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Oilfield formation supermolecular blocking removal and permeation increasing agent and blocking removal and permeation increasing system and utilization method thereof

A supramolecular and permeability enhancer technology, applied in chemical instruments and methods, earthwork drilling, cleaning tools, etc., can solve the problems of oil layer blockage, decrease in permeability, decrease in oil production, etc., and achieve enhanced stability, enhanced composite utility, the effect of improving the liquidity of crude oil

Inactive Publication Date: 2019-03-12
金保全
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AI Technical Summary

Problems solved by technology

Scale and wax formation are immiscible phase boundaries, which can easily cause clogging of the oil layer, decrease the permeability, and lead to a decrease in oil production

Method used

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  • Oilfield formation supermolecular blocking removal and permeation increasing agent and blocking removal and permeation increasing system and utilization method thereof

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Embodiment Construction

[0013] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0014] The supramolecular plugging-removing and permeability-enhancing agent for oilfield formations provided by the present invention comprises the following components in weight percent: 10%-15% of dioctyl sulfosuccinate sodium salt, 1%-5% of nitrilotriacetic acid sodium salt, Tetrasodium iminodisuccinate 1%~5%, sodium polyacrylate 5%~10%, polye...

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Abstract

The invention discloses an oilfield formation supermolecular blocking removal and permeation increasing agent and a blocking removal and permeation increasing system and a utilization method thereof.The oilfield formation supermolecular blocking removal and permeation increasing agent is prepared from, by weight, 10%-15% of sulfonated sodium dioctyl succinate, 1%-5% of trisodium nitrilotriacetate, 1%-5% of tetrasodium iminodisuccinate, 5%-10% of sodium polyacrylate, 5%-10% of polyepoxysuccinic acid and the balance water. By the oilfield formation supermolecular blocking removal and permeationincreasing agent, a blocking removal and permeation increasing radius can be safely increased, formation permeability and crude oil fluidity are improved, quick cleaning of an oil well is realized, the oil well recovery rate is increased, and oil-gas output is increased.

Description

technical field [0001] The invention relates to the technical field of chemical industry, in particular to a supramolecular plugging-removing and seepage-enhancing agent for oilfield formations, a plugging-removing and seepage-enhancing system and a use method thereof. Background technique [0002] In the process of oil field exploitation, because the oil well is thousands of meters deep into the underground rock formation, the water temperature is high, the salinity is high, the cross flow and the temperature difference change when the oil layer twitches, the oil well is very easy to scale, wax and corrode. Scale and wax formation are immiscible phase boundaries, which can easily cause clogging of the oil layer, decrease the permeability, and lead to a decrease in oil production. How to design a technology that can safely expand the radius of plugging removal and increase permeability, improve formation permeability and crude oil fluidity in a larger range, so as to improve...

Claims

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Application Information

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IPC IPC(8): C09K8/52E21B37/06
CPCC09K8/52C09K2208/32E21B37/06
Inventor 金保全
Owner 金保全
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