CN105298456A - Eccentric water distributor - Google Patents
Eccentric water distributor Download PDFInfo
- Publication number
- CN105298456A CN105298456A CN201510894074.9A CN201510894074A CN105298456A CN 105298456 A CN105298456 A CN 105298456A CN 201510894074 A CN201510894074 A CN 201510894074A CN 105298456 A CN105298456 A CN 105298456A
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- eccentric
- main body
- electric controller
- flow
- seating nipple
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Abstract
The invention relates to an eccentric water distributor. The eccentric water distributor comprises an upper connector, an upper connecting sleeve, a working barrel body, a lower connecting sleeve and a lower connector which are in threaded connection in sequence from top to bottom, and the threaded connection parts between the adjacent parts are each provided with a sealing washer; the center lines of the upper connector, the upper connecting sleeve, the working barrel body, the lower connecting sleeve and the lower connector are overlapped, the threaded connecting end of the upper connector, the working barrel body and the threaded connecting end of the lower connector are each provided with an axial eccentric water injection channel, the axial eccentric water injection channels are communicated with one another, an electrically controlled flow measurement and control mechanism distributed in the axial direction is arranged on the side, located on the working barrel body, of the eccentric water injection channel, the electrically controlled flow measurement and control mechanism comprises flow monitors, a flow adjusting device, a power supply device and an electric controller, the flow monitors, the flow adjusting device and the electric controller are all electrically connected with the power supply device, and the flow monitors and the flow adjusting device are all electrically connected with the electric controller.
Description
Technical field
The present invention relates to downhole tool used in field of oil field oil extraction, specifically a kind of the and matching used eccentric injection mandrel of packer.
Background technology
Oil field enters secondary phase of oil production, all adopts waterflooding extraction to improve oil recovery factor.Because the non-homogeneity of each series of strata of oil reservoir and each interlayer exist pressure, permeability difference, seperated layer water injection mode is only taked could effectively to improve water-injection efficiency and oil recovery rate.Injection well downhole flow regulator utilizes Throttle Principle to regulate interlayer contradiction exactly, and realizing the effect of each layer water distribution, is the key equipment in separate layer water injection string.At present, along with updating of injection well testing technique, most of instrument achieves the mode of hanging survey in oil pipe, the part-structure that old underground water distribution device has does not re-use, and current used eccentric injection mandrel, due to by structure influence, just can control water filling by the ceramic water nozzle formation in blanking plug, and under normal water filling situation can not be realized, pressure recording after sharp-tongued, cannot carry out well test analysis, just can not obtain the formation parameter required for the dynamic analysis of geology department.Along with the development of storing electronic instrument, the eccentric injection mandrel of current this structure cannot meet the needs of admission geologic information, also cannot to using the eccentric anti-judgement returning the water injection well packer sealing condition telling process pipe string.In view of the technical problem existed in prior art, therefore, a kind of new eccentric injection mandrel of exigence solves the problems of the technologies described above.
Summary of the invention
The object of the invention is to overcome existing eccentric injection mandrel and can not reflect that laminated distributor under well water filling real conditions affects again the defect of the waterflood recovery factor in oil field and proposes a kind of eccentric injection mandrel, this kind of injection well downhole flow regulator overall construction design is ingenious, easy to operate, reliable operation, versatility is good.
To achieve these goals, the technical solution used in the present invention is, a kind of eccentric injection mandrel, comprise be threaded successively from top to bottom top connection, upper joint sleeve, seating nipple main body, lower joint sleeve and lower contact, the connection of thread between adjacent component is equipped with seal washer, described top connection, upper joint sleeve, seating nipple main body, the center line of lower joint sleeve and lower contact coincides, at the threaded ends of described top connection, in seating nipple main body and the threaded ends of lower contact all offer the eccentric water injection passage of the axis be connected, and be provided with axial electric-controlled type flow measuring and controlling mechanism in the side being positioned at the eccentric water injection passage in seating nipple main body, described electric-controlled type flow measuring and controlling mechanism comprises flow monitoring meter, flow regulator, electric supply installation and electric controller, described flow monitoring meter, flow regulator and electric controller are all electrically connected with electric supply installation, and flow monitoring meter and flow regulator are all electrically connected with electric controller.
