CN221503264U - Degassing sand-preventing device for oil-gas well - Google Patents
Degassing sand-preventing device for oil-gas well Download PDFInfo
- Publication number
- CN221503264U CN221503264U CN202323639319.2U CN202323639319U CN221503264U CN 221503264 U CN221503264 U CN 221503264U CN 202323639319 U CN202323639319 U CN 202323639319U CN 221503264 U CN221503264 U CN 221503264U
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- CN
- China
- Prior art keywords
- oil
- gas
- sand
- degassing
- pipe
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- 238000007872 degassing Methods 0.000 title claims abstract description 20
- 239000004576 sand Substances 0.000 claims abstract description 38
- 239000007788 liquid Substances 0.000 claims description 25
- 238000001914 filtration Methods 0.000 claims description 21
- 229910052593 corundum Inorganic materials 0.000 claims description 11
- 239000010431 corundum Substances 0.000 claims description 11
- 239000006260 foam Substances 0.000 claims description 6
- 239000011148 porous material Substances 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000002265 prevention Effects 0.000 abstract description 5
- 238000000605 extraction Methods 0.000 abstract description 4
- 238000005299 abrasion Methods 0.000 abstract description 3
- 238000005086 pumping Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 22
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 8
- 239000012530 fluid Substances 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 239000003345 natural gas Substances 0.000 description 4
- 239000003129 oil well Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Degasification And Air Bubble Elimination (AREA)
Abstract
The utility model relates to the field of oil and gas extraction, in particular to an oil and gas well degassing sand prevention device. The degassing and sand preventing device for oil and gas well includes upper joint, outer casing, central pipe and lower joint, and the upper joint is provided with gas exhaust valve, and the outer casing, central pipe and lower joint are connected successively from top to bottom. The utility model can realize the degassing sand prevention of the oil-gas well, and avoid the decrease of the pumping efficiency of the oil pump and the underground mechanical failure caused by the abrasion of the oil pump, the blockage of a production flow passage or the blockage of a pump working part.
Description
Technical Field
The utility model relates to the field of oil and gas extraction, in particular to an oil and gas well degassing sand prevention device.
Background
At present, a beam pumping unit and a matched downhole oil pump are adopted in oil extraction and gas production in known petroleum exploitation, formation fluid is mixed with dissolved natural gas, free natural gas and formation-discharged muddy sand in the exploitation, the free natural gas and formation-discharged muddy sand can influence the normal production of the oil pump, the free natural gas occupies space to reduce the liquid extraction efficiency of the oil pump, and the muddy sand can cause abrasion of the oil pump, block a production runner or block a pump working part to cause downhole mechanical failure.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provides an oil-gas well degassing sand-preventing device which is arranged at the front end of an oil-well pump and used for degassing produced liquid and filtering mud and sand in the produced liquid to prevent the mud and sand from entering the oil-well pump.
The technical scheme of the utility model is as follows:
The degassing and sand preventing device for oil and gas well includes upper joint, outer casing, central pipe and lower joint, and the upper joint is provided with gas exhaust valve, and the outer casing, central pipe and lower joint are connected successively from top to bottom.
The outer shell is provided with a fine pore foam breaking pipe at the gas-liquid inlet.
The outer wall of the inner runner pipe is provided with a supporting ring, and a corundum sand filtering pipe is arranged between the inner runner pipe and the wire winding sand filtering pipe and is fixed by the supporting ring.
According to the utility model, the produced liquid is degassed by utilizing the principle that the gravity difference of the gas and the liquid flows downwards and the gas escapes upwards, the gas which is not removed from the stratum liquid is removed again by utilizing the centrifugal force generated by the gravity difference of the gas and the liquid when the cyclone is performed, so that more efficient degassing treatment is realized, the coarse sand and gravel with the diameter of more than 0.1 millimeter in the stratum liquid are filtered by utilizing the wire-wound sand filtering pipe, the gravel with the diameter of more than 40 micrometers in the stratum liquid is filtered by utilizing the corundum sand filtering pipe, finally, the stratum liquid enters the inner flow passage pipe to move upwards to enter the oil pump for pump lifting, so that degassing sand prevention of an oil well is realized, and the reduction of the pumping efficiency of the oil pump and the abrasion of the oil pump, the blockage of a production flow passage or the pump blocking working part are avoided, so that underground mechanical faults are caused.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
1 Gas-liquid inlet 2 pore foam breaking pipe 3 central pipe 4 outer shell 5 cyclone degassing cavity 6 cyclone vane 7 wire wound sand filtering pipe 8 corundum sand filtering pipe 9 inner runner pipe 10 lower joint 11 gas discharge valve 12 upper joint 13 support ring.
