CN214697780U - Self-adjusting pump rod blowout prevention box for coal bed gas - Google Patents
Self-adjusting pump rod blowout prevention box for coal bed gas Download PDFInfo
- Publication number
- CN214697780U CN214697780U CN202120657266.9U CN202120657266U CN214697780U CN 214697780 U CN214697780 U CN 214697780U CN 202120657266 U CN202120657266 U CN 202120657266U CN 214697780 U CN214697780 U CN 214697780U
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- Prior art keywords
- box body
- blowout prevention
- ring
- prevention box
- coal bed
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- 239000003245 coal Substances 0.000 title claims abstract description 14
- 230000002265 prevention Effects 0.000 title claims description 34
- 238000012856 packing Methods 0.000 claims abstract description 37
- 238000003825 pressing Methods 0.000 claims abstract description 24
- 238000002788 crimping Methods 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 58
- 230000006835 compression Effects 0.000 claims description 21
- 238000007906 compression Methods 0.000 claims description 21
- 239000011324 bead Substances 0.000 claims description 6
- 238000007731 hot pressing Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 9
- 238000002347 injection Methods 0.000 abstract description 5
- 239000007924 injection Substances 0.000 abstract description 5
- 239000010687 lubricating oil Substances 0.000 abstract description 4
- 238000005461 lubrication Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 11
- 238000005086 pumping Methods 0.000 description 8
- 238000005299 abrasion Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000010779 crude oil Substances 0.000 description 2
- 230000003203 everyday effect Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The utility model discloses a coal bed gas self-adjusting pump pole prevents spouting box, including preventing spouting the box body, prevent being equipped with on the box body and press cap one, prevent spouting the box body and be equipped with sealed packing with the well piece that presses cap one, sealed packing on be equipped with the clamping ring, the up end of clamping ring and the inner chamber up end crimping of pressing cap one. The utility model has the advantages that: through setting up multiple seal structure, hoisting device's sealed effect, will prevent spouting the inner chamber of box body and sealed packing design is toper, make sealed packing can compensate by oneself to wearing and tearing department, in order to realize its sealed effect originally, guarantee to seal and do not become invalid, prevent spouting box body side and set up through-hole injection lubricating oil, carry out the lubrication action to sealed packing, slow down wearing and tearing, increase of service life, adopt rubber-insulated-wire hose to do the connecting pipe, make the well head eccentric wear can not influence prevent spouting box body structure, and can adjust the eccentric wear of well head in real time, and increase of service life, the cost performance is improved, and the maintenance cost is reduced.
Description
Technical Field
The utility model relates to an oil pumping of beam-pumping unit, gas production operation technical field specifically indicate a coal bed gas self-modulation pump rod prevents spouting box.
Background
At present, many oil fields adopt a gas-water mixed injection mode to drive oil, because oil reservoirs of certain oil and gas field blocks are deeply buried and the stratum opening pressure is high, and because artificial gas injection and water injection are carried out in the oil extraction blocks of the oil fields, the stratum pressure is increased, so that pumping and spraying risks exist in the oil extraction process of a wellhead of an oil pumping unit. And with the following risks:
firstly, in the oil pumping process, a large amount of water and gas overflow can be accompanied, salt in water can be separated out at a wellhead, and packing abrasion speed is accelerated to cause sealing failure.
Secondly, due to the complex well conditions, the conditions of water, salt, acid, dry pumping and the like can cause the rapid abrasion of the packing, and the packing pressing force is reduced to cause the sealing failure.
Thirdly, the accumulated stroke of the pumping rod which does not continuously reciprocate up and down every day is large, and the crude oil leakage and the sealing loss of the well mouth can be generated due to the abrasion of the sealing packing after the pumping operation is carried out for a certain time.
And fourthly, the effective period of the sealing packing is short due to eccentric wear of the wellhead.
Therefore, the sealing of the packing of the blowout prevention box is improved, and the urgent need of oil and gas field sucker rod operation is met.
