深水中大型气田滚动勘探技术体系与成效——以琼东南盆地中央峡谷A边际气田为例

陈奎; 胡德胜; 宋瑞有; 龚宇; 肖大志; 黄安敏; 朱玉双

doi:10.11781/sysydz202401001

深水中大型气田滚动勘探技术体系与成效——以琼东南盆地中央峡谷A边际气田为例

doi: 10.11781/sysydz202401001

陈奎^{1, 2,},
胡德胜²,
宋瑞有³,
龚宇³,
肖大志³,
黄安敏²,
朱玉双^1, ,

1.
西北大学地质学系/大陆动力学国家重点实验室, 西安 710069
2.
中海石油(中国)有限公司湛江分公司, 广东湛江 524057
3.
中海石油(中国)有限公司海南分公司, 海口 570300

基金项目:

中国海洋石油有限公司科技项目“南海深水盆地油气运聚成藏分析与突破方向” KJGG2022-0103

详细信息

作者简介:
陈奎(1986-), 男, 博士生, 高级工程师, 本刊青年编委, 从事油气勘探研究。E-mail: chenkui3@cnooc.com.cn

通讯作者:
朱玉双(1968-), 女, 教授, 博士生导师, 从事油层物理与开发地质研究。E-mail: yshzhu@nwu.edu.cn

中图分类号: TE122.3
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- 文章访问数: 233
- HTML全文浏览量: 69
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- 被引次数: 0
出版历程
- 收稿日期: 2023-08-14
- 修回日期: 2023-12-12
- 刊出日期: 2024-01-28

Technical system and achievements of rolling exploration in large and medium-sized deep-water gas fields: a case study of marginal gas field A in central canyon of Qiongdongnan Basin

1.
Department of Geology, Northwest University/State Key Laboratory of Continental Dynamics, Xi'an, Shaanxi 710069, China
2.
Zhanjiang Branch of CNOOC Ltd., Zhanjiang, Guangdong 524057, China
3.
Hainan Branch of CNOOC Ltd., Haikou, Hainan 570300, China

摘要

摘要: 为了促进琼东南盆地中央峡谷深水A边际气田开发，引入目标搜索研究、目标评价研究、目标钻探研究等完整气田滚动勘探技术体系。A边际气田目标搜索除利用传统的区带油气潜力目标搜索技术外，提出评价过程目标搜索技术，共搜索了5个油气潜力区块，并优选A4构造进行油气目标评价。从圈闭解释与落实、圈闭烃类检测两方面对A4构造油气成藏主控因素开展研究。A4构造中部预测优势含气区具有强振幅属性、低密度、低速度、低纵波阻抗、低纵横波速度比等有利含气信息特征，总体为Ⅲ类AVO异常，且能够升级HL_0气组控制天然气地质储量，部署滚动探井A4-1井实施钻探，在黄流组钻遇气层超20 m，莺歌海组二段钻遇可疑气层近10 m，获得天然气探明地质储量近30亿立方米，钻探效果好。滚动勘探研究在深水A边际气田的应用，不仅有效地促进了A边际气田后续滚动勘探活动，而且证实了滚动勘探同样适用于深水油气勘探。
- 油气滚动勘探 /
- 勘探成熟区 /
- 深水区 /
- 中央峡谷 /
- 琼东南盆地 /
- 南海北部
Abstract: A complete technical system of gas field rolling exploration such as target search, evaluation and drilling was introduced to promote the development of the deep-water marginal gas field A in the central canyon of the Qiongdongnan Basin. In addition to the traditional target search technology of oil and gas potential in the zone, a target search technology of evaluation process was proposed for the marginal gas field A. A total of five potential oil and gas blocks were searched, and the structure A4 was selected for oil and gas target evaluation. The main controlling factors of hydrocarbon accumulation in the structure A4 were studied from two aspects: trap interpretation and implementation, and trap hydrocarbon detection. The predicted dominant gas-bearing areas in the central part of structure A4 have favorable gas-bearing information characteristics such as strong amplitude attributes, low density, low velocity, low P-wave impedance, and low P-wave and S-wave velocity ratios. They were generally classified as class Ⅲ AVO anomaly, which can upgrade the HL_0 gas group to control natural gas geological reserves. The rolling exploration well A4-1 was drilled, encountering a gas layer of over 20 m in the Huangliu Formation, and a suspicious gas layer of nearly 10 m in the second member of Yinggehai Formation. The proven geological reserves of natural gas were nearly 3 billion cubic meters, and the drilling effect was good. The application of rolling exploration research in the deep-water marginal gas field A not only effectively promotes the subsequent rolling exploration activities of the marginal gas field A, but also confirms that rolling exploration is also applicable to deep-water oil and gas exploration.
- rolling exploration of oil and gas /
- maturing exploratory area /
- deep-water area /
- central canyon /
- Qiongdongnan Basin /
- northern South China Sea
注释:

1) 所有作者声明不存在利益冲突。

1) 利益冲突声明/Conflict of Interests

2) 作者贡献/Authors’Contributions

2) 陈奎、胡德胜、朱玉双参与研究方法和技术手段讨论、设计；陈奎、宋瑞有、龚宇参与研究方法和技术手段的实践应用；陈奎、胡德胜、宋瑞有、龚宇、肖大志、黄安敏、朱玉双参与论文写作和修改。所有作者均阅读并同意最终稿件的提交。

HTML全文

图 1 琼东南盆地中央坳陷带中央峡谷及邻区构造区划与A气田及研究区分布位置

Figure 1. Tectonic division of central canyon and its adjacent area in central depression belt of Qiongdongnan Basin and distribution of gas field A and research area

下载: 全尺寸图片幻灯片

图 2 琼东南盆地深水区中央峡谷水道中段A气田潜力目标分布特征

Figure 2. Distribution characteristics of potential targets of gas field A in middle section of central canyon waterway in deep-water area of Qiongdongnan Basin

下载: 全尺寸图片幻灯片

图 3 琼东南盆地中央峡谷深水区S-8井区振幅定量化调整前后剖面振幅对比

剖面位置见图 1。

Figure 3. Comparison of profile amplitude before and after amplitude quantitative adjustment of well area S-8 in deep-water central canyon in Qiongdongnan Basin

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图 4 琼东南盆地中央峡谷水道中段A4构造引层追踪和层位地震地质解释剖面特征

剖面位置见图 1。

Figure 4. Profile characteristics of reference layer tracing and seismic geological interpretation of structure A4 in middle section of central canyon waterway in Qiongdongnan Basin

下载: 全尺寸图片幻灯片

图 5 琼东南盆地中央峡谷水道中段A4构造中部和南部预测优势含气区AVO异常模式

Figure 5. AVO anomaly models of predicted dominant gas-bearing zones in middle and southern parts of structure A4 in middle section of central canyon waterway in Qingdongnan Basin

下载: 全尺寸图片幻灯片

图 6 琼东南盆地中央峡谷深水区A4构造后续滚动勘探研究区有利油气勘探目标预测之典型地震剖面

剖面位置见图 1。

Figure 6. Typical seismic profile for prediction of favorable oil and gas exploration targets in subsequent rolling oil and gas exploration research area of structure A4 in deep-water central canyon in Qiongdongnan Basin

下载: 全尺寸图片幻灯片

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