Product News

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.

In the previous article, we discussed the RHA Insert Rod Pump. This article will explain the definition, model description, technical specifications, structural components, operating principle, application scenarios, comparison with other pump types, and installation methods of the TH tubing pump.

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.

Artificial lift oil recovery method is a method of artificially replenishing energy to the bottom of an oil well and lifting oil from the reservoir to the wellhead. It is a key technical link in oil recovery engineering. After decades of development, a number of lifting technologies such as oil pumps, screw pumps, electric submersible pumps, and air lifts have been formed to meet the needs of conventional oil recovery, but at the same time there are also a series of problems such as low efficiency, high energy consumption, and short pump inspection cycles. In recent years, the field of unconventional oil and gas extraction has been very lively, and the difficulty of extracting oil and gas reservoirs has also increased. In the face of increasingly complex oil well lifting conditions and rising oil production costs, efficient and low-cost artificial lift technology has also become the research focus of major oil service companies.

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.

Plunger lifting system is a typical manual lifting technology to deal with the problem of fluid accumulation in low-yield wells. When the oil well cannot continue to produce crude oil due to insufficient pressure, the plunger lifting system will realize the lifting of crude oil through the periodic movement of the metal plunger, which is an important branch of mechanical manual lifting.

In many oilfields, especially unconventional resource wells, traditional lifting equipment is prone to the following problems: Short lifespan: Sandy or corrosive well fluids cause rapid wear of the pump body; Frequent maintenance: Frequent well shutdowns for inspections lead to reduced production; High labor dependency: Experienced technicians are required to maintain operation. These pain points are driving more and more buyers in 2025 to seek solutions that reduce O&M costs while ensuring long-term stable operation. Table of Contents: Why choose an API tubing pump? (Highlighting the value of this solution) API tubing pumps are compatible with different well depths and well conditions Recommended Best Budget API tubing pumps in 2025 Factors affecting API tubing pump prices How to choose the right API tubing pump Supply and after-sales service

Artificial lifting technology is an indispensable means in oilfield development. It refers to the system engineering of supplementing the lack of natural energy in the formation through external equipment to achieve efficient crude oil extraction. As the oilfield enters the mid-to-late development stage, the formation pressure drops, and the natural flow well is gradually unable to maintain production. At this time, manual lifting has become the key to ensure stable production.