CN102094608B - Automatic water power pressure adjustment system - Google Patents
Automatic water power pressure adjustment system Download PDFInfo
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- CN102094608B CN102094608B CN200910242459.1A CN200910242459A CN102094608B CN 102094608 B CN102094608 B CN 102094608B CN 200910242459 A CN200910242459 A CN 200910242459A CN 102094608 B CN102094608 B CN 102094608B
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Abstract
The invention belongs to the technical field of oil exploitation equipment, and particularly relates to an automatic water power pressure adjustment system which is used for injecting water into oil wells. The automatic water power pressure adjustment system comprises a water injection system and an oil line control system; the water injection system comprises a water pumping system, a working gap opening and closing control system, a pressure adjustment system and an injection system which are connected in turn; the oil line control system comprises an oil pumping system, an energy storage system, a pressure control system, a pilot system, a hydraulic control system and an oil storage system; the oil pumping system, the pilot system and the hydraulic control system are connected with one another sequentially; the energy storage system and the pressure control system are arranged between the oil pumping system and the pilot system; and the oil pumping system, the energy storage system and the pilot system are communicated with the oil storage system respectively. In the automatic water power pressure adjustment system, the oil line control system is used for automatically controlling the water injection system, so that the water injection system has stronger reliability and stability during water injection of high and low pressure wells; therefore, the service life of machines is prolonged, the energy consumption is reduced and the water injection effect is better.
Description
Technical field
The invention belongs to oil exploration equipment technical field, be specifically related to the automatic water power pressure adjustment for flushing.
Background technology
In oil extraction in oil field process, for crude oil is become out between the gap of subterranean strata, often need to water filling in oil well.And pressure in different oil wells is different, have height to have low, so desired water injection pressure is also not quite similar during water filling, high-pressure well needs higher pressure could realize water filling, and low pressure well does not need too high pressure.Traditional method for flushing is to adopt high-pressure pump to carry out water filling to high-pressure well, in order to make high-pressure pump carry out water filling to low pressure well simultaneously, conventionally by valve throttle, controls the method for flow and carries out.For hydraulic pressure is improved, can realize the more well water filling of high pressure, the very large water pump of required power often, so energy consumption is very large; Meanwhile, adopt high-pressure pump to the way of low pressure well water filling, also can cause serious energy huge waste, and flood effectiveness is also bad, to causing inconvenience in exploitation work.
The above technical problem of pin, has the pressure of technology utilization water inlet self, adopts voltage regulation cylinder, water oil energy converter, solenoid operated directional valve etc. to control water injection manifold, to realizing the object of hydraulic automatism pressure regulation water filling.But this technology is realized and is utilized hydraulic pressure to pressurize to oil circuit by water oil energy converter, by the conversion of oil circuit pressure, control bridge-type plug-in type valve member again and realize the conversion of importing and exporting water route, although this way has utilized hydraulic pressure to pressurize from trend oil circuit, but there is very large defect: the one, the technical scheme of complete oil circuit control is not disclosed in this patented technology scheme, in practice, according to the description of this patent, cannot realize the continuous circulation work of oil circuit control, the 2nd, water and the oily power fluid of leakage not only cause waste, and can be to environment, the 3rd, can not provide steady connection fixed control oil pressure, cause the unstable of water filling work, the 4th, the easy corrosion pipeline of aqueous medium, the work that affects oil circuit is often worked.
Summary of the invention
In order to solve deficiency of the prior art, the invention provides the water route that a kind of circulating oil path control system is controlled water filling, utilize the one-level pumping plant realization of fixation pressure to stablize the flood pattern of the hydraulic automatism pressure regulation of water filling to high-pressure well and low pressure well simultaneously.
