Separated layer water injection device and process method based on downhole wireless communication

Abstract

The invention discloses a separated layer water injection device and a process method based on downhole wireless communication. The separated layer water injection device comprises two water distributors and a packer connected between the two water distributors with inner side walls and outer side walls, a first ring cavity is formed between each inner side wall and the corresponding outer side wall, water inlets and water outlets communicated with the first ring cavities are formed in the inner side walls and the outer side walls, a driving mechanism and an adjustable blocking part driven bythe driving mechanism are arranged in each first ring cavity, each adjustable blocking part is provided with a first working position and a second working position, the first working position is usedfor plugging the corresponding water inlet or water outlet so that the water inlet and the water outlet cannot be communicated through the corresponding first ring cavity, and the second working position is used for unplugging the corresponding water inlet or water outlet so that the water inlet and the water outlet can be communicated through the corresponding first ring cavity. The separated layer water injection device based on downhole wireless communication can intelligently and automatically adjust opening of the separated layer water injection water distributors.

Description

technical field [0001] The invention belongs to the technical field of petroleum exploitation, and in particular relates to a layered water injection device and a process method based on downhole wireless communication. Background technique [0002] In the process of oilfield layered water injection development, the resistance rate of measurement and adjustment is high, the test instrument falls frequently, the seal of the packer is difficult to check, and the digital level of water injection is low. In order to save the cable test and deployment process, improve the digital level of water injection, realize the single-layer flow test and deployment of separate injection wells in the central control room, and realize the real-time remote transmission of flow, pressure, temperature, packer sealing and other data to the central control room, Research on digital intelligent layered water injection technology has been carried out. [0003] At present, the cabled digital dispens...

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Problems solved by technology

[0005] In order to solve the existing problems in the prior art, the present invention provides a layered water injection device and process method based on downhole wireless communication. The layered water injection device based on downhole wireless communication introduces the cable into the oil pipe to solve the problem of the cable preset outside the pipe. Cable digital distribution technology The cable outside the pipe is easy to wear, the construction is difficult, and the technical problems such as working under pressure cannot be achieved

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