While-drilling blocking agent capable of resisting high temperature of 220 DEG C for drilling fluid and preparation method of while-drilling blocking agent

The invention discloses a while-drilling blocking agent capable of resisting high temperature of 220 DEG C for drilling fluid and a preparation method of the while-drilling blocking agent. The while-drilling blocking agent is prepared from the following components in parts by weight: 10 to 15 parts...

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Bibliographic Details
Main Authors ZHAO CHANGLIANG, FU FAN, SHAN WENJUN, TAN XIANFENG, LI YANNING, LI XIAODONG, JI WEIJUN, XIONG ZHENGQIANG, TAO SHIXIAN
Format Patent
LanguageChinese
English
Published 25.07.2017
Subjects
ADHESIVES
CHEMISTRY
DYES
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
PAINTS
POLISHES
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Summary:The invention discloses a while-drilling blocking agent capable of resisting high temperature of 220 DEG C for drilling fluid and a preparation method of the while-drilling blocking agent. The while-drilling blocking agent is prepared from the following components in parts by weight: 10 to 15 parts of rigid particles, 40 to 50 parts of a fiber material, 20 to 30 parts of deformable particles, 15 to 20 parts of a shield filtrate loss reduction material and 5 to 10 parts of a high-temperature protecting agent. The while-drilling blocking agent disclosed by the invention can resist the temperature of 220 DEG C, is good in high-temperature resistance and blocking performance, cannot affect the rheological property of the drilling fluid and is widely applicable to high-temperature dry hot rock, high-temperature geothermal and deep oil and gas drilling and deep scientific drilling. 本发明公开了种钻井液用抗220℃高温随钻封堵剂及其制备方法，由如下重量份数的组分组成：刚性颗粒10～15份，纤维材料40～50份，变形颗粒20～30份，屏蔽降滤失材料15～20份，高温保护剂5～10份。本发明的随钻封堵剂抗温达220℃，具有良好的抗高温封堵性能，而且不影
Bibliography:Application Number: CN20171241285