循环钻井液气测录井资料在油气层解释中的应用

Application of Circulating Drilling Fluid Gas Logging Data in Oil Gas Formation Interpretation

循环钻井液气测井,是判别储层流体性质和侵入程度的重要手段。它不仅可以识别随钻气测录井的真假异常,且能够确定油气显示的深度。该文将循环钻井液实测资料划分了三种不同类别。并探讨了钻井液在静止过程中出现储层油气上窜的现象。摸索出油气上窜深度的计算方法,较传统的计算方法有了新的改进。使循环钻井液气测资料解释在松辽盆地大安地区获得了较好的地质应用效果。

Circulating drilling fluid gas logging is the significant discriminant mean for reservoir fluid property and invasion degree. It not only can identify true and false abnormal of the gas logging while drilling ,also can determine the depth of oil gas show. The paper divides the data into three types and discusses the phenomenon of drilling fluid at the static state while reservoir oil gas going up . The paper gives calculating way for the depth of oil gas going up.