Characteristics of lithology anomalous body in Tertiary Wenchang Formation of Enping Sag

doi:10.7623/syxb200803010

Editorial office of ACTA PETROLEI SINICA ›› 2008, Vol. 29 ›› Issue (3): 368-371.DOI: 10.7623/syxb200803010

• Petroleum Exploration • Previous Articles Next Articles

Characteristics of lithology anomalous body in Tertiary Wenchang Formation of Enping Sag

LÜ Chengfu^1,2, CHEN Guojun^1,2, WANG Tianqi³, LI Yulan^1,2, HE Shibin⁴, LIU Dewen^1,2

1. Key Laboratory for Gas Geochemistry of Institute of Geophysics, Chinese Academy of Sciences, Lanzhou 730000, China;
2. Graduate School, Chinese Academy of Sciences, Beijing 100049, China;
3. Northwest Branch Institute, PetroChina Exploration and Development Research Institute, Lanzhou 730020, China;
4. CNOOC Research Center, Beijing 100027, China

Received:2007-08-04 Revised:2007-10-27 Online:2008-05-25 Published:2010-05-21

恩平凹陷第三系文昌组异常岩性体特征

吕成福^1,2, 陈国俊^1,2, 王天琦³, 李玉兰^1,2, 何仕斌⁴, 刘得文^1,2

1. 中国科学院地质与地球物理研究所气体地球化学重点实验室甘肃兰州 730000;
2. 中国科学院研究生院北京 100049;
3. 中国石油勘探开发研究院西北分院甘肃兰州 730020;
4. 中海石油研究中心北京 100027

作者简介:吕成福,男,1979年10月生,2004年毕业于中国石油大学(华东),现为中国科学院地质与地球物理研究所气体地球化学重点实验室在读博士研究生,主要从事储层沉积学方面的研究.E-mail:bailu2005@163.com
基金资助:
国家量点基础研究发展规划(973)项目(2005CB422105)、甘肃省自然科学基金项目(3YS051-A25-007)和中国科学院知识创新工程项目(KZCX3-SW-147)联合资助.

Abstract

Abstract: The characteristics of distribution,lithology,geology and seismic response of the lithology anomalous body in the Tertiary Wenchang Formation of Enping Sag in Pearl River Mouth Basin were studied.The lithology anomalous body is a turbid sediment body.The phenomena of gas measurement abnormity,high-pressure abnormity,smallness of ground temperature gradient,AVO attribute abnormity and stratum descend of the anomalous body were analyzed by using the seismic and log technologies.The Tertiary Wenchang Formation of Enping Sag in Pear River Mouth Basin has rich organic matters and is the main oil-gas source.The anomalous body is favorable exploration area.

Key words: Pearl River Mouth Basin, Enping Sag, lithologic oil-gas reservoir, lithology anomalous body, seismic features, oil-bearing property

摘要： 对珠江口盆地恩平凹陷下第三系文昌组大套暗色泥岩中的"异常岩性体"的分布、岩性、地质背景和地震响应等特征进行了研究,结果表明该异常体为沉积浊积体。对其形成模式和保存条件进行了探讨,运用地震和测井技术研究了其气测异常、高压异常、地温梯度小、AVO属性异常和层位下拉等现象,分析了该沉积浊积体的含油气性。珠江口盆地恩平凹陷文昌组泥岩是本区的主要油气源岩,有机质丰富,充足的油源为浊积体成藏奠定了物质基础。该浊积砂体是有利的勘探目标。

关键词: 珠江口盆地, 恩平凹陷, 岩性油气藏, 浊积体, 地震特征, 含油气性

CLC Number:

TE112.2

LÜ Chengfu, CHEN Guojun, WANG Tianqi, LI Yulan, HE Shibin, LIU Dewen. Characteristics of lithology anomalous body in Tertiary Wenchang Formation of Enping Sag[J]. Editorial office of ACTA PETROLEI SINICA, 2008, 29(3): 368-371.

吕成福, 陈国俊, 王天琦, 李玉兰, 何仕斌, 刘得文. 恩平凹陷第三系文昌组异常岩性体特征[J]. 石油学报, 2008, 29(3): 368-371.

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Characteristics of lithology anomalous body in Tertiary Wenchang Formation of Enping Sag

恩平凹陷第三系文昌组异常岩性体特征

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