摘要
RMT(Reservoir Monitor Tool)测井受井眼流体、储层性质、套管沾污等因素影响较大,为提高RMT测井资料的解释精度,必须充分利用RMT测井资料的各种信息。介绍了RMT测井的几种实例。氧活化指数曲线OAI(Oxygen Activation Index)能够定性指示生产层出水层位,消除剩余油饱和度解释时大孔道造成的误解,识别由于固井质量差造成的管外窜槽;利用碳氧比曲线异常,识别静液面深度及井眼内油帽深;依据RMT测井曲线对煤层物理、化学性质的反映特性能够有效判断煤层;RMT测井中近与远探测器非弹计数率比(RIN)、近与远探测器俘获计数率比(RNF)、远探测器非弹与俘获计数率比(RICF)等辅助曲线随地层密度和孔隙度变化,通过曲线叠加能够定性识别气层。
To improve log interpretation accuracy, we must make full use of all kinds of RMT （Reservoir Monitor Tool） logging data information, because the logging method is influenced by the borehole fluid, reservoir properties, casing contamination and other factors. Several special applications of RMT logging are introduced, such as, oxygen activation index（OAI） curves can qualitatively indicate reservoir water-out layer, and eliminate the impact of macro-pore path on the residual oil saturation interpretation, and also identify outside casing channel. The depth of static liquid level and oil cap within the borehole can be confirmed by abnormality of C/O curves. Based on physical and chemical properties reflected by RMT logging curves, coal layers can be estimated availably. RIN（ratio near/far inelastic）, RNF（ratio near/far capture） and RICF（far ratio inelastic/capture） auxiliary curves change with the variations of formation density and porosity, and gas layers can be qualitatively distinguished by overlapping the curves.
出处
《测井技术》
CAS
CSCD
北大核心
2011年第6期599-602,共4页
Well Logging Technology
关键词
RMT测井
出水层位
窜槽
煤层
气层
RMT logging, water-out, channels, coal layer, gas layer
