CN202417408U - Hydraulic seat sealing permanent open hole packer - Google Patents
Hydraulic seat sealing permanent open hole packer Download PDFInfo
- Publication number
- CN202417408U CN202417408U CN2011205647560U CN201120564756U CN202417408U CN 202417408 U CN202417408 U CN 202417408U CN 2011205647560 U CN2011205647560 U CN 2011205647560U CN 201120564756 U CN201120564756 U CN 201120564756U CN 202417408 U CN202417408 U CN 202417408U
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- mandrel
- joint
- ring
- slips
- piston
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Abstract
The utility model discloses a hydraulic seat sealing permanent open hole packer. The hydraulic seat sealing permanent open hole packer comprises a mandrel with an axial through hole, wherein one end of the mandrel is connected with a first joint and the other end of the mandrel is connected with a second joint; a left push slip, a first metal expanding bowl, a first auxiliary rubber barrel pressing ring, a first auxiliary rubber barrel, a first spacer ring, a second auxiliary rubber barrel pressing ring, a second auxiliary rubber barrel, a second metal expanding bowl, a cutting ring, a piston and a stop ring are mounted on the mandrel in a sleeving manner sequentially from the first joint; the mandrel is provided with a first pressure transmitting hole and a first slip, which correspond to the left push slip; a supporting ring is arranged between a main rubber barrel and the mandrel; the piston is sleeved with an outer barrel; one end of the outer barrel is connected with the second joint and the other end of the outer barrel is connected with the cutting ring; the mandrel is provided with a second slip corresponding to the piston; the mandrel is also provided with a second pressure transmitting hole; and the second pressure transmitting hole is positioned between the stop ring and the piston. The packer is quick and durable in packing.
Description
Technical field
The utility model relates to oil field straight well or horizontal well barefoot completion segmentation renovation technique field, specifically a kind of hydraulic base sealed permanent type open hole packer.
Background technology
In oilfield process, the segmentation renovation technique of straight well or horizontal well is efficiently to develop low permeability reservoirs, ultralowly oozes, effective well stimulation of unconventional oil-gas reservoirs such as special hypotonic, shale gas reservoir.Owing to straight well multilayer system or horizontal well individual layer system but reason such as horizontal segment length, non-homogeneity be strong, it is not strong to carry out disposable general acidifying or pressure break specific aim, often can not reach the purpose of transformation.And adopt open hole packer to carry out segmentation completion and transformation; Can take modification measures targetedly to each payzone; Or increase, thereby realize that really each payzone Duan Jun reaches the nearly well of effective releasing and stops up, links up the purpose of reservoir with acid strength or increase sand fracturing scale.Open hole packer is one of instrument in the barefoot completion segmentation reforming technology, has played the key operation of packing bore hole reservoir section, has obtained extensive application.In straight well or horizontal well barefoot completion segmentation raising the output transformation process; Transform requirement according to geology, need be lowered to segmentation completion tubular column string and be divided into plurality of sections to bore hole reservoir section, be lowered to open hole packer in the relevant position of completion tubular column string; Correspondence position in the needs transformation is lowered to sliding sleeve (fluid gets into reservoir through sliding sleeve) simultaneously; When the completion tubular column string behind design attitude, packer carries out packing, can realize staged fracturing or acid stimulation operation.
In straight well or horizontal well barefoot completion segmentation raising the output transformation process; Transform requirement according to geology, need be lowered to segmentation completion tubular column string and be divided into plurality of sections to bore hole reservoir section, be lowered to open hole packer in the relevant position of completion tubular column string; Correspondence position in the needs transformation is lowered to sliding sleeve (fluid gets into reservoir through sliding sleeve) simultaneously; When the completion tubular column string behind design attitude, the base sealed packer that builds the pressure, pitching is opened sliding sleeve and can be realized staged fracturing or acid stimulation operation successively.But existing packer all has deficiency.Wherein, inflatable packer: its sealing is restricted because of relevant with the packing element inside and outside differential pressure, and general pressure-bearing difference ability is lower.Meet the liquid swell packers: the first, because of automatic slowly behind its packing element chance liquid expands, stop operation be lowered to process if having etc., produce and meet the risk that liquid expands midway; The second, how many sealing and downhole fluid type, fluids have relation, and instrument is gone in the time of need giving behind the well chien shih, and it fully expands, so long construction period.
