CN100410542C - Dual control automatic water injection method for pump control and pump pressure flow - Google Patents
Dual control automatic water injection method for pump control and pump pressure flow Download PDFInfo
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- CN100410542C CN100410542C CNB2006101050573A CN200610105057A CN100410542C CN 100410542 C CN100410542 C CN 100410542C CN B2006101050573 A CNB2006101050573 A CN B2006101050573A CN 200610105057 A CN200610105057 A CN 200610105057A CN 100410542 C CN100410542 C CN 100410542C
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- pressure
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- water injection
- suction booster
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Abstract
A method for automatically injecting water with pressure and flow rate being controlled by SPCP includes connecting outlet of prebooster pump A driven by frequency conversion speeder to inlet of prebooster pump B controlled by driven by frequency conversion speeder through pipeline, connecting outlet of prebooster pump B to inlet of water injection pump C through pipeline, using prebooster pump A to control flow rate of water injection pump C and using prebooster pump B to control pressure of water injection pump C for realizing both pressure and flow rate control on injection water.
Description
Technical field
The invention belongs to the non-varactor pump technical field, be specifically related to the control of pumping technology or system.
Background technique
The land recover petroleum, the oil field to replenish stratum energy, guarantees the stable production of crude oil high yield to the later stage water flooding regimes that adopt more.Water injecting device adopts multistage centrifugal pump and plunger pump more, wherein mainly adopts multistage centrifugal pump, and the working pressure major part of centrifugal pump is about 17Mpa, and pump work efficient majority is about in the of 72.1%, water filling electricity consumption unit consumption average out to 6.94kwh/m
3Along with the corresponding increase of increase water injection rate of oilfield exploitation amount, the consumption of electric energy increases considerably.The working pressure and the flow of existing flood pattern centrifugal pump are non-adjustable, shortcomings such as operational efficiency is low, energy consumption height, and also the system testing means are incomplete, and automaticity is low, can not realize automatic control, poor safety performance.Application number has changed above-mentioned condition for 200510042995.9 " the adjustable automatic water injection methods of pump control pumping pressure flow " that provide, make oil-field flooding technical a new step, but this method is defectiveness also, pressure and flow can not be regulated simultaneously, normally under the situation that ensures water injection pressure, flow is adapted, underfed in the time of so just may being formed with it, do not satisfy production requirement, flow is excessive and form waste sometimes.
Summary of the invention
The purpose of this invention is to provide a kind of new water-filling method---the two control of pump control pumping pressure flow automatic water injection method (being called for short " SPCP "), this method can overcome the shortcoming of prior art, can realize regulating simultaneously flow and pressure, and energy automatic pressure control and flow, satisfy the variation of producing.
To achieve these goals, the present invention takes following technological scheme.
Flood pattern of the present invention is by water injection pump, two preposition suction boosters, variable-frequency governor, control cabinet and be installed in water injection pump and preposition suction booster on pressure, speed probe, water pot, pipeline and cut down door, compositions such as vibration damper, the outlet of the preposition suction booster 1 of flow that is driven by flow level variable-frequency governor is connected with inlet by the preposition suction booster 2 of pressure of pressure level variable-frequency governor driving by pipeline, the outlet of the preposition suction booster 2 of pressure links by the inlet of pipeline and water injection pump, the inlet of the preposition suction booster 1 of flow links to each other with water pot, for water injection pump provides preposition pressure, improve the suction performance of water injection pump, make water injection pump in efficient district's work.The preposition suction booster 1 of flow is by variable-frequency governor and control cabinet control water injection pump rate of discharge, realize Flow-rate adjustment, the preposition suction booster 2 of pressure is controlled the water injection pump outlet pressure by variable-frequency governor and control cabinet, realization pressure is regulated, and reaches the automatic water filling of the two controls of flow pressure.
Be to realize pump control pump, it is proper to guarantee that also preposition suction booster and water injection pump mate, and preposition suction booster is to drive the balance double suction pump in exigent, its characteristic is that flow, pressure regulation range are wide, efficiently distinguish roomy, when the two controls of baric flow are regulated, always in efficient district, for flow 300m
3The water injection pump of/h, the outlet pressure of the preposition suction booster 2 of pressure is in the 0.3-1.45Mpa, flow is 200m
3/ h-360m
3/ h; For flow 400m
3The water injection pump of/h, the outlet pressure of the preposition suction booster 2 of pressure is in the 0.3-1.5Mpa, flow is 250m
3/ h-450m
3/ h; For flow 1000m
3The water injection pump of/h, preposition suction booster 2 outlet pressures of pressure are in the 1-4Mpa, flow is 700-1200m
3/ h.Specific (special) requirements also can be widened.Because the effect of preposition suction booster, multistage water injection pump can fully be demoted, and promptly removes 1-2 impeller, reaches consumption reduction, and expanding can effect.
