【摘要】 大庆喇萨杏油田已进入高含水后期开采阶段,挖潜对象逐渐向薄差层、表外层转移,需要寻找各种提高油层水淹状况解释精度的新途径作为对测井解释的补充。该文建立了一种应用岩石热解分析技术评价水淹层的新方法。该方法通过井壁取心热解分析求取目前剩余油饱和度、驱油效率等参数,精细评价储集层纵向上水淹状况,通过计算储集层产水率综合判断油层水淹程度,提高老油田调整挖潜效率,为进一步发展稳油控水技术、深化精细地质研究提供了可靠依据。更多还原

【Abstract】 Daqing Lasaxing Oilfield has entered into the later producing phase of high water-bearing oilfield. The object of excavating reservoir potentialities has gradually shifted to thin-bad layers and surface-outer layers, which needs to seek various new ways to improve the interpretation accuracy for oil layers′watered-out state and use them as a supplyment to well logging interpretation.The paper set up a new method, which applied rock pyrolysis assay technology to evaluate watered-out layers.Through sidewall coring pyrolysis assay,it extracted the parameter of current remaining oil saturation and displacement efficiency etc.,and finely evaluated vertical watered-out state of reservoirs.And by means of computing reservoir′s water yield, the watered-out extent of oil layers could be comprehensively diagnosed, it increased the efficiency of revising excavation potentialities for the old oilfield and provided the basis for further developing the technique of stabilizing oil production, controlling aquifer yield and deepening fine geologic study.更多还原