Aliphatic acid lubricant for petroleum drilling fluid

Abstract

The invention discloses an aliphatic acid lubricant for petroleum drilling fluid and a preparation technology of the aliphatic acid lubricant, which are of a recycling technology and belong to the field of environment-friendly oilfield chemical new materials. The aliphatic acid lubricant for petroleum drilling fluid is characterized by being prepared by adopting industrial and agricultural byproducts and residua as main materials through a unique processing technology. The aliphatic acid lubricant for petroleum drilling fluid is used for lubricating a drill and a drilling rig, capable of reducing friction coefficient with the well wall and effectively improving quality of a water-based drilling fluid mud cake, and has anti-seize and fluid loss reducing capacities. The aliphatic acid lubricant for petroleum drilling fluid is applicable to preparation of various water based drilling fluids, in particular to various drilling fluid systems and high-density drilling fluid systems constructing under low temperature. The aliphatic acid lubricant for petroleum drilling fluid comprises the following components in parts by weight: natural mixed aliphatic acid 7-10%, rice bran oil 85-90% and polyol and amine compound 3-5%.

Description

Technical field: [0001] The invention relates to a fatty acid lubricant for petroleum drilling fluid and a preparation process thereof. Background technique: [0002] The lubricants used in existing petroleum drilling are either chemically synthesized preparations or substitutes (such as white oil, diesel oil, etc.), which have disadvantages such as low active ingredients, poor lubricating performance, high cost, polluting the environment, and being poisonous to operators. . The fatty acid lubricant for petroleum drilling fluid of the present invention is an environment-friendly lubricant made by a special process using non-toxic natural mixed fatty acids as the main raw material. A non-toxic, non-fluorescent, and well-compatible lubricant for drilling fluids; the product can be degraded by natural microorganisms, and has the characteristics of non-toxic, non-polluting, non-corrosive, good lubricating performance, and high temperature resistance. Invention content: [00...

AI Technical Summary

Problems solved by technology

[0002] The lubricants used in existing petroleum drilling are either chemically synthesized preparations or substitutes (such as white oil, diesel oil, etc.), which have disadvantages such as low active ingredients, poor lubricating performance, high cost, polluting the environment, and being poisonous to operators.