Numerical control winding pumping unit with sealed steel wire rope

Abstract

The invention relates to a numerical control winding pumping unit with a sealed steel wire rope. A magnetic powder brake of the numerical control winding pumping unit for the sealed steel wire rope is connected to a motor, a rolling cylinder is fixed onto a cylinder seat, a reduction gearbox output shaft is connected with a rotating shaft of the rolling cylinder through a first chain inclined upwards, and an encoder is mounted on the reduction gearbox output shaft; the sealed steel wire rope is wound on the rolling cylinder, the sealed steel wire rope enters an oil well after passing through a rope guider, a guide mechanism and a well mouth sealing device in sequence, the other end of the sealed steel wire rope is connected with an underground oil extractor, a pressure sensor is fixedly arranged at the upper end of the oil extractor, and the lower end of the oil extractor is connected to a weighing rod; the rope guider is mounted on a rope guiding support, the rotating shaft of the rolling cylinder is connected with a one-way reciprocating lead screw of the rope guider through a second chain inclined upwards, and the sealed steel wire rope is rightly tangential to a rope guiding wheel of the roper guider; and the guide mechanism comprises a plurality of continuous fixed pulleys. The sealed steel wire rope is used, the sealing property reaches up to more than 90%, and a pneumatic swabbing seal box is also matched with the sealed steel wire rope, so that a well mouth is good in sealing property, and the service life of the steel wire rope is long.

Description

Technical field [0001] The invention relates to oil pumping equipment in the field of oil field development, in particular to a sealed steel wire rope numerical control winch pumping unit. Background technique [0002] With the continuous exploitation of oilfields, most of my country's oilfields have entered the middle and late stages of development, and some low-permeability reservoirs have been further exploited, and the number of low-production fluid wells has continued to increase. For low-permeability and ultra-low-permeability reservoirs, the difficulty of exploitation has increased. Conventional pumping units have high lifting investment, high energy consumption, and low efficiency, which have been unable to meet the needs of economic development of low-permeability and difficult-to-recover reservoirs. A lot of research has been done on new energy-saving pumping units, and a variety of new energy-saving pumping units have been developed. At present, the most used pumping u...

AI Technical Summary

Problems solved by technology

[0003] One object of the present invention is to provide a sealed steel wire rope numerical control winch pumping unit, which is used to solve the common problems of wire rope damage and sealing problems in existing lifting pumping units

Images