CN203559864U - Quick drilling composite bridge plug for fracturing - Google Patents
Quick drilling composite bridge plug for fracturing Download PDFInfo
- Publication number
- CN203559864U CN203559864U CN201320800454.8U CN201320800454U CN203559864U CN 203559864 U CN203559864 U CN 203559864U CN 201320800454 U CN201320800454 U CN 201320800454U CN 203559864 U CN203559864 U CN 203559864U
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- Prior art keywords
- central tube
- split
- packing element
- cone
- rubber cylinder
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- 239000002131 composite material Substances 0.000 title claims description 8
- 238000005553 drilling Methods 0.000 title abstract 2
- 238000012856 packing Methods 0.000 claims description 33
- 239000000463 material Substances 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 3
- 239000002657 fibrous material Substances 0.000 claims description 3
- 238000003801 milling Methods 0.000 claims description 3
- 238000003032 molecular docking Methods 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims 1
- 238000000227 grinding Methods 0.000 abstract description 2
- 230000001681 protective effect Effects 0.000 abstract 2
- 150000001875 compounds Chemical group 0.000 abstract 1
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000003562 lightweight material Substances 0.000 description 1
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Abstract
The utility model relates to an oil field oil production engineering field especially belongs to a high pressure resistant, high temperature resistant fracturing is with compound bridging plug of fast boring. The utility model is designed for solving the problem that the drillable bridge plug is not applied to the multi-section large-scale fracturing reformation of the horizontal well, a split type slip 3 fixes a slip block on a central tube 1 through a hoop 4, and a cylindrical middle rubber sleeve 8 is sleeved in the middle of the outer wall of the central tube 1; an upper rubber cylinder 7, a split protective umbrella 6 and a cone 5 are sleeved on the upper part of the middle rubber cylinder 8 and the outer wall of the central tube 1 from bottom to top; the lower part of the middle rubber cylinder 8 is sleeved with a lower rubber cylinder 9, a split type protective umbrella 6 and a cone 5 from top to bottom on the outer wall of the central tube 1, the utility model has the advantages of high pressure bearing capacity, strong adaptability, rapid drilling and grinding, light weight and the like.
Description
Technical field: the utility model relates to oil extraction in oil field engineering field, the quick drill a kind of high pressure resistant, high temperature that especially belongs to the extensive volume fracturing transformation of horizontal well grinds composite bridge plug.
Background technology: routine can be bored bridging plug setting accident midway is easily occurred, and quality is larger, is not suitable for high angle hole, horizontal well.At present, due to its structure of bridging plug, properties of materials restriction, be not also applied to the bored bridging plug of the extensive fracturing reform of horizontal well multistage.
Summary of the invention: the utility model provides one to be applicable to the operation of oil gas horizontal well reservoir reconstruction, and after having transformed, the pressure break speed of can quick drill grinding removing is bored composite bridge plug.
The technical solution adopted in the utility model is: it is mainly by central tube, setting throw-out collar, split-type slips, garter spring, cone, split-type umbrella, upper packing element, middle packing element, lower rubber cylinder, guide sub, pump cup assembly and frustrate pin and form, wherein there is external screw thread the lower end of central tube, and the upper end of setting throw-out collar is connected with the outer step surface contact of central tube; Split-type slips is comprised of multiple slip segments, on the slip segment of split-type slips, there is hoop groove, split-type slips is fixed on slip segment on central tube by garter spring, and cone is connected with the contact of split-type umbrella, and columnar middle packing element is enclosed within the middle part of central tube outer wall; The top of middle packing element and the outer wall of central tube overlap from bottom to top have on packing element, split-type umbrella, cone; In the bottom of middle packing element and at the outer wall of central tube, overlap from top to bottom have lower rubber cylinder, split-type umbrella, cone, guide sub connects the bottom of central tube by external screw thread, guide sub and the stressed joint of pump cup assembly cover, frustrate pin and guide sub grafting.
Upper packing element, middle packing element, lower rubber cylinder, pump cup assembly adopt quality of rubber materials, and garter spring adopts nylon fiber material, and the slip segment of split-type slips adopts alloy material.
