CN217976155U - Impact-resistant and corrosion-resistant single-clamp blast hole plugging tool - Google Patents
Impact-resistant and corrosion-resistant single-clamp blast hole plugging tool Download PDFInfo
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- CN217976155U CN217976155U CN202221511458.XU CN202221511458U CN217976155U CN 217976155 U CN217976155 U CN 217976155U CN 202221511458 U CN202221511458 U CN 202221511458U CN 217976155 U CN217976155 U CN 217976155U
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Abstract
The utility model provides a corrosion-resistant single card porthole shutoff instrument shocks resistance. Relates to the technical field of oil field downhole tools. The lower part and the upper part of the middle rubber cylinder are of a symmetrical structure and sequentially comprise a spacer ring, an edge rubber cylinder, a pushing sleeve, a piston, a sheath and a liquid inlet hole on a central pipe, the lower part of the central pipe is in threaded sealing connection with an inner hole of a lower joint, and the excircle of the lower joint is in threaded sealing connection with the sheath. The utility model discloses following beneficial effect has: when stratum pressure and stratum structure change, impact and deformation are directly generated to the middle rubber tube, the middle rubber tube is used as a plugging and buffering part to absorb impact of the stratum, stratum liquid cannot impact and corrode the side rubber tube, the upper side rubber tube and the lower side rubber tube are used as main plugging parts, corrosion resistance and impact resistance of single-stop injection stop are improved, long-term stability effect of stop injection of single-stop injection is improved, high pressure is applied to the interior of the pipe column again when a borehole does not need to be plugged, and the piston is pushed to cut off the setting pin to be capable of deblocking.
Description
The technical field is as follows:
the utility model belongs to the technical field of the oil field instrument in the pit and specifically relates to a corrosion-resistant single calorie of porthole shutoff instrument shocks resistance.
Background art:
along with the continuous extension of water injection opening time, each oil field enters a high water content period in succession, the injection-production relationship tends to be complex, the contradiction among small layers is more and more prominent, ineffective and low-efficiency water circulation is serious, so that the contradiction among in-layer injection is prominent, a water layer needs to be injected finely in the oil field water injection aiming at a thick oil layer, an ineffective production layer is subjected to single-block injection, other poor oil layers continue to inject water, the utilization degree of the oil layer is improved, and ineffective water injection is reduced.
The utility model has the following contents:
in order to solve the problem that single calorie of big gun hole instrument corrosion resistance, shock resistance are low, the utility model provides a corrosion resistant single calorie of big gun hole shutoff instrument shocks resistance.
The technical scheme of the utility model is that: the utility model provides a corrosion-resistant singly block porthole shutoff instrument shocks resistance, including the top connection, top connection hole thread sealing connects the center tube, top connection excircle thread sealing connects the sheath, install the piston between center tube and the sheath, the piston passes through sealing washer and center tube, the sheath clearance fit is connected, the center tube is opened there is the feed liquor hole at the piston position, the piston lower part is for advancing the cover, it vulcanizes fixed connection limit packing element to advance the cover lower part, limit packing element downside is the spacer ring, the spacer ring downside is well packing element, be symmetrical structure with upper portion below the well packing element, be the spacer ring in proper order, limit packing element, advance the cover, the piston, the feed liquor hole on sheath and the center tube, center tube lower part thread sealing connects the lower joint hole, lower joint excircle thread sealing connects the sheath.
The inner side of the piston is provided with a counter bore, a setting pin and a spring are arranged in the counter bore, and a ring groove is arranged on the central tube of the propelling sleeve part.
When the piston moves towards the pushing sleeve and the edge rubber cylinder and the middle rubber cylinder expand, the setting pin is positioned at the ring groove part.
The utility model discloses following beneficial effect has: when stratum pressure and stratum structure change, impact and deformation are directly generated to the middle rubber tube, the middle rubber tube is used as a plugging and buffering part to absorb impact of the stratum, stratum liquid cannot impact and corrode the side rubber tube, the upper side rubber tube and the lower side rubber tube are used as main plugging parts, corrosion resistance and impact resistance of single-stop injection stop are improved, long-term stability effect of stop injection of single-stop injection is improved, high pressure is applied to the interior of the pipe column again when a borehole does not need to be plugged, and the piston is pushed to cut off the setting pin to be capable of deblocking.
Description of the drawings:
fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is an enlarged view of fig. 1 at a.
In the figure, 1-an upper joint, 2-a lower joint, 3-a central pipe, 4-a piston, 5-a sheath, 6-a propelling sleeve, 7-a side rubber cylinder, 8-a spacer ring, 9-a middle rubber cylinder, 10-a liquid inlet hole, 11-a counter bore, 12-a setting pin and 13-a ring groove.
