China National Petroleum Corporation (CNPC) is one of the world's largest oil and gas producers and plays a key role in ensuring China's national energy security. Its subsidiary Liaohe Oilfield is located in Panjin City, Liaoning Province. It has complex geological conditions and is one of the most challenging oilfields in China.
In June 2019, our company stood out from many competitors and successfully won the bid for the Liaohe Oilfield high-performance rod pump project. This victory not only reflects our technical strength and industry experience, but more importantly, it proves that our products can solve actual production problems in the oilfield.
The Liaohe Oilfield faces harsh working conditions, including:
1. High-temperature heavy oil thermal recovery.
2. Sandy and gas-containing wells.
3. Deep wells with high lifting requirements.
4. Thin oil wells with unstable pressure.
These conditions often lead to frequent pump failures, short service life and high maintenance costs when using traditional rod pumps.
Our solution: pump technology tailored for harsh environments：
To meet the special challenges of Liaohe Oilfield, our engineering team developed a series of special-purpose rod pumps, including:
1. All-metal rod pumps – excellent wear and corrosion resistance.
2. High-temperature rod pumps – stable under thermal recovery conditions.
3. Bottom-pressure rod pumps – enhanced deep sealing and performance.
4. Heavy oil hot lift rod pumps – designed for steam-assisted operations
With customized materials, patented design and enhanced structural strength, these pumps have longer durability and excellent adaptability in extreme well conditions.
Performance proves everything:
By implementing our customized rod pump system, Liaohe Oilfield has achieved:
1. Longer service life in high-temperature and high-sand wells.
2. Reduced equipment failures and maintenance costs.
3. Improved oil recovery efficiency in complex wells.
4. Wear, corrosion and pressure fluctuation resistance
Our technical solutions have been field tested and evaluated and recognized and approved by the Liaohe expert group of PetroChina.
Why did they choose us?
Our success is not only due to high-quality products:
1. Strong R&D capabilities with more than 30 national patents.
2. Expert engineering team with many years of oilfield experience.
3. Fully in-house production and strict quality control.
4. Ability to provide customized pumping solutions based on actual well data.
5. Proven service and support system to establish long-term partnerships.
Energy equipment is not only an industrial support, but also an important part of the national strategy. In the future, we, Dongsheng Petroleum Machinery Co., Ltd., will continue to uphold the spirit of craftsmanship, focus on technological innovation, serve global customers, and firmly walk at the forefront of localization, high-end and internationalization of petroleum equipment.