CN201087724Y - Multifunctional packer - Google Patents
Multifunctional packer Download PDFInfo
- Publication number
- CN201087724Y CN201087724Y CNU2007200148593U CN200720014859U CN201087724Y CN 201087724 Y CN201087724 Y CN 201087724Y CN U2007200148593 U CNU2007200148593 U CN U2007200148593U CN 200720014859 U CN200720014859 U CN 200720014859U CN 201087724 Y CN201087724 Y CN 201087724Y
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- axle
- joint
- bypass
- ring
- slips
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Abstract
The utility model relates to a packing tool which is used for downhole operation in the oilfield, in particular to a packer with multi-function of fracturing, testing and pumping. The packer comprises upper and lower joints and a mandrel. Two ends of the mandrel are respectively connected with the upper and lower joints to form a tubular structure. A bypass mechanism, a sealing mechanism and a transposition mechanism are orderly sleeved and connected on the mandrel between the upper and lower joints from the upper part to the lower part. The mandrel can make up-down reciprocating motion in the bypass mechanism, the sealing mechanism and the transposition mechanism. A bypass hole and a seat seal are sealed via the movement of the mandrel. The utility model can operate and control the switch of the packer by dint of the up-down motion of a drill pipe or an oil manifold, has the advantages of convenient operation, flexible and reliable motion. The utility model has functions of fracturing, testing and pumping at the same time of combining the integrated features of various packers. Time of replacing a single-function packer can be saved and the work efficiency can be improved. Labor intensity can be reduced and the need of the downhole operation for the multifunctional tool can be largely improved.
Description
Technical field
The utility model relates to oil field underground work packing instrument, specifically a kind of Multifunction packer that has pressure break, test and pumping simultaneously.
Background technology
When oilfield downhole operation, can often use packer.The most function singleness of existing packer can not possess pressure break, test, pumping function simultaneously, and for example anchor packer only is applicable to test, and the hydraulic anchor packer can not be finished pumping work again.If run into the situation that needs continuous conversion underground work, can only change packer, so, both increased working strength, reduced operating efficiency again.Therefore, how solving the packer function singleness is a problem demanding prompt solution to adapt to the down-hole different work.
The utility model content
In order to solve the problem of existing packer function singleness, the purpose of this utility model is to provide a kind of Multifunction packer that has pressure break, test, pumping simultaneously.
The purpose of this utility model is achieved through the following technical solutions:
The utility model comprises upper and lower joint and axle, and the two ends of axle connect into tubular structure with upper and lower joint respectively; On the axle between the upper and lower joint, be socketed with bypass mechanism, sealing mechanism and inversion mechanism from top to bottom successively, axle can move back and forth up and down in bypass mechanism, sealing mechanism and inversion mechanism, the hydrodynamic reciprocating sealing by-pass prot by axle and setting.
Wherein: described bypass mechanism comprises bypass urceolus and sealing lip joint, and the bypass urceolus is socketed on the axle, has by-pass prot on it, and the sealing lip joint is positioned at the below of bypass urceolus; Between axle and bypass urceolus, be provided with seal; Described seal is made up of dummy piston, seal nipple and joint ring, and joint ring is threadedly connected to the external surface of seal nipple, the seal nipple that has a joint ring be threadedly connected to axle, with its interlock, the external surface of joint ring is connected to the inwall of bypass urceolus; Dummy piston is between bypass urceolus and seal nipple and joint ring; Described sealing mechanism comprises packing element axle, lower slips tube, adapter sleeve, slips and brake pad outer barrel assembly, one end of packing element axle is connected with sealing lip joint screw thread in the bypass mechanism, the outside is with the jack rabbit ring, the other end links to each other with adapter sleeve by the lower slips tube, is with jack rabbit ring down in the outside, junction of packing element axle and lower slips tube; On the packing element axle between the upper and lower jack rabbit ring, be provided with pressurized and can support elastomeric element in internal surface of sleeve pipe; The adapter sleeve external surface is arranged with slips, and the other end of adapter sleeve is threaded with the brake pad outer barrel assembly; Described elastomeric element is made up of a plurality of spacer rings and packing element, and both alternately are set on the packing element axle, and two ends are by packing element and upper and lower jack rabbit ring butt; Be connected with the slips spring on the brake pad outer barrel assembly, its other end connects slips, and slips is fixed; The outside of brake pad outer barrel assembly also is provided with brake pad, and butt has the brake pad spring between the two; Described inversion mechanism is connected to form by transposition outer barrel assembly and lower contact, and an end of transposition outer barrel assembly is threaded with the brake pad outer barrel assembly in the sealing mechanism, and the other end is threaded with lower contact; Between top connection and the axle, between dummy piston and the axle, between dummy piston and the bypass urceolus, between joint ring and the bypass urceolus, between sealing lip joint and the axle, between sealing lip joint and the packing element axle and be equipped with O-ring seals between lower contact and the axle.
