孤东油田北部地区低阻油层研究与挖潜

孤东油田北部地区馆下段和东营组低阻油层的测井响应特征主要表现为电阻率低、感应电导率高，利用传统方法进行测井解释时，低阻油层往往被解释为水层或含油水层而被漏掉。通过对低阻油层的成因分析，利用钻井、测井、取心、试油试采及生产动态等数据，在地质条件约束下，动静态相结合建立了测井评价模型，确立了低阻油层的电性界限，有效地提高了对低阻油层的识别能力，在老井挖潜中取得了较好效果。

Research and potential tapping of low resistivity pay zones in northern area of Gudong Oilfield

The main response characteristics on well log of the low-resistivity pay zones in lower Guantao and Dongying Formation in the northern area of Gudong Oilfield are:low electric resistivity and high electric conductivity.When the traditional method is applied for log interpretation,the low-resistivity pay zones was usually ignored since they are explained as water bearing formation or water layers bearing oil.Log evaluation model is set up constrained by geological conditions based on the data of drilling,logging,coring,testing for oil and production performance.Electrical property border of the low-resistivity pay zones is determined.The recognition ability of the low-resistivity pay zones is improved.Good effort has been obtained in the potential tapping in old wells.