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Water Injection Pump

The Water Injection Pump is a professional high-pressure fluid pressurization and conveying core equipment specially developed for oilfield water flooding and reservoir pressure maintenance. Manufactured in strict accordance with API 610 and API 674 international petroleum industry standards, the product covers two mainstream structural types: multistage centrifugal water injection pump and high-pressure plunger water injection pump, fully adapting to low-flow high-pressure and high-flow medium-pressure oilfield water injection working conditions. The whole unit integrates optimized hydraulic flow channel, high-strength pressure-resistant shell, precision transmission system, reliable sealing assembly and intelligent pressure control module. It is mainly used for pressurized reinjection of formation water, produced water, treated sewage and seawater, steadily supplementing formation pressure, compensating reservoir energy decline and improving crude oil recovery rate. Adopting heavy-duty continuous industrial design, all core components are optimized for anti-corrosion, anti-abrasion and anti-cavitation performance, effectively adapting to high-salinity, impurity-containing and slightly corrosive water medium in oilfields. Fully applicable to extreme harsh environments such as desert high temperature, Gobi wind-sand, muddy well sites and high-altitude cold plateaus, the water injection pump provides long-term stable and efficient fluid pressurization solutions for onshore oil and gas field secondary oil recovery, tertiary oil recovery and daily reservoir maintenance projects.

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Core advantages

Designed around the operating requirement.

Dual Structural Type Coverage & Full Working Condition Adaptation

This product series includes multistage centrifugal water injection pumps and reciprocating plunger water injection pumps. Centrifugal pumps feature large flow, stable operation and high efficiency, suitable for conventional large-scale cluster well group water flooding; plunger pumps deliver ultra-high pressure, low pulsation and precise flow output, perfectly matching deep well and ultra-deep well high-pressure water injection demands. Dual model coverage realizes full-scene adaptation of oilfield water injection processes.

Excellent Anti-Cavitation & Anti-Corrosion Performance

Optimized impeller flow channel design effectively eliminates cavitation and turbulent impact during high-speed fluid conveying, improving operational stability. Wetted parts can be customized with 316L stainless steel, duplex steel and Hastelloy materials, cooperating with multi-layer anti-corrosion coating. It effectively resists erosion of high-salinity produced water, trace hydrogen sulfide and impurity-containing media, avoiding internal scaling and component corrosion damage.

High Efficiency & Long-Term Continuous Operation Stability

The hydraulic system adopts advanced fluid simulation optimization, with overall pumping efficiency up to 96% and above. The reinforced integral shell and precision bearing transmission structure reduce operational vibration and mechanical loss. The whole machine supports 24/7 long-term uninterrupted continuous operation, meeting the long-cycle and high-intensity working characteristics of oilfield water injection stations, greatly reducing frequent equipment shutdown and maintenance losses.

Precise Pressure & Flow Intelligent Regulation

Matched with variable frequency speed regulation and PLC centralized control system, it realizes stepless adjustable water injection pressure and flow. It can intelligently adapt to dynamic changes of reservoir pressure and water injection volume, ensuring uniform and stable water injection in each well group, avoiding formation damage caused by excessive pressure or insufficient energy supplement caused by low pressure, and improving overall water flooding development effect.

Full-Climate Harsh Environment Resistance

Core transmission, hydraulic and electrical components adopt wide-temperature anti-aging and sealed dust-proof configuration. The whole machine supports stable operation within -40℃ ~ +55℃. The professional sand-proof, rain-proof and weather-resistant structure adapts to desert wind-sand erosion, high-altitude low-pressure and humid muddy well site environments, realizing all-climate and all-weather stable water injection operation.

Complete Safety Protection & Low Comprehensive Cost

Equipped with over-pressure protection, overload shutdown, water shortage protection, low lubrication alarm and leakage monitoring functions, with built-in pressure relief fail-safe mechanism to eliminate pipeline bursting and equipment damage risks. The modular assembly structure simplifies daily inspection and wearing parts replacement, featuring low failure rate and convenient maintenance, effectively reducing long-term operation and maintenance costs of oilfield water injection systems.