Advantage of the present utility model and good effect are:
The switch of packer is operated and controlled to the utility model by the upper and lower motion of drilling rod or oil pipe, has easy to operate, the reliable advantage of flexible movements; Combine the comprehensive characteristics of multiple packer, can have pressure break, test, pumping function simultaneously, save the time of changing the function singleness packer, improve operating efficiency, reduced staff's labour intensity, improved the multi-functional needs of underground work greatly instrument.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Wherein: 1 is top connection, and 2 is O-ring seals, and 3 is axle, 4 is dummy piston, and 5 is seal nipple, and 6 is joint ring, 7 is the bypass urceolus, and 8 is the sealing lip joint, and 9 is last jack rabbit ring, 10 is the packing element axle, and 11 is spacer ring, and 12 is packing element, 13 are following jack rabbit ring, and 14 is the lower slips tube, and 15 is adapter sleeve, 16 is slips, 17 is the slips spring, and 18 is slotted cheese head screw, and 19 is the brake pad outer barrel assembly, 20 is brake pad, 21 is the brake pad spring, and 22 is holding screw, and 23 are the transposition outer barrel assembly, 24 are lower contact, and 25 are by-pass prot.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, the utility model comprises upper and lower joint 1,24 and axle 3, and the two ends of axle 3 connect into tubular structure with upper and lower joint 1,24 respectively.On the axle 3 between the upper and lower joint 1,24, be socketed with bypass mechanism, sealing mechanism and inversion mechanism from top to bottom successively, axle 3 can move back and forth up and down in bypass mechanism, sealing mechanism and inversion mechanism, the hydrodynamic reciprocating sealing by-pass prot by axle 3 and setting.
Bypass mechanism comprises bypass urceolus 7 and sealing lip joint 8, and bypass urceolus 7 is socketed on the axle 3, has by-pass prot 25 on it, and sealing lip joint 8 is positioned at the below of bypass urceolus 7, and both are threaded, for downhole testing provides bypass function.Between axle 3 and bypass urceolus 7, be provided with dummy piston 4, seal nipple 5 and joint ring 6, joint ring 6 is threadedly connected to the external surface of seal nipple 5, the seal nipple 5 that has a joint ring 6 be threadedly connected to axle 3, with its interlock, the external surface of joint ring 6 is connected to the inwall of bypass urceolus 7.Dummy piston 4 is between bypass urceolus 7 and seal nipple 5 and joint ring 6.
Sealing mechanism comprises packing element axle 10, lower slips tube 14, adapter sleeve 15, slips 16 and brake pad outer barrel assembly 19, one end of packing element axle 10 is threaded with sealing lip joint 8 in the bypass mechanism, the outside is with jack rabbit ring 9, the other end links to each other with adapter sleeve 15 by lower slips tube 14, the outside, junction at packing element axle 10 and lower slips tube 14 is with jack rabbit ring 13 down, is threaded with lower slips tube 14.Be provided with a plurality of spacer rings 11 and packing element 12 on the packing element axle 10 between the upper and lower jack rabbit ring 9,13, both alternately are set on the packing element axle 10, and two ends are by packing element 12 and upper and lower jack rabbit ring 9,13 butts.Adapter sleeve 15 external surfaces are arranged with slips 16, and the other end of adapter sleeve 15 is threaded with brake pad outer barrel assembly 19.Be connected with slips spring 17 on brake pad outer barrel assembly 19, its other end connects slips 16, and slips 16 is fixing.The outside of brake pad outer barrel assembly 19 also is provided with brake pad 20, and butt has brake pad spring 21 between the two, is applicable to underground fracture pumping function.
Inversion mechanism is connected to form with lower contact 24 by transposition outer barrel assembly 23, one end of transposition outer barrel assembly 23 is threaded with the brake pad outer barrel assembly 19 in the sealing mechanism, the other end is threaded with lower contact 24, and realization axle 3 moves up and down to control and sets and deblocking.
Between top connection 1 and the axle 3, between dummy piston 4 and the axle 3, between dummy piston 4 and the bypass urceolus 7, between joint ring 6 and the bypass urceolus 7, be equipped with O-ring seals 2, assurance sealing separately between sealing lip joint 8 and the axle 3, between sealing lip joint 8 and the packing element axle 10 and between lower contact 24 and the axle 3.
