CN1844669A - Down-hole linear motor and hydraulic cylinder driven capsule pump - Google Patents
Down-hole linear motor and hydraulic cylinder driven capsule pump Download PDFInfo
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- CN1844669A CN1844669A CN 200610043710 CN200610043710A CN1844669A CN 1844669 A CN1844669 A CN 1844669A CN 200610043710 CN200610043710 CN 200610043710 CN 200610043710 A CN200610043710 A CN 200610043710A CN 1844669 A CN1844669 A CN 1844669A
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- capsule
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- linear electric
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Abstract
The invention discloses an under-well straight motor hydraulic dual-function capsule pump, which uses straight motor rotor to move reciprocated to drive the piston to discharge-adsorb working oil to expand and contract the capsule of capsule pump, to lift the well liquid to the ground. It is formed by a straight motor, upper and lower capsule pumps and electric controller; wherein, the upper end of rotor is connected to the upper piston; the lower end of rotor is connected to the lower piston; the rotor is mounted in the inner chamber of stator; the rotor drives upper and lower pistons to move up and down; the capsule is mounted outside the cylinder; the end of cylinder has hole channels; the working liquid via said hole channel enters into the annular space between the cylinder and the capsule; the upper and lower ends of capsule are mounted with oil outlet valve and oil inlet valve; the ground electric controller can step-less online adjust stroke, times and other working parameters, to realize automatic control.
Description
Technical field:
The present invention relates to a kind of oil exploration equipment, be mainly used in the oil field down-hole mechanical and recover the oil, be applicable to various conventional oil wells and the high special oil well that shakes out, contains corrosive material well liquid.
Background technique:
At present, the ground and the underground equipment of the electric rotating machine sucker rod pumping oil production method employing of generally using are various, and energy consumption is big, operational efficiency is low, and serious wear between the R a T, between plunger and the pump barrel, pump detection period is short, more is not suitable for height and contains sand drain.Oil-immersed pump is not suitable for the middle stripper well that present large size exists owing to motor speed height, discharge capacity are big, and pump efficiency is low, centrifugal blade damages soon, and the application area narrow limitation is big.
Summary of the invention:
The objective of the invention is to provide a kind of down-hole linear motor and hydraulic cylinder driven capsule pump, prevents wearing and tearing and corrosion between plunger and the pump barrel.
The present invention mainly is made up of linear electric motor, last capsule pump, following capsule pump and electric control equipment etc.The mover upper end of linear electric motor is connected with the upper piston of last capsule pump, the mover lower end is connected with the lower piston of following capsule pump, the mover of linear electric motor is contained in the inner chamber of stator, can freely pump, the capsule of upper and lower capsule pump is contained in the cylinder body outside, piston is contained in inner chamber of cylinder block, can freely pump.Oiling valve is equipped with down in the bottom of following capsule pump, outlet valve is equipped with down on top, and oiling valve is equipped with in the bottom of last capsule, outlet valve is equipped with on top, but electric control equipment step-less adjustment stroke, jig frequency and other suction operation parameter can realize electromechanical integration.
Description of drawings:
Fig. 1 is the structural representation of down-hole linear motor and hydraulic cylinder driven capsule pump of the present invention.
Among the figure, oiling valve under the 1-, 2-lower piston, capsule under the 3-, outlet valve under the 4-, 5-lower cylinder body, 6-shell, 7-mover, 8-stator, the last oiling valve of 9-, 10-upper piston, 11-upper cylinder body, the last capsule of 12-; The last outlet valve of 13-; The 14-sleeve pipe; The 15-electric control equipment.
Embodiment:
Describe structure of the present invention in detail below in conjunction with accompanying drawing.
In the accompanying drawing, down-hole linear motor and hydraulic cylinder driven capsule pump be connected with oil pipe the back in the sleeve pipe 14 with under the oil pipe to the down-hole, and by cable be contained in ground electric control equipment 15 and be connected.Mover 7 upper ends of linear electric motor are connected with the upper piston 10 of last capsule pump, the lower end of mover 7 is connected with the lower piston 2 of following capsule, and oiling valve 1 is equipped with down in the bottom of following capsule pump, and outlet valve 4 is equipped with down on top, oiling valve 9 is equipped with in the bottom of last capsule pump, and outlet valve 13 is equipped with on top.The mover 7 of linear electric motor is contained in the inner chamber of mover 8, can freely pump, the last capsule 12 of last capsule pump is contained in the outside of upper cylinder body 11, upper piston 10 is contained in the inner chamber of upper cylinder body 11, can be free up and down, the following capsule 3 of following capsule pump is contained in the outside of lower cylinder body 5, and lower piston 2 is contained in the inner chamber of lower cylinder body 5, can freely pump.During upstroke, the working solution of the annular space between the lower cylinder body 5 of following capsule pump and the following capsule 3 flows into the inner chamber of lower cylinder body 5, and following capsule 3 shrinks, and following oiling valve 1 is opened, and following outlet valve 4 cuts out, and well liquid passes through oiling valve 1 inflow A chamber down; The upper cylinder body 11 of capsule pump and the annular space between the last capsule 12 are gone up in the working solution of upper cylinder body 11 inner chambers inflow simultaneously, last capsule 12 expands, last oiling valve 9 cuts out, and last outlet valve 13 is opened, and the well liquid in the B chamber enters oil pipe and given rise to ground by last outlet valve 13.Otherwise during down stroke, last capsule pump suction well liquid is to the B chamber, and following capsule pump enters the well liquid in the A chamber oil pipe and given rise to ground by following outlet valve 4.
