First Break最新文献_第9页

A Pre-Stack Inversion Method Based on a Self-Facies-Control Low-Frequency Model and its Application in Offshore Reservoirs 基于自相控低频模型的叠前反演方法及其在海上储层中的应用

First Break Pub Date : 2023-11-01 DOI: 10.3997/1365-2397.fb2023088

Wang Zongjun, MA Liangtao, Dong Hongchao

{"title":"A Pre-Stack Inversion Method Based on a Self-Facies-Control Low-Frequency Model and its Application in Offshore Reservoirs","authors":"Wang Zongjun, MA Liangtao, Dong Hongchao","doi":"10.3997/1365-2397.fb2023088","DOIUrl":"https://doi.org/10.3997/1365-2397.fb2023088","url":null,"abstract":"Seismic inversion is one of the main methods for reservoir prediction by integrating logging and seismic information, but the rationality of the prediction results is heavily dependent on the initial model. For offshore oil fields, limited by the sparse and non-uniform distributed wells, the initial model obtained by mathematical interpolation is often deviated from the actual reservoir distribution, especially for the complex sedimentary environment case. Sedimentary facies control can solve this problem to a certain extent, but it is easily affected by the subjective understanding. In this paper, a seismic inversion technology based on self-facies-control low-frequency model is studied, which can make full use of the horizontal identification and spatial structure to constrain the ability of seismic data. Based on the self-facies-control initial model, the pre-stack geostatistical inversion is suitable for non-parallel structure reservoir, and the inversion results highlight the reservoir spatial structure. The method effectively improves the spatial structure resolution of the inversion result, and achieved the ideal application effect in the actual oilfield. The predicted coincidence of sand bodies with thickness greater than 12 m is more than 85%, and the average drilling rate of sandstone in the horizontal section of the horizontal well is 92.77%.","PeriodicalId":35692,"journal":{"name":"First Break","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135510663","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Advances in Seismic Acquisition: a Novel Approach Using Autonomous Underwater Gliding Nodes 基于自主水下滑动节点的地震采集新方法

First Break Pub Date : 2023-11-01 DOI: 10.3997/1365-2397.fb2023091

Fabio Mancini, Ben Hollings, Giorgio Mangano, Dhimitraq Gjini, Damien Dieulangard, Ted Manning, Henry A. Debens

{"title":"Advances in Seismic Acquisition: a Novel Approach Using Autonomous Underwater Gliding Nodes","authors":"Fabio Mancini, Ben Hollings, Giorgio Mangano, Dhimitraq Gjini, Damien Dieulangard, Ted Manning, Henry A. Debens","doi":"10.3997/1365-2397.fb2023091","DOIUrl":"https://doi.org/10.3997/1365-2397.fb2023091","url":null,"abstract":"This article discusses the development of a novel marine seismic acquisition system that utilises a fleet of fully autonomous underwater vehicles (AUVs) as ocean-bottom nodes (OBNs). The primary objective is to eliminate remotely operated vehicles (ROVs) or use of ropes for the deployment and recovery of ocean-bottom seismic sensors, thereby enabling ocean-bottom seismic surveys that are significantly more efficient, cost-effective with improved environmental impact. This is achieved by developing buoyancy driven AUVs, which offer long endurance and are capable of self-locating to pre-determined positions without the need for any direct surface control. Additionally, the system proposed is designed for scalability, allowing for large inventories of AUVs to be deployed in parallel to satisfy the requirements of large-scale seismic surveys. This system is expected to service sub-surface imaging needs of both hydrocarbon business and emerging low carbon businesses such as CCS. This system will also permit a shift from dense source side to dense receiver side sampling, with a clear benefit to limit sound emission levels even as sampling density (and so data quality) increases.","PeriodicalId":35692,"journal":{"name":"First Break","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135515111","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Application of 3D Static Modelling and Reservoir Characterisation for Optimal Field Development: a Case Study from the Kharita Formation, Karam Field, Western Desert, Egypt 三维静态建模和油藏特征在油田开发中的应用——以埃及西部沙漠Karam油田Kharita组为例

First Break Pub Date : 2023-11-01 DOI: 10.3997/1365-2397.fb2023089

Ahmed Bakr, Mohamed Reda, Mohamed Fathy

{"title":"Application of 3D Static Modelling and Reservoir Characterisation for Optimal Field Development: a Case Study from the Kharita Formation, Karam Field, Western Desert, Egypt","authors":"Ahmed Bakr, Mohamed Reda, Mohamed Fathy","doi":"10.3997/1365-2397.fb2023089","DOIUrl":"https://doi.org/10.3997/1365-2397.fb2023089","url":null,"abstract":"Summary The Kharita reservoir in Karam field is a prolific Early Cretaceous reservoir located in Badr El-Din concessions, Abu Gharadig Basin, Western Desert, Egypt. This reservoir is characterised by lateral and vertical variations in facies type, reservoir quality, connectivity and low gas recovery which in turn affect the efficiency of further exploitation in the Karam field. Herein, a 3D static reservoir model was conducted using multidisciplinary datasets to provide a comprehensive understanding of reservoir characteristics helping to optimise the strategies of hydrocarbon field development. The conducted well correlation reveals potentially multiple gas accumulations separated by a very low net-to-gross sequence. Two types of reservoir quality were interpreted: good-quality active distributary channels and poor tidal flat deposits. The different types of genetic facies have different property distribution and connectivity behaviours. Active distributary channels have higher connectivity than the tidally influenced channels and the tidal flat sands. The estimated initial gas in-place demonstrated that half of the gas volume is attributed to poor-quality sands which show very low productivity. This work procedure will lead to a more precise prediction of reservoir performance, and select the optimum subsurface development plan, including the location and number of infills required to increase the ultimate gas recovery.","PeriodicalId":35692,"journal":{"name":"First Break","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135515766","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Increasing Appeal of Single-Element Pneumatic Point Sources 单元件气动点源的吸引力日益增加

First Break Pub Date : 2023-11-01 DOI: 10.3997/1365-2397.fb2023096

Marc Rocke, Carsten Udengaard, David Brookes, Curt Schneider

引用次数: 0

Advanced 3D Seismic Crossover Technologies Between Hydrocarbon Exploration, CCS Development, and Offshore Wind 油气勘探、CCS开发和海上风电之间的先进三维地震交叉技术

First Break Pub Date : 2023-11-01 DOI: 10.3997/1365-2397.fb2023090

Martin Widmaier, Carine Roalkvam, Okwudili Orji

引用次数: 0

Interpretation of 3D UHRS to Emphasise Quaternary Glacial Structures in the Ten Noorden van de Waddeneilanden Wind Farm Zone 利用三维UHRS解释Ten Noorden van de Waddeneilanden风电场区第四纪冰川结构

First Break Pub Date : 2023-10-01 DOI: 10.3997/1365-2397.fb2023083

Benjamin Durot