Improving the greater K2 area subsalt imaging with advanced seismic acquisition, model building, and imaging technologies — A Gulf of Mexico case study

Author:

Aibaidula Abay1,Walraven David1,Rodriguez Arnold1

Affiliation:

1. Anadarko Petroleum.

Abstract

Subsalt imaging has proven challenging in part because of the complex geometries of the salt canopies, which can yield highly variable illumination on subsalt reflectors. The resulting complexity of the seismic wavefields has also challenged traditional velocity-model-building tools and migration algorithms. A case study for the K2 field illustrates how improved seismic data in the form of long-offset, full-azimuth acquisition and more advanced model building and imaging tools have substantially enhanced the imaging quality of this major subsalt field. The higher fold and more complete azimuthal coverage afforded by the full-azimuth coil data improved the effectiveness of the combined tomographic and full-waveform inversion approach for velocity-model building. Utilization of TTI RTM migration algorithms provided further benefits not only for better delineation of the salt geometry during model building but also in delivering superior final image volumes relative to that which could be provided by less robust algorithms, such as Kirchhoff, beam, and one-way wave equation.

Publisher

Society of Exploration Geophysicists

Subject

Geology,Geophysics

Reference12 articles.

Cited by 5 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Appendix D : Bibliography;Illustrated Seismic Processing Volume 2: Preimaging;2020-01-12

2. Combination of improved acquisition system, processing, velocity model and migration for seismic imaging in areas of intense salt tectonics;Geofizicheskiy Zhurnal;2017-03-30

3. Technical Program in full - Part II (RC 1 - VSP P1);SEG Technical Program Expanded Abstracts 2016;2016-09

4. Coil demultiple improvement through reduction of input location error;SEG Technical Program Expanded Abstracts 2016;2016-09-01

5. Seismic Processing: Data Reconstruction and Multiples Complete Session;SEG Technical Program Expanded Abstracts 2016;2016-09-01

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3