For achieving the above object, technical scheme of the present invention is: automatic water power pressure adjustment, comprise flood pattern, and described flood pattern comprises pumping system, working hole on-off control system, pressure regulating system, described working hole on-off control system comprises the hydraulic control one-way valve of a, b, c, tetra-docking of d, two working holes, a water inlet and a delivery port, described pressure regulating system comprises A chamber, B chamber, C chamber, four, D chamber working chamber and exchange system, the import and export in described A chamber and D chamber are connected with the import of two output one-way valves with the outlet of two input one way valves respectively, the entrance of two input one way valves connects pumping system, the outlet of two output one-way valves connects high-pressure well water injection pipe, described B chamber is connected with two working holes of described working hole on-off control system respectively with C chamber, the water inlet of described working hole on-off control system is connected with pumping system, the delivery port of working hole on-off control system connects low pressure well water injection pipe, described automatic water power pressure adjustment also comprises circulating oil path control system and PLC control system, described circulating oil path control system is by oil pumping system, pilot system, working hole on-off control system, hold oil system and oil pumping system connects to form successively, described pilot system comprises two guide's electronics ball valves, described two guide's electronics ball valves are respectively equipped with oil inlet passage and oil drain passage, the oil-in of described oil inlet passage is connected with oil pumping system, the oil-out of oil inlet passage respectively with the hydraulic control one-way valve a of described working hole on-off control system, c and b, d connects, the oil-in of described oil drain passage respectively with the hydraulic control one-way valve a of described working hole on-off control system, c and b, d connects, the oil-out of oil drain passage with hold oil system and be connected, when the oil inlet passage of guide's electronics ball valve, connect, its oil drain passage is closed, and now, the oil drain passage of another guide's electronics ball valve is connected, and its oil inlet passage is closed, described PLC control system receives the commutation signal of exchange system, controls guide's electronics ball valve guiding of pilot system.
Between described oil pumping system and pilot system, be provided with oil transportation one way valve, be provided with energy-storage system and oil pressure monitoring system between oil transportation one way valve and pilot system, described oil pressure monitoring system is by the switch of PLC control system control pump oil system.
Described exchange system comprises two approach switchs, and two approach switchs are separately positioned on the A chamber of described pressure regulating system and the end in D chamber.
Described pressure regulating system is fluid power voltage regulation cylinder, and described fluid power voltage regulation cylinder is single or multiple parallel connections.
Between described oil pumping system and oil transportation one way valve, be provided with overflow valve, described overflow valve with hold oil system and be connected.
Described pilot system and energy-storage system, pilot system and hold and between oil system, be respectively equipped with choke valve.
Described energy-storage system and holding between oil system by a grease interceptor is connected.
The described oil system that holds is provided with strainer, content gauge, temperature pick up and heater, and described temperature pick up is connected with heater by PLC system.
Described PLC control system is single-chip microcomputer.
Compared with prior art, beneficial effect of the present invention shows as: owing to having adopted the independently water route of circulating oil path control system to water filling, make flood pattern stronger in the reliability and stability toward high and low kill-job water filling, extended the application life of machine, saved energy consumption simultaneously; Flood effectiveness is better, and non-pollutant discharge.
Accompanying drawing explanation
Fig. 1 is operating principle schematic diagram of the present invention.
In figure, 1-oil pump, 2-overflow valve, 3-motor, 4-strainer, 5-content gauge, 6-fuel tank, 7-air filter, 8-oil transportation one way valve, 9-temperature pick up, 10-grease interceptor, 11-choke valve, 12-guide's electronics ball valve, 13-oil drain passage, 14-oil inlet passage, a-hydraulic control one-way valve a, b-hydraulic control one-way valve b, c-hydraulic control one-way valve c, d-hydraulic control one-way valve d, the water inlet of 15-working hole on-off control system, the working hole of 16-working hole on-off control system, the delivery port of 17-working hole on-off control system, P-pumping system, P1-low pressure well, P2-high-pressure well, A, B, C, D-is respectively the A chamber of pressure regulating system, B chamber, C chamber and D chamber, 19-pressure meter, 20-pressure sensor, 21-accumulator, 22-inputs one way valve, 23-output one-way valve, 24-approach switch, 25-piston, 26-slider.
The specific embodiment
The operating principle schematic diagram that is automatic water power pressure adjustment of the present invention referring to Fig. 1.
The present invention includes pumping system, working hole on-off control system, pressure regulating system.Working hole on-off control system comprises hydraulic control one-way valve, 16, one water inlets 15 of two working holes and a delivery port 17 of a, b, c, tetra-docking of d, pressure regulating system comprises A chamber fluid power voltage regulation cylinder 27 being divided into by piston 25 and slider 26, B chamber, C chamber, four, D chamber working chamber independent of each other and exchange system, exchange system is two approach switchs 24 that are fixed on A chamber and the end, D chamber of pressure regulating system, the import and export in A chamber and D chamber are connected with the import of two output one-way valves 23 with the outlet of two input one way valves 22 respectively, the entrance of two input one way valves 22 connects pumping system P, the outlet of two output one-way valves 23 connects the water injection pipe of high-pressure well P2, B chamber is connected with two working holes 16 of working hole on-off control system respectively with C chamber, the water inlet 15 of working hole on-off control system is connected with pumping system P, the delivery port 17 of working hole on-off control system connects the water injection pipe of low pressure well P1.
