玛北地区百口泉组古水流方向测井识别方法研究  

Study on the Log Identification Method of the Paleocurrent Direction of Baikouquan Formation in Mabei Area

作　　者：付建伟[1] 李洪楠 丁娱娇[3] 王贵文[1] 王小刚 FU Jianwei;LI Hongnan;DING Yujiao;WANG Guiwen;WANG Xiaogang(State Key Laboratory of Petroleum Resources and Prosprecting,Beijing 102249,China;Exploration&Development Research Institute,Liaohe Oilfield Company,PetroChina,Panjin,Liaoning 124010,China;Research Institute of Exploration and Development,Dagang Oilfield Company,PetroChina,Tianjin 300280,China;Market and Production Department,China National Logging Corporation,Xi’an,Shaanxi 710077,China)

机构地区：[1]油气资源与探测国家重点实验室,北京102249 [2]中国石油辽河油田分公司勘探开发研究院,辽宁盘锦124010 [3]中国石油大港油田分公司勘探开发研究院,天津300280 [4]中国石油集团测井有限公司市场与生产处,陕西西安710077

出　　处：《测井技术》2021年第6期598-601,608,共5页Well Logging Technology

基　　金：中国石油天然气集团有限公司创新基金“致密砂砾岩岩性岩相测井识别方法研究”(2013D-5006-030);国家自然科学基金“致密砂岩储层成岩相测井识别方法研究”(41472115)。

摘　　要：玛北地区百口泉组地层为一套扇三角洲沉积体系,储层岩性主要为砂砾岩、含砾中粗砂岩,储层非均质性很强,层理不发育,很难通过拾取斜层理的产状识别古水流方向。通过研究成像测井响应特征,建立了利用微电阻率扫描成像测井,拾取多期次水道之间的冲刷面产状组合识别古水流方向的方法。在缺乏微电阻率扫描成像测井资料的地区,通过拾取地层倾角蓝模式同样可以获取古水流方向,并与成像测井方法具有很好的一致性。利用上述方法得到的研究区古水流方向主要为北东—南西方向,为研究区沉积模式识别提供了有力证据。The strata of Baikouquan formation in Mabei area is a set of fan-delta sedimentary system,and the major reservoir lithology is sandy conglomerate or medium sandstone with conglomerate,which has clear heterogeneity and absence of beddings.All of these have brought great difficulties to the identification of the ancient flow direction through picking up the occurrence of oblique beddings.Characteristics of imaging logs are studied to get the occurrence of the wash surface,by which a method to get the direction of the ancient flow can be established.Another method is established to get the direction of the ancient flow on the condition of no imaging logs by using formation dip logs blue pattern vector diagram.Both methods have good agreement with image logging responses.The result of the analysis shows that the direction of the ancient flow is mainly from the northeast to the southwest which provides evidence for the study of sedimentary mode in the studied area.

关 键 词：测井解释 古水流方向 成像测井 沉积模式识别 冲刷面 百口泉组 

分 类 号：P631.84[天文地球—地质矿产勘探]