Biolithite loss zone is a kind of special reservoirs where rock structure is frailish and lot of pore spaces and gas exist, while severe circulation loss and well blowout and well kick occur.

礁灰岩漏失层一类弱,并含有大量孔洞和气体的特殊层,常常严重井漏与天然气的井喷井涌并存。

According to the properties of lost circulation in the creviced formation, this paper presented a mathematical model of the lost circulation law.

本文根裂缝的漏失特性,建立了裂缝漏失规律的数学模型,并导出了各种流体在裂缝中的流动规律。