Multifunctional centralizing and oil increasing device

Abstract

A multifunctional centralizing and oil increasing device characterized by a rotary centralizer capable of being changed to a plunger and a matched check valve comprises a moving coupling, a rod, a floating nylon spiral guide sleeve, a fixed nylon spiral guide sleeve, a fixed coupling and a check valve. The moving coupling, the rod, the floating nylon spiral guide sleeve, the fixed nylon spiral guide sleeve and the fixed coupling are combined together to be installed between two sucker rods to form the rotary centralizer. In up moving, the floating nylon spiral guide sleeve and the fixed nylon spiral guide sleeve are meshed to have the effect of the plunger, the check valve is arranged on the close sucker rod disposed on the lower side and is semi-fixed on an oil pipe to have the effect of a fixed valve, and accordingly a set of integral oil-well pump is formed. By changing materials and structures, the multifunctional centralizing and oil increasing device integrates multiple functions such as centralizing, abrasion resisting, falling preventing, paraffin preventing, sand preventing, clamping preventing, energy saving and oil increasing, achieves the purpose of oil increasing in aspects of thermal washing oil consumption reducing, production time efficiency increasing, multi-stage pump oil extracting and pump efficiency improving, and can be widely applied to oil extracting of sucker-rod pumps of vertical shafts, directional wells, conventional heavy oil wells and common sand production wells.

Description

technical field [0001] The invention relates to a rod pump oil extraction of the oil extraction machinery technology in the petroleum industry, especially a centralizer, a wax scraper and an oil booster used on a sucker rod for preventing wax, sand, partial wear, breaking off and increasing oil. The technical field is F04C 23 / 00, specially applicable to the combination of two or more pumps for elastic fluids, each of the rotary piston or oscillating piston pump type; specially suitable for pumping devices for elastic fluids; specially suitable for Multistage pumps for elastic fluids. Background technique [0002] Oil wells, especially directional wells with rod pumps, generally face problems such as eccentric wear, wax deposition, sand production, pump jamming, breakage, etc., which affect the working rate and gas slippage, and oil-water separation affects the efficiency of pumping pumps. There are many types of centralizers and oil boosters, but their functions are relativ...

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the shortcomings of existing centralizers and oil boosters with relatively single functions and limited oil boost effects, the present invention forms a rotary centralizer and matching stop that can be turned into a plunger by changing the materials and structures of the centralizers and oil boosters. The multi-functional righting and oil increasing device characterized by the return valve integrates the functions of righting, anti-wear, anti-stripping, wax prevention, sand prevention, anti-seizing, energy saving and oil increasing, and achieves the purpose of multi-function and common oil increasing

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