第28卷第2期 2014年4月
现代地质 GEOSCIENCE
Vol. 28No. 2
Apr.2014
新疆博格达山西缘米泉地区构造解析与建模
孙自明，王毅
（中国石化石油勘探开发研究院，北京100083）
摘要：新疆博格达山西缘米泉地区油气地质条件优越，但构造变形复杂，地震资料品质较差，准确落实地下地质构造是油气勘探取得突破的关键。该区地表露头出露良好，地震、非地震（MT)和钻井等资料丰富，为落实地下地质构造提供了良好的资料基础。通过对该区地表地质、地震、非地震、钻井和测井等资料的综合研究与应用分析，结合对前人构造解析与建模理论成果和主要技术方法的总结，形成了针对山前冲断带复杂构造变形区以断层相关褶皱构造解析为核心、多因素约束的综合构造解析与建模技术，建立了米泉地区多层次逆冲推覆构造模型。这项技术应用于构造特别复杂地区低成像品质地震资料的构造解释，可有效降低地震资料解释的多解性。
关键词：构造解析；构造建模；技术方法；多层次逆冲推覆构造模型；米泉；博格达山
中图分类号：TE121.2；P618.130.2
文献标志码：A
文章编号：10008527(2014)02030008
Structural Analysis and Modeling in Miquan Area of the Western Margin
of the Bogda Mountain, Xinjiang
SUN Zi-ming，WANGYi
(Exploration and Production Research Institate, SINOPEC,Bejing100083, China)
Abstract: There are favorable hydrocarbon elements in the Miquan area of the western margin of Bogda Moun-tain, Xinjiang. However, complex tectonic deformation and poor seismic imaging quality make identification of underground structures difficult. The accuracy of such identification is the key to a breakthrough in oil and gas exploration. Well-exposed outcrops, seismic sections, magnetotelluric and drilling data, etc. , provide impor-tant information for defining underground structures. From an integrated analysis based on fault-related fold the-ory and main methods of structural analysis and modeling, it is pointed out that geological outcrops, magnetotel-luric , drilling and logging data, together with other factors need to be comprehensively taken into account during seismic interpretation in order to accurately identify subsurface structures. Therefore, structural analysis and modeling implies a highly comprehensive work in the tectonically-deformed zone of the foreland fold and thrust belt. Beginning with a summary of traditional structural analysis and modeling workflows and theoretical methods for complex structures, a new multi-factors-constrained, integrated analysis and modeling technique is pro-posed, based on fault-related fold analysis. Using this developed technology as a guide, a multi-level detach-ment thrust nappe model is built for the Miquan area of the western margin of Bogda Mountain, Xinjiang. This technique can be applied to guide the seismic interpretation of strongly-deformed, low image quality structures, effectivelyimproving its accuracy.
Key words: structural analysis; structural modeling; technical methods; multi-level detachment thrust nappe; Miquan; Bogda Mountain
收稿日期：2013-06-28；改回日期：2013-09-20：责任编辑：孙义梅。基金项目：中国石油化工股份有限公司科技开发项目（P07015）。
作者简介：孙自明，男，高级工程师，博士，1964年出生，矿产普查与勘探专业，主要从事油气勘探和盆地构造研究。
Email: sunzm. syky@ sinopec, com。