Installation process of the present utility model is:
At first joint ring 6 is threadedly connected to seal nipple 5, again both is inserted in axle 3 in the lump, be threaded with axle 3 by seal nipple 5.Dummy piston 4 and bypass urceolus 7 are inserted in axle 3 successively, and push away bypass urceolus 7 downwards, dummy piston 4 is pushed against seal nipple 5 and joint ring 6, dummy piston 4, seal nipple 5 and joint ring 6 are placed in the bypass urceolus 7.Be inserted in sealing lip joint 8 then, be threaded with bypass urceolus 7.Be inserted in packing element axle 10, the one end is threaded with sealing lip joint 8, and is inserted in jack rabbit ring 9 in the outside, is threaded with sealing lip joint 8.Be inserted in 90 ° of packing elements 12,11,70 ° of packing elements 12 of spacer ring, 11,90 ° of packing elements 12 of spacer ring successively, be inserted in lower slips tube 14 again, the one end is threaded with packing element axle 10, and under the outside cover jack rabbit ring 13, be threaded with this end of lower slips tube 14; A be threaded end of adapter sleeve 15 of the other end of lower slips tube 14.Adapter sleeve 15 is threaded with brake pad outer barrel assembly 19 usefulness, and the slips 16 of packing in adapter sleeve 15 outsides, and is fixing with slips spring 17, slips spring 17 usefulness slotted cheese head screws 18 is fixed on the brake pad outer barrel assembly 19 again.Pack in brake pad outer barrel assembly 19 outsides then brake pad 20 and brake pad spring 21, brake pad spring 21 is connected on brake pad outer barrel assembly 19 and the brake pad 20.Be inserted in transposition outer barrel assembly 23 and lower contact 24, lower contact 24 is threadedly connected to axle 3.One end of transposition outer barrel assembly 23 is threaded with brake pad outer barrel assembly 19, and fixing with holding screw 22, and the other end is threaded with lower contact 24.At last, top connection 1 is threaded with axle 3.
The utility model utilizes brake pad spring 21 that brake pad 20 is supportted in internal surface of sleeve pipe with after downhole tool or oil pipe are connected, down to the down-hole.During work, drilling rod or oil pipe center roller 3 are exerted pressure downwards, and axle 3 is moved down, and utilize lower slips tube 14 that slips 16 is opened, and support internal surface of sleeve pipe.Continue to press down, under the drive of axle 3, move down, utilize between seal nipple 5, joint ring 6 and the sealing lip joint 8,, realize the purpose of sealing bypass by-pass prot 25 sealings to the compression of caulking gum with the seal nipple 5 and the joint ring 6 of axle 3 interlocks.Continue to press down, Yin Kawa 16 has supported internal surface of sleeve pipe again, so packing element 12 expansions, supports in internal surface of sleeve pipe, reaches the purpose that sets.During deblocking, on carry drilling rod or oil pipe, by-pass prot 25 is opened, balance pressure reduction.Carry in the continuation, packing element 12 shrinks, and carries on continuing again, and slips 16 is regained the instrument deblocking.
The utility model upper and lower end all adopts the tubing thread screw thread.
The utility model is applicable to multiple media such as down-hole oil reservoir, water layer, natural gas, and functions such as pressure break, test, pumping are provided when formation testing.
Claims (8)
1. Multifunction packer, it is characterized in that: comprise upper and lower joint (1,24) and axle (3), the two ends of axle (3) connect into tubular structure with upper and lower joint (1,24) respectively; On the axle (3) between the upper and lower joint (1,24), be socketed with bypass mechanism, sealing mechanism and inversion mechanism from top to bottom successively, axle (3) can move back and forth up and down in bypass mechanism, sealing mechanism and inversion mechanism, the hydrodynamic reciprocating sealing by-pass prot by axle (3) and setting.
2. by the described Multifunction packer of claim 1, it is characterized in that: described bypass mechanism comprises bypass urceolus (7) and sealing lip joint (8), bypass urceolus (7) is socketed on the axle (3), has by-pass prot (2 5) on it, and sealing lip joint (8) is positioned at the below of bypass urceolus (7); Between axle (3) and bypass urceolus (7), be provided with seal.
3. by the described Multifunction packer of claim 2, it is characterized in that: described seal is made up of dummy piston (4), seal nipple (5) and joint ring (6), joint ring (6) is threadedly connected to the external surface of seal nipple (5), the seal nipple (5) that has joint ring (6) be threadedly connected to axle (3), with its interlock, the external surface of joint ring (6) is connected to the inwall of bypass urceolus (7); Dummy piston (4) is positioned between bypass urceolus (7) and seal nipple (5) and the joint ring (6).
4. by the described Multifunction packer of claim 1, it is characterized in that: described sealing mechanism comprises packing element axle (10), lower slips tube (14), adapter sleeve (15), slips (16) and brake pad outer barrel assembly (19), one end of packing element axle (10) is threaded with sealing lip joint (8) in the bypass mechanism, the outside is with jack rabbit ring (9), the other end links to each other with adapter sleeve (15) by lower slips tube (14), is with jack rabbit ring (13) down in the outside, junction of packing element axle (10) and lower slips tube (14); On the packing element axle (10) between the upper and lower jack rabbit ring (9,13), be provided with pressurized and can support elastomeric element in internal surface of sleeve pipe; Adapter sleeve (15) external surface is arranged with slips (16), and the other end of adapter sleeve (15) is threaded with brake pad outer barrel assembly (19).
5. by the described Multifunction packer of claim 4, it is characterized in that: described elastomeric element is made up of a plurality of spacer rings (11) and packing element (12), both alternately are set on the packing element axle (10), and two ends are by packing element (12) and upper and lower jack rabbit ring (9,13) butt.
6. by the described Multifunction packer of claim 4, it is characterized in that: be connected with slips spring (17) on brake pad outer barrel assembly (19), its other end connects slips (16), and slips (16) is fixing; The outside of brake pad outer barrel assembly (19) also is provided with brake pad (20), and butt has brake pad spring (21) between the two.
7. by the described Multifunction packer of claim 1, it is characterized in that: described inversion mechanism is connected to form by transposition outer barrel assembly (23) and lower contact (24), one end of transposition outer barrel assembly (23) is threaded with the brake pad outer barrel assembly (19) in the sealing mechanism, and the other end is threaded with lower contact (24).
8. by claim 1,2,3,4 or 7 described Multifunction packers, it is characterized in that: between top connection (1) and the axle (3), between dummy piston (4) and the axle (3), between dummy piston (4) and the bypass urceolus (7), between joint ring (6) and the bypass urceolus (7), between sealing lip joint (8) and the axle (3), between sealing lip joint (8) and the packing element axle (10) and be equipped with O-ring seals (2) between lower contact (24) and the axle (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200148593U CN201087724Y (en) | 2007-09-29 | 2007-09-29 | Multifunctional packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200148593U CN201087724Y (en) | 2007-09-29 | 2007-09-29 | Multifunctional packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201087724Y true CN201087724Y (en) | 2008-07-16 |
Family
ID=39635317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200148593U Expired - Fee Related CN201087724Y (en) | 2007-09-29 | 2007-09-29 | Multifunctional packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201087724Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102979471A (en) * | 2012-12-10 | 2013-03-20 | 中国石油集团西部钻探工程有限公司 | Anti-fall split slip hydraulic hanging packer |
| CN111911145A (en) * | 2020-08-13 | 2020-11-10 | 中国石油化工股份有限公司 | Double-seal straddle stratum testing method |
| CN111911110A (en) * | 2020-08-13 | 2020-11-10 | 中国石油化工股份有限公司 | Packer for formation testing and method for performing formation testing by using packer |
| CN112983340A (en) * | 2019-12-13 | 2021-06-18 | 中国石油化工股份有限公司 | Packer for ultra-deep well |
| CN114320216A (en) * | 2022-02-16 | 2022-04-12 | 成都德维石油技术服务有限责任公司 | Packer |
-
2007
- 2007-09-29 CN CNU2007200148593U patent/CN201087724Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102979471A (en) * | 2012-12-10 | 2013-03-20 | 中国石油集团西部钻探工程有限公司 | Anti-fall split slip hydraulic hanging packer |
| CN102979471B (en) * | 2012-12-10 | 2015-08-19 | 中国石油集团西部钻探工程有限公司 | Anticreep distinguish slip hydraulic hanging packer |
| CN112983340A (en) * | 2019-12-13 | 2021-06-18 | 中国石油化工股份有限公司 | Packer for ultra-deep well |
| CN111911145A (en) * | 2020-08-13 | 2020-11-10 | 中国石油化工股份有限公司 | Double-seal straddle stratum testing method |
| CN111911110A (en) * | 2020-08-13 | 2020-11-10 | 中国石油化工股份有限公司 | Packer for formation testing and method for performing formation testing by using packer |
| CN111911110B (en) * | 2020-08-13 | 2022-05-03 | 中国石油化工股份有限公司 | Packer for formation testing and method for performing formation testing by using packer |
| CN114320216A (en) * | 2022-02-16 | 2022-04-12 | 成都德维石油技术服务有限责任公司 | Packer |
| CN114320216B (en) * | 2022-02-16 | 2023-09-15 | 成都德维石油技术服务有限责任公司 | Packer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080716 Termination date: 20160929 |