CN202628015U - Grading perforation pumping capping device - Google Patents
Grading perforation pumping capping device Download PDFInfo
- Publication number
- CN202628015U CN202628015U CN 201220264082 CN201220264082U CN202628015U CN 202628015 U CN202628015 U CN 202628015U CN 201220264082 CN201220264082 CN 201220264082 CN 201220264082 U CN201220264082 U CN 201220264082U CN 202628015 U CN202628015 U CN 202628015U
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- packing
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- perforation
- push rod
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Abstract
The utility model relates to a grading perforation pumping capping device in the field of an underground construction device of a logging cable. The grading perforation pumping capping device comprises a packing stop block, a packing sealing cabin, a sealing packing, a packing push rod, a hydraulic cylinder body, a transformation connector, a piston and a pressurizing connector, wherein the hydraulic cylinder body, the piston and the packing sealing cabin are respectively of a tube structure, the packing stop block, the sealing packing and the packing push rod are respectively of a cylindrical structure which is folded along the axis and respectively provided with a central hole along the same axis. By adopting the technical scheme, the grading perforation pumping capping device is not only light and flexible, but also is simple to operate. The pressure resistant index of the grading perforation pumping capping device is detected to reach 40MPa/30min; and in addition, the grading perforation pumping capping device can be matched with different blownout prevention pipes with different models, such as an oil pipe, a drill rod and the like. The grading perforation pumping capping device is particularly suitable for the operation under pressure of different cables in an oil region and particularly has an important significance on implementing the grading perforation for mining shale gas of a horizontal well.
Description
Technical field
A kind of classification perforation that the application relates in the construction equipment field, logging cable down-hole pumps into the shut-in well device.
Background technology
Along with wireline operation the popularizing of petroleum industry, when especially carrying out classification perforation, production logging, electric cable bridge plug, cable salvage, test jobs, well kick or overflow phenomena appear sometimes, as not taking appropriate measures, can cause bigger economic loss.Shortcomings such as and existing control device adopts the cable preventer more, and it exists, and sealing is poor, complex operation, volume are big also can be taken a large amount of stop-leak compounds out of rising in the survey process of cable, have polluted environment.In addition in classification perforation construction, need pump into the shut-in well device through the classification perforation and carry out pumping and could arrive horizontal segment, so the classification perforation pumps into the device of shunting in a well and in construction, seems particularly important.Therefore, development classification perforation pumps into the shut-in well device, realizes that horizontal well classification perforating job has great importance.
Summary of the invention
The application's purpose is exactly the defective that exists to existing apparatus, and it is simple to propose a kind of assembling, and flexible operation, classification perforation safe and reliable, highly versatile pump into the shut-in well device.
Its technical scheme is: comprise packing block, packing_seal cabin, sealed packing, packing push rod, hydraulic cylinder, crossover sub, piston, add crimp head; Wherein hydraulic cylinder, piston and packing_seal cabin are tubular structure; Packing block, sealed packing and packing push rod are along the involutory cylindrical structure of axis, and along same axis is prefabricated centre bore are arranged; Two ends at hydraulic cylinder connect the packing sealed compartment respectively; Two packing_seal cabin inner chambers are pegged graft respectively and are combined with packing push rod, sealed packing, sealed packing by be connected packing_seal out of my cabin the packing block of end stop cooperation; Have boss in the hydraulic cylinder, boss is axially arranged with the Oil Guide through hole, is provided with the crimp head that adds with the perforation of Oil Guide through hole in the hydraulic cylinder outside; Be provided with the piston of axial symmetrical distribution at hydraulic cylinder inner chamber middle part; Two piston outer ends are equipped with outer convex edge; Section after two piston centres are involutory is groove structure; This groove structure forms with the interior boss of hydraulic cylinder and cooperates; The neighboring of two outer convex edges of piston and the inwall of the non-bossing of hydraulic cylinder inwall form sealed sliding movingly, and the outer convex edge inside wall of two pistons two end faces with the Oil Guide through hole respectively is relative, and the outer convex edge lateral wall of two pistons joins with the packing push rod respectively.
Packing push rod and hydraulic cylinder and joint portion, packing_seal cabin be prefabricated to have spring cavity, and spring housing is outside the packing push rod.
Packing push rod inner end is provided with outer chimb, and outer chimb joins with outer convex edge of piston and spring respectively.
Connect crossover sub in the outer end in two packing_seal cabins respectively and hang a bowl joint, hang that bowl joint is external to be hung.
