CN112412386A - Sliding regulation type oil casing plugging sealer - Google Patents
Sliding regulation type oil casing plugging sealer Download PDFInfo
- Publication number
- CN112412386A CN112412386A CN202011366191.5A CN202011366191A CN112412386A CN 112412386 A CN112412386 A CN 112412386A CN 202011366191 A CN202011366191 A CN 202011366191A CN 112412386 A CN112412386 A CN 112412386A
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- sliding
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- groove
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- 238000007789 sealing Methods 0.000 claims abstract description 73
- 210000001503 joint Anatomy 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 description 5
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/1208—Packers; Plugs characterised by the construction of the sealing or packing means
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B29/00—Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
- E21B29/10—Reconditioning of well casings, e.g. straightening
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Sealing Devices (AREA)
- Pipe Accessories (AREA)
Abstract
The invention discloses a sliding adjustment type oil casing pipe leakage stoppage sealer which comprises a first arc-shaped sleeve joint piece, a second arc-shaped sleeve joint piece and a sliding adjustment type sealing mechanism, wherein the first arc-shaped sleeve joint piece is connected with the second arc-shaped sleeve joint piece through a sliding adjustment mechanism; the sliding block is connected in the sliding groove in a sliding mode, the clamping blocks on two sides of the sliding block are respectively connected on the clamping sliding grooves in a sliding mode, the locking screw holes in the middle of the outer sides of the clamping blocks are respectively in threaded rotation with a T-shaped sliding locking screw rod, the outer end of the T-shaped sliding locking screw rod is located in the positioning groove, and the outer end of the T-shaped sliding locking screw rod is in rotating abutting-pressing or separating connection with the inner wall of the positioning groove.
Description
Technical Field
The invention relates to a sliding adjustment type oil casing pipe leakage stoppage sealer.
Background
The oil pipe is the most commonly used machine part in the oil field, the oil pipe is inevitably damaged after long-term use, so that the oil pipe can be broken and leaked, and the oil pipe in work must be rapidly treated when the oil pipe is broken and leaked so as to reduce the loss caused by the breakage and leakage; the leakage breaking part of the existing oil casing pipe is generally sealed by a sealing ring and is sealed by an external plug in a pressing way, but the structure of the leakage breaking part of the oil plugging casing pipe with the structure can not sleeve and connect the size of a sealing ring according to the size of a leakage breaking hole, and when the diameter of the sealing ring is smaller than that of the leakage breaking hole, a good leakage plugging effect can not be achieved.
Disclosure of Invention
Aiming at the defects of the prior art, the invention solves the problems that: the sliding adjusting type oil sleeve leaking stoppage sealer can finely adjust the axial position and can properly adjust the sizes of different sealing surfaces according to the area of a leakage breaking position.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
a sliding adjustment type oil casing pipe leakage stoppage sealer comprises a first arc-shaped sleeve joint piece, a second arc-shaped sleeve joint piece and a sliding adjustment type sealing mechanism; the first arc-shaped sleeve joint piece and the second arc-shaped sleeve joint piece enclose a hoop structure; a sliding adjusting type sealing mechanism is arranged in the middle of the first arc-shaped sleeve piece; a sliding groove is formed in the middle of the first arc-shaped sleeve piece; clamping sliding grooves are respectively formed in the two sides of the sliding groove; the outer sides of the clamping sliding chutes are respectively provided with a positioning groove; the sliding adjusting type sealing mechanism comprises a sliding block, a T-shaped sliding locking screw rod, a driving screw rod, an abutting elastic body, a connecting plate, an abutting ring, an outer large sealing ring, an inner small sealing ring and a sliding clamping rod; two sides of the sliding block are respectively provided with a clamping block; a locking screw hole is formed in the middle of the outer side of the clamping block; the sliding block is connected in the sliding groove in a sliding mode, and the clamping blocks on the two sides of the sliding block are respectively connected to the clamping sliding grooves in a sliding mode; a T-shaped sliding locking screw rod is respectively screwed on the locking screw hole in the middle of the outer side of the clamping block; the outer end of the T-shaped sliding locking screw rod is positioned in the positioning groove; the outer end of the T-shaped sliding locking screw is rotationally pressed against or separately connected to the inner wall of the positioning groove; a floating groove is formed in the middle of the inner part of the sliding block; the middle of the outer side of the floating groove is provided with a threaded hole; two sides of the floating groove are respectively provided with a sliding clamping groove; the threaded hole is in threaded rotary connection with a driving screw; the inner end of the driving screw rod is positioned in the floating groove, and the outer end of the driving screw rod is positioned on the outer side of the sliding block; a connecting plate is arranged at the inner end of the driving screw rod; the pressing elastic body is sleeved on the driving screw rod; two ends of the abutting elastic body elastically abut against the space between the connecting plate and the inner side wall of the floating groove; the inner end of the connecting plate is provided with an abutting ring; the inner end of the pressure-resisting ring is abutted with an outer large sealing ring; the inner end of the outer large sealing ring is provided with an inner small sealing ring; the peripheral edge of the outer large sealing ring is positioned outside the peripheral edge of the inner small sealing ring; two ends of the outer large sealing ring are respectively provided with a sliding clamping and connecting rod; the outer ends of the sliding clamping connecting rods are respectively clamped on the sliding clamping grooves on the side parts of the floating grooves in a sliding mode.
