发明授权
US08932997B2 Anti-accretion agents for drilling fluids 有权
用于钻井液的抗增吸剂

Anti-accretion agents for drilling fluids
摘要:
Esters of alkanolamines with unsaturated, polyunsaturated or saturated C8-C36 monocarboxylic acids are additives for reducing accretion on drilling equipment (anti-accretion agents) to be used in drilling muds during drilling and completion of oil and gas wells.
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