Detailed Description
The degassing sand control device for the oil and gas well comprises an upper joint 12, an outer shell 4, a central tube 3 and a lower joint 10, wherein the upper joint 12 is used for connecting an oil pump, the lower joint 10 is used for connecting a tail pipe, the upper joint 12 is provided with a gas discharge valve 11, the outer shell 4, the central tube 3 and the lower joint 10 are sequentially connected from top to bottom, a gas-liquid inlet 1 is arranged at the upper part of the outer shell 4, the outer shell 4 is provided with a fine pore foam breaking tube 2 at the gas-liquid inlet 1, the gas-liquid inlet 1 and the fine pore foam breaking tube 2 of an inner layer form a defoaming separation cavity, stratum liquid flows into the device from the radial hole of the gas-liquid inlet 1, and bubbles of oil-coated gas are broken through a small-aperture runner of the fine pore foam breaking tube 2 so that the gas is separated from the stratum liquid,
The upper end of the central tube 3 is connected with an upper joint 12, a swirl vane 6 is arranged in the middle of the central tube 3, a swirl degassing cavity 5 is formed by the middle of the central tube 3 and the outer shell 4, stratum liquid flows through the swirl vane 6, gas which is not separated from stratum liquid is separated again by utilizing the gravity difference of gas and liquid when the gravity difference of the gas and liquid is generated by centrifugal force during swirl, more efficient degassing treatment is realized, separated gas flows upwards through a gas discharge valve 11, is discharged to an annular space of an oil sleeve to flow to a wellhead, and is extracted to the ground from a special outlet of the wellhead.
The lower end of the central pipe 3 is connected with an inner runner pipe 9, a supporting ring 13 is arranged on the outer wall of the inner runner pipe 9, a corundum sand filtering pipe 8 is arranged between the inner runner pipe 9 and the wire winding sand filtering pipe 7, the corundum sand filtering pipe 8 is fixed by the supporting ring 13, stratum fluid downwards flows through the wire winding sand filtering pipe 7, gravel with the diameter of more than 0.1 millimeter is filtered and is sunk into a tail pipe arranged below the device through a lower joint 10, when stratum fluid flows through the corundum sand filtering pipe 8, powder sand and silt with the diameter of more than 40 micrometers are filtered and sunk into the annular space of the wire winding sand filtering pipe 7 and the corundum sand filtering pipe 8, stratum fluid filtered by the corundum sand filtering pipe 8 is subjected to degassing and sand filtering treatment, enters the inner runner pipe 9 upwards flows to a liquid outlet joint at the upper end of the device, and enters an oil-well pump arranged at the upper part for lifting, so that degassing sand prevention of an oil-gas well is realized.
Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical scheme of the present utility model and are not limiting; while the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications may be made to the specific embodiments of the present utility model or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the utility model, it is intended to cover the scope of the utility model as claimed.
Claims (3)
1. The utility model provides an oil gas well degasification sand control device, includes top connection, shell body, center tube and lower clutch, its characterized in that: the upper joint is provided with a gas discharge valve, the outer shell, the central tube and the lower joint are sequentially connected from top to bottom, a gas-liquid inlet is formed in the upper portion of the outer shell, the upper end of the central tube is connected with the upper joint, the middle of the central tube is provided with swirl blades, the lower end of the central tube is connected with an inner runner tube, and a corundum sand filtering tube and a wire winding sand filtering tube are sleeved outside the inner runner tube.
2. The oil and gas well degassing sand control device according to claim 1, wherein the outer shell is provided with a fine pore foam breaking pipe at the gas-liquid inlet.
3. The degassing and sand preventing device for an oil and gas well according to claim 1, wherein a supporting ring is arranged on the outer wall of the inner runner pipe, a corundum sand filtering pipe is arranged between the inner runner pipe and the wire winding sand filtering pipe, and the corundum sand filtering pipe is fixed by the supporting ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323639319.2U CN221503264U (en) | 2023-12-29 | 2023-12-29 | Degassing sand-preventing device for oil-gas well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323639319.2U CN221503264U (en) | 2023-12-29 | 2023-12-29 | Degassing sand-preventing device for oil-gas well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221503264U true CN221503264U (en) | 2024-08-09 |
Family
ID=92137679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323639319.2U Active CN221503264U (en) | 2023-12-29 | 2023-12-29 | Degassing sand-preventing device for oil-gas well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221503264U (en) |
-
2023
- 2023-12-29 CN CN202323639319.2U patent/CN221503264U/en active Active
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