Low-rise super-long stroke intelligent control winding type pulling oil production system and working method

Abstract

The invention relates to a low-rise super-long stroke intelligent control winding type pulling oil production system. The low-rise super-long stroke intelligent control winding type pulling oil production system comprises a power drive assembly, a control assembly, a derrick assembly, a well mouth device, an underground tubular column and an underground multi-stage plunger super-long stroke oil well pump. A flexible oil pumping rope driven by the power drive assembly sequentially passes through a blowout prevention box of the well mouth device, an eccentric well mouth and the underground tubular column and is then connected with a steel wire rope in the tubular column or an oil pumping rod through a hoop, and therefore a full-well oil pumping rope is formed. The steel wire rope or the oil pumping rod is connected with the multi-stage plunger of the oil well pump. A fixed pulley assembly and a sliding and swinging device are arranged on the derrick assembly. The well mouth device is connected with the tubular column. The tubular column is connected with a super-long pump cylinder of the underground multi-stage plunger super-long stroke oil well pump. The low-rise super-long stroke intelligent control winding type pulling oil production system can overcome the defects that the stroke of a beam-pumping unit is limited, the beam-pumping unit is not suitable for low-yield oil wells, deep wells and gas-contained large wells, and can solve the problems that according to an existing winding type pulling oil production device, due to the full-well running mode, the size and the weight of the complete machine are large, material consumption is high, and transportation is not convenient.

Description

technical field [0001] The invention relates to oil production equipment, in particular to a low-profile super-long-stroke intelligent control winch-type lifting oil production system and a working method. Background technique [0002] At present, the beam pumping unit is the main pumping equipment of the rod pumping unit. Its disadvantages are: 1. The stroke is generally 6-8m due to the structural limitation, and the stroke loss is relatively large; 2. The pumping unit is large in size, There are many consumables. 3. The cost of equipment operation and maintenance and the cost of oil production per ton of fluid are large; 4. It is not suitable for deep wells, low permeability wells, heavy oil wells and wells containing gas. As most of my country's oilfields enter the middle and late stages of exploitation, especially the continuous development of low permeability wells, ultra-deep wells, and heavy oil wells, the beam pumping unit is no longer suitable for the production nee...

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the practical problems in the production of the above-mentioned prior art, and provide a low-slung ultra-long-stroke intelligent control winch type lifting oil recovery system and working method, which utilizes the downhole multi-stage plunger ultra-long stroke The oil well pump enables the stroke of the pumping unit to be set arbitrarily between tens of meters and hundreds of meters, breaking the limitation of the rod pump stroke of only 6-8 meters, and realizing the non-full well operation mode with super long stroke, which can not only overcome the beam The stroke of the pumping unit is limited and it is not suitable for low-yield oil wells, deep wells, and large gas-bearing wells, and it can avoid the existing hoist-type lifting oil production device due to the large volume and weight of the whole machine due to the full-well operation mode, and consumables Too many and inconvenient to transport; fast loss of pumps, high cost of tubing treatment, and high replacement cost of the entire flexible oil rope after wear and tear. The oil pipe above the pump barrel of the ultra-long stroke oil pump can be taken out, which can reduce the one-time investment cost of the oil well again; the cost of the whole machine can be reduced by nearly 40%

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