CN202055807U - Hydraulic twin-well oil pumping unit utilizing back pressure of closed loop - Google Patents
Hydraulic twin-well oil pumping unit utilizing back pressure of closed loop Download PDFInfo
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- CN202055807U CN202055807U CN2010206432646U CN201020643264U CN202055807U CN 202055807 U CN202055807 U CN 202055807U CN 2010206432646 U CN2010206432646 U CN 2010206432646U CN 201020643264 U CN201020643264 U CN 201020643264U CN 202055807 U CN202055807 U CN 202055807U
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Abstract
The utility model discloses a hydraulic twin-well oil pumping unit utilizing back pressure of a closed loop, which comprises a hydraulic pumping station and two hydraulic oil cylinders. The hydraulic pumping station is connected with the two hydraulic oil cylinders through pipes, the hydraulic oil cylinders are respectively mounted above the oil pumping unit, and piston rods of the two hydraulic oil cylinders respectively extend out downwardly and both are connected with a pump rod of the oil pumping unit; the hydraulic system of the hydraulic pumping station comprises an oil tank, an oil pump and a proportional reversal valve, the proportional reversal valve is provided with an oil inlet port P, an oil return port T, an oil port A and an oil port B, the oil port A and the oil port B of the proportional reversal valve are respectively connected with oil cylinder cavities below pistons, an oil pump outlet is connected with the oil inlet port P of the proportional reversal valve, and the oil return port T of the proportional reversal valve is connected with the oil tank through a valve and is connected with the oil pump inlet through another valve; and the oil cylinder cavities above the pistons of the hydraulic oil cylinders are communicated with atmospheric environment through air inlets and air outlets.
Description
Technical field
The utility model relates to the petroleum recovering apparatus field, specifically is that a kind of closed-loop path back pressure is utilized the hydraulic pressure twin-well oil-pumping machine.
Background technology
Petroleum recovering equipment is covering extensive fields, each has something to recommend him at present, and in existing petroleum recovering equipment, oil production equipment stable and reliable for performance, efficient energy-saving has become main flow, but still can there be some defectives in each equipment in some aspects.As the machine of kowtowing that is commonly called as, it is celebrated with stability and reliability, is widely used in field of petroleum exploitation, but along with the variation of geological conditions, and big load, the requirement of stroke has brought an insoluble difficult problem to the machine of kowtowing greatly.The general inapplicable oil well in high depth of existing petroleum recovering equipment recovers the oil, and that research and development have is energy-efficient, the oil production equipment of high-adaptability and advantage such as economical and practical has become problem anxious to be solved.
The utility model content
At the problem that prior art exists, the purpose of this utility model is to provide a kind of employing one group of hydraulic power unit, thereby the closed-loop path back pressure of finishing two mouthfuls of oil wells while oil producing operations is utilized the hydraulic pressure twin-well oil-pumping machine.
The utility model takes following technical scheme to realize:
A kind of closed-loop path back pressure is utilized the hydraulic pressure twin-well oil-pumping machine, comprise hydraulic power unit and two hydraulic jacks, described hydraulic power unit respectively connects a hydraulic jack with pipeline, hydraulic jack is installed in the oil pumper top respectively, and the piston rod of described each hydraulic jack stretches out downwards and links to each other with the pump rod of described oil pumper respectively; The hydraulic system of described hydraulic power unit comprises fuel tank, oil pump and proportional reversing valve, described proportional reversing valve has oil inlet P, oil return inlet T, hydraulic fluid port A and hydraulic fluid port B, the hydraulic fluid port A of described proportional reversing valve and oil cylinder cavity below hydraulic fluid port B is connected piston respectively, described oil pump outlet is connected in the oil inlet P of described proportional reversing valve, and the oil return inlet T of described proportional reversing valve is connected in fuel tank and is connected in described oil pump inlet by valve by valve; Oil cylinder cavity above the piston of described hydraulic jack communicates with atmospheric environment by porting.
Described fuel tank has one, and oil pump and proportional reversing valve have two covers and place oil circuit to be in state in parallel, forms a cover operation hydraulic power unit and a cover redundant hydraulic pumping plant.The redundant hydraulic pumping plant has following three functions: use when the individual well operation (1), produces to avoid influencing when wherein a bite well breaks down; (2) use as the starting pumping plant; Use when (3) the operation pumping plant keeps in repair, influence is produced when breaking down to avoid moving pumping plant.
