CN2654845Y - Built in bag type leaking stoppage apparatus - Google Patents
Built in bag type leaking stoppage apparatus Download PDFInfo
- Publication number
- CN2654845Y CN2654845Y CN 200320114902 CN200320114902U CN2654845Y CN 2654845 Y CN2654845 Y CN 2654845Y CN 200320114902 CN200320114902 CN 200320114902 CN 200320114902 U CN200320114902 U CN 200320114902U CN 2654845 Y CN2654845 Y CN 2654845Y
- Authority
- CN
- China
- Prior art keywords
- endoporus
- inner sleeve
- hypomere
- epimere
- guide shoe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Fluid-Damping Devices (AREA)
Abstract
The utility model relates to a built-in bag type leakage stoppage device, which belongs to the technical field of sealing or partitioning in well. The technical proposal aims to provide an external bag type leakage stoppage device with simple structure and convenient operation, comprising an upper connector, an outer sleeve, a plurality of guide shoes, an inner sleeve, a seal sleeve seat, a piston ring and a bag net. A lower segment of the top connector is connected with an upper segment of an outer sleeve; a lower end of the outer sleeve is contacted with the upper end surface of the guide shoes. An upper segment of the inner sleeve is connected with the lower segment of the top connector, a seal sleeve seat is arranged on the upper segment of an inner bore of the guide shoes, the upper segment of the guide shoe is connected with the lower segment of the inner sleeve through pin connection, The pin connection is arranged between the seal sleeve seat and the guide shoes. The bushing is arranged on the lower segment outside of the inner sleeve. The piston ring is arranged between the outer sleeve and the inner sleeve on the bushing. The sleeve is arranged on the inner sleeve outside on the piston ring. The bag net is arranged between the lower end of the piston ring and upper end of the guide shoes. The utility model is used for leakage stoppage of well and has the advantages of best effectiveness, simple structure and effective leakage stoppage.
Description
Technical field
The utility model belongs to sealing or the packing device technical field in the well-drilling borehole.
Background technology
In drillng operation, if occur the crack in the well or the cave should be carried out leak stopping immediately.Prior art Chinese patent ZL95113228.8 " a kind of compound leakage stop agent for drilling " carry out leak stopping with sealing agent and bulk, thread, only are applicable to the leak stopping in gap or little cave.Leak stopping for large fracture or cavern is then powerless, needs to use pocket type leak stopping device to carry out leak stopping.
Summary of the invention
Technical problem to be solved provides a kind of easy to operate built-in pocket type leak stopping device simple in structure.
The technical scheme that solves its technical problem is as follows: built-in pocket type leak stopping device comprises top connection, outer sleeve, guide shoe, inner sleeve, sealing block set, piston ring and landing net.The endoporus epimere of top connection, hypomere and appearance hypomere all have screw thread, and the internal thread of endoporus epimere is connected with the external screw thread of the hypomere of caulking tube string minor details drilling rod, and the screw thread of top connection appearance hypomere is connected with the internal thread of outer sleeve endoporus epimere.The lower surface of outer sleeve and appearance are that the upper surface of hemispheric guide shoe contacts.The endoporus of guide shoe is divided into three sections, and endoporus epimere internal diameter is bigger, and the hypomere internal diameter is less, and the endoporus stage casing is up big and down small round taper hole, and the bottom diameter of round taper hole equates that with endoporus hypomere internal diameter the upper-end inner diameter of round taper hole equals the internal diameter of seal sleeve endoporus.The inner sleeve epimere has external screw thread to be connected with the internal thread of top connection endoporus hypomere, and there is fluid bore in the stage casing.The sealing block set is contained in the endoporus epimere of guide shoe, and the upper end of sealing block set and the hypomere of inner sleeve join, and connect with pin between the two.The appearance of sealing block set is divided into two sections, the external diameter of hypomere is slightly smaller than the internal diameter of guide shoe endoporus epimere, the epimere external diameter equals the inner sleeve external diameter, form stopping step between two sections, the internal diameter of sealing block set equates that with the internal diameter of inner sleeve endoporus the hypomere of sealing block set is connected with the guide shoe pin with the epimere of guide shoe.Lining is contained in the outside of the hypomere of inner sleeve, and its lower end contacts with the bottom surface of guide shoe epimere, and the upper end contacts with the lower surface of piston ring.The external diameter of piston ring is slightly less than the internal diameter of outer sleeve, and its internal diameter is slightly larger than the external diameter of inner sleeve, is contained between outer sleeve inwall and the inner sleeve outer wall in the lining upper end.The lining internal diameter is slightly larger than the inner sleeve external diameter, is contained between the lower surface of the upper surface of piston ring and top connection, and fluid bore porose and on the inner sleeve communicates on it.The landing net upper end is contained on the lower surface of piston ring with lanyard, and the lower end is contained on the upper surface of guide shoe epimere.
