CN202832438U - Long-acting layered water injection string for deep well - Google Patents
Long-acting layered water injection string for deep well Download PDFInfo
- Publication number
- CN202832438U CN202832438U CN 201220420604 CN201220420604U CN202832438U CN 202832438 U CN202832438 U CN 202832438U CN 201220420604 CN201220420604 CN 201220420604 CN 201220420604 U CN201220420604 U CN 201220420604U CN 202832438 U CN202832438 U CN 202832438U
- Authority
- CN
- China
- Prior art keywords
- packer
- oil pipe
- water injection
- pipe
- well
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 43
- 238000002347 injection Methods 0.000 title claims abstract description 35
- 239000007924 injection Substances 0.000 title claims abstract description 35
- 229910052755 nonmetal Inorganic materials 0.000 claims abstract description 11
- 210000002445 nipple Anatomy 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 abstract 1
- 238000005553 drilling Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 230000007774 longterm Effects 0.000 abstract 1
- 238000011112 process operation Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 10
- 238000011010 flushing procedure Methods 0.000 description 6
- 238000012856 packing Methods 0.000 description 4
- 241000935974 Paralichthys dentatus Species 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 241000283986 Lepus Species 0.000 description 1
- 241000242541 Trematoda Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000005987 sulfurization reaction Methods 0.000 description 1
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model discloses a long-term layering water injection tubular column of deep well is for extension tubular column working life, improve deep well layering water injection technology level and design, and the well head is connected to this tubular column top oil pipe upper end, and the lower extreme connects gradually nonmetal hydraulic anchor, sleeve pipe protection packer, be separated by the eccentric water injection mandrel of the bridge type at different levels and the low deblocking power packer of Y344 of connection, preset the working barrel, two effect valves, screen pipe and plug. The non-metal hydraulic anchor of the water injection pipe column is in non-rigid contact with the inner wall of the casing pipe, so that the inner wall of the casing pipe cannot be damaged, and the service life of the casing pipe can be effectively prolonged; the Y344 low-deblocking-force packer needs oil sleeve annular pressurization deblocking, can solve the problems of multi-stage well washing, large risk of later-stage drilling tripping and the like, has low setting pressure, can meet the requirement of setting with a water nozzle, and reduces the procedures of dropping and fishing dead water nozzles; the pipe column can be plugged by a small-diameter blanking plug before string detection operation by adopting a preset working barrel, so that the whole process operation under pressure is realized; the double-acting valve can realize the requirement of plugging a pipe column during well completion operation so as to set a packer.
Description
Technical field
The utility model relates to the long-acting separate layer water injection string of a kind of deep-well, belongs to the oil-field flooding technical field.
Background technology
Along with the progress of exploration and development technical level, multilayer is that the potentiality to be exploited of deep reservoir progressively enlarges, and deep-well also increases gradually.In order to improve the development effectiveness of oil reservoir integral body, meticulous division substratum on the geology, meticulous seperated layer water injection on the technique.Deep-well for multistage water injection, when adopting conventional separate layer water injection string water filling, water injection pressure and interlayer pressure difference improve gradually, the water filling operating mode is tending towards variation and complicated, the problem such as the safety of tubing string and packer wriggling inefficacys is become increasingly conspicuous, cause the adverse consequences such as the shortening of tubing string Acceptable life and water injection well operation be frequent.Simultaneously, when adopting Y241 and Y341 packer to carry out multistage water injection, deblocking will be carried tubing string on the whole, and the deblocking of packers at different levels is loaded to be acted on the tubing string simultaneously, causes deblocking stack load excessive, increases operating risk.In addition, during deep-well multistage water injection well-flushing, the chock pressure difference when injected water passes through a plurality of packers and injection well downhole flow regulator is excessive, makes well-flushing pressure surpass equipment rated capacity, normally well-flushing.
Summary of the invention
The purpose of this utility model is to provide a kind of deep-well long-acting separate layer water injection string, and it can prevent the wriggling of tubing string in the injecting process, prolongs the tubing string working life, improves deep-well stratified injection water technology level.
Concrete technical scheme of the present utility model is as follows:
This oil pipe upper end, tubing string top connects well head; the lower end connects nonmetal water power anchor; the nonmetal water power anchor lower end is by oil pipe splicing sleeve protecting packer; the casing protective packer lower end is separated by by oil pipe and connects bridge type eccentric injection mandrels at different levels and the low deblocking power packer of Y344; the bridge type eccentric injection mandrel lower end of final stage connects by oil pipe presets seating nipple; preset the seating nipple lower end and connect the double acting valve by oil pipe; double acting valve lower end connects screen casing by oil pipe, and the screen casing lower end connects plug by oil pipe.
The nonmetal water power anchor of this water injection string adopts non-rigidity to contact with internal surface of sleeve pipe, can not produce damage to internal surface of sleeve pipe, can effectively prolong the application life of sleeve pipe, simultaneously, anchor fluke is set with the tension limit, when the down-hole occurs can pulling off anchor fluke by the limit tonnage when unusual, reduce the generation of the accidents such as Ka Jing; Y344 is low, and deblocking power packer needs oil jacket applied pressure by annulus deblocking, can solve multistage well-flushing, the later stage difficult problem such as have a big risk that pulls out of hole, and it is low to set pressure, can satisfy to be with water nozzle to set, minimizing pulling stagnant water mouth operation; Seating nipple is preset in employing can drop into the small diameter plug plugging tubing string before the operation of inspection string, realize omnidistance Operating Pressure; Tubing string adopts the double acting valve, and plugging tubing string in the time of realizing completion practice is to satisfy the needs of packer setting.
Description of drawings
Fig. 1 is the long-acting separate layer water injection string structural representation of deep-well.
The specific embodiment
With reference to Fig. 1 embodiment of the present utility model is further specified:
Embodiment:
This oil pipe 1 upper end, tubing string top connects well head; the lower end is threaded and adopts the nonmetal water power anchor 2 of the whole sulfuration of rubber anchor fluke fuse; nonmetal water power anchor 2 lower ends are by oil pipe 1 screw joint casing protecting packer 3; casing protective packer 3 lower ends are separated by by oil pipe 1 screw thread and connect bridge type eccentric injection mandrels 4 at different levels and the low deblocking power packer 5 of Y344; bridge type eccentric injection mandrel 4 lower ends of final stage are threaded by oil pipe 1 and preset seating nipple 6; preset seating nipple 6 lower ends by the oil pipe 1 double acting valve 7 that is threaded; double acting valve 7 lower ends are by oil pipe 1 screen casing 8 that is threaded, and screen casing 8 lower ends are by oil pipe 1 plug 9 that is threaded.
The course of work of the long-acting separate layer water injection string of deep-well is as follows:
Be lowered to zone separate injection technical string: adopt the jack rabbit drifting; use the active water well-flushing; then from bottom to top with plug 9, screen casing 8, double acting valve 7, preset seating nipple 6, bridge type eccentric injection mandrel at different levels 4 and hang down deblocking power packer 5, casing protective packer 3, nonmetal water power anchor 2 and oil pipe 1 with its Y344 at different levels of being connected of being separated by and adopt successively and be threaded the casting and dragging free adjustable stopper of all packing into before bridge type eccentric injection mandrel 4 connections.With under the long-acting separate layer water injection string of the deep-well that connects to the precalculated position, adopt magnetic orientation that the packer location is calibrated.
Tubing string sets: apply hydraulic pressure in oil pipe 1, nonmetal water power anchor 2 anchor flukes are stretched out sit card, make the low deblocking power packing element of casing protective packer 3 and Y344 at different levels be compressed and set.Set finish after, each water filling layer position is opened by effective packing, can carry out seperated layer water injection.
Water filling: cable carries downhole measurement adjusting instrument, regulates the casting and dragging free adjustable stopper, until water injection rate identical with the injection allocation scheme till, injected water enters the stratum from bridge type eccentric injection mandrels 4 outflows at different levels.
Tubing string deblocking and well-flushing: the oil jacket annular space is beaten hydraulic pressure, and when oil jacket pressure reduction reached removing seal for packer pressure, Y344 hanged down the 5 packing element release of pressure resiliences of deblocking power packer, and removing seal for packer can be finished clean-out service under the deblocking state.
Claims (1)
1. long-acting separate layer water injection string of deep-well is characterized in that:
This tubing string top oil pipe (1) upper end connects well head; the lower end connects nonmetal water power anchor (2); nonmetal water power anchor (2) lower end is by oil pipe (1) splicing sleeve protecting packer (3); casing protective packer (3) lower end is separated by by oil pipe (1) and connects bridge type eccentric injection mandrels at different levels (4) and the low deblocking power packer (5) of Y344; the bridge type eccentric injection mandrel of final stage (4) lower end connects by oil pipe (1) presets seating nipple (6); preset seating nipple (6) lower end and connect double acting valve (7) by oil pipe (1); double acting valve (7) lower end connects screen casing (8) by oil pipe (1), and screen casing (8) lower end connects plug (9) by oil pipe (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220420604 CN202832438U (en) | 2012-08-23 | 2012-08-23 | Long-acting layered water injection string for deep well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220420604 CN202832438U (en) | 2012-08-23 | 2012-08-23 | Long-acting layered water injection string for deep well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202832438U true CN202832438U (en) | 2013-03-27 |
Family
ID=47944170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220420604 Expired - Fee Related CN202832438U (en) | 2012-08-23 | 2012-08-23 | Long-acting layered water injection string for deep well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202832438U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653157A (en) * | 2013-11-19 | 2015-05-27 | 中国石油天然气股份有限公司 | Multi-stage separate-layer water injection string and working method thereof |
| CN105781506A (en) * | 2014-12-19 | 2016-07-20 | 中国石油天然气股份有限公司 | Separate-zone water injection method for oil well |
| CN106812506A (en) * | 2015-11-30 | 2017-06-09 | 中国石油天然气股份有限公司 | Separate-layer water injection string and using method |
| CN108547603A (en) * | 2018-02-28 | 2018-09-18 | 中国石油天然气股份有限公司 | Water injection and oil extraction integrated tubular column and water injection and oil extraction method |
| CN110500071A (en) * | 2019-08-29 | 2019-11-26 | 中国石油天然气股份有限公司 | Intelligent alternate water injection device for cables arranged in continuous non-metal pipes and water injection method thereof |
| CN114961676A (en) * | 2022-06-14 | 2022-08-30 | 东方宝麟科技发展(北京)有限公司 | Separate-layer water injection allocation method for cable preset in pipe and separate-layer water injection pipe column structure |
-
2012
- 2012-08-23 CN CN 201220420604 patent/CN202832438U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653157A (en) * | 2013-11-19 | 2015-05-27 | 中国石油天然气股份有限公司 | Multi-stage separate-layer water injection string and working method thereof |
| CN104653157B (en) * | 2013-11-19 | 2018-03-09 | 中国石油天然气股份有限公司 | Multi-stage separate-layer water injection string and working method thereof |
| CN105781506A (en) * | 2014-12-19 | 2016-07-20 | 中国石油天然气股份有限公司 | Separate-zone water injection method for oil well |
| CN105781506B (en) * | 2014-12-19 | 2018-08-10 | 中国石油天然气股份有限公司 | Separate-zone water injection method for oil well |
| CN106812506A (en) * | 2015-11-30 | 2017-06-09 | 中国石油天然气股份有限公司 | Separate-layer water injection string and using method |
| CN108547603A (en) * | 2018-02-28 | 2018-09-18 | 中国石油天然气股份有限公司 | Water injection and oil extraction integrated tubular column and water injection and oil extraction method |
| CN110500071A (en) * | 2019-08-29 | 2019-11-26 | 中国石油天然气股份有限公司 | Intelligent alternate water injection device for cables arranged in continuous non-metal pipes and water injection method thereof |
| CN114961676A (en) * | 2022-06-14 | 2022-08-30 | 东方宝麟科技发展(北京)有限公司 | Separate-layer water injection allocation method for cable preset in pipe and separate-layer water injection pipe column structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202832438U (en) | Long-acting layered water injection string for deep well | |
| CN204703876U (en) | Bridge type concentric separate injection pipe column | |
| CN104213861B (en) | A kind of expansion tube expanding process and tool system | |
| CN108019178B (en) | Construction method for plugging production pipe column under pressure in pipe | |
| CN103643931A (en) | Completion and fracture integrated pipe column of offshore openhole horizontal well and construction method of pipe column | |
| CN101775977B (en) | Dual-tube injection well safety production string | |
| CN104790903A (en) | Spanning type packer capable of achieving repeated setting | |
| CN109138904B (en) | Double-packer layered grouting water stop device and use method thereof | |
| CN203961938U (en) | Packer staged fracturing technology tube pillar in a kind of horizontal well tube | |
| CN203394437U (en) | Automatic pressure relief and pressure test valve of underground pipe column of oil-water well | |
| CN203626759U (en) | Production pipe column with electric submersible pump and jet pump jointly lifted | |
| CN208830969U (en) | Oil extraction and water injection string | |
| CN203214025U (en) | Layered oil extraction pipe string | |
| CN103485754A (en) | Integrated underground hydraulic control fully-opened type sliding sleeve abrasive blasting and packing staged fracturing device | |
| CN110735618A (en) | Oil extraction and water injection string | |
| CN201092845Y (en) | Hydraulic pressure, double back-off hand type dragable bridge plug | |
| CN201265389Y (en) | Lower-pressure deblocking type bridge plug and deblocking suspension | |
| CN208137921U (en) | A kind of packing element anchoring separate layer water injection string | |
| CN114396243B (en) | Gas drilling high-pressure gas well completion method | |
| CN201915925U (en) | Anti-creep separate-layer water injection string for directional well and deep well | |
| CN112324384B (en) | Non-well killing operation process method applying pressure control switch valve | |
| CN203114261U (en) | Supporting type high-pressure layering water injection tubular column | |
| CN201106435Y (en) | Sliding sleeve type packer for horizontal well separate layer fracturing | |
| CN204457689U (en) | Safe water injection string capable of releasing stuck step by step | |
| CN112709556B (en) | Rapid well completion pipe string for offshore oilfield water injection well and construction method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20210823 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |