CN204419141U - A kind of selective sand control is surveyed and is adjusted one separate layer water injection string - Google Patents
A kind of selective sand control is surveyed and is adjusted one separate layer water injection string Download PDFInfo
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- CN204419141U CN204419141U CN201520005810.6U CN201520005810U CN204419141U CN 204419141 U CN204419141 U CN 204419141U CN 201520005810 U CN201520005810 U CN 201520005810U CN 204419141 U CN204419141 U CN 204419141U
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Abstract
The utility model discloses a kind of selective sand control and survey tune one separate layer water injection string, comprise water injection string, be installed on liquid controling pipe line, tubing safety valve, annular space safe containment device on water injection string successively, and the laterally opened ball-and-seat be installed on bottom water injection string and plug, it is characterized in that described water injection string also comprising one or more layers selective sand control unit, every layer of sand control unit comprises zone isolation packer, water injection packer, sand control screen and water distribution seating nipple successively.The utility model has the advantages that by selective sand control function, solve the problem of waterflood path blocking and whole process pipe string sand card, extend the water injection string life-span, reduce maintenance cost; By full well anti-flushing well function, solve the problem that the full well section well-flushing that causes due to sand card, fouling is obstructed, improve the application life of separate water injection well, reduce water injection well operating cost.
Description
Technical field
The utility model relates to a kind of flushing tubing string, and particularly a kind of washing well selective sand control is surveyed and adjusted one separate layer water injection string, belongs to oil extraction in oil field engineering field.
Background technology
The middle and later periods of oilfield exploitation, water filling be retentively stressor layer, realize oilfield stable production volume increase and improve a kind of effective exploitation mode of oil recovery rate.At present, many water injection well interlayer contradiction are given prominence to, and need to adopt separate zone waterflooding technology.Along with the progress of technology, survey and adjust one separate zone waterflooding technology to become current main flow water injection technology.But when loose sand oil accumulation applies this technology; due to oil reservoir, to tell sand serious; usually can cause to survey and adjust the blocking of one injection well downhole flow regulator waterflood path and whole process pipe string sand card, cause that the water injection string life-span is short, maintenance cost is high, need employing selective sand control technology to solve the problem.
In addition, adjust one instrument to transfer smoothly for making survey and put in place, water injection string needs regular anti-flushing well.Conventional batch water injection packer is due to design reasons, and well-flushing flow channels is little, returns and tells sand and surface scale affects seriously, can not realize full well section anti-flushing well by stratum.
Summary of the invention
For the problems referred to above, the utility model object be to provide a kind of can full well section anti-flushing well, selective sand control survey adjust one separate layer water injection string, the water injection string life-span can be extended, reduce maintenance cost, improve the application life of separate water injection well, reduce water injection well operating cost.
Selective sand control technology and water filling well surveying adjust one separate zone waterflooding technology to combine by the utility model, the problem such as well solve tubing string sand card that layered water injection pipe major gene loose sand sand production in oil causes, not in place, injection well downhole flow regulator blocking transferred by measurement and adjustment instrument device.Meanwhile, the annular space safe containment device that the utility model provides can effectively prevent sleeve tube pressure liquid from altering to well head, and major path hydraulic control well-flushing sliding sleeve, in conjunction with inflatable packer, can solve the problem that the full well section well-flushing that causes due to sand card, fouling is obstructed.
The concrete technical scheme of the utility model is: a kind of sand control layering is surveyed and adjusted one separate layer water injection string, comprise water injection string, be installed on liquid controling pipe line, tubing safety valve, annular space safe containment device on water injection string successively, and the laterally opened ball-and-seat be installed on bottom water injection string and plug, it is characterized in that described water injection string also comprising one or more layers selective sand control unit, every layer of sand control unit comprises zone isolation packer, water injection packer, sand control screen and water distribution seating nipple successively.
The structure of described sand control screen comprises inner base tube, the porous filtering layer of centre and the protective sleeve of outside.
Described selective sand control is surveyed and is adjusted one separate layer water injection string, and characterized by further comprising the hydraulic control well-flushing sliding sleeve be installed on water injection string, described hydraulic control well-flushing sliding sleeve is between tubing safety valve and annular space safe containment device.
Described selective sand control is surveyed and is adjusted one separate layer water injection string, it is characterized in that the separation number of plies of whole water injection string is not limit.
Described selective sand control is surveyed and is adjusted one separate layer water injection string, it is characterized in that water distribution seating nipple weep hole is adjustable structure, and is provided with anti-returning and tells structure.
Described selective sand control is surveyed and is adjusted one separate layer water injection string, and its feature is double pipe structure at be set forth in annular space safe containment device, and on the left of upper end, tubing thread connects hydraulic control well-flushing sliding sleeve.
Described selective sand control is surveyed and is adjusted one separate layer water injection string, its feature at described hydraulic control well-flushing sliding sleeve for major path designs.
The utility model has the advantages that by selective sand control function, solve the problem of waterflood path blocking and whole process pipe string sand card, extend the water injection string life-span, reduce maintenance cost; By full well anti-flushing well function, solve the problem that the full well section well-flushing that causes due to sand card, fouling is obstructed, improve the application life of separate water injection well, reduce water injection well operating cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of sand control screen in the utility model.
In figure, 1-liquid controling pipe line, 2-oil security valve, 3-hydraulic control well-flushing sliding sleeve, 4-annular space safe containment device, 5-top hanging packer, 6-higher slice water injection packer, 7-upper strata sand control screen, 8-upper water distribution seating nipple, 9-middle level zone isolation packer, 10-middle layered waterflooding packer, 11-middle water distribution seating nipple, 12-middle level sand control screen, 13-lower floor zone isolation packer, 14-lower leaf water injection packer, 15-lower water distribution seating nipple, 16-lower floor sand control screen, 17-laterally opened ball-and-seat, 18-plug; 701-protective sleeve, 702-porous filtering layer, 703-base tube.
Detailed description of the invention
Below in conjunction with accompanying drawing, also by specific embodiment, the utility model is described in further detail.
The present embodiment illustrates its structure for three layers of sand prevention water injection unit.As shown in Figure 1, it comprises liquid controling pipe line 1, tubing safety valve 2, hydraulic control well-flushing sliding sleeve 3, annular space safe containment device 4, top hanging packer 5, higher slice water injection packer 6, upper strata sand control screen 7, upper water distribution seating nipple 8, middle level zone isolation packer 9, middle layered waterflooding packer 10, middle water distribution seating nipple 11, middle level sand control screen 12, lower floor's zone isolation packer 13, lower leaf water injection packer 14, lower water distribution seating nipple 15, lower floor's sand control screen 16 and laterally opened flushing valve 17; Sand-proof pipe is installed in turn and is connected with top hanging packer 5, upper strata sand control screen 7, middle level zone isolation packer 9, middle level sand control screen 12, lower floor's zone isolation packer 13, lower floor's sand control screen 16; Water injection string is installed in turn the plug 18 for sealing be connected with bottom tubing safety valve 2, annular space safe containment device 4, hydraulic control well-flushing sliding sleeve 3, higher slice water injection packer 6, upper water distribution seating nipple 8, middle layered waterflooding packer 9, middle water distribution seating nipple 11, lower leaf water injection packer 14, lower water distribution seating nipple 15 and laterally opened ball-and-seat 17 and water injection string.
The Main Function of anti-sand control screen 7 invades water injection string for preventing reservoir sand, causes water injection string cannot normally water filling and cannot overhaul the problem of tubing string; Wherein 701-protective sleeve, for the protection of internal porous filtration beds 702,702-porous filtering layer, mainly plays sand control effect, 703-base tube, act as stay pipe.
After sand control pipe is transferred and is put in place, suppressed by pipeline and set top packer 5, top packer 5 is setting complete after, setting service tube-column and sand control pipe are given up, puies forward setting service tube-column on after giving up to assigned address, suppress setting lower floor zone isolation packer 13, continuation is put forward setting service tube-column, setting middle level zone isolation packer 9, setting complete after, setting service tube-column is proposed.
By suppressing to water injection string, setting layering upper, middle and lower water injection packer 6,10,14, realizes down-hole zonal isolation, seperated layer water injection is realized by upper, middle and lower water distribution seating nipple, when needs regulate oil-bearing stratum flooding, under enter special measurement and adjustment instrument device, to water distribution seating nipple carry out survey adjust.
By suppressing setting annular space safe containment device 4 to water injection string, realize sleeve pipe to separate, prevent from sleeve pipe inner high voltage liquid is altered.When needs well-flushing, suppress to liquid controling pipe line, opened by hydraulic control well-flushing sliding sleeve 3, liquid enters from hydraulic control well-flushing sliding sleeve 3 side, enters water injection string and sand control pipe annular space by annular space safe containment device 4, realizes huge discharge anti-flushing well technique.
Above-described embodiment only for technical conceive of the present utility model and feature are described, can not limit protection domain of the present utility model with this.All equivalent transformations of doing according to the utility model Spirit Essence or modification, all should be encompassed in protection domain of the present utility model.
Claims (4)
1. a selective sand control is surveyed and is adjusted one separate layer water injection string, comprise water injection string, be installed on liquid controling pipe line, tubing safety valve, annular space safe containment device on water injection string successively, and the laterally opened ball-and-seat be installed on bottom water injection string and plug, it is characterized in that described water injection string also comprising one or more layers selective sand control unit, every layer of sand control unit comprises zone isolation packer, water injection packer, sand control screen and water distribution seating nipple successively.
2. selective sand control is surveyed and is adjusted one separate layer water injection string according to claim 1, and it is characterized in that it also comprises the hydraulic control well-flushing sliding sleeve be installed on water injection string, described hydraulic control well-flushing sliding sleeve is between tubing safety valve and annular space safe containment device.