Valve between described proportional reversing valve oil return inlet T and the fuel tank is a throttling stop valve, so that oil return circuit keeps certain pressure and the oil return when being used to control the individual well operation and closing when twin-well moves.
Described hydraulic pressure twin-well oil-pumping machine comprises accumulator, and described accumulator is installed on the oil return inlet T and the pipeline between the described oil pump inlet of described proportional reversing valve.
Described hydraulic pressure twin-well oil-pumping machine comprises overflow valve, and described overflow valve is installed between described oil pump outlet and the fuel tank, to avoid superpressure.
Described hydraulic pressure twin-well oil-pumping machine comprises controller, the input link position sensor of described controller, and the output of controller is connected with proportional reversing valve; The corresponding piston rod of described position sensor is installed.
Described hydraulic pressure twin-well oil-pumping machine also comprises and is installed in the pilot operated valve device that plays the safeguard protection effect between proportional reversing valve and the oil cylinder.
In described oil pump exit an one way valve is installed.
The porting of the oil cylinder cavity above the piston of described hydraulic jack is equipped with air filter.
On the hydraulic fluid port A of described proportional reversing valve and pipeline that oil cylinder cavity below hydraulic fluid port B is connected piston respectively connects, pressure sensor is installed.
The beneficial effects of the utility model are:
A kind of closed-loop path of the utility model back pressure is utilized the hydraulic pressure twin-well oil-pumping machine, adopts one group of hydraulic power unit, and two oil cylinders are connected with two mouthfuls of oil well bar pumps respectively, thereby finishes two mouthfuls of oil wells oil producing operation simultaneously.With respect to traditional oil pumper, the hydraulic pressure twin-well oil-pumping machine has the following advantages: (1) is energy-efficient: when running job, energy when hydraulic system is can be with the bar pump descending is made full use of, and it presses individual well, and to calculate the required power ratio normal power of operation energy-conservation more than 70%; (2) high-adaptability: because of the major impetus of this equipment be electric energy and hydraulic pressure can transfer process, equipment is arranged compact, volume is little, it is little to be affected by the external environment, can adapt to marine and extremely frigid zones operation, be suitable for distance in the twin-well operation simultaneously of 50m with interior different depth, different oil, different pump footpath; (3) economical and practical: this equipment making cost is low, small investment, and a machine twin-well, output is than high.
Description of drawings
Fig. 1 is the structural representation of the utility model hydraulic pressure twin-well oil-pumping machine;
Fig. 2 is the hydraulic system schematic diagram of the utility model hydraulic power unit;
Among the figure: 1-hydraulic power unit, 2-pressure duct, 3-hydraulic jack, 4-piston rod, 5-connecting ring, the 6-oil well, 7-pump rod, 8-support, 9-auxiliary stand, 10-fuel tank, 11-oil suction cleaner, 12-stop valve, 13-accumulator, 14-oil pump, 15-shaft coupling, the 16-motor, 17-high pressure filter, 18-one way valve, 19-overflow valve, the 20-throttling stop valve, 21-proportional reversing valve, 22-pressure meter, 23-pilot operated valve device, the 24-pressure sensor, 25-position sensor, 26-air filter, 27-oil cylinder.
The specific embodiment
Below by specific embodiment the utility model is described in further detail.
Shown in Figure 1 as Figure of description, a kind of closed-loop path of the utility model back pressure is utilized the hydraulic pressure twin-well oil-pumping machine, comprise hydraulic power unit 1 and two hydraulic jacks, hydraulic power unit 1 the right and left respectively connects a hydraulic jack 3 with pressure duct 2, hydraulic jack 3 is installed in respectively and is positioned on hydraulic power unit 1 the right and left support 8, and the piston rod 4 of each hydraulic jack 3 stretches out downwards and links to each other by coupling ring 5 with the pump rod 7 of oil well bar pump respectively.The pump rod 7 of bar pump is oil pumping outward from oil well 6.In addition, two auxiliary stands 9 about the hydraulic pressure twin-well oil-pumping machine also comprises, the upper end of auxiliary stand 9 is connected the upper end of homonymy hydraulic jack 3, and the lower end of auxiliary stand 9 is installed on the level frame with side stand 8.
