摘要
SY 1井位于大民屯凹陷中央洼陷带,该工区沙四时期受强烈断裂运动影响导致砂体横向变化大,直接影响了勘探成效。传统地质导向中的钻时、气测、岩性、随钻GR在该区块水平井随钻导向中应用效果差,成为制约SY区块发展的瓶颈。应用元素录井技术,通过选取特征微量元素(Ca、Fe、Mg、Ti、S、P、K、Mn)及Si/Al元素比值追踪井轨迹钻遇层位,形成元素层位划分及对比方法,可以准确识别储集层岩性,实现了井轨迹实时跟踪对比及调整,进而提高了优势储集层的钻遇率,表明元素录井技术在指导随钻导向上具有独特的优势及潜力。
SY 1 well is located in the central depression belt of Damintun sag.During Es 4 period of this work area,the lateral variation of the sand body was great due to the badly faulting movement,which directly affected the exploration effects.In the traditional geosteering,the application effect of drilling time,gas logging,lithology and GR while drilling in horizontal well steering while drilling in this block is poor,which has become a bottleneck restricting the development of SY block.By using the element logging technology,through selecting typical trace elements of Ca,Fe,Mg,Ti,S,P,K and Mn and the element ratio of Si/Al to track the drilling horizon of the well trajectory,the method of element horizon division and correlation is formed.It can accurately identify the reservoir lithology,realize the real-time tracking,comparison and adjustment of the well trajectory,and improve the drilling rate of the dominant reservoir,indicating that the element logging technology has unique advantages and potential in guiding steering while drilling.
作者
胡振华
刘有武
许群超
HU Zhenhua;LIU Youwu;XU Qunchao(Exploration Enterprise Department of PetroChina Liaohe Oilfield Company, Panjin, Liaoning 124010, China;GWDC Mud Logging Company, Panjin, Liaoning 124010, China)
出处
《录井工程》
2020年第2期47-54,共8页
Mud Logging Engineering
基金
国家科技重大专项“渤海湾盆地北部油气富集规律与增储领域研究”(编号:2016ZX05006005)。
关键词
元素录井
大民屯凹陷
水平井
随钻导向
地层对比
小层精细划分
element logging
Damintun sag
horizontal well
steering while drilling
stratigraphic correlation
fine micro-layers division
作者简介
胡振华,高级工程师,1980年生,2003年毕业于中国石油大学(华东)勘查技术与工程专业,2011年毕业于东北石油大学地质工程专业,获硕士学位,现在中国石油辽河油田分公司勘探事业部从事石油地质勘探工作,通信地址:124010辽宁省盘锦市兴隆台区石油大街100号,电话:(0427)7298531,E-mail:287292441@qq.com。
