CN201170081Y - Water clamping and sealing separator - Google Patents
Water clamping and sealing separator Download PDFInfo
- Publication number
- CN201170081Y CN201170081Y CNU2008200793060U CN200820079306U CN201170081Y CN 201170081 Y CN201170081 Y CN 201170081Y CN U2008200793060 U CNU2008200793060 U CN U2008200793060U CN 200820079306 U CN200820079306 U CN 200820079306U CN 201170081 Y CN201170081 Y CN 201170081Y
- Authority
- CN
- China
- Prior art keywords
- core pipe
- piston
- ring
- core tube
- lock
- 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 - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 238000007789 sealing Methods 0.000 title claims abstract description 10
- 238000012856 packing Methods 0.000 claims description 14
- 125000006850 spacer group Chemical group 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 abstract 3
- 238000000605 extraction Methods 0.000 abstract 1
- 238000005086 pumping Methods 0.000 abstract 1
- 210000000056 organ Anatomy 0.000 description 2
- 241000254175 Anthonomus grandis Species 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000006243 chemical reaction Methods 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
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
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- Earth Drilling (AREA)
Abstract
A water blocking packer is applied to the technical field of oil extraction in oil fields. Is characterized in that: the lower end of the upper joint is connected with the inner core tube, and the lower end of the inner core tube is connected with the lower joint. The balance piston is fixed at the lower end of the upper joint, and the lower end of the balance piston is connected with the lock sleeve. The lock ring is sleeved between the lock sleeve and the inner core tube. The upper part of the inner core tube is provided with four through holes, six unsealing blocks are arranged below the holes, and the upper part of the lower joint is provided with four transverse through holes. The upper joint, the balance piston and the inner core tube form a differential pressure balance piston cavity through a sealing ring. The lower end of the outer core tube is connected with the connector, and three rubber cylinders are arranged on the outer surface of the outer core tube. The upper end of the lower piston sleeve is connected with the joint, and a lower piston is arranged in the lower piston sleeve. The effect is as follows: the setting and unsealing are flexible and reliable, the pressure bearing difference can reach 27MPa, the reliability of the water blocking process of the oil pumping well can be improved, and the water blocking effect can be obviously improved.
Description
Technical field
The utility model relates to oil recovery technique field, oil field, particularly the card water packer used of oil well down-hole.
Background technology
At present, the oil field is in pumpingh well layering card water pipe post implementation process, and because of the packer set poor reliability that card water pipe post uses, bearing capacity is low, causes envelope card weak effect.In addition, when well workover need play card release water pipe post, because packer is not easy deblocking, the promotion that can only make progress by force tripped out to tubing string and to have caused difficulty.
The utility model content
The purpose of this utility model is: a kind of card water packer is provided, fundamentally solves the seat envelope reliability of layering card water packer, improve voltage endurance capability, to reach the purpose that improves layered effect and water-control oil-increasing, change in addition and separate sealing mechanism, improve the deblocking effect.
The technical solution adopted in the utility model is: card water packer, mainly form by top connection, dummy piston, lock ring, lock tube, interior core pipe, packing element, outer core pipe, connector, lower piston, lower piston cover and lower contact.There is the internal thread that is connected with oil pipe top connection upper end, on the lower end that connects be connected with interior core pipe, interior core pipe lower end is connected with lower contact.On the outer wall of top connection lower end, the dummy piston lower end is connected with lock tube by four dowel fixes in the upper end of dummy piston.Lock ring is sleeved between lock tube and the interior core pipe.Lock ring be shaped as ring-type, the lock ring surfaces externally and internally has saw-tooth thread, the lower end has four openings.Four through holes are arranged at interior core pipe top, six deblocking pieces are arranged below the hole, and four cross through hole are arranged at lower contact top.Top connection, dummy piston and interior core pipe are formed the pressure balance plunger shaft by sealing ring.The outer surface of upper of outer core pipe has saw-tooth thread, and outer core pipe lower end is connected with connector, and outer core pipe external surface is equipped with three packing elements, and spacer ring is housed between the packing element.The upper end of lower piston cover is connected with joint, and the lower end of lower piston cover is fixed on the lower contact outer wall by two shear pins, and lower piston is equipped with in the inside of lower piston cover.Lower piston, lower piston cover and lower contact are formed seat envelope plunger shaft by sealing ring.