That the present invention has is simple in structure, reliable operation, manufacturing easily, transfer characteristics such as ginseng is easy, transmission efficiency is high, energy-conservation, can realize electromechanical integration, be specially adapted to the oil well that height contains sand and contains the well liquid of corrosive material, have broad application prospects.
Claims (2)
1, a kind of mover by linear electric motor drives reciprocating motion of the pistons discharge-suction working solution, make capsule contraction-expansion, down-hole linear motor and hydraulic cylinder driven capsule pump of lifting well liquid all in up stroke and down stroke process, it is mainly by linear electric motor, last capsule pump, following capsule pump and electric control equipment are formed, it is characterized in that: the mover upper end of linear electric motor is connected with the upper piston of last capsule pump, the mover lower end is connected with the lower piston of following capsule pump, the mover of linear electric motor is contained in the inner chamber of stator, can freely pump, on, the capsule of following capsule pump is contained in the cylinder body outside, piston is contained in inner chamber of cylinder block, can freely pump, oiling valve is equipped with down in the bottom of following capsule pump, outlet valve is equipped with down on top, and oiling valve is equipped with in the bottom of last capsule, outlet valve is equipped with on top.
2, down-hole linear motor and hydraulic cylinder driven capsule pump according to claim 1, it is characterized in that: capsule pump internal motion component contact about intercepting well liquid and linear electric motor reaching, avoid linear electric motor and motion component corroded by sand grains wearing and tearing and harmful matter, the working life of prolongation pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610043710 CN1844669A (en) | 2006-04-26 | 2006-04-26 | Down-hole linear motor and hydraulic cylinder driven capsule pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610043710 CN1844669A (en) | 2006-04-26 | 2006-04-26 | Down-hole linear motor and hydraulic cylinder driven capsule pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1844669A true CN1844669A (en) | 2006-10-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610043710 Pending CN1844669A (en) | 2006-04-26 | 2006-04-26 | Down-hole linear motor and hydraulic cylinder driven capsule pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1844669A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329244A (en) * | 2014-11-10 | 2015-02-04 | 中国石油天然气股份有限公司 | Capsule combination pump |
| CN105221378A (en) * | 2015-11-04 | 2016-01-06 | 长江大学 | A kind of double-action hydraulic piston pump |
| CN106523334A (en) * | 2014-05-27 | 2017-03-22 | 张勇 | Oil field downhole mechanical oil extraction device |
| CN106989000A (en) * | 2017-05-28 | 2017-07-28 | 上海飞舟博源石油装备技术有限公司 | Double barrier film latent oil Diaphragm pump systems and its relay lifting method |
| CN111287714A (en) * | 2018-12-10 | 2020-06-16 | 中国石油化工股份有限公司 | Device and method for lifting fluid in well |
-
2006
- 2006-04-26 CN CN 200610043710 patent/CN1844669A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523334A (en) * | 2014-05-27 | 2017-03-22 | 张勇 | Oil field downhole mechanical oil extraction device |
| CN104329244A (en) * | 2014-11-10 | 2015-02-04 | 中国石油天然气股份有限公司 | Capsule combination pump |
| CN105221378A (en) * | 2015-11-04 | 2016-01-06 | 长江大学 | A kind of double-action hydraulic piston pump |
| CN106989000A (en) * | 2017-05-28 | 2017-07-28 | 上海飞舟博源石油装备技术有限公司 | Double barrier film latent oil Diaphragm pump systems and its relay lifting method |
| CN111287714A (en) * | 2018-12-10 | 2020-06-16 | 中国石油化工股份有限公司 | Device and method for lifting fluid in well |
| CN111287714B (en) * | 2018-12-10 | 2023-12-01 | 中国石油化工股份有限公司 | Lifting device and method for well fluid |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |