CN105257259A - Mono-hydraulic system twin-well pumping unit - Google Patents
Mono-hydraulic system twin-well pumping unit Download PDFInfo
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- CN105257259A CN105257259A CN201510779666.6A CN201510779666A CN105257259A CN 105257259 A CN105257259 A CN 105257259A CN 201510779666 A CN201510779666 A CN 201510779666A CN 105257259 A CN105257259 A CN 105257259A
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Abstract
A mono-hydraulic system twin-well pumping unit consists of two single cylinder hydraulic pumping units, sharing one set of hydraulic system, of two adjacent oil wells; a hydraulic cylinder piston of each single cylinder hydraulic pumping unit is connected with the hydraulic system by a one-way valve with a spring, piston polished rods are connected with a sucker rod string, the two single cylinder pumping units can separately or simultaneously work by switching of a switch ball valve, during simultaneous working, the two single cylinder hydraulic pumping units are opposite in stroke, the piston polished rod and the hydraulic cylinder piston of one single cylinder hydraulic pumping unit downwards move under the gravity action of the sucker rod string to provide hydraulic oil in a rod cavity of a hydraulic cylinder of the pumping unit to a rod cavity of a hydraulic cylinder of the other pumping unit as upward moving power of the hydraulic cylinder piston and the piston polished rod of the other pumping unit, and the hydraulic system only needs to replenish energy lost in an operation process of the system by the ribbon spring one-way valve and the energy needed for lifting the once extract liquor of the pumping unit to the ground. The pumping unit is low in power consumption, saves investment and mounting space and is safe and reliable in operation.
Description
Technical field
The present invention relates to oil exploration equipment, particularly single hydraulic system twin-well formula oil pumper of using of a kind of oil platform well sucker rod pumping system.
Background technology
Oil pumper is as the core component in the sucker rod pumping system of oil field, and its performance and efficiency directly affect oily well yield and cost of production.
In general, oil pumper can be divided into beam pumping unit and without beam pumping unit two kinds.Because beam pumping unit has structure simply, few easy workout part, the features such as reliability is high, good endurance, and operating maintenance is convenient, therefore always by the extensive use of domestic and international oil field over more than 100 year.
Along with continually developing of China oil field, current most of oil field has entered the middle and later periods of waterflooding extraction.In order to improve the production efficiency of oily well yield and oil reservoir, require that oil production equipment must have the feature of long stroke, low jig frequency and heavy load.Practice shows, although beam pumping unit manufactures and uses comparatively ripe type, is the main force having bar oil production equipment, developed into long stroke, heavy load oil pumper difficulty comparatively large, blue elephant then has larger superiority in this respect.Without in beam pumping unit, hydraulic pumping unit has that energy-intensive, mechanical efficiency are high, compact integral structure, lightweight, floor space is little, quick for installation, be easy to safeguard, length of stroke and the feature such as number of strokes is easy to adjust, adaptation condition scope is wide, therefore, hydraulic pumping unit is expected comparatively fast to be developed in China.
Existing beam pumping unit, in its down stroke course of work, dragging motor is in non-active operating status substantially, is depleted close to the energy of 50%.And for adopting the hydraulic pumping unit of Driven by Hydraulic Cylinder, if adopt individual well operating type, namely a bite oil well is equipped with a single-cylinder hydraulic oil pumper and a set of hydraulic system, each oil well independently working, although the intrinsic feature of hydraulic pumping unit itself can be played to greatest extent, but compared with the beam pumping unit of routine, its energy consumption index there is no clear superiority; And because of hydraulic system quantity many, equipment investment is large, and installing space and installation workload are also large.
Summary of the invention
For prior art exist the problems referred to above, the object of this invention is to provide a kind of consume energy low, reduce investment outlay and installing space, single hydraulic system twin-well formula oil pumper safe and reliable to operation.