In addition; be arranged on the inlet pressure transducer on the pipeline between preposition suction booster 1 inlet of flow and the water pot; flowmeter is arranged on the pressure transducer between preposition suction booster 1 outlet of flow and preposition suction booster 2 inlets of pressure; be arranged on the pressure transducer on preposition suction booster 2 outlets of pressure and the REDUCTION FOR INLET OF WATER FILLING PUMP road; be arranged on flow; speed probe on the preposition booster motor of pressure; be arranged on the pressure transducer in the water injection pump outlet; link to each other with control cabinet with variable-frequency governor by cable; control cabinet analog amount interface is connected with these sensors; the signal of sensor is carried out data capture; change standard signal input control cabinet into; be optimized processing; be used for the connection and the cut-out of control of electrical equipment by control cabinet; reach automatic water filling, and power distribution is shielded, improve the system automation level.On flow, the preposition suction booster inlet of pressure, outlet conduit, one group of vibration damper to be installed respectively, to be its objective is that installation precision requires and the increase tuning range in order reducing, make in its wide frequency range and stablize, do not vibrate protection pipeline proper functioning.
Compared with prior art, the present invention utilizes two preposition suction boosters, by variable-frequency governor and control cabinet, control flow rate suction booster 1 rate of discharge, thereby control water injection pump rate of discharge, by frequency control of motor speed and control cabinet pilot pressure suction booster 2 outlet pressures, thereby control water injection pump outlet pressure reaches pressure, the two control of flow purpose, and utilize sensor and control cabinet to link, with data-optimized processing, realize automatic water filling, optimize operation, improve the efficient of water injection pump, reduce power consumption, the average pump efficiency of field measurement the present invention improves 10%, and economize on electricity can effect reach 15%.
Description of drawings
Fig. 1 is a structural representation of the present invention, and the present invention is described in more detail below in conjunction with accompanying drawing and embodiment, but the invention is not restricted to these embodiments.
Embodiment
In Fig. 1; the two control of the pump control pumping pressure flow of present embodiment automatic water injection method is by the preposition suction booster 1 of flow; the preposition suction booster 2 of pressure; water injection pump 3; the flow level; pressure level variable-frequency governor 4; 5; control cabinet 6; speed probe 7; 8; flow suction booster 1 inlet pressure transducer 9; flowmeter 10; pressure suction booster 2 inlets; outlet pressure sensor 11; 12; flow suction booster 1 inlet valve 13; filter 14; water pot 15; reflux valve 16; water injection pump outlet pressure sensor 17; vibration damper constitutes; flow; the preposition suction booster 1 of pressure; 2; water injection pump 3; the flow level; pressure level variable-frequency governor 4; 5 and control cabinet 6 be installed on the basis; flow suction booster 1 inlet links by pipeline and water pot 15; filter 14 is arranged on its pipeline; inlet valve 13; pressure transducer 9; flowmeter 10 (its installation can replace); flow suction booster 1 inlet pressure transducer 9 is used to experience the pressure of flow suction booster 1 inlet water; convert standard signal output to; flowmeter 10 is used to measure the flow of flow suction booster 1 water; the outlet of flow suction booster 1 is by the inlet UNICOM of pipeline and pressure suction booster 2; the outlet of pressure suction booster 2 links by the inlet of pipeline and water injection pump 3; inlet pressure transducer 11 and outlet pressure sensor 12 are installed on the inlet pipe of pressure suction booster 2; pressure suction booster 2 inlets; outlet pressure sensor 11; 12 are used to experience the inlet of pressure suction booster 2 of flowing through; outlet pressure; convert standard signal output to; at flow; pressure suction booster 1; speed probe 7 is installed on the output shaft of 2 motors; 8; be used to experience flow; pressure suction booster 1; 2 rotating speed; convert standard signal output to; outlet pressure sensor 17 is installed on the outlet conduit of water injection pump 3; the outlet pressure sensor of water injection pump 3 is used to experience the water injection pump 3 of flowing through and goes out the pressure of saliva; convert standard signal output to; return valve 16 is installed on the pipeline that links between water injection pump 3 and the water pot; when in Pumping System During Starting Period or shutdown; from the current that water injection pump 3 outlets are flowed out, get back in the water pot 15 through the return valve 16 that is installed on the pipeline.
The motor of flow, pressure suction booster 1,2 links to each other with flow level, pressure level variable-frequency governor 4,5 by cable, flow level, pressure level variable-frequency governor 4,5 are connected with control cabinet 6 by cable, by regulating the rotating speed of flow suction booster 1, adjust the water injection pump rate of discharge, by regulating pressure suction booster 2 rotating speed of motor, regulate the outlet pressure of water injection pump, reach pilot pressure flow simultaneously, satisfy the needs that on-the-spot water filling changes.The analog amount interface of control cabinet 6 is by the inlet pressure transducer 9 of cable and flow suction booster 1; flowmeter 10; pressure suction booster 2 inlets, outlet pressure conveyer 11,12; water injection pump 3 outlet pressure sensors 17 are connected; the signal of each sensor output is input to control cabinet 6; be used for switching on or off of control of electrical equipment by control cabinet, and the distribution of electric energy is shielded.