Further, the cross sections of the outer large sealing ring and the inner small sealing ring are of L-shaped structures.
Furthermore, the cross sections of the sliding clamping rod and the sliding clamping groove are both in T-shaped structures.
Furthermore, a protective cylinder is arranged on the outer side of the periphery of the threaded hole; the protection cylinder is positioned on the outer side of the periphery of the outer end of the driving screw rod.
Furthermore, the connecting plate and the pressing ring are connected into a sealing sleeve body with an inverted U-shaped section.
Furthermore, the two sides of the first arc-shaped sleeve joint part and the second arc-shaped sleeve joint part are respectively fastened in a cross-connection mode through screws and nuts.
Further, both sides of the first arc-shaped socket piece are provided with first butt joint plates; two sides of the second arc-shaped socket joint piece are provided with second butt joint plates; the first butt joint plate is provided with a T-shaped through hole; the second butt joint plate is provided with a through round hole; the T-shaped cross-connecting holes are in cross connection through T-shaped screws, and the outer ends of the T-shaped screws extend to the outer sides of the cross-connecting round holes; the outer end of the T-shaped screw is rotationally fastened through a nut.
The invention has the advantages of
The sliding block is connected in the sliding groove in a sliding mode, the clamping blocks on two sides of the sliding block are respectively connected on the clamping sliding grooves in a sliding mode, the locking screw holes in the middle of the outer sides of the clamping blocks are respectively in threaded rotation with a T-shaped sliding locking screw rod, the outer end of the T-shaped sliding locking screw rod is located in the positioning groove, and the outer end of the T-shaped sliding locking screw rod is in rotating abutting-pressing or separating connection with the inner wall of the positioning groove.
The floating driving structure of the sealing structure is additionally arranged, meanwhile, the sealing structure adopts a double-layer reducing type sealing ring structure, when a leakage breaking hole in the oil sleeve is small, the driving screw rod is rotated to drive the pressing ring to extrude the large outer sealing ring and the small inner sealing ring, so that the small inner sealing ring is extruded and attached to the outer sides of the periphery of the leakage blocking hole to form sealing; when the leakage breaking hole on the oil casing is large, the inner small sealing ring is driven to penetrate into the leakage blocking hole on the oil casing by rotating the driving screw rod, then the driving screw rod is continuously rotated, so that the outer large sealing ring is extruded and attached to the outer side of the periphery of the leakage blocking hole to form sealing, and as the two ends of the outer large sealing ring are respectively connected to the sliding clamping grooves on the side parts of the floating grooves in a sliding clamping manner through the sliding clamping rods, the outer large sealing ring can stably move and is stable in structure.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the sliding adjustable sealing mechanism of the present invention, in which the small sealing ring at the inner side is pressed and attached around the leak-stopping hole.
Fig. 3 is a schematic structural view of the large outer sealing ring of the sliding adjustable sealing mechanism of the invention extruding and fitting around the leakage blocking hole.