As a modification of the present invention, the bottom that described flow monitoring meter is arranged on seating nipple main body is connected with eccentric water injection passage and locates, described flow regulator comprises one-way throttle valve, shaft coupling and DC micromotor, described one-way throttle valve is set in the centre bore of ceramic water nozzle, the spool of one-way throttle valve is connected the power output shaft of DC micromotor successively with shaft coupling by reducing gear, described DC micromotor is arranged on the top of seating nipple main body, DC micromotor is electrically connected with electric controller, described electric controller is arranged in the mounting groove of upper joint sleeve inside, described electric supply installation is arranged in the mounting groove of lower joint sleeve inside.
As a modification of the present invention; differential pressure pickup is provided with in described flow monitoring meter; and be connected with bellows at the arrival end of flow monitoring meter; for thus protection differential pressure pickup avoid being subject to instantaneous pressure Ground shock waves; and guarantee the accuracy of monitoring, so also make flow monitoring meter to work steadily in the long term.
As a modification of the present invention, the water inlet of described ceramic water nozzle is arranged on the sidewall of seating nipple main body, and water inlet is arranged with filtration net cover, filtration net cover is covered with the through hole of small diameter, for filtering the fouling particle in mine water, thus prevent ceramic water nozzle blockage phenomenon.
As a modification of the present invention, described electric supply installation comprises button cell and battery tray, both positive and negative polarity terminals are respectively equipped with at the upper and lower side of battery tray, described flow monitoring meter, DC micromotor are all connected both positive and negative polarity terminals by wire with electric controller, and be provided with removable top on the top of the mounting groove of electric supply installation, be convenient to later stage replacing battery, wire wherein passes from the through hole be arranged on top cover.
During use, this eccentric injection mandrel is connected on water injection string, and tubing string is put into water injection well by construction requirement, after completing work pressure test, oil pipe pressurization is made packer set, handheld communication devices supporting is with it adopted to launch water distribution parameter to electric controller by ZigBee wireless network on the ground, electric controller enters automatic control water distribution pattern after completing relevant parameter Initialize installation, transfer the water distribution parameter that records in electric controller in handheld communication devices by ZigBee wireless network after end-of-job, and parameter list list is derived or is printed the most at last.
Relative to prior art, overall construction design of the present invention is ingenious, disassembly and assembly convenient maintenance and replacement, simple and reliable for structure, easy to use, can realize automatically testing envelope, automatic regulating water flow, automatic monitoring injection flow, achieve the digital intelligent water distribution operation of eccentric injection mandrel; Without the need to re-using dispensing well steel wire or communication cable test allotment construction when using this eccentric injection mandrel, without the need to pulling operation repeatedly, save a large amount of man power and material, the launch-work success rate of injection well downhole flow regulator is promoted to more than 95%, substantially increase test and the efficiency noting water distribution; Automatic governing or the monitoring accuracy of electric-controlled type flow measuring and controlling mechanism are higher, and admission real-time property is high, and when testing, water injection well is without the need to stopping note, for the meticulous winning management of downhole petroleum provides important means.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1-top connection, 2-upper joint sleeve, 3-seating nipple main body, 4-lower joint sleeve, 5-lower contact, 6-eccentric water injection passage, 7-reducing gear, 8-flow monitoring meter, 9-electric supply installation, 10-electric controller, 11-one-way throttle valve, 12-shaft coupling, 13-DC micromotor, 14-ceramic water nozzle, 15-bellows, 16-filtration net cover, 17-top cover.
Detailed description of the invention
In order to deepen the understanding of the present invention and understanding, below in conjunction with accompanying drawing, the invention will be further described and introduce.
As shown in Figure 1, be a kind of eccentric injection mandrel, comprise be threaded successively from top to bottom top connection 1, upper joint sleeve 2, seating nipple main body 3, lower joint sleeve 4 and lower contact 5, the connection of thread between adjacent component is equipped with seal washer, described top connection 1, upper joint sleeve 2, seating nipple main body 3, the center line of lower joint sleeve 4 and lower contact 5 coincides, at the threaded ends of described top connection 1, in seating nipple main body 3 and the threaded ends of lower contact 5 all offer the eccentric water injection passage 6 of the axis be connected, and the electric-controlled type flow measuring and controlling mechanism of axial distribution is provided with in the side being positioned at the eccentric water injection passage 6 in seating nipple main body 3, described electric-controlled type flow measuring and controlling mechanism comprises flow monitoring meter 8, flow regulator, electric supply installation 9 and electric controller 10, described flow monitoring meter 8, flow regulator and electric controller 10 are all electrically connected with electric supply installation 9, and flow monitoring meter 8 and flow regulator are all electrically connected with electric controller 10.
Wherein, described flow monitoring meter 8 is arranged on seating nipple main body 3 bottom and is connected with eccentric water injection passage 6 and locates, described flow regulator comprises one-way throttle valve 11, shaft coupling 12 and DC micromotor 13, described one-way throttle valve 11 is set in the centre bore of ceramic water nozzle 14, the spool of one-way throttle valve 11 is connected the power output shaft of DC micromotor 13 successively with shaft coupling 12 by reducing gear 7, described DC micromotor 13 is arranged on the top of seating nipple main body 3, DC micromotor 13 is electrically connected with electric controller 10, described electric controller 10 is arranged in the mounting groove of upper joint sleeve 2 inside, described electric supply installation 9 is arranged in the mounting groove of lower joint sleeve 4 inside.
Differential pressure pickup is provided with in described flow monitoring meter 8; and be connected with bellows 15 at the arrival end of flow monitoring meter 8; for thus protection differential pressure pickup avoid being subject to instantaneous pressure Ground shock waves, and guarantee monitor accuracy, so also make flow monitoring meter 8 to work steadily in the long term.
The water inlet of described ceramic water nozzle 14 is arranged on the sidewall of seating nipple main body 3, water inlet is arranged with filtration net cover 16, filtration net cover 16 being covered with the through hole of small diameter, for filtering the fouling particle in mine water, thus preventing ceramic water nozzle 14 blockage phenomenon.
Described electric supply installation 9 comprises button cell and battery tray, both positive and negative polarity terminals are respectively equipped with at the upper and lower side of battery tray, described flow monitoring meter 8, DC micromotor 13 are all connected both positive and negative polarity terminals by wire with electric controller 10, and be provided with removable top 17 on the top of the mounting groove of electric supply installation 9, be convenient to later stage replacing battery, wire wherein passes from the through hole be arranged on top cover 17.
During use, this eccentric injection mandrel is connected on water injection string, and tubing string is put into water injection well by construction requirement, after completing work pressure test, oil pipe pressurization is made packer set, handheld communication devices supporting is with it adopted to launch water distribution parameter to electric controller 10 by ZigBee wireless network on the ground, electric controller 10 enters automatic control water distribution pattern after completing relevant parameter Initialize installation, transfer the water distribution parameter of record in electric controller 10 in handheld communication devices by ZigBee wireless network after end-of-job, and parameter list list is derived or is printed the most at last.
Adopt above-mentioned eccentric injection mandrel without the need to pulling operation repeatedly, save a large amount of man power and material, the launch-work success rate of injection well downhole flow regulator is promoted to more than 95%, and can realize automatically testing envelope, automatic regulating water flow, automatic monitoring injection flow, achieve the digital intelligent water distribution operation of eccentric injection mandrel, automatic governing or the monitoring accuracy of electric-controlled type flow measuring and controlling mechanism are higher, admission real-time property is high, when testing, water injection well is without the need to stopping note, for the meticulous winning management of downhole petroleum provides important means.
It should be noted that above-described embodiment, be not used for limiting protection scope of the present invention, equivalents done on the basis of technique scheme or the alternative scope all falling into the claims in the present invention and protect.
Claims (5)
1. an eccentric injection mandrel, is characterized in that: comprise be threaded successively from top to bottom top connection, upper joint sleeve, seating nipple main body, lower joint sleeve and lower contact, the connection of thread between adjacent component is equipped with seal washer, described top connection, upper joint sleeve, seating nipple main body, the center line of lower joint sleeve and lower contact coincides, at the threaded ends of described top connection, in seating nipple main body and the threaded ends of lower contact all offer the eccentric water injection passage of the axis be connected, and the electric-controlled type flow measuring and controlling mechanism of axial distribution is provided with in the side being positioned at the eccentric water injection passage in seating nipple main body, described electric-controlled type flow measuring and controlling mechanism comprises flow monitoring meter, flow regulator, electric supply installation and electric controller, described flow monitoring meter, flow regulator and electric controller are all electrically connected with electric supply installation, and flow monitoring meter and flow regulator are all electrically connected with electric controller.
2. eccentric injection mandrel as claimed in claim 1, it is characterized in that, the bottom that described flow monitoring meter is arranged on seating nipple main body is connected with eccentric water injection passage and locates, described flow regulator comprises one-way throttle valve, shaft coupling and DC micromotor, described one-way throttle valve is set in the centre bore of ceramic water nozzle, the spool of one-way throttle valve is connected the power output shaft of DC micromotor successively with shaft coupling by reducing gear, described DC micromotor is arranged on the top of seating nipple main body, DC micromotor is electrically connected with electric controller, described electric controller is arranged in the mounting groove of upper joint sleeve inside, described electric supply installation is arranged in the mounting groove of lower joint sleeve inside.