Shown in Figure 2 as Figure of description, the hydraulic system of hydraulic power unit comprises fuel tank 10, oil pump 14 and proportional reversing valve 21, proportional reversing valve 21 has oil inlet P, oil return inlet T, hydraulic fluid port A and hydraulic fluid port B, the hydraulic fluid port A of proportional reversing valve 21 and oil cylinder 27 cavitys below hydraulic fluid port B is connected piston respectively are to provide power to the oil cylinder fuel feeding, oil pump 14 outlets are connected in the oil inlet P of proportional reversing valve 21, the oil return inlet T of proportional reversing valve 21 is connected in fuel tank 10 by throttling stop valve 20, when individual well is worked, to be used for to tank drainback, and be connected in oil pump 14 inlet by stop valve 12, form back pressure and utilize the closed-loop path; Oil cylinder cavity above the piston of hydraulic jack 27 communicates with atmospheric environment by porting, and air filter 26 also is installed on the porting, enters the flexible operation that oil cylinder influences piston to prevent dust etc.
Fuel tank 10 has one, and oil pump 14 and proportional reversing valve 21 have two covers and place oil circuit to be in state in parallel, forms a cover operation hydraulic power unit and a cover redundant hydraulic pumping plant.The operating pressure of operation hydraulic power unit is below 30MPa, and flow is equipped with the operation power of motor between 30-75kw between 100-420L/min.The redundant hydraulic pumping plant, its operating pressure, flow are consistent with the operation hydraulic power unit, and the power of motor of outfit is between 55-200kw.Hydraulic jack is determined size according to different loads, in order to make its applicability extensive, generally selects cylinder diameter at 90-160mm, the oil cylinder of bar footpath between 45-80mm.
Oil comes out to be transported to corresponding proportional reversing valve 21 after process oil pump 14 boosts from fuel tank 10, motor 16 drives oil pump 14 by shaft coupling 15, an one way valve 18 respectively is installed in two oil pump exits is used to prevent that hydraulic oil from refluxing to oil pump 14 directions, the stop valve 12 of a plurality of control oil channel switchings is installed on the oil circuit.Between oil pump 14 and one way valve 18, high pressure filter 17 is installed, also comprises the overflow valve that plays the safeguard protection effect 19 that is installed between oil pump 14 outlets and the fuel tank 10, on the UNICOM's pipeline between two oil pump outlets, pressure meter 22 is installed.
As shown in Figure 2; the hydraulic fluid port A of proportional reversing valve 21 and hydraulic fluid port B are connected oil cylinder cavity below the piston by a pilot operated valve device 23 respectively; pilot operated valve device 23 plays the safeguard protection effect; when pressure is lower than the setting value of pilot operated valve device when oil circuit has leakage; pilot operated valve device is closed automatically, makes the piston stop motion, avoids when the oil feed line decompression; the piston rod high-speed downstream damages pump, well.On the hydraulic fluid port A of proportional reversing valve 21 and pipeline that oil cylinder cavity below hydraulic fluid port B is connected piston respectively connects, pressure sensor 24 is installed, when hydraulic jack is weightless, pressure
The utility model closed-loop path back pressure utilizes the operating principle of hydraulic pressure twin-well oil-pumping machine to be: the piston rod of oil cylinder is connected with the pump rod of oil well bar pump, hydrostatic sensor 24 sends signal, close oil supply system, avoid piston, equipment is caused damage because of weightless high speed uplink.Hydraulic oil advances from oil inlet P during work, go out from hydraulic fluid port A then, the oil cylinder that the flow direction links to each other with hydraulic fluid port A, the jack-up piston, the piston of the oil cylinder that links to each other with hydraulic fluid port B simultaneously descends under the effect of gravity, at this moment with oil cylinder that hydraulic fluid port B links to each other in hydraulic oil reflux, B advances from hydraulic fluid port, go out from oil return inlet T then, what make that oil return flows to the work oil pump goes into the interruption-forming closed-loop path to improve oil pump inlet oil pressure, and the pressure ratio initial pressure of the hydraulic oil that back pressure is utilized is big, and the pressure of oil return can be made full use of, can reach energy-efficient purpose, it is energy-conservation more than 70% that it presses the required power ratio normal power of individual well calculating operation.Also comprise accumulator 13 between the oil return inlet T that is installed in proportional reversing valve and the oil pump inlet, play system's pressurize effect and absorb pulse energy during accumulator 13 operations, when starting and individual well operation, open fuel tank switch and throttling stop valve 20, close operational system.
