孤东油田小井距注水示踪剂的选择及现场实施

SELECTING AND TESTING TRACERS FOR FLOODING WATER FLOW IN CLOSE WELL SPACING DISTRICT IN GUDONG OIL FIELD

本文介绍了4种可同时使用的注水示踪剂的室内选择及其在孤东油田小井距试验区的应用情况。试验表明,硫氰酸铵、碘化钾、亚硝酸钠和钼酸铵是可同时使用的注水示踪剂。利用中心井的示踪剂采出曲线粗略地计算了示踪剂在地层中的损耗,并引用 Maghsood 等人的理论初步分析了中心井与4口注水井之间油层渗透率的纵向分布情况。

In this paper the results of laboratory screening test,of the first practical application at a close well spacing district in Gudong,Shengli Oil Field,and of analysis of four flo- oding water tracers injected simultaneously.These are ammonium thiocyanate,potassium iodide,sodium nitrite,and ammonium molybdenate.The losses of these tracers in reser- viors are roughly estimated from the curves of each tracer production in the central well. The vertical distribution of permeabilities of the reserviors between the central and the four peripheral injecting wells is analysed preliminaryly in the light of the theoretical con- cepts published.