冀东南堡凹陷特色录井技术配套应用与解释方法研究  

Research on methods of assorted application and interpretation for special mud logging technology in Nanpu sag of Jidong

作　　者：杜鹏 DU Peng(Mud Logging Company of CNPC Greatwall Drilling Company, Panjin, Liaoning 124010, China)

机构地区：[1]中国石油长城钻探工程有限公司录井公司解释评价中心,辽宁省盘锦市124010

出　　处：《录井工程》2020年第2期61-66,71,共7页Mud Logging Engineering

摘　　要：早期冀东南堡凹陷勘探中,应用常规录井技术效果良好,但随着钻井、钻井液工艺的不断提高,对常规录井技术影响不断增大,导致常规录井资料代表性变差,不能有效反映储集层流体特征,同时南堡凹陷还存在低电阻率、低气测异常层,给解释评价工作带来了很大困难。通过地化录井、轻烃录井、三维定量荧光录井等特色录井技术配套应用,弥补了常规录井技术的不足,利用地化及三维定量荧光技术,能够定量检测岩石中的含油信息,准确反映储集层含油性,同时结合轻烃录井技术,可以有效判断储集层含水性。通过对特色录井技术解释方法研究,优选出地化参数S1、Ps及三维定量荧光参数对比级别N、油性指数Oc作为含油敏感参数,进一步综合提出含油指数Do,同时引入轻烃含水指数Dw,建立了南堡凹陷储集层流体录井解释图板。截至2017年底,通过应用该录井解释方法,冀东南堡凹陷储集层解释符合率提高至83.4%,有效解决了南堡凹陷储集层流体特征判别难题。In the early exploration of Nanpu sag in Jidong,the conventional mud logging effect was good.However,with the continuous improvement of drilling and drilling fluid technology,the impact on conventional mud logging technology has increased,leading to poor representation of conventional mud logging data,which cannot effectively reflect the characteristics of reservoir fluid characteristics.Meanwhile,there are problems of low resistivity and low gas logging abnormal layer in Nanpu sag,which brings great difficulties to interpretation and evaluation.With the assorted application of special mud logging technologies such as geochemical logging,light hydrocarbon logging and 3D quantitative fluorescence logging,the shortcomings of conventional logging technology have been made up.Using geochemical and 3D quantitative fluorescence technology,the oil content information in rocks can be quantitatively detected,the oil-bearing of reservoir can be accurately reflected,and combined with light hydrocarbon logging technology,the water content of reservoir can be effectively determined.Based on the research on the interpretation method of special mud logging technology,the geochemical parameters S1,Ps and contrast grade N and oil property Oc of 3D quantitative fluorescence parameters were selected as oil-bearing sensitive parameters,and the oil-bearing index Do was proposed.Meanwhile,the light hydrocarbon water-bearing index Dw was introduced to establish a fluid mud logging interpretation chart for reservoirs in Nanpu sag.As of the end of 2017,by applying the mud logging interpretation method,the interpretation coincidence rate of reservoirs in Nanpu sag in Jidong was increased to 83.4%,which effectively solved the problem of distinguishing reservoir fluid characteristics in Nanpu sag.

关 键 词：地化录井 轻烃录井 三维定量荧光录井 解释方法 流体性质 

分 类 号：TE132.1[石油与天然气工程—油气勘探]