A kind of raw material composition for coating agent, coating agent and its preparation method and application

A technology of raw material composition and coating agent, applied in the direction of drilling composition, chemical instruments and methods, etc., can solve the problems of slow dissolution rate, poor shear resistance, unstable drilling fluid system, etc., and achieve fast dissolution rate , high dynamic shear force, good application prospect and application value
CN113265232BActive Publication Date: 2021-09-28SHANDONG NUOER BIOLOGICAL TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANDONG NUOER BIOLOGICAL TECH
Publication Date
2021-09-28

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Abstract

The present invention relates to the technical field of polymer additives in petrochemical industry, in particular to a raw material formula for a coating agent, a coating agent and its preparation method and application, the material formula of the coating agent includes acrylamide monomers, the The raw material formula for the coating agent also includes the following components: physical mixing components, chemical adjustment components and initiators; the acrylamide monomer is used as a component in the physical mixing components; the chemical adjustment components Including oxidant, polymerization inhibitor, chelating agent and molecular weight regulator; the initiator is a high-temperature initiator; the coating agent prepared by the raw material formula for the coating agent provided by the present invention has low plastic viscosity and high dynamic shear force , strong coating inhibition, good shear resistance, and fast dissolution speed. Compared with other types of coating agents, it has better comprehensive performance. When used in drilling fluids in the petroleum field, the High value and wide application prospect.
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Description

technical field

[0001] The invention relates to the technical field of polymer additives in petrochemical industry, in particular to a raw material formula for a coating agent, a coating agent and a preparation method and use thereof. Background technique

[0002] Drilling fluid is the "blood" of drilling and plays a very important role in drilling operations. The coating agent for drilling fluid is a kind of macromolecular polymer. few components.

[0003] CN103952126B discloses a salt-resistant coating agent for drilling fluid and a preparation method thereof. Three monomers acrylamide, acrylic acid, dimethyl diallyl ammonium chloride and sodium silicate are dissolved in water, and the pH value is adjusted to 8 to 12 to prepare an aqueous solution; add the aqueous solution to the reactor, and maintain 10 minutes with nitrogen gas; add the initiator to the reactor, and react for 2 to 8 hours at 20 to 50 ° C; The glue solution was dried in an oven at a temperature of 90° C...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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