In view of above-mentioned existing packer all has weak point, the design people actively studies and innovates, and to found a kind of new type hydraulic seat envelope permanent type open hole packer, makes it have more practicality in barefoot completion segmentation renovation technique field.
The utility model content
In order to solve the problems referred to above that exist in the prior art, the utility model provides a kind of hydraulic base sealed permanent type open hole packer, and the packer of the utility model has the advantages that sealing is quick, sealing is of long duration.
In order to solve the problems of the technologies described above, the utility model has adopted following technical scheme:
Hydraulic base sealed permanent type open hole packer; Comprise mandrel with axially extending bore; One end of mandrel connects first joint; The other end connects second joint, pushes away slips, the first expansion of metal bowl, the first auxilliary packing element pressure ring, the first auxiliary packing element, first spacer ring, main packing element, second spacer ring, the second auxilliary packing element pressure ring, the second auxiliary packing element, the second expansion of metal bowl, shearing ring, piston and locating snap ring from first joint to the second joint socket left side successively on the mandrel; A wherein left end that pushes away slips is between first joint and mandrel; And be slidingly connected with first joint and stem seal; A left side pushes away slips and is connected through first shear pin with first joint; A left side pushes away the common first pressure transmission chamber that forms of the slips and first joint and mandrel, has on the mandrel to be communicated with the first pressure transmission chamber and the first inner pressure transmission hole of mandrel; The inner surface that a left side pushes away slips has the dentation slip insert, and mandrel is provided with and stops a left side to push away first slips with slips tooth that slips moves to the first joint direction; Be provided with support ring between main packing element and the mandrel, support ring is positioned at the middle part of main packing element; The outside at piston is with urceolus; One end of urceolus is connected with second joint sealing; The other end of urceolus is connected through second shear pin with shearing ring; Slipper seal is connected between piston and mandrel and the urceolus, has the dentation slip insert on the inwall of piston, and mandrel is provided with second slips with slips tooth that stops piston to move to the second joint direction; Also have second pressure transmission hole on the said mandrel, said second pressure transmission hole between locating snap ring and piston, said locating snap ring and urceolus and mandrel axial restraint.
Further, a said left side pushes away between the slips and first joint, and a left side pushes away and is respectively arranged with first O-ring seals between slips and the mandrel and seals.
Further, being provided with second O-ring seals between said piston and urceolus and the mandrel seals.
Further, through being set, the 3rd O-ring seals seals between the said urceolus and second joint.
Further, between said mandrel and first joint and second joint for being threaded.
Compared with prior art, the beneficial effect of the utility model is:
The hydraulic base sealed permanent type open hole packer of the utility model transmits hydraulic pressure through first pressure transmission hole and second pressure transmission hole; And then promote to be enclosed within a left side on the mandrel and push away slips and piston and cut off shear pin separately and move the packing element Expansion sealing bore hole reservoir section in the middle part of the mechanical presses power of generation finally makes and is positioned to the middle part.Simultaneously, the dentalation that has slip insert of design makes not deblocking of a main packing element of being honored as a queen, and bearing capacity is high; Seat envelope process is accomplished the save operation time in moment.Structure design is ingenious, reliable, can guarantee each payzone section security implementation operation to horizontal well or the effective packing of straight well bore hole reservoir section through overtesting.
Description of drawings
Fig. 1 partly cuts open figure for the structure of the hydraulic base sealed permanent type open hole packer of utility model.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail, but not as the qualification to the utility model.
