CN203531831U - Progressively re-opened packer for finely-divided allocation of oil well - Google Patents
Progressively re-opened packer for finely-divided allocation of oil well Download PDFInfo
- Publication number
- CN203531831U CN203531831U CN201320714844.3U CN201320714844U CN203531831U CN 203531831 U CN203531831 U CN 203531831U CN 201320714844 U CN201320714844 U CN 201320714844U CN 203531831 U CN203531831 U CN 203531831U
- Authority
- CN
- China
- Prior art keywords
- pin
- piston
- packer
- central tube
- deblocking
- 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
- 239000003129 oil well Substances 0.000 title claims abstract description 15
- 238000012856 packing Methods 0.000 claims description 23
- 125000006850 spacer group Chemical group 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000001174 ascending effect Effects 0.000 abstract 1
- 230000000750 progressive effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model relates to the technical field of oil field oil production engineering and belongs to a progressively re-opened packer for finely-divided allocation of an oil well. A sliding sleeve pin on the upper portion of the packer is sheared, so that the problem that the packer is large in resistance and difficult to re-open during lifting in finely-divided exploit of over-seven-layer oil wells is solved. The progressively re-opened packer is composed of a pin seat 3, a sliding sleeve pin 4, a spring pawl 8, a spring pawl sleeve 9 and an anti-rotation pin 10, wherein the pin seat 3 is in threaded connection with a central pipe 6, an outer edge of the pin seat 3 and a connection sleeve 5 are fixed through the sliding sleeve pin 4, an upper end of the spring pawl sleeve 9 is in screwed connection with the connection sleeve 5, and an lower end of the spring pawl sleeve 9 fixes the spring pawl 8 through the anti-rotation pin 10. The progressively re-opened packer is mainly applied to finely layered producing wells in oil fields and has the advantages of being good in temperature resistance and pressure bearing performance, and capable of smoothly ascending and descending in oil wells and meanwhile achieving progressive re-opening from top to bottom in wells.
Description
Technical field: the utility model relates to oil extraction in oil field field of engineering technology, belongs to a kind of gradually deblocking packer producing for oil well fine distribution.
Background technology: this packer is a kind of downhole tool using in multilayer segmentation oil well, and oil field layered recovers the oil and can control the oil exploitation speed of each interval, and the lasting exploitation in oil field is played an important role.On original Wel packing, carry in deblocking process, rely on frictional force between packing element and sleeve pipe to realize deblocking, because application progression increases, packing element and sleeve friction power are not enough to cut off deblocking pin, so cannot trip out from working string smoothly.The utility model has changed original Wel packing deblocking mode, deblocking structure is designed to upper and lower two parts, when bottom deblocking mechanism can not realize decapsulation functions smoothly, sealing mechanism is separated under the effect of upper lifting force in top, deblocking pin is cut off, packer is realized gradually deblocking from top to bottom, guarantees that pumping pipe string trips out smoothly.
Summary of the invention: the purpose of this utility model is to have designed to remove smoothly in oil well, the while can be realized a kind of gradually deblocking packer producing for oil well fine distribution of gradually deblocking from top to bottom in well.
The technical solution of the utility model realizes by following measures: it by top connection, cushion rubber, adapter sleeve, central tube, connection bushing pipe, adjustable ring, upper lining, spacer ring, in packing element, limit packing element, upper pressure-bearing piston, dummy piston, lower lining, dummy piston cover, fixed piston, deblocking pin, deblocking pin extension, lock ring, lock ring extension, lock ring cover, set piston, lower contact, set pin and back of the body cap forms, wherein top connection lower end is connected with central tube with adapter sleeve respectively by screw thread, central tube is threaded with connecting bushing, on adjustable ring, there is a pressure guide hole, adjustable ring packs into outside central tube, upper lining is equipped with spacer ring outward from top to bottom, middle packing element and limit packing element, and be contained in together with lower lining outside central tube, upper pressure-bearing piston and upper lining pass through rubber sealing, upper pressure-bearing piston is connected with dummy piston threading, fixed piston relies on screw thread to be fixed on central tube, deblocking pin is hung with lock ring and is hung screwed connection, and lock ring is equipped with in both outsides, there is sawtooth thread in lock ring outside, set piston and central tube passes through rubber sealing, setting piston is connected with lower contact contact, lock ring cover with set pin screw and be connected, it is also comprised of dowel bushing, sliding sleeve pin, spring detent, spring detent cover and anti-rotation pin, wherein dowel bushing is threaded with central tube, and dowel bushing outside is fixed by sliding sleeve pin with adapter sleeve, and spring detent is threaded with adjustable ring, spring detent set upper side and adapter sleeve screwed connection, and spring detent cover lower end is by anti-rotation pin fixing spring pawl.
The deblocking power that sliding sleeve pin has is more than 12t.Spring detent is eight pawl project organizations, is designed with anti-rotation groove simultaneously.
The utility model compared with the prior art tool has the following advantages:
The utility model is simple and reasonable, in oil well, can remove smoothly, efficiently solve being lowered to of may occurring and be hampered and set midway, and on put forward not the problems such as the stuck tubing string of deblocking, improved reliability and the safety of construction.Meanwhile, heatproof load performance is good, can meet the needs of oil well multiple-zone production completely.