FIG. 4 is a schematic view showing a structure of separating the sliding block and the sliding groove according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 4, a sliding adjustment type oil casing plugging sealer includes a first arc-shaped sleeve member 1, a second arc-shaped sleeve member 2, and a sliding adjustment type sealing mechanism 3; the first arc-shaped sleeve joint piece 1 and the second arc-shaped sleeve joint piece 2 form a hoop structure in a surrounding mode; a sliding adjusting type sealing mechanism 3 is arranged in the middle of the first arc-shaped sleeve joint piece 1; a sliding groove 13 is formed in the middle of the first arc-shaped socket piece 1; clamping sliding grooves 14 are respectively formed in the two sides of the sliding groove 13; a positioning groove 15 is respectively arranged at the outer side of the clamping sliding chute 14; the sliding adjusting type sealing mechanism 3 comprises a sliding block 38, a T-shaped sliding locking screw 39, a driving screw 31, a butting elastic body 33, a connecting plate 32, a butting ring 34, an outer large sealing ring 35, an inner small sealing ring 36 and a sliding clamping rod 37; two sides of the sliding block 38 are respectively provided with a clamping block 384; the middle of the outer side of the clamping block 384 is provided with a locking screw hole 3841; the sliding block 38 is slidably connected in the sliding groove 13, and the clamping blocks 384 at two sides of the sliding block 38 are respectively slidably clamped on the clamping sliding groove 14; a T-shaped sliding locking screw rod 39 is screwed on the locking screw hole 3841 in the middle of the outer side of the clamping block 384; the outer end of the T-shaped sliding locking screw 39 is positioned in the positioning groove 15; the outer end of the T-shaped sliding locking screw rod 39 is rotationally pressed against or separately connected to the inner wall of the positioning groove 15; a floating groove 381 is arranged in the middle of the inner part of the sliding block 38; a threaded hole 382 is formed in the middle of the outer side of the floating groove 381; two sliding clamping grooves 383 are respectively arranged on two sides of the floating groove 381; the threaded hole 382 is threaded to rotatably penetrate through the driving screw 31; the inner end of the driving screw 31 is positioned in the floating groove 381, and the outer end of the driving screw 31 is positioned outside the sliding block 38; the inner end of the driving screw 31 is provided with a connecting plate 32; the abutting elastic body 33 is sleeved on the driving screw 31; two ends of the abutting elastic body 33 elastically abut against the connecting plate 32 and the inner side wall of the floating groove 381; the inner end of the connecting plate 32 is provided with an abutting ring 34; the inner end of the pressing ring 34 is abutted with an outer large sealing ring 35; the inner end of the outer large sealing ring 35 is provided with an inner small sealing ring 36; the peripheral edge of the outer large sealing ring 35 is positioned outside the peripheral edge of the inner small sealing ring 36; two ends of the outer large sealing ring 35 are respectively provided with a sliding clamping and connecting rod 37; the outer ends of the sliding clamping rods 37 are respectively clamped on the sliding clamping grooves 383 on the side portions of the floating grooves 381 in a sliding manner.
As shown in fig. 1 to 4, it is further preferable that the cross section of the outer large seal ring 35 and the inner small seal ring 36 have an L-shaped configuration. Further, the cross sections of the sliding clamping rod 37 and the sliding clamping groove 383 are both in a T-shaped structure. Further, a protective cylinder 12 is arranged on the outer side of the periphery of the threaded hole 382; the protective cylinder 12 is positioned at the outer side of the periphery of the outer end of the driving screw 31. Further, the connecting plate 32 and the pressing ring 34 are connected to form a sealing sleeve body with an inverted U-shaped cross section. Further, the two sides of the first arc-shaped socket piece 1 and the second arc-shaped socket piece 2 are respectively fastened in a cross-connection mode through screws and nuts. Further, two sides of the first arc-shaped socket piece 1 are provided with first butt joint plates 11; both sides of the second arc-shaped socket joint part 2 are provided with second butt joint plates 21; the first butt plate 11 is provided with a T-shaped through hole; the second butt joint plate 2 is provided with a through round hole; the T-shaped through holes are connected in a penetrating mode through T-shaped screws 5, and the outer ends of the T-shaped screws 5 extend to the outer sides of the through round holes; the outer end of the T-shaped screw 5 is rotationally fastened by a nut 6.
The sliding block 38 is slidably connected in the sliding groove 13, the clamping blocks 384 at two sides of the sliding block 38 are respectively slidably clamped on the clamping sliding groove 14, the locking screw holes 3841 in the middle of the outer sides of the clamping blocks 384 are respectively screwed with a T-shaped sliding locking screw rod 39, the outer end of the T-shaped sliding locking screw rod 39 is positioned in the positioning groove 15, and the outer end of the T-shaped sliding locking screw rod 39 is rotatably abutted against or detachably connected on the inner wall of the positioning groove 15, so that the separation or sliding structure of the sliding block 38 and the sliding groove 13 is realized, the axial position of the sliding block 38 is realized, and the axial hole sealing position can be finely adjusted, so that the use is flexible.
The floating driving structure of the sealing structure is additionally arranged, meanwhile, the sealing structure adopts a double-layer reducing type sealing ring structure, when a leakage hole 41 in the oil sleeve 4 is small, the driving screw 31 is rotated to drive the pressing ring 34 to extrude the outer large sealing ring 35 and the inner small sealing ring 36, so that the inner small sealing ring 36 is extruded and attached to the outer sides of the periphery of the leakage blocking hole 41 to form sealing; when the leakage hole 41 on the oil casing 4 is large, the driving screw 31 is rotated to drive the small sealing ring 36 on the inner side to penetrate into the leakage hole 41 on the oil casing 4, and then the driving screw 31 is continuously rotated to enable the large sealing ring 35 on the outer side to be extruded and attached to the outer side of the periphery of the leakage hole 41 to form sealing, because the two ends of the large sealing ring 35 on the outer side are respectively clamped on the sliding clamping grooves 383 on the side parts of the floating grooves 381 in a sliding mode through the sliding clamping rods 37, the large sealing ring 35 on the outer side can move stably and is stable in structure, and therefore the size of different sealing surfaces can be properly adjusted according to the area of the leakage position, and the use is very flexible.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. A sliding adjustment type oil casing pipe leakage plugging sealer is characterized by comprising a first arc-shaped sleeve joint piece, a second arc-shaped sleeve joint piece and a sliding adjustment type sealing mechanism; the first arc-shaped sleeve joint piece and the second arc-shaped sleeve joint piece enclose a hoop structure; a sliding adjusting type sealing mechanism is arranged in the middle of the first arc-shaped sleeve piece; a sliding groove is formed in the middle of the first arc-shaped sleeve piece; clamping sliding grooves are respectively formed in the two sides of the sliding groove; the outer sides of the clamping sliding chutes are respectively provided with a positioning groove; the sliding adjusting type sealing mechanism comprises a sliding block, a T-shaped sliding locking screw rod, a driving screw rod, an abutting elastic body, a connecting plate, an abutting ring, an outer large sealing ring, an inner small sealing ring and a sliding clamping rod; two sides of the sliding block are respectively provided with a clamping block; a locking screw hole is formed in the middle of the outer side of the clamping block; the sliding block is connected in the sliding groove in a sliding mode, and the clamping blocks on the two sides of the sliding block are respectively connected to the clamping sliding grooves in a sliding mode; a T-shaped sliding locking screw rod is respectively screwed on the locking screw hole in the middle of the outer side of the clamping block; the outer end of the T-shaped sliding locking screw rod is positioned in the positioning groove; the outer end of the T-shaped sliding locking screw is rotationally pressed against or separately connected to the inner wall of the positioning groove; a floating groove is formed in the middle of the inner part of the sliding block; the middle of the outer side of the floating groove is provided with a threaded hole; two sides of the floating groove are respectively provided with a sliding clamping groove; the threaded hole is in threaded rotary connection with a driving screw; the inner end of the driving screw rod is positioned in the floating groove, and the outer end of the driving screw rod is positioned on the outer side of the sliding block; a connecting plate is arranged at the inner end of the driving screw rod; the pressing elastic body is sleeved on the driving screw rod; two ends of the abutting elastic body elastically abut against the space between the connecting plate and the inner side wall of the floating groove; the inner end of the connecting plate is provided with an abutting ring; the inner end of the pressure-resisting ring is abutted with an outer large sealing ring; the inner end of the outer large sealing ring is provided with an inner small sealing ring; the peripheral edge of the outer large sealing ring is positioned outside the peripheral edge of the inner small sealing ring; two ends of the outer large sealing ring are respectively provided with a sliding clamping and connecting rod; the outer ends of the sliding clamping connecting rods are respectively clamped on the sliding clamping grooves on the side parts of the floating grooves in a sliding mode.
2. The sliding adjustable oil bushing leak stop seal of claim 1, wherein the cross-section of the outer large seal ring and the inner small seal ring is an L-shaped structure.
3. The sliding adjustable oil casing leak-stopping sealer as claimed in claim 1, wherein the sliding clamping rod and the sliding clamping groove are both T-shaped in cross section.
4. The sliding adjustable oil bushing leak-stopping sealer according to claim 1, wherein a protective cylinder is arranged outside the periphery of the threaded hole; the protection cylinder is positioned on the outer side of the periphery of the outer end of the driving screw rod.
5. The sliding adjustable type oil casing leak-stopping sealer as claimed in claim 1, wherein the connecting plate and the pressing ring are connected to form a sealing sleeve body with an inverted U-shaped cross section.
6. The sliding adjustable oil casing leak stoppage sealer according to claim 1, wherein both sides of the first arc-shaped socket and the second arc-shaped socket are fastened by threading through a screw and a nut, respectively.
