Article(id=1309584797903716470, tenantId=1146029695717560320, journalId=1308397311409356903, issueId=1309584674813472796, articleNumber=null, orderNo=null, doi=10.6038/pg2026JJ0069, pmid=null, cstr=32085.14.pg2026JJ0069, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1746460800000, receivedDateStr=2025-05-06, revisedDate=1764345600000, revisedDateStr=2025-11-29, acceptedDate=null, acceptedDateStr=null, onlineDate=1790158946729, onlineDateStr=2026-09-23, pubDate=1771516800000, pubDateStr=2026-02-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1790158946729, onlineIssueDateStr=2026-09-23, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1790158946729, creator=13701087609, updateTime=1790158946729, updator=13701087609, issue=Issue{id=1309584674813472796, tenantId=1146029695717560320, journalId=1308397311409356903, year='2026', volume='41', issue='1', pageStart='1', pageEnd='500', issueExtLink='null', onlineDate='null', pubDate='1771516800000', pubDateStr='2026-02-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=1, specialIssue=null, createTime=1790158917382, creator='13701087609', updateTime=1790210867428, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1309802569166316485, tenantId=1146029695717560320, journalId=1308397311409356903, issueId=1309584674813472796, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1309802569166316486, tenantId=1146029695717560320, journalId=1308397311409356903, issueId=1309584674813472796, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=325, endPage=340, ext={EN=ArticleExt(id=1309584799732433015, articleId=1309584797903716470, tenantId=1146029695717560320, journalId=1308397311409356903, language=EN, title=Optimal design of high precision observation system for secondary acquisition in the eastern sichuan region——a case study in the JN area, columnId=null, journalTitle=Progress in Geophysics, columnName=null, runingTitle=null, highlight=null, articleAbstract=

The JN area is located in the lithogenic syncline of the high and steep fold belt in east Sichuan Basin, The exploration potential of oil and gas resources is great, the first 3D seismic acquisition was carried out in 2007, due to the lack of pertinence of the early 3D acquisition scheme, There are some problems, such as small azimuth, low folds, large rolling line distance and serious acquisition footprints, it is difficult to meet the demand of exploration and development of target layer after repeated reprocessing of acquired data, in recent years, the observation system scheme of several blocks in the adjacent area have been optimized, the imaging effect of the data has been improved significantly, which strongly supports the exploration and evaluation of the target layer. In view of the acquisition difficulties of exploration and development in this work area, combined with the optimization design experience of observation system in neighboring areas, this paper demonstrates the key parameters of the observation system through the observation system design technology based on three-dimensional complex geological model, and puts forward an observation system scheme with small bin, wide azimuth and high fold that meets the exploration and development needs in this area. The feasibility of the observation system is demonstrated by comparing the amplitude and the coherence attribute of different object images, which provides theoretical guidance and basis for the optimization design of the 3D secondary acquisition high-precision seismic observation system in JN area.

, authors=YunFei XIAO1, Hao HUO2, Peng HUANG1, Yun WANG1, Hao LUO1, WeiZhong XUE1, YaRu WANG1, YiWen WANG1, authorsList=YunFei XIAO, Hao HUO, Peng HUANG, Yun WANG, Hao LUO, WeiZhong XUE, YaRu WANG, YiWen WANG, authorCompany=null, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=Copyright ©2026 Progress in Geophysics. All rights reserved., copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1309584805742870691, articleId=1309584797903716470, tenantId=1146029695717560320, journalId=1308397311409356903, language=CN, title=川东地区二次采集高精度观测系统方案优化设计——以JN工区为例, columnId=1309584711584932741, journalTitle=地球物理学进展, columnName=应用地球物理学(油气、金属矿、海洋、环境、工程、仪器等), runingTitle=null, highlight=null, articleAbstract=

JN工区构造上位于四川盆地川东高陡褶皱带石柱复向斜, 油气资源勘探潜力大, 于2007年首次进行三维地震采集, 由于早期三维采集方案针对性不足, 存在方位角小、覆盖次数低、滚动线距大采集脚印严重等问题, 采集资料后期经过多次重处理也难以满足目标层系勘探开发需求, 邻区多个区块近几年通过优化设计观测系统方案, 资料成像效果改善明显, 有力支撑目标层勘探评价.本文针对本工区勘探开发的采集难点, 结合邻区观测系统优化设计经验, 通过基于三维复杂地质模型的观测系统设计技术, 开展观测系统关键参数的论证, 提出了满足本区勘探开发需求的小面元、宽方位及高覆盖的观测系统方案, 通过不同目标体成像结果的振幅和相干体属性对比分析论证了观测系统的可行性, 为JN工区三维二次采集高精度观测系统方案优化设计提供理论指导和依据.

, authors=肖云飞1, 霍浩2, 黄鹏1, 王昀1, 罗浩1, 薛维忠1, 王雅如1, 王一雯1, authorsList=肖云飞, 霍浩, 黄鹏, 王昀, 罗浩, 薛维忠, 王雅如, 王一雯, authorCompany=null, correspAuthors=null, authorNote=

肖云飞, 男, 1984年生, 高级工程师, 现主要从事地震采集方法技术研究工作.E-mail:

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肖云飞, 男, 1984年生, 高级工程师, 现主要从事地震采集方法技术研究工作.E-mail:

