CN207437001U - Rail type rubber sleeve packer for horizontal well - Google Patents
Rail type rubber sleeve packer for horizontal well Download PDFInfo
- Publication number
- CN207437001U CN207437001U CN201721339950.2U CN201721339950U CN207437001U CN 207437001 U CN207437001 U CN 207437001U CN 201721339950 U CN201721339950 U CN 201721339950U CN 207437001 U CN207437001 U CN 207437001U
- Authority
- CN
- China
- Prior art keywords
- packing element
- packer
- horizontal well
- track groove
- trajectory
- 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.)
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Links
- 238000012856 packing Methods 0.000 claims abstract description 53
- 239000000463 material Substances 0.000 claims abstract description 4
- 238000004073 vulcanization Methods 0.000 claims description 4
- 239000011122 softwood Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 9
- 239000007779 soft material Substances 0.000 abstract 1
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 239000003292 glue Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 241000256844 Apis mellifera Species 0.000 description 1
- 229920001875 Ebonite Polymers 0.000 description 1
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Joints With Sleeves (AREA)
Abstract
The utility model provides a horizontal well rail mounted packing element packer, including the center tube, the upper and lower end difference threaded connection is the top connection and the lower clutch on the center tube, and top-down has adjustable ring, packing element stop collar, cone, rights clutch blocks in proper order to overlap on the center tube, rights the last track pin that is equipped with of clutch blocks, is equipped with short track groove and long track groove on the center tube lower extreme outer wall, and the packing element vulcanizes and fixes between adjustable ring and packing element stop collar. The two ends of the rubber cylinder are made of hard materials, and the middle of the rubber cylinder is made of soft materials. The utility model provides a this kind of horizontal well rail mounted packing element packer relies on the frictional force of intraductal wall of sleeve to the clutch blocks for the clutch blocks is at length track switching-over, pushes down tubular column packing element pressurized expansion seat seal, realizes the horizontal segment packing. Through the design of the long and short track reversing seat sealing mechanism, the rubber sleeve is forced to be sealed, the rubber sleeve is more reliable, and the rubber sleeve is rebounded to automatically recover the original position after being pressed and released.
Description
Technical field
The utility model is specifically related to a kind of Trajectory of Horizontal Well formula Tubing Packer.
Background technology
For the horizontal well produced fluid cross section of cased hole completion mode, use compression Y441, Y445 packer at present more
It as isolating tool, is set by building the pressure in oil pipe, upper lifting pipe post deblocking, it is usually used at present without forcing to solve sealing mechanism,
Since the resilience of compression type glue barrel is not enough to the resistance for overcoming lower end piston and other components, it is impossible to which the probability of deblocking is larger.
It builds the pressure and sets in routine K344 type packer oil pipes simultaneously, release oily overpressure packing element and withdraw, horizontal well can not be applied to
Downhole packing during mechanical oil recovery.
Utility model content
The purpose of the utility model is to overcome be currently used for unsealing the problem of difficult existing for the packer of horizontal well.
For this purpose, the utility model provides a kind of Trajectory of Horizontal Well formula Tubing Packer, including central tube, above and below central tube
End is threadedly coupled top connection and lower contact respectively, and regulation ring, packing element, packing element /V are cased with successively from top to bottom on central tube
Set, cone, righting brake pad, regulation ring upper end are connected with top connection compression, and packing element lower end compresses with packing element stop collar and connects, and helps
Positive brake pad is equipped with track pin, and central tube lower end outer wall is equipped with short track groove and long track groove, and the packing element vulcanization is solid
It is scheduled between regulation ring and packing element stop collar.
The packing element both ends are hard material, centre is softwood matter, and the hardness at 4 both ends of packing element is 60HS, center section it is hard
Spend 45HS.
The natural outer diameter of the packing element is 110mm, and the maximum outside diameter after setting is 134mm.
During setting and unsealing, track pin slides the packer between short track groove and long track groove.
The power that sets and unseal of the packer is 200~300KN.
The beneficial effects of the utility model：This Trajectory of Horizontal Well formula Tubing Packer provided by the utility model relies on
Internal surface of sleeve pipe is to the frictional force of brake pad so that brake pad commutates in length track, and the packing element compression expansion of pushing tubing string is setting, real
Existing horizontal segment packing.It is designed by length track inverting seat sealing mechanism so that packing element forces setting, design soft gum tube sealing, glue
Cylinder sealing is relatively reliable, springs back after the release that is pressurized and sets back automatically.
The utility model is described in further details below with reference to attached drawing.
Description of the drawings
Fig. 1 is Trajectory of Horizontal Well formula Tubing Packer structure diagram.
Reference sign：1. top connection；2. regulation ring；3. long track groove；4. packing element；5. lower contact；6. packing element /V
Set；7. cone；8. righting brake pad；9. central tube；10. track pin；11. short track groove.
Specific embodiment
Embodiment 1：
A kind of Trajectory of Horizontal Well formula Tubing Packer as shown in Figure 1 is present embodiments provided, including central tube 9, center
9 upper and lower side of pipe is threadedly coupled top connection 1 and lower contact 5 respectively, and regulation ring 2, packing element are cased with successively from top to bottom on central tube 9
4th, packing element stop collar 6, cone 7, righting brake pad 8,2 upper end of regulation ring are connected with the compression of top connection 1,4 lower end of packing element and packing element
Stop collar 6 compresses connection, and righting brake pad 8 is equipped with track pin 10, and 9 lower end outer wall of central tube is equipped with short 11 He of track groove
Long track groove 3, the vulcanization of packing element 4 are fixed between regulation ring 2 and packing element stop collar 6.
The working process and principle of Trajectory of Horizontal Well formula Tubing Packer are as follows：
Packer is connected to G.I.H on tubing string by design requirement first, track pin 10 is located at short track groove at this time
11 top dead-centres, with casing there are a frictional force, cone 7 does not contact righting brake pad 8 with righting brake pad 8, and packing element 4 is in not
Pressured state ensures that tubing string being capable of smooth G.I.H；Under to test position set when on put and put tubing string, track pin 10 changes
To long track groove 3, righting brake pad 8 is motionless there are frictional force with internal surface of sleeve pipe, and with 8 crush cones of tubing string decentralization righting brake pad
Body 7, packing element 4, which is pressurized, to be expanded, and the track pin 10 of righting brake pad 8 enters long 3 top dead-centre of track groove, realizes packer effect；
Upper lifting pipe post during deblocking, track pin 10 enter short track groove 11, and righting brake pad 8, which departs from, squeezes cone 7, and the compression of packing element 4 is released
Put back to receipts.
Embodiment 2：
On the basis of embodiment 1,4 both ends of packing element are hard material, centre is softwood matter, the hardness at 4 both ends of packing element
For 60HS, the hardness 45HS of center section.Packing element both ends are ebonite cylinder, center section is soft gum tube, design soft or hard packing element and combine
Sealing makes packing element sealing relatively reliable, springs back after the release that is pressurized and set back automatically.The vulcanization of packing element 4 is fixed on regulation ring 2 and glue
Between cylinder stop collar 6, regulation ring 2 and packing element stop collar 6 make instead of the upper glue tube base of existing Tubing Packer and lower rubber cylinder seat
Tubing Packer structure is simpler, and honeybee effect is more obvious, packing element be pressurized discharge after set back automatically rapidly.
Embodiment 3：
On the basis of embodiment 1, the natural outer diameter of the packing element 4 is 110mm, and the maximum outside diameter after setting is 134mm,
Suitable for 51/2, " casing inner diameter, upper lower contact both ends screw thread is 27/8TBG（in）.Packer length 1600mm, rigid body are maximum
Outer diameter 114mm, packing element length are not less than 600mm；Packer is during setting and unsealing, and track pin 10 is in short track groove 11
It is slided between long track groove 3.The power that sets and unseal of the packer is 200~300KN.
Net horizontal section be not to interlayer pressure difference it is very high, it is not high to the sealing requirements of packer（Below 2 megapascal）, it is
Ensure multiple packers net horizontal section can under must go, rise draw, sealing must live, using friction of the internal surface of sleeve pipe to brake pad
Power so that brake pad length track commutate, soft gum tube be pressurized expansion it is setting, realize horizontal segment packing, deblocking power also therewith with
The frictional force of brake pad is related.Single packer setting, deblocking about 200~300 kg of power.It can realize multistage pressure break level
The multiple interval packing productions of well, solve current conventional packer structure and operation principle limitation causes deblocking power, setting force big,
Can not multiple combination applications the problem of.
Exemplified as above is only for example, not forming to the scope of protection of the utility model to the utility model
Limitation, within every design the same or similar with the utility model all belongs to the scope of protection of the present invention.The present embodiment does not have
The component and the well-known components and common structure or conventional means of the structure category industry described in detail, does not describe one by one here.
Claims (5)
1. a kind of Trajectory of Horizontal Well formula Tubing Packer, including central tube（9）, central tube（9）Upper and lower side is threadedly coupled respectively
Top connection（1）And lower contact（5）, central tube（9）On be cased with regulation ring successively from top to bottom（2）, packing element（4）, packing element stop collar
（6）, cone（7）, righting brake pad（8）, regulation ring（2）Upper end and top connection（1）It compresses and is connected, it is characterised in that：Packing element（4）
Lower end and packing element stop collar（6）Compress connection, righting brake pad（8）It is equipped with track pin（10）, central tube（9）Lower end outer wall
It is equipped with short track groove（11）With long track groove（3）, the packing element（4）Vulcanization is fixed on regulation ring（2）With packing element stop collar（6）
Between.
2. Trajectory of Horizontal Well formula Tubing Packer as described in claim 1, it is characterised in that：The packing element（4）Both ends are hard
It is material, intermediate for softwood matter, packing element（4）The hardness at both ends is 60HS, the hardness 45HS of center section.
3. Trajectory of Horizontal Well formula Tubing Packer as claimed in claim 1 or 2, it is characterised in that：The packing element（4）Nature
Outer diameter is 110mm, and the maximum outside diameter after setting is 134mm.
4. Trajectory of Horizontal Well formula Tubing Packer as described in claim 1, it is characterised in that：The packer is setting reconciliation
During envelope, track pin（10）In short track groove（11）With long track groove（3）Between slide.
5. Trajectory of Horizontal Well formula Tubing Packer as described in claim 1, it is characterised in that：The packer sets reconciliation
It is 200~300KN to seal power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721339950.2U CN207437001U (en) | 2017-10-18 | 2017-10-18 | Rail type rubber sleeve packer for horizontal well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721339950.2U CN207437001U (en) | 2017-10-18 | 2017-10-18 | Rail type rubber sleeve packer for horizontal well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207437001U true CN207437001U (en) | 2018-06-01 |
Family
ID=62293459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721339950.2U Active CN207437001U (en) | 2017-10-18 | 2017-10-18 | Rail type rubber sleeve packer for horizontal well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207437001U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107780876A (en) * | 2017-10-18 | 2018-03-09 | 中国石油天然气股份有限公司 | Horizontal well track type rubber sleeve packer and packing method |
-
2017
- 2017-10-18 CN CN201721339950.2U patent/CN207437001U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107780876A (en) * | 2017-10-18 | 2018-03-09 | 中国石油天然气股份有限公司 | Horizontal well track type rubber sleeve packer and packing method |
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