The feature of lock ring is: its shape surfaces externally and internally has saw-tooth thread, and the lower end has four openings.Wherein three openings are arranged is obstructed opening to four openings, and an opening is the opening of all-pass.
The beneficial effects of the utility model:
1. the utility model card water packer adopts fluid power seat envelope and pressure balance frame mode, packer set adopt the lock ring self-locking mechanism and on carry central tube and strut lock ring and separate sealing mechanism,
2. the utility model card water packer adopts the dummy piston mechanism form, and the packer upper pressure can enter in the seat envelope cylinder by interior exterior central tube, reaches the effect of pressure balance up and down, to improve the withstand voltage poor property of packer.
The utility model can make card water packer set deblocking flexibility and reliability, and the pressure-bearing difference can reach 27MPa, can improve the reliability of rod-pumped well card water conservancy project skill, and card water effect will obviously improve, and have important economic worth in oil field development.
Description of drawings
Fig. 1 is the structural representation of the utility model card water packer;
Fig. 2 is the axle side schematic diagram of lock ring 4.
In the accompanying drawing 1: the 1st, top connection, the 2nd, pin, the 3rd, dummy piston, the 4th, lock ring, the 5th, lock tube, the 6th, interior core pipe, the 7th, packing element, the 8th, spacer ring, the 9th, outer core pipe, the 10th, connector, the 11st, lower piston, the 12nd, lower piston cover, the 13rd, shear pin, the 14th, lower contact.
The specific embodiment
Embodiment 1: the card water packer with a 5-1/2 specification, model is an example, is elaborated.
Consult Fig. 1.Top connection 1 internal thread specification is the 2-7/8 tubing thread, and top connection 1 upper end can be connected with the 2-7/8 oil pipe.Dummy piston 3 internal diameters are 60 millimeters, and external diameter is 90 millimeters, and length is 63 millimeters, is made by carbon steel material.Lock ring 4 be shaped as ring-type, lock ring 4 surfaces externally and internallies have saw-tooth thread, the lower end has four opening 4a, wherein three openings are arranged is obstructed opening to four opening 4a, an opening is the opening of all-pass.Lock tube 5 internal diameters are 87 millimeters, and external diameter is 94 millimeters.Interior core pipe 6 internal diameters are 50 millimeters, and external diameter is 60 millimeters, and length is 570 millimeters.Packing element 7 and spacer ring 8 are universal architecture.Outer core pipe 9 internal diameters are 70 millimeters, and external diameter is 80 millimeters, and length is 330 millimeters.Lower piston 11 internal diameters are 60 millimeters, and external diameter is 90 millimeters.
The lower end of top connection 1 is connected with interior core pipe 6, and interior core pipe 6 lower ends are connected with lower contact 14.The upper end of dummy piston 3 is fixed on the top connection 1 lower end outer wall by four pins 2, and dummy piston 3 lower ends are connected with lock tube 5.Lock ring 4 is sleeved between lock tube 5 and the interior core pipe 6.Four through hole 6a are arranged at interior core pipe 6 tops, six deblocking pieces are arranged below the hole, and four cross through hole 14a are arranged at lower contact 14 tops.Top connection 1, dummy piston 3 and interior core pipe 6 are formed pressure balance plunger shaft 15 by sealing ring.The outer surface of upper of outer core pipe 9 has saw-tooth thread, and outer core pipe 9 lower ends are connected with connector 10, and outer core pipe 9 external surfaces are equipped with three packing elements 7, and spacer ring 8 is housed between the packing element 7.The upper end of lower piston cover 12 is connected with joint 10, and the lower end of lower piston cover 12 is fixed on lower contact 14 outer walls by two shear pins 13, and lower piston 11 is equipped with in the inside of lower piston cover 12.Lower piston 11, lower piston cover 12 and lower contact 14 are formed seat envelope plunger shaft 16 by sealing ring.