The existing blowout prevention box is mainly characterized in that a sealing packing is a plurality of disc plates, and the defects are as follows:
firstly, the disc flat plate type sealing packing has no continuous pressing structure, and the sealing packing is easy to lose efficacy.
And secondly, the blowout prevention box has no lubricating structure, the accumulated stroke of the uninterrupted up-and-down reciprocating motion of the sucker rod every day is large, and the leakage and the sealing failure of crude oil at a well mouth are caused by the abrasion of a sealing packing.
And thirdly, the sealing packing fails in a short time due to eccentric wear of the wellhead.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is above technical problem provides a sealed effectual, long service life's coal bed gas self modulation pump pole prevents spouting box.
In order to solve the technical problem, the utility model provides a technical scheme does: the utility model provides a coal bed gas self-align pump pole prevents spouting box, includes and prevents spouting the box body, prevent being equipped with on the box body and press cap one, prevent that the box body of spouting is equipped with sealed packing with the well piece of pressing cap one, sealed packing on be equipped with the clamping ring, the up end of clamping ring and the inner chamber up end crimping of pressing cap one, the outside of preventing the box body be equipped with and connect the clamping ring down, last connection clamping ring and connect down and be equipped with the connecting pipe between the clamping ring, the below of connecting the clamping ring down be equipped with the lower clutch.
As an improvement, a conical inner cavity is formed in the blowout prevention box body, the upper opening is large, the lower opening is small, the sealing packing is the same as the conical inner cavity in shape and is placed in the blowout prevention box body, self compensation can be carried out on self abrasion loss of the sealing packing, the sealing effect can be continuously achieved, and the service life of the device is prolonged.
As an improvement, the end face of the compression ring is provided with a sealing ring C which is tightly pressed with the upper end face of the inner cavity of the first compression cap, so that the sealing effect of the device is ensured.
As an improvement, prevent spouting the box body on be equipped with the side opening, the side opening in be equipped with and compress tightly the circular bead, the circular bead that compresses tightly on be equipped with sealed the pad, the side opening in be connected with and press the cap two, press the cap two with sealed the inseparable pressfitting of pad on compressing tightly the circular bead, guarantee sealed effect, the accessible is poured into lubricating oil into, plays the lubrication action to sealed packing.
As an improvement, the blowout prevention box body is provided with grooves at the superposition position of the upper connecting compression ring and the superposition outlet of the lower joint and the lower connecting compression ring, and the grooves are respectively provided with a sealing ring A and a sealing ring B.
As an improvement, the connecting pipe adopts a rubber wire hose, and the upper end and the lower end of the connecting pipe are respectively connected with the upper connecting compression ring and the lower connecting compression ring through hot-pressing, so that the connecting pipe has a self-adjusting function on eccentric wear of a wellhead, the blowout prevention box body is prevented from being influenced, and the service life of the device is prolonged.
Compared with the prior art, the utility model the advantage lie in: through setting up multiple seal structure, hoisting device's sealed effect, will prevent spouting the inner chamber of box body and sealed packing design is toper, make sealed packing can compensate by oneself to wearing and tearing department, in order to realize its sealed effect originally, guarantee to seal and do not become invalid, prevent spouting box body side and set up through-hole injection lubricating oil, carry out the lubrication action to sealed packing, slow down wearing and tearing, increase of service life, adopt rubber-insulated-wire hose to do the connecting pipe, make the well head eccentric wear can not influence prevent spouting box body structure, and can adjust the eccentric wear of well head in real time, and increase of service life, the cost performance is improved, and the maintenance cost is reduced.
Drawings
Fig. 1 is the utility model discloses a structural schematic of coal bed gas self-adjusting inclined to one side pump rod prevents spouting box.