Accompanying drawing explanation: Fig. 1 is structural representation of the present utility model.
The specific embodiment: the utility model is described in further detail below in conjunction with accompanying drawing: shown in accompanying drawing, it by top connection 1, cushion rubber 2, adapter sleeve 5, central tube 6, connect bushing pipe 7, adjustable ring 11, upper lining 12, spacer ring 13, in packing element 14, limit packing element 15, upper pressure-bearing piston 16, dummy piston 17, lower lining 18, dummy piston cover 19, fixed piston 20, deblocking pin 21, deblocking pin hang 22, lock ring 23, lock ring hang 24, lock ring cover 25, set piston 26, lower contact 27, set pin 28 and back of the body cap 29 forms, wherein top connection 1 lower end is connected with central tube 6 with adapter sleeve 5 respectively by screw thread, central tube 6 is threaded with connecting bushing 7, on adjustable ring 11, there is a pressure guide hole, adjustable ring 11 packs into outside central tube 6, the outer spacer ring 13 that is equipped with from top to bottom of upper lining 12, middle packing element 14 and limit packing element 15, and be contained in central tube 6 outsides together with lower lining 18, upper pressure-bearing piston 16 seals by cushion rubber 2 with upper lining 12, upper pressure-bearing piston 16 is overlapped 19 screwed connections with dummy piston, fixed piston 20 relies on screw thread to be fixed on central tube 6, deblocking pin is hung 22 and is hung 24 screwed connections with lock ring, and lock ring 23 is equipped with in both outsides, there is sawtooth thread in lock ring 23 outsides, setting piston 26 seals by cushion rubber 2 with central tube 6, setting piston 26 is connected with lower contact 27 contacts, lock ring cover 25 with set pin 28 screws and be connected, it is also comprised of dowel bushing 3, sliding sleeve pin 4, spring detent 8, spring detent cover 9 and anti-rotation pin 10, wherein dowel bushing 3 is threaded with central tube 6, dowel bushing 3 outsides and adapter sleeve 5 are fixing by sliding sleeve pin 4, spring detent 8 is threaded with adjustable ring 11, and spring detent overlaps 9 upper ends and adapter sleeve 5 screwed connections, and spring detent overlaps 9 lower ends by anti-rotation pin 10 fixing spring pawls 8.
The deblocking power that sliding sleeve pin 4 has is more than 12t.Spring detent 8 is eight pawl project organizations, is designed with anti-rotation groove simultaneously.
During on-the-spot use, the utility model and supporting allocation of well rates device etc. is used in conjunction with.Top is connected with oil pipe bottom, be lowered into oil well designated depth, while setting, can pressurize by tubing string, act on of the present utility model setting on piston on 26, setting piston 26, to drive lock rings to overlap 25 up, sets pin 28 and cut off, dummy piston cover 19 and upper pressure-bearing piston 16 are up, middle packing element 14 and the stressed expansion of limit packing element 15, complete and set function, plays the effect on packing stratum.During deblocking, upper lifting pipe post, central tube 6 and fixed piston 20 are descending, deblocking pin 21 is cut off, upper pressure-bearing piston 16 and balance piston bush 19 are descending, centering packing element 14 and limit packing element 15 play the effect of part pressure release, can not make this removing seal for packer completely, at this moment, upper lifting force acts on top connection 1, and to drive adapter sleeve 5 and spring detent to overlap 9 up, the descending power that spring detent 8 centre of equilibrium pipes 6 produce, and sliding sleeve pin 4 is cut off, at this moment middle packing element 14 and limit packing element 15 are regained completely, thereby have completed the deblocking of this packer.
Claims (3)
1. the gradually deblocking packer producing for oil well fine distribution, it is by top connection (1), cushion rubber (2), adapter sleeve (5), central tube (6), connect bushing pipe (7), adjustable ring (11), upper lining (12), spacer ring (13), middle packing element (14), limit packing element (15), upper pressure-bearing piston (16), dummy piston (17), lower lining (18), dummy piston cover (19), fixed piston (20), deblocking pin (21), deblocking pin is hung (22), lock ring (23), lock ring is hung (24), lock ring cover (25), set piston (26), lower contact (27), set pin (28) and back of the body cap (29) composition, wherein top connection (1) lower end is connected with central tube (6) with adapter sleeve (5) respectively by screw thread, central tube (6) is threaded with connecting bushing (7), on adjustable ring (11), there is a pressure guide hole, adjustable ring (11) packs into outside central tube (6), the outer spacer ring (13) that is equipped with from top to bottom of upper lining (12), middle packing element (14) and limit packing element (15), and be contained in together with lower lining (18) outside central tube (6), upper pressure-bearing piston (16) seals by cushion rubber (2) with upper lining (12), upper pressure-bearing piston (16) and dummy piston cover (19) screwed connection, fixed piston (20) relies on screw thread to be fixed on central tube (6), deblocking pin is hung (22) and is hung (24) screwed connection with lock ring, and lock ring (23) is equipped with in both outsides, there is sawtooth thread in lock ring (23) outside, setting piston (26) seals by cushion rubber (2) with central tube (6), setting piston (26) is connected with lower contact (27) contact, lock ring cover (25) with set pin (28) screw and be connected, it is characterized in that: it is also comprised of dowel bushing (3), sliding sleeve pin (4), spring detent (8), spring detent cover (9) and anti-rotation pin (10), wherein dowel bushing (3) is threaded with central tube (6), dowel bushing (3) outside is fixing by sliding sleeve pin (4) with adapter sleeve (5), spring detent (8) is threaded with adjustable ring (11), spring detent cover (9) upper end and adapter sleeve (5) screwed connection, spring detent cover (9) lower end is by anti-rotation pin (10) fixing spring pawl (8).