At piston and the hydraulic cylinder sealing surface that is slidingly matched, packing push rod, packing block and packing_seal cabin sealing surface are equipped with sealing ring, are provided with the overflow adapter together with piston cavity at hydraulic cylinder.
Classification perforation after the employing technique scheme pumps into the shut-in well device, and the cable blowout hookup of having corrected one's mistakes exists assembling loaded down with trivial details, shortcomings such as relatively poor, the easy contaminated environment of versatility, transportation trouble; Not only flexibly light and handy; Operation is succinct, need not cut off cable during assembling and make cable head again, and only need are installed choke tube and packing after cable is passed device fast again on cable; So not only save the time, also reduced unnecessary waste simultaneously.Reach 40Mpa/30min through detecting its withstand voltage index, this device can connect with the lubricator of various models in addition, for example oil pipe, drilling rod etc.Be particularly suitable for the various cable Operating Pressures in oil district, especially implement to have consequence in the classification perforation in the exploitation of horizontal well shale gas.
Description of drawings
Accompanying drawing is the overall structure sketch of a kind of embodiment.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
With reference to accompanying drawing 1, the classification perforation pumps into the shut-in well device and comprises packing block (packing block 3 and following packing block 14 on the branch), packing_seal cabin (packing_seal cabin 4 and following packing sealed compartment 13 on the branch), sealed packing (sealed packing 5 and lower seal packing 12 on the branch), packing push rod (7 times packing push rods 11 of packing push rod on the branch), hydraulic cylinder 8, crossover sub 15, piston 16 (dividing two pistons up and down), adds crimp head 17, overflow adapter 9, spring (dividing upper spring 6 and lower spring 10), hangs bowl joint 2 and hang bowl 1.
Wherein hydraulic cylinder 8, piston 16 and packing_seal cabin (4 and 13) are tubular structure; Packing block (3 and 14), sealed packing (5 and 12) and packing push rod (7 and 11) are along the involutory cylindrical structure of axis; And centre bore arranged along same axis is prefabricated; After this design was convenient to open along axis, cable was put into along axis.Connect packing sealed compartment (4 and 13) respectively at the two ends of hydraulic cylinder 8; Two packing_seal cabins (4 and 13) inner chamber is pegged graft respectively and is combined with packing push rod (7 and 11), sealed packing (5 and 12), and sealed packing (5 and 12) stops cooperation by the packing block (3 and 14) that is connected outer end, packing_seal cabin (4 and 13); Have boss in the hydraulic cylinder 8, boss is axially arranged with the Oil Guide through hole, is provided with in hydraulic cylinder 8 outsides with the Oil Guide through hole connects to add crimp head 17; Be provided with the piston 16 of axial symmetrical distribution at hydraulic cylinder 8 inner chambers middle part; Two piston 16 outer ends are equipped with outer convex edge; Section after two piston 16 centres are involutory is groove structure; This groove structure forms with hydraulic cylinder 8 interior boss and cooperates; The inwall of the neighboring of two piston 16 outer convex edges and the non-bossing of hydraulic cylinder 8 inwalls forms sealed sliding movingly, and the outer convex edge inside wall of two pistons 16 two end faces with the Oil Guide through hole respectively is relative, and the outer convex edge lateral wall of two pistons 16 joins with packing push rod (7 and 11) respectively.Be connected crossover sub 15 in the outer end of two packing_seal cabins (4 and 13) respectively and hang bowl joint 2, hang bowl joint 2 external bowls 1 that hang.
The further perfect scheme of embodiment comprises: packing push rod (7 and 11) and hydraulic cylinder 8 and joint portion, packing_seal cabin (4 and 13) be prefabricated to have spring cavity; Packing push rod (7 and 11) inner end is provided with outer chimb, and outer chimb joins with the piston 16 outer convex edges spring (6 and 10) outer with being enclosed within packing push rod (7 and 11) respectively.
In order to improve the sealing of device; At piston 16 and hydraulic cylinder 8 sealing surface that is slidingly matched, packing push rod (7 and 11), packing block (3 and 14) and packing_seal cabin (4 and 13) and hang bowl joint 2 and packing_seal cabin 4, crossover sub 15 and packing_seal cabin 13 sealing surfaces are equipped with sealing ring.