Guide sub has the multistage milling docking of the bridging plug anti-rotation face of 30 °-60 °.
The utlity model has following advantage: the utility model adopts alloy in lightweight and composite material, make that bridging plug has that bearing capacity is high, strong adaptability, can quick drill mill and the light feature of quality.
Accompanying drawing explanation: Fig. 1 is the utility model structural representation.
The specific embodiment: the utility model is described in further detail below in conjunction with accompanying drawing: it is mainly by central tube 1, setting throw-out collar 2, split-type slips 3, garter spring 4, cone 5, split-type umbrella 6, upper packing element 7, middle packing element 8, lower rubber cylinder 9, guide sub 10, pump cup assembly 11 and frustrate pin 12 and form, wherein there is external screw thread the lower end of central tube 1, and the upper end of setting throw-out collar 2 is connected with the outer step surface contact of central tube 1; Split-type slips 3 is comprised of multiple slip segments, on the slip segment of split-type slips 3, there is hoop groove, split-type slips 3 is fixed on slip segment on central tube 1 by garter spring 4, and cone 5 is connected with 6 contacts of split-type umbrella, and columnar middle packing element 8 is enclosed within the middle part of central tube 1 outer wall; The top of middle packing element 8 and the outer wall of central tube 1 overlap from bottom to top have on packing element 7, split-type umbrella 6, cone 5; In the bottom of middle packing element 8 and at the outer wall of central tube 1, overlap from top to bottom have lower rubber cylinder 9, split-type umbrella 6, cone 5; guide sub 10 connects the bottom of central tube 1 by external screw thread; guide sub 10 overlaps stressed joint with pump cup assembly 11, frustrates pin 12 and pegs graft with guide sub 10.
Upper packing element 7, middle packing element 8, lower rubber cylinder 9, pump cup assembly 11 adopt quality of rubber materials, and garter spring 4 adopts nylon fiber material, and the slip segment of split-type slips 3 adopts ceramic material.
During on-the-spot use, hole is left in the upper end of central tube 1, for pin, is connected with setting instrument, and the upper end of central tube 1 is connected in lower going-into-well with special setting instrument by pin, and hydraulic pump is sent to the position that the transformation of horizontal well oil gas needs shutoff.When setting, under setting instrument urceolus, push away setting throw-out collar 2, setting throw-out collar 2 is to moving down promotion, split-type slips 3 moves down and struts along cone 5, cone 5 moves down and promotes the upper packing element 7 of split-type umbrella 6 compression, middle packing element 8 and lower rubber cylinder 9, go up packing element 7 simultaneously, middle packing element 8 and lower rubber cylinder 9 continue to move down promotion bottom split-type umbrella 6 and bottom cone 5 moves down, bottom cone 5 is compressed bottom split-type slips 3 struts it, packing element 8 in upper packing element 7 compressions is moved in downward trying hard to recommend, packing element 8 during reaction force promotion lower rubber cylinder 9 upwards also compresses, packing element 7 on the effect of these two power is lower, middle packing element 8 and lower rubber cylinder 9 expansions reach the object of shutoff sleeve pipe annular space.Now slips 4 is further by the outer support of cone 4, and split-type slips 3 is stuck on internal surface of sleeve pipe, central tube 1 tension simultaneously, and when stressed acquiring a certain degree, the pin inserting at central tube 1 is pulled off, and completes the setting of bridging plug and gives up.
Claims (3)
1. pressure break is bored composite bridge plug by speed, it is characterized in that: it is mainly by central tube (1), setting throw-out collar (2), split-type slips (3), garter spring (4), cone (5), split-type umbrella (6), upper packing element (7), middle packing element (8), lower rubber cylinder (9), guide sub (10), pump cup assembly (11) and frustrate pin (12) composition, wherein there is external screw thread the lower end of central tube (1), the upper end of setting throw-out collar (2) is connected with the outer step surface contact of central tube (1), split-type slips (3) is comprised of multiple slip segments, on the slip segment of split-type slips (3), there is hoop groove, split-type slips (3) is fixed on slip segment on central tube (1) by garter spring (4), cone (5) is connected with split-type umbrella (6) contact, and columnar middle packing element (8) is enclosed within the middle part of central tube (1) outer wall, on the top of middle packing element (8) and at the outer wall of central tube (1), overlap from bottom to top have upper packing element (7), split-type umbrella (6), cone (5), in the bottom of middle packing element (8) and at the outer wall of central tube (1), overlap from top to bottom have lower rubber cylinder (9), split-type umbrella (6), cone (5), guide sub (10) connects the bottom of central tube (1) by external screw thread, guide sub (10) and the stressed joint of pump cup assembly (11) cover, frustrate pin (12) and peg graft with guide sub (10).
