The invention discloses an
emulsion type anti-wear and anti-drag
thickening agent for fracturing and a preparation method thereof, and the preparation method comprises the following steps: 1, preparation of a water phase: successively adding
acrylamide and
triethanolamine oleic
soap into water, and uniformly mixing; step 2, preparing an
oil phase, namely adding span 80 into
white oil, and then uniformly stirring and mixing; step 3, preparing an
emulsion, slowly adding the water phase in the step 1 into the
oil phase in the step 2 in a stirring state, and circularly emulsifying for 1-3 times by using a homogeneous emulsification pump after the water phase in the step 1 is completely added into the
oil phase in the step 2; and 4,
polymerization reaction: putting the
emulsion prepared in the step 3 into a reaction kettle with a stirrer, stirring, filling
nitrogen for more than 20 minutes, adding an oxidant, heating, and slowly dropwise adding a
reducing agent. When the emulsion type anti-wear and anti-drag
thickening agent for fracturing is used for preparing a
fracturing fluid, the thickening property is good, and the construction friction resistance is low; when used for preparing
coiled tubing construction liquid, the lubricating oil has good lubricating property and strong
wear resistance.