CN201671609U - Sealed Tankless Oilfield Water Injection System with Adjustable Pressure Flow - Google Patents
Sealed Tankless Oilfield Water Injection System with Adjustable Pressure Flow Download PDFInfo
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- CN201671609U CN201671609U CN201020194044XU CN201020194044U CN201671609U CN 201671609 U CN201671609 U CN 201671609U CN 201020194044X U CN201020194044X U CN 201020194044XU CN 201020194044 U CN201020194044 U CN 201020194044U CN 201671609 U CN201671609 U CN 201671609U
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- 238000002347 injection Methods 0.000 title claims abstract description 133
- 239000007924 injection Substances 0.000 title claims abstract description 133
- 239000002332 oil field water Substances 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 266
- 239000006096 absorbing agent Substances 0.000 claims description 2
- 230000035939 shock Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 6
- 230000001276 controlling effect Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000003921 oil Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 239000010779 crude oil Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
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Abstract
本实用新型提供一种密闭无罐压流可调的油田注水系统，包括水源部分，增压部分和注水部分；水源部分包括第一水源部分，第一水源部分包括水源泵，水源泵机组和水源泵转速控制柜；水源泵转速控制柜通过控制水源泵机组的转速从而控制水源泵的出口压力和流量；增压部分包括增压泵、增压泵机组和增压泵转速控制柜；注水部分包括注水泵、注水泵机组和高压电控柜；增压泵转速控制柜通过控制增压泵机组的转速从而控制增压泵出口的压力和流量，进而控制注水泵机组；高压电控柜通过控制注水泵机组和增压泵机组的转速从而控制注水泵出口的压力和流量。其注水工艺简单，安全可靠，自控程度高，压流可调，适用于更广范围内注水的要求。
The utility model provides a closed tankless oilfield water injection system with adjustable pressure flow, which includes a water source part, a booster part and a water injection part; the water source part includes a first water source part, and the first water source part includes a water source pump, a water source pump unit and a water source Pump speed control cabinet; the water source pump speed control cabinet controls the outlet pressure and flow of the water source pump by controlling the speed of the water source pump unit; the booster part includes the booster pump, the booster pump unit and the booster pump speed control cabinet; the water injection part includes Water injection pump, water injection pump unit and high-voltage electric control cabinet; booster pump speed control cabinet controls the pressure and flow at the outlet of the booster pump by controlling the speed of the booster pump unit, and then controls the water injection pump unit; The speed of the water pump unit and the booster pump unit controls the pressure and flow at the outlet of the water injection pump. Its water injection process is simple, safe and reliable, with a high degree of self-control and adjustable pressure flow, which is suitable for water injection requirements in a wider range.
Description
技术领域technical field
本实用新型涉及压流可调的油田注水系统，特别是涉及一种密闭无罐压流可调的油田注水系统。The utility model relates to an oil field water injection system with adjustable pressure flow, in particular to a closed tankless oil field water injection system with adjustable pressure flow.
背景技术Background technique
陆地上开采石油采用注水方式，注水开采补充地层能量，是保证原油高产稳产的基础技术手段；特别是油田开发中后期，没有注水就没有原油产量。注水装置多采用离心泵和注塞泵。随着油田开采量的增加，注水量相应增加，电能的消耗大幅度增加。注水电耗已占原油生产总用电的33％-56％，注水对油田采收率、生产成本和生产效率有重大影响。目前油田已经采用了泵控泵技术，即用一台增压泵控制注水泵，增压泵的出口与注水泵的入口相联通，增压泵为注水泵提供前置压力，改善注水泵的吸入性能，它具有流量可调、功耗低、自动化程度较高的优势。Water injection is used to exploit oil on land, and water injection to supplement formation energy is the basic technical means to ensure high and stable crude oil production; especially in the middle and late stages of oilfield development, there will be no crude oil production without water injection. Water injection devices mostly use centrifugal pumps and plug pumps. With the increase of oil field production, the water injection volume increases correspondingly, and the consumption of electric energy increases greatly. The power consumption of water injection has accounted for 33%-56% of the total electricity consumption of crude oil production. Water injection has a significant impact on oil recovery, production cost and production efficiency. At present, the pump-controlled pump technology has been adopted in the oil field, that is, a booster pump is used to control the water injection pump. The outlet of the booster pump is connected to the inlet of the water injection pump. The booster pump provides the front pressure for the water injection pump to improve the suction of the water injection pump. It has the advantages of adjustable flow, low power consumption and high degree of automation.