2. pressure break according to claim 1 is bored composite bridge plug by speed, it is characterized in that: upper packing element (7), middle packing element (8), lower rubber cylinder (9), pump cup assembly (11) adopt quality of rubber materials, garter spring (4) adopts nylon fiber material, and the slip segment of split-type slips (3) adopts alloy material.
3. pressure break according to claim 1 is bored composite bridge plug by speed, it is characterized in that: guide sub (10) has the multistage milling docking of the bridging plug anti-rotation face of 30 °-60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320800454.8U CN203559864U (en) | 2013-11-28 | 2013-11-28 | Quick drilling composite bridge plug for fracturing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320800454.8U CN203559864U (en) | 2013-11-28 | 2013-11-28 | Quick drilling composite bridge plug for fracturing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203559864U true CN203559864U (en) | 2014-04-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320800454.8U Expired - Lifetime CN203559864U (en) | 2013-11-28 | 2013-11-28 | Quick drilling composite bridge plug for fracturing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203559864U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989317A (en) * | 2015-06-16 | 2015-10-21 | 中国石油天然气股份有限公司 | Bridge plug for casing fracturing |
| CN105484699A (en) * | 2015-12-07 | 2016-04-13 | 中国石油天然气股份有限公司 | Drilling-free milling bridge plug for fracturing |
| CN105484700A (en) * | 2015-12-07 | 2016-04-13 | 中国石油天然气股份有限公司 | Large-drift-diameter quick drilling bridge plug for fracturing |
| CN105756596A (en) * | 2014-12-17 | 2016-07-13 | 中国石油天然气股份有限公司 | Slips structure and have its bridging plug subassembly |
| CN110107240A (en) * | 2019-04-29 | 2019-08-09 | 成都英诺思科技有限公司 | A kind of pumped downhole ring and pumped downhole device |
| CN115874980A (en) * | 2023-03-08 | 2023-03-31 | 西南石油大学 | Sleeve-proof well cementation rubber plug and assembly method thereof |
-
2013
- 2013-11-28 CN CN201320800454.8U patent/CN203559864U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105756596A (en) * | 2014-12-17 | 2016-07-13 | 中国石油天然气股份有限公司 | Slips structure and have its bridging plug subassembly |
| CN104989317A (en) * | 2015-06-16 | 2015-10-21 | 中国石油天然气股份有限公司 | Bridge plug for casing fracturing |
| CN105484699A (en) * | 2015-12-07 | 2016-04-13 | 中国石油天然气股份有限公司 | Drilling-free milling bridge plug for fracturing |
| CN105484700A (en) * | 2015-12-07 | 2016-04-13 | 中国石油天然气股份有限公司 | Large-drift-diameter quick drilling bridge plug for fracturing |
| CN110107240A (en) * | 2019-04-29 | 2019-08-09 | 成都英诺思科技有限公司 | A kind of pumped downhole ring and pumped downhole device |
| CN110107240B (en) * | 2019-04-29 | 2021-07-20 | 成都英诺思科技有限公司 | Underground pumping ring and underground pumping device |
| CN115874980A (en) * | 2023-03-08 | 2023-03-31 | 西南石油大学 | Sleeve-proof well cementation rubber plug and assembly method thereof |
| CN115874980B (en) * | 2023-03-08 | 2023-05-05 | 西南石油大学 | Anti-sleeve type well cementation rubber plug and assembly method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140423 |
|
| CX01 | Expiry of patent term |