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In the early stage of oil field exploitation, the oil reservoir often has a large amount of energy, and the oil can flow from underground to the ground by energy. As the energy of the oil reservoir is continuously consumed, when the energy of the oil reservoir is not enough to make the oil flow to the ground along the wellbore by its own energy, it is necessary to supplement the energy artificially to make the oil be extracted to the ground, which we collectively call artificial lift.

In the previous article, we talked about what is the difference between api sucker rod pump and submersible electric pump? If you want to know more about the related content, you can click the link to visit! Overview of API tubing pump: 1. Composition of oil pump: The pump barrel assembly of API tubing pump is directly connected to the lower end of the oil pipe, and the plunger goes into the pump barrel with the sucker rod. API tubing pump consists of two parts: pump barrel assembly and plunger assembly. The pump consists of a pump barrel, a fixed valve and a hollow plunger with a floating valve. 2. Working principle: During the pumping process, the plunger reciprocates up and down in the pump barrel with the movement of the sucker rod. During the upstroke, the floating valve ball on the plunger is closed, the fixed valve ball is opened, and the plunger discharges the liquid in the upper chamber into the upper oil pipe of the pump. At the same time, the liquid in the well enters the lower chamber of the pump barrel through the fixed valve under the action of the inlet pressure. During the downstroke, the fixed valve is closed, the floating valve is opened, and the liquid in the lower chamber of the pump enters the upper chamber of the pump barrel through the inner cavity of the plunger. The plunger surges up and down, and the liquid is continuously pumped to the wellhead. 3. Analysis of the reasons for API tubing pump repair: For coalbed methane wells, repair is mainly caused by eccentric wear and pump failure. Well repair requires all the pipes to be lifted out of the ground. There is a detailed description later.

API sucker rod pump overview: 1. Structure of API sucker rod pump : API sucker rod pump is a sleeveless integral deep well pump, which is divided into two categories: top fixed type (RHA, RWA) and bottom fixed type (RHB, RWB); the structure consists of two major parts: plunger built-in pump barrel assembly and external fixed assembly. 2. Working principle: The working principle of API sucker rod pump is the same as that of tube pump, which relies on the reciprocating motion of the plunger to pump the well fluid to the ground. During the upstroke, the fixed valve and the annular valve are opened, the floating valve is closed, the well fluid washes the well pump barrel, and the liquid on the plunger is pumped to the ground; during the downstroke, the floating valve is opened, the fixed valve and the annular valve are closed to form a secondary compression, and the well fluid flows to the plunger through the floating valve. 3. Analysis of reasons for API sucker rod pump repair: The main feature of API sucker rod pump repair is that the pump can be brought to the ground for repair by pulling out the sucker rod instead of pulling out the oil pipe, which reduces the workload and intensity, shortens the recovery time of the lying well, and improves work efficiency. The main problems of API sucker rod pump are: the pull rod of the pump is easy to wear and break; after the coal powder is stuck in the pump, the pump plunger is directly unsealed when it is unstuck; the leather cup of the pump body falls off, causing the seal to fail; the pump fixed valve leaks. 4. Scope of use: API sucker rod pump is mainly suitable for vertical and inclined wells with small liquid production (well inclination <75°), wells with sand, coal powder and light scaling.

Faced with multiple well conditions such as shale oil, high corrosion, and high sand content, rod pumps are still the equipment in artificial lift. Which types of pumps perform better? Which ones are suitable for different user needs? What are the advantages and limitations of plunger lift solutions?

Our Tieling Dongsheng Petroleum Machinery Co., Ltd. it is a company specializing in the production and manufacture of petroleum extraction machinery and parts. Our API tubing pump is produced in Liaoning, China, with an annual supply capacity of 20,000 pieces and a delivery time of only 8-10 weeks. It can provide stable and reliable solutions for oilfield customers around the world.

Our thermal recovery sucker rod pump is specially designed for the field of thermal recovery in oil fields and is designed to solve the problem of steam recovery in heavy oil extraction. Our thermal recovery sucker rod pump is produced in Tieling Dongsheng Petroleum Machinery Co., Ltd. , our annual supply capacity reaches 20,000 pieces, and we promise a standard delivery cycle of 8-10 weeks to meet the needs of global oilfield projects.

Ⅰ.The use of rod pumps to pump oil is the core method of oilfield mechanical oil recovery： In oilfield development, when the oil well cannot be self-injected due to insufficient formation energy, thick crude oil, etc., or the output is too low, it is necessary to use mechanical energy to recover oil. At present, the main mechanical oil recovery methods we use include gas lift oil recovery and deep well oil sucker rod pump oil recovery, and rod pump pumping is one of the important types of deep well oil sucker rod pump oil recovery. With the advantages of simple structure and easy maintenance, it is most widely used in oil fields around the world, especially in shallow and medium-sized oil wells.

The air lock problem in heavy oil mining is being gradually solved by our company. We Tieling Dongsheng Petroleum Machinery Co., Ltd. with the design of this mechanical valve, the forced valve rod pump has achieved a breakthrough in reducing the air lock rate by 90% in oil fields such as Liaohe and Daqing. Today we will pass some key questions and answers to uncover the innovative core of this domestic technology.

Ⅰ. The structure of deep well oil sucker rod pump： Pumping rod pump is also called deep well rod pump. Our deep well oil sucker rod pump is a special equipment for mechanical oil recovery with rod pump.Under the pump, it is at a certain depth below the moving liquid level in the well shaft, and relies on the sucker rod to transmit the power of the sucker to extract the crude oil from the ground. Deep well oil sucker rod pump is divided into combined pumps and whole cylinder pumps according to whether there is a bushing or not. The working cylinder of the combined deep well oil sucker rod pump has several bushings, and it is pressed by the upper and lower compression joints; the working cylinder of the whole pump is a seamless steel pipe without a bushing inside. Deep well oil sucker rod pump is divided into two types: tubular pump and rod pump according to its installation method and structure in the well.

In the process of extracting oil, we will encounter some problems of aging or damage to equipment. At this time, we need to maintain and overhaul the equipment in a timely manner, and even replace the necessary parts and components. We all know that when mining oil fields, well workers sometimes can't see the underground environment so clearly. Petroleum may also have chemical effects on iron machinery. In the long run, it is inevitable that mechanical parts will rust, so at this time we need to replace the mechanical parts.