Oilfield profile and drive control blocking system, method and slug composition for blocking

A technology of profile control and flood control, which is applied in drilling compositions, chemical instruments and methods, earthwork drilling and production, etc., can solve the problems of one-way breakthrough of water injection wells, low sweep coefficient, uneven benefit of oil wells, etc., and achieve reduction Pollution, EOR effects

Active Publication Date: 2016-01-27
延安市奥维石油工程技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a plugging system for profile control and flooding in an oil field, which can transform the oily sludge into a profile control plugging agent and carry out deep profile control and flooding, and carry out oil field plugging, which not only solves the problem of injection in the prior art Water wells have one-way breakthrough, low sweep coefficient, uneven benefit from oil wells, and effective use of oily sludge, an oilfield waste

Method used

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  • Oilfield profile and drive control blocking system, method and slug composition for blocking

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Experimental program
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Effect test

Embodiment 1

[0102] The method of using the above-mentioned oilfield profile control, flooding and plugging system to carry out oilfield profile control, flooding and plugging is specifically carried out according to the following steps:

[0103] Step 1, prepare for oilfield profile control, flooding and plugging, specifically follow the steps below:

[0104] First, inject the oily sludge cleaned from the oil tank station into the sludge pool 1;

[0105] Then, use clear water to carry out trial injection, the specific method is to inject clear water from the clear water tank 3 into the stirring tank 5, then directly inject the clear water into the formation, measure the injected clear water through the flow meter 7, and use the pressure gauge 8 to measure the formation pressure. Real-time monitoring, real-time understanding of pressure changes, providing reference for injection of plugging agent construction, so as to control the injection speed and lifting pressure value of each slug acco...

Embodiment 2

[0139] The method of using the above-mentioned oilfield profile control, flooding and plugging system to carry out oilfield profile control, flooding and plugging is specifically carried out according to the following steps:

[0140] Step 1, prepare for oilfield profile control, flooding and plugging, specifically follow the steps below:

[0141] First, inject the oily sludge cleaned from the oil tank station into the sludge pool 1;

[0142] Then, use clear water to carry out trial injection, the specific method is to inject clear water from the clear water tank 3 into the stirring tank 5, then directly inject the clear water into the formation, measure the injected clear water through the flow meter 7, and use the pressure gauge 8 to measure the formation pressure. Real-time monitoring, real-time understanding of pressure changes, providing reference for injection of plugging agent construction, so as to control the injection speed and lifting pressure value of each slug acco...

Embodiment 3

[0176] The method of using the above-mentioned oilfield profile control, flooding and plugging system to carry out oilfield profile control, flooding and plugging is specifically carried out according to the following steps:

[0177] Step 1, prepare for oilfield profile control, flooding and plugging, specifically follow the steps below:

[0178] First, inject the oily sludge cleaned from the oil tank station into the sludge pool 1;

[0179] Then, use clear water to carry out trial injection, the specific method is to inject clear water from the clear water tank 3 into the stirring tank 5, then directly inject the clear water into the formation, measure the injected clear water through the flow meter 7, and use the pressure gauge 8 to measure the formation pressure. Real-time monitoring, real-time understanding of pressure changes, providing reference for injection of plugging agent construction, so as to control the injection speed and lifting pressure value of each slug accord...

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Abstract

The present invention discloses an oilfield profile and drive control blocking system which comprises a sludge pool, a clean water pool and a stirring pool. The sludge pool and the clean water pool are connected through a pipeline which is provided with a flow meter. The clean water pool is connected to the stirring pool through a clean water pipeline which is provided with a valve. The stirring pool is internally provided with a drug injection port and an output tube. The output tube is provided with the flow meter and a pressure meter. The output tube is connected to a water injection well and is provided with three output valves. The water injection well is communicated with a ground layer with the need of filling. The invention also relates to a method for using the oilfield profile and drive control blocking system to carry out oilfield profile and drive control blocking and a composition for each slug system in the oilfield profile and drive control blocking method. Oil-contained sludge can be transformed to make a profile control sealing agent and carry out deep drive control, the oilfield sealing is carried out, and the problems of oil injection well single direction onrushing, low sweep efficiency and uneven oilwell benefit are solved.

Description

technical field [0001] The invention belongs to the technical field of petroleum waste recycling equipment, and relates to a plugging system for profile control, flooding, and plugging in an oil field. A slug composition for plugging used in the method of regulating and flooding plugging. Background technique [0002] Oily sludge is an industrial waste associated with the dehydration process of crude oil. In the process of oilfield exploitation, the cuttings of the oil layer will inevitably be produced along with the crude oil production. my country's oilfields produce more than 5 million tons of oily sludge every year. How to scientifically and rationally process and utilize oily sludge is an urgent problem for major oilfields. one of the main problems. Conventional landfill not only occupies land resources, but also pollutes soil and groundwater resources, deteriorating the environment; burning treatment, high cost, easy to generate dust, waste gas, causing secondary envi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/20C09K8/512
Inventor 童雪晨宋成君张晓卫
Owner 延安市奥维石油工程技术有限公司
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