The specific implementation mode is as follows:
the present invention will be further explained with reference to the accompanying drawings:
as shown by combining the figure 1 with the figure 2, the impact-resistant corrosion-resistant single-clamp blasthole plugging tool comprises an upper joint 1, an inner hole of the upper joint 1 is in threaded sealing connection with a central pipe 3, an excircle of the upper joint 1 is in threaded sealing connection with a sheath 5, a piston 4 is installed between the central pipe 3 and the sheath 5, the piston 4 is in clearance fit connection with the central pipe 3 and the sheath 5 through a sealing ring, a liquid inlet hole 10 is formed in the central pipe 3 at the position of the piston 4, a pushing sleeve 6 is arranged on the lower portion of the piston 4, a side rubber cylinder 7 is vulcanized and fixedly connected to the lower portion of the pushing sleeve 6, a spacer ring 8 is arranged on the lower side of the side rubber cylinder 7, a middle rubber cylinder 9 is arranged on the lower side of the spacer ring 8, a symmetric structure is formed below the middle rubber cylinder 9 and above the middle rubber cylinder, the spacer ring 8, the side rubber cylinder 7, the pushing sleeve 6, the piston 4, the sheath 5 and the liquid inlet hole 10 in the central pipe 3 are sequentially, the lower portion of the central pipe is in threaded sealing connection with an inner hole of a lower joint 2, and the excircle of the lower joint 2 is in threaded sealing connection with the sheath 5.
The inner side of the piston 4 is provided with a counter bore 11, a setting pin 12 and a spring are arranged in the counter bore 11, and a ring groove 13 is arranged on the central tube 3 at the position of the propelling sleeve 6.
When the piston 4 moves towards the pushing sleeve 6 and the edge rubber cylinder 7 and the middle rubber cylinder 9 expand, the setting pin 12 is positioned at the annular groove 13.
The tool is connected with a pipe column and is put into an invalid production layer, the middle rubber cylinder 9 is positioned at a blast hole position and is pressed into the pipe column, the upper piston 4 and the lower piston 4 move relatively to push the pushing sleeve 6 to move relatively, the upper side rubber cylinder 7 and the middle rubber cylinder 9 expand, when the pistons 4 move to the positions of the counter bores 11 and the ring 13, the setting pins 12 are popped out to enter the ring grooves 13 to fix the pistons 4, the single-block blast hole plugging is finished, when the stratum pressure and the stratum structure change, the middle rubber cylinder 9 directly impacts and deforms, the middle rubber cylinder 9 is used as a plugging and buffering part to absorb the impact of the stratum, the stratum liquid cannot impact and corrode the side rubber cylinder 7, the upper side rubber cylinder 7 and the lower side rubber cylinder 7 are used as main plugging parts, the corrosion resistance and the impact resistance of single-block stop injection are improved, and the long-term stable effect of the single-block stop injection is improved.
When the blast hole does not need to be sealed, high pressure is applied to the interior of the pipe column again, and the piston 4 is pushed to cut the setting pin 12, so that the setting can be unsealed.
Claims (3)
1. The utility model provides a corrosion-resistant single-truck porthole shutoff instrument shocks resistance, includes joint (1), its characterized in that: the upper joint (1) inner hole thread sealing connection center pipe (3), the upper joint (1) outer circle thread sealing connection sheath (5), install piston (4) between center pipe (3) and sheath (5), piston (4) are through sealing washer and center pipe (3), sheath (5) clearance fit is connected, center pipe (3) are opened at piston (4) position has feed liquor hole (10), piston (4) lower part is for advancing cover (6), it vulcanizes fixed connection limit packing element (7) to advance cover (6) lower part, limit packing element (7) downside is spacer ring (8), spacer ring (8) downside is well packing element (9), be symmetrical structure below well packing element (9) with upper portion, be spacer ring (8) in proper order, limit packing element (7), advance cover (6), piston (4), feed liquor hole (10) on sheath (5) and center pipe (3), center pipe (3) lower part inner hole thread sealing connection lower joint (2), lower joint (2) outer circle thread sealing connection sheath (5).
2. The impact-resistant corrosion-resistant single-truck blasthole plugging tool of claim 1, wherein: a counter bore (11) is formed in the inner side of the piston (4), a setting pin (12) and a spring are installed in the counter bore (11), and a ring groove (13) is formed in the central tube (3) at the position of the pushing sleeve (6).
3. An impact resistant and corrosion resistant single stuck blasthole plugging tool as in claim 1 or 2, further comprising: when the piston (4) moves towards the pushing sleeve (6) and the edge rubber cylinder (7) and the middle rubber cylinder (9) expand, the setting pin (12) is positioned at the ring groove (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221511458.XU CN217976155U (en) | 2022-06-16 | 2022-06-16 | Impact-resistant and corrosion-resistant single-clamp blast hole plugging tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221511458.XU CN217976155U (en) | 2022-06-16 | 2022-06-16 | Impact-resistant and corrosion-resistant single-clamp blast hole plugging tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217976155U true CN217976155U (en) | 2022-12-06 |
Family
ID=84270530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221511458.XU Active CN217976155U (en) | 2022-06-16 | 2022-06-16 | Impact-resistant and corrosion-resistant single-clamp blast hole plugging tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217976155U (en) |
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2022
- 2022-06-16 CN CN202221511458.XU patent/CN217976155U/en active Active
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