Rotational flow efficiency-improving, anticorrosion and abrasion-resisting integrated lifting technology and mechanical extraction system

Abstract

The invention discloses a rotational flow efficiency-improving, anticorrosion and abrasion-resisting integrated lifting technology and a mechanical extraction system. The rotational flow efficiency-improving, anticorrosion and abrasion-resisting integrated lifting technology comprises the following steps that S1, before entering a well, a drift diameter gauge is used for inspecting the drift diameter of oil pipes one by one, it is inspected that a pump cylinder is in a perfect condition, and a structure of the downhole part is installed; S2, a machine is shut down, a brake is tensioned, a locking device is rocked down, power off is carried out, a warning board is suspended, and other structures are installed; S3, according to measurement data of an indicator diagram instrument, parametersare adjusted, and stratum feed flow is enabled to be matched with the oil well pump displacement; S4, the erosion prevention distance is adjusted, and oil pumping is started; and S5, pump inspection operation is carried out. According to the rotational flow efficiency-improving, anticorrosion and abrasion-resisting integrated lifting technology and the mechanical extraction system, well repair without the operation of lifting oil pipes and oil pumping rods is realized, the operating cost and time are saved, ground oil liquid pollution and pipe consumption are reduced, the pump inspection efficiency is improved, the service life of a whole well is prolonged, and the overall efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of oil production equipment in oilfields, in particular to a swirl efficiency-improving anti-corrosion and wear-resistant integrated lifting process and a mechanical recovery system. Background technique [0002] Suppliers of oilfield products at home and abroad have actively researched and developed in their respective fields, formed new products and technologies such as new oil pipes, anti-eccentric anti-corrosion and anti-corrosion sucker rods, various types of oil well pumps, etc., and achieved good results in oil fields. benefit. However, each process is carried out in its own field, which cannot form a complete set of the entire oil recovery process, and cannot give full play to the advantages of each research and development technology, but causes major waste. [0003] With the advancement of science and technology, the production process of domestic oilfields has lagged far behind the current develo...

AI Technical Summary

Problems solved by technology

[0004] 1. Tubing and sucker rods are eccentrically worn and severely corroded. Tubing and sucker rods cannot meet the requirements of well conditions at the same time, and there are short plates of corrosion and breakage

Many workover operations are caused, and after many workovers of tubing and sucker rods, the thread wears out, the overall life of the mechanical production system cannot be guaranteed, and the overall cost is increased

[0005] 2. The combination of oil pump and other devices cannot effectively cooperate with the development of whole well oil production technology

Oil pipes, sucker rods, and oil well pumps are closely integrated in one system. If the oil well pumps need to be lifted frequently for maintenance, the threads of the oil pipes will also be disassembled and worn many times, which cannot solve the overall problem

[0006] 3. The oil layer produces sand, which causes the pump to be stuck, and the oil well pump takes in air, causing the air lock to produce no oil

The oil well pump is the first step to enter the downhole liquid. If the oil layer produces sand and causes a pump jam accident; or the formation produces gas, resulting in a gas lock accident, there are still shortcomings in the mechanical recovery system.

No matter how advanced the anti-corrosion measures are for the supporting tubing and sucker rods, the overall benefit of the system will be significantly reduced after multiple workovers

[0007] 4. As the power source of the mechanical production system, the pumping unit has a driving effect on the operation of the system. However, if the downhole fluid is insufficient, if the speed cannot be slowed down in time, the pumping pump will be insufficient, even if the most powerful pumping unit is used. It will still lead to dry grinding of the oil well pump, wasting energy, and cannot guarantee the efficiency of the mechanical recovery system

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