摘要
与一般意义上的定量荧光录井技术相比,三维定量荧光录井技术具有更高的灵敏度、更丰富的图文信息,能够相对全方位地反映油气显示的众多信息。针对该技术在渤海湾盆地的应用尚未建立有针对性的、有效的解释评价方法的现状,以该盆地A油田为例,利用不同性质原油样品分析的最佳激发波长、最佳发射波长和井壁取心岩心样品分析的油性指数建立原油性质识别标准;以井壁取心岩心样品分析的对比级别与油性指数为交会分析参数,建立三维定量荧光录井储集层流体性质初步解释评价图板,将该图板的解释评价结果与其他录井资料相结合,形成了储集层流体性质解释评价方法。该油田34口井43个油气显示层的应用表明,只有7层与试油结论不符合,解释符合率达到83.72%,能够较好地满足现场及时准确识别原油性质与解释评价储集层流体性质的要求。
Compared with the ordinary quantitative fluorescence logging technology,three-dimensional quantitative fluorescence logging technology has higher sensitivity,more abundant image-text information,and is able to reflect much omni-dimensional information about oil and gas shows.In accordance with the status quo that the technology application in Bohai Bay Basin has not yet established the targeted and effective interpretation and evaluation method,taking the basin′s A oilfield as an example,the oil property identification standards were established by using optimum excitation wavelength and optimum emission wavelength from different properties of crude oil samples and oiliness indexes from the core sample analysis of sidewall coring,by taking the contrast level and oiliness index from the core sample analysis of sidewall coring as intersection analysis parameters,the authors established the preliminary interpretation and evaluation chart of reservoir fluid property with three-dimensional quantitative fluorescence logging by combining the chart interpretation and evaluation results with other mud logging data to form the interpretation and evaluation method for reservoir fluid property.The application of 43oil-gas show layers from34 wells in the oilfield indicated that only 7layers′test results were not up to formation testing results,the interpretation coincidence rate reached 83.72%,which can meet wellsite demands of timely and accurately identifying the oil property and interpreting and evaluating reservoir fluid properties.
出处
《录井工程》
2016年第2期15-19,98-99,共5页
Mud Logging Engineering
关键词
三维定量荧光
原油性质识别
储集层
流体性质
解释评价
渤海湾盆地
three-dimensional
quantitative fluorescence
oil property
reservoir
fluid property
interpretation and evaluation