但是传统注水装置及泵站中还包含水罐，即水罐作为水源。所需水先泵入水罐中，再由水罐进入增压调节泵管线，如此一来便造成了压力的损失；其次，水罐中的水若溶解了空气中的氧，时间一长容易造成水中细菌超标，则容易恶化水质、腐蚀注水设备，直接损害设备寿命，注入油田后甚至污染底层。However, the traditional water injection device and the pumping station also include a water tank, that is, the water tank is used as a water source. The required water is pumped into the water tank first, and then enters the booster regulating pump pipeline from the water tank, which causes a loss of pressure; secondly, if the water in the water tank dissolves the oxygen in the air, it will easily cause the water in the water to If the bacteria exceed the standard, it is easy to deteriorate the water quality, corrode the water injection equipment, directly damage the life of the equipment, and even pollute the bottom layer after injection into the oil field.
发明内容Contents of the invention
本实用新型的目的在于提供一种密闭无罐压流可调的油田注水系统，其注水工艺简单，安全可靠，自控程度高，压流可调，适用于更广范围内注水的要求。上述目的通过下述技术方案实现：The purpose of this utility model is to provide a closed tankless oil field water injection system with adjustable pressure flow, which has simple water injection process, safety and reliability, high degree of self-control, adjustable pressure flow, and is suitable for water injection requirements in a wider range. Above-mentioned purpose realizes through following technical scheme:
一种密闭无罐压流可调的油田注水系统，包括水源部分，增压部分和注水部分；三部分之间通过管线相通，其特征在于：所述水源部分包括第一水源部分，所述第一水源部分包括水源泵，水源泵机组和水源泵转速控制柜；所述水源泵机组分别与所述水源泵、所述水源泵转速控制柜电路连接；所述水源泵转速控制柜通过控制所述水源泵机组从而控制所述水源泵的出口压力和流量；所述增压部分包括增压泵，增压泵机组和增压泵转速控制柜；所述增压泵机组分别与所述增压泵、所述增压泵转速控制柜电路连接；注水部分包括注水泵、注水泵机组和高压电控柜，注水泵机组分别与注水泵、高压电控柜电 路连接；所述增压泵转速控制柜通过控制所述增压泵机组的转速从而控制所述增压泵出口的压力和流量，进而控制所述注水泵机组；所述高压电控柜通过控制所述注水泵机组和所述增压泵机组的转速从而控制所述注水泵出口的压力和流量。A closed tankless oilfield water injection system with adjustable pressure flow, including a water source part, a pressurized part and a water injection part; the three parts are connected through pipelines, and the feature is that the water source part includes a first water source part, and the second water source part A water source part includes a water source pump, a water source pump unit and a water source pump speed control cabinet; the water source pump unit is respectively connected to the water source pump and the water source pump speed control cabinet circuit; the water source pump speed control cabinet controls the The water source pump unit controls the outlet pressure and flow of the water source pump; the booster part includes a booster pump, a booster pump unit and a booster pump speed control cabinet; the booster pump unit is connected to the booster pump respectively 1. The speed control cabinet circuit of the booster pump is connected; the water injection part includes a water injection pump, a water injection pump unit and a high-voltage electric control cabinet, and the water injection pump unit is respectively connected to the water injection pump and the high-voltage electric control cabinet circuit; the speed control of the booster pump The cabinet controls the pressure and flow at the outlet of the booster pump by controlling the speed of the booster pump unit, and then controls the water injection pump unit; the high-voltage electric control cabinet controls the water injection pump unit and the booster pump unit. The rotation speed of the pump unit controls the pressure and flow at the outlet of the water injection pump.
上述目的还可以通过下述技术方案进一步完善。The above object can also be further improved through the following technical solutions.
密闭无罐压流可调的油田注水系统还包括旁通阀，所述水源部分，通过所述旁通阀和管线与所述注水部分相通。The closed tankless oilfield water injection system with adjustable pressure flow also includes a bypass valve, and the water source part communicates with the water injection part through the bypass valve and pipeline.
