四川文理学院学报
四川文理學院學報
사천문이학원학보
SICHUAN UNIVERSITY OF ARTS AND SCIENCE JOURNAL
2012年
5期
62-65
,共4页
孔喉半径%特征参数%毛细管压力曲线%气藏
孔喉半徑%特徵參數%毛細管壓力麯線%氣藏
공후반경%특정삼수%모세관압력곡선%기장
radius of pore throat%characteristic parameters%capillary,pressure curve%gas reservoir
根据确定的含油气岩石孔喉半径下限的认识，岩石中大于含油气岩石孔喉半径下限的孔喉体积才有储集油气的可能，而小于岩石孔喉半径下限的孔喉体积不能储集油气．由岩石毛细管压力曲线确定的含气岩石中大于0．075μm孔喉体积百分数这个参数，能够在储集岩评价、孔隙度下限确定、束缚水饱和度确定等方面提供重要依据．．
根據確定的含油氣巖石孔喉半徑下限的認識，巖石中大于含油氣巖石孔喉半徑下限的孔喉體積纔有儲集油氣的可能，而小于巖石孔喉半徑下限的孔喉體積不能儲集油氣．由巖石毛細管壓力麯線確定的含氣巖石中大于0．075μm孔喉體積百分數這箇參數，能夠在儲集巖評價、孔隙度下限確定、束縳水飽和度確定等方麵提供重要依據．．
근거학정적함유기암석공후반경하한적인식，암석중대우함유기암석공후반경하한적공후체적재유저집유기적가능，이소우암석공후반경하한적공후체적불능저집유기．유암석모세관압력곡선학정적함기암석중대우0．075μm공후체적백분수저개삼수，능구재저집암평개、공극도하한학정、속박수포화도학정등방면제공중요의거．．
According to the knowledge about floor of pore radius of rocks containing oil and gas, it is only possible that reservoir pore and throat volumes with pore and throat size limit greater than floor of rocks＇ pore radius can hold oil and gas, while pore and throat volumes lower than the floor can not store oil and gas. The parameter determined by capillaly pressure curve is a percentage of pore and throat volumes composed by pore and throat size limit, which is greater than 0.075 Ixm in gas rock, which has provid- ed great evidence to evaluate the reservoir rock, determine the floor of porosity and predict the irreducible water saturation.
