Downhole storage type electric control fluidal material releasing device and method
A storage device and storage technology, which is applied in earthwork drilling, wellbore/well components, sealing/isolation, etc. It can solve the problems of low ash pouring success rate, poor performance reliability of mechanical energy storage switch, poor construction safety, etc. problems, to achieve the effect of ensuring construction safety, simple and convenient construction procedures, and reliable performance
Pending Publication Date: 2018-11-13
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology
However, the performance and reliability of the mechanical energy storage switch in this method is poor, the success rate of ash pouring is low, and the construction safety is poor
Method used
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[0020] The detailed description and technical content of the present invention are described below in conjunction with the accompanying drawings. However, the accompanying drawings are only for reference and description, and are not used to limit the present invention.
[0021] As attached Figure 1 to 2 As shown, the underground storage type electronically controlled fluid delivery device includes five parts: a top-down storage device, a delivery switch, a mechanical transmission anti-jamming structure, a power device, and an electric storage control device. The electric storage control device is composed of an automatic control device and an electric energy storage device, which can realize the intelligent timing control of the release switch.
[0022] The storage device includes a storage barrel 2 and a pour cap 1. A pour cap 1 is provided on the upper end of the storage barrel, and a fluid inlet is provided on the pour cap.
[0023] The release switch includes a release 4 and a ...
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The invention discloses a downhole storage type electric control fluidal material releasing device and method. The downhole storage type electric control fluidal material releasing device comprises astorage device, a releasing switch, a mechanical transmission jam-preventing structure, a power device and an electric storage control device which are connected sequentially from top to bottom. A fluidal material inlet is formed in the upper end of the storage device, and a discharge hole is formed in the side face of the releasing switch; and the electric storage control device starts the powerdevice, the power device drives the mechanical transmission jam-preventing structure to act, the releasing switch is turned on by the mechanical transmission jam-preventing structure, and the discharge hole is opened and closed by the releasing switch. According to the downhole storage type electric control fluidal material releasing device and method, the storage device, the releasing switch, themechanical transmission jam-preventing structure, the power device and the electric storage control device are adopted to release fluidal materials, the defects and deficiencies of the prior art canbe effectively overcome or avoided, and a formation can be effectively blocked.
Description
Technical field [0001] The invention relates to an oil layer plugging technology in a petroleum industry system, in particular to a device and method for downhole storage type electronically controlled feeding fluid. Background technique [0002] During the oil test operation, when completing the oil test task of a layer group, the production layer must be closed to ensure that the production layer does not affect the quality of the data acquisition of the oil test layer. A commonly used method of stratum plugging is to inject ash with a cable ash injector. It does not use cement trucks and tank trucks, and only uses cable cars to complete ash injection operations. Its main structural feature is composed of an ignition system, a power transmission system and a ash injection tool. The high pressure sealing area is formed by the powder chamber, the combustion chamber, the top cylinder and the piston. Connect the magnetic locator at the upper end of the cable to the ignition head ...
Claims
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Login to View More IPC IPC(8): E21B33/13
CPCE21B33/13
Inventor 程正全王卫明岳广韬田浩然韩博朱丽杰赵小龙卢雅兰
Owner CHINA PETROLEUM & CHEM CORP