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Intelligent injection allocation process of water injection well

An intelligent and technological technology, applied in the direction of wellbore/well components, production fluids, instruments, etc., can solve the problems of increased testing workload and achieve the effects of saving conventional production testing costs, avoiding production testing, and avoiding interference

Active Publication Date: 2010-07-28
PETROCHINA CO LTD +1
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Problems solved by technology

[0002] At present, in the testing process where the test instrument is the main body, during the conventional string operation, the dead mouth is preset in the eccentric water distributor and goes downhole to complete the setting of the packer. After the setting is completed, the dead mouth is removed, and then each layer The seal inspection and the subsequent flow or pressure test can be carried out after the adjustable plugs are used for water injection. With the increase of water injection wells, the test workload will also increase significantly, and the existing team can no longer meet the requirements.

Method used

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Embodiment Construction

[0013] Below in conjunction with accompanying drawing, the present invention is further described: it is made up of computer 1, power cable 2, control main engine 3, oil pipe 4, dispensing instrument 5, packer 6, intelligent water distribution device 7 and bushing 8; wherein power cable 2 The upper end is connected to the control host 3, and the lower end is connected to the dispensing instrument 5. The intelligent dispensing instrument 5 is lowered into the intelligent water distribution device 7. The oil pipe 4 is connected to the packer 6 through a screw thread, and the packer 6 and the intelligent water distribution device 7 pass through. Threaded connection, oil pipe 4, packer 6 and intelligent water distribution device 7 have casing 8 outside; this process is realized through the following steps:

[0014] a. First, connect the tubing 4, packer 6, and intelligent water distribution device 7 and run them into the casing 8. At the same time, each intelligent water distributi...

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Abstract

The invention relates to the technical field of oil production engineering in the oil field, and belongs to an intelligent injection allocation process of a water injection well. The invention is designed for solving the disadvantages that an adjustable stopper needs to be thrown and caught and adjusted repeatedly in the testing and the testing work load is high. In the invention, an intelligent water distribution device 7 is provided with an automatic control system, a data acquisition system and an automatic regulating valve system, and meanwhile, the intelligent water distribution device 7can automatically collect the flow rate, temperature and pressure data in each intelligent injection ground layer through the data acquisition system when working under the ground, and the data is fed back to the automatic control system; the automatic regulating valve adjusts the current flow rate, so as to lead the flow rate to meet the injection allocation scheme. The intelligent injection allocation process of the water injection well has advantages that various characteristic parameters of the underground water injection well can be dynamically monitored and the expenses of a great quantity of conventional production tests are saved.

Description

Technical field: [0001] The invention relates to the technical field of oil production engineering in oilfields, and belongs to an intelligent dispensing technology for water injection wells. Background technique: [0002] At present, in the testing process where the test instrument is the main body, during the conventional string operation, the dead mouth is preset in the eccentric water distributor and goes downhole to complete the setting of the packer. After the setting is completed, the dead mouth is removed, and then each layer The seal inspection and subsequent flow or pressure test can be carried out after the adjustable plugs are put into the water injection respectively. With the increase of water injection wells, the test workload will also increase significantly, and the existing team can no longer meet the requirements. In order to shorten the test period, reduce the workload, improve the qualified rate of water injection, and realize the full automation of wate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/20G05B15/02
Inventor 刘合杨野王凤山张书进赵明鑫马强
Owner PETROCHINA CO LTD
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