Its operative scenario is as follows: during drilling well generation leakage, the leak stopping device down to the leakage place, is unloaded kelly bar, carry out pitching, ball is fallen the round taper hole place in guide shoe endoporus stage casing always.Turn on pump boosts then, and the fluid bore of pressure by the inner sleeve stage casing is added on the upper surface of piston ring and by piston ring and lining and is added on the guide shoe, cuts off the guide shoe pin, and piston ring promptly moves down, till arriving the stopping step place.Guide shoe promptly is being with landing net to drop to the leakage place, can carry out plugging operations, and liquid enters the crack to landing net together or leakage is blocked in the cave along with leaving out only.After leakage-stop liquid has been annotated, on carry drilling tool, the landing net lanyard is promptly broken.
Beneficial effect: the utility model is applied to drilling leakage blockage.Its beneficial effect is effectively to stop up large fracture and cavern, and structure tube list is easy to operate, can save man-hour and construction cost.
Description of drawings
Fig. 1 is the utility model structure chart.Be described as follows: 1 is top connection, and 2 is outer sleeve, and 3 is guide shoe, and 4 is inner sleeve, and 5 are the sealing block set, and 6 is piston ring, and 7 is landing net, and 8 is fluid bore, and 9 is pin, and 10 is stopping step, and 11 for guide shoe cuts off, and 12 is lining, and 13 is lining, and 14 is lanyard.
The specific embodiment
A specific embodiment is as follows: the endoporus epimere of top connection 1 is connected with caulking tube string minor details drilling rod, and its appearance hypomere is connected with outer sleeve 2 endoporus epimeres.The lower end of outer sleeve 2 contacts with the upper surface of guide shoe 3.The epimere of inner sleeve 4 is connected with the endoporus hypomere of top connection 1, and there is fluid bore 8 in its stage casing.Sealing block set 5 is contained in the endoporus epimere of guide shoe 3, the hypomere of its epimere and inner sleeve 4 joins, connecting with pin 9 between the two, be stopping step 10 between two sections appearances of sealed socket sleeve 5, cuts off 11 with guide shoe between the hypomere that seals block set 5 and guide shoe 3 epimeres and is connected.Lining 12 is contained in the outside of sealing block set 5.Piston ring 6 is contained between outer sleeve 2 inwalls and inner sleeve 4 outer walls above the lining 12.Lining 13 is contained in inner sleeve 4 outsides between the lower surface of piston ring 6 upper surfaces and top connection 1, porosely on it communicates with the fluid bore of inner sleeve.The upper end of landing net 7 with lanyard 14 and piston ring 6 the lower surface be connected, the lower end is contained on the upper surface of guide shoe 3 epimeres.
