CAJ | 학술논문

火山岩储层属于特低渗透率气藏，但是由于具有较多的天然气孔，裂缝发育，因此可进行工业化开发。气水相对渗透率曲线在气藏开发的动态分析和数值模拟中是一项重要的参考资料。以吉林某火山岩气藏岩心为例，使用非稳态气驱水法，测定并绘制了火山岩岩心的气水相对渗透率曲线。结果表明，束缚水饱和度、残余气饱和度及等渗点处含水饱和度均较高，等渗点处相对渗透率较低，端点处水相相对渗透率较低；围压及驱替压差对结果有重要影响；火山岩储层非均质性严重。
화산암저층속우특저삼투솔기장，단시유우구유교다적천연기공，렬봉발육，인차가진행공업화개발。기수상대삼투솔곡선재기장개발적동태분석화수치모의중시일항중요적삼고자료。이길림모화산암기장암심위례，사용비은태기구수법，측정병회제료화산암암심적기수상대삼투솔곡선。결과표명，속박수포화도、잔여기포화도급등삼점처함수포화도균교고，등삼점처상대삼투솔교저，단점처수상상대삼투솔교저；위압급구체압차대결과유중요영향；화산암저층비균질성엄중。
Volcanic-rock reservoir belongs to extremely low permeability gas reservoir.However,as with natural holes and rifts,it can be for industrial development.Relative permeability curve is an important data for dynamic analysis and numerical simulate of gas reservoir development.It illustrated by the case of a Jilin Province's volcanic-rock gas reservoir,and measured the relative permeability curve by unsteady-state water displacement by gas.The results show:It had a high bound water saturation,residual gas saturation and water saturation in isotonic point;it also had a low relative permeability in isotonic point and a low water relative permeability in endpoint;confining pressure and displacement pressure had a significant impact to the results;volcanic-rock reservoir had a serious heterogeneity.