Oil suction cleaner 11 is installed on oil pump 14 entrance pipes tentatively to be filtered before the oil in the fuel tank is entered pump, high pressure filter 17 in oil pump outlet and the return line filtered hydraulic oil entered oil pump with oil return before hydraulic oil enters proportional reversing valve before, to guarantee the cleaning of hydraulic oil, the application life of improving whole system.
The hydraulic pressure twin-well oil-pumping machine comprises controller (omitting among the figure), the input link position sensor 25 of controller, the output of controller is connected with proportional reversing valve 21, position sensor 25 corresponding piston rods are installed, when rising to the highest or drop to, piston rod can send signal when minimum, commutate with the action of control ratio reversal valve, realize two mouthfuls of oil well bar pumps alternate run one on the other.Pumping plant is in duty all the time, and to drive the pump rod of homonymy when up up when hydraulic power unit promotes left oil cylinder piston, and right oil cylinder piston is descending also to be finished simultaneously.Under the effect of reversal valve, it is up that hydraulic power unit begins to promote right oil cylinder piston bar drive homonymy pump rod, and left oil cylinder piston of while begins descending under the action of gravity of homonymy pump rod, thereby realizes continuous up, the descending job state that replaces of oil pumper, sees Fig. 1.The closed-loop path back pressure utilizes hydraulic system can utilize loop transport to carry out closed circulation to the oil pump inlet by back pressure the oil return energy when oil cylinder is descending, to improve oil pump inlet oil pressure, reduces the Oil pump electrical machinery power consumption by the back pressure utilization, sees Fig. 2.
Claims (10)
1. a closed-loop path back pressure is utilized the hydraulic pressure twin-well oil-pumping machine, it is characterized in that: comprise hydraulic power unit and two hydraulic jacks, described hydraulic power unit respectively connects a hydraulic jack with pipeline, hydraulic jack is installed in the oil pumper top respectively, and the piston rod of described each hydraulic jack stretches out downwards and links to each other with the pump rod of described oil pumper respectively; The hydraulic system of described hydraulic power unit comprises fuel tank, oil pump and proportional reversing valve, described proportional reversing valve has oil inlet P, oil return inlet T, hydraulic fluid port A and hydraulic fluid port B, the hydraulic fluid port A of described proportional reversing valve and oil cylinder cavity below hydraulic fluid port B is connected piston respectively, described oil pump outlet is connected in the oil inlet P of described proportional reversing valve, and the oil return inlet T of described proportional reversing valve is connected in fuel tank and is connected in described oil pump inlet by valve by valve; Oil cylinder cavity above the piston of described hydraulic jack communicates with atmospheric environment by porting.
2. hydraulic pressure twin-well oil-pumping machine according to claim 1, it is characterized in that: described fuel tank has one, and oil pump and proportional reversing valve have two covers and place oil circuit to be in state in parallel.
3. as hydraulic pressure twin-well oil-pumping machine as described in the claim 2, it is characterized in that: the oil return inlet T of described proportional reversing valve and the valve between the fuel tank are throttling stop valve.
4. as hydraulic pressure twin-well oil-pumping machine as described in the claim 3, it is characterized in that: also comprise accumulator, described accumulator is installed between the oil return inlet T of described proportional reversing valve and the described oil pump inlet on the pipeline.
5. as hydraulic pressure twin-well oil-pumping machine as described in one of in the claim 1 to 4, it is characterized in that: also comprise overflow valve, described overflow valve is installed between described oil pump outlet and the fuel tank.
6. as hydraulic pressure twin-well oil-pumping machine as described in one of in the claim 1 to 4, it is characterized in that: also comprise controller, the input link position sensor of described controller, the output of controller is connected with proportional reversing valve; Piston rod in the corresponding oil cylinder of described position sensor is installed
7. as hydraulic pressure twin-well oil-pumping machine as described in one of in the claim 1 to 4, it is characterized in that: also comprise being installed in the pilot operated valve device that plays the safeguard protection effect between proportional reversing valve and the oil cylinder.