所述水源部分包括第二水源部分，所述第二水源部分与所述第一水源部分并联；所述第二水源部分包括第二水源泵，第二水源泵机组和第二水源泵转速控制柜；第二水源泵机组分别与所述第二水源泵转速控制柜电路连接；所述第二水源泵转速控制柜通过控制所述第二水源泵机组的转速从而控制所述第二水源泵出口的压力和流量。The water source part includes a second water source part, and the second water source part is connected in parallel with the first water source part; the second water source part includes a second water source pump, a second water source pump unit and a second water source pump speed control cabinet The second water source pump unit is respectively connected to the circuit of the second water source pump speed control cabinet; the second water source pump speed control cabinet controls the speed of the second water source pump outlet by controlling the speed of the second water source pump unit pressure and flow.
本实用新型的有益效果是：本实用新型的密闭无罐压流可调的油田注水系统，具有注水工艺简化，安全可靠，自控化程度高等特点。泵控泵技术的应用，使压流可调，从而适用于更广范围内注水井的注水需求，在一定范围内可随意适应注水管网的需求，灵活了注水方案，进一步节约了设备成本和管理成本。与一般的注水系统相比具有以下优点：The beneficial effect of the utility model is that the closed tankless oil field water injection system with adjustable pressure flow has the characteristics of simplified water injection process, safety and reliability, and high degree of automatic control. The application of pump-controlled pump technology makes the pressure flow adjustable, which is suitable for the water injection needs of water injection wells in a wider range, and can be freely adapted to the needs of the water injection pipe network within a certain range, which makes the water injection scheme flexible and further saves equipment costs and management costs. Compared with the general water injection system, it has the following advantages:
1)减小水源泵(输送泵)压力损失，使处理合格的污水直接进入增压泵进口管线，避免了注水进罐后再进增压泵管线及设备中的压力损失，降低注水单耗；1) Reduce the pressure loss of the water source pump (delivery pump), so that the treated sewage can directly enter the inlet pipeline of the booster pump, avoiding the pressure loss in the pipeline and equipment of the booster pump after water injection into the tank, and reducing the unit consumption of water injection;
2)实现密闭输水，防止空气中的氧溶解于水和罐储水时间过长，易造成的水中细菌超标，恶化水质，腐蚀注水设备，甚至污染地层；2) To achieve airtight water delivery, to prevent the oxygen in the air from dissolving in the water and the storage time of the tank is too long, which may easily cause the bacteria in the water to exceed the standard, deteriorate the water quality, corrode the water injection equipment, and even pollute the formation;
3)简化注水工艺流程；去掉储水大罐。3) Simplify the water injection process; remove the large water storage tank.
4)在保证注水压力的基础上，可以进行注水流量的调节，这样在满足注水需求的前提下，最大限度的降低了注水单耗；4) On the basis of ensuring the water injection pressure, the water injection flow rate can be adjusted, so that the unit consumption of water injection can be reduced to the greatest extent on the premise of meeting the water injection requirements;
5)高效率增压泵及变频技术的应用，提高了注水系统效率；5) The application of high-efficiency booster pump and frequency conversion technology improves the efficiency of the water injection system;
6)提高注水系统自动化水平；6) Improve the automation level of the water injection system;
7)降低维护成本，操作方便。7) Reduce maintenance costs and facilitate operation.
附图说明Description of drawings
图1是本实用新型的密闭无罐压流可调的油田注水系统的结构示意图；Fig. 1 is the structure schematic diagram of the oil field water injection system of the utility model that is closed and has adjustable pressure flow without tank;
其中，in,
水源部分：Water source part:
第一水源部分：111水源泵，112水源泵机组，113水源泵转速控制柜，114水源井；The first water source part: 111 water source pump, 112 water source pump unit, 113 water source pump speed control cabinet, 114 water source well;
第二水源部分：121输送泵，122输送泵机组，123输送泵转速控制柜；The second water source part: 121 delivery pump, 122 delivery pump unit, 123 delivery pump speed control cabinet;
增压部分：Supercharging part:
21增压泵，22增压泵机组，23增压泵转速控制柜，24入口阀，25增压泵入口流量计，26增压泵入口压力计；21 booster pump, 22 booster pump unit, 23 booster pump speed control cabinet, 24 inlet valve, 25 booster pump inlet flowmeter, 26 booster pump inlet pressure gauge;
注水部分：Water injection part:
31注水泵，32注水泵机组，33高压电控柜，34注水泵入口压力计，35注水泵出口压力计；31 Water injection pump, 32 Water injection pump unit, 33 High voltage electric control cabinet, 34 Water injection pump inlet pressure gauge, 35 Water injection pump outlet pressure gauge;
4旁通阀；4 bypass valves;
5控制柜。5 control cabinets.