Automatic water power pressure adjustment also comprises circulating oil path control system and PLC control system.Circulating oil path control system by oil pumping system, pilot system, working hole on-off control system, hold oil system and oil pumping system connects to form successively.Oil pumping system comprises oil pump 1, overflow valve 2, motor 3 and oil transportation one way valve 8, and motor 3 drives oil pumps, oil pumping from hold the fuel tank 6 of oil system, and by oil by oil transportation one way valve 8 input pilot systems with hold oil system.Hold oil system and adopt energy storage tank 21.Between energy storage tank 21 pilot systems, be provided with oil transportation one way valve 8, between oil transportation one way valve 8 and pilot system, be provided with energy storage tank 21 and oil pressure monitoring system, oil pressure monitoring system is comprised of pressure sensor 20 and pressure meter 19, by the switch of PLC control system control pump oil system.
Pilot system comprises two guide's electronics ball valves 12, two guide's electronics ball valves 12 are respectively equipped with oil inlet passage 14 and oil drain passage 13, the oil-in of oil inlet passage 14 is connected with oil pumping system, the oil-out of oil inlet passage 14 is connected with b, d with hydraulic control one-way valve a, the c of working hole on-off control system respectively, the oil-in of oil drain passage 13 is connected with b, d with hydraulic control one-way valve a, the c of working hole on-off control system respectively, and the oil-out of oil drain passage 13 is connected with the fuel tank 6 that holds oil system; When the oil inlet passage of guide's electronics ball valve 12, connect, its oil drain passage is closed, and now, the oil drain passage of another guide's electronics ball valve 12 is connected, and its oil inlet passage is closed; PLC control system receives the commutation signal of the approach switch 24 of exchange system, controls guide's electronics ball valve guiding of pilot system.
Between the delivery port 17 of working hole on-off control system and low pressure well P1 water injection pipe, be provided with a water filling one way valve, the delivery port of water filling one way valve is connected with low pressure well P1, between water inlet and the delivery port 17 of working hole on-off control system, is provided with energy storage tank.Pressure regulating system is fluid power voltage regulation cylinder, and fluid power voltage regulation cylinder is single casing, twin-tub is parallel or three cylinders are parallel.Between described oil pumping system and oil transportation one way valve 8, be provided with overflow valve 2, overflow valve 2 with hold oil system fuel tank 6 and be connected.Pilot system and energy-storage system, pilot system and hold and between oil system, be respectively equipped with choke valve 11.Energy-storage system and holding between oil system by a grease interceptor 10 is connected.The fuel tank 6 that holds oil system is provided with strainer 4, content gauge 5, air filter 7, temperature pick up 9 and heater, and temperature pick up 9 is connected with heater by PLC system.Described PLC control system is single-chip microcomputer.
Automatic water power pressure adjustment flow process of the present invention is: motor 3 drives oil pump 1, oil pumping from fuel tank 6, by oil transportation one way valve 8, guide's electronics ball valve 12 by from oil pump to pilot system, if oil pressure is too high in oil circuit, oil can overflow from the overflow valve 2 being located between oil pump 1 and oil transportation one way valve 8, by the strainer 4 on fuel tank 6, flows back to fuel tank 6, the oil of process oil transportation one way valve 8 is when oil pressure is too high, cannot pass back into fuel tank, therefore between oil transportation one way valve 8 and guide's electronics ball valve 12, be provided with energy storage tank 21, be used for accumulating unnecessary oil circuit energy, between energy storage tank 21 and guide's electronics ball valve 12, be provided with the oil pressure monitoring system being formed by pressure sensor 20 and pressure meter 19, when in oil circuit, oil pressure is excessive, on pressure meter 19, can show, simultaneously, this force value can be passed to PLC control system by pressure sensor 20, PLC control system is received after the too high signal of oil pressure, send instruction disable motor 3, stop pump oil, now, with energy storage tank 21, to oil circuit, provide oil pressure, when equal pressure is less than operating pressure, pressure sensor 20 again to PLC control system transmission of information with starter motor 3, continuation is to oil circuit pump oil.
Two guide's electronics ball valves 12 are in different duties, and when the oil-in of the oil inlet passage 14 of a first electronics ball valve 12 is communicated with oil pumping system, when its oil-out is communicated with working hole on-off control system, its oil drain passage 13 is in closed state; And now the oil drain passage 13 of another one guide electronics ball valve 12 is communicated with working hole on-off control system and fuel tank 6, the oil in oil circuit is entered in fuel tank 6.Under the control of PLC control system, the duty of two electronics ball valves can not be switched with stopping, realizes alternately connecting and sealing of two guide's electronics ball valve oil inlet passages 14 and oil drain passage 13.
If when the oil inlet passage of guide's electronics ball valve 12 14 is connected, the hydraulic control one-way valve a of working hole on-off control system, c closes under the effect of oil circuit pressure, now, the oil drain passage of another guide's electronics ball valve 12 and the hydraulic control one-way valve b of working hole on-off control system, the residing oil circuit of d is connected, hydraulic control one-way valve b, oil in the residing oil circuit of d passes through the oil drain passage of guide's electronics ball valve 12 discharged to fuel tank, make hydraulic control one-way valve b, the oil pressure of the suffered oil circuit of d disappears, hydraulic control one-way valve b, d opens, now, the water that pumping system P pumps into the water inlet 15 of working hole on-off control system flows to through hydraulic control one-way valve b the C chamber that pressure is established joint system, now C chamber is for carrying out water cavity, and B chamber is communicated with low pressure well P1 by hydraulic control one-way valve d, now B chamber is low pressure chamber, A chamber, D chamber and pumping system P are always in connected state, the C chamber that now piston 25 is subject to and the pressure sum in A chamber are greater than piston 25 and are subject to the pressure from D chamber and B chamber, piston 25 moves right, movement along with piston 25, the pressure in D chamber increases, the pump water pressure 15-20MPa of common pumping system ground confession, the pressure in D chamber increases to pump water pressure 1-1.5 doubly by meeting, when this pressure is greater than the pressure of high-pressure well P2, the water in D chamber will inject high-pressure well P2 by output one-way valve 23, now B chamber is low pressure chamber, its hydraulic pressure is generally 0-0.5 times of pump water pressure, the water in B chamber injects low pressure well P1, when piston 25 is close to the end in D chamber, while arriving the set approach switch 24 in end, D chamber, approach switch 24 sends to PLC control system by the signal sensing, PLC control system is sent transfer order to guide's electronics ball valve 12 of pilot system immediately, two electronics ball valves are switch operating state immediately, the open and-shut mode of its oil drain passage and oil inlet passage switches immediately, make hydraulic control one-way valve b, d closes under the effect of oil circuit pressure, make hydraulic control one-way valve a, c opens, now B chamber is communicated with pumping system by the hydraulic control one-way valve a opening, B chamber becomes and carrys out water cavity, C chamber is communicated with low pressure well P1 by the hydraulic control one-way valve c opening, C chamber becomes low pressure chamber, now piston 25 is to reverse movement, the water pressure in A chamber raises, when the hydraulic pressure in A chamber is greater than the pressure of high-pressure well, the water in A chamber injects high-pressure well by output one-way valve 23, the water in C chamber enters low pressure well P1 simultaneously, when piston 25 moves to the end in A chamber, when the approach switch 24 of end, A chamber senses piston 25, approach switch 24 sends to PLC control system by the signal sensing, PLC control system is sent transfer order to guide's electronics ball valve 12 of pilot system immediately, two electronics ball valves are switch operating state again immediately, piston 25 is just again to reverse movement, so repeatedly realize high-pressure well P2 and low pressure well P1 water filling simultaneously.