Product Overview
Product	Water Injection Pump
Product line	Assembly Parts

Technical Specifications
model	MPa Suction pressure	Mm stroke	Rpm Pump speed	KW Motor power	mm Plunger dia.	m3/h Theoretical displacement	MPa Outlet pressure
ZJ3GY125	0.03~1.5	125	260	55~110	28~56	4~15	16~55
ZJ3GY125A		127	370	55~110	35~57	8~36	13~44
ZJ5GY125A		127	370	185	35~57	13~36	16~42
ZJ3ZY125	12~18	125	230	55~75	35~56	5~12.5	30~68
ZJ3ZY125A	12~18	127	370	90~110	38~57	10~22	18~52
ZJ3GY175	0.03~1.5	177	240	185	35~45	7~12	40~62
ZJ3ZY175	15	177	235	110	40~54	9.5~18	32~58

Application

Where this equipment is used.

Continuous pressurized water injection for conventional oil and gas reservoirs to supplement formation energy and stabilize well production
High-pressure water flooding operation for deep and ultra-deep wells to meet high-pressure reservoir development requirements
Reinjection and cyclic utilization of oilfield produced water, treated sewage and qualified surface water
Intelligent water distribution and pressure regulation for large-scale cluster well groups and centralized water injection stations
Auxiliary pressurized water supply for oilfield well washing, pipeline cleaning and reservoir stimulation operations
Long-term stable water injection service for desert, Gobi and high-altitude cold oilfield harsh working environments

Next step

Send the operating requirement.

For a useful technical response, include the target well conditions, operating depth or pressure, expected quantity, destination and any required configuration.

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Configuration

Options for a matched equipment scope.

Available configurations can be matched to the equipment model, operating conditions and project requirements.

Customize pump type, flow grade and working pressure to match different reservoir depths and water injection process parameters
Upgrade high-grade anti-corrosion and wear-resistant materials for high-salinity and sour water medium working conditions
Equip full intrinsically-safe explosion-proof electrical system to meet Class 0 hazardous oilfield zone safety standards
Install low-temperature quick-start and cabin heat preservation assembly for severe cold plateau regional operation
Add intelligent remote monitoring, cloud data transmission and automatic pressure stabilization control system
Configure automatic backflush filtering device and scale inhibition module to reduce pipeline scaling and equipment wear
Customize enhanced sand-proof, dust-proof and aging-resistant coating for long-term outdoor harsh well-site service

Buyer questions

Frequently asked about this equipment.

The following questions address common equipment selection and operating considerations.

What is the core function of Water Injection Pump in oilfield development?

The water injection pump is the key core equipment for oilfield secondary and tertiary oil recovery. It pressurizes qualified water media and injects them into the reservoir to supplement declining formation pressure, maintain stable crude oil production, effectively improve reservoir recovery rate and extend the service life of oil and gas fields.

What is the difference between centrifugal and plunger water injection pumps?

Centrifugal water injection pumps feature large flow and high operational efficiency, suitable for conventional medium-pressure and large-flow water injection of shallow and medium wells. Plunger water injection pumps provide ultra-high pressure and precise flow control, applicable to high-pressure water injection of deep and ultra-deep wells with strict pressure requirements.

Can the pump adapt to oilfield impurity-containing and high-salinity water media?

Yes. We support customized high-grade corrosion-resistant and wear-resistant wetted materials. The optimized flow channel structure prevents impurity deposition and scaling, effectively resisting corrosion of high-salinity water and slight sour media, adapting to complex oilfield water quality conditions.

How to ensure long-term stable and energy-saving operation?

The whole machine adopts high-efficiency hydraulic design and low-loss transmission structure, with high overall energy efficiency. Equipped with variable frequency intelligent regulation system, it automatically adjusts operating parameters according to water injection demand to avoid idle and overload operation. Complete safety protection mechanisms ensure long-cycle stable operation and reduce energy consumption and maintenance costs.

Can working parameters and functional configurations be customized?

Yes. We support personalized customization of pump type, flow pressure grade, wetted materials, control mode, explosion-proof grade and auxiliary functional modules, matching different oilfield reservoir characteristics, water quality conditions and safety operation specifications.

Supplier context

Why this product is considered.

We provide professional API-standard Oilfield Water Injection Pump with independent R&D and standardized manufacturing capabilities, fully compliant with international petroleum industry specifications. Our products cover dual structural types to meet full-scene oilfield water injection demands, featuring high efficiency and energy saving, excellent anti-corrosion and anti-cavitation performance, stable intelligent regulation and strong harsh environment adaptability. The heavy-duty continuous operation design ensures long-term reliable service of water injection systems, while modular structure greatly reduces daily maintenance difficulty and comprehensive operating costs. We deliver one-stop full-process solutions including personalized scheme customization, standardized production, global logistics and on-site commissioning guidance, providing stable and efficient core equipment support for oilfield reservoir pressure maintenance and enhanced oil recovery projects.

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