具体实施方式Detailed ways
为了使本实用新型的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本实用新型的密闭无罐压流可调的油田注水系统进行进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本发明，并不用于限定本发明。In order to make the purpose, technical solution and advantages of the utility model clearer, the closed tankless oil field water injection system with adjustable pressure flow of the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
实施例一Embodiment one
如图1所示，作为一种可实施方式，本实用新型的密闭无罐压流可调的油田注水系统，包括水源部分，增压部分，注水部分和旁通阀4；一方面水源部分通过管线与增压部分相通，增压部分通过管线与注水部分相通，另一方面水源部分通过旁通阀4和管线与注水部分相通。As shown in Figure 1, as a possible implementation mode, the airtight tankless oilfield water injection system with adjustable pressure flow of the utility model includes a water source part, a pressurized part, a water injection part and a bypass valve 4; on the one hand, the water source part passes through The pipeline communicates with the pressurized part, and the pressurized part communicates with the water injection part through the pipeline. On the other hand, the water source part communicates with the water injection part through the bypass valve 4 and the pipeline.
其中，水源部分包括第一水源部分，第一水源部分包括水源泵111，水源泵机组112，水源泵转速控制柜113和水源井114，在水源泵111的输出管线上设有阀门。水源泵机组112分别与水源泵转速控制柜113电路连接，水源泵111的入口通过管线与水源井114相通，水源泵111的出口通过管线与增压部分相通。水源泵转速控制柜113通过控制水源泵机组112的转速从而控制水源泵111，使得水源泵111的出口压力和流量在一定范围内变化。Wherein, the water source part includes a first water source part, and the first water source part includes a water source pump 111, a water source pump unit 112, a water source pump speed control cabinet 113 and a water source well 114, and a valve is arranged on the output pipeline of the water source pump 111. The water source pump units 112 are respectively connected to the circuit of the water source pump speed control cabinet 113, the inlet of the water source pump 111 communicates with the water source well 114 through the pipeline, and the outlet of the water source pump 111 communicates with the booster part through the pipeline. The water source pump speed control cabinet 113 controls the water source pump 111 by controlling the speed of the water source pump unit 112 so that the outlet pressure and flow rate of the water source pump 111 vary within a certain range.
增压部分包括增压泵21，增压泵机组22，增压泵转速控制柜23，入口阀24，增 压泵入口流量计25和增压泵入口压力计26。增压泵机组22分别与增压泵转速控制柜23电路连接，增压泵21的入口4与水源部分相通的管线上设有入口阀24，增压泵入口流量计25和增压泵入口压力计26，增压泵入口压力计26用于将增压泵21入口的压力转换成电信号输出；增压泵入口流量计25用于测量增压泵21的流量，转换成电信号输出。增压泵21的出口通过管线与注水部分相通。The booster part includes a booster pump 21, a booster pump unit 22, a booster pump speed control cabinet 23, an inlet valve 24, a booster pump inlet flowmeter 25 and a booster pump inlet pressure gauge 26. The booster pump unit 22 is respectively connected to the booster pump speed control cabinet 23 circuits, the inlet 4 of the booster pump 21 is connected to the water source part, and an inlet valve 24 is arranged on the pipeline, the booster pump inlet flowmeter 25 and the booster pump inlet pressure Gauge 26, the booster pump inlet pressure gauge 26 is used to convert the pressure at the inlet of the booster pump 21 into an electrical signal output; the booster pump inlet flowmeter 25 is used to measure the flow rate of the booster pump 21 and convert it into an electrical signal output. The outlet of the booster pump 21 communicates with the water injection part through a pipeline.
注水部分包括注水泵31，注水泵机组32和高压电控柜33，注水泵机组32分别与高压电控柜33电路连接。The water injection part includes a water injection pump 31, a water injection pump unit 32 and a high-voltage electric control cabinet 33, and the water injection pump unit 32 is respectively connected with the high-voltage electric control cabinet 33 circuits.
