CN1601048A - Fixed pipe column multi-layer repeated layer-adjusting oil extraction underground pipe column and implementation process thereof - Google Patents
Fixed pipe column multi-layer repeated layer-adjusting oil extraction underground pipe column and implementation process thereof Download PDFInfo
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- CN1601048A CN1601048A CN 03157544 CN03157544A CN1601048A CN 1601048 A CN1601048 A CN 1601048A CN 03157544 CN03157544 CN 03157544 CN 03157544 A CN03157544 A CN 03157544A CN 1601048 A CN1601048 A CN 1601048A
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- rod
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- tubular column
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- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000000605 extraction Methods 0.000 title abstract 4
- 238000005086 pumping Methods 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 abstract description 14
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000011084 recovery Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 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
- 239000003129 oil well Substances 0.000 description 1
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Abstract
The invention discloses an oil extraction underground pipe column with a fixed pipe column for oil extraction and a multi-layer repeated layer adjustment and an implementation process thereof, which are suitable for an oil extraction well with multiple layers adjusted. The underground pipe column is divided into two parts of a production pipe column and a releasing pipe column, and mainly comprises a polished rod, a sucker rod, a rod type oil pump, a releasing joint, a packer, a layer changing switch, a switch controller, a lifting rod, an oil pipe, a plug and the like. The invention can realize the repeated exchange of a plurality of oil layers, and has simple operation, reliable work and high success rate.
Description
One, technical field
The present invention relates to producing well down-hole string and implementing process thereof that a kind of oil exploitation underground equipment and technology, particularly multilayer branch are adopted.
Two, technical background
Oil production by layer is one of important measures of oil field later development.In the prior art, Chinese patent application (publication number CN1357677A, open day on July 10th, 2002) " changing layer production method and process pipe string " discloses a kind of layer production method and process pipe string of changing, it mainly is to add hydraulic pressure by ground pump truck in well to open or close the hydraulic pressure seam change switch, opening or closing of hydraulic pressure reversing switch is to realize by well interior pressure and the pairing formation pressure difference of hydraulic pressure reversing switch, its defective is: formation pressure is to change, it is a uncertain value, therefore pressure and the pairing formation pressure difference of hydraulic pressure reversing switch in the well also is difficult to determine, in addition in production reality, need change the oil reservoir of layer production and be familiar with unclear oil reservoir often, the pressure of this oil reservoir, parameter such as moisture is unclear, therefore opens pairing hydraulic pressure reversing switch by the ground pump truck pressure and the pressure differential on stratum and is difficult to realization; Because of ground pump truck is big owing to discharge capacity, be difficult to be controlled at a certain force value accurately again.Therefore, when layer operation is changed in the down-hole, be difficult to judge that accurately some hydraulic pressure reversing switches are to open or cut out, be difficult to when particularly a plurality of oil reservoirs being changed realize.Chinese patent application (publication number CN1389639A, open day on January 8th, 2003) " fixed tubular column layering production down-hole string and implementing process thereof " disclosed this layering production down-hole string and implementing process, weak point is the producing well that only is applicable to the two-layer oil recovery of branch, inapplicable for the multilayer oil production by layer, and can not realize two laminated adopting.
Three, summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, provide a kind of fixed tubular column multilayer to repeat to transfer layer producing well lower tubular column and implementing process thereof.
For realizing that the technical scheme that the object of the invention is taked is:
A kind of fixed tubular column multilayer repeats to transfer layer producing well lower tubular column, form by the flow string and the tubing string of giving up, wherein flow string mainly is made up of polished rod, sucker rod, oil pipe, rod-type pumping unit pump barrel, piston and standing valve cover etc., the tubing string of giving up mainly is made up of back-off sub, packer, seam change switch, on-off controller, lifting rod and plug etc., lifting rod by screwed connection in standing valve cover bottom; On-off controller is installed on the lifting rod; The upper and lower packer that is connected with respectively of seam change switch; Seam change switch and on-off controller have 2 covers at least.
On-off controller and the corresponding distance X of seam change switch on tubing string is axial
1, X
2... .X
nBe not wait, and X
1To X
nBe to increase step by step or reduce step by step on length.
A kind of fixed tubular column multilayer repeats to transfer layer implementing process of producing well lower tubular column to be, provide power by the ground crane, on carry polished rod to drive sucker rod, piston, rod-type pumping unit pump barrel, lifting rod, on-off controller up, the height of carrying polished rod on the ground determines opening or closing of a certain seam change switch.