As shown in the figure: 1. the blowout prevention box comprises a first pressing cap, a second pressing cap, a sealing ring, a third sealing ring, a fourth sealing ring, a fifth sealing ring, a sixth sealing ring, a fifth sealing ring, a sixth sealing ring, a blowout prevention box body, a sixth sealing ring, a connecting ring, a sixth sealing ring, a connecting ring, a sealing ring, a connecting ring A, a sealing ring A, a lower sealing ring A, a sealing ring A, 9, a sealing ring A, a lower sealing ring A, a sealing ring A, a lower connecting ring A, a lower and a lower connecting ring A, 9, a lower connecting ring A, a lower connecting ring, a lower end, a.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Combine accompanying drawing 1, a coal bed gas self-align pump pole prevents spouting box, including preventing spouting box body 5, prevent spouting box body 5 on be equipped with and press cap 1, prevent spouting box body 5 and the well spare of pressing cap 1 be equipped with sealing packing 4, sealing packing 4 on be equipped with clamping ring 3, the up end of clamping ring 3 and the inner chamber up end crimping of pressing cap 1, the outside of preventing spouting box body 5 be equipped with and connect clamping ring 9 and connect clamping ring 11 down, last connection clamping ring 9 and connect down and be equipped with connecting pipe 10 between the clamping ring 11, the below of connecting clamping ring 11 down be equipped with lower clutch 13.
The blowout prevention box body 5 is internally provided with a conical inner cavity, the upper opening is large, the lower opening is small, and the sealing packing 4 is the same as the conical inner cavity in shape and is placed in the blowout prevention box body 5.
And a sealing ring C2 is arranged on the end face of the pressing ring 3 and is tightly pressed with the upper end face of the inner cavity of the first pressing cap 1.
The blowout prevention box body 5 is provided with a side hole, a compression shoulder is arranged in the side hole, a sealing gasket 6 is arranged on the compression shoulder, a second pressing cap 7 is connected in the side hole, and the second pressing cap 7 tightly presses the sealing gasket 6 on the compression shoulder.
The blowout prevention box body 5 is provided with grooves at the superposition position of the upper connecting compression ring 9 and the superposition of the lower connector 13 and the lower connecting compression ring 11, and the grooves are respectively provided with a sealing ring A8 and a sealing ring B12.
The connecting pipe 10 adopts a rubber wire hose, and the upper end and the lower end of the connecting pipe are respectively connected with the upper connecting pressing ring 9 and the lower connecting pressing ring 11 through hot pressing.
When the utility model is implemented, the sealing ring is pressed and mounted on the end face of the compression ring, the upper end face of the sealing ring is pressed and connected with the upper end face of the inner cavity of the pressing cap firmly, the pressing cap I is connected with the upper end of the blowout prevention box body through screw threads, the sealing packing is clamped in the conical inner cavity of the blowout prevention box body and is attached to the side face, the upper end face of the sealing packing is pressed and connected with the compression ring, the side face beside the bottom of the inner cavity of the blowout prevention box body is provided with a side hole, the sealing gasket is clamped on the pressing shoulder in the side hole of the blowout prevention box body, the inner hexagonal pressing cap and the side hole are connected through screw threads, the O-shaped sealing ring is pressed and mounted in the groove outside the blowout prevention box body, the upper connecting compression ring is connected with the blowout prevention box body below the side hole through screw threads, the two ends of the rubber steel wire hose are respectively connected with the upper connecting compression ring and the lower connecting compression ring through hot pressing, the groove is arranged on the side face of the lower joint, the sealing ring is pressed and mounted in the groove of the lower joint, and the lower joint and the lower connecting compression ring are fixedly connected through threads.