8. as hydraulic pressure twin-well oil-pumping machine as described in one of in the claim 1 to 4, it is characterized in that: an one way valve is installed in described oil pump exit.
9. as hydraulic pressure twin-well oil-pumping machine as described in one of in the claim 1 to 4, it is characterized in that: the porting of the oil cylinder cavity above the piston of described hydraulic jack is equipped with air filter.
10. as hydraulic pressure twin-well oil-pumping machine as described in one of in the claim 1 to 4, it is characterized in that: on the pipeline of the hydraulic fluid port A of described proportional reversing valve and oil cylinder cavity below hydraulic fluid port B is connected piston respectively, pressure sensor is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206432646U CN202055807U (en) | 2010-12-06 | 2010-12-06 | Hydraulic twin-well oil pumping unit utilizing back pressure of closed loop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206432646U CN202055807U (en) | 2010-12-06 | 2010-12-06 | Hydraulic twin-well oil pumping unit utilizing back pressure of closed loop |
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| Publication Number | Publication Date |
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| CN202055807U true CN202055807U (en) | 2011-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010206432646U Expired - Fee Related CN202055807U (en) | 2010-12-06 | 2010-12-06 | Hydraulic twin-well oil pumping unit utilizing back pressure of closed loop |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758491A (en) * | 2014-01-23 | 2014-04-30 | 吉智超 | Oil-gas well twin-well ground discharging and extracting device |
| CN103953519A (en) * | 2014-05-04 | 2014-07-30 | 王翀 | Active driving bidirectional mine gas recovering system |
| CN104179476A (en) * | 2013-05-24 | 2014-12-03 | 中国石油化工股份有限公司 | Well plant interwell hydraulic balance oil pumping device and method |
| CN107859503A (en) * | 2017-12-08 | 2018-03-30 | 辽宁工程技术大学 | A kind of energy-saving Closed Hydraulic oil pumper |
| CN108301812A (en) * | 2018-04-08 | 2018-07-20 | 山东威马泵业股份有限公司 | The liquid drive beam pumping unit of liquid drive beam pumping unit and more well joint controls |
| CN109026863A (en) * | 2018-08-23 | 2018-12-18 | 吕律廷 | The hydraulic oil-field oil pumper of full hydraulic control |
| CN109488257A (en) * | 2018-12-26 | 2019-03-19 | 沈阳人和机电工程设备有限公司 | A kind of hydraulic pumping unit of pressure complementation |
-
2010
- 2010-12-06 CN CN2010206432646U patent/CN202055807U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179476A (en) * | 2013-05-24 | 2014-12-03 | 中国石油化工股份有限公司 | Well plant interwell hydraulic balance oil pumping device and method |
| CN103758491A (en) * | 2014-01-23 | 2014-04-30 | 吉智超 | Oil-gas well twin-well ground discharging and extracting device |
| CN103953519A (en) * | 2014-05-04 | 2014-07-30 | 王翀 | Active driving bidirectional mine gas recovering system |
| CN107859503A (en) * | 2017-12-08 | 2018-03-30 | 辽宁工程技术大学 | A kind of energy-saving Closed Hydraulic oil pumper |
| CN107859503B (en) * | 2017-12-08 | 2023-11-03 | 辽宁工程技术大学 | Energy-saving closed hydraulic pumping unit |
| CN108301812A (en) * | 2018-04-08 | 2018-07-20 | 山东威马泵业股份有限公司 | The liquid drive beam pumping unit of liquid drive beam pumping unit and more well joint controls |
| CN109026863A (en) * | 2018-08-23 | 2018-12-18 | 吕律廷 | The hydraulic oil-field oil pumper of full hydraulic control |
| CN109488257A (en) * | 2018-12-26 | 2019-03-19 | 沈阳人和机电工程设备有限公司 | A kind of hydraulic pumping unit of pressure complementation |
| CN109488257B (en) * | 2018-12-26 | 2024-01-05 | 沈阳人和机电工程设备有限公司 | Pressure complementary hydraulic pumping unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111130 Termination date: 20131206 |