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High performance cleanup additive for oil and gas well and method for making same

A drainage aid, oil and gas well technology, applied in chemical instruments and methods, earthwork drilling, wellbore/well components, etc., to achieve the effects of good wettability, high thermal stability, and low dosage

Inactive Publication Date: 2007-05-02
梁利平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Drainage aids for oil and gas wells are mainly used to reduce the surface tension of the working fluid and the interfacial tension of oil and water during fracturing and acidification of oil and gas wells, and the interfacial tension of oil and water. Reaching 5mN / m cannot completely solve the essential problems of high surface tension of the working liquid and high interfacial tension of oil and water

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Heat the main ingredient anion (28%) and nonionic surfactant (42%) to 60°C under normal pressure, mix and react for 3 hours, then dissolve the auxiliary anionic surfactant (22%) in ethanol evenly before adding In the main ingredient, stir and mix evenly, then add other additives (8%), stir and mix evenly again, and the preparation is completed.

Embodiment 2

[0019] Heat the main ingredient anion (33%) and nonionic surfactant (37%) to 70°C under normal pressure, mix and react for 3 hours, then dissolve the auxiliary anionic surfactant (25%) in ethanol evenly before adding In the main ingredient, stir and mix evenly, then add other additives (5%), stir and mix evenly again, and the preparation is completed.

[0020] project

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PUM

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Abstract

The invention relates to a high performance cleanup additive for oil and gas well and method for making which comprises the steps of, heating host crystal anion (25%-35%) and non-ionic surface active agent (35%-45%) to 50-90 deg. C for mixing and reaction 3h, dissolving the anionic surface active agent with alcohols and charging into host agent, stirring, mixing uniformly and charging other auxiliary agent (5-10%), stirring again and mixing homogeneously.

Description

1. Technical field: [0001] The invention relates to an additive for oil and gas wells, in particular to a high-efficiency drainage aid for oil and gas wells and a preparation method thereof. 2. Background technology: [0002] Drainage aids for oil and gas wells are mainly used to reduce the surface tension of the working fluid and the interfacial tension of oil and water during fracturing and acidification of oil and gas wells, and the interfacial tension of oil and water. Reaching 5mN / m cannot completely solve the essential problems of the surface tension of the working liquid and the high interfacial tension of oil and water. 3. Contents of the invention: [0003] In order to solve the deficiencies in the above-mentioned background technology, the present invention provides a high-efficiency drainage aid for oil and gas wells and a production method thereof, which can significantly reduce the surface tension of the working liquid and the interfacial tension of oil and wa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K8/60E21B43/22
Inventor 梁利平
Owner 梁利平
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