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Cable-controlled intelligent stratification water injection device system and construction technique thereof

A layered water injection and cable-controlled technology, which is applied to coupling devices, parts of connecting devices, and production fluids, etc., can solve the problem of low success rate of lateral positioning and docking of fishing equipment, complicated manual operation and construction, and layered water injection. The problem of poor effect, etc., can save the cost of manual measurement and adjustment, save the cost of measurement and adjustment, and reduce the operation cost.

Pending Publication Date: 2019-02-26
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Currently commonly used layered water distributors; all are mechanical underground water distribution structures; although layered water injection technology can be realized; but there are problems such as complex manual construction, difficult measurement and adjustment, and poor effect of layered water injection.
At present, the test deployment of layered water injection wells in oilfields is mainly based on steel wire operations; the control platform of the ground well test vehicle controls the lifting and lowering of the steel wires and repeatedly pulls and fishes to replace the fixed nozzles; the workload is heavy; it is impossible to control the real-time monitoring and adjustment instrument on the ground to achieve The measurement and adjustment are synchronized; and the success rate of lateral positioning and docking of the throwing and fishing instrument is low

Method used

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  • Cable-controlled intelligent stratification water injection device system and construction technique thereof
  • Cable-controlled intelligent stratification water injection device system and construction technique thereof

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Embodiment Construction

[0033] In describing the present invention, it is to be understood that the terms "central", "longitudinal", "transverse", "upper", "lower", "vertical", "horizontal", "top", "bottom", The orientation or positional relationship indicated by "inner", "outer", "one side", "one end", "one side" etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description. It is not intended to indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "fir...

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Abstract

The invention discloses a cable-controlled intelligent stratification water injection device system and a construction technique thereof. The system comprises a technique tubular column, a ground control device and a computer. The technique tubular column is connected with the computer through a steel pipe cable and the ground control device and provided with a cable-controlled intelligent water distribution device integrated with a vortex flowmeter, flow information of a measured medium is obtained through the vortex flowmeter, and the steel pipe cable is adopted for transmitting the downholestratification flow and stratification pressure data to the computer through the ground control device during normal water injection; the distribution and injection amount of a current layer is set through the computer, and real-time adjustment is conducted by comparing the transmission flow with the distribution and injection amount. The provided cable-controlled intelligent stratification waterinjection technique tubular column can not only meet the intelligent deployment of distribution and injection wells, reduce the phenomenon of nonuniform water absorption between layers and greatly improve the recovery efficiency but also automatically measure and adjust the downhole sub-section flow, store production data in real time and conduct stratum pressure reduction tests.

Description

technical field [0001] The invention belongs to the technical field, and in particular relates to a cable-controlled intelligent layered water injection device system and a construction process thereof. Background technique [0002] Oilfield water injection is one of the most widely used, most effective and most economical measures to increase and stabilize production during oilfield development. With the increasing demand for oilfield development; water injection technology is constantly upgraded; in order to effectively solve the differences between layers and layers; the downhole layered water injection technology is proposed to achieve balanced injection-production development; maximize the reservoir swept volume; improve oilfield recovery yield. Currently commonly used layered water distributors are all mechanical underground water distribution structures. Although layered water injection technology can be realized, there are problems such as complex manual constructio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/20E21B47/00E21B47/06E21B47/12H01R13/02H01R13/502
CPCH01R13/02H01R13/502E21B43/20E21B47/00E21B47/06E21B47/12
Inventor 胡改星姚斌姬振宁于九政杨玲智王子建孙爽刘延青毕福伟王薇
Owner PETROCHINA CO LTD
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