塔里木盆地顺北地区海相超深碳酸盐岩油气勘探物探技术需求与创新应用  被引量:16

Technical demand and innovative application of geophysical exploration technology for marine ultra-deep carbonate rocks in Shunbei area,Tarim Basin

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作  者:漆立新[1] QI Lixin(Northwest Branch of Sinopec,Urumqi 830011,China)

机构地区:[1]中国石化西北油田分公司,新疆乌鲁木齐830011

出  处:《石油物探》2023年第3期381-394,共14页Geophysical Prospecting For Petroleum

基  金:国家自然科学基金项目“海相深层油气富集机理与关键工程技术基础研究”(U19B6003)资助。

摘  要:塔里木盆地顺北地区海相超深层碳酸盐岩是塔里木盆地油气勘探的重点领域之一。经过地震采集、处理成像、量化识别和地质工程一体化解释的系统攻关,逐渐形成了高密度、高精度、面向缝洞体的三维地震采集技术;宽频带、高保真全波场地震处理技术;叠前宽方位分析、各向异性检测、可视化等多维度解释技术。但作为典型的非层状油气藏,塔里木盆地顺北地区海相超深碳酸盐岩油气地震勘探理论与地震勘探实践仍面临全方位的挑战,未来应进一步加强物探技术攻关,包括进一步完善地震散射波传播与成像理论;试验以“共中心点离散化、近偏高覆盖、多观测系统”为主的地震采集技术;重新认识噪声,实现多态式地震波处理和全波场地震成像;积极探索智能化解释技术,综合岩石物理分析与正演模拟、多态式的叠前反演与地震属性分析,精细描述缝洞体及其内幕。这些技术对支撑顺北地区持续重大突破和持续发展,以及对国内外超深层碳酸盐岩勘探和非层状油气藏勘探具有借鉴意义。Marine ultra-deep carbonate rocks are crucial for oil and gas exploration in the Tarim Basin.To address the key problems of seismic acquisition,processing imaging,quantitative identification,and geological engineering-integrated interpretation systems,the following technologies have been gradually established:high-density,high-precision,three-dimensional seismic acquisition technology oriented for fractures and cave bodies;wide-band,high-fidelity,full-wave-field seismic processing;and multi-dimensional interpretation using pre-stack wide-azimuth analysis,anisotropy detection,and visualization.However,in a typical non-stratified reservoir,seismic exploration theory and practice still encounter challenges.Therefore,future research on geophysical exploration technology should be focused on the following themes:improving the theory of seismic scattering wave propagation and imaging;seismic acquisition technology testing based on“common center point discretization,near offset high coverage,and multiple observation systems”;re-recognition of noise;multi-regime seismic wave processing and full-wave-field seismic imaging;intelligent interpretation technology;and integration of rock physical analysis and forward modeling,multi-state pre-stack inversion,and seismic attribute analysis.Moreover,the fracture body and its interior should be accurately described.These technologies are important for supporting the sustained breakthrough and sustainable development of seismic exploration in Shunbei.In addition,they are crucial for the non-layered oil and gas reservoir and ultra-deep carbonate rock exploration at home and abroad.

关 键 词:超深碳酸盐岩油气藏 断控缝洞体 非层状油气藏勘探 地震波场 散射波地震采集 多态式地震处理成像 地震散射波识别和量化表征 

分 类 号:P631[天文地球—地质矿产勘探]

 

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