CN208396664U - 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
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- CN208396664U CN208396664U CN201821069266.1U CN201821069266U CN208396664U CN 208396664 U CN208396664 U CN 208396664U CN 201821069266 U CN201821069266 U CN 201821069266U CN 208396664 U CN208396664 U CN 208396664U
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- extraction process
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Abstract
The utility model 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, cone one is equipped with below the packing element axis, one lower end of cone is equipped with slips, the slips lower end is equipped with cone two, piston is equipped with below the cone two, 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 utility model compared with prior art the advantages of be: can be used in a variety of hole conditions, flushing fluid polluted reservoir when can prevent anti-flushing well, and unseal mode multiplicity.
Description
Technical field
The utility model relates to technical field of oil extraction equipment, in particular to a kind of environment protection multifunctional oil extraction process tubular columns.
Background technique
China majority oil field is formed among continental sedimentary basin, and structure is complicated for reservoir geology, 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 use the mode based on mechanical oil recovery to carry out artificial lift, flow string is mechanical oil recovery
The component part of system is located in pit shaft, and role is the crude oil by the energy transmission on ground into pit shaft, 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 use 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.
Utility model content
The purpose of the utility model is to overcome above technological deficiencies, and providing one kind can be in oil field straight well, inclined shaft, level
A variety of hole conditions such as well use, and closure, intubation, valve opening close valve, well-flushing, the completion of oil recovery one-trip string, can prevent from washing when anti-flushing well
Well liquid polluted reservoir, and unseal the environment protection multifunctional oil extraction process tubular column of mode multiplicity.
In order to solve the above technical problems, technical solution provided by the utility model are as follows: a kind of environment protection multifunctional DP technology
Tubing string, including give up part and packer, the part of giving up includes top connection, centralizer body, connecting leg, screen casing, the envelope
It include the remaining part for removing part of giving up every device, the connecting leg lower end is equipped with fishing head, is equipped on the inside of the fishing head
Hanging sleeve, the hanging sleeve lower end outside are equipped with connector sleeve, packing element are equipped with below the connector sleeve, is equipped on the inside of the packing element
Mandrel, the packing element lower end are equipped with packing element axis, are equipped with cone one below the packing element axis, one lower end of cone is equipped with
Slips, the slips are equipped with spring, slips cover are equipped with outside the slips, and the slips lower end is equipped with cone two,
It is equipped with piston below the cone two, lock tube is equipped with below the piston, cylinder sleeve and lock are equipped in the lock tube, it is described
Lock below be equipped with sealing element, the sealing element is equipped with sealing circlip, is equipped with lower contact below the sealing element.
The utility model compared with prior art the advantages of be: the closure of the utility model collection, intubation, valve opening, close valve, wash
The multiple functions such as well, oil recovery are completed in one, one-trip string；Process pipe string give up partial insertion packer when to open oil reservoir logical
Oil reservoir channel is closed in road when lifting, easy to operate, is substantially saved operating cost, can be fished out the anti-pollution packer of horizontal well that can bore
It is equipped with hydraulic release joint, if phenomena such as packer card tubing string occurs, can put aside from hydraulic release joint, propose it
The oil pipe on top, then dialled by force or hydraulic salvaging lower part water injection technological string, the mode that process pipe string is equipped with a variety of deblockings is come
Reduce the probability of deblocking card tubing string；Packer can bore milling deblocking, set milling deblocking, Special fishing tool can be descended to unseal again, to mention
The deblocking rate of high packer.
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, being equipped with shear pin two on the inside of the cone two, two lower end of cone is equipped with shear pin three.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of environment protection multifunctional oil extraction process tubular column of the utility model.
It is 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 circlip, 25,
Screen casing, 26, lower contact, 27, shear pin one, 28, shear pin two, 29, shear pin three.
Specific embodiment
The utility model 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 end surface away from wellhead flange will be maintained at
0.3~0.5 meter (this height is tubing string elongation, is convenient in pass 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 pressure 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 to suppress logical pump: upper lifting pipe post 1m or more (screen section for part of giving up is proposed into excluder portion,
Close process pipe string lower end valve), 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: decentralization tubing string, pressure pipe column 3-5T, 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 is needed from well out, 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 mentioning load and reaching 20-40KN, packer is unsealed, continuous to play 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 (.Set milling diameter 80-114mm (slips thickness 20mm), set milling length
(set milling length is only to release anchoring to 210mm, does not include packing element length, i.e. can also beat remainder after set 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, are pushed lock tube 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 the swollen envelope of packing element 8 is completed, and 22 uplinks of lock stop, and is 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 circlip 24, sieve
Pipe 25, lower contact 26 form the fluid course opened, tool pressure release, and packer is given up and partially 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 circlip 24 and disengages, this
When sealing 24 lower end of circlip matched with sealing element 23, seal the channel sealed between circlip 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 circlip 24
Position disengages, and seals position when circlip 24 restores setting at this time, and fluid course is opened, can normally be recovered the oil at this time.
The utility model and embodiments thereof are described above, this description is no restricted, shown in attached drawing
Be also one of the embodiments of the present invention, actual structure is not limited to this.All in all if this field
Those of ordinary skill is enlightened by it, without deviating from the purpose of the present invention, not inventively design with
The similar frame mode of the technical solution and embodiment, all should belong to the protection range of the utility model.
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
Dividing includes top connection (1), centralizer body (2), connecting leg (3), screen casing (25), and the packer includes remaining for removing part of giving up
Component, the connecting leg (3) lower end are equipped with fishing head (4), are equipped with hanging sleeve (5) on the inside of the fishing head (4), the hanging sleeve
(5) lower end outside is equipped with connector sleeve (6), is equipped with packing element (8) 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), and cone one (13) is equipped with below the packing element axis (12),
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) are equipped with below the lock (22), the sealing element (23) is equipped with sealing circlip (24), the sealing
Lower contact (26) are 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 cone two (18) lower end is equipped with shear pin three (29).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821069266.1U CN208396664U (en) | 2018-07-06 | 2018-07-06 | A kind of environment protection multifunctional oil extraction process tubular column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821069266.1U CN208396664U (en) | 2018-07-06 | 2018-07-06 | A kind of environment protection multifunctional oil extraction process tubular column |
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| Publication Number | Publication Date |
|---|---|
| CN208396664U true CN208396664U (en) | 2019-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821069266.1U Active CN208396664U (en) | 2018-07-06 | 2018-07-06 | A kind of environment protection multifunctional oil extraction process tubular column |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108661569A (en) * | 2018-07-06 | 2018-10-16 | 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 CN201821069266.1U patent/CN208396664U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108661569A (en) * | 2018-07-06 | 2018-10-16 | 陕西双威石油机械有限公司 | A kind of environment protection multifunctional oil extraction process tubular column |
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