3. selective sand control is surveyed and is adjusted one separate layer water injection string according to claim 1, it is characterized in that the structure of described sand control screen comprises inner base tube, the porous filtering layer of centre and the protective sleeve of outside.
4. selective sand control is surveyed and is adjusted one separate layer water injection string according to claim 1, it is characterized in that water distribution seating nipple weep hole is adjustable structure, and is provided with anti-returning and tells structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520005810.6U CN204419141U (en) | 2015-01-06 | 2015-01-06 | A kind of selective sand control is surveyed and is adjusted one separate layer water injection string |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520005810.6U CN204419141U (en) | 2015-01-06 | 2015-01-06 | A kind of selective sand control is surveyed and is adjusted one separate layer water injection string |
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| CN204419141U true CN204419141U (en) | 2015-06-24 |
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| CN201520005810.6U Active CN204419141U (en) | 2015-01-06 | 2015-01-06 | A kind of selective sand control is surveyed and is adjusted one separate layer water injection string |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105507861A (en) * | 2016-01-06 | 2016-04-20 | 李永立 | Tubular column for separated layer water injection |
| CN106437641A (en) * | 2015-08-11 | 2017-02-22 | 中国石油化工股份有限公司 | Independent safe long-acting double-pipe water injection pipe column |
| 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 |
| CN109184629A (en) * | 2018-08-30 | 2019-01-11 | 中国海洋石油集团有限公司 | A kind of selective sand control seperated layer water injection integral tubular column and its tripping in method |
| CN109681159A (en) * | 2017-10-17 | 2019-04-26 | 中国石油化工股份有限公司 | A kind of oil field multitube separate layer water injection string |
| CN111502609A (en) * | 2020-04-21 | 2020-08-07 | 中国海洋石油集团有限公司 | Water injection sand prevention pipe column capable of cleaning annular space of screen sleeve and well cleaning method |
| CN113027392A (en) * | 2021-04-30 | 2021-06-25 | 天津凯雷油田技术有限公司 | A throw and drag for survey and regulate integrative sand control water injection tubular column for pit shaft |
| CN113187453A (en) * | 2021-07-01 | 2021-07-30 | 东营市瑞丰石油技术发展有限责任公司 | Washable well sand-prevention water injection process pipe column and implementation method thereof |
| CN113669036A (en) * | 2020-05-13 | 2021-11-19 | 中国海洋石油集团有限公司 | Hydraulic control layered oil production system |
-
2015
- 2015-01-06 CN CN201520005810.6U patent/CN204419141U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106437641A (en) * | 2015-08-11 | 2017-02-22 | 中国石油化工股份有限公司 | Independent safe long-acting double-pipe water injection pipe column |
| CN106437641B (en) * | 2015-08-11 | 2018-12-04 | 中国石油化工股份有限公司 | The long-acting two-tube water injection string of independent safety |
| CN105507861A (en) * | 2016-01-06 | 2016-04-20 | 李永立 | Tubular column for separated layer water injection |
| CN109681159A (en) * | 2017-10-17 | 2019-04-26 | 中国石油化工股份有限公司 | A kind of oil field multitube separate layer water injection string |
| CN109681159B (en) * | 2017-10-17 | 2021-02-02 | 中国石油化工股份有限公司 | Oil field multitube layering water injection string |
| 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 |
| CN109184629A (en) * | 2018-08-30 | 2019-01-11 | 中国海洋石油集团有限公司 | A kind of selective sand control seperated layer water injection integral tubular column and its tripping in method |
| CN111502609A (en) * | 2020-04-21 | 2020-08-07 | 中国海洋石油集团有限公司 | Water injection sand prevention pipe column capable of cleaning annular space of screen sleeve and well cleaning method |
| CN113669036A (en) * | 2020-05-13 | 2021-11-19 | 中国海洋石油集团有限公司 | Hydraulic control layered oil production system |
| CN113027392A (en) * | 2021-04-30 | 2021-06-25 | 天津凯雷油田技术有限公司 | A throw and drag for survey and regulate integrative sand control water injection tubular column for pit shaft |
| CN113187453A (en) * | 2021-07-01 | 2021-07-30 | 东营市瑞丰石油技术发展有限责任公司 | Washable well sand-prevention water injection process pipe column and implementation method thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Kong Lisheng Inventor after: He Yong Inventor after: Yang Zeying Inventor before: Kong Lisheng Inventor before: He Yong Inventor before: He Zhonghua Inventor before: Shi Minghua Inventor before: Yang Zeying |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191107 Address after: No.5, Juzhou Road, Dongying District, Dongying City, Shandong Province Co-patentee after: Qingdao Ruixin Petroleum Equipment Manufacturing Co., Ltd. Patentee after: Dongying Ruifeng Petroleum Development Co., Ltd. Address before: 266232, Shandong Province, Qingdao City, Jimo Province Blue Town Happy Road East first South Patentee before: Qingdao Ruixin Petroleum Equipment Manufacturing Co., Ltd. |