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In the process of oil extraction, the extraction of sand-containing wells has always been a difficult problem in the industry. When sand enters the interior of the oil pump, it will cause wear and tear, plunger stagnation and other failures.

In the field of petroleum extraction equipment, API standards are the core yardstick for measuring product performance. As an enterprise focusing on the research and development of petroleum rod pumps and pipe pumps, Dongsheng Petroleum relies on the API 11AX standard to build API type rod pumps.

API type rod pump strictly follows the API Spec 11AX standard of the American Petroleum Institute, from the size specification of the plunger diameter of 1.0625-3.75 inches to the structural requirements of the X-type thin-walled pump cylinder, there is a clear technical definition. As an API 11AX certified company, Tieling Dongsheng's API type rod pump can be directly connected to the procurement standards of large oil fields such as PetroChina and Sinopec.

In oil extraction operations, deep well pump oil recovery equipment is the core equipment to open up the underground crude oil delivery channel to the ground, and the beam—type oil pump-oil pump device, with its excellent reliability and strong environmental adaptability, occupies an important position in various types of oil recovery equipment and has become one of the most widely used types.

Downhole sucker rod pump generally refers to a plunger-type oil pump driven by the reciprocating movement of the sucker rod up and down. It is the key underground equipment of the rod pumping system. It is mainly composed of four parts: pump cylinder, plunger, fixed valve and swimming valve. When working, the ground pumping unit drives the plunger up and down through the pumping rod.

RWA Insert Rod Pump is a rod-type oil pump designed according to API SPEC 11AX (or GB/T18607) standard. According to the support and fixed form of the pump, it can be divided into three categories: moving cylinder type bottom fixed rod type oil pump (RWT or RHT), fixed cylinder type bottom fixed rod type oil pump (RWB or RHB or RXB), fixed cylinder type top fixed rod type oil pump (RWA or RHA).

Maintaining efficient and stable crude oil production in environments with sand content, low liquid levels, deviated wells, and intermittent production has become a focus of industry attention. As a core piece of equipment in traditional mechanical oil production, the insert rod pump exhibits wide adaptability due to its diverse structural configurations. Among them, the top-fixed insert rod pump with a fixed barrel, the bottom-fixed insert rod pump with a fixed barrel, and the bottom-fixed insert rod pump with a moving barrel each play an important role in different operating conditions due to their unique structural advantages.

During oil production, when reservoir energy is insufficient to support natural crude oil flow, artificial lift systems become essential. Among these, RHA insert rod pumps are widely used worldwide. This article will explain the differences between different RHA insert rod pump models, including their structural components, operating principles, typical applications, technical differences compared to other pump types, and installation methods.

In the field of oil extraction, manual lifting methods are essential. Among them, rod pumps are a common and efficient way to pump oil.This article will discuss in depth the principle, performance analysis and how to choose a suitable pumping device of the rod pump pumping system.

What is Gas Lock? Some oil wells contain a high concentration of gas, which can enter the pump barrel through the fixed valve. If not promptly vented, the gas will gradually fill the space below the plunger in the pump barrel. As the plunger descends, the liquid in the tubing string acts on the traveling valve, exerting significant pressure. This prevents the traveling valve from opening, compressing the gas in the pump barrel below the plunger and preventing the flow of liquid above the plunger. As the plunger ascends, the compressed gas expands, exerting pressure on the fixed valve, preventing it from opening and preventing the pump from drawing liquid. This repetitive cycle of gas compression and expansion without any discharge is called gas lock.