增压泵转速控制柜23通过控制增压泵机组22的转速从而控制增压泵21，使得增压泵21的出口压力和流量在一定范围内变化，进而控制注水泵机组32。高压电控柜33和增压泵机组22通过控制注水泵机组32和增压泵机组22的转速从而控制注水泵31出口的压力和流量。The booster pump speed control cabinet 23 controls the booster pump 21 by controlling the speed of the booster pump unit 22 so that the outlet pressure and flow of the booster pump 21 vary within a certain range, and then controls the water injection pump unit 32 . The high-voltage electric control cabinet 33 and the booster pump unit 22 control the pressure and flow at the outlet of the water injection pump 31 by controlling the speeds of the water injection pump unit 32 and the booster pump unit 22 .
在注水部分和增压部分相通的管线上包括注水泵入口压力计34，注水泵入口压力计34用于将注水泵31入口的压力转换成电信号输出。在注水泵31的输出管线上设有阀门和注水泵出口压力计35。A water injection pump inlet pressure gauge 34 is included on the pipeline connecting the water injection part and the booster part. The water injection pump inlet pressure gauge 34 is used to convert the pressure at the inlet of the water injection pump 31 into an electrical signal for output. A valve and a water injection pump outlet pressure gauge 35 are provided on the output pipeline of the water injection pump 31 .
水源部分通过旁通阀4和管线与注水部分相通。即旁通阀4和增压部分是并联。The water source part communicates with the water injection part through the bypass valve 4 and the pipeline. That is, the bypass valve 4 and the supercharging part are connected in parallel.
在旁通阀4打开，入口阀24关闭时，注水泵31和水源泵111串联，根据水泵串联的使用原则(两台泵的流量相适应，压力可以不同；两台相同性能的泵串联使用时流量不变，压力相加)，即注水泵31和水源泵111的出口流量保持相等；When the bypass valve 4 is opened and the inlet valve 24 is closed, the water injection pump 31 and the water source pump 111 are connected in series. The flow rate is constant, and the pressure is added), that is, the outlet flow rates of the water injection pump 31 and the water source pump 111 remain equal;
注水泵31出口流量＝水源泵111出口流量(或总量)；Water injection pump 31 outlet flow=water source pump 111 outlet flow (or total amount);
注水泵31出口压力＝水源泵111出口压力+注水泵31出口压力；Water injection pump 31 outlet pressure = water source pump 111 outlet pressure + water injection pump 31 outlet pressure;
在旁通阀4关闭，入口阀24打开时，注水泵31，增压泵21和水源泵111串联，根据水泵串联的使用原则(两台泵的流量相适应，压力可以不同；两台相同性能的泵串联运行时，流量不变，压力相加)，即注水泵31，增压泵21和水源泵111的出口流量保持等；When the bypass valve 4 is closed and the inlet valve 24 is opened, the water injection pump 31, the booster pump 21 and the water source pump 111 are connected in series. When the pumps are running in series, the flow rate is constant and the pressure is added), that is, the outlet flow rate of the water injection pump 31, the booster pump 21 and the water source pump 111 is maintained;
注水泵31出口流量＝增压泵21出口流量＝水源泵111出口流量；Water injection pump 31 outlet flow = booster pump 21 outlet flow = water source pump 111 outlet flow;
注水泵31出口压力＝水源泵111出口压力+增压泵21出口压力+注水泵31泵压力；Water injection pump 31 outlet pressure = water source pump 111 outlet pressure + booster pump 21 outlet pressure + water injection pump 31 pump pressure;
在本实施例中，水源泵111的出口流量的供给应保证注水泵(31)的出口流量；In this embodiment, the supply of the outlet flow of the water source pump 111 should ensure the outlet flow of the water injection pump (31);
注水泵31出口压力变化的范围为：The scope of the water injection pump 31 outlet pressure variation is:
水源泵111出口压力+注水泵31泵压力到水源泵111出口压力+增压泵21出口(可调)压力+注水泵31泵压力。Water source pump 111 outlet pressure + water injection pump 31 pump pressure to water source pump 111 outlet pressure + booster pump 21 outlet (adjustable) pressure + water injection pump 31 pump pressure.