For achieving the above object, single hydraulic system twin-well formula oil pumper provided by the invention, comprise two the single-cylinder hydraulic oil pumpers being installed on (being generally no more than 30m) in a determining deviation respectively, it is characterized in that: two single-cylinder hydraulic oil pumpers share a set of hydraulic system in the following manner:
The oil revolving end (rod chamber) of the hydraulic cylinder of two single-cylinder hydraulic oil pumpers is by two mutual UNICOMs of switching ball Q2 and Q5, the connecting line of two switching ball Q2 and Q5 is connected with the oil inlet end of hydraulic system and oil revolving end respectively by two switching ball Q1 and Q6, the oil inlet end of the hydraulic cylinder of a single-cylinder hydraulic oil pumper is connected with the oil inlet end of hydraulic system by switching ball Q4, and the oil inlet end of the hydraulic cylinder of another single-cylinder hydraulic oil pumper is connected with the oil revolving end of hydraulic system by switching ball Q3; The liquid cylinder piston of two single-cylinder hydraulic oil pumpers is separately installed with the band spring one way valve with its sealed attachment, and is connected with hydraulic system.
For solving the installation stability problem of hydraulic pumping unit, lower the height of equipment as far as possible, the piston polished rod of described two single-cylinder hydraulic oil pumpers passes through thread connection with rod string respectively.
Compared with prior art, advantage of the present invention is:
1, oil pumper of the present invention, two single-cylinder hydraulic oil pumpers used for two mouthfuls of close for operating mode in one determining deviation oil wells are shared a set of hydraulic system, by the automatic switchover on hydraulic valve road, by the kinetic energy that the transform gravitational energy in a wherein oil pumper down stroke process is another oil pumper up stroke, hydraulic system only need supplement lack part and the loss part of rising kinetic energy by the band spring one way valve connected with liquid cylinder piston, thus realizes energy-saving and cost-reducing object.
2, two single-cylinder hydraulic oil pumpers share a set of hydraulic system, can greatly reduce the quantity of hydraulic system, reduce equipment investment, save installing space and installation workload.
3, the piston rod of hydraulic cylinder is used as polished rod, while reducing device height, raising equipment installation stability to greatest extent, because moving component is positioned at polished rod sealer inside, above ground portion does not have moving component substantially, thus eliminates security risk existing in conventional pumping unit running.
Accompanying drawing explanation
Fig. 1 is the structure principle chart of oil pumper of the present invention.
Detailed description of the invention:
Below in conjunction with drawings and Examples, the invention will be further described.
As shown in Figure 1, the present embodiment list hydraulic system twin-well formula oil pumper, by within the 30m, two single-cylinder hydraulic oil pumpers of two mouthfuls of oil wells that operating mode is close and shared a set of hydraulic system thereof form.Two single-cylinder hydraulic oil pumpers (identical with prior art structure) respectively by piston polished rod 1 and 15, rod string load transducer 2 and 14, hydraulic cylinder 3 and 13, liquid cylinder piston 4 and 12, be with spring one way valve 5 and 11 and stroke measurement mechanism 6 and 10 to form; Hydraulic system is made up of with flow control valve 28 (after solenoid operated directional valve 16, preamble section is identical with prior art structure) switching ball 7 (comprising Q1 ~ Q6), balance regulating valve 8 and 9, solenoid operated directional valve 16, pressure adjustment relief valve 17, content gauge 18, temperature pick up 19, blowoff valve 20, return filter 21, heating system 22, inlet oil filter 23, oil-feed switch valve 24, cooling system 25, high-pressure plunger pump 26, pressure gauge 27.
The oil revolving end (rod chamber) of the hydraulic cylinder of two single-cylinder hydraulic oil pumpers is by the mutual UNICOM of switching ball Q2 and Q5, the connecting line of two switching ball Q2 and Q5 is connected respectively by the oil inlet end of solenoid operated directional valve 16 and hydraulic system and oil revolving end by two switching ball Q1 and Q6, the oil inlet end of the hydraulic cylinder of a single-cylinder hydraulic oil pumper is connected with the oil inlet end of hydraulic system by switching ball Q4, and the oil inlet end of the hydraulic cylinder of another single-cylinder hydraulic oil pumper is connected with the oil revolving end of hydraulic system by switching ball Q3; The liquid cylinder piston 4 and 12 of two single-cylinder hydraulic oil pumpers is separately installed with the band spring one way valve 5 and 11 with its sealed attachment, and is connected with hydraulic system (not shown).