Adopt technical scheme of the present invention can obtain following effect:
1, changes oil reservoir with carrying polished rod on the crane, simple to operate, reliable operation, success rate height;
2, can realize the transposing that repeats of a plurality of oil reservoirs;
Four, description of drawings
Fig. 1 is a down-hole string structural representation of the present invention.
Five, the specific embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
Referring to Fig. 1, a kind of fixed tubular column multilayer repeats to transfer the down-hole string of layer oil recovery, form by flow string (A) and the tubing string of giving up (B), wherein flow string (A) mainly is made up of polished rod (1), sucker rod (2), oil pipe (3), rod-type pumping unit pump barrel (4), piston (5) and standing valve cover (6) etc., and the tubing string of giving up mainly is made up of back-off sub (7), packer (8), seam change switch (9), on-off controller (10), lifting rod (11) and plug (13) etc.Described lifting rod (11) by screwed connection in standing valve cover (6) bottom; On-off controller (10) is installed on the lifting rod (11); Upper and lower packer (8), (12) of being connected with respectively of seam change switch (9); Seam change switch (9) and on-off controller (10) have 2 covers at least.
On-off controller (10) and the corresponding distance X of seam change switch (9) on tubing string is axial
1, X
2... .X
nBe not wait, and X
1To X
nBe to increase step by step or reduce step by step on length.
The seam change switch (9) that is connected back-off sub (7) bottom is positioned between corresponding two packers (8), (12), and seam change switch (9) adopts unidirectional runner, and the fluid in the limiting boot (15) flows to oil reservoir (14).
Earlier the present invention is lowered in the sleeve pipe (15) by design, beat hydraulic pressure from well head and make packer (8), (12) seat envelope, the upper and lower of reservoir plugging (14), reversing switch (9) is connected on the bottom of packer (8), (12), continues to beat hydraulic pressure from well head the flow string of the present invention and the tubing string (A and B) of giving up are separated from standing valve cover (6) and back-off sub (7).Between on-off controller (10) reversing switch (9) relative be: X at the distance relation of tubing string on axially with it
n-X
N-1=X
4-X
3=X
3-X
2=X
2-X
1=1～2m, sucker rod (2) top is connected with the bottom of polished rod (1), and the bottom is connected with the top of piston (5), and rod-type pumping unit pump barrel (4) seat is on standing valve cover (6).
During the oil well ordinary production, the polished rod (1), sucker rod (2), the piston (5) that are driven this flow string by oil pumper are reciprocating, the liquid that single current passage by reversing switch (9) in the oil reservoir enters in the sleeve pipe (15) is thus lifted to ground, and the rod-type pumping unit pump barrel (4) of this flow string (A), the tubing string (B) of giving up below the standing valve cover (6) do not move with polished rod (1).
In the time of need transferring layer to recover the oil, carry polished rod (1) on the ground by crane, by polished rod (1) drive sucker rod (2), piston (5) is up, when piston (5) is up to the top of rod-type pumping unit pump barrel (4), it is up together to drive rod-type pumping unit pump barrel (4), lifting rod (11), on-off controller (10), when on-off controller (10) passes through seam change switch (9) from bottom to top, will open or close seam change switch (9), and on-off controller (10) when passing through seam change switch (9) from the top down duty do not change.The mechanical switch controller opens or closes under the up height control well of polished rod.
Suppose present oil reservoir (14
1), oil reservoir (14
3) open oil reservoir (14
2), oil reservoir (14
4) close.Now a certain oil reservoir is changed layer production.
1, if wants oil reservoir (14
1), oil reservoir (14
3) close, with oil reservoir (14
2), oil reservoir (14
4) open and change layer production, the steps include: with carrying polished rod (1) on the crane, drive sucker rod (2), piston (5) is up, when polished rod (1) is up to the maximum length of stroke S of piston (5) at rod-type pumping unit pump barrel (4), rod-type pumping unit pump barrel (4), lifting rod (11), on-off controller (10) will with polished rod (1) uplink synchronization.Polished rod (1) is gone up the raising degree greater than S+X
4The time, on-off controller (10) all can pass the reversing switch corresponding with it (9), at this moment respectively with oil reservoir (14
2), oil reservoir (14
4) corresponding reversing switch (9) opens, with oil reservoir (14
1), oil reservoir (14
3) corresponding reversing switch (9) cuts out.Transfer polished rod (1) then to bumping the pump position, just realized above-mentioned purpose.
2, if want oil reservoir (14
1), oil reservoir (14
3) oil reservoir (14
4) close, only with oil reservoir (14
2) change layer and produce, the steps include: with carrying polished rod (1), sucker rod (2), piston (5) on the crane up, when polished rod (1) is up to the maximum length of stroke S of piston (5) at rod-type pumping unit pump barrel (4), rod-type pumping unit pump barrel (4), lifting rod (11), on-off controller (10) will with polished rod (1) uplink synchronization, polished rod (1) is gone up the raising degree greater than S+X
3And less than S+X
4The time, with oil reservoir (14
1) corresponding reversing switch (9) cuts out, with oil reservoir (14
2) corresponding reversing switch (9) opens, with oil reservoir (14
3) corresponding reversing switch (9) cuts out, and transfers polished rod (1) then to bumping the pump position, just realized above-mentioned purpose.
Claims (3)
1, a kind of fixed tubular column multilayer repeats to transfer layer producing well lower tubular column, form by flow string (A) and the tubing string of giving up (B), wherein flow string (A) mainly is made up of polished rod (1), sucker rod (2), oil pipe (3), rod-type pumping unit pump barrel (4), piston (5) and standing valve cover (6) etc., the tubing string (B) of giving up mainly is made up of back-off sub (7), packer (8), seam change switch (9), on-off controller (10), lifting rod (11) and plug (13) etc., it is characterized in that:
A, lifting rod (11) by screwed connection in standing valve cover (6) bottom;
B, on-off controller (10) are installed on the lifting rod (11);
C, upper and lower packer (8), (12) of being connected with respectively of seam change switch (9);
D, seam change switch (9) and on-off controller (10) have 2 covers at least.
2, fixed tubular column multilayer according to claim 1 repeats to transfer layer producing well lower tubular column, it is characterized in that: on-off controller (10) and the corresponding distance X of seam change switch (9) on tubing string is axial
1, X
2... .X
nBe not wait, and X
1To X
nBe to increase step by step or reduce step by step on length.
3, a kind of fixed tubular column multilayer repeats to transfer layer implementing process of producing well lower tubular column, provide power by the ground crane, on carry polished rod (1) to drive sucker rod (2), piston (5), rod-type pumping unit pump barrel (4), lifting rod (11), on-off controller (10) up, it is characterized in that the height of carrying polished rod on the ground determines opening or closing of a certain seam change switch (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03157544 CN1601048A (en) | 2003-09-24 | 2003-09-24 | Fixed pipe column multi-layer repeated layer-adjusting oil extraction underground pipe column and implementation process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03157544 CN1601048A (en) | 2003-09-24 | 2003-09-24 | Fixed pipe column multi-layer repeated layer-adjusting oil extraction underground pipe column and implementation process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1601048A true CN1601048A (en) | 2005-03-30 |
Family
ID=34660351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03157544 Pending CN1601048A (en) | 2003-09-24 | 2003-09-24 | Fixed pipe column multi-layer repeated layer-adjusting oil extraction underground pipe column and implementation process thereof |
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|---|---|
| CN (1) | CN1601048A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100441830C (en) * | 2005-12-24 | 2008-12-10 | 中国石化胜利油田有限公司采油工艺研究院 | Releasing gadget sealing insertion head gas-injection tube pile |
| CN100458099C (en) * | 2005-12-24 | 2009-02-04 | 中国石化胜利油田有限公司采油工艺研究院 | Oil production device for gas-drive well |
| CN102852467A (en) * | 2011-06-30 | 2013-01-02 | 中国石油天然气股份有限公司 | Layered oil production process tubular column for protecting oil layer |
| CN104989326A (en) * | 2015-06-24 | 2015-10-21 | 北京千永科技有限公司 | Regulating separate layer production string and separate layer oil production method |
| CN109267998A (en) * | 2018-10-09 | 2019-01-25 | 中国石油天然气股份有限公司 | Water plugging finding pipe column and method for separate mining and separate measurement of casing well completion horizontal well |
-
2003
- 2003-09-24 CN CN 03157544 patent/CN1601048A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100441830C (en) * | 2005-12-24 | 2008-12-10 | 中国石化胜利油田有限公司采油工艺研究院 | Releasing gadget sealing insertion head gas-injection tube pile |
| CN100458099C (en) * | 2005-12-24 | 2009-02-04 | 中国石化胜利油田有限公司采油工艺研究院 | Oil production device for gas-drive well |
| CN102852467A (en) * | 2011-06-30 | 2013-01-02 | 中国石油天然气股份有限公司 | Layered oil production process tubular column for protecting oil layer |
| CN104989326A (en) * | 2015-06-24 | 2015-10-21 | 北京千永科技有限公司 | Regulating separate layer production string and separate layer oil production method |
| CN109267998A (en) * | 2018-10-09 | 2019-01-25 | 中国石油天然气股份有限公司 | Water plugging finding pipe column and method for separate mining and separate measurement of casing well completion horizontal well |
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