Claims (1)
1. built-in pocket type leak stopping device is characterized in that comprising top connection (1), outer sleeve (2), guide shoe (3), inner sleeve (4), sealing block set (5), piston ring (6) and landing net (7); The endoporus epimere of top connection (1), hypomere and appearance hypomere all have screw thread, and the endoporus epimere is connected with the hypomere of the minor details drilling rod of caulking tube string, and the endoporus epimere of the appearance hypomere of top connection (1) and outer sleeve (2) is to be threaded; The lower surface of outer sleeve (2) contacts with the upper surface of the hemispherical hypomere of guide shoe (3); The endoporus of guide shoe (3) is divided into three sections, endoporus epimere internal diameter is bigger, and endoporus hypomere internal diameter is less, and the endoporus stage casing is up big and down small round taper hole, the bottom diameter of round taper hole equates that with endoporus hypomere internal diameter upper-end inner diameter equates with the endoporus internal diameter of sealing block set (5); The epimere of inner sleeve (4) has external screw thread to be connected with the internal thread of top connection (1) endoporus hypomere, and there is fluid bore (8) in the stage casing; Sealing block set (5) is contained in guide shoe (3) the endoporus epimere, the epimere of sealing block set (5) combines with the hypomere of inner sleeve (4), connect with pin (9) between the two, the appearance of sealing block set (5) is divided into two sections, the external diameter of hypomere is slightly less than guide shoe (3) endoporus epimere internal diameter, the external diameter of epimere equals the external diameter of inner sleeve, is stopping step (10) between two sections, and the endoporus internal diameter of sealing block set (5) equates with the endoporus internal diameter of inner sleeve (4); Be connected with guide shoe pin (11) between on lower end and the guide shoe (3) of sealing block set (5); Lining (12) is contained in the outside of the hypomere of inner sleeve (4), and its lower end contacts with the bottom surface of the epimere of guide shoe (3), and the upper end contacts with the lower surface of piston ring (6); The external diameter of piston ring (6) is slightly less than the internal diameter of outer sleeve (2), and the internal diameter of piston ring (6) is slightly larger than the external diameter of inner sleeve (4), and piston ring (6) is positioned between the outer wall of the inwall that is contained in outer sleeve (2) above the lining (12) and inner sleeve (4); The internal diameter of lining (13) is slightly larger than the external diameter of inner sleeve (4), is contained in the outside of the inner sleeve (4) between the lower surface of the upper surface of piston ring (6) and top connection (1), and the hole that communicates with fluid bore (8) on the inner sleeve (4) is arranged on the lining (13); The upper end of landing net (7) is connected with the lower surface of lanyard (14) with piston ring (6), and the lower end of landing net (7) is contained on the upper surface of epimere of guide shoe (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320114902 CN2654845Y (en) | 2003-10-24 | 2003-10-24 | Built in bag type leaking stoppage apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320114902 CN2654845Y (en) | 2003-10-24 | 2003-10-24 | Built in bag type leaking stoppage apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2654845Y true CN2654845Y (en) | 2004-11-10 |
Family
ID=34345624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320114902 Expired - Fee Related CN2654845Y (en) | 2003-10-24 | 2003-10-24 | Built in bag type leaking stoppage apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2654845Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102337861A (en) * | 2011-10-27 | 2012-02-01 | 安徽省地质矿产勘查局313地质队 | Drilling hole wall molding forming device |
| CN102337859A (en) * | 2011-09-20 | 2012-02-01 | 山西潞安环保能源开发股份有限公司 | Coal field drill hole leak blocking system |
| CN109025897A (en) * | 2018-10-22 | 2018-12-18 | 吉林大学 | A kind of interior co-volume device for plugging that foams of well |
| CN105971555B (en) * | 2016-05-05 | 2019-03-29 | 中国石油集团渤海钻探工程有限公司 | A kind of leak stopping cylinder and plugging slurry joint blocking method for fractured reservoir |
| CN113622859A (en) * | 2020-05-09 | 2021-11-09 | 中国石油天然气集团有限公司 | Leakage stopping tool |
-
2003
- 2003-10-24 CN CN 200320114902 patent/CN2654845Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102337859A (en) * | 2011-09-20 | 2012-02-01 | 山西潞安环保能源开发股份有限公司 | Coal field drill hole leak blocking system |
| CN102337859B (en) * | 2011-09-20 | 2014-06-04 | 山西潞安环保能源开发股份有限公司 | Coal field drill hole leak blocking system |
| CN102337861A (en) * | 2011-10-27 | 2012-02-01 | 安徽省地质矿产勘查局313地质队 | Drilling hole wall molding forming device |
| CN105971555B (en) * | 2016-05-05 | 2019-03-29 | 中国石油集团渤海钻探工程有限公司 | A kind of leak stopping cylinder and plugging slurry joint blocking method for fractured reservoir |
| CN109025897A (en) * | 2018-10-22 | 2018-12-18 | 吉林大学 | A kind of interior co-volume device for plugging that foams of well |
| CN113622859A (en) * | 2020-05-09 | 2021-11-09 | 中国石油天然气集团有限公司 | Leakage stopping tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |