CN202157792U - Underground production allocation device for oil well - Google Patents

Underground production allocation device for oil well Download PDF

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Publication number
CN202157792U
CN202157792U CN2011202053109U CN201120205310U CN202157792U CN 202157792 U CN202157792 U CN 202157792U CN 2011202053109 U CN2011202053109 U CN 2011202053109U CN 201120205310 U CN201120205310 U CN 201120205310U CN 202157792 U CN202157792 U CN 202157792U
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CN
China
Prior art keywords
valve body
check valve
passage
fixed
motor reducer
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Expired - Lifetime
Application number
CN2011202053109U
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Chinese (zh)
Inventor
李良川
肖国华
王金忠
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China Petroleum and Natural Gas Co Ltd
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China Petroleum and Natural Gas Co Ltd
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Priority to CN2011202053109U priority Critical patent/CN202157792U/en
Application granted granted Critical
Publication of CN202157792U publication Critical patent/CN202157792U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

An underground production allocation device for an oil well is applied in the underground production allocation device of oil fields. A valve seat body is arranged at the middle part in a connecting seat, a passage communicated with upper and lower horizons is arranged on one side of the valve seat body; a cylindrical retaining valve body is fixed at the center on the upper end surface of the valve seat body; a retaining valve ball is arranged in the retaining valve body; a side hole is arranged at the lower part of the retaining valve body; an oil recovery side passage is communicated with the side hole at the lower part of the retaining valve ball; a seal valve core is arranged at the middle part of the retaining valve body; a production allocation passage is opposite to the seal valve core; a connecting rod is connected with the upper end of the seal valve core; a motor reducer is connected with the upper end of the connecting rod and fixed at the upper end of the retaining valve body; and a switch controller and a storage battery are fixed at the upper part of the motor reducer. The underground production allocation device has the effects that layered water exploration and water plugging as well as the manufacturing process can be completed through a pipe column once for all, and the underground changing over action can be carried out flexibly through the ground water injection and pressurization, so as to complete the multi-stage control of the horizon output passage.

Description

Oil well is used bottom hole production allocator
Technical field
The utility model relates to oil recovery technique field, oil field, and particularly a kind of downhole tool is that a kind of oil well is used bottom hole production allocator.
Background technology
Along with oil field development get in high water-cut stage, contradiction becomes increasingly conspicuous between oil reservoir, after a large amount of underground water is disabled extraction, carries out on ground that later separation is handled, re-injection has consumed great amount of cost again.How to find out and the high aquifer of shutoff, the low aquifer of exploitation effectively reduces cost for oil production, is a technical barrier that needs to be resolved hurrily that faces the oil field development midium or long term.
At present, there are producing profile testing water detection technology, packer water detection one water-plugging technique, underground hydraulic pressure switch to transfer layer to look for water-plugging technique, down-hole motor switch to transfer layer to look for four technology of water-plugging technique to address this problem.But these several kinds conventional water-plugging techniques only are applicable to the complete shutoff of clear and definite water-yielding stratum, have sacrificed the oil productive capacity of plugged zone, and can't dynamically adjust each interval production fluid amount according to each interval production fluid situation of change, are difficult to satisfy the needs of the present condition of production.
In recent years; Deficiency to above-mentioned technology exists has worked out rod-pumped well and has crossed annular space regulating multi-zone production rate technology, and this technology can realize the dynamic adjustment of each interval production fluid amount under the rod-pumped well working condition; But this Technology Need uses cable to be lowered to annular space joins and produces appearance and carry out layering allotment construction; Therefore, construction cost and security risk increase, and The field is restricted.
The utility model content
The purpose of the utility model is: provide a kind of oil well to use bottom hole production allocator; Use electromechanical integration technology; Suppress flexible completion down-hole through the ground water filling and join product adjusting action; Realize that production mandrel and the multiple-string packer tubing string of giving up combines, effectively solve the looking for of high-water-cut oil-producing well, water blockoff and join the product problem.The existing rod-pumped well of solution is crossed annular space regulating separate stratum production string instrument and is joined the product method and need descend wireline operation could realize the deficiency that the regulating multi-zone production rate survey is transferred.
The technical scheme that the utility model adopts is: oil well is used bottom hole production allocator; Mainly be made up of Connection Block, unidirectional valve ball, check valve body, top connection, shutoff spool, connecting rod, motor reducer, on-off controller and battery, there is external screw thread at the top connection two ends, and the lower end of top connection is connected the upper end of Connection Block; There is external screw thread the lower end of Connection Block; Can be connected with down-hole string, it is characterized in that: the middle part has valve body, a side of valve body that axial levels bit string circulation passage is arranged in Connection Block; Centre bit is equipped with a valve body fixing hole in the upper surface of valve body, in the valve body fixing hole, is fixed with a cylinder bodily form check valve body, between the outer wall of check valve body and the top connection inwall annular space is arranged; A unidirectional valve ball is arranged in check valve body; Side opening is arranged at the bottom in check valve body, and side opening is in the bottom of unidirectional valve ball; The oil recovery wing passage is arranged on the Connection Block sidewall, and the oil recovery wing passage is communicated with the side opening of unidirectional valve ball bottom; In the centre bore of check valve body middle part, a shutoff spool is arranged, on the sidewall of check valve body middle part, the product of joining passage is arranged, join that to produce passage relative with the shutoff spool; Join and produce passage and be communicated with annular space between check valve body and the top connection; Levels bit string circulation passage is communicated with annular space between check valve body and the top connection; Be connected with a connecting rod in the upper end of shutoff spool, the upper end of connecting rod connects the output shaft of motor reducer, and motor reducer is fixed on the upper end of check valve body; Top at motor reducer is fixed with on-off controller, is fixed with battery on the top of on-off controller, between battery and the on-off controller and with the motor of motor reducer between have lead to be connected.The effect of unidirectional valve ball is when suppressing on ground, and unidirectional valve ball is closed, and liquid that can not gets into oil reservoir, can not damage oil reservoir.The opening and close of shutoff spool can be realized regulating and joined product; On-off controller control motor reducer reaches control shutoff spool, thus adjustment join produce passage open or close extent.
For production wells downforce information, on on-off controller, be fixed with pressure gauge.
The beneficial effect of the utility model: the utility model oil well is used bottom hole production allocator; Can not only accomplish processes such as layering water detection, water blockoff and regulating multi-zone production rate with the water detecting and plugging pipe column realization combining one-trip string of giving up; And suppress flexible realization downhole deployment through the ground water filling and move, accomplish Multistage Control to the output passage of layer position.Need not the lower tubular column operation, construction cost is low, have simple to operate, reliable operation, success rate advantages of higher.Accomplish the Multistage Control of the output passage of oil well layer position.
Description of drawings
Fig. 1 is that the utility model oil well is with bottom hole production allocator structural profile sketch map.
Among the figure, the 1-Connection Block, the unidirectional valve ball of 2-, the 3-check valve body, the 4-top connection, 5-shutoff spool, the 6-connecting rod, the 7-motor reducer, the 8-on-off controller, the 9-pressure gauge, 10-battery, 11-are joined the product passage, 12-oil recovery wing passage, 13-levels bit string circulation passage.
The specific embodiment
Embodiment 1: use bottom hole production allocator to be example with an oil well, the utility model is done further explain.
Consult Fig. 1.The utility model oil well is used bottom hole production allocator; Mainly form by Connection Block 1, unidirectional valve ball 2, check valve body 3, top connection 4, shutoff spool 5, connecting rod 6, motor reducer 7, on-off controller 8 and battery 10; There is external screw thread at top connection 4 two ends; The lower end of top connection 4 is connected the upper end of Connection Block 1, and there is external screw thread the lower end of Connection Block 1.There is valve body at the middle part in Connection Block 1, and a side of valve body has an axially extending bore, i.e. levels bit string circulation passage 13.
Centre bit is equipped with a valve body fixing hole in the upper surface of valve body; In the valve body fixing hole, be fixed with a cylinder bodily form check valve body 3; The lower end that is check valve body 3 is fixed in the valve body fixing hole, between the outer wall of check valve body 3 and top connection 4 inwalls annular space is arranged.A unidirectional valve ball 2 is arranged in check valve body 3.Side opening is arranged at the bottom in check valve body 3, and side opening is in the bottom of unidirectional valve ball 2.An oil recovery wing passage 12 is obliquely arranged on Connection Block 1 sidewall, and oil recovery wing passage 12 is communicated with the side opening of unidirectional valve ball 2 bottoms.A tubular shutoff spool 5 is arranged in check valve body 3 middle part centre bores, on check valve body 3 middle part sidewalls, have two to join and produce passage 11 (manhole), join that to produce passage 11 relative with shutoff spool 5.Join and produce passage 11 and be communicated with annular space between check valve body 3 and the top connection 4.Levels bit string circulation passage 13 is communicated with annular space between check valve body 3 and the top connection 4.
Be connected with a connecting rod 6 in the upper end of shutoff spool 5, the upper end of connecting rod 6 connects the output shaft of motor reducer 7, and motor reducer 7 is fixed on the upper end of check valve body 3.Be fixed with an on-off controller 8 that comprises that microprocessor is formed on the top of motor reducer 7, be fixed with battery 10 on the top of on-off controller 8, between battery 10 and the on-off controller 8 and with the motor of motor reducer 7 between have lead to be connected.
On on-off controller 8, be fixed with a pressure gauge 9.

