CN2654838Y - Replacing of pipe column under three layer oil extraction without moving pipe column - Google Patents
Replacing of pipe column under three layer oil extraction without moving pipe column Download PDFInfo
- Publication number
- CN2654838Y CN2654838Y CN 200320106412 CN200320106412U CN2654838Y CN 2654838 Y CN2654838 Y CN 2654838Y CN 200320106412 CN200320106412 CN 200320106412 CN 200320106412 U CN200320106412 U CN 200320106412U CN 2654838 Y CN2654838 Y CN 2654838Y
- Authority
- CN
- China
- Prior art keywords
- layer
- pipe
- packer
- oil
- tubing string
- 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 - Fee Related
Links
Abstract
The utility model discloses an improvement of changing the three-layer production well without pulling pipe strings, which is suitable for production well with three layers of oil recovery. The pipe strings comprise a layer pipe string and a separate recovery pipe string, the layer pipe string comprises a layer excluder and sand control pipe; the separate recovery pipe string comprises a layer excluder, a layer changing controller, an external pipe, an internal pipe and a upper sealing part and a lower sealing part; the separate recovery excluder is arranged on a position above the layer pipe string, the layer changing controller is arranged on a position below or above the separate recovery excluder, the layer changing controller is connected with the external pipe and the internal pipe simultaneously, the lower end of the external pipe is arranged between the excluders of the middle layer and the lower layer, the lower end of the internal pipe is arranged below the lower layer excluder, the upper sealing part seals the annular space between the external pipe and layer pipe string and arranged between the middle and the lower sand control pipes, the lower sealing part seals the annular space between the internal pipe and layer pipe string and arranged between the middle and the lower sand control pipes to connect the three switches on the layer changing controller with the three oil layers separately.
Description
Technical field
Down-hole oil production equipment, particularly fixed tubular column that the utility model belongs to petroleum industry change three layers of producing well lower tubular column, are applicable to the producing well of three layers of oil recovery of branch.
Technical background
Oil recovery scene in petroleum industry, often meet the situation that a bite oil well runs through a plurality of oil reservoirs, for reducing production costs and working strength of workers, engineers and technicians have developed under the situation of not changing down-hole string, just can distinguish the down-hole oil production tubing string of each oil reservoir under the recovery well, as number of patent application is 02135269.0, the applying date is on July 12nd, 2002, name is called the tubing string that discloses the two-layer layering production of a kind of branch in " fixed tubular column layering production down-hole string and implementing process thereof ", this tubing string has solved the problem of fixed tubular column layering production, can realize that motionless down-hole string divides two-layer layering production, but when oil reservoir was three layers, this tubing string was just inapplicable.In order to reduce production costs further, need a kind of motionless down-hole string of development to divide the down-hole string of three layers of layering production.
Summary of the invention
The purpose of this utility model is to overcome the deficiency that layer string technology changed in above oil production by layer, provides fixed tubular column to change three layers of flow string, reduces production costs and working strength of workers.
Technical solution of the present utility model is: fixed tubular column changes three layers of producing well lower tubular column, adopting the tubing string two large divisions by layering tubing string and branch forms, wherein the layering tubing string is made up of layer separating packer and anti-sandpipe, branch is adopted tubing string and is adopted packer by branch, change a layer controller, outer tube, interior pipe, last seal and lower seal are formed, divide adopt packer be installed in the layering tubing string with the upper part, changing layer controller places branch to adopt the following of packer or with the upper part, changing layer controller links to each other with interior pipe with outer tube simultaneously, outer tube and interior pipe are installed with one heart, the lower end of outer tube is between middle lower leaf packer, the lower end of interior pipe is positioned at below the lower leaf packer, annular space between last seal sealed outer pipe and the layering tubing string and between the anti-sandpipe in last stage casing, with the annular space between lower seal sealed inner tube and the layering tubing string and between the anti-sandpipe of middle hypomere, three switches that change on layer controller are communicated respectively with three oil reservoirs.
The utility model compared with prior art has following remarkable result: realized 1 purpose of changing three layers of layer controller controls.Three switches that change on layer controller are communicated with three oil reservoirs respectively, by opening or closing the switch that changes layer controller, realize three layers in arbitrary layer exploitation.The utility model simplicity of design, reliable operation, thus reduce production costs, alleviate working strength of workers.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
Among the figure: sleeve pipe 1, oil pipe 2, down-hole pump 3 divides and adopts packer 4, changes layer controller 5, outer tube 6, interior pipe 7, layer separating packer 8,9,10, switch 11,12,13, anti-sandpipe 14,16,18, last seal 15, lower seal 17.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is done further detailed description: fixed tubular column changes three layers of producing well lower tubular column, adopting the tubing string two large divisions by layering tubing string and branch forms, wherein the layering tubing string is by layer separating packer 8,9,10 and anti-sandpipe 14,16,18 form, layer separating packer 8 places oil reservoir one with the upper part, layer separating packer 9 and 10 places respectively between two oil reservoirs, anti-sandpipe 14,16,18 is continuous and corresponding with each oil reservoir respectively with layer separating packer respectively, branch is adopted tubing string and is adopted packer 4 by branch, change layer controller 5, outer tube 6, interior pipe 7, last seal 15 and lower seal 17 are formed, divide adopt packer 4 be installed in layer separating packer 8 with the upper part, changing layer controller 5 places branch to adopt the following of packer 4 or with the upper part, changing layer controller 5 links to each other with interior pipe 7 with outer tube 6 simultaneously, outer tube 6 and interior pipe 7 are installed with one heart, outer tube 6 lower ends are between layer separating packer 9 and layer separating packer 10, interior pipe 7 lower ends are positioned at layer separating packer below 10, annular space between last seal 15 sealed outer pipes 6 and the layering tubing string and between anti-sandpipe 14 and 16, annular space between lower seal 17 sealed inner tubes 7 and the layering tubing string and between anti-sandpipe 16 and 18, outer tube 6 lower ends are only communicated with oil reservoir two, and pipe 7 lower ends only communicate with oil reservoir three in making.Anti-sandpipe 14,16,18 also can partly or entirely change ported sub into.The top that fixed tubular column changes the down-hole string of three layers of oil recovery is connected with the oil extraction pump tubing string or is not connected with the oil extraction pump tubing string, and the oil extraction pump tubing string is made up of oil pipe 2 and down-hole pump 3.Change layer controller 5 and have three switches, switch 11,12 and 13, switch 11 communicates with the oil jacket annular space, the crude oil of exploitation oil reservoir one; Switch 12 communicates with outer tube 6, the crude oil of exploitation oil reservoir two; Switch 13 communicates with interior pipe 7, the crude oil of exploitation oil reservoir three.
The oil that oil reservoir one is produced passes anti-sandpipe 14, and the annular space that enters between outer tube 6 and the layering tubing string is also up, after switch 11 flows into controllers 5, upwards flows into down-hole pump again, flow to ground.The oil that oil reservoir two is produced passes anti-sandpipe 16, and is up along the annular space between outer tube 6 and the interior pipe 7, after layer controller 5 changed in switch 12 inflows, upwards flows into down-hole pump again, flow to ground again.The oil that oil reservoir three is produced passes anti-sandpipe 18, and is up along interior pipe 7, from switch 13 flow into change layer controller 5 after, upwards flow into down-hole pump again, flow to ground again.
Fixed tubular column changes the dual mode that implements that three layers of producing well lower tubular column change layer, normally used is to control the pressure that changes layer controller 5 to be provided by ground pump truck, apply hydraulic coupling by the oil jacket annular space to changing layer controller 5 with pump, the opening and closing of layer controller 5 oil stream switches are changed in control.Another kind of mode is: when fixed tubular column layering production down-hole string links to each other with the oil extraction pump tubing string on top, changing layer controller 5 can also link to each other with a control pipeline, the control pipeline is strapped in the oil pipe outside, the control pipeline other end links to each other with the ground pressure pump, the pressure that compression pump produces acts on by the control pipeline and changes layer controller 5, controls the state of its switch.
Claims (3)
1, fixed tubular column changes three layers of producing well lower tubular column, adopting the tubing string two large divisions by layering tubing string and branch forms, wherein the layering tubing string is by layer separating packer (8), (9), (10) and anti-sandpipe (14), (16), (18) form, layer separating packer (8) places oil reservoir one with the upper part, layer separating packer (9) and (10) place respectively between two oil reservoirs, anti-sandpipe (14), (16), (18) continuous and corresponding with each oil reservoir respectively with layer separating packer respectively, branch is adopted tubing string and is adopted packer (4) by branch, change a layer controller (5), outer tube (6), interior pipe (7) and last seal (15) are formed, divide adopt packer (4) be installed in layer separating packer (8) with the upper part, changing a layer controller (5) places branch to adopt the following of packer (4) or with the upper part, it is characterized in that, changing a layer controller (5) links to each other with interior pipe (7) with outer tube (6) simultaneously, the lower end of outer tube (6) is positioned between layer separating packer (9) and the layer separating packer (10), the lower end of interior pipe (7) is positioned at below the layer separating packer (10), annular space between last seal (15) sealed outer pipe (6) and the layering tubing string and being positioned between anti-sandpipe (14) and (16), with the annular space between lower seal (17) sealed inner tube (7) and the layering tubing string and be positioned between anti-sandpipe (16) and (18), the lower end of outer tube (6) is only communicated with oil reservoir two, interior pipe (7) lower end is only communicated with oil reservoir three.
2, fixed tubular column according to claim 1 changes three layers of producing well lower tubular column, it is characterized in that the described layer controller (5) that change has three switches, switch (11), (12) and (13), switch (11) communicates with the oil jacket annular space, switch (12) communicates with outer tube (6), switch (13) communicates with interior pipe (7), controls the oil stream of oil reservoir one, oil reservoir two and oil reservoir three respectively.
3, fixed tubular column according to claim 1 changes three layers of producing well lower tubular column, it is characterized in that, described anti-sandpipe (14), (16), (18) also can partly or entirely change ported sub into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320106412 CN2654838Y (en) | 2003-10-17 | 2003-10-17 | Replacing of pipe column under three layer oil extraction without moving pipe column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320106412 CN2654838Y (en) | 2003-10-17 | 2003-10-17 | Replacing of pipe column under three layer oil extraction without moving pipe column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2654838Y true CN2654838Y (en) | 2004-11-10 |
Family
ID=34341665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320106412 Expired - Fee Related CN2654838Y (en) | 2003-10-17 | 2003-10-17 | Replacing of pipe column under three layer oil extraction without moving pipe column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2654838Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022104A (en) * | 2010-11-06 | 2011-04-20 | 大庆油田有限责任公司 | Open-hole packer for open-hole horizontal well and preset connector fracturing well completion method |
| CN102817597A (en) * | 2012-08-31 | 2012-12-12 | 中国石油化工股份有限公司 | Three-layer insertion pipe mechanical water exploration and plugging method and water exploration and plugging pipe column |
| CN101421486B (en) * | 2006-04-03 | 2013-09-18 | 埃克森美孚上游研究公司 | Wellbore method and apparatus for sand and inflow control during well operations |
| CN105089514A (en) * | 2015-05-29 | 2015-11-25 | 中国石油天然气股份有限公司 | Layering perforation and oil testing pipe column and use method thereof |
| CN105422059A (en) * | 2015-12-31 | 2016-03-23 | 程强 | Separate layer oil production device |
-
2003
- 2003-10-17 CN CN 200320106412 patent/CN2654838Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101421486B (en) * | 2006-04-03 | 2013-09-18 | 埃克森美孚上游研究公司 | Wellbore method and apparatus for sand and inflow control during well operations |
| CN102022104A (en) * | 2010-11-06 | 2011-04-20 | 大庆油田有限责任公司 | Open-hole packer for open-hole horizontal well and preset connector fracturing well completion method |
| CN102022104B (en) * | 2010-11-06 | 2013-08-14 | 大庆油田有限责任公司 | Open-hole packer for open-hole horizontal well and preset connector fracturing well completion method |
| CN102817597A (en) * | 2012-08-31 | 2012-12-12 | 中国石油化工股份有限公司 | Three-layer insertion pipe mechanical water exploration and plugging method and water exploration and plugging pipe column |
| CN102817597B (en) * | 2012-08-31 | 2015-04-15 | 中国石油化工股份有限公司 | Three-layer insertion pipe mechanical water exploration and plugging method and water exploration and plugging pipe column |
| CN105089514A (en) * | 2015-05-29 | 2015-11-25 | 中国石油天然气股份有限公司 | Layering perforation and oil testing pipe column and use method thereof |
| CN105422059A (en) * | 2015-12-31 | 2016-03-23 | 程强 | Separate layer oil production device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101435321B (en) | Horizontal well tube exterior subsection gravel filling sand prevention process and pipe column | |
| CN102041983A (en) | Sand control screen assembly with flow control capability | |
| CN1294337C (en) | Layered pipe column for squeeze packing sand control process | |
| CN203685147U (en) | Offshore separate-layer sand control, separate-layer oil production and separate-layer testing integrated pipe column | |
| CN201705276U (en) | Well completion and flow string of horizontal well | |
| CN106640026A (en) | Pressure control type intelligent production pipe column capable of injecting acid by layer selection and production method | |
| CN103089204B (en) | Double-coal-bed layered pressure control device combining coal discharging and coal mining | |
| CN105649578A (en) | Vertical-well double-layer partial-pressure commingling method and device for coalbed methane | |
| CA2489674A1 (en) | Ported velocity tube for gas lift operations | |
| CN2654838Y (en) | Replacing of pipe column under three layer oil extraction without moving pipe column | |
| CN101906954A (en) | Layering sand-control layering oil production integrated pipe column | |
| CN103161432A (en) | Lifting type layered oil production tubular column | |
| CN206111126U (en) | Close inserting of independent liquid accuse sliding sleeve formula | |
| CN201087714Y (en) | Double-oil tube well mouth device | |
| CN204492776U (en) | A kind of on-line control separate zone production flow string | |
| CN202645512U (en) | Lift-type separate layer production string | |
| CN212508228U (en) | Compact gravel packing tool for sand prevention | |
| CN1456785A (en) | Selective multi-stage inner pipe cementing process and cemented tubular column there from | |
| CN2720104Y (en) | Fully-closed hydraulic packer | |
| CN2760223Y (en) | Sand prevention pipe with layered squeeze pack | |
| CN210598927U (en) | Special downhole hydraulic motor for oil production | |
| CN108691511B (en) | Packing upper-layer and lower-layer integrated sand prevention pipe column and method | |
| CN1389639A (en) | Immobile well cylinder pile for stratum-shifting oil exploitation and its implementation | |
| CN2813888Y (en) | Sand control well sectional oil producing pipe column | |
| CN2489114Y (en) | Oil pipe pumping type well pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |