Downhole intelligent-control-type packing two-way injection allocation device

Abstract

The invention discloses a downhole intelligent-control-type packing two-way injection allocation device comprising an expansion type packer. The two ends of the expansion type packer are connected with an upper measuring and adjusting water distributor and a lower measuring and adjusting water distributor correspondingly, and the other ends of the upper measuring and adjusting water distributor and the lower measuring and adjusting water distributor are connected with an upper control bin and a lower control bin correspondingly. When the downhole intelligent-control-type packing two-way injection allocation device is used, the parts are connected through an oil tube and put downwards into a well in sequence; a cable is in faultless connection with a well outlet to be connected with a ground control system, and thus power supply and communication are kept normal; nozzle front pressure meters, upper nozzle rear pressure meters, lower nozzle rear pressure meters, upper flow meters and lower flow meters in the upper and lower control bins collect or store data in real time; and the data are uploaded to the ground control system through an upper steel tube cable and the like, the working state of the packer is diagnosed timely, and the injection amounts of the upper layer and the lower layer are measured and adjusted timely.

Description

technical field [0001] The invention relates to the technical field of petroleum exploitation machinery, in particular to an intelligently controlled downhole sealing two-way distributing device. Background technique [0002] At present, the process of layered water injection and gas injection in oilfields is developing towards intelligence. Real-time monitoring of parameters such as formation pressure, layered flow and temperature, and quantitative analysis are made to improve the production level of oilfields. The above monitoring data need to be collected and uploaded in time: ①The intelligent water distributor adopting the cableless method is an independent working unit in the underground. When multiple intelligent tools work at the same time, the test data cannot be shared, and the test time is long and uncertain. Large capacity and uncertain service life; such as the patent: Intelligent Water Distributor for Water Injection Well (Application No. 200920083855.x), which ...

AI Technical Summary

Problems solved by technology

The above monitoring data need to be collected and uploaded in time: ①The intelligent water distributor adopting the cableless method is an independent working unit in the underground. When multiple intelligent tools work at the same time, the test data cannot be shared, and the test time is long and uncertain. Large capacity and uncertain service life; such as the patent: Intelligent Water Distributor for Water Injection Well (Application No. 200920083855.x), which proposes an intelligent water distributor for water injection well that does not need to be fished and constructed, and can work remotely on the ground, without the need to be lifted in the wellbore Steel wire or cable, complete multiple functions such as water distribution and testing in one trip

②The intelligent water distributor adopts the cable uploading mode of pipe string and downhole tools. In the downhole, the two water distribution tools are connected through the cable through the packer. The water distribution tool and the packer are independent units. When going downhole, the two tools are connected by cables. There are many points and the on-site operation process is complicated; for example, the patent: cable-type water injection well intelligent measurement and distribution device (application number 201120566313.5), which solves the problem of poor real-time performance of existing water distribution devices and the inability to monitor downhole pressure, temperature, flow data, and flow distribution process in real time for a long time and flow changes for direct reading and monitoring

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