Non-resin type profile control agent and application thereof in petroleum exploitation process

A technology of profile control agent and resin type, which is applied in the field of non-resin type profile control agent and its application in the process of oil exploitation, and can solve the problems of poor application effect of oily sludge profile control agent and so on

Active Publication Date: 2016-03-02
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to provide a non-resin type profile control agent and its application in the oil exploitation process to solve the problem of poor application effect of oily sludge profile control agent in the prior art

Method used

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  • Non-resin type profile control agent and application thereof in petroleum exploitation process
  • Non-resin type profile control agent and application thereof in petroleum exploitation process
  • Non-resin type profile control agent and application thereof in petroleum exploitation process

Examples

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preparation example Construction

[0036] The preparation process of profile control agent is as follows: figure 2 As shown, the specific process is as follows: implementation steps: the oily sludge is transported to the profile control well site collection tank 21, and the dispersant, optional retarder and curing agent are added to the oily sludge, and fully stirred evenly in the mixing tank 23, while injecting water for dilution and aging. After the prepared oily sludge profile control agent is filtered through the filter 24 to remove large particle impurities, it is pumped into the water injection well 26 by the hydraulic reinjection pump 25 .

[0037] During the injection of the profile control agent, the injection pump is preferably a TPB hydraulic profile control injection pump. The TPB hydraulic profile control injection pump converts the high-speed rotating mechanical energy of the motor into the pressure energy of the hydraulic oil through the constant power variable oil pump, and then converts the p...

Embodiment 1

[0053] In this embodiment, the oily sludge is first prepared into the first suspension slurry with a suspended matter concentration of 12wt%, which consists of 0.2% sodium dodecylsulfonate (emulsifier), 0.2% polyacrylamide (suspension agent) ). The first profile control agent is prepared by using the first suspension slurry.

[0054] In this embodiment, the oily sludge is first prepared into the second suspension slurry with a suspended matter concentration of 10wt%, which consists of 0.1% sodium dodecylsulfonate (emulsifier), 0.1% polyacrylamide (suspension agent) ). The second profile control agent and the third profile control agent are prepared by using the second suspension slurry.

[0055] Three-slug profile control technology is adopted. The first profile control agent comprises the oily sludge of 3g, sodium hexametaphosphate (dispersant) of 0.15g, sodium silicate (solidifying agent) of 0.5g, sodium dodecylsulfonate (emulsifying agent) of 0.05g, 0.05g of polyacrylam...

Embodiment 2

[0057]In this embodiment, the oily sludge is first prepared into the first suspension slurry with a suspended matter concentration of 10wt%, which consists of 0.25% sodium dodecylsulfonate (emulsifier), 0.25% polyacrylamide (suspension agent) ). The first profile control agent is prepared by using the first suspension slurry.

[0058] In this embodiment, the oily sludge is first prepared into the second suspension slurry with a suspended matter concentration of 20wt%, which consists of 0.375% sodium dodecylsulfonate (emulsifier), 0.25% polyacrylamide (suspension agent) ). The second profile control agent is prepared by using the second suspension slurry.

[0059] In this embodiment, the oily sludge is first prepared into the third suspension slurry with a suspended matter concentration of 20wt%, which consists of 0.2% sodium dodecylsulfonate (emulsifier), 0.34% polyacrylamide (suspension agent) ). The third profile control agent is prepared by using the third suspension sl...

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Abstract

The invention provides a non-resin type profile control agent and application thereof in a petroleum exploitation process. The profile control agent comprises, by weight, 1-15% of oily sludge, 0.01-0.3% of an emulsifier, 0.01-0.15% of a suspending agent, 0.1-0.5% of a dispersant, 0.1-5% of a curing agent and 79.1-98.5% of water, and the suspending agent is an organic polymer. The profile control agent provided by the invention has good profile control performance, and is easy to use.

Description

technical field [0001] The invention relates to the field of petroleum exploitation, in particular to a non-resin type profile control agent and its application in the petroleum exploitation process. Background technique [0002] The main sources of oily sludge produced in the oil production process are tank bottom sludge and pool bottom sludge. Oily sludge, especially the oily sludge produced by the sedimentation tank of the heavy oil combined station has the characteristics of bulky, high viscosity, poor fluidity, high oil content and difficult conventional gathering and transportation operations. If it is not treated and discharged directly, it will not only occupy a lot of cultivated land , and will cause pollution to the surrounding soil, water, and air, such as accompanied by odorous gas, and the sludge contains a large number of pathogenic bacteria, parasites (eggs), copper, zinc, chromium, mercury and other heavy metals, salts and polychlorinated Toxic and harmful s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/508E21B33/138
CPCC09K8/5083E21B33/138
Inventor 里群
Owner 里群
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