The utility model discloses a theory of operation: when the sucker rod does up-and-down reciprocating motion in the sealing packing, after the sealing packing is worn, because of the conical structure, the abrasion has a micro compensation effect, the pressing cap and the blowout prevention box body are in threaded connection, when the abrasion loss of the sealing packing is larger than self compensation, the pressing cap is in threaded connection with the adjustable compensation of the threads of the blowout prevention box body, lubricating oil is injected from the side hole, a self-lubricating effect is achieved on the packing, when the wellhead is in eccentric wear, because the rubber wire hose is the only carrier for connecting the blowout prevention box body and the wellhead, the rubber wire hose can be adjusted in real time along with the eccentric wear of the wellhead, the wellhead eccentric wear does not act on the blowout prevention box body, namely, the wellhead eccentric wear does not act on the sucker rod and the sealing packing.
The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.
Claims (6)
1. The utility model provides a coal bed gas self-modulation pump pole prevents spouting box, includes prevents spouting box body (5), its characterized in that: prevent being equipped with on box body (5) and press cap (1), prevent that the middle part of preventing box body (5) and pressure cap (1) is equipped with sealed packing (4), sealed packing (4) on be equipped with clamping ring (3), the up end of clamping ring (3) and the inner chamber up end crimping of pressing cap (1), the outside of preventing box body (5) be equipped with and connect clamping ring (9) and connect clamping ring (11) down, last connection clamping ring (9) and connect down and be equipped with connecting pipe (10) between clamping ring (11), the below of connecting clamping ring (11) down be equipped with lower clutch (13).
2. The coal bed gas self-aligning pump rod blowout prevention box of claim 1, wherein: the blowout prevention box is characterized in that a conical inner cavity is formed in the blowout prevention box body (5), the upper opening is large, the lower opening is small, and the sealing packing (4) is the same as the conical inner cavity in shape and is placed in the blowout prevention box body (5).
3. The coal bed gas self-aligning pump rod blowout prevention box of claim 1, wherein: and a sealing ring C (2) is arranged on the end face of the compression ring (3) and is tightly pressed with the upper end face of the inner cavity of the first compression cap (1).
4. The coal bed gas self-aligning pump rod blowout prevention box of claim 1, wherein: prevent spouting box body (5) on be equipped with the side opening, the side opening in be equipped with and compress tightly the circular bead, the circular bead that compresses tightly on be equipped with sealed the pad (6), the side opening in be connected with and press cap two (7), press cap two (7) with sealed pad (6) inseparable pressfitting on compressing tightly the circular bead.
5. The coal bed gas self-aligning pump rod blowout prevention box of claim 1, wherein: the blowout prevention box body (5) is provided with grooves at the superposition position of the upper connecting compression ring (9) and the superposition of the lower joint (13) and the lower connecting compression ring (11), and the grooves are respectively provided with a sealing ring A (8) and a sealing ring B (12).
6. The coal bed gas self-aligning pump rod blowout prevention box of claim 1, wherein: the connecting pipe (10) adopts a rubber wire hose, and the upper end and the lower end of the connecting pipe are respectively connected with the upper connecting pressing ring (9) and the lower connecting pressing ring (11) through hot pressing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120657266.9U CN214697780U (en) | 2021-03-31 | 2021-03-31 | Self-adjusting pump rod blowout prevention box for coal bed gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120657266.9U CN214697780U (en) | 2021-03-31 | 2021-03-31 | Self-adjusting pump rod blowout prevention box for coal bed gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214697780U true CN214697780U (en) | 2021-11-12 |
Family
ID=78528134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120657266.9U Active CN214697780U (en) | 2021-03-31 | 2021-03-31 | Self-adjusting pump rod blowout prevention box for coal bed gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214697780U (en) |
-
2021
- 2021-03-31 CN CN202120657266.9U patent/CN214697780U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yang Wenlai Inventor after: Zhang Xun Inventor after: Ding Jianjun Inventor after: Rao Panpan Inventor after: Wang Zhaoxi Inventor after: Wang Lu Inventor before: Zhang Xun Inventor before: Ding Jianjun Inventor before: Rao Panpan Inventor before: Wang Zhaoxi Inventor before: Wang Lu |