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Fracturing working liquid for container rock containing travertine

A technology of working fluid and tuff, applied in the field of fracturing fluid, can solve the problems of formation rock collapse, low fracture conductivity, construction failure, etc., and achieve the effect of reducing filtration loss, improving fracture-making ability, and reducing filtration loss.

Inactive Publication Date: 2005-09-07
DAQING OILFIELD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems that existing water-based fracturing fluids easily cause formation rock collapse, low fracture conductivity and sometimes construction failure during fracturing construction, the present invention provides a fracturing fluid applied to tuffaceous lithologic reservoirs. The fracturing working fluid in the fracture (hereinafter referred to as NH fracturing fluid), the fracturing working fluid can improve rock stability, reduce fluid loss, increase flowback, reduce damage, ensure successful construction and improve the effect of measures

Method used

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  • Fracturing working liquid for container rock containing travertine
  • Fracturing working liquid for container rock containing travertine

Examples

Experimental program
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Effect test

Embodiment 1

[0020] Embodiment 1, 0.58% of hydroxypropyl modified guar gum, 0.135% of sodium perfluorooctanoate, 0.078% of polyoxypropylene polyoxyethylene polyoxypropylene stearyl ether, 1.82% of polyisopropanol dimethyl ammonium chloride, Glutaraldehyde 0.097%, Nonylphenol Polyoxyethylene Ether 0.0565%, Compound of Acetic Acid and Sodium Carbonate 0.0803%, Isopropanol 0.05%, Sodium Borate 0.15%, Sorbitol 0.0532%, Potassium Persulfate 0.00133%, The fracturing working fluid can be obtained after mixing 0.0002% of sodium sulfite, 3% of diesel oil and 93.86997% of water.

Embodiment 2

[0021] Example 2, 0.3% of guar gum, 0.06% of sodium perfluorooctanoate, 0.06% of polyoxypropylene polyoxyethylene polyoxypropylene stearyl ether, 0.2% of polyisopropanol dimethyl ammonium chloride, and 0.02% of glutaraldehyde %, nonylphenol polyoxyethylene ether 0.05%, compound of acetic acid and sodium carbonate 0.06%, isopropanol 0.02%, sodium borate 0.15%, sorbitol 0.02%, potassium persulfate 0.001%, sodium sulfite 0.0002%, The fracturing working fluid can be obtained after mixing 3% diesel oil and 96.1188% water.

Embodiment 3

[0022] Embodiment 3, 0.15% of hydroxypropyl modified guar gum, 0.5% of sodium perfluorooctanoate, 0.002% of polyoxypropylene polyoxyethylene polyoxypropylene stearyl ether, 10.0% of polyisopropanol dimethyl ammonium chloride, Glutaraldehyde 0.002%, nonylphenol polyoxyethylene ether 0.5%, acetic acid and sodium carbonate compound 0.002%, isopropanol 0.5%, organic boron and organic titanium compound 0.002%, sorbitol 0.5%, The fracturing working fluid can be obtained after mixing 0.002% of potassium persulfate, 0.1% of sodium sulfite, 1% of diesel oil and 85.736% of water.

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Abstract

The invention relates to a fracturing working liquid for container rock containing travertine, which comprises thickening agent 0.15-1.5%, surface active agent 0.002-0.5%, demulsifying agent 0.002-0.5%, clay stabilizer 0.01-10.0%, bactericidal agent 0.002-1.0%, emulsifying agent 0.002-0.5%, buffering agent 0.002-0.5%, defoaming agent 0.002-0.5%, cross linking agent 0.002-0.5%, cross linking control agent 0.002-0.5%, demulsifying agent 0.002-0.1%, catalyst 0.0002-0.1%, diesel fuel 1-90%, and balancing water.

Description

Technical field: [0001] The invention relates to a fracturing fluid in the field of oil production in oil fields, in particular to a fracturing working fluid used in fracturing of tuffaceous lithologic reservoirs. Background technique: [0002] With the demand for petroleum resources in the contemporary world economic development and the continuous improvement of exploration technology and exploration knowledge, complex lithologic reservoirs such as tuffaceous igneous rocks and shallow metamorphic rocks have been discovered successively in recent years, and have certain oil and gas shows. The natural production capacity of such reservoirs is low, and only through fracturing and stimulation can the ideal commercial reserves and production value be achieved. Fracturing fluid is a working fluid for fracturing construction, which is used to transfer energy during construction, open fractures in the oil layer, and transport proppant along the fractures, thereby forming a channel ...

Claims

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Application Information

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Inventor 韩松张浩张凤娟唐鹏飞谢朝阳
Owner DAQING OILFIELD CO LTD
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