CN108661569A - A kind of environment protection multifunctional oil extraction process tubular column - Google Patents
A kind of environment protection multifunctional oil extraction process tubular column Download PDFInfo
- Publication number
- CN108661569A CN108661569A CN201810737882.8A CN201810737882A CN108661569A CN 108661569 A CN108661569 A CN 108661569A CN 201810737882 A CN201810737882 A CN 201810737882A CN 108661569 A CN108661569 A CN 108661569A
- Authority
- CN
- China
- Prior art keywords
- packing element
- cone
- slips
- extraction process
- environment protection
- 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.)
- Granted
Links
- 238000000605 extraction Methods 0.000 title claims abstract description 16
- 238000012856 packing Methods 0.000 claims abstract description 29
- 238000007789 sealing Methods 0.000 claims abstract description 18
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 238000011010 flushing procedure Methods 0.000 abstract description 10
- 239000012530 fluid Substances 0.000 abstract description 6
- 239000003921 oil Substances 0.000 description 24
- 238000000034 method Methods 0.000 description 10
- 238000003801 milling Methods 0.000 description 8
- 238000011084 recovery Methods 0.000 description 5
- 239000010779 crude oil Substances 0.000 description 4
- 239000003129 oil well Substances 0.000 description 3
- 238000002627 tracheal intubation Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B31/00—Fishing for or freeing objects in boreholes or wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/126—Packers; Plugs with fluid-pressure-operated elastic cup or skirt
- E21B33/1265—Packers; Plugs with fluid-pressure-operated elastic cup or skirt with mechanical slips
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Marine Sciences & Fisheries (AREA)
- Mechanical Engineering (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of environment protection multifunctional oil extraction process tubular columns, including part and the packer of giving up, the part of giving up includes top connection, centralizer body, connecting leg, screen casing, the connecting leg lower end is equipped with fishing head, hanging sleeve is equipped on the inside of the fishing head, the hanging sleeve lower end outside is equipped with connector sleeve, packing element is equipped with below the connector sleeve, mandrel is equipped on the inside of the packing element, the packing element lower end is equipped with packing element axis, it is equipped with cone one below the packing element axis, one lower end of cone is equipped with slips, the slips lower end is equipped with cone two, two lower section of cone is equipped with piston, lock tube is equipped with below the piston, cylinder sleeve and lock are equipped in the lock tube, sealing element is equipped with below the lock, lower contact is equipped with below the sealing element.The advantages of the present invention over the prior art are that：It can be used in a variety of hole conditions, flushing fluid polluted reservoir when can prevent anti-flushing well, and it is various to unseal mode.
Description
Technical field
The present invention relates to technical field of oil extraction equipment, in particular to a kind of environment protection multifunctional oil extraction process tubular columns.
Background technology
China majority oil field is formed among continental sedimentary basin, and reservoir geology is complicated, after oil well completion, stratum energy
Amount, hole condition and production fluid physical property are varied, in crude oil extraction, if the self-energy of oil well cannot will be in pit shaft
Crude oil gives rise to ground, it is necessary to artificial lift is carried out in a manner of using based on mechanical oil recovery, flow string is mechanical oil recovery
The component part of system is located in pit shaft, and role is the crude oil in the energy transmission to pit shaft by ground, and is lifted
To ground, flow string is divided into ordinary crude oils flow string and heavy oil production tubing string two major classes, but does not have in existing flow string
There is one kind that can be used in a variety of hole conditions such as oil field straight well, inclined shaft, horizontal well, closure, closes valve, well-flushing, oil recovery at intubation, valve opening
The flow string that one-trip string is completed, and in anti-flushing well, flushing fluid is easy polluted reservoir, and deblocking mode is single.
Invention content
The purpose of the present invention is the technological deficiencies more than overcoming, and providing one kind can be in oil field straight well, inclined shaft, horizontal well etc.
A variety of hole conditions use, closures, intubation, valve opening, pass valve, well-flushing, the completion of oil recovery one-trip string, flushing fluid when can prevent anti-flushing well
Polluted reservoir, and unseal the various environment protection multifunctional oil extraction process tubular column of mode.
In order to solve the above technical problems, technical solution provided by the invention is：A kind of environment protection multifunctional oil extraction process tubular column,
Including part and the packer of giving up, the part of giving up includes top connection, centralizer body, connecting leg, screen casing, the packer packet
The remaining part for removing part of giving up is included, the connecting leg lower end is equipped with fishing head, hanging sleeve, institute are equipped on the inside of the fishing head
The hanging sleeve lower end outside stated is equipped with connector sleeve, and packing element is equipped with below the connector sleeve, mandrel, institute are equipped on the inside of the packing element
The packing element lower end stated is equipped with packing element axis, and cone one is equipped with below the packing element axis, and one lower end of cone is equipped with slips, institute
The slips stated is equipped with spring, and slips cover is equipped with outside the slips, and the slips lower end is equipped with cone two, the cone
For two lower section of body equipped with piston, piston lower section is equipped with lock tube, and cylinder sleeve and lock, lock lower section are equipped in the lock tube
Equipped with sealing element, the sealing element is equipped with sealing clamp spring, and lower contact is equipped with below the sealing element.
The advantages of the present invention over the prior art are that：The present invention collects closure, intubation, valve opening, closes valve, well-flushing, oil recovery
Etc. multiple functions in one, one-trip string is completed；Process pipe string give up partial insertion packer when open oil reservoir channel, when lifting
Oil reservoir channel is closed, it is easy to operate, operating cost is substantially saved, hydraulic pressure is equipped on the anti-pollution packer of horizontal well that can bore drag for
Back-off sub, if phenomena such as packer card tubing string occurs, can put aside from hydraulic release joint, propose the oil of upper part
Pipe, then dialled by force or hydraulic pressure salvage lower part water injection technological string, mode of the process pipe string equipped with a variety of deblockings come reduce deblocking
The probability of card tubing string；Packer can bore milling deblocking, set milling deblocking and Special fishing tool can be descended to unseal, to improve packer
Deblocking rate.
As an improvement, being equipped with standby cap one between the connector sleeve and packing element.
As an improvement, being equipped with shear pin one on the inside of the connector sleeve.
As an improvement, the packing element is equipped with spacer ring.
As an improvement, being equipped with standby cap two between the packing element and packing element axis.
As an improvement, the slips is equipped with nut.
As an improvement, two inside of cone is equipped with shear pin two, two lower end of cone is equipped with shear pin three.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of environment protection multifunctional oil extraction process tubular column of the present invention.
As shown in the figure：1, top connection, 2, centralizer body, 3, connecting leg, 4, fishing head, 5, hanging sleeve, 6, connector sleeve, 7, standby cap one,
8, packing element, 9, spacer ring, 10, mandrel, 11, standby cap two, 12, packing element axis, 13, cone one, 14, spring, 15, slips, 16, slips
Cover, 17, nut, 18, cone two, 19, piston, 20, lock tube, 21, cylinder sleeve, 22, lock, 23, sealing element, 24, sealing clamp spring, 25,
Screen casing, 26, lower contact, 27, shear pin one, 28, shear pin two, 29, shear pin three.
Specific implementation mode
The present invention is described in further detail below.
It is setting：
1, lower tubular column：After design requirement drifting, scraping, well-flushing, successively by process pipe string, pump lower valve, oil well pump, oil pipe
Connect G.I.H projected depth；
2, it connects ground and suppresses pipeline, lift tubing string with elevator, distance of the elevator lower face away from wellhead flange will be maintained at
0.3~0.5 meter (this height is tubing string elongation, is conveniently to close valve back seat well head, on-fixed height).
3, process pipe string is setting gives up：With cementing truck, into oil pipe, small displacement water filling is suppressed, when acting on process pipe string
Pressure difference reach each voltage stabilizing 3 minutes when 6MPa, 10MPa, 15MPa, 18MPa, act on the pressure difference on process pipe string according to technique
Design of string pipe sets level determination in pressure and well and (acts on the instant pressure+liquid level of pressure difference=pump truck on process pipe string
Depth pressure and hydrostatic pressure), tool pressure release when 20~22Mpa, process pipe string part of giving up is disengaged with packer, and realization is given up.
4, close that valve is counter suppresses logical pump：Upper lifting pipe post 1m or more (screen section for part of giving up is proposed into excluder portion,
Process pipe string lower end valve is set to close), counter to pump lower valve pressure release when suppressing 4~6Mpa, oil pipe uphole end overflow forms backwash and follows
Ring.
5, valve opening is recovered the oil：Tubing string, pressure pipe column 3-5T are transferred, valve opening can normally recover the oil at this time.