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url=null, language=null, rfNumber=null, rfOrder=28, authorNames=null, journalName=null, refType=null, unstructuredReference=刘晨. 2013. 基于地质目标的观测系统优化设计方法研究[硕士论文]. 青岛: 中国海洋大学., articleTitle=null, refAbstract=null), Reference(id=1309584823421862189, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, doi=null, pmid=null, pmcid=null, year=null, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=null, rfOrder=29, authorNames=null, journalName=null, refType=null, unstructuredReference=唐云, 邓飞, 黄地龙. 2011. 基于Qt和OpenGL的三维地质建模. 计算机科学, 38(2): 281-283., articleTitle=null, refAbstract=null), Reference(id=1309584823501553966, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, doi=null, pmid=null, pmcid=null, year=null, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=null, rfOrder=30, authorNames=null, journalName=null, refType=null, unstructuredReference=吴永国, 尹吴海, 何永清, 等. 2012. 三维观测系统属性均匀性的定量分析. 石油地球物理勘探, 47(3): 361-365., articleTitle=null, refAbstract=null), Reference(id=1309584823598022959, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, doi=null, pmid=null, pmcid=null, year=null, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=null, rfOrder=31, authorNames=null, journalName=null, refType=null, unstructuredReference=向晨, 孙敏傲, 白英哲. 2022. 基于点扩散函数的快速成像技术. //2022年中国石油物探学术年会. 海口, 476-479., articleTitle=null, refAbstract=null), Reference(id=1309584823677714736, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, doi=null, pmid=null, pmcid=null, year=null, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=null, rfOrder=32, authorNames=null, journalName=null, refType=null, unstructuredReference=肖云飞, 殷厚成. 2017. 基于溶洞体照明分析的采集参数论证. 物探与化探, 41(2): 270-277., articleTitle=null, refAbstract=null), Reference(id=1309584823769989425, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, doi=null, pmid=null, pmcid=null, year=null, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=null, rfOrder=33, authorNames=null, journalName=null, refType=null, unstructuredReference=杨晶. 2024. 面向复杂地质目标的地震采集观测系统优化方法及应用. 石油地球物理勘探, 59(3): 404-414., articleTitle=null, refAbstract=null), Reference(id=1309584823853875506, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, doi=null, pmid=null, pmcid=null, year=null, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=null, rfOrder=34, authorNames=null, journalName=null, refType=null, unstructuredReference=殷厚成, 邓飞. 2015. 三维高斯射线束观测系统照明及优化方法研究. 石油物探, 54(4): 376-381, 403., articleTitle=null, refAbstract=null), Reference(id=1309584823920984371, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, doi=null, pmid=null, pmcid=null, year=null, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=null, rfOrder=35, authorNames=null, journalName=null, refType=null, unstructuredReference=张光德. 2013. 惠民凹陷火成岩构造的模型正演与观测系统优化. 地球物理学进展, 28(6): 3098-3105, doi: 10.6038/pg20130635., articleTitle=null, refAbstract=null), Reference(id=1309584823996481844, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, doi=null, pmid=null, pmcid=null, year=null, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=null, rfOrder=36, authorNames=null, journalName=null, refType=null, unstructuredReference=张永华, 李锋, 赵雨晴, 等. 2019. 泌阳凹陷王集地区开发地震采集方案设计研究. 石油地质与工程, 33(5): 36-40., articleTitle=null, refAbstract=null), Reference(id=1309584824084562229, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, doi=null, pmid=null, pmcid=null, year=null, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=null, rfOrder=37, authorNames=null, journalName=null, refType=null, unstructuredReference=中国石油化工股份有限公司, 中国石油化工股份有限公司石油物探技术研究院. 2020. 三维地震观测系统面元均匀性评价方法及系统: 中国, 201811168481.1., articleTitle=null, refAbstract=null), Reference(id=1309584824181031222, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, doi=null, pmid=null, pmcid=null, year=null, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=null, rfOrder=38, authorNames=null, journalName=null, refType=null, unstructuredReference=周洋. 2012. 建南三维浅层储层含气性预测[硕士论文]. 武汉: 长江大学., articleTitle=null, refAbstract=null), Reference(id=1309584824273305911, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, doi=null, pmid=null, pmcid=null, year=null, volume=null, 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figs=[ArticleFig(id=1309584811296129248, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, language=EN, label=Fig.1, caption=The range of source points, figureFileSmall=i3kJsioCiJ0ewCE/b9kVhA==, figureFileBig=I4Ckg28vUC+qCuJOzeiq7w==, tableContent=null), ArticleFig(id=1309584811413569761, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, language=CN, label=图1, caption=激发点范围, figureFileSmall=i3kJsioCiJ0ewCE/b9kVhA==, figureFileBig=I4Ckg28vUC+qCuJOzeiq7w==, tableContent=null), ArticleFig(id=1309584813254869218, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, language=EN, label=Fig.2, caption=The results of single-shot frequency crossover excitation by different lithologies in the early stage of this work area(70~140 Hz), figureFileSmall=kWFnJW6Djs9voIaU3e+tMg==, figureFileBig=nxhb5fNgtyubi/DtzEaFVA==, tableContent=null), ArticleFig(id=1309584813330366691, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, language=CN, label=图2, caption=本工区早期不同岩性激发单炮分频结果(70~140 Hz)

(a) A点位置-灰岩;(b) B点位置-泡砂岩;(c) C点位置-砂岩;(d) D点位置-砂岩.

, figureFileSmall=kWFnJW6Djs9voIaU3e+tMg==, figureFileBig=nxhb5fNgtyubi/DtzEaFVA==, tableContent=null), ArticleFig(id=1309584813418447076, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, language=EN, label=Fig.3, caption=The crossover results of the small combination of the work area and the single point of the adjacent area receiving a single shot(70~140 Hz), figureFileSmall=a0AXnSgiv0NyrIiFXKUPUA==, figureFileBig=Ti8Vqh/ohxRv1Zn9lBqOug==, tableContent=null), ArticleFig(id=1309584813493944549, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, language=CN, label=图3, caption=本工区小组合和邻区单点接收单炮分频结果(70~140 Hz)

(a) 小组合接收;(b) 单点接收.

, figureFileSmall=a0AXnSgiv0NyrIiFXKUPUA==, figureFileBig=Ti8Vqh/ohxRv1Zn9lBqOug==, tableContent=null), ArticleFig(id=1309584813594607846, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, language=EN, label=Fig.4, caption=The technical ideas for the development of seismic design work in this work area, figureFileSmall=vEcuFjd0X3PEpNvFHsXl5g==, figureFileBig=Dm6B7Sby0iokXEMMPqtsyA==, tableContent=null), ArticleFig(id=1309584813691076839, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, language=CN, label=图4, caption=本工区开发地震设计技术思路, figureFileSmall=vEcuFjd0X3PEpNvFHsXl5g==, figureFileBig=Dm6B7Sby0iokXEMMPqtsyA==, tableContent=null), ArticleFig(id=1309584813770768616, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, language=EN, label=Fig.5, caption=Three-dimensional complex geological model of the work area, figureFileSmall=o7E3jHZvFI2TrppShQZf0w==, figureFileBig=IUwh1v+Db7cmxZpTh9RoXA==, tableContent=null), ArticleFig(id=1309584813867237609, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, language=CN, label=图5, caption=本工区三维复杂地质模型

(a) 真地表模型;(b) 吴家坪组微幅构造;(c) 茅口组低序级断层;(d) 三维综合地质模型.

