In the field of heavy oil and high-viscosity crude oil extraction, the performance of thermal recovery sucker rod pump directly determines the recovery efficiency and operating costs of oil fields. As a professional manufacturer in the field of domestic petroleum machinery, Tieling Dongsheng relies on in-depth research on thermal mining conditions to create the thermal recovery sucker rod pump. Relying on the four core advantages of high temperature resistance, high pump efficiency, strong wear resistance and easy maintenance, it has become the preferred equipment for PetroChina, Sinopec and other enterprises. The following analyzes the key advantages of thermal recovery sucker rod pump from the perspective of technical principles and practical applications.
Table of contents：
High temperature resistance
Anti-air lock design
Advantages of sand-resistant structure
Applicable scenarios
Reference materials
1. High temperature resistance：
In thermal mining operations, processes such as steam throughput and steam drive will cause the underground temperature to be as high as 300-350℃. Ordinary oil pumps are prone to seal failure and component deformation due to insufficient material temperature resistance. Tieling Dongsheng thermal recovery sucker rod pump adopts chrome-molybdenum alloy integral forged pump cylinder, with nickel-based alloy valve ball and valve seat, tested by a third-party testing agency (National Petroleum drilling equipment quality inspection and Testing Center), the standard far exceeds the industry's conventional temperature resistance standards. This advantage enables thermal recovery sucker rod pump to be stably adapted to steam drive operations in many oil fields at home and abroad, avoiding frequent pump inspections due to high temperature.
2. Anti-air lock design：
In the process of heavy oil thermal recovery, the associated gas of crude oil can easily cause the oil pump to “air lock”, causing the air pumping and pump efficiency to plummet. Tieling Dongsheng thermal recovery sucker rod pump innovatively adopts ”double valve forced opening and closing + exhaust passage" structure, the swimming valve is forcibly reset by a mechanical spring, and the fixed valve adds an annular exhaust tank, which can quickly discharge the gas in the pump.
3. Advantages of sand-resistant structure：
In oilfield thermal mining operations, formation sand can easily cause wear of oil pump cylinder liners and pistons, shortening equipment life. The inner wall of the pump cylinder of Tieling Dongsheng thermal recovery sucker rod pump adopts plasma spraying tungsten carbide coating, the hardness is above HV1200, and the wear resistance is 5 times that of ordinary stainless steel; At the same time, the piston adopts a stepped sand-proof design to reduce the entry of sand particles into the sealing gap.
4. Applicable scenario：
In view of the differences in well depth and pipe diameter in different oil fields, Tieling Dongsheng thermal recovery sucker rod pump adopts a modular structure design. The core components such as the pump cylinder, piston, and valve group can be replaced separately, without the need to pump as a whole, and the maintenance time is shortened by 50%. At the same time, various pump diameter specifications are provided, which are suitable for a variety of commonly used casing models. In addition, the equipment interface conforms to the API 11AX standard, which can be compatible with mainstream pumping rods and wellhead devices at home and abroad, reducing the cost of oilfield equipment replacement.
As an enterprise that has focused on petroleum machinery for more than ten years, the four advantages of Tieling Dongsheng thermal recovery sucker rod pump have been verified by practice in many domestic oil fields. In the future, the company will continue to update the intelligent monitoring function ofthermal recovery sucker rod pump to help oil fields achieve the goals of “cost reduction, efficiency enhancement, and green”mining. For more product cases and technical consultations, please visit the official website：http://www.dsrodpump.com.
Reference materials：
[1] "Oil Drilling Technology" No. 4, 2024
[2] "China Petroleum Machinery Industry Report 2024"