Drag reducer with high stability as well as preparation method and application thereof
A drag reducer and surfactant technology, applied in the field of drag reducer and its preparation, can solve the problems of unfavorable long-term storage and long-distance transportation, low selectivity of slippery aquatic products, inconvenient on-site preparation and use, etc., to meet the requirements of Long-term storage and long-distance transportation, improved sand-carrying capacity and salt tolerance, and convenient on-site use
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[0030]Example 1
[0031]This embodiment provides a drag reducer suitable for preparing oilfield slick water fracturing fluid, which is prepared from the following parts by weight of raw materials:
[0032]40 parts of deionized water, 45 parts of acrylamide monomer, 2 parts of crosslinking agent, 1 part of fatty alcohol polyoxyethylene ether, 1 part of polyisobutylene polysuccinimide, 40 parts of white oil, 30 parts of sorbitol Fatty acid ester Span-80, 11 parts of polyoxyethylene sorbitan fatty acid ester Tween-80, 0.8 part of sodium ethylenediaminetetraacetate, 0.655 part of initiator, the initiator is composed of sodium bisulfite and ammonium sulfate. The mass ratio of sodium bisulfate and ammonium sulfate is 1:1.
[0033]The above-mentioned raw material components are prepared by the following methods to obtain drag reducers:
[0034]Step 1: Preparation of aqueous solution
[0035]Add 400kg of deionized water to a clean stainless steel reactor, start stirring, control the stirring speed to 70~8...
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