Selective water-blocking, oil-permeable and sand-preventing proppant as well as preparation method and application thereof

• Main Authors: LI HONGYING, MAO JUN, SUN SHIYI, LIU WEI, GUO LING, ZENG LIGUI, XU BO, ZOU JIHUI, ZHU HONGLIANG, TANG MING, SHAN ZHONGLI, ZHU JUNFENG, LIU ZHUANYANG, JIA YONGWEI, SHEN HONGYAN, RAO DELIN, WANG SHANQIANG, ZHANG PIAOSHI
• Format: Patent
• Language: Chinese; English
• Published: 20.04.2016
• Subjects: ADHESIVES; CHEMISTRY; DYES; EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MINING; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS; PAINTS; POLISHES

The invention provides a selective water-blocking, oil-permeable and sand-preventing proppant as well as a preparation method and an application thereof. The proppant comprises ceramsite and a hydrophobic and oleophylic resin film coating the surface of the ceramsite, and the selective water-blockin...