Claims (2)

1. an oil well is used bottom hole production allocator; Mainly form by Connection Block (1), unidirectional valve ball (2), check valve body (3), top connection (4), shutoff spool (5), connecting rod (6), motor reducer (7), on-off controller (8) and battery (10); There is external screw thread at top connection (4) two ends; The lower end of top connection (4) is connected the upper end of Connection Block (1); There is external screw thread the lower end of Connection Block (1), it is characterized in that: there is valve body at the middle part in Connection Block (1), and a side of valve body has axial levels bit string circulation passage (13); Centre bit is equipped with a valve body fixing hole in the upper surface of valve body, in the valve body fixing hole, is fixed with a cylinder bodily form check valve body (3), between the outer wall of check valve body (3) and top connection (4) inwall annular space is arranged; A unidirectional valve ball (2) is arranged in check valve body (3); Side opening is arranged at the bottom in check valve body (3), and side opening is in the bottom of unidirectional valve ball (2); On Connection Block (1) sidewall, oil recovery wing passage (12) is arranged, oil recovery wing passage (12) is communicated with the side opening of unidirectional valve ball (2) bottom; In the middle part of check valve body (3), in the centre bore shutoff spool (5) is arranged, on the sidewall of check valve body (3) middle part, have to join and produce passage (11), join product passage (11) and shutoff spool (5) relatively; Join and produce passage (11) and be communicated with annular space between check valve body (3) and the top connection (4); Levels bit string circulation passage (13) is communicated with annular space between check valve body (3) and the top connection (4); Be connected with a connecting rod (6) in the upper end of shutoff spool (5), the upper end of connecting rod (6) connects the output shaft of motor reducer (7), and motor reducer (7) is fixed on the upper end of check valve body (3); Be fixed with on-off controller (8) on the top of motor reducer (7), be fixed with battery (10) on the top of on-off controller (8), between battery (10) and the on-off controller (8) and with the motor of motor reducer (7) between have lead to be connected.
2. oil well according to claim 1 is used bottom hole production allocator, it is characterized in that: on on-off controller (8), be fixed with pressure gauge (9).
CN2011202053109U 2011-06-17 2011-06-17 Underground production allocation device for oil well Expired - Lifetime CN202157792U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011202053109U CN202157792U (en) 2011-06-17 2011-06-17 Underground production allocation device for oil well

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011202053109U CN202157792U (en) 2011-06-17 2011-06-17 Underground production allocation device for oil well

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Publication Number Publication Date
CN202157792U true CN202157792U (en) 2012-03-07

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CN2011202053109U Expired - Lifetime CN202157792U (en) 2011-06-17 2011-06-17 Underground production allocation device for oil well

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103195399A (en) * 2013-04-02 2013-07-10 中国石油天然气股份有限公司 Single-pressure double-valve electrical-control joint exploitation pipe column and controlling method
CN103266867A (en) * 2013-05-31 2013-08-28 中国石油集团川庆钻探工程有限公司 Horizontal well water exploration valve
CN103470230A (en) * 2013-08-30 2013-12-25 成都科盛石油科技有限公司 Dead-angle-free production allocation machine
CN103470231A (en) * 2013-08-30 2013-12-25 成都科盛石油科技有限公司 Bottom-hole regulator with hemispherical structure on plug
CN103470232A (en) * 2013-08-30 2013-12-25 成都科盛石油科技有限公司 Production allocation machine with baffle plates
CN108240206A (en) * 2018-01-08 2018-07-03 北京合力奇点科技有限公司 Switchable tune flow control water installations and its control water completion flow string
CN110984953A (en) * 2019-11-19 2020-04-10 东北石油大学 Harmful gas treatment method in fracturing flow-back process
CN113153239A (en) * 2020-01-23 2021-07-23 中国石油天然气股份有限公司 From branch of control liquid production volume adopt ware and tubular column

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103195399A (en) * 2013-04-02 2013-07-10 中国石油天然气股份有限公司 Single-pressure double-valve electrical-control joint exploitation pipe column and controlling method
CN103195399B (en) * 2013-04-02 2015-09-30 中国石油天然气股份有限公司 Single pressure automatically controlled commingled column of bivalve and regulate and control method
CN103266867A (en) * 2013-05-31 2013-08-28 中国石油集团川庆钻探工程有限公司 Horizontal well water exploration valve
CN103266867B (en) * 2013-05-31 2015-10-21 中国石油集团川庆钻探工程有限公司 A kind of horizontal well water exploration valve
CN103470230A (en) * 2013-08-30 2013-12-25 成都科盛石油科技有限公司 Dead-angle-free production allocation machine
CN103470231A (en) * 2013-08-30 2013-12-25 成都科盛石油科技有限公司 Bottom-hole regulator with hemispherical structure on plug
CN103470232A (en) * 2013-08-30 2013-12-25 成都科盛石油科技有限公司 Production allocation machine with baffle plates
CN108240206A (en) * 2018-01-08 2018-07-03 北京合力奇点科技有限公司 Switchable tune flow control water installations and its control water completion flow string
CN110984953A (en) * 2019-11-19 2020-04-10 东北石油大学 Harmful gas treatment method in fracturing flow-back process
CN110984953B (en) * 2019-11-19 2022-03-29 东北石油大学 Harmful gas treatment method in fracturing flow-back process
CN113153239A (en) * 2020-01-23 2021-07-23 中国石油天然气股份有限公司 From branch of control liquid production volume adopt ware and tubular column

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Granted publication date: 20120307

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