Pulling and running device of solid anti-wax device for rodless lifting well and pulling and running technology thereof

Abstract

The invention belongs to the technical field of oilfield oil production engineering, and belongs to a pulling and running device of a solid anti-wax device for a rodless lifting well and a pulling and running technology thereof. An underground solid anti-wax device can be changed from the ground without pulling a string, and anti-wax chemical agents can be fed repeatedly to prolong an anti-wax period. The pulling and running device consists of a spring 1, a limiting pin 2, a card 3, a butt joint 4, a solid anti-wax device 5 and a guide shaft 6. By the technology, the solid anti-wax device 5 can be directly changed from the ground without pulling the string, and the anti-wax chemical agents can be fed repeatedly. The pulling and running device and the pulling and running technology are mainly used in the rodless lifting well, and have the advantages that the structure is simple, operation is facilitated, construction cost is reduced, pump inspection period of an oil well and the service life of a whole unit are guaranteed, and the like.

Description

technical field [0001] The invention belongs to the technical field of oil production engineering in oilfields, and belongs to a throwing device and a throwing process of a solid wax preventer for rodless lift wells. Background technique [0002] In recent years, rodless lifting technology has been developed rapidly, but the problem of wellbore wax deposition seriously affects the pump inspection cycle, reduces the service life of the whole unit, and the cost of frequent construction operations is high. At the same time, there is a cable at the bottom of the well, and the conventional solid wax preventer is lowered into the bottom of the well at one time with the pipe string, and the chemical cannot be injected multiple times to prolong the wax control cycle. The oil well frequently deposits wax and the wax is dense, so frequent construction operations cannot be performed, which seriously affects the oil well inspection pump. cycle and the service life of the whole unit. Th...

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Problems solved by technology

[0002] In recent years, the rodless lifting technology has been developed rapidly, but the problem of wellbore wax deposition seriously affects the pump inspection cycle, reduces the service life of the whole unit, and the cost of frequent construction operations is high

At the same time, there are cables at the bottom of the well, and the conventional solid wax preventer is lowered into the bottom of the well at one time along with the pipe string, and the chemical cannot be injected multiple times to prolong the wax control cycle. The oil well frequently deposits wax and the wax is dense, so frequent construction operations cannot be performed, which seriously affects the oil well inspection pump. Cycle and complete unit life

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