Deblocking：(two kinds of deblocking modes)
1, lower Special fishing tool is salvaged
When packer needs go out from well, lower Special fishing tool to top of fish, ballast 30-50KN or so after sand washing delays
Slow upper lifting pipe post, when act on bridge plug when above carrying load and reaching 20-40KN, packer is unsealed, and continuously plays pipe 5.After
Continue pipe to operate to outside tubing string proposition well.
2, milling unseals：(recommending set milling, another because of unfinished contrived experiment, shown length dimension and for reference)
Stayed in after putting aside length 1403mm in well (.Milling diameter 80-114mm (slips thickness 20mm) is covered, milling length is covered
(set milling length is only to release anchoring to 210mm, does not include packing element length, that is, can also be beaten remainder after covering milling 210mm
Fishing)
Packer operating principle
When water pressure generation is setting, when pressure reaches 6Mpa, liquid-driving shear pin 3 29 is cut by cone 2 18 and piston 19,
2 18 uplink of cone, 19 downlink of piston, 2 18 uplink of cone drive 22 uplinks of cylinder sleeve 21 and lock, are locked on lock tube 20, simultaneously
2 18 uplink of cone also pushes cone 1, spring 14, slips 15, slips cover 16,17 uplink of nut, by cone 1 and cone
2 18 extruding, slips 15, compressed spring 14 and expansion, slips 15 are anchored to internal surface of sleeve pipe, and lock tube is pushed by 19 downlink of piston
20, mandrel 10, fishing head 4, hanging sleeve 5, connector sleeve 6, standby cap 1 squeeze packing element 8 and expansion, sleeve ring chamber are insulated, when pressure reaches
When to 20Mpa, slips 15 is anchored securely, and 8 swollen envelope of packing element is completed, and 22 uplinks of lock stop, and are locked on lock tube 20,20~22Mpa
When shear pin 2 28 cut by connecting leg 3 and mandrel 10, top connection at this time 1, centralizer body 2, connecting leg 3, sealing 23, sealing clamp spring 24, sieve
Pipe 25, lower contact 26 form the fluid course opened, tool pressure release, and packer is given up and partly disengaged with packing part, and realization is lost
Hand.
Upper lifting pipe post, packer are given up part uplink, and screen casing 25 goes upward to fixed position with dynamic sealing clamp spring 24 and disengages, this
When sealing clamp spring 24 lower end matched with sealing element 23, seal the channel sealed between clamp spring 25 and lower contact 26, make liquid stream
Channel is closed, and counter to pump lower valve pressure release when suppressing 4~6Mpa, oil pipe uphole end overflow forms backwash cycles.
Tubing string is transferred, packer is given up part downlink, pressure pipe column 3-5T, and screen casing 25 comes downwards to fixation with dynamic sealing clamp spring 24
Position disengages, and seals position when clamp spring 24 restores setting at this time, and fluid course is opened, can normally be recovered the oil at this time.
The present invention and its embodiments have been described above, this description is no restricted, shown in attached drawing
Only one of embodiments of the present invention, actual structure is not limited to this.All in all if the ordinary skill of this field
Personnel are enlightened by it, without departing from the spirit of the invention, are not inventively designed and the technical solution phase
As frame mode and embodiment, be within the scope of protection of the invention.
Claims (7)
1. a kind of environment protection multifunctional oil extraction process tubular column, it is characterised in that：Including part and the packer of giving up, the portion of giving up
It includes top connection (1), centralizer body (2), connecting leg (3), screen casing (25) to divide, and the packer includes remaining for removing part of giving up
Component, the connecting leg (3) lower end are equipped with fishing head (4), hanging sleeve (5), the hanging sleeve are equipped on the inside of the fishing head (4)
(5) lower end outside is equipped with connector sleeve (6), and packing element (8) is equipped with below the connector sleeve (6), is equipped on the inside of the packing element (8)
Mandrel (10), the packing element (8) lower end are equipped with packing element axis (12), cone one (13) are equipped with below the packing element axis (12),
Described cone one (13) lower end is equipped with slips (15), and the slips (15) is equipped with spring (14), the slips (15)
Outside is equipped with slips cover (16), and the slips (15) lower end is equipped with cone two (18), is equipped with below the cone two (18)
Piston (19), the piston (19) lower section are equipped with lock tube (20), cylinder sleeve (21) and lock (22) are equipped in the lock tube (20),
Sealing element (23) is equipped with below the lock (22), the sealing element (23) is equipped with sealing clamp spring (24), the sealing
Lower contact (26) is equipped with below part (23).
2. a kind of environment protection multifunctional oil extraction process tubular column according to claim 1, it is characterised in that：The connector sleeve
(6) standby cap one (7) is equipped between packing element (8).
3. a kind of environment protection multifunctional oil extraction process tubular column according to claim 1, it is characterised in that：The connector sleeve
(6) inside is equipped with shear pin one (27).
4. a kind of environment protection multifunctional oil extraction process tubular column according to claim 1, it is characterised in that：The packing element (8)
It is equipped with spacer ring (9).
5. a kind of environment protection multifunctional oil extraction process tubular column according to claim 1, it is characterised in that：The packing element (8)
Standby cap two (11) is equipped between packing element axis (12).
6. a kind of environment protection multifunctional oil extraction process tubular column according to claim 1, it is characterised in that：The slips (15)
It is equipped with nut (17).
7. a kind of environment protection multifunctional oil extraction process tubular column according to claim 1, it is characterised in that：The cone two
(18) inside is equipped with shear pin two (28), and described cone two (18) lower end is equipped with shear pin three (29).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810737882.8A CN108661569B (en) | 2018-07-06 | 2018-07-06 | Environment-friendly multifunctional oil extraction process tubular column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810737882.8A CN108661569B (en) | 2018-07-06 | 2018-07-06 | Environment-friendly multifunctional oil extraction process tubular column |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108661569A true CN108661569A (en) | 2018-10-16 |
| CN108661569B CN108661569B (en) | 2024-09-10 |
Family
ID=63772497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810737882.8A Active CN108661569B (en) | 2018-07-06 | 2018-07-06 | Environment-friendly multifunctional oil extraction process tubular column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108661569B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117489293A (en) * | 2023-12-29 | 2024-02-02 | 中油博淏科技(天津)有限公司 | Packer with double sealing structures |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2283419C1 (en) * | 2005-03-28 | 2006-09-10 | Открытое акционерное общество "Татнефть" им. В.Д. Шашина | Packer |
| CN101382053A (en) * | 2008-10-21 | 2009-03-11 | 张永祥 | Oil well packer |
| CN201269077Y (en) * | 2008-10-17 | 2009-07-08 | 阜新驰宇石油机械有限公司 | Horizontal well plugging process column jacket capable of being dragged and drilled |
| CN201474656U (en) * | 2009-09-11 | 2010-05-19 | 阜新驰宇石油机械有限公司 | Retrievable water shutoff pipe column tool |
| CN206917631U (en) * | 2017-06-10 | 2018-01-23 | 陕西双威石油机械有限公司 | Can bore can drag for the anti-pollution packer of horizontal well |
| CN207296954U (en) * | 2017-08-23 | 2018-05-01 | 陕西双威石油机械有限公司 | Tubing string Anti-breaking wellhead Junk prevention device |
| CN208396664U (en) * | 2018-07-06 | 2019-01-18 | 陕西双威石油机械有限公司 | A kind of environment protection multifunctional oil extraction process tubular column |
-
2018
- 2018-07-06 CN CN201810737882.8A patent/CN108661569B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2283419C1 (en) * | 2005-03-28 | 2006-09-10 | Открытое акционерное общество "Татнефть" им. В.Д. Шашина | Packer |
| CN201269077Y (en) * | 2008-10-17 | 2009-07-08 | 阜新驰宇石油机械有限公司 | Horizontal well plugging process column jacket capable of being dragged and drilled |
| CN101382053A (en) * | 2008-10-21 | 2009-03-11 | 张永祥 | Oil well packer |
| CN201474656U (en) * | 2009-09-11 | 2010-05-19 | 阜新驰宇石油机械有限公司 | Retrievable water shutoff pipe column tool |
| CN206917631U (en) * | 2017-06-10 | 2018-01-23 | 陕西双威石油机械有限公司 | Can bore can drag for the anti-pollution packer of horizontal well |
| CN207296954U (en) * | 2017-08-23 | 2018-05-01 | 陕西双威石油机械有限公司 | Tubing string Anti-breaking wellhead Junk prevention device |
| CN208396664U (en) * | 2018-07-06 | 2019-01-18 | 陕西双威石油机械有限公司 | A kind of environment protection multifunctional oil extraction process tubular column |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117489293A (en) * | 2023-12-29 | 2024-02-02 | 中油博淏科技(天津)有限公司 | Packer with double sealing structures |
| CN117489293B (en) * | 2023-12-29 | 2024-03-22 | 中油博淏科技(天津)有限公司 | Packer with double sealing structures |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108661569B (en) | 2024-09-10 |
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