Operating principle of the present invention is: hydraulic oil gets into the cylinder sleeve between piston and the hydraulic cylinder through hydraulic line through adding crimp head; After reaching certain pressure; Promote piston to two end motions, the compressing rubber sealed packing relies on the plastic strain of rubber seal packing to embrace cable tightly; Prevent that oil, gas from flowing out along slit, the cable outside, reaches the purpose of the two-way movable sealing of cable.But other pipe of crossover sub connects, and versatility is stronger.
Claims (5)
1. a classification perforation pumps into the shut-in well device; It is characterized in that: comprise packing block, packing_seal cabin, sealed packing, packing push rod, hydraulic cylinder, crossover sub, piston, add crimp head; Wherein hydraulic cylinder, piston and packing_seal cabin are tubular structure; Packing block, sealed packing and packing push rod are along the involutory cylindrical structure of axis, and along same axis is prefabricated centre bore are arranged; Two ends at hydraulic cylinder connect the packing sealed compartment respectively; Two packing_seal cabin inner chambers are pegged graft respectively and are combined with packing push rod, sealed packing, sealed packing by be connected packing_seal out of my cabin the packing block of end stop cooperation; Have boss in the hydraulic cylinder, boss is axially arranged with the Oil Guide through hole, is provided with the crimp head that adds with the perforation of Oil Guide through hole in the hydraulic cylinder outside; Be provided with the piston of axial symmetrical distribution at hydraulic cylinder inner chamber middle part; Two piston outer ends are equipped with outer convex edge; Section after two piston centres are involutory is groove structure; This groove structure forms with the interior boss of hydraulic cylinder and cooperates; The neighboring of two outer convex edges of piston and the inwall of the non-bossing of hydraulic cylinder inwall form sealed sliding movingly, and the outer convex edge inside wall of two pistons two end faces with the Oil Guide through hole respectively is relative, and the outer convex edge lateral wall of two pistons joins with the packing push rod respectively.
2. classification perforation according to claim 1 pumps into the shut-in well device, it is characterized in that: packing push rod and hydraulic cylinder and joint portion, packing_seal cabin be prefabricated to have spring cavity, and spring housing is outside the packing push rod.
3. classification perforation according to claim 2 pumps into the shut-in well device, it is characterized in that: packing push rod inner end is provided with outer chimb, and outer chimb joins with outer convex edge of piston and spring respectively.
4. pump into the shut-in well device according to claim 1 or 2,3 described classification perforations, it is characterized in that: connect crossover sub in the outer end in two packing_seal cabins respectively and hang a bowl joint, hang that bowl joint is external to be hung.
5. pump into the shut-in well device according to claim 1 or 2,3 described classification perforations; It is characterized in that: at piston and the hydraulic cylinder sealing surface that is slidingly matched; Packing push rod, packing block and packing_seal cabin sealing surface are equipped with sealing ring, are provided with the overflow adapter together with piston cavity at hydraulic cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220264082 CN202628015U (en) | 2012-06-06 | 2012-06-06 | Grading perforation pumping capping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220264082 CN202628015U (en) | 2012-06-06 | 2012-06-06 | Grading perforation pumping capping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202628015U true CN202628015U (en) | 2012-12-26 |
Family
ID=47381223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220264082 Expired - Lifetime CN202628015U (en) | 2012-06-06 | 2012-06-06 | Grading perforation pumping capping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202628015U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104453767B (en) * | 2014-11-21 | 2017-02-22 | 西南石油大学 | Wellhead sealing tool for mechanical logging in gas drilling |
| CN108489839A (en) * | 2018-05-29 | 2018-09-04 | 辽宁众森装备制造有限公司 | Packing wear condition monitoring device |
-
2012
- 2012-06-06 CN CN 201220264082 patent/CN202628015U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104453767B (en) * | 2014-11-21 | 2017-02-22 | 西南石油大学 | Wellhead sealing tool for mechanical logging in gas drilling |
| CN108489839A (en) * | 2018-05-29 | 2018-09-04 | 辽宁众森装备制造有限公司 | Packing wear condition monitoring device |
| CN108489839B (en) * | 2018-05-29 | 2024-04-26 | 辽宁众森装备制造有限公司 | Packing wearing state monitoring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150929 Address after: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Patentee after: Sinopec Corp. Patentee after: SINOPEC OILFIELD SERVICE CORPORATION Address before: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Patentee before: Sinopec Corp. Patentee before: SINOPEC Shengli Petroleum Administration Well Logging Company |
|
| CX01 | Expiry of patent term |
Granted publication date: 20121226 |
|
| CX01 | Expiry of patent term |