7. The sliding adjustable oil casing leak stoppage sealer as recited in claim 6, wherein a first butt plate is provided on each side of said first arcuate socket; two sides of the second arc-shaped socket joint piece are provided with second butt joint plates; the first butt joint plate is provided with a T-shaped through hole; the second butt joint plate is provided with a through round hole; the T-shaped cross-connecting holes are in cross connection through T-shaped screws, and the outer ends of the T-shaped screws extend to the outer sides of the cross-connecting round holes; the outer end of the T-shaped screw is rotationally fastened through a nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011366191.5A CN112412386B (en) | 2020-11-29 | 2020-11-29 | Sliding regulation type oil casing plugging sealer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011366191.5A CN112412386B (en) | 2020-11-29 | 2020-11-29 | Sliding regulation type oil casing plugging sealer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112412386A true CN112412386A (en) | 2021-02-26 |
| CN112412386B CN112412386B (en) | 2023-02-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011366191.5A Active CN112412386B (en) | 2020-11-29 | 2020-11-29 | Sliding regulation type oil casing plugging sealer |
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| Country | Link |
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| CN (1) | CN112412386B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113356782A (en) * | 2021-06-28 | 2021-09-07 | 江苏力克石油机械有限公司 | Embedded connection type oil pipe leaking stoppage sealer |
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| CN110822094A (en) * | 2019-10-29 | 2020-02-21 | 东台友铭船舶配件有限公司 | Extrusion type stern shaft sealing device |
| CN110822088A (en) * | 2019-10-29 | 2020-02-21 | 东台友铭船舶配件有限公司 | Synchronous driving type stern shaft sealing device |
| CN210264625U (en) * | 2019-06-19 | 2020-04-07 | 江苏力克石油机械有限公司 | Oil casing pipe leak stoppage sealer |
| CN111059311A (en) * | 2019-12-30 | 2020-04-24 | 江苏湃森科技有限公司 | Synchronous drive type fire-fighting valve |
| CN211009897U (en) * | 2019-10-29 | 2020-07-14 | 东台友铭船舶配件有限公司 | Extrusion type stern shaft sealing device |
| CN211145347U (en) * | 2019-10-29 | 2020-07-31 | 东台友铭船舶配件有限公司 | Rotary limiting type stern shaft sealing device |
| CN111677865A (en) * | 2020-06-12 | 2020-09-18 | 东台市岳东橡胶密封件厂 | Micro-motion type sealing element |
| CN111692339A (en) * | 2020-06-12 | 2020-09-22 | 东台市岳东橡胶密封件厂 | Rotary butt type sealing device |
| CN111720547A (en) * | 2020-06-22 | 2020-09-29 | 东台市海鹏船舶配件厂 | Double-extrusion type marine sealing device |
-
2020
- 2020-11-29 CN CN202011366191.5A patent/CN112412386B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210264625U (en) * | 2019-06-19 | 2020-04-07 | 江苏力克石油机械有限公司 | Oil casing pipe leak stoppage sealer |
| CN110822094A (en) * | 2019-10-29 | 2020-02-21 | 东台友铭船舶配件有限公司 | Extrusion type stern shaft sealing device |
| CN110822088A (en) * | 2019-10-29 | 2020-02-21 | 东台友铭船舶配件有限公司 | Synchronous driving type stern shaft sealing device |
| CN211009897U (en) * | 2019-10-29 | 2020-07-14 | 东台友铭船舶配件有限公司 | Extrusion type stern shaft sealing device |
| CN211145347U (en) * | 2019-10-29 | 2020-07-31 | 东台友铭船舶配件有限公司 | Rotary limiting type stern shaft sealing device |
| CN111059311A (en) * | 2019-12-30 | 2020-04-24 | 江苏湃森科技有限公司 | Synchronous drive type fire-fighting valve |
| CN111677865A (en) * | 2020-06-12 | 2020-09-18 | 东台市岳东橡胶密封件厂 | Micro-motion type sealing element |
| CN111692339A (en) * | 2020-06-12 | 2020-09-22 | 东台市岳东橡胶密封件厂 | Rotary butt type sealing device |
| CN111720547A (en) * | 2020-06-22 | 2020-09-29 | 东台市海鹏船舶配件厂 | Double-extrusion type marine sealing device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113356782A (en) * | 2021-06-28 | 2021-09-07 | 江苏力克石油机械有限公司 | Embedded connection type oil pipe leaking stoppage sealer |
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| Publication number | Publication date |
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| CN112412386B (en) | 2023-02-24 |
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