Claims (2)
1. the two control of pump control pumping pressure flow automatic water injection methods, this system is by the preposition suction booster of flow [1], suction booster [2] before the pressure, water injection pump [3], flow level variable-frequency governor [4], pressure level frequency conversion regulator [5], control cabinet [6] constitutes, it is characterized in that by flow level variable-frequency governor [4], the outlet of the preposition suction booster of flow [1] that control cabinet [6] drives links to each other by the inlet of pipeline with the preposition suction booster of pressure [2] that is driven by pressure level variable-frequency governor [5] and control cabinet [6], the outlet of the preposition suction booster of pressure [2], the inlet by pipeline and water injection pump [3] links.
2. the two control of pump control pumping pressure flow according to claim 1 automatic water injection method, it is characterized in that the preposition suction booster of flow [1], the speed probe [7] of the preposition suction booster of pressure [2], [8], inlet, outlet pressure sensor [9], [11], flowmeter [10], water injection pump [3] outlet pressure sensor [17] links by cable and flow level variable-frequency governor [4], pressure level variable-frequency governor [5] and control cabinet [6].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101050573A CN100410542C (en) | 2006-08-28 | 2006-08-28 | Dual control automatic water injection method for pump control and pump pressure flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101050573A CN100410542C (en) | 2006-08-28 | 2006-08-28 | Dual control automatic water injection method for pump control and pump pressure flow |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1916428A CN1916428A (en) | 2007-02-21 |
| CN100410542C true CN100410542C (en) | 2008-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101050573A Expired - Fee Related CN100410542C (en) | 2006-08-28 | 2006-08-28 | Dual control automatic water injection method for pump control and pump pressure flow |
Country Status (1)
| Country | Link |
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| CN (1) | CN100410542C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101988515A (en) * | 2009-07-30 | 2011-03-23 | 上海新沪电机厂有限公司 | Automatic anhydrous protection control method for pipeline canned motor pump |
| CN102278100B (en) * | 2011-06-01 | 2014-07-02 | 中国石油天然气股份有限公司 | Constant flow control device and method for high-pressure water injection well |
| CN111043047B (en) * | 2019-12-03 | 2022-02-11 | 温州大学 | Method for distinguishing running section of parallel variable-frequency constant-voltage control system |
| CN111577227B (en) * | 2020-05-06 | 2021-03-05 | 宁夏铭盛能源科技有限公司 | Linkage control method for oil field water source well and water supply and injection station |
| CN116146156B (en) * | 2023-04-04 | 2023-06-30 | 大庆信海越石油科技开发有限公司 | Flow control equipment and control method for water injection well |
Citations (2)
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|---|---|---|---|---|
| CN2538987Y (en) * | 2002-04-02 | 2003-03-05 | 西安石油学院 | Pump-controlled adjustable pumping pressure flow automatic water injecting device |
| CN1737377A (en) * | 2005-07-27 | 2006-02-22 | 西安石油大学 | Automatic water injection method using pump-control-pump to adjust pressure and flow |
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2006
- 2006-08-28 CN CNB2006101050573A patent/CN100410542C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2538987Y (en) * | 2002-04-02 | 2003-03-05 | 西安石油学院 | Pump-controlled adjustable pumping pressure flow automatic water injecting device |
| CN1737377A (en) * | 2005-07-27 | 2006-02-22 | 西安石油大学 | Automatic water injection method using pump-control-pump to adjust pressure and flow |
Non-Patent Citations (6)
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| 双泵串联技术在注水泵站的应用. 程为彬，吴九辅.水泵技术，第4期. 2005 |
| 双泵串联技术在注水泵站的应用. 程为彬，吴九辅.水泵技术，第4期. 2005 * |
| 基于前置增压泵压力和流量可调性注水技术的应用. 程为彬，吴九辅.石油学报，第26卷第4期. 2005 |
| 基于前置增压泵压力和流量可调性注水技术的应用. 程为彬，吴九辅.石油学报，第26卷第4期. 2005 * |
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| Publication number | Publication date |
|---|---|
| CN1916428A (en) | 2007-02-21 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shaanxi Tiancheng Petrochemical Equipment Co., Ltd. Assignor: Wu Jiufu Contract fulfillment period: 2009.5.1 to 2026.8.26 contract change Contract record no.: 2009610000056 Denomination of invention: Dual control automatic water injection method for pump control and pump pressure flow Granted publication date: 20080813 License type: Exclusive license Record date: 20091125 |
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Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.5.1 TO 2026.8.26; CHANGE OF CONTRACT Name of requester: SHAANXI TIANCHENG PETROCHEMICAL EQUIPMENT CO., LTD Effective date: 20091125 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080813 Termination date: 20140828 |
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| EXPY | Termination of patent right or utility model |