Cable digital layering injection ground control system

A ground control and ground controller technology, which is applied in the fields of production fluids, wellbore/well components, earthwork drilling, etc. problems, to achieve the stability of the communication process, reduce the risk of blocking the card, and realize the effect of direct data reading and real-time control

Inactive Publication Date: 2016-02-03
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the difficulty of measuring and adjusting during the test and allocation process of steel wire or cable operation in the prior art, and it is impossible to check the historical allocation data, and it is impossible to clearly grasp the real water injection dynamics of the water injection well

Method used

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  • Cable digital layering injection ground control system
  • Cable digital layering injection ground control system

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Experimental program
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Embodiment 1

[0023] Such as figure 1 and figure 2 As shown, the present invention provides a cabled digital dispensing ground control system, comprising an oil pipe 3 and a cabled digital water distributor 4 connected to the oil pipe 3, and the cabled digital water distributor 4 communicates with the ground through a cable. The ground controller 2 on the ground is electrically connected, and the ground controller 2 is electrically connected with the upper computer 1;

[0024] The cable digital water distributor 4 is provided with a cable digital water distributor communication module 9, a cable digital water distributor main control module 8, and a flow control module 10, which are electrically connected in sequence;

[0025] The ground controller 2 includes a power supply module 5, a ground main control module 6, and a ground communication module 7, and the upper computer 1, the ground main control module 6, the ground communication module 7, and the cable digital water distributor comm...

Embodiment 2

[0036] The main control module 6 on the ground and the main control module 8 of the cable digital water distributor all adopt the SM201 type main control module. The flow control module 10 is a DG4V3S-2A-MUH5-60 type flow control module. The ground communication module 7 and the cable digital water distributor communication module 9 all adopt one of WLAN, NFC, WIFI-Dircet, bump, 2G, 4G, Bluetooth, wifi, zige-bee, GPRS, 3G, and USB modules .

[0037] The cabled digital injection ground control system provided by the present invention has the functions of automatic adjustment of the injection volume of each layer, real-time monitoring and storage of downhole pressure, temperature and flow parameters, and automatic downhole sealing inspection. The ground controller is connected to the cabled digital water distributor through a cable, and the cable is used for two-way transmission of data and instructions to realize direct data reading and real-time control. At the same time, the...

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Abstract

The invention provides a cable digital layering injection ground control system. The system comprises an oil pipe and a cable digital water distributor connected to the oil pipe. The cable digital water distributor is electrically connected to a ground controller on the ground through a cable. The ground controller is electrically connected to a host computer. The cable digital layering injection ground control system can automatically adjust injection volumes for all layers, can monitor and store downhole pressure, temperature and flow parameters in a real-time manner, and can automatically perform downhole sealing examination. The ground controller is connected to the cable digital water distributor through the cable, and two-way transmission between data and instructions is carried out through the cable, so that the data can be directly read and can be controlled in a real-time manner, and a cable communication process is stable and reliable. During a testing and allocating process, a testing and allocating instrument is not required to be butt jointed with the water distributor, water volumes are automatically adjusted directly through a ground control downhole flow control system, and blocking and clamping risks during a construction process are reduced.

Description

technical field [0001] The invention belongs to the technical field of oilfield water injection, and in particular relates to a cabled digital distribution injection ground control system. Background technique [0002] At present, steel wire operation and cable operation are mainly used for test deployment of layered water injection wells in oilfields. [0003] The steel wire operation is controlled by the control platform of the ground well testing vehicle, and the steel wire is pulled up and down repeatedly to replace the fixed water nozzle. The workload is heavy, and the ground can not control the downhole measuring and adjusting instrument in real time to achieve the synchronization of measuring and adjusting, and the success rate of lateral positioning and docking of the pulling and fishing instrument is low. . [0004] In the cable operation, the lifting and lowering of the cable is controlled by the control platform of the ground testing vehicle, and the opening of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/20
Inventor 杨玲智王守虎王俊涛于九政罗必林毕福伟胡改星
Owner PETROCHINA CO LTD
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