through the annular space channel 4, pumped out muddy sand and the like to be mixed with output fluid to be returned to the ground sand basin, and the bottom end of the concentric outer tube 3 is used for being connected with the outer tube of the downhole sand pumping pipe column.
The sealing mechanism 5 is arranged in the faucet main body 1, the sealing mechanism 5 is used for carrying out external sealing on the concentric inner pipe 2, the sealing mechanism 5 comprises a pressing cap 51, a packing pressing sleeve 52 and a packing 53, the pressing cap 51 is in threaded connection with the faucet main body 1, the packing 53 is sleeved on the outer pipe wall of the concentric inner pipe 2, the packing 53 is integrally and hermetically arranged in the faucet main body 1, the external sealing on the concentric inner pipe 2 is convenient, the tightness between the outer pipe wall of the concentric inner pipe 2 and the inner wall of the faucet main body 1 is ensured, the packing pressing sleeve 52 is arranged at the top of the packing 53, the sealing mechanism 5 further comprises a sealing ring 54, an annular opening for the installation of the sealing ring 54 is formed in the top edge of the packing pressing sleeve 52, the outer ring of the sealing ring 54 is attached to the inner wall of the faucet main body 1, the sealing effect is further improved conveniently, and multiple sealing is realized.
The concentric outer tube 3 comprises an upper outer tube 31 and a lower outer tube 32, a branch tube channel 7 is fixedly arranged at the tube wall of the upper outer tube 31, the branch tube channel 7 is communicated with the annular space channel 4, a sealing rotating piece 6 is arranged between the upper outer tube 31 and the lower outer tube 32, the sealing rotating piece 6 is used for enabling the lower outer tube 32 to rotate positively and negatively, and the sealing rotating piece 6 comprises a rotating sleeve 61, a sealing bearing 62, a sealing body 63 and a sealing cover 64;
the rotating sleeve 61 is sleeved on the outer pipe wall of the lower outer pipe 32, the rotating sleeve 61 is rotationally connected with the lower outer pipe 32 through the sealing bearing 62, the lower outer pipe 32 can rotate, the sealing cover 64 is fixedly sleeved on the outer pipe wall of the upper outer pipe 31, the sealing cover 64 is fixedly arranged at the top of the rotating sleeve 61, the sealing body 63 is arranged in the sealing cover 64, the sealing body 63 is of an annular structure, and the outer ring of the sealing body 63 is fixedly connected with the inner wall of the sealing cover 64, so that the sealing effect is ensured.
The working principle of the utility model is as follows: the bottom end of the concentric inner pipe 2 is connected with the inner pipe of the underground sand pumping pipe column, the lower outer pipe 32 of the concentric outer pipe 3 is connected with the outer pipe of the underground sand pumping pipe column, and during construction, power fluid provided by an uphole pump truck can enter the inner pipe of the underground sand pumping pipe column from the concentric inner pipe 2 to apply work to a jet pump, mud sand and the like are pumped to be mixed with output fluid and returned upwards through an annular space 4 channel between the concentric inner pipe 2 and the concentric outer pipe 3, and finally discharged to a ground sand basin through a branch pipe channel 7, the power fluid can enter the annular space 4 channel to apply work to the jet pump through the branch pipe channel 7, the pumped mud sand and the like are mixed with the output fluid and returned upwards through the concentric inner pipe 2 and discharged to the ground sand basin, and the sealing mechanism 1 solves the problem of external sealing of the concentric pipe 2, so that the sealing performance between the outer pipe wall of the concentric inner pipe 2 and the inner wall of the tap main body 1 is ensured, and the construction of double-pipe water jet negative pressure sand pumping (clear) operation is effectively realized, and time is saved, and economical and practical; the sealing rotating piece 6 not only can ensure the tightness between the upper pipe body 31 and the lower pipe body 32, but also can ensure that the upper pipe body 31 can keep motionless and the lower pipe body 32 can rotate forward and backward at any 360 degrees during the rotation operation, thereby facilitating the disassembly and assembly thereof, not only being beneficial to improving the construction efficiency and saving the workover time, but also being easy to operate.
The above embodiments are only for illustrating the technical method of the present utility model and not for limiting the same, and it should be understood by those skilled in the art that the technical method of the present utility model may be modified or substituted without departing from the spirit and scope of the technical method of the present utility model.
Claims (6)
1. A concentric tube dual flow channel faucet, comprising:
a tap body (1);
a concentric inner pipe (2) passing through the center of the tap main body (1), wherein the bottom end of the concentric inner pipe (2) is used for being connected with the inner pipe of a downhole sand pumping pipe column;
the concentric outer tube (3) is arranged at the bottom of the tap main body (1) and is coaxially sleeved on the outer side of the concentric inner tube (2), an annular space channel (4) is formed between the concentric outer tube (3) and the concentric inner tube (2), and the bottom end of the concentric outer tube (3) is used for being connected with the outer tube of the underground sand pumping tubular column;
sealing mechanism (5), it is installed in tap main part (1), sealing mechanism (5) are used for carrying out external seal to concentric inner tube (2), sealing mechanism (5) are including pressing cap (51), packing press cover (52) and packing (53), press cap (51) and tap main part (1) threaded connection, packing (53) suit is on the outer pipe wall of concentric inner tube (2), and packing (53) whole sealing installation is in tap main part (1), packing press cover (52) are installed at the top of packing (53).
2. The concentric tube double-flow-channel faucet according to claim 1, wherein the sealing mechanism (5) further comprises a sealing ring (54), an annular opening for installing the sealing ring (54) is formed on the top edge of the packing pressing sleeve (52), and the outer ring of the sealing ring (54) is attached to the inner wall of the faucet main body (1).
3. A concentric tube dual flow tap as claimed in claim 1, characterised in that the concentric outer tube (3) comprises an upper outer tube (31) and a lower outer tube (32), a sealing rotor (6) being mounted between the upper outer tube (31) and the lower outer tube (32), the sealing rotor (6) being adapted to rotate the lower outer tube (32) in opposite directions.
4. A concentric tube dual flow tap as claimed in claim 3, characterised in that the seal rotating member (6) comprises a rotating sleeve (61), a seal bearing (62), a sealing body (63) and a sealing cover (64), the rotating sleeve (61) is sleeved on the outer tube wall of the lower outer tube (32), the rotating sleeve (61) is rotationally connected with the lower outer tube (32) through the seal bearing (62), the sealing cover (64) is fixedly sleeved on the outer tube wall of the upper outer tube (31), the sealing cover (64) is fixedly mounted on the top of the rotating sleeve (61), and the sealing body (63) is mounted in the sealing cover (64).
5. The concentric tube dual flow faucet of claim 4, wherein the sealing body (63) is of annular configuration, and an outer ring of the sealing body (63) is fixedly connected to an inner wall of the sealing cap (64).
6. A concentric tube dual flow tap as claimed in claim 3, characterised in that the wall of the upper outer tube (31) is fixedly provided with a branch tube passage (7), and that the branch tube passage (7) communicates with the annular space passage (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322354038.6U CN220687295U (en) | 2023-08-31 | 2023-08-31 | Concentric tube double-flow-passage faucet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322354038.6U CN220687295U (en) | 2023-08-31 | 2023-08-31 | Concentric tube double-flow-passage faucet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220687295U true CN220687295U (en) | 2024-03-29 |
Family
ID=90404848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322354038.6U Active CN220687295U (en) | 2023-08-31 | 2023-08-31 | Concentric tube double-flow-passage faucet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220687295U (en) |
-
2023
- 2023-08-31 CN CN202322354038.6U patent/CN220687295U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |