|本期目录/Table of Contents|

[1]李 黎 沈水荣 吴意明 张永江 王要森 董 政 刘 振 刘 南.全波形反演与断控层析反演联合速度建模——以南海东部A油田为例[J].中国海上油气,2020,32(05):107-113.[doi:10.11935/j.issn.1673-1506.2020.05.013]
 LI Li SHEN Shuirong WU Yiming ZHANG Yongjiang WANG YaosenDONG Zheng LIU Zhen LIU Nan.Velocity modeling combining full waveform inversion with fault controlled tomographic inversion: A case study of A oilfield in the eastern South China Sea[J].China Offshore Oil and Gas,2020,32(05):107-113.[doi:10.11935/j.issn.1673-1506.2020.05.013]
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全波形反演与断控层析反演联合速度建模——以南海东部A油田为例()

《中国海上油气》[ISSN:1673-1506/CN:11-5339/TE]

卷:
第32卷
期数:
2020年05期
页码:
107-113
栏目:
油气田开发(南海东部海域开发成果专辑)
出版日期:
2020-09-25

文章信息/Info

Title:
Velocity modeling combining full waveform inversion with fault controlled tomographic inversion: A case study of A oilfield in the eastern South China Sea
文章编号:
1673-1506(2020)05-0107-07
作者:
李 黎 沈水荣 吴意明 张永江 王要森 董 政 刘 振 刘 南
(中海石油(中国)有限公司深圳分公司 广东深圳 518054)
Author(s):
LI Li SHEN Shuirong WU Yiming ZHANG Yongjiang WANG YaosenDONG Zheng LIU Zhen LIU Nan
(CNOOC China Limited, Shenzhen Branch, Shenzhen, Guangdong 518054, China)
关键词:
全波形反演 断控层析反演 断裂阴影带 正演模拟
Keywords:
full waveform inversion fault controlled tomographic inversion fault shadow zone forward modeling
分类号:
TE347
DOI:
10.11935/j.issn.1673-1506.2020.05.013
文献标志码:
A
摘要:
南海东部大部分断控油藏存在断层阴影带构造成像畸变问题。以A油田速度建模为例,利用该油田的构造和井信息建立了地质模型,通过模型正演研究认为,折射波加反射波的全波形反演对本区中浅层(<1 900 m)断裂阴影带成像较为适用,但对中深层适用性差; 提出了采用全波形反演与断控层析反演技术相结合建立高精度速度模型的方法,在高分辨率全波形速度模型的基础上,开展断控层析反演更新中深层速度模型,从而进一步解决了断层两侧速度突变问题,弥补了传统层析成像技术难以描述断层两侧速度突变的缺陷。实际地震资料应用效果表明,本文建模方法建立的速度模型与地下真实情况匹配较好,有效地改善了断层阴影带下盘构造成像畸变现象,可提高构造研究精度
Abstract:
Most fault controlled reservoirs in the eastern South China Sea have the problem of structural imaging distortion of fault shadow zone. Taking velocity modeling of A oilfield as an example, a geological model is established using the structure and well data of this oilfield. Through forward modeling, it is considered that the full waveform inversion using refraction and reflection waves is suitable for imaging the fault shadow zone in the mid-shallow layer(< 1 900 m), but it is insufficient for the imaging of the mid-deep layer. A high-precision velocity modeling method combining full waveform inversion with fault controlled tomographic inversion is proposed. Based on the high-resolution full waveform velocity model, a fault controlled tomographic inversion is carried out to update the mid-deep velocity model, so as to solve the problem of velocity sudden change of two fault walls and make up for the defect that traditional tomographic inversion is difficult to describe the sudden velocity change of both fault walls. The applications of actual seismic data show that the velocity model established by this method matches well with the real subsurface situation, effectively eliminates the imaging distortion in the foot wall of fault shadow zone and improves the accuracy of structure study

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备注/Memo

备注/Memo:
收稿日期:2020-03-07 改回日期:2020-04-16 第一作者简介: 李黎,女,工程师,毕业于中国石油大学(华东)地球探测与信息技术专业并获硕士学位。地址:广东省深圳市南山区后海滨路3168号中海油大厦 A座(邮编:518054)。E-mail:lili12@cnooc.com.cn。
更新日期/Last Update: 2020-09-20