[1]霍俊洲,苏 奎,许文壮,等.鄂尔多斯盆地靖边西南马五5储层特征及主控因素分析[J].复杂油气藏,2018,(02):6.[doi:10.16181/j.cnki.fzyqc.2018.02.002]
　HUO Junzhou,SU Kui,XU Wenzhuang,et al.Characteristics and main control factors of M55 submember of Majiagou Formation in southwest of Jingbian Gasfield, Ordos Basin[J].Complex Hydrocarbon Reservoirs,2018,(02):6.[doi:10.16181/j.cnki.fzyqc.2018.02.002]
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鄂尔多斯盆地靖边西南马五5储层特征及主控因素分析()
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《复杂油气藏》[ISSN:1674-4667/CN:31-2019/TQ]

卷:
期数:
2018年02期
页码:
6
栏目:
油气勘探
出版日期:
2018-06-25

文章信息/Info

Title:
Characteristics and main control factors of M55 submember of Majiagou Formation in southwest of Jingbian Gasfield, Ordos Basin
作者:
霍俊洲1; 苏 奎2; 许文壮1; 王建国3; 田 翔3; 夏勇辉4
1.中国石油长庆油田第六采气厂,陕西 榆林 718600; 2.中国地质科学院矿产资源研究所; 国土资源部盐湖资源与环境重点实验室,北京 100037; 3.中国石油大学(北京),北京 102249; 4.中国石油长庆油田气田开发处,陕西 西安 710000
Author(s):
HUO Junzhou1; SU Kui2; XU Wenzhuang1; WANG Jianguo3; TIAN Xiang3; XIA Yonghui4
1.The Sixth Gas Production Plant of PCOC,Yulin 718600,China; 2.MLR Key Laboratory of Saline Lake Resources and Environments, Institute of Mineral Resources, CAGS, Beijing 100037, China; 3.China University of Petroleum(Beijing),Beijing 102249,China; 4.The Company Chinese Changqing Oilfield Branch,Xi’an 710000,China
关键词:
颗粒滩 沟槽 储层特征 主控因素 马家沟组 靖边西南 鄂尔多斯盆地
Keywords:
grainstone shoal;  groove;  reservoir characteristics;  controlling factor;  Majiagou Formation;  southwest of Jingbian Gasfield;  Ordos Basin
分类号:
TE122
DOI:
10.16181/j.cnki.fzyqc.2018.02.002
文献标志码:
A
摘要:
奥陶系马家沟组马五5亚段作为鄂尔多斯盆地油气勘探的新层段已经取得了突破,显示出巨大的勘探潜力,马五5储层特征及主控因素的研究有助于进一步扩大鄂尔多斯盆地马五5的勘探成果。通过岩心观察、薄片鉴定、物性分析等手段,对靖边气田西南部奥陶系马五5的白云岩储层特征进行研究,并对影响储层发育的主控因素进行探讨。研究表明:储集层岩性主要为粗粉-细晶白云岩及泥晶白云岩,属于白云岩型储层; 储集空间以晶间孔和粒间溶孔为主,具有低孔、低渗特征; 优质储层的发育明显受沉积相、成岩作用和岩溶古地貌的控制; 颗粒滩为马五5储层发育的有利微相带; 溶解-中等充填粒(晶)间孔白云岩相为有利成岩相带; 沟槽对储层的岩溶改造作用改善了储集空间并提供了天然气运移的通道。最终优选出三个Ⅰ类有利区。研究成果对于该区天然气勘探及储层预测具有重要指导意义。
Abstract:
In recent years, taken M55 submember of Ordovician Majiagou Formation as new layers for oil-gas exploration of Ordos Basin, the breakthrough has been obtained, indicating huge exploration potential. So the studies on reservoir characteristics and controlling factors are helpful to further enlarge the exploration achievements of M55. According to the observation of core samples and identification of thin section and physical analysis, it was carried out studies on reservoir characteristics of dolostone and main control factor affecting on reservoir development for M55 submember of Ordovician Majiagou Formation in southwest of Jingbian Gasfield. Research results indicated that reservoir lithology belongs to dolostone type reservoir, which mainly consists of siltcrystal-micrite dolostone and micrite dolostone. The reservoir spaces, which are intercrystalline pores and intercrystalline dissolved pores in dominant, have characteristics of low porosity and low permeability. The development of high quality reservoirs is obviously controlled by sedimentation, diagenesis, and palaeogeomorphology of karsts. The grainstone shoals are favorable sedimentary microfacies and the dolostone tidal flats are favorable diagenesis facies. The reservoir space is improved by the karst of reservoir reformed by groove, providing a natural migration path. Finally, three favorable exploratory areas of classⅠwere optimized. The research results have an important guiding significance to natural gas exploration and reservoir prediction in the study area.

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备注/Memo

备注/Memo:
收稿日期:2017-06-05; 改回日期:2018-01-20。
第一作者简介:霍俊洲(1984—),工程师,研究方向为油气田开发地质。E-mail:hjzhou_cq@petrochina.com.cn。
更新日期/Last Update: 2018-06-25