Fig. 1 partly cuts open figure for the structure of the hydraulic base sealed permanent type open hole packer of utility model.As shown in Figure 1; Hydraulic base sealed permanent type open hole packer; Comprise mandrel 17 with axially extending bore; One end of mandrel 17 connects first joint 1; The other end connects second joint 18, pushes away the auxilliary packing element pressure ring of the auxiliary packing element of the auxiliary packing element of the auxilliary packing element pressure ring of slips 3, the first expansion of metal bowl 5, first 19, first 6, first spacer ring 7, main packing element 9, second spacer ring 20, second 21, second 10, the second expansion of metal bowl 11, shearing ring 12, piston 14 and locating snap ring 15 from first joint, 1 to second joint 18 a socket left side successively on the mandrel 17; A wherein left end that pushes away slips 3 is between first joint 1 and mandrel 17; And be dynamically connected with mandrel 17 sealed sliding with first joint 1; A left side pushes away slips 3 and is connected through first shear pin 2 with first joint 1; A left side pushes away slips 3 and first joint 1 and the mandrel common first pressure transmission chambers 22 that form 17, has first pressure transmission hole 23 that is communicated with the first pressure transmission chamber 22 and mandrel 17 inside on the mandrel 17; The inner surface that a left side pushes away slips 3 has dentation slip insert 24, and mandrel 17 is provided with and stops a left side to push away first slips 4 with slips tooth that slips 3 moves to first joint, 1 direction; Be provided with support ring 8 between main packing element 9 and the mandrel 17, support ring 8 is positioned at the middle part of main packing element 9; Be with urceolus 16 in the outside of piston 14; One end of urceolus 16 and second joint 18 are tightly connected; The other end of urceolus 16 is connected through second shear pin 13 with shearing ring 12; Slipper seal is connected between piston 14 and mandrel 17 and the urceolus 16, has dentation slip insert 25 on the inwall of piston 14, and mandrel 17 is provided with second slips 26 with slips tooth that stops piston 14 to move to second joint, 18 directions; Also have second pressure transmission hole, 27, the second pressure transmission hole positions 27 on the mandrel 17 between locating snap ring 15 and piston 14, locating snap ring 15 and urceolus 16 and mandrel 17 axial restraints.A left side pushes away between the slips 3 and first joint 1, and a left side pushes away and is respectively arranged with first O-ring seals 28 between slips 3 and the mandrel 17 and seals.Being respectively equipped with second O-ring seals 29 between piston 14 and urceolus 16 and the mandrel 17 seals.Through being set, the 3rd O-ring seals 30 seals between the urceolus 16 and second joint 18.Between mandrel 17 and first joint 1 and second joint 18 for being threaded.1 female joint of first joint, second joint 18 is male joint.
The method for using of the hydraulic base sealed permanent type open hole packer of the utility model comprises the steps:
A. above-mentioned packer is inserted completion tubular column, second joint of wherein said packer is through the pit shaft barrier valve of oil pipe connecting band ball seat, and first joint is connected with oil pipe or drilling rod;
B. said packer is delivered to the downhole designs position, drop into through drilling rod or oil pipe on the ball seat of seat blocking to pit shaft barrier valve;
C. suppress from oil pipe or drilling rod; Pressure is delivered to a left side respectively through first pressure transmission hole 23 on the mandrel 17 and second pressure transmission hole 27 and pushes away on slips 3 and the piston 14, and after pressure reached shear force, first shear pin 2 and second shear pin 13 were cut off respectively; A left side pushes away slips 3 and under effect, moves to the middle part of mandrel 17 vertically respectively at pressure with piston 14; Final pressure is passed to the both sides of main packing element 9, makes main packing element 9 receive compression swelling, finally forms seal pack;
D. simultaneously, a left side pushes away slips 3 and the 4 mutual interlocks of first slips, stops a left side to push away slips 3 and moves to first joint, 1 direction; The piston 14 and second slips 26 are engaged; Stop piston 14 to move, thereby stop main packing element 9 resiliences, form lasting packing to second joint, 18 directions.
Above embodiment is merely the exemplary embodiment of the utility model, is not used in restriction the utility model, and the protection domain of the utility model is defined by the claims.Those skilled in the art can make various modifications or be equal to replacement the utility model in the essence and protection domain of the utility model, this modification or be equal to replacement and also should be regarded as dropping in the protection domain of the utility model.
