吉林大学学报(地球科学版) ›› 2016, Vol. 46 ›› Issue (1): 270-278.doi: 10.13278/j.cnki.jjuese.201601304

• 地球探测与信息技术 • 上一篇    下一篇

利用地球物理信息描述太古宇潜山有效储集体

张新培1,2, 于雪峰3   

  1. 1. 中国石油辽河油田公司, 辽宁盘锦 124010;
    2. 中国石油大学(北京)地球资源与信息学院, 北京 102249;
    3. 长江大学地球科学学院, 武汉 430100
  • 收稿日期:2015-04-07 出版日期:2016-01-26 发布日期:2016-01-26
  • 作者简介:张新培(1974),男,高级工程师,博士,主要从事油气田开发地质方面研究,Tel:0427-7291867,E-mail:283620240@qq.com
  • 基金资助:

    中国石油重大科技专项(2012E-30)

Using Geophysical Information to Describe Effective Reservoirs of Archean Buried Hill

Zhang Xinpei1,2, Yu Xuefeng3   

  1. 1. Exploration and Development Research Institute, Liaohe Oilfield Branch Company of PetroChina, Panjin 124010, Liaoning, China;
    2. Faculty of Geo-Resource and Information, China University of Petroleum, Beijing 102249, China;
    3. School of Earth Sciences, Yangtze University, Wuhan 430100, China
  • Received:2015-04-07 Online:2016-01-26 Published:2016-01-26
  • Supported by:

    Supported by Major Scientific and Technological Project of PetroChina(2012E-30)

摘要:

基于新采集处理的高精度叠前深度偏移资料,综合地震、地质、油藏信息细化描述潜山内幕构造,有效提高潜山界面和内幕断层解析的精度和可靠性。东胜堡潜山形态表现为北西南东向展布的背斜特征,发育北东向、北西向、近东西向三组断层,其中北东向断层为主干断层,断层间切割关系比较合理。依据变质岩潜山多种类型岩性的测井响应差异和微观储集空间特征,综合3700系列测井资料定性识别6大类岩性,建立优势岩性和有利储层测井识别综合图版,进一步完善太古宇变质岩孔隙-裂缝型储层测井评价技术。通过有机结合井眼的"硬数据"与地震的"软数据",从骨架岩石特征、储层流体等方面分析影响内幕反射特征的关键因素,针对性提取38种井旁地震属性,解析地震反射特征,寻找岩性-裂缝-地震反射-产能之间的匹配关系,优选能量属性,实现内幕有利储集体预测。结果表明,有利储集体发育具有一定的分段性,在潜山顶面以下50~300 m范围内最为发育,局部表现出不规则透镜体状,是东胜堡潜山油藏开发的有利潜力区。

关键词: 变质岩, 潜山内幕, 波阻抗, 层位标定, 地震属性, 东胜堡潜山

Abstract:

Based on the high precise pre-stack depth migration data of new acquisition and processing,we described the structures of inner buried hill combining with the information of seismic,geology and oil reservoir,which effectively improved the accuracy and reliability of analyzing inside fault and boundary of buried hill. The pattern of Dongshengpu buried hill is an anticline which is NW-SE trend; and the NE-NW and nearly EW-trending faults develop within the buried hill. The NE-trending fault is the major fault. According to the difference of log responses and the characteristics of microscopic reservoir space between multi-types lithology of metamorphic rocks of buried hill,six kinds of lithology are qualitatively identified combining with the data of 3700 logging system. We build a comprehensive chart to distinguish advantageous lithology and favorable-reservoir, by which the logging evaluation technology for porosity-fractured reservoirs in Archaeozoic metamorphic is further improved. Combining with the "hard data" of wells and the "soft data" of seismic, we analyze the key factors which influence the feature of inner reflection through the feature of rock matrix and fluid in reservoir and so on. 38 kinds of near well seismic attributes extracted are purposefully used to analyze seismic reflection characteristics for searching the matching relationship between lithology, fracture, seismic reflection, and production capacity. The prediction of inner favorable-reservoirs is achieved through selecting energy attribute,and the result indicates that the favorable-reservoirs are focused in some segments,the most favorable-reservoirs are in the range of 50-300 m under the top surface of the buried hill,and the reservoirs take the form of anomalous lentoid which are the favorable potential area in Dongshengpu buried hill oil pool.

Key words: metamorphic rock, inner buried hill, wave impedance, layer label, seismic properties, Dongshengpu buried hill

中图分类号: 

  • P631.8

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