, figureFileSmall=o7E3jHZvFI2TrppShQZf0w==, figureFileBig=IUwh1v+Db7cmxZpTh9RoXA==, tableContent=null), ArticleFig(id=1309584813942735082, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, language=EN, label=Fig.6, caption=Demonstration of three-dimensional layer bin size, figureFileSmall=uuYJYDOVkv+TdGMuKlvEkw==, figureFileBig=6s9k9yDhZ26UzTn3sT6AaA==, tableContent=null), ArticleFig(id=1309584814022426859, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, language=CN, label=图6, caption=三维层位面元尺寸论证

(a) 侏罗系东岳庙段分析结果;(b) 二叠系吴家坪组分析结果.

, figureFileSmall=uuYJYDOVkv+TdGMuKlvEkw==, figureFileBig=6s9k9yDhZ26UzTn3sT6AaA==, tableContent=null), ArticleFig(id=1309584814123090156, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, language=EN, label=Fig.7, caption=PSDM imaging analysis of high and steep structures of different bins, figureFileSmall=hcWSa/s350ET9eHwQ8Brgw==, figureFileBig=6eJjFlKKSl9rbxgOESJAtA==, tableContent=null), ArticleFig(id=1309584814198587629, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, language=CN, label=图7, caption=不同面元高陡构造PSDM成像分析

(a) 面元6.25 m退化结果;(b) 面元12.5 m退化结果;(c) 面元25 m退化结果.

, figureFileSmall=hcWSa/s350ET9eHwQ8Brgw==, figureFileBig=6eJjFlKKSl9rbxgOESJAtA==, tableContent=null), ArticleFig(id=1309584814269890798, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, language=EN, label=Fig.8, caption=Analysis of micro-amplitude structures of different bins for PSF amplitude attributes, figureFileSmall=94SvqGPEd8czIrjCRTtQYg==, figureFileBig=PM9u6O2cSSa1Ox2bmGcUMw==, tableContent=null), ArticleFig(id=1309584814357971183, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, language=CN, label=图8, caption=不同面元微幅构造快速成像振幅属性分析

(a) 吴家坪组微幅构造沿层切片;(b) 面元12.5 m×12.5 m;(c) 面元12.5 m×25 m;(d) 面元25 m×25 m;(e) 面元25 m×50 m.

, figureFileSmall=94SvqGPEd8czIrjCRTtQYg==, figureFileBig=PM9u6O2cSSa1Ox2bmGcUMw==, tableContent=null), ArticleFig(id=1309584814425080048, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, language=EN, label=Fig.9, caption=Lighting analysis of different arrangement lengths of Cambrian target layer, figureFileSmall=YcqkvyA/oZVt0eLR4n80Vg==, figureFileBig=o92BETZDtADYTW/qdnpheA==, tableContent=null), ArticleFig(id=1309584814508966129, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, language=CN, label=图9, caption=不同排列长度寒武系目的层照明分析

(a)最大排列长度5087 m;(b)最大排列长度6071 m;(c)最大排列长度7121 m;(d)最大排列长度8213 m;(e)最大排列长度9331 m;(f)最大排列长度10468 m.

, figureFileSmall=YcqkvyA/oZVt0eLR4n80Vg==, figureFileBig=o92BETZDtADYTW/qdnpheA==, tableContent=null), ArticleFig(id=1309584814592852210, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, language=EN, label=Fig.10, caption=Velocity spectrum analysis of different arrangement lengths, figureFileSmall=82aC5GeYo+7cF99g47nm+A==, figureFileBig=OENVPmNNk0PqP2ST6XTXTA==, tableContent=null), ArticleFig(id=1309584814676738291, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, language=CN, label=图10, caption=不同排列长度速度谱分析

(a) 排列长度0~4000 m;(b) 排列长度0~5000 m;(c) 排列长度0~6000 m;(d) 排列长度0~7000 m;(e) 排列长度0~8000 m;(f) 排列长度0~9000 m;(g) 排列长度0~10000 m;(h) 排列长度0~11000 m;(i) 排列长度0~12000 m.

, figureFileSmall=82aC5GeYo+7cF99g47nm+A==, figureFileBig=OENVPmNNk0PqP2ST6XTXTA==, tableContent=null), ArticleFig(id=1309584814764818676, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, language=EN, label=Fig.11, caption=Lighting analysis of target layers with different receiving line distances in Wujiaping Formation, figureFileSmall=S4JyLZF0cpLv5wUj4thrhw==, figureFileBig=nGejFjih/f90iL2R6EjFkg==, tableContent=null), ArticleFig(id=1309584814857093365, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, language=CN, label=图11, caption=不同接收线距吴家坪组目的层照明分析

(a) 接收线距100 m;(b) 接收线距200 m;(c) 接收线距250 m;(d) 接收线距300 m;(e) 接收线距350 m.

, figureFileSmall=S4JyLZF0cpLv5wUj4thrhw==, figureFileBig=nGejFjih/f90iL2R6EjFkg==, tableContent=null), ArticleFig(id=1309584814932590838, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, language=EN, label=Fig.12, caption=Lighting analysis of target layers with different source line distances in Wujiaping Formation, figureFileSmall=S4FuPeVEFJ0lcdmdxdBKzQ==, figureFileBig=+Ecdz6/nxuwJLnQ2CcG/GQ==, tableContent=null), ArticleFig(id=1309584815020671223, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, language=CN, label=图12, caption=不同炮排距吴家坪组目的层照明分析

(a) 炮排距200 m;(b) 炮排距300 m;(c) 炮排距400 m;(d) 炮排距500 m.

, figureFileSmall=S4FuPeVEFJ0lcdmdxdBKzQ==, figureFileBig=+Ecdz6/nxuwJLnQ2CcG/GQ==, tableContent=null), ArticleFig(id=1309584815096168696, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, language=EN, label=Fig.13, caption=Detection and analysis of low-order fractures in the Maokou Formation at different azimuth angles, figureFileSmall=HsHActesFDv1qaq6T9jFNA==, figureFileBig=FR054WNXLeCkxoI4M0qbug==, tableContent=null), ArticleFig(id=1309584815180054777, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, language=CN, label=图13, caption=不同方位角茅口组低序级断裂检测分析

(a) 方位角0.26;(b) 方位角0.36;(c) 方位角0.53;(d) 方位角0.66;(e) 方位角0.79;(f) 方位角0.93.

, figureFileSmall=HsHActesFDv1qaq6T9jFNA==, figureFileBig=FR054WNXLeCkxoI4M0qbug==, tableContent=null), ArticleFig(id=1309584815272329466, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, language=EN, label=Fig.14, caption=Signal-to-noise ratio analysis of destination layers with different coverage times, figureFileSmall=Mh+buYzOyEH+3ahjFe+SSQ==, figureFileBig=iyKY/DAYBpxukSbEbMxMHg==, tableContent=null), ArticleFig(id=1309584815352021243, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, language=CN, label=图14, caption=不同覆盖次数目的层信噪比分析

(a) 有效覆盖次数31~33次;(b) 有效覆盖次数41~44次;(c) 有效覆盖次数62~65次;(d) 有效覆盖次数75~78次;(e) 有效覆盖次数100~104次;(f) 有效覆盖次数124~130次;(g) 有效覆盖次数-信噪比曲线.

, figureFileSmall=Mh+buYzOyEH+3ahjFe+SSQ==, figureFileBig=iyKY/DAYBpxukSbEbMxMHg==, tableContent=null), ArticleFig(id=1309584815431713020, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, language=EN, label=Fig.15, caption=Analysis of the impact of different surface conditions on the properties of the target layer, figureFileSmall=76wVnMydRMsykRNLzRzPMQ==, figureFileBig=5amTu9KBGZ+MC8bW4uvH6Q==, tableContent=null), ArticleFig(id=1309584815511404797, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, language=CN, label=图15, caption=不同地表条件对目的层属性影响分析

(a)东岳庙段属性统计-水平地表;(b)东岳庙段属性统计-起伏地表;(c)吴家坪组属性统计-水平地表;(d)吴家坪组属性统计-起伏地表.

, figureFileSmall=76wVnMydRMsykRNLzRzPMQ==, figureFileBig=5amTu9KBGZ+MC8bW4uvH6Q==, tableContent=null), ArticleFig(id=1309584815586902270, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, language=EN, label=Fig.16, caption=Analysis of the azimuth angle of the target layer of the Wujiaping Formation under different schemes, figureFileSmall=HZS8dkKY61nswSCAwpoVHQ==, figureFileBig=KS9/L2wmFGCJe4R5Yp5BTw==, tableContent=null), ArticleFig(id=1309584815666594047, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, language=CN, label=图16, caption=不同方案吴家坪组目的层方位角分析

(a) 2024年XC方案;(b) 方案1;(c) 方案2.

, figureFileSmall=HZS8dkKY61nswSCAwpoVHQ==, figureFileBig=KS9/L2wmFGCJe4R5Yp5BTw==, tableContent=null), ArticleFig(id=1309584815746285824, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, language=EN, label=Fig.17, caption=Statistical analysis of the detection distance of different schemes, figureFileSmall=ty5Kbq3vkbbpHOStqOiS3A==, figureFileBig=R6+X4hv1DPkJzSzHHD3izQ==, tableContent=null), ArticleFig(id=1309584815821783297, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, language=CN, label=图17, caption=不同方案面元炮检距统计分析

(a) 2024年XC方案(面元25 m×25 m);(b) 方案1(面元25 m×25 m);(c) 方案2(面元25 m×25 m).

, figureFileSmall=ty5Kbq3vkbbpHOStqOiS3A==, figureFileBig=R6+X4hv1DPkJzSzHHD3izQ==, tableContent=null), ArticleFig(id=1309584815897280770, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, language=EN, label=Fig.18, caption=Pre-stack uniformity analysis of different schemes, figureFileSmall=iDgeu8SnOC7u8hWixBKY5g==, figureFileBig=raKWSznq3ifAmbOeGghteg==, tableContent=null), ArticleFig(id=1309584815981166851, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, language=CN, label=图18, caption=不同方案叠前均匀性分析

(a)2024年XC方案(面元25 m×25 m);(b)方案1(面元25 m×25 m);(c)方案2(面元25 m×25 m).

, figureFileSmall=iDgeu8SnOC7u8hWixBKY5g==, figureFileBig=raKWSznq3ifAmbOeGghteg==, tableContent=null), ArticleFig(id=1309584817713414404, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, language=EN, label=Fig.19, caption=Destination layer lighting results for different schemes, figureFileSmall=LKOf7X6IFJ/y5pNfqbni5g==, figureFileBig=BoGy/CkzRRqOCFu0dD1/9Q==, tableContent=null), ArticleFig(id=1309584817830854917, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, language=CN, label=图19, caption=不同方案目的层照明结果

(a) 2024年XC方案;(b) 方案1;(c) 方案2.

, figureFileSmall=LKOf7X6IFJ/y5pNfqbni5g==, figureFileBig=BoGy/CkzRRqOCFu0dD1/9Q==, tableContent=null), ArticleFig(id=1309584817918935302, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, language=EN, label=Fig.20, caption=Comparison of 3D data imaging of new and old acquisition data in the two neighboring areas, figureFileSmall=FT9Eymww+kjRInkPlBRKWA==, figureFileBig=CbIR7Z4MlX7oyzmqCRyRBw==, tableContent=null), ArticleFig(id=1309584818011209991, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, language=CN, label=图20, caption=两期邻区新老采集三维资料成像对比

(a) 2020年对早期JN三维重处理;(b) 2024年XC三维.

, figureFileSmall=FT9Eymww+kjRInkPlBRKWA==, figureFileBig=CbIR7Z4MlX7oyzmqCRyRBw==, tableContent=null), ArticleFig(id=1309584818103484680, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, language=EN, label=Fig.21, caption=Comparison of key links in the processing procedures for two periods of 3D data, figureFileSmall=eFP1t+MMGOJByrCZAxJgeg==, figureFileBig=oeEbumOTl7DK/wnyYc2mDA==, tableContent=null), ArticleFig(id=1309584818195759369, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, language=CN, label=图21, caption=两期三维资料处理流程关键环节对比

(a)2020年早期JN三维重处理流程;(b) 2024年XC三维处理流程.