实施例二Embodiment two
实施例二包括实施例一中所有的设备，作为一种优选的实施方式，水源部分还包括第二水源部分，第二水源部分包括输送泵121，输送泵机组122和输送泵转速控制柜123。输送泵机组122分别与输送泵转速控制柜123电路连接，输送泵121的入口通过管线与污水站来水相通，输送泵121的出口通过管线与增压部分相通。输送泵转速控制柜123通过控制输送泵机组122的转速从而控制输送泵121，输送泵121的压力和流量在一定范围内变化，保证增压泵的供给。在输送泵121的输出管线上设有阀门。Embodiment 2 includes all the equipment in Embodiment 1. As a preferred embodiment, the water source part also includes a second water source part, and the second water source part includes a delivery pump 121 , a delivery pump unit 122 and a delivery pump speed control cabinet 123 . The conveying pump unit 122 is respectively connected to the electric circuit of the conveying pump speed control cabinet 123, the inlet of the conveying pump 121 communicates with the incoming water of the sewage station through the pipeline, and the outlet of the conveying pump 121 communicates with the pressurized part through the pipeline. The delivery pump speed control cabinet 123 controls the delivery pump 121 by controlling the rotation speed of the delivery pump unit 122. The pressure and flow of the delivery pump 121 vary within a certain range to ensure the supply of the booster pump. A valve is provided on the output line of the transfer pump 121 .
水源泵111和输送泵121并联。水泵并联使用原则是：两台泵的压力必须相等，流量可以不等；两台相同性能的泵并联运行时，压力不变，流量相加。The water source pump 111 and the delivery pump 121 are connected in parallel. The principle of using water pumps in parallel is: the pressure of the two pumps must be equal, and the flow rate can be unequal; when two pumps with the same performance are running in parallel, the pressure remains the same, and the flow rate is added.
在旁通阀4打开，入口阀24关闭时，水源泵111和输送泵121并联，并联的泵组与注水泵31串联，即水源泵111和输送泵121的出口压力要相等，并联的泵组应满足注水泵31的出口流量要求；When the bypass valve 4 is opened and the inlet valve 24 is closed, the water source pump 111 and the delivery pump 121 are connected in parallel, and the parallel pump set is connected in series with the water injection pump 31, that is, the outlet pressure of the water source pump 111 and the delivery pump 121 must be equal, and the parallel pump set It should meet the outlet flow requirements of the water injection pump 31;
注水泵31出口流量＝水源泵111出口流量+输送泵121出口流量；Water injection pump 31 outlet flow = water source pump 111 outlet flow + transfer pump 121 outlet flow;
注水泵31出口压力＝水源泵111出口压力(或输送泵121出口压力)+注水泵31泵压力；Water injection pump 31 outlet pressure=water source pump 111 outlet pressure (or transfer pump 121 outlet pressure)+water injection pump 31 pump pressure;
在旁通阀4关闭，入口阀24打开时，水源泵111和输送泵121并联，并联的泵组与增压泵21，注水泵31串联；即水源泵111和输送泵121的出口压力要相等，并联的泵组，增压泵21和注水泵31的出口流量要相等适应；When the bypass valve 4 is closed and the inlet valve 24 is opened, the water source pump 111 and the delivery pump 121 are connected in parallel, and the parallel pump group is connected in series with the booster pump 21 and the water injection pump 31; that is, the outlet pressures of the water source pump 111 and the delivery pump 121 should be equal , the parallel pump group, the outlet flow rate of the booster pump 21 and the water injection pump 31 should be equal;
注水泵31出口流量＝水源泵111出口流量+输送泵121出口流量；Water injection pump 31 outlet flow = water source pump 111 outlet flow + delivery pump 121 outlet flow;
注水泵31出口压力＝水源泵111出口压力(或输送泵121出口压力)+增压泵21出口压力(泵压)+注水泵31泵压力；Water injection pump 31 outlet pressure=water source pump 111 outlet pressure (or transfer pump 121 outlet pressure)+booster pump 21 outlet pressure (pump pressure)+water injection pump 31 pump pressure;
作为一种优选的实施方式，在水源泵112和输送泵122的入口处安装有过滤器，用 来过滤水。作为一种优选的实施方式，在增压泵21入口和出口的管线上分别设置有减震器。As a preferred embodiment, a filter is installed at the inlet of the water source pump 112 and the delivery pump 122 to filter water. As a preferred embodiment, shock absorbers are respectively arranged on the pipelines of the inlet and outlet of the booster pump 21 .
