Leaking stoppage reinforcing agent
A technology of enhancer and content, which is applied in the field of drilling plugging agent, can solve the problems such as difficulty in controlling the amount of plugging slurry, complicated downhole conditions, and low strength of plugging agent, so as to meet the requirements of large-dose continuous construction and significant plugging Enhanced effect, good suspension and dispersion stability
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[0017] Specific examples are given below:
[0018] The first case
[0019] Urine formaldehyde resin 2; Phenolic resin 1; Slag 8; Calcium sulfate 1; Alumina 5; Calcium chloride 3; Calcium carbonate 10; Silica 10; Polyanionic cellulose PAC-LV 0.1; Sodium carboxymethyl cellulose CMC -LV 0.1. According to their composition and content, the above-mentioned substances are added to the reaction kettle in sequence and mixed for 6h by conventional preparation method under normal pressure at 30℃, then added to the kneader, mixed and stirred evenly, waited for it to dry, and crushed to a particle size of 0.01 mmmm powder products.
[0020] The plugging enhancer of the present invention is added to the plugging drilling fluid in a total amount of 2% of the total amount of the plugging drilling fluid.
[0021] Case 2
[0022] Urine formaldehyde resin 4; Phenolic resin 3; Slag 10; Calcium sulfate 3; Alumina 6; Calcium chloride 4; Calcium carbonate 13; Silica 13; Polyanionic cellulose PAC-LV 0.2; S...
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