, figureFileSmall=eFP1t+MMGOJByrCZAxJgeg==, figureFileBig=oeEbumOTl7DK/wnyYc2mDA==, tableContent=null), ArticleFig(id=1309584818317394186, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, language=EN, label=Table1, caption=

Basic parameters of the observation system

, figureFileSmall=null, figureFileBig=null, tableContent=
关键参数优选参数
面元尺寸≤12.5 m×25 m
覆盖次数二叠系有效覆盖次数不低于100次
最大排列长度吴家坪组7000 m左右; 寒武系下组合9000 m左右
接收线距200 m左右
炮排距300 m左右
方位角根据低序级裂缝检测结果确定0.7左右较合适
), ArticleFig(id=1309584818409668875, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, language=CN, label=表1, caption=

观测系统基本参数

, figureFileSmall=null, figureFileBig=null, tableContent=
关键参数优选参数
面元尺寸≤12.5 m×25 m
覆盖次数二叠系有效覆盖次数不低于100次
最大排列长度吴家坪组7000 m左右; 寒武系下组合9000 m左右
接收线距200 m左右
炮排距300 m左右
方位角根据低序级裂缝检测结果确定0.7左右较合适
), ArticleFig(id=1309584818564858124, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, language=EN, label=Table2, caption=

Optimal design scheme of observation system

, figureFileSmall=null, figureFileBig=null, tableContent=
2024邻区XC三维方案1方案2
观测系统L32×S4×R208×1+线束式L36×S4×R416×1+线束式L36×S4×R432×1+线束式
纵向观测形式5175-25-50-25-51755187.5-12.5-25-12.5-5187.55387.5-12.5-25-12.5-5387.5
面元大小25 m×25 m12.5 m×25 m12.5 m×25 m
覆盖次数208次(16×13)234次(18×13)324次(18×18)
接收道数6656(208×32)道14976(416×36)道15552(432×36)道
道间距/接收线距50 m/200 m25 m/200 m25 m/200 m
炮点距/炮排距50 m/400 m50 m/400 m50 m/300 m
纵向最大炮检距5175 m5187.5 m5387.5 m
最大排列长度6071.3 m6300.1 m6465.7 m
最大非纵距3175 m3575 m3575 m
束间滚动距200 m(1 L)200 m(1 L)200 m(1 L)
横纵比0.6140.690.66
炮道密度33.28万74.88万103.68万
炮密度505066.66
), ArticleFig(id=1309584818665521421, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, language=CN, label=表2, caption=

观测系统优化设计方案

, figureFileSmall=null, figureFileBig=null, tableContent=
2024邻区XC三维方案1方案2
观测系统L32×S4×R208×1+线束式L36×S4×R416×1+线束式L36×S4×R432×1+线束式
纵向观测形式5175-25-50-25-51755187.5-12.5-25-12.5-5187.55387.5-12.5-25-12.5-5387.5
面元大小25 m×25 m12.5 m×25 m12.5 m×25 m
覆盖次数208次(16×13)234次(18×13)324次(18×18)
接收道数6656(208×32)道14976(416×36)道15552(432×36)道
道间距/接收线距50 m/200 m25 m/200 m25 m/200 m
炮点距/炮排距50 m/400 m50 m/400 m50 m/300 m
纵向最大炮检距5175 m5187.5 m5387.5 m
最大排列长度6071.3 m6300.1 m6465.7 m
最大非纵距3175 m3575 m3575 m
束间滚动距200 m(1 L)200 m(1 L)200 m(1 L)
横纵比0.6140.690.66
炮道密度33.28万74.88万103.68万
炮密度505066.66
), ArticleFig(id=1309584818770379022, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, language=EN, label=Table3, caption=

Comparison of exploration costs of observing system schemes

, figureFileSmall=null, figureFileBig=null, tableContent=
2024年
XC三维
方案1方案2
满覆盖面积km2663663663
一次覆盖面积km2130913261336
束数257258258
炮工作量炮面积(km2)961967966
总炮数491684944465476
炮密度(炮/km2)505066.66
炮排数545472
道工作量道面积(km2)168417181740
总道数169328345216349728
炮道密度(万)33.3万74.88万103.68万
排列线数288293293
), ArticleFig(id=1309584818892013839, tenantId=1146029695717560320, journalId=1308397311409356903, articleId=1309584797903716470, language=CN, label=表3, caption=

观测系统方案勘探成本对比

, figureFileSmall=null, figureFileBig=null, tableContent=
2024年
XC三维
方案1方案2
满覆盖面积km2663663663
一次覆盖面积km2130913261336
束数257258258
炮工作量炮面积(km2)961967966
总炮数491684944465476
炮密度(炮/km2)505066.66
炮排数545472
道工作量道面积(km2)168417181740
总道数169328345216349728
炮道密度(万)33.3万74.88万103.68万
排列线数288293293
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川东地区二次采集高精度观测系统方案优化设计——以JN工区为例
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肖云飞 1 , 霍浩 2 , 黄鹏 1 , 王昀 1 , 罗浩 1 , 薛维忠 1 , 王雅如 1 , 王一雯 1
地球物理学进展 | 应用地球物理学(油气、金属矿、海洋、环境、工程、仪器等) 2026,41(1): 325-340
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地球物理学进展 |应用地球物理学(油气、金属矿、海洋、环境、工程、仪器等) 2026 , 41 (1) : 325 -340
川东地区二次采集高精度观测系统方案优化设计——以JN工区为例
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肖云飞1 , 霍浩2, 黄鹏1, 王昀1, 罗浩1, 薛维忠1, 王雅如1, 王一雯1
作者信息
  • 1中石化石油物探技术研究院有限公司, 南京 211103
  • 2中国石化江汉油田分公司勘探开发研究院, 武汉 430223
作者简介:

肖云飞, 男, 1984年生, 高级工程师, 现主要从事地震采集方法技术研究工作.E-mail:

Optimal design of high precision observation system for secondary acquisition in the eastern sichuan region——a case study in the JN area
YunFei XIAO1 , Hao HUO2, Peng HUANG1, Yun WANG1, Hao LUO1, WeiZhong XUE1, YaRu WANG1, YiWen WANG1
Affiliations
  • 1SINOPEC Geophysical Research Institute Co., Ltd., Nanjing 211103, China
  • 2Research Institute of Exploration and Development, Jianghan Oilfield Company, SINOPEC, Wuhan 430223, China
出版时间: 2026-02-20 doi: 10.6038/pg2026JJ0069
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JN工区构造上位于四川盆地川东高陡褶皱带石柱复向斜, 油气资源勘探潜力大, 于2007年首次进行三维地震采集, 由于早期三维采集方案针对性不足, 存在方位角小、覆盖次数低、滚动线距大采集脚印严重等问题, 采集资料后期经过多次重处理也难以满足目标层系勘探开发需求, 邻区多个区块近几年通过优化设计观测系统方案, 资料成像效果改善明显, 有力支撑目标层勘探评价.本文针对本工区勘探开发的采集难点, 结合邻区观测系统优化设计经验, 通过基于三维复杂地质模型的观测系统设计技术, 开展观测系统关键参数的论证, 提出了满足本区勘探开发需求的小面元、宽方位及高覆盖的观测系统方案, 通过不同目标体成像结果的振幅和相干体属性对比分析论证了观测系统的可行性, 为JN工区三维二次采集高精度观测系统方案优化设计提供理论指导和依据.

JN工区  /  勘探开发  /  二次采集  /  高精度观测系统  /  三维地质模型  /  振幅和相干体属性

The JN area is located in the lithogenic syncline of the high and steep fold belt in east Sichuan Basin, The exploration potential of oil and gas resources is great, the first 3D seismic acquisition was carried out in 2007, due to the lack of pertinence of the early 3D acquisition scheme, There are some problems, such as small azimuth, low folds, large rolling line distance and serious acquisition footprints, it is difficult to meet the demand of exploration and development of target layer after repeated reprocessing of acquired data, in recent years, the observation system scheme of several blocks in the adjacent area have been optimized, the imaging effect of the data has been improved significantly, which strongly supports the exploration and evaluation of the target layer. In view of the acquisition difficulties of exploration and development in this work area, combined with the optimization design experience of observation system in neighboring areas, this paper demonstrates the key parameters of the observation system through the observation system design technology based on three-dimensional complex geological model, and puts forward an observation system scheme with small bin, wide azimuth and high fold that meets the exploration and development needs in this area. The feasibility of the observation system is demonstrated by comparing the amplitude and the coherence attribute of different object images, which provides theoretical guidance and basis for the optimization design of the 3D secondary acquisition high-precision seismic observation system in JN area.

JN area  /  Exploration and development  /  Secondary acquisition  /  High precision observation system  /  Three-dimensional geological model  /  Amplitude and coherence properties
肖云飞, 霍浩, 黄鹏, 王昀, 罗浩, 薛维忠, 王雅如, 王一雯. 川东地区二次采集高精度观测系统方案优化设计——以JN工区为例. 地球物理学进展, 2026 , 41 (1) : 325 -340 . DOI: 10.6038/pg2026JJ0069
YunFei XIAO, Hao HUO, Peng HUANG, Yun WANG, Hao LUO, WeiZhong XUE, YaRu WANG, YiWen WANG. Optimal design of high precision observation system for secondary acquisition in the eastern sichuan region——a case study in the JN area[J]. Progress in Geophysics, 2026 , 41 (1) : 325 -340 . DOI: 10.6038/pg2026JJ0069
JN工区位于鄂西渝东地区,自西向东依次为方斗山复背斜、石柱复向斜、齐岳山复背斜等,构造主体主要受方斗山断层和齐岳山断层控制,其中在石柱复向斜带内发现JN气田(周洋,2012),油气资源勘探潜力大.自2018年先后在二叠系、侏罗系常规/非常规油气取得突破,油气勘探工作快速推进,是下步深化勘探及开发评价的有利地区,但本工区三维采集时间比较早,观测系统方案针对性不足,存在方位角小、覆盖次数低、滚动线距大(滚动3线1200 m)采集脚印严重等问题,采集资料后期经过多次重处理也难以满足目标层系勘探开发需求,邻区多区块近年来通过优化设计观测系统方案,资料成像效果改善明显,有力支撑目标层勘探评价.为进一步加快JN地区多层系多领域整体评价与商业油气发现,落实侏罗系浅层气、二叠系茅口组及吴家坪组页岩气,深层震旦—寒武系新领域目标,结合有利目标范围及矿权,对部署探区重新进行二次采集,与邻区高精度资料进行大连片处理,期望整体推进JN地区勘探开发进程.
对于二次采集阶段,常规的“点、线”概念的观测系统参数论证难以满足设计要求,需要开展基于三维地质模型的观测系统方案设计论证,许多学者对相关论证思路及方法进行了研究.基于地质目标模型利用三维高斯射线束开展目的层照明实现观测系统关键参数论证及方案优化设计,提出了更合理的观测系统方案(殷厚成和邓飞,2015;肖云飞和殷厚成,2017);对于射线方法而言波动方程在动力学方面更加具有优势,有学者利用波动方程模拟技术开展观测系统方案论证,并基于叠前成像需求的波动方程对面元属性进行对比分析,采集资料成像效果改善明显(蒋韬等,2008;张永华等,2019;崔庆辉等,2020);同时利用射线和波动各自优势相结合的方式开展观测系统设计论证,提高了观测系统参数论证的精度,使得采集参数论证更加合理,在实际应用中取得了良好的效果(刘晨,2013;张光德,2013;梁向豪等,2015);对于炮点最佳激发范围优化方面,目前主要有利用菲涅尔带半径对高斯束照明能量从新优化,实现炮点优化处理(杨晶,2024)以及利用三维单程傅里叶有限差分波场算子求取地表照明能量分布,确定最佳激发范围,明显提高照明阴影区的照明强度,改善地下阴影区的成像质量(朱金平等,2011);对于观测系统方案评价方面,主要有三维观测系统属性均匀性的定量分析技术,可以对观测系统方案优选提供依据(吴永国等,2012)以及基于叠前偏移成像的高密度观测系统评价方法,能较好地实现地震采集方案优选(邸志欣等,2022);在一体化评价方面,建立了三维开发地震采集、处理、解释和滚评一体化的模式,为油田勘探开发提供了强有力的物探技术支撑.
