Automatic airlock eliminating device of electric submersible pump

Abstract

The invention discloses an automatic airlock eliminating device of an electric submersible pump. The automatic airlock eliminating device of the electric submersible pump comprises a body adopting a tubular structure, wherein an inner boss integrally formed with the body is arranged in the tubular-structure body, a locating clamp ring is arranged at the position, which keeps a certain distance from the inner boss, of the upper end of the inner boss, a movable valve element is clamped between the locating clamp ring and the inner boss, and a runner is formed in the middle part of the valve element. The automatic airlock eliminating device has the benefits as follows: when a producing well causes an airlock phenomenon, the electric submersible pump can automatically eliminate the airlock phenomenon, and no additional cost is required, so that the offshore oilfield producing well can resume production rapidly, the hourly rate of production of the producing well is increased, and the loss of the yield is avoided, meanwhile, compared with a traditional manual airlock eliminating manner, no manual intervention is needed, the operation risk of eliminating the airlock phenomenon at sea by staff is reduced, a large quantity of operation cost for processing a fault of an oil well is reduced, and the automatic airlock eliminating device is high in reliability and high in safety factor.

Description

technical field [0001] The invention relates to the field of offshore electric submersible pump oil well development, in particular to an electric submersible pump automatic release airlock device that can automatically unlock and resume production when the electric submersible pump of the offshore electric submersible pump oil well is airlocked. Background technique [0002] After decades of development, CNOOC has summed up various effective solutions to deal with the general failure of ESP production wells. When ESP wells fail, they can be quickly resolved and avoided. The loss of production and the cost of large-scale mobilization of personnel to carry out workover operations on faulty ESP wells. However, due to the invisibility of oilfield geological conditions, there may be deviations in the data obtained during the development process, and the actual situation in the actual development process of the oilfield may not match the design, and the problems caused by thi...

AI Technical Summary

Problems solved by technology

Such a method will sacrifice the running time of the electric submersible pump, resulting in a loss of production; at the same time, it will also require a considerable cost to mobilize personnel

[0004] In this way, in order to overcome the production loss caused by the air lock of the existing offshore electric submersible pump well and save the cost of dealing with the air lock, an electric submersible pump is designed when the offshore oil and gas well is air locked in the electric submersible pump. A device that can automatically release the air lock is necessary

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