Pumping well anti-eccentric device based on olive-shaped abrasion-proof body
An olive-shaped, pumping well technology, which is applied to drilling equipment, earthwork drilling, drill pipes, etc., can solve the problems of increased maintenance costs for oil well operations, affecting normal production of pumping wells, and ineffective anti-eccentric wear effects, etc., and achieves a simple structure , long anti-wear time, and the effect of increasing crude oil output
Inactive Publication Date: 2015-06-17
XIAN XIDIAN SOFTWARE
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Problems solved by technology
Although there are many types of anti-eccentric wear devices for sucker rods, the effect of anti-eccentric wear is not obvious during field use, and there is still a problem of local severe wear, which causes damage and breakage of sucker rods and oil pipes, directly Affect the normal production of the pumping well, resulting in an increase in the maintenance cost of the oil well operation
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[0014] The present invention will be described in detail below in combination with specific embodiments.
[0015] The invention relates to an anti-eccentric wear device for pumping wells based on an olive-shaped anti-wear body, which is provided with a central rod 2, and the upper and lower ends of the central rod 2 are respectively connected with an upper joint 1 and a lower joint 4, both of which are cylindrical. The center rod 2 between the upper joint 1 and the lower joint 4 is covered with an olive-shaped wear-resistant body 3; the diameter of the wear-resistant body 3 is larger than that of the upper joint 1 and the lower joint 4, and is connected There are gaps in between. Both the bottom surface of the upper joint 1 and the top surface of the lower joint 4 are provided with recesses having the same shape as the upper and lower ends of the wear-resistant body 3 . The upper and lower ends of the central rod 2 are provided with external threads, the upper joint 1 and the...
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The invention relates to a pumping well anti-eccentric device based on an olive-shaped abrasion-proof body. During a site using process of a sucker rod anti-eccentric device, anti-eccentric effect is not obvious, and accordingly a sucker rod and an oil pipe are damaged and fall off. The pumping well anti-eccentric device is provided with a center rod. The upper end and the lower end of the center rod are connected with an upper connector and a lower connector which are both in a cylinder shape respectively. The olive-shaped abrasion-proof body is arranged on the center rod between the upper connector and the lower connector in a sleeved mode. The diameter of the abrasion-proof body is larger than the diameter of the upper connector and the diameter of the lower connector. Gaps are formed between the abrasion-proof body, the upper connector and the lower connector. Concave loops in the same shape as the upper end and the lower end of the abrasion-proof body are arranged on the bottom face of the upper connector and the top face of the low connector. The pumping well anti-eccentric device based on an olive-shaped abrasion-proof body is long in abrasion-proof time, direct contact of the sucker rod and the oil pipe is avoided, so that abrasion is avoided, the service life of the sucker rod and the oil pipe is prolonged, and oil well normal production is kept.
Description
technical field [0001] The invention relates to a device for preventing eccentric wear of sucker rods and oil pipes in oil exploitation operations, in particular to a device for preventing eccentric wear of oil pumping wells based on an olive-shaped anti-wear body. Background technique [0002] As oilfield development enters the middle and late stages, the phenomenon of eccentric wear of sucker rods and tubing will intensify, seriously affecting oilfield production. Although there are many types of anti-eccentric wear devices for sucker rods, the effect of anti-eccentric wear is not obvious during field use, and there is still a problem of local severe wear, which causes damage and breakage of sucker rods and oil pipes, directly Affect the normal production of the pumping well, resulting in an increase in the maintenance cost of the oil well operation. Contents of the invention [0003] The object of the present invention is to provide a pumping well anti-eccent...
Claims
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Login to View More IPC IPC(8): E21B17/10
CPCE21B17/1085
Inventor 周永国杨明武海龙王征孟庆德党峰
Owner XIAN XIDIAN SOFTWARE