High-density low-friction fracturing fluid
A fracturing fluid and low-friction technology, applied in drilling compositions, chemical instruments and methods, etc., can solve the problems of increased formation damage, prolonged cross-linking time, and high cost of bromine salts, and achieves low formation damage, Inexpensive, good compatibility
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Embodiment 1
[0043] (1) Fracturing fluid formula 1 of the present invention (density is 1.16g / cm 3 )
[0044] Weighting agent sodium nitrate weight ratio: 20%
[0045] Thickener hydroxypropyl guar gum weight ratio: 0.50%
[0046] Drainage aid gemini surfactant weight ratio: 0.5%,
[0047] pH regulator Na 2 CO 3 Weight ratio: 0.1%
[0048] Fungicide dodecyltrimethylammonium chloride weight ratio: 0.15%
[0049] Clay stabilizer polyquaternium weight ratio: 0.5%
[0050] The temperature stabilizer is a compound formed by triethanolamine, methanol and polyoxyethylene sorbitan monolaurate Weight ratio: 0.5%
[0051] Water: 77.75%.
[0052] (2) Preparation of 1000g of the above-mentioned aggravated fracturing fluid
[0053]Add 777.5g of water to the waring mixer, then add 200g of sodium nitrate, start the mixer to fully dissolve it; add 5.0g of thickener hydroxypropyl guar gum under continuous stirring, swell for 30 minutes and thicken, then add 1g of sodium carbonate in turn , fungici...
Embodiment 2
[0057] (1) Fracturing fluid formula 2 of the present invention (density is 1.30g / cm 3 )
[0058] Weighting agent sodium nitrate weight ratio: 40%
[0059] Thickener hydroxypropyl guar gum weight ratio: 0.52%
[0060] Drainage aid gemini surfactant weight ratio: 0.5%,
[0061] pH regulator Na 2 CO 3 Weight ratio: 0.1%
[0062] Fungicide dodecyltrimethylammonium chloride weight ratio: 0.15%
[0063] Clay stabilizer polyquaternium weight ratio: 0.5%
[0064] Temperature stabilizer triethanolamine, methanol and polyoxyethylene sorbitan monolaurate compound weight ratio: 0.5%
[0065] Water: 57.73%.
[0066] (2) Preparation of 1000g of the above-mentioned aggravated fracturing fluid
[0067] Add 577.3g of water to the waring mixer, then add 400g of sodium nitrate, start the mixer to fully dissolve it; add 5.2g of thickener hydroxypropyl guar gum under continuous stirring, swell for 30 minutes and thicken, then add sodium carbonate 1.0 g, fungicide dodecyltrimethylammonium...
Embodiment 3
[0072] (1) Fracturing fluid formula three of the present invention (density is 1.35g / cm 3 )
[0073] Weighting agent sodium nitrate weight ratio: 46.5%
[0074] Thickener hydroxypropyl guar gum weight ratio: 0.55%
[0075] Drainage aid gemini surfactant weight ratio: 1.0%,
[0076] pH regulator Na 2 CO 3 Weight ratio: 0.15%
[0077] Fungicide dodecyltrimethylammonium chloride weight ratio: 0.15%
[0078] Clay stabilizer polyquaternium weight ratio: 1.0%
[0079] Temperature stabilizer organic amine compound weight ratio: 1.0%
[0080] Water: 49.65%.
[0081] (2) Preparation of 1000g of the above-mentioned aggravated fracturing fluid
[0082] Add 496.5g of water to the waring mixer, then add 465g of sodium nitrate, start the mixer to fully dissolve it; add 5.5g of thickener hydroxypropyl guar gum under continuous stirring, swell for 30min and thicken, then add sodium carbonate 1.5g g, fungicide dodecyltrimethylammonium chloride 1.5g, clay stabilizer polyquaternium 10....
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