2. a kind of gradually deblocking packer producing for oil well fine distribution according to claim 1, is characterized in that: the deblocking power that sliding sleeve pin (4) has is more than 12t.
3. a kind of gradually deblocking packer producing for oil well fine distribution according to claim 1, is characterized in that: spring detent (8) is eight pawl project organizations, is designed with anti-rotation groove simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320714844.3U CN203531831U (en) | 2013-11-08 | 2013-11-08 | Progressively re-opened packer for finely-divided allocation of oil well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320714844.3U CN203531831U (en) | 2013-11-08 | 2013-11-08 | Progressively re-opened packer for finely-divided allocation of oil well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203531831U true CN203531831U (en) | 2014-04-09 |
Family
ID=50418053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320714844.3U Expired - Lifetime CN203531831U (en) | 2013-11-08 | 2013-11-08 | Progressively re-opened packer for finely-divided allocation of oil well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203531831U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105756608A (en) * | 2014-12-16 | 2016-07-13 | 中国石油天然气股份有限公司 | Step by step release packer |
| CN105804709A (en) * | 2016-04-15 | 2016-07-27 | 中国石油天然气股份有限公司 | Integrated production allocator for gas well layer mining |
| CN106567688A (en) * | 2016-11-04 | 2017-04-19 | 中国石油天然气股份有限公司 | Mechanical-hydraulic hybrid setting and unsetting packer for fracturing |
-
2013
- 2013-11-08 CN CN201320714844.3U patent/CN203531831U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105756608A (en) * | 2014-12-16 | 2016-07-13 | 中国石油天然气股份有限公司 | Step by step release packer |
| CN105756608B (en) * | 2014-12-16 | 2018-11-16 | 中国石油天然气股份有限公司 | A kind of gradually deblocking packer |
| CN105804709A (en) * | 2016-04-15 | 2016-07-27 | 中国石油天然气股份有限公司 | Integrated production allocator for gas well layer mining |
| CN105804709B (en) * | 2016-04-15 | 2019-03-08 | 中国石油天然气股份有限公司 | A kind of integrated production mandrel of gas well separate zone production |
| CN106567688A (en) * | 2016-11-04 | 2017-04-19 | 中国石油天然气股份有限公司 | Mechanical-hydraulic hybrid setting and unsetting packer for fracturing |
| CN106567688B (en) * | 2016-11-04 | 2019-03-08 | 中国石油天然气股份有限公司 | A kind of mixed dynamic seat solution packer of the mechanical-hydraulic for pressure break |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2898269Y (en) | Multifunctional sieve-tube hanger | |
| CN203531831U (en) | Progressively re-opened packer for finely-divided allocation of oil well | |
| CN103573210A (en) | Quick drill composite pipe bridge plug | |
| CN201843563U (en) | Mechanical downhole inner and outer integrated blowout preventer | |
| CN104120998A (en) | Suspension packer for gas well layered exploitation | |
| CN201087724Y (en) | Multifunctional packer | |
| CN201843571U (en) | Oil drainage type packer | |
| CN203614074U (en) | Water injection packer capable of being unpacked step by step and achieving well backwashing | |
| CN201620820U (en) | Novel dual-slip packer | |
| CN203808923U (en) | Suspension releasing packer for oil-gas water well | |
| CN201991519U (en) | Dual-string test wellhead device | |
| CN204782834U (en) | Novel continuous outside of tubes slips connector | |
| CN201714335U (en) | Compressed double-sealed open hole packer | |
| CN201176866Y (en) | Fixed pressure production mandrel | |
| CN104563956A (en) | Two-way anchored well plugging device | |
| CN102200001B (en) | Bidirectional anchor packer | |
| CN202325383U (en) | Drag fracturing packer for horizontal well | |
| CN202348212U (en) | Annular hydraulic compression type packer | |
| CN203321417U (en) | Slip-free facture packer for oil and gas fields | |
| CN202850935U (en) | Y521 packer | |
| CN206319847U (en) | A kind of hydraulic suspension hanging device for crossing oil pipe | |
| CN202731826U (en) | Constant-pressure opening blanking plug used for separated-layer water injection | |
| CN204283318U (en) | High temperature high voltage resistant tubing packer | |
| CN201031647Y (en) | Stop production well head packer | |
| CN204827341U (en) | Crowded plugging device of annotating |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140409 |
|
| CX01 | Expiry of patent term |