The piston polished rod 1 and 15 of two single-cylinder hydraulic oil pumpers respectively with rod string by thread connection (not shown) without the need to separately adding oil pumping polish rod.
Rod string load transducer 2 and 14, hydraulic cylinder 3 and 13 and oil well production tree flange are bolted (not shown).
Band spring one way valve 5 and 11 respectively with liquid cylinder piston 4 and 12 sealed attachment.
Two single-cylinder hydraulic oil pumpers, by changing the on off operating mode of switching ball Q1 ~ Q6, can realize working individually or simultaneously: switching ball Q1, Q4, Q5 close, and when switching ball Q2, Q3, Q6 open, the oil pumper in left side works independently; Switching ball Q1, Q4, Q5 open, and when switching ball Q2, Q3, Q6 close, the oil pumper on right side works independently; Switching ball Q2, Q3, Q4, Q5 open, and when switching ball Q1, Q6 close, 2 oil pumpers work simultaneously.
When two oil pumpers work simultaneously, its stroke is contrary, and one up then, and another is descending.Wherein the piston polished rod of and liquid cylinder piston can be descending without additionaling power within the specific limits under the effect of rod string gravity, hydraulic oil in this pumping unit hydraulic cylinder rod chamber is provided in the rod chamber of another pumping unit hydraulic cylinder by balance regulating valve, as the upper action edge of its liquid cylinder piston and piston polished rod, otherwise after up-downgoing commutation, and so forth.Hydraulic system only need be supplemented the energy of loss in oil pumper running by band spring one way valve and oil pumper can be made by the oil well pump single Produced Liquid energy be promoted to needed for ground to keep ceaselessly running.
The up-downgoing load of two single-cylinder hydraulic oil pumpers obtains by rod string load transducer.
The upper and lower travel speed of two single-cylinder hydraulic oil pumpers and jig frequency realize regulable control by balance regulating valve 8 and 9, pressure adjustment relief valve 17 and flow control valve 28.
Stroke measurement mechanism 6 and 10 can respectively Real-Time Monitoring hydraulic pumping unit travel position and carry out regulable control by control system.
Hydraulic control system according to the data of rod string load transducer 2 and 14, can judge the production status of two mouthfuls of oil wells, realizes the automatic DNA image cytometer adjustment of the stroke of two single-cylinder hydraulic oil pumpers, jig frequency parameter.
Stroke, the jig frequency parameter of two single-cylinder hydraulic oil pumpers can be set respectively in hydraulic control system; By control system, dynamic analysis being carried out to the data parameters of oil well, the parameters such as Automatic Optimal stroke, jig frequency, and realize the function such as storage, output of data, providing condition for realizing oil field digital management.
When adopting oil pumper of the present invention, should first according to the specifications and models of oil well situation determination single-cylinder hydraulic oil pumper and hydraulic system; Then two mouthfuls of oil wells that operating mode is close in a determining deviation are installed respectively single-cylinder hydraulic oil pumper (by bolt and production tree Flange joint), the piston polished rod of oil pumper is connected with sucker rod, and at pithead position, polished rod sealer is installed; Then connecting fluid pressure pipeline; Parameter such as setting stroke, jig frequency etc.; Make hydraulic work system, two single-cylinder hydraulic oil pumper then alternately reciprocating actions, realize automation oil recovery process.As the work of working condition requirement separate unit oil pumper, then switch corresponding switching ball.
Claims (2)
1. a single hydraulic system twin-well formula oil pumper, comprises two the single-cylinder hydraulic oil pumpers being respectively used to adjacent two mouthfuls of oil wells, it is characterized in that: two single-cylinder hydraulic oil pumpers share a set of hydraulic system in the following manner:
The oil revolving end of the hydraulic cylinder of two single-cylinder hydraulic oil pumpers is by two mutual UNICOMs of switching ball Q2 and Q5, the connecting line of two switching ball Q2 and Q5 is connected with the oil inlet end of hydraulic system and oil revolving end respectively by two switching ball Q1 and Q6, the oil inlet end of the hydraulic cylinder of a single-cylinder hydraulic oil pumper is connected with the oil inlet end of hydraulic system by switching ball Q4, and the oil inlet end of the hydraulic cylinder of another single-cylinder hydraulic oil pumper is connected with the oil revolving end of hydraulic system by switching ball Q3; The liquid cylinder piston of two single-cylinder hydraulic oil pumpers is separately installed with the band spring one way valve with its sealed attachment, and is connected with hydraulic system.