Claims (6)
1. hydraulic base sealed permanent type open hole packer; It is characterized in that; Comprise mandrel with axially extending bore; One end of mandrel connects first joint, and the other end connects second joint, pushes away slips, the first expansion of metal bowl, the first auxilliary packing element pressure ring, the first auxiliary packing element, first spacer ring, main packing element, second spacer ring, the second auxilliary packing element pressure ring, the second auxiliary packing element, the second expansion of metal bowl, shearing ring, piston and locating snap ring from first joint to the second joint socket left side successively on the mandrel; A wherein left end that pushes away slips is between first joint and mandrel; And be slidingly connected with first joint and stem seal; A left side pushes away slips and is connected through first shear pin with first joint; A left side pushes away the common first pressure transmission chamber that forms of the slips and first joint and mandrel, has on the mandrel to be communicated with the first pressure transmission chamber and the first inner pressure transmission hole of mandrel; The inner surface that a left side pushes away slips has the dentation slip insert, and mandrel is provided with and stops a left side to push away first slips with slips tooth that slips moves to the first joint direction; Be provided with support ring between main packing element and the mandrel, support ring is positioned at the middle part of main packing element; The outside at piston is with urceolus; One end of urceolus is connected with second joint sealing; The other end of urceolus is connected through second shear pin with shearing ring; Slipper seal is connected between piston and mandrel and the urceolus, has the dentation slip insert on the inwall of piston, and mandrel is provided with second slips with slips tooth that stops piston to move to the second joint direction; Also have second pressure transmission hole on the said mandrel, said second pressure transmission hole between locating snap ring and piston, said locating snap ring and urceolus and mandrel axial restraint.
2. hydraulic base sealed permanent type open hole packer according to claim 1 is characterized in that, a said left side pushes away between the slips and first joint, and a left side pushes away and is respectively arranged with first O-ring seals between slips and the mandrel and seals.
3. hydraulic base sealed permanent type open hole packer according to claim 1 is characterized in that, is provided with second O-ring seals between said piston and urceolus and the mandrel and seals.
4. hydraulic base sealed permanent type open hole packer according to claim 1 is characterized in that, seals through the 3rd O-ring seals is set between the said urceolus and second joint.
5. hydraulic base sealed permanent type open hole packer according to claim 1 is characterized in that, between said mandrel and first joint and second joint for being threaded.
6. hydraulic base sealed permanent type open hole packer according to claim 1 is characterized in that said first joint is female joint, and said second joint is male joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205647560U CN202417408U (en) | 2011-12-29 | 2011-12-29 | Hydraulic seat sealing permanent open hole packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205647560U CN202417408U (en) | 2011-12-29 | 2011-12-29 | Hydraulic seat sealing permanent open hole packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202417408U true CN202417408U (en) | 2012-09-05 |
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ID=46742181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205647560U Expired - Lifetime CN202417408U (en) | 2011-12-29 | 2011-12-29 | Hydraulic seat sealing permanent open hole packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202417408U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103184848A (en) * | 2011-12-29 | 2013-07-03 | 安东石油技术（集团）有限公司 | Hydraulic seat seal permanent open hole packer and open hole well-completion packing method |
| CN111927382A (en) * | 2020-08-07 | 2020-11-13 | 中国石油大学(北京) | Packer (CN) |
-
2011
- 2011-12-29 CN CN2011205647560U patent/CN202417408U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103184848A (en) * | 2011-12-29 | 2013-07-03 | 安东石油技术（集团）有限公司 | Hydraulic seat seal permanent open hole packer and open hole well-completion packing method |
| CN103184848B (en) * | 2011-12-29 | 2015-09-30 | 安东石油技术（集团）有限公司 | Hydraulic base sealed permanent type open hole packer and barefoot completion packing method |
| CN111927382A (en) * | 2020-08-07 | 2020-11-13 | 中国石油大学(北京) | Packer (CN) |
| CN111927382B (en) * | 2020-08-07 | 2022-04-29 | 中国石油大学(北京) | Packer (CN) |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: JILIN DONGXIN PETROLEUM ENGINEERING TECHNOLOGY CO., LTD. Assignor: Anton Oilfield Services (Group) Ltd. Contract record no.: 2012990000907 Denomination of utility model: Hydraulic seat seal permanent open hole packer and open hole well-completion packing method Granted publication date: 20120905 License type: Exclusive License Record date: 20121221 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120905 |