The study of deep tight sand conglomerate sweet spot identification technology in SZ area of northern Songliao basin

PreviousNext No AccessSPG/SEG 2016 International Geophysical Conference, Beijing, China, 20-22 April 2016The study of deep tight sand conglomerate sweet spot identification technology in SZ area of northern Songliao basinAuthors: Cui FenglinCao GuoyinWang JianminWu XiaoquanZhang HuiCui FenglinGeophysical Exploration Company of Daqing Drilling & Exploration Engineering Corporation, Daqing City, Heilongjiang Province. Postcode:163357Search for more papers by this author, Cao GuoyinGeophysical Exploration Company of Daqing Drilling & Exploration Engineering Corporation, Daqing City, Heilongjiang Province. Postcode:163357Search for more papers by this author, Wang JianminGeophysical Exploration Company of Daqing Drilling & Exploration Engineering Corporation, Daqing City, Heilongjiang Province. Postcode:163357Search for more papers by this author, Wu XiaoquanGeophysical Exploration Company of Daqing Drilling & Exploration Engineering Corporation, Daqing City, Heilongjiang Province. Postcode:163357Search for more papers by this author, and Zhang HuiGeophysical Exploration Company of Daqing Drilling & Exploration Engineering Corporation, Daqing City, Heilongjiang Province. Postcode:163357Search for more papers by this authorhttps://doi.org/10.1190/IGCBeijing2016-106 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Abstract Aiming at new fields for deep natural gas exploration in Daqing prospecting areas, the paper explore to solve the technology problems of deep tight sand conglomerate sweet spot identification from 5 aspects as follow: ① Develop prestack reverse time migration to improve the imaging precision for deep complex structures. ② Develop high precision horizon calibration, wavelet transform interpretation data reconstruction and fine stratigraphic sequence division to improve further delineation precision for deep complex structures. ③ Adopt facies control attribute analysis technology to improve the division precision for fine sedimentary micro facies of the target layers. ④ Adopt borehole environment correction for well logging curves, normalized processing, and subdivision seismic sequence to optimize sensitive parameters, to improve the accuracy and quality of prestack inversion. ⑤ Based on prestack inversion, developed favorable gas identification methodes and multi-data volumes crossplot detection and AVO characteristics analysis of reservoirs, etc, carry out the integrative identification technology for deep tight reservoirs "sweet spot", the accuracy and reliability of identification “sweet spot” are greatly improved. Above-mentioned methods have been applied in 3D seismic data about 190km2 in SZ area of northern Songliao basin, high yield industrial gas flows have been obtained in 2 horizontal wells drilled, new breakthroughs have been made in new domain of deep tight sand conglomerate exploration. Keywords: prestack, reverse time migration, inversionPermalink: https://doi.org/10.1190/IGCBeijing2016-106FiguresReferencesRelatedDetails SPG/SEG 2016 International Geophysical Conference, Beijing, China, 20-22 April 2016ISSN (online):2159-6832Copyright: 2016 Pages: 749 publication data© 2016 Published in electronic format with permission by the Society of Exploration Geophysicists and Society of Petroleum GeophysicistsPublisher:Society of Exploration Geophysicists HistoryPublished Online: 22 Apr 2016 CITATION INFORMATION Cui Fenglin, Cao Guoyin, Wang Jianmin, Wu Xiaoquan, and Zhang Hui, (2016), "The study of deep tight sand conglomerate sweet spot identification technology in SZ area of northern Songliao basin," SEG Global Meeting Abstracts : 359-362. https://doi.org/10.1190/IGCBeijing2016-106 Plain-Language Summary Keywordsprestackreverse time migrationinversionPDF DownloadLoading ...