2. single hydraulic system twin-well formula oil pumper according to claim 1, is characterized in that: the piston polished rod of described two single-cylinder hydraulic oil pumpers passes through thread connection with rod string respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510779666.6A CN105257259A (en) | 2015-11-14 | 2015-11-14 | Mono-hydraulic system twin-well pumping unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510779666.6A CN105257259A (en) | 2015-11-14 | 2015-11-14 | Mono-hydraulic system twin-well pumping unit |
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| CN105257259A true CN105257259A (en) | 2016-01-20 |
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| CN201510779666.6A Pending CN105257259A (en) | 2015-11-14 | 2015-11-14 | Mono-hydraulic system twin-well pumping unit |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111101904A (en) * | 2020-01-19 | 2020-05-05 | 胡勇 | Double-machine double-well interactive balance device of winch type non-beam pumping unit |
| CN112879364A (en) * | 2021-03-31 | 2021-06-01 | 驰耐特石油科技(成都)有限公司 | Energy-saving hydraulic system for hydraulic pumping unit |
| CN113417899A (en) * | 2021-07-22 | 2021-09-21 | 齐齐哈尔和平重工集团有限公司 | Energy-saving hydraulic system applied to hydraulic pumping unit |
| CN113982539A (en) * | 2021-12-01 | 2022-01-28 | 驰耐特石油科技(成都)有限公司 | Down-pressure multifunctional hydraulic pumping unit and application |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20080223029A1 (en) * | 2007-03-14 | 2008-09-18 | Randall Friesen | Oil cooling circuit for continuosly reciprocating hydraulic cylinders |
| CN102108847A (en) * | 2011-01-17 | 2011-06-29 | 濮阳市威克瑞石油机械制造有限公司 | Dual well balance type hydraulic pumping unit and working method thereof |
| CN202926295U (en) * | 2012-10-26 | 2013-05-08 | 施伟 | Cluster-type hydraulic pressure pumping unit |
| CN203383792U (en) * | 2013-07-19 | 2014-01-08 | 王文雯 | Balanced type one-machine multi-well energy saving hydraulic pumping unit |
| CN205117301U (en) * | 2015-11-14 | 2016-03-30 | 沈阳思达机械设备有限公司 | Single hydraulic system twin -well formula beam -pumping unit |
-
2015
- 2015-11-14 CN CN201510779666.6A patent/CN105257259A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080223029A1 (en) * | 2007-03-14 | 2008-09-18 | Randall Friesen | Oil cooling circuit for continuosly reciprocating hydraulic cylinders |
| CN102108847A (en) * | 2011-01-17 | 2011-06-29 | 濮阳市威克瑞石油机械制造有限公司 | Dual well balance type hydraulic pumping unit and working method thereof |
| CN202926295U (en) * | 2012-10-26 | 2013-05-08 | 施伟 | Cluster-type hydraulic pressure pumping unit |
| CN203383792U (en) * | 2013-07-19 | 2014-01-08 | 王文雯 | Balanced type one-machine multi-well energy saving hydraulic pumping unit |
| CN205117301U (en) * | 2015-11-14 | 2016-03-30 | 沈阳思达机械设备有限公司 | Single hydraulic system twin -well formula beam -pumping unit |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111101904A (en) * | 2020-01-19 | 2020-05-05 | 胡勇 | Double-machine double-well interactive balance device of winch type non-beam pumping unit |
| CN112879364A (en) * | 2021-03-31 | 2021-06-01 | 驰耐特石油科技(成都)有限公司 | Energy-saving hydraulic system for hydraulic pumping unit |
| CN113417899A (en) * | 2021-07-22 | 2021-09-21 | 齐齐哈尔和平重工集团有限公司 | Energy-saving hydraulic system applied to hydraulic pumping unit |
| CN113982539A (en) * | 2021-12-01 | 2022-01-28 | 驰耐特石油科技(成都)有限公司 | Down-pressure multifunctional hydraulic pumping unit and application |
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Application publication date: 20160120 |