CN1357677A - Stratum-changing production method and technical pipe column - Google Patents
Stratum-changing production method and technical pipe column Download PDFInfo
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- CN1357677A CN1357677A CN 00129407 CN00129407A CN1357677A CN 1357677 A CN1357677 A CN 1357677A CN 00129407 CN00129407 CN 00129407 CN 00129407 A CN00129407 A CN 00129407A CN 1357677 A CN1357677 A CN 1357677A
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- tubing string
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Abstract
The present invention discloses a method of stratum-changing production and technological pipe column in oil exploitation. After the technological pipe column is set in the well and liquid pressure is applied, the well switches are opened or closed in the stratums to be changed. The technological pipe column controlled by surface switch controlling and detecting device consists of casing valves, well mouth four-way valve, oil relieving device, pump, casing, oil pipe, packer, well switches and pipe plug. There is a change-over device set between the pump and the packer and after the pipe column is set to preset position, the pipe column is separated.
Description
The present invention relates to from oil well, exploit the method and apparatus of oil gas, water, relate in particular to a kind of oil, gas, well fixed tubular column and change a method and the process pipe string that layer is produced.
One piece of delivering on the 23rd volume first phase of " drilling technology " magazine that drilling process establishment portion publishes is entitled as " operation of mechanical water searching and blocking one-trip string is in the application of Shanshan oil field 86 wells " literary composition, disclose a kind of layer tubing string that change, its structure is made up of pump, waterpower switching tools, packer, sliding sleeve, plug.Its objective is and change layer, water detection, water blockoff.But it exists tubing string is the monolithic tubing string, also need to remove rod string when changing layer, pitching then, change a layer operation and add hydraulic pressure from oil pipe, the waterpower switching tools can only switch once, can not reuse, need trip out whole tubing strings during pump detection and workover, the work operations amount is big, changes a layer tubing string life-span weak point, cause pump detection period short, shortcoming or deficiencies such as cost height.
The purpose of this invention is to provide a kind of layer production method and process pipe string of changing, it has the releasing type tubing string, there is down-hole switch computer control checkout gear on ground, only need in sleeve pipe, to add hydraulic pressure, pump detection and workover does not need to trip out and changes a layer tubing string, and the down-hole switch instrument is reusable, and it is long to change layer tubing string life-span, production cycle is long, the work operations amount is little, and low cost and other advantages overcomes fully or avoided above-mentioned shortcoming of the prior art or deficiency.
The objective of the invention is to reach like this:
A layer production method changed in a kind of oil exploitation, has following steps: be lowered in the well and change a layer production technology tubing string; Adding hydraulic pressure in the well makes the down-hole switch TO that need change layer place or closes.A, its process pipe string that is lowered to are the releasing type process pipe string, and it is deep well pump disconnected from each other the opening of tubing string up and down, and the later stage is when carrying out pump detection and workover, the tubing string of can motionlessly giving up; When adding hydraulic pressure in b, the well, only in sleeve pipe, add hydraulic pressure and get final product; C, when changing layer, there is supporting down-hole switch control checkout gear on ground, writes down and show the open and close situation of pressure, time and each layer switching tools automatically.
Change a layer production technology tubing string and comprise sleeve gate, well head four-way, bleeder, pump, sleeve pipe, oil pipe, packer, down-hole switch and plug.Be connected with a releasing device between pump and packer, tubing string is constituted the releasing type process pipe string, in the time of will changing a layer tubing string and be lowered into design attitude, releasing device is given up, and the tubing string that releasing device is upper and lower is separated.Supporting down-hole switch control checkout gear on ground, it can make the judge rightly open and close state of down-hole switch instrument of people, the accuracy and the success rate of guaranteeing to change layer.
Purpose of the present invention can also reach by following measure:
The supporting down-hole switch control checkout gear in ground is the computer program control device, comprises computer, pressure sensor, data collecting card and the connecting tube that is communicated with sleeve pipe.According to data such as self registering pressure, time and fluid floies, provide the judgement findings data of changing layer success or not.When in sleeve pipe, adding hydraulic pressure, when being forced into down-hole switch commutation pressure reduction, there is the pump pressure bust to show, illustrates and change layer success.
The releasing type tubing string is to break away to be connected between pump and releasing device, makes whole tubing string be divided into two parts.Releasing device comprises: top connection (18), adapter sleeve (19), shear pin (20), steel ball (25), baffle ring (26), control piston (23), pressure cap (24), sealing shroud (25), lock dog (26) and fishing head (27).The supporting down-hole switch control checkout gear (3) in ground is the computer program control device, is made of pipe nipple (14), pressure sensor (15), data collecting card (16) and computer (17).
The drawing of accompanying drawing is described as follows:
Fig. 1 is an embodiment of the invention process pipe string structural representation;
Fig. 2 is down-hole switch control checkout gear connection diagram among Fig. 1 of the present invention;
Fig. 3 is the structure sectional view of releasing device (7) among Fig. 1 of the present invention.
The present invention is described in further detail below in conjunction with accompanying drawing:
As Fig. 1, be lowered to the releasing type process pipe string in the sleeve pipe 6, four-way junction of casing (25) splicing sleeve gate (1) connects down-hole switch control device (3) on its outlet.Tubing string (13) is gone up and is connected bleeder (4) and deep well pump (5).Packer (8) (being Y441E high pressure packer) is gone up and is connected DYS hydraulic pressure releasing device (7), installs thus top tubing string and bottom tubing string are separated.YK type hydraulic pressure seam change switch (9) is installed on the tubing string of oil, gas, water layer (12) correspondence position, on the tubing string of the interlayer correspondence position between oil, gas, the water layer (12), device Y341E type high pressure packer (10).Be connected with oil pipe (13) between packer and the hydraulic pressure seam change switch, the bottom connects plug (11).
As Fig. 2, the pipe nipple (14) that control 3 is opened in the down-hole is connected on the outlet of sleeve gate (1), connects upward pressure sensor (15) and data collecting card (16) between computer (17) and the pipe nipple (14).This device utilizes computer program control, provides the open and close situation data of hydraulic pressure seam change switches at different levels exactly, makes to change the layer operation success rate and reached 100%.Computer (17) pressure sensor (15) and data collecting card (16) are the commercially available prod.
As Fig. 3, DYS hydraulic pressure releasing device (7) is installed in Y441E type high pressure packer top connection position.Adapter sleeve 19 1 ends link to each other with top connection (18), the other end links to each other with sealing shroud (25) screw thread, be connected with piston (20) with fishing head (27) respectively with shear pin (20) by lock dog (26) with fishing head (27) simultaneously, Qi Bishang has the liquid flow hole road, is sealed mutually by the inwall of piston.Baffle ring (22) is connected with pressure cap (24) and is enclosed within the external surface of piston (23) and adapter sleeve (19).Steel ball (21) seat is on the ball seat of sealing shroud (25).
Before a plurality of hydraulic pressure seam change switches (9) are gone into the well, need, regulate and go up a hydraulic pressure seam change switch most, the state that opens or closes of a middle hydraulic pressure seam change switch and the most next hydraulic pressure seam change switch according to the production of different oil-water-layers (12).Tubing string is behind design attitude, and the hydraulic setting packer just can be produced one or several oil-water-layer.
When needs reopen or close some or several hydraulic pressure seam change switches (9), pump truck water outlet pipeline inserts sleeve gate (1), and connected down-hole switch control and detection system (3), and import the commutation pressure data of each seam change switch (9), liquid feeding is depressed into the needed commutation pressure reduction of one or several hydraulic pressure seam change switch then, there is this moment the pump pressure bust to show that the down-hole switch control and detection system provides the result automatically simultaneously, proves that each hydraulic pressure seam change switch opens or closes.
The present invention has following characteristics compared with prior art:
1, changes layer and produce simple and conveniently, only need a pump truck (water distribution tank car) and an operating personnel, do not need to move tubing string With the dismounting well head, just can change a layer operation, saved operating cost.
2, change a layer operation and be easy to control, the success rate height, the field experiment success rate reaches 100%; There is the pump pressure bust aobvious when changing layer Show, and have down-hole switch control detection system automatically to provide to change a layer result.
3, the layering instrument adopts Y441E, the Y341E high-pressure packer is supporting is used in combination, and it is identical to set pressure reduction, compatibility Get well, and support the use with hydraulic releasing tool, simple to operation, the whole layer tubing string that change only has a two-way anchor fixed point, has Be beneficial to protective casing.
4, can repeat to change layer, satisfy the needs that in time change layer production in producing, improve oil production efficiency and oil recovery efficiency.
5, the tubing string life-span long, adopt Back-off Pipe String, the later stage can motionlessly be given up during pump detection and workover and be changed a layer control tubing string, has reduced The difficulty of productive completion tubing string cost and later stage pump detection and workover and workload.
6, applicability is wide, and the present invention goes in the DP technology of straight well, inclined shaft and directional well.
Claims (7)
1, a layer production method changed in a kind of oil exploitation, may further comprise the steps: be lowered to process pipe string in the well; Add hydraulic pressure in the well, make the down-hole switch TO that need change layer place or close, it is characterized in that:
A) process pipe string that is lowered in the well is the releasing type structure;
When b) adding hydraulic pressure in the well, in sleeve pipe, carry out;
When c) changing layer, there is supporting down-hole switch control checkout gear on ground, writes down and show the open and close situation of pressure, time and each switching tools automatically.
2, layer production method of changing according to claim 1, it is characterized in that the supporting down-hole switch control checkout gear in ground is the computer program control device, comprise microcomputer (17), pressure sensor (15), data collecting card (16) be connected with sleeve pipe (6) be connected pipe nipple (14).
3, layer production method of changing according to claim 1 and 2, when it is characterized in that in sleeve pipe, adding hydraulic pressure, connect down-hole switch control checkout gear, be forced into down-hole switch commutation pressure reduction, there is the pump pressure bust to show that simultaneous computer demonstrates the judgement findings data of changing layer success or not.
4, a kind of layer production technology tubing string that change, comprise sleeve gate (1), well head four-way (2), bleeder (4), deep well pump (5), sleeve pipe (6), oil pipe (12), packer (8), hydraulic pressure seam change switch (9) and plug (10), it is characterized in that tubing string adopts the releasing type tubing string, be connected a releasing device (7) between deep well pump (5) and the packer (8), supporting down-hole switch control checkout gear (3) on ground.
5, layer production technology tubing string that change according to claim 4 is characterized in that the releasing type tubing string is to break away to be connected between deep well pump (5) and releasing device (7).
6, according to a claim 4 or the 5 described layer production technology tubing string that change, it is characterized in that releasing device (7) comprises top connection (18), adapter sleeve (19), shear pin (20), steel ball (21), baffle ring (22), control piston (23), pressure cap (24), sealing shroud (25), lock dog (26) and fishing head (27).
7, layer production technology tubing string that change according to claim 4, it is characterized in that the supporting down-hole switch control checkout gear (3) in ground is the computer program control device, is made of pipe nipple (14), pressure sensor (15), data collecting card (16) and computer (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001294075A CN1141491C (en) | 2000-12-12 | 2000-12-12 | Stratum-changing production method and technical pipe column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001294075A CN1141491C (en) | 2000-12-12 | 2000-12-12 | Stratum-changing production method and technical pipe column |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1357677A true CN1357677A (en) | 2002-07-10 |
| CN1141491C CN1141491C (en) | 2004-03-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001294075A Expired - Fee Related CN1141491C (en) | 2000-12-12 | 2000-12-12 | Stratum-changing production method and technical pipe column |
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| Country | Link |
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| CN (1) | CN1141491C (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1303310C (en) * | 2003-12-20 | 2007-03-07 | 陈琳 | Method for water searching and blocking for oil well |
| CN101906954A (en) * | 2010-08-05 | 2010-12-08 | 中国石油化工股份有限公司 | Layering sand-control layering oil production integrated pipe column |
| 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 |
| CN101761332B (en) * | 2010-01-10 | 2013-01-30 | 蓝鲁哲 | Up-running-proof pipe string sealing check device |
| CN103806901A (en) * | 2012-11-08 | 2014-05-21 | 中国石油大学(北京) | Oil well downhole rapid test system and test method |
| CN104612636A (en) * | 2015-01-22 | 2015-05-13 | 中国石油大学(华东) | Automatic underground layer change device for oil well multilayer exploitation |
| CN104373108B (en) * | 2014-10-31 | 2017-07-07 | 绵阳固美科技有限公司 | A kind of method and device for controlling downhole detection device to switch |
| CN112832724A (en) * | 2021-01-06 | 2021-05-25 | 中国石油天然气股份有限公司 | Drainage and production integrated tubular column capable of intelligently controlling pressure of shaft and use method of drainage and production integrated tubular column |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100422504C (en) * | 2004-11-27 | 2008-10-01 | 大庆油田有限责任公司第一采油厂 | Method of regulating layered water distribution using pressure wave |
| 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 |
| 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 |
-
2000
- 2000-12-12 CN CNB001294075A patent/CN1141491C/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1303310C (en) * | 2003-12-20 | 2007-03-07 | 陈琳 | Method for water searching and blocking for oil well |
| CN101761332B (en) * | 2010-01-10 | 2013-01-30 | 蓝鲁哲 | Up-running-proof pipe string sealing check device |
| CN101906954A (en) * | 2010-08-05 | 2010-12-08 | 中国石油化工股份有限公司 | Layering sand-control layering oil production integrated pipe column |
| 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 |
| CN103806901A (en) * | 2012-11-08 | 2014-05-21 | 中国石油大学(北京) | Oil well downhole rapid test system and test method |
| CN103806901B (en) * | 2012-11-08 | 2016-06-08 | 中国石油大学(北京) | The method of testing of oil well fast testing system |
| CN104373108B (en) * | 2014-10-31 | 2017-07-07 | 绵阳固美科技有限公司 | A kind of method and device for controlling downhole detection device to switch |
| CN104612636A (en) * | 2015-01-22 | 2015-05-13 | 中国石油大学(华东) | Automatic underground layer change device for oil well multilayer exploitation |
| CN112832724A (en) * | 2021-01-06 | 2021-05-25 | 中国石油天然气股份有限公司 | Drainage and production integrated tubular column capable of intelligently controlling pressure of shaft and use method of drainage and production integrated tubular column |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1141491C (en) | 2004-03-10 |
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