在本实施例中，注水泵31的出口流量变化的范围为：In this embodiment, the outlet flow rate of the water injection pump 31 varies in the following ranges:
水源泵111的出口流量到水源泵111出口流量+输送泵121出口流量，The outlet flow of the water source pump 111 to the outlet flow of the water source pump 111 + the outlet flow of the delivery pump 121,
注水泵31出口压力变化的范围为：The scope of the water injection pump 31 outlet pressure variation is:
水源泵111出口压力+注水泵31出口压力(泵压)到水源泵111出口压力+增压泵21出口压力(泵压)+注水泵31泵压力。Water source pump 111 outlet pressure + water injection pump 31 outlet pressure (pump pressure) to water source pump 111 outlet pressure + booster pump 21 outlet pressure (pump pressure) + water injection pump 31 pump pressure.
优选的，密闭无罐压流可调的油田注水系统还包括变频调速系统，包括控制柜5。控制柜5根据各仪表检测的各流量值、压力值，与设定的流量值和压力值进行比较，采用智能控制方法得到各转速控制柜的控制信号，并将这些控制信号输出到各转速控制柜，使水源泵(和/或输送泵)，增压泵和注水泵实现三泵动态平衡，从而实现对密闭无罐压流可调的油田注水系统的出水压力和流量的控制。通过对控制柜5的操作实现对水源泵转速控制柜113，输送泵转速控制柜123，增压泵转速控制柜23和高压电控柜33的控制，从而实现对水源泵112，输送泵122，增压泵22和注水泵32的控制。Preferably, the closed tankless oilfield water injection system with adjustable pressure flow also includes a frequency conversion speed regulation system, including a control cabinet 5 . The control cabinet 5 compares the flow value and pressure value detected by each instrument with the set flow value and pressure value, adopts an intelligent control method to obtain the control signals of each speed control cabinet, and outputs these control signals to each speed control cabinet. Cabinet, so that the water source pump (and/or delivery pump), booster pump and water injection pump realize the dynamic balance of the three pumps, so as to realize the control of the outlet water pressure and flow rate of the closed tankless oilfield water injection system with adjustable pressure flow. Through the operation of the control cabinet 5, the control of the water source pump speed control cabinet 113, the delivery pump speed control cabinet 123, the booster pump speed control cabinet 23 and the high-voltage electric control cabinet 33 is realized, thereby realizing the water source pump 112, the delivery pump 122, Control of booster pump 22 and water injection pump 32 .
最后应当说明的是，很显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型。Finally, it should be noted that it is obvious that those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and equivalent technologies thereof, the present invention also intends to include these modifications and variations.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102423520A (en) * | 2011-09-13 | 2012-04-25 | 陕西银河消防科技装备有限公司 | Multistage combined flow-increasing pressure-increasing device |
| CN102747992A (en) * | 2012-07-16 | 2012-10-24 | 新疆石油勘察设计研究院（有限公司） | Airtight no-tank electric control valve double-control water injection device and water injection method thereof |
| CN104941301A (en) * | 2015-06-09 | 2015-09-30 | 新乡市万和过滤技术股份公司 | Recharge filter device for geothermic water cyclic utilization |
| CN107131131A (en) * | 2017-06-08 | 2017-09-05 | 上海创丞科功水利科技有限公司 | A kind of flow equilibrium method of water pump serial-connection system |
| CN114759787A (en) * | 2022-05-23 | 2022-07-15 | 江苏迈科道环境科技有限公司 | Voltage-stabilizing constant-current control system and method for pump ship |
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2010
- 2010-05-18 CN CN201020194044XU patent/CN201671609U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102423520A (en) * | 2011-09-13 | 2012-04-25 | 陕西银河消防科技装备有限公司 | Multistage combined flow-increasing pressure-increasing device |
| CN102747992A (en) * | 2012-07-16 | 2012-10-24 | 新疆石油勘察设计研究院（有限公司） | Airtight no-tank electric control valve double-control water injection device and water injection method thereof |
| CN104941301A (en) * | 2015-06-09 | 2015-09-30 | 新乡市万和过滤技术股份公司 | Recharge filter device for geothermic water cyclic utilization |
| CN107131131A (en) * | 2017-06-08 | 2017-09-05 | 上海创丞科功水利科技有限公司 | A kind of flow equilibrium method of water pump serial-connection system |
| CN107131131B (en) * | 2017-06-08 | 2019-04-26 | 上海创丞科功水利科技有限公司 | A kind of flow equilibrium method of water pump serial-connection system |
| CN114759787A (en) * | 2022-05-23 | 2022-07-15 | 江苏迈科道环境科技有限公司 | Voltage-stabilizing constant-current control system and method for pump ship |
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