摘要
火成岩储层具有双重孔隙的特点,渗透率计算是其评价难点之一。为提高地层渗透率的计算精度,从偶极声波成像测井(DSI)资料中提取了斯通利波、纵波和横波,并结合井径、密度及孔隙度等资料计算出了流体移动指数(QFM),并建立了QFM与地层总有效渗透率的关系,进而估算出地层渗透率。该技术在松辽盆地深层火成岩中的成功应用证明了其有效性,从而可为类似油田的开发提供技术支持。
Igneous reservoir is characterized by dual porosity. Permeability calculation is one of the difficulties in volcanic reservoir evaluation. In order to enhance the accuracy of permeability calculation, Stoneley wave, compression wave and shear wave were picked out from the dipole shear wave image logging. In combination with borehole diameter, formation density and porosity curve, the theoretical Stoneley moveout was calculated. The difference between the measured Stoneley moveout and the calculated theoretical Stoneley moveout is defined as qualitative indicator of fluid mobility which can indicate the permeability and pore connectivity of reservoir and validation of fracture. The relationship between the qualitative indicator of fluid mobility and the total effective permeability can be used to estimate igneous formation permeability. The actual application in deep igneous rock of Songliao Basin proves the validity of this method.
出处
《岩性油气藏》
CSCD
2013年第1期107-110,共4页
Lithologic Reservoirs
基金
国家科技重大专项"大陆边缘盆地复杂岩性地层测井评价技术研究"(编号:2011ZX05030-004-004)资助
关键词
火成岩
斯通利波
流体移动指数
渗透率
igneous rocks
Stoneley wave
qualitative indicator of fluid mobility
permeability