Claims (9)
1. automatic water power pressure adjustment, comprises flood pattern, and described flood pattern comprises pumping system, working hole on-off control system, pressure regulating system, described working hole on-off control system comprises the hydraulic control one-way valve of a, b, c, tetra-docking of d, two working holes, a water inlet and a delivery port, described pressure regulating system comprises A chamber, B chamber, C chamber, four, D chamber working chamber and exchange system, the import and export in described A chamber and D chamber are connected with the import of two output one-way valves with the outlet of two input one way valves respectively, the entrance of two input one way valves connects pumping system, the outlet of two output one-way valves connects high-pressure well water injection pipe, described B chamber is connected with two working holes of described working hole on-off control system respectively with C chamber, the water inlet of described working hole on-off control system is connected with pumping system, the delivery port of working hole on-off control system connects low pressure well water injection pipe, it is characterized in that: described automatic water power pressure adjustment also comprises circulating oil path control system and PLC control system, described circulating oil path control system is by oil pumping system, pilot system, working hole on-off control system, hold oil system and oil pumping system connects to form successively, described pilot system comprises two guide's electronics ball valves, be respectively first guide's electronics ball valve and second guide's electronics ball valve, described two guide's electronics ball valves are respectively equipped with oil inlet passage and oil drain passage, the oil-in of the oil inlet passage of described two guide's electronics ball valves is connected with oil pumping system, the wherein oil-out of the oil inlet passage of first guide's electronics ball valve and the hydraulic control one-way valve a of described working hole on-off control system, c connects, the oil-out of the oil inlet passage of second guide's electronics ball valve and the hydraulic control one-way valve b of described working hole on-off control system, d connects, the oil-in of the oil drain passage of described first guide's electronics ball valve and the hydraulic control one-way valve a of described working hole on-off control system, c connects, the oil-in of the oil drain passage of second guide's electronics ball valve and the hydraulic control one-way valve b of described working hole on-off control system, d connects, the oil-out of the oil drain passage of two guide's electronics ball valves with hold oil system and be connected, when the oil inlet passage of guide's electronics ball valve, connect, its oil drain passage is closed, and now, the oil drain passage of another guide's electronics ball valve is connected, and its oil inlet passage is closed, described PLC control system receives the commutation signal of exchange system, controls guide's electronics ball valve guiding of pilot system.
2. automatic water power pressure adjustment according to claim 1, it is characterized in that: between described oil pumping system and pilot system, be provided with oil transportation one way valve, between oil transportation one way valve and pilot system, be provided with energy-storage system and oil pressure monitoring system, described oil pressure monitoring system is by the switch of PLC control system control pump oil system.
3. automatic water power pressure adjustment according to claim 1, is characterized in that: described exchange system comprises two approach switchs, and two approach switchs are separately positioned on the A chamber of described pressure regulating system and the end in D chamber.
4. automatic water power pressure adjustment according to claim 1, is characterized in that: described pressure regulating system is fluid power voltage regulation cylinder, and described fluid power voltage regulation cylinder is single or multiple parallel connections.
5. automatic water power pressure adjustment according to claim 2, is characterized in that: between described oil pumping system and oil transportation one way valve, be provided with overflow valve, described overflow valve with hold oil system and be connected.
6. automatic water power pressure adjustment according to claim 2, is characterized in that: described pilot system and energy-storage system, pilot system and hold and between oil system, be respectively equipped with choke valve.
7. automatic water power pressure adjustment according to claim 2, is characterized in that: described energy-storage system and holding between oil system is connected by a grease interceptor.
8. automatic water power pressure adjustment according to claim 2, is characterized in that: described in hold oil system and be provided with strainer, content gauge, temperature pick up and heater, described temperature pick up is connected with heater by PLC system.
9. automatic water power pressure adjustment according to claim 2, is characterized in that: described PLC control system is single-chip microcomputer.
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| CN200910242459.1A CN102094608B (en) | 2009-12-14 | 2009-12-14 | Automatic water power pressure adjustment system |
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| CN200910242459.1A CN102094608B (en) | 2009-12-14 | 2009-12-14 | Automatic water power pressure adjustment system |
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| CN102094608A CN102094608A (en) | 2011-06-15 |
| CN102094608B true CN102094608B (en) | 2014-03-05 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| RU2491419C1 (en) * | 2012-03-23 | 2013-08-27 | Открытое акционерное общество "Татнефть" имени В.Д. Шашина | Method for cluster pumping of water into bed under negative temperatures |
| CN108087258A (en) * | 2017-12-29 | 2018-05-29 | 中国石油大学(华东) | A kind of automatic Regulation water injecting pump energy-saving control system and water filling adjusting method |
| CN111677490B (en) * | 2020-06-19 | 2023-07-14 | 中国铁建重工集团股份有限公司 | Control system of dual-purpose drilling machine for water hammer and core drill and multifunctional drilling machine |
| CN111963117B (en) * | 2020-09-08 | 2022-07-05 | 中国石油天然气股份有限公司 | Downhole choke and control method thereof |
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| US4077428A (en) * | 1976-01-29 | 1978-03-07 | Dale Weaver, Inc. | Transportable water injection plant |
| CN2324284Y (en) * | 1998-02-10 | 1999-06-16 | 马莉 | Automatic hydraulic pressure booster |
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