The use operating process of card water packer is: the card water seal that will go into the well earlier is series-connected to the lower end of this boll-weevil hanger every organ pipe, tubing string G.I.H after will connecting then, after being lowered to projected depth, from dropping into bat in the oil pipe in the ball seat of card water pipe column bottom, make tubing string airtight, suppress 15～18MPa on ground from oil pipe then, liquid enters seat envelope plunger shaft 16 by four through hole 14a in the lower contact 14, under pressure, lower piston 11 is up, promote connector 10, lower piston cover 12 and outer core pipe 9 are up, two shear pins 13 are cut off, when up 60～80mm, the saw-tooth thread of outer core pipe 9 outer surface of upper hang over lock ring 4 on the saw-tooth thread of inner surface the back from trivial, tightly fit in internal surface of sleeve pipe after three packing elements 7 are compressed and open, thereby play the packing effect of oil reservoir up and down.
When needs play the card release water seal every the organ pipe post, be lowered to reversible and drag for lance, directly upper lifting pipe post 30～40KN can cut off the up lock ring 4 that struts of 2, six deblocking pieces of four pins 6b, and under packing element 7 elastic reactions, outer core pipe 9 is descending, and packing element 7 shrinks the back deblockings.
Claims (2)
1, a kind of card water packer, mainly by top connection (1), dummy piston (3), lock ring (4), lock tube (5), interior core pipe (6), packing element (7), outer core pipe (9), connector (10), lower piston (11), lower piston cover (12) and lower contact (14) are formed, there is the internal thread that is connected with oil pipe top connection (1) upper end, it is characterized in that: the lower end of top connection (1) is connected with interior core pipe (6), interior core pipe (6) lower end is connected with lower contact (14), the upper end of dummy piston (3) is fixed on the outer wall of top connection (1) lower end by four pins (2), dummy piston (3) lower end is connected with lock tube (5), lock ring (4) is sleeved between lock tube (5) and the interior core pipe 6, lock ring (4) be shaped as ring-type, lock ring (4) surfaces externally and internally has saw-tooth thread, the lower end has four openings (4a), four through holes (6a) are arranged at interior core pipe (6) top, six deblocking pieces are arranged below the hole, four cross through hole (14a) are arranged at lower contact (14) top, top connection (1), dummy piston (3) and interior core pipe (6) are formed pressure balance plunger shaft (15) by sealing ring, the outer surface of upper of outer core pipe (9) has saw-tooth thread, outer core pipe (9) lower end is connected with connector (10), outer core pipe (9) external surface is equipped with three packing elements (7), spacer ring (8) is housed between the packing element (7), the upper end of lower piston cover (12) is connected with joint (10), the lower end of lower piston cover (12) is fixed on lower contact (14) outer wall by two shear pins (13), lower piston (11) is equipped with in the inside of lower piston cover (12), lower piston (11), lower piston cover (12) and lower contact (14) are formed seat envelope plunger shaft (16) by sealing ring.
2, card water packer according to claim 1 is characterized in that: described lock ring (4) lower end has four openings (4a), and wherein three openings are arranged is obstructed opening to four openings (4a), and an opening is the opening of all-pass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200793060U CN201170081Y (en) | 2008-03-11 | 2008-03-11 | Water clamping and sealing separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200793060U CN201170081Y (en) | 2008-03-11 | 2008-03-11 | Water clamping and sealing separator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201170081Y true CN201170081Y (en) | 2008-12-24 |
Family
ID=40209134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200793060U Expired - Lifetime CN201170081Y (en) | 2008-03-11 | 2008-03-11 | Water clamping and sealing separator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201170081Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104316410A (en) * | 2014-11-12 | 2015-01-28 | 中国石油天然气股份有限公司 | Compression packer packing element experimental apparatus |
-
2008
- 2008-03-11 CN CNU2008200793060U patent/CN201170081Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104316410A (en) * | 2014-11-12 | 2015-01-28 | 中国石油天然气股份有限公司 | Compression packer packing element experimental apparatus |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081224 |