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[1]刘仕友 李洋森 沈利霞 闫安菊.莺歌海盆地乐东区高温高压中深层暗点型气藏预测技术[J].中国海上油气,2019,31(04):67-74.[doi:10.11935/j.issn.1673-1506.2019.04.008]
 LIU Shiyou LI Yangsen SHEN Lixia YAN Anju.Prediction technology for the HTHP middle-deep layers dark-spot gas reservoirs in Ledong area, Yinggehai basin[J].China Offshore Oil and Gas,2019,31(04):67-74.[doi:10.11935/j.issn.1673-1506.2019.04.008]
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莺歌海盆地乐东区高温高压中深层暗点型气藏预测技术()
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《中国海上油气》[ISSN:1673-1506/CN:11-5339/TE]

卷:
第31卷
期数:
2019年04期
页码:
67-74
栏目:
油气勘探
出版日期:
2019-07-25

文章信息/Info

Title:
Prediction technology for the HTHP middle-deep layers dark-spot gas reservoirs in Ledong area, Yinggehai basin
文章编号:
1673-1506(2019)04-0067-08
作者:
刘仕友 李洋森 沈利霞 闫安菊
(中海石油(中国)有限公司湛江分公司 广东湛江 524000)
Author(s):
LIU Shiyou LI Yangsen SHEN Lixia YAN Anju
(CNOOC China Limited, Zhanjiang Branch, Zhanjiang, Guangdong 524000, China)
关键词:
莺歌海盆地 乐东区 高温高压 暗点型气藏 AVO分析 流体指示因子
Keywords:
Yinggehai basin Ledong area high temperature and high pressure(HTHP) dark-spot gas reservoir AVO analysis fluid indicator
分类号:
TE132.1+4
DOI:
10.11935/j.issn.1673-1506.2019.04.008
文献标志码:
A
摘要:
乐东区中深层是莺歌海盆地高温高压领域目前获取重大勘探突破的区域,但该区中深层已钻遇的亮点型储层物性差,普遍表现为低孔—特低渗特征。区域岩石物理特征分析表明,乐东区具备形成暗点型气藏的条件,砂岩AVO-孔隙度量版显示含气优质储层表现为II类AVO异常; 据此借助近远道叠加道集关系建立了II类AVO暗点型气藏预测技术,利用Fstack属性和坐标旋转后的P×G属性可以有效识别乐东区中深层有利潜在目标。通过钻井证实了本文预测技术的有效性和可靠性,进一步拓展了II类AVO流体指示因子在烃类含气性检测中的应用,为乐东区高温高压领域中深层的下一步勘探指明了方向。
Abstract:
The middle-deep layers of the Ledong area is observing a major exploration breakthrough in the high temperature and high pressure(HTHP)reservoirs of the Yinggehai basin. However, the bright-spot reservoirs that have been encountered in the middle-deep layers of this area are poor in physical properties, generally characterized by low-porosity and ultra-low permeability. The analysis of regional petrophysical characteristics shows that Ledong area owns the conditions for the formation of dark-spot gas reservoirs. The sandstone AVO-porosity metrics show that the high quality gas-bearing reservoirs exhibit the Class II AVO anomaly. With the assistance of the near-distance tracks superposition gather relationship, the Class II AVO dark-spot gas reservoirs prediction technology has been established, and by utilizing the Fstack attributes and the P×G attributes after the coordinate rotation, it can effectively identify the favorable potential targets in the middle-deep layers of the Ledong area. The effectiveness and reliability of the prediction technology in this paper was validated by drilling, and the application of Class II AVO fluid indicator in gas-bearing detection was further expanded, which points out the direction for the further exploration of HTHP middle-deep reservoirs in Ledong area.

参考文献/References:

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备注/Memo

备注/Memo:
*“十三五”国家科技重大专项“莺琼盆地高温高压天然气富集规律与勘探开发关键技术(编号:2016ZX05024-005)”部分研究成果。 第一作者简介: 刘仕友,男,高级工程师,主要从事地球物理方法研究工作。地址:广东省湛江市坡头区南油二区北部湾楼202室(邮编:524000)。E-mail:liushy4@cnooc.com.cn。
更新日期/Last Update: 1900-01-01