摘要
在裂缝和溶蚀孔洞发育的碳酸盐岩储层中,找出正确评价碳酸盐岩储层渗透率的方法尤为重要。运用LEAD软件提取多极阵列声波测井(XMAC)资料低频斯通利波、纵波和横波,结合常规测井井径、密度资料,在经波场分离、合成斯通利波波形、计算斯通利波的到时延迟和主频移动后得到地层的渗透率,并把它与常规计算渗透率进行对比,渗透率精度有明显提高。该技术在大港油田沙三5段碳酸盐岩中的成功应用证明了其有效性,为油田增储上产提供技术支持。
It is very important to find out the correct evaluation method of carbonate reservoir permeability in the reservoirs of fracture and solution pore development. With LEAD software multipole array acoustic logging(XMAC) data can be extracted into low frequency Stoneley wave, compressional wave and shear wave, which is combined with conventional caliperlog, density and porosity data, etc, to form synthesized Stoneley wave shape after wave field separation. Formation permeability can be obtained from calculating the delay and frequency shift of Stoneley wave. The permeability precision is improved obviously comparing with conventional calculated permeability.The successful application of Sashan 5 carbonate reservoirs in Dagang oilfield has proved the technology is effective and can provide technical support for increasing reserves and production of the oilfield.
出处
《国外测井技术》
2015年第1期38-41,4,共4页
World Well Logging Technology
关键词
碳酸盐岩
斯通利波
波场分离
渗透率
carbonate
Stoneley
wavefield separation
permeability