3. eccentric injection mandrel as claimed in claim 2, is characterized in that, be provided with differential pressure pickup, and be connected with bellows at the arrival end of flow monitoring meter in described flow monitoring meter.
4. eccentric injection mandrel as claimed in claim 2 or claim 3, it is characterized in that, the water inlet of described ceramic water nozzle is arranged on the sidewall of seating nipple main body, and water inlet is arranged with filtration net cover.
5. eccentric injection mandrel as claimed in claim 4, it is characterized in that, described electric supply installation comprises button cell and battery tray, both positive and negative polarity terminals are respectively equipped with at the upper and lower side of battery tray, described flow monitoring meter, DC micromotor are all connected both positive and negative polarity terminals by wire with electric controller, and are provided with removable top on the top of the mounting groove of electric supply installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510894074.9A CN105298456A (en) | 2015-12-07 | 2015-12-07 | Eccentric water distributor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510894074.9A CN105298456A (en) | 2015-12-07 | 2015-12-07 | Eccentric water distributor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105298456A true CN105298456A (en) | 2016-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510894074.9A Pending CN105298456A (en) | 2015-12-07 | 2015-12-07 | Eccentric water distributor |
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| CN (1) | CN105298456A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106168126A (en) * | 2016-08-21 | 2016-11-30 | 中国石油化工股份有限公司 | A kind of layering section water injection well radio fest and control water dispensing apparatus and layering section water injection string thereof |
| CN107120100A (en) * | 2017-06-28 | 2017-09-01 | 四川省科学城久利电子有限责任公司 | A kind of water filling measurement apparatus using regulation eccentric injection allocation with one heart |
| CN108999601A (en) * | 2018-07-26 | 2018-12-14 | 中国石油天然气股份有限公司 | A kind of chemical flooding dispensing well zonal flow rate deployment device and concocting method |
| CN112267858A (en) * | 2020-09-14 | 2021-01-26 | 中国石油天然气股份有限公司 | Water distributor for oil exploitation and use method thereof |
| US11008830B2 (en) | 2018-10-15 | 2021-05-18 | Petrochina Company Limited | Stratified waterflooding apparatus |
| CN113374458A (en) * | 2021-07-07 | 2021-09-10 | 中国石油化工股份有限公司 | Intelligent stratified water injection device |
| CN116733428A (en) * | 2023-08-16 | 2023-09-12 | 黑龙江港岛科技有限公司 | Underground intelligent control type integrated injection allocation device |
-
2015
- 2015-12-07 CN CN201510894074.9A patent/CN105298456A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106168126A (en) * | 2016-08-21 | 2016-11-30 | 中国石油化工股份有限公司 | A kind of layering section water injection well radio fest and control water dispensing apparatus and layering section water injection string thereof |
| CN107120100A (en) * | 2017-06-28 | 2017-09-01 | 四川省科学城久利电子有限责任公司 | A kind of water filling measurement apparatus using regulation eccentric injection allocation with one heart |
| CN108999601A (en) * | 2018-07-26 | 2018-12-14 | 中国石油天然气股份有限公司 | A kind of chemical flooding dispensing well zonal flow rate deployment device and concocting method |
| CN108999601B (en) * | 2018-07-26 | 2021-04-13 | 中国石油天然气股份有限公司 | Chemical flooding separate injection well layered flow rate allocation method |
| US11008830B2 (en) | 2018-10-15 | 2021-05-18 | Petrochina Company Limited | Stratified waterflooding apparatus |
| CN112267858A (en) * | 2020-09-14 | 2021-01-26 | 中国石油天然气股份有限公司 | Water distributor for oil exploitation and use method thereof |
| CN113374458A (en) * | 2021-07-07 | 2021-09-10 | 中国石油化工股份有限公司 | Intelligent stratified water injection device |
| CN116733428A (en) * | 2023-08-16 | 2023-09-12 | 黑龙江港岛科技有限公司 | Underground intelligent control type integrated injection allocation device |
| CN116733428B (en) * | 2023-08-16 | 2023-11-14 | 黑龙江港岛科技有限公司 | Underground intelligent control type integrated injection allocation device |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160203 |
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| WD01 | Invention patent application deemed withdrawn after publication |