通过文献调研发现,基于三维地质目标模型的采集设计应用已经很成熟,也取得较好的应用效果,但针对JN工区二次采集阶段存在的地震勘探问题,通过在三维模型中构建特殊地质目标体,并在观测系统参数论证过程中加以考虑,最后开展基于地质目标体的高精度观测系统方案优化设计还是首次.本文通过从满足JN工区三维二次采集需求出发,对重点观测系统参数进行论证及优化设计(面元、最大排列长度、接收线距、方位角、覆盖次数等),提出最佳的观测系统方案,为野外实际三维二次采集提供理论依据和指导,实现JN地区大连片处理,改善地震资料成像效果,达到满足此次二次采集勘探目的.
通过本工区早期采集资料解决地质问题能力,以及邻区高精度采集效果对比分析,确定以下几个方面问题是本次二次采集需要重点关注:(1)侏罗系浅层埋深1500 m以浅,覆盖次数不足10次,反射同相轴连续性差,无法指导浅层钻井提速;(2) 太平镇断层及龙驹坝等高陡构造膏盐强烈揉皱和小断块发育,存在波组稳定性差、波场不健全问题,资料品质差,影响储量提交及开发井组部署,需进一步提升地震成像精度;(3)吴家坪组微幅构造识别问题,JN区块实钻结果表明工区发育幅度小于20 m、跨度小于100 m的微幅构造,地震剖面仅出现轻微的波组扭动或振幅能量变化,很难精细准确解释,直接影响靶点预测精度与钻遇率;(4)茅口组低序级断层识别问题,受多期构造挤压应力影响,断裂及褶皱发育,受地震分辨率影响(纵向分辨率15 m,横向分辨率25 m),低序级断层特别是断距小于15 m的断距无法识别,对水平井设计和地质导向带来挑战.
采集过程主要包括激发、接收及观测系统设计三个环节,本次二次采集主要是基于上述问题从三个环节寻找针对性的措施.
(1) 激发环节:由于工区地表出露岩性主要为侏罗系砂岩、泥岩、砂泥岩,地震地质条件相对较好;灰岩只占极小部分(如图 1),激发条件总体较好,分频结果表明,资料频带较宽,信噪比较高,资料基础较好,有利于高分辨率采集(如图 2),整个JN工区激发参数基本相当,只是井深和药量细微优化,具体激发参数由野外试验确定.
(2) 接收环节:主要是从早期的小组合到现在邻区的单点单道接收,但是通过对不同接收方式的单炮进行分频扫描,发现对于高频段(70~140 Hz)资料表明组合接收信噪比较高,有效频宽较宽,节点高频噪声较强(如图 3),也是通过野外进行小串组合和单点接收试验,确定最佳接收方式(陈浩,2023).
所以本文主要是在观测系统方案设计方面开展针对性研究,提出最佳的观测系统方案满足本区二次采集设计需求.
通过本工区早期地震采集资料解决地质问题能力及本次二次采集的地质任务,结合邻区高精度采集成像效果改善,综合多因素制定本次的采集设计技术思路(如图 4),本文涉及的观测系统参数论证及方案评价技术主要有以下几个方面:
(1) 基于非拓扑一致性的三维网格追踪建模技术(成都理工大学,2017;唐云等,2011;邓飞和周亚同,2009;邓飞和黄地龙,2009):通过导入或者生成曲面,对曲面延拓、交互裁剪操作,实现边界自动封闭及块体自动追踪处理,支持深度域二维解释剖面和三维解释层位数据建模.
(2) 三维观测系统面元均匀性评价技术(吴永国等,2012;中国石油化工股份有限公司和中国石油化工股份有限公司石油物探技术研究院,2020):计算每个面元方位角和炮检距二维空间分布与标准面元的相关度,定量评价观测系统面元的均匀性.
(3) 基于三维目的层高斯束双向照明技术(殷厚成和邓飞,2015):将波场分解到具有一定宽度的射线束上实现波场的模拟和延拓,通过检波点射线坐标反向变换,根据互易性原理实现观测系统双向照明,不仅大幅度提高了计算效率,而且有效改善了照明精度.
(4) 基于点扩散函数(PSF)的快速成像观测系统论证评价技术(向晨等,2022):通过射线追踪正演等方式快速获取点扩散函数,实现对Hessian算子的近似,再利用高维空间卷积算法,直接实现模型的偏移成像,提升计算效率,满足了观测系统设计阶段对成像高时效性的实际需求.
进入二次采集部署阶段,需要基于三维复杂地质模型开展观测系统设计论证,因而对于三维模型的构建至关重要,主要考虑以下几个方面:
(1) 真地表模型:工区地形起伏剧烈,相对高差达1400 m,传统水平地表三维模型满足不了要求,通过获取工区实际地表高程数据(DEM数据)建立真地表模型.
(2) 构造模型:通过收集工区深度域解释层位数据和断层数据,利用基于非拓扑一致性的三维网格追踪建模技术实现整个三维构造模型的建立.
(3) 微幅构造及低序级断层模型:二次采集设计主要面临的地质问题,需要在三维模型中得到体现,微幅构造主要发育在二叠的吴家坪组内,厚度5 m,微幅构造跨度共设计四个尺寸,分别是50 m、100 m、150 m和200 m;低序级断层主要发育在二叠的茅口组,共涉及五组不同断距,分别是5 m、10 m、15 m、20 m和30 m.
通过JN工区地表、构造及储层特征,建立三维综合地质模型(如图 5),模型尺寸大小,长为56800 m,宽为34200 m,深度为13000 m,包含的主要目的层有侏罗系东岳庙段、中三叠巴东组、二叠吴家坪组、二叠茅口组、志留系及寒武系等.
基于三维地质模型及实际资料主要开展面元、覆盖次数、最大排列长度、接收线距/炮排距、方位角等关键参数论证分析.
(1) 三维目的层位参数论证
利用三维目的层位参数论证方法,求取整个目的层上满足横向分辨率要求的面元尺寸,有效解决传统方法通过选取几个典型点位置计算的局限性.侏罗系东岳庙段目的层面元分析范围为18.5 m至500 m,二叠系吴家坪组目的层面元分析范围为17.6 m至500 m;综合侏罗系及吴家坪组目的层分析结果,建议面元选择应不大于18 m(如图 6).
(2) 不同面元高陡构造模拟资料PSDM成像分析
太平镇断层及龙驹坝等高陡构造成像信噪比低,通过典型二维模型开展不同面元尺寸高陡构造成像退化分析,可以发现面元25 m高陡构造成像不清晰,6.25 m高陡构造成像精度最高,面元12.5 m高陡构造成像满足要求,因此从高陡构造成像分析面元尺寸不应大于12.5 m(如图 7).
(3) 不同面元特殊目标储层快速成像分析
选取微幅构造作为特殊目标体进行不同面元尺寸三维快速成像,提取相应振幅属性进行量化分析,优选最佳的面元尺寸满足开发勘探需求,可以发现对于微幅构造成像,面元25 m×25 m和面元25 m×50 m成像精度不高,而面元6.25 m×12.5 m和面元12.5 m×25 m成像精度差异不大(如图 8),通过分析认为面元不应大于12.5 m×25 m能满足微幅构造成像需求.
综合考虑三维目的层满足横向分辨率要求、不同面元高陡构造成像及不同面元微幅构造成像需求,本工区面元尺寸不应大于12.5 m×25 m.
本次开发地震主探二叠吴家坪组,同时兼探深层寒武系,因此通过深层目的层高斯束照明及模拟资料速度谱分析开展最大排列长度论证.
(1) 不同排列长度目的层高斯束照明分析
对于寒武系目的层设计多组不同排列长度进行照明,通过照明分析,当最大排列长度小于9331 m,随着排列长度的增加,照明能量变化明显,但是当达到9331 m或者再增加,目的层照明能量差异不大(图中箭头所示),因此对于寒武系目的层最大排列长度不小于9331 m较适合(如图 9).
(2) 不同排列长度速度谱分析
从模拟资料不同排列长度退化对于速度谱收敛情况分析可知,随着排列长度的增大,有利于速度谱的收敛(红色箭头为吴家坪位置,绿色箭头为寒武系位置),对于吴家坪组排列长度不小于7000 m;寒武系下组合排列长度不小于9000 m(如图 10).
综合两者考虑,基础观测系统满足吴家坪组最大排列长度采用7000 m左右比较合适.后期节点采集观测系统拓展满足寒武系最大排列长度建议不小于9000 m.
通过基于三维模型目的层照明开展接收线距和炮排距论证,通过照明分析可知,减小接收线距能明显改善吴家坪组照明强度,建议不大于200 m较合适(如图 11);减小炮排距能明显改善吴家坪组照明强度,炮排距越小勘探成本越高,建议300 m左右较合适(如图 12).
方位角参数的论证对于JN工区开发地震采集至关重要,基于三维模型对茅口组低序级断裂进行快偏成像,提取对应的相干属性体对比分析,对应的模型切片如图 9a所示,结果表明随着方位角的增大,茅口组断层刻画更清楚,能量更高,建议0.7左右较合适,从模型角度能够检测到5 m小断裂(如图 13).
根据实际资料进行二叠目的层不同有效覆盖次数退化处理分析,提取二叠吴家坪组在复杂构造部位成像剖面信噪比,建立目的层有效覆盖次数-信噪比曲线,指导覆盖次数的优选,通过曲线可知石柱复向斜二叠系有效覆盖次数达到100次,为信噪比拐点(如图 14).
本工区地表条件非常复杂,起伏剧烈(具体描述见2.1章节内容),对于目的层属性影响较大,为了量化对比论证,在图 5所述模型基础上,把起伏地表改成水平地表,模型其他部分及地层速度不变,基于相同的一套观测系统方案(基础面元12.5 m×25 m),采用两点射线计算方法对侏罗系东岳庙段及二叠系吴家坪目的层覆盖次数属性进行对比分析.考虑到由于模型尺寸大,使得计算量较大,为了便于计算,同时扩大面元(50 m×50 m)进行属性统计分析,其他参数保持不变,目的层覆盖次数统计如图 15所示,可知地表起伏影响目的层属性均匀性,目的层越浅影响越明显,反之亦然.
根据2.2节关键参数论证结果,确定观测系统基本参数(如表 1).在基本参数基础上,提出2套方案(方案1、方案2),最左侧是邻区XC高精度三维观测系统方案,目的是进行方案对比(如表 2),通过对比可知,本次二次采集观测系统方案在邻区基础上主要在面元、炮排距、方位角和覆盖次数等方面得到进一步改善和提升.
下面对提出的两套方案和邻区方案进行属性等方面对比分析,再结合勘探成本投入,最后优选最佳的观测系统方案.
(1) 观测系统属性分析
通过对提出的两套方案和邻区XC三维方案属性进行对比分析,从目的层方位角玫瑰图可知,方案1和方案2基本相当,要优于2024年XC方案(如图 16);从面元炮检距分布结果可知,相同面元尺寸条件下方案1和方案2比邻区方案覆盖次数更高、偏移距更加均匀分布(如图 17);从叠前均匀性分析结果可知,相同面元尺寸条件下方案2优于方案1优于2024年XC方案(如图 18).
(2) 目的层照明分析
基于构建的三维模型对提出的两套方案及2024年XC方案进行目的层照明分析,从照明结果可知方案2优于方案1优于2024年XC三维(如图 19).
(3) 勘探成本对比分析
本次开发部署满次面积663 km2,对方案1、方案2和2024年XC方案进行勘探成本及工作量统计分析,对比可知基于总炮数计算方案1成本低于方案2(如表 3).
结合上述三个方面的对比分析,围绕部署地质目标,对观测系统方案进行优选,工区总体采用方案1(炮排距400 m),但在产建主体区采用方案2(炮排距300 m),其他参数一致.
本次推荐方案相较于2024XC三维对比,具有更小面元、更高覆盖、更宽方位角及更长的排列长度,对于微幅构造成像和低序级别裂缝检测具有更强的针对性;加之XC方案在最近部署的几块三维中,取得了较好的效果,落实页岩层的地层展布特征、断裂成像方面满足需求,相较于2020年对早期JN三维采集(2007年采集)资料重处理成像效果大幅改善(如图 20),两期资料处理流程总体一致(如图 21),差异步骤灰色充填标注,因此本方案解决地质问题能力能够得到保障.
通过针对JN地区二次采集阶段的观测系统优化设计研究,得出以下几点认识与结论:
(1) 本次设计论证的关键参数,面元不大于12.5 m×25 m、排列长度吴家坪组7000 m左右、深层寒武系9000 m左右、二叠系有效覆盖次数不低于100次、接收线距200 m左右、方位角0.7左右,提出的观测系统优化方案符合小面元、高覆盖、宽方位、长排列的技术思路,能够有效解决JN工区开发阶段面临的微幅构造及高陡构造成像、低序级断裂识别问题.
(2) 对于中石化油田面临二次采集阶段的重点探区,通过构建三维复杂精细地质模型,把二次采集阶段面临的地质问题转化为特殊目标体融入三维模型中开展观测系统关键参数论证分析是非常有必要的,可以加强与二次采集观测系统设计间的联系,提高采集方案的合理性、降低二次采集地震勘探的风险.

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2026年第41卷第1期
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doi: 10.6038/pg2026JJ0069
  • 接收时间:2025-05-06
  • 首发时间:2026-09-23
  • 出版时间:2026-02-20
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  • 收稿日期:2025-05-06
  • 修回日期:2025-11-29
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    1中石化石油物探技术研究院有限公司, 南京 211103
    2中国石化江汉油田分公司勘探开发研究院, 武汉 430223
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2种不同金属材料的力学参数
科
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属数
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genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)
属
Genus
种数
Number of
species
占总种数比例
Percentage of total
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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