Second EAGE Conference on Pre-Salt Reservoir最新文献

K-Image - Permeability Characterization Integrating Matrix and Non-Matrix Pore Scales on Pre-Salt Reservoirs 盐下储层基质与非基质孔隙尺度的k -图像渗透率表征

Second EAGE Conference on Pre-Salt Reservoir Pub Date : 2021-09-08 DOI: 10.3997/2214-4609.202183031

C. M. D. Jesus, A. Compan, R. M. Araüjo, R. Surmas

{"title":"K-Image - Permeability Characterization Integrating Matrix and Non-Matrix Pore Scales on Pre-Salt Reservoirs","authors":"C. M. D. Jesus, A. Compan, R. M. Araüjo, R. Surmas","doi":"10.3997/2214-4609.202183031","DOIUrl":"https://doi.org/10.3997/2214-4609.202183031","url":null,"abstract":"Summary Several oil fields on the pre-salt have high heterogeneity in terms of pore types and scale, with the occurrence of non-matrix pore systems displaying important impact on productivity. Not surprisingly, discrepancies were verified between matrix permeability in 1D petrophysical models and the permeability scale estimated by DST measurements, which are generally understood as related to the presence of dissolution structures formed by karstification processes. Intending to represent the non-matrix permeability scale in our petrophysical models, Petrobras’s researchers began the development of techniques for permeability estimation, where it is possible to separate the matrix pore systems from the non-matrix and to assign different parameters to each distinct medium. This technique is known as K-image, where attributes extracted from image logs are combined with porosity logs in algorithms that calibrate the models, both with the matrix absolute permeability and DST estimated permeability, and then they are used in a permeability equation which has terms representing matrix with different flow capacities and a term that represents the extra-matrix pore systems. The application of this technique brought a significant gain in the ability to characterize permeability of non-matrix pore systems on pre-salt oil fields where the dynamic impact of these systems has been observed.","PeriodicalId":21695,"journal":{"name":"Second EAGE Conference on Pre-Salt Reservoir","volume":"44 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87531221","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

Bayesian Seismic Inversion for the Joint Estimation of Facies and Elastic Properties of the Lula Field 鲁拉油田相与弹性性质联合估计的贝叶斯地震反演

Second EAGE Conference on Pre-Salt Reservoir Pub Date : 2021-09-08 DOI: 10.3997/2214-4609.202183040

L. D. Figueiredo, B. B. Rodrigues, D. Grana, M. Roisenberg

引用次数: 0

Impact of Fault Displacement on Syn-Extensional Carbonate Deposition and Excess Permeability 断裂位移对同张性碳酸盐岩沉积及超渗透率的影响

Second EAGE Conference on Pre-Salt Reservoir Pub Date : 2021-09-08 DOI: 10.3997/2214-4609.202183039

C. Hughes, B. Darby

{"title":"Impact of Fault Displacement on Syn-Extensional Carbonate Deposition and Excess Permeability","authors":"C. Hughes, B. Darby","doi":"10.3997/2214-4609.202183039","DOIUrl":"https://doi.org/10.3997/2214-4609.202183039","url":null,"abstract":"Summary Evaluating footwall carbonate geometries in concert with fault displacement and the flexural isostatic response to fault displacement, i.e. footwall uplift, can help improve prediction of reservoir presence, facies distribution, and non-matrix permeability. Large-scale faulting can produce footwall highs that are exposed and eroded as fault displacement increases, forming beveled exposure surfaces that may promote development of non-matrix permeability by processes such as meteoric karsting. Structural-stratigraphic analysis focusing on the relationship between faulting, carbonate deposition, and changes in lake level was conducted at a field in the Santos basin to aide in understanding recent and upcoming well results as well as development optimization of existing pre-salt assets. We applied concepts relating fault displacement and lake level to footwall carbonate geometries, fundamental structural mapping and analysis, and forward isostatic modelling to the field. Accommodation changes at the field scale correspond to changes in footwall uplift through time along strike of the field. Zones of high fault displacement are associated with beveled highs in the footwall, which represent exposure surfaces and thus may be prone to meteoric karsting. Fault displacement and carbonate geometry mapping helps to reduce uncertainty in possible non-matrix permeability by reducing uncertainty in lateral variability of these exposure surfaces.","PeriodicalId":21695,"journal":{"name":"Second EAGE Conference on Pre-Salt Reservoir","volume":"14 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76955002","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: 3

Forming Giant Salt Deposits in Ultra-Deep Brine Settings by Dynamic Inflow and Evaporation: The Aptian South Atlantic Example 通过动态流入和蒸发在超深盐水环境中形成巨型盐矿床:以阿普tian南大西洋为例

Second EAGE Conference on Pre-Salt Reservoir Pub Date : 2021-09-08 DOI: 10.3997/2214-4609.202183003

A. Konstantinou, D. Gombosi, E. Kneller, G. Karner

引用次数: 0

Convolutional Neural Network for Prediction of Igneous Seismic Facies in the Santos Basin Pre-Salt 卷积神经网络在桑托斯盆地盐下火成岩地震相预测中的应用

Second EAGE Conference on Pre-Salt Reservoir Pub Date : 2021-09-08 DOI: 10.3997/2214-4609.202183008

F. Vizeu, E.R.D. Oliveira Neto, A. Freire, W. Lupinacci

引用次数: 1

The Bacalhau Field: New Insights into Lacustrine Carbonate Platform Development, Santos Basin, Brazil Bacalhau油田:对巴西Santos盆地湖相碳酸盐岩台地开发的新认识

Second EAGE Conference on Pre-Salt Reservoir Pub Date : 2021-09-08 DOI: 10.3997/2214-4609.202183037

D. Hunt

引用次数: 1

Tectono-Stratigraphic Evolution of the Brazilian South-Eastern Margin - The ATLANTIS Project and its Impact on Pre-Salt Research 巴西东南边缘构造地层演化——ATLANTIS项目及其对盐下研究的影响

Second EAGE Conference on Pre-Salt Reservoir Pub Date : 2021-09-08 DOI: 10.3997/2214-4609.202183027

M. Arnemann, V. Abreu, S. Rostirolla, E. Barboza

{"title":"Tectono-Stratigraphic Evolution of the Brazilian South-Eastern Margin - The ATLANTIS Project and its Impact on Pre-Salt Research","authors":"M. Arnemann, V. Abreu, S. Rostirolla, E. Barboza","doi":"10.3997/2214-4609.202183027","DOIUrl":"https://doi.org/10.3997/2214-4609.202183027","url":null,"abstract":"Summary The discovery of giant hydrocarbon accumulations in the pre-salt play, offshore south-eastern Brazil led to large-scale data acquisition, with dense 2D seismic grid and broad 3D seismic data coverage, with more data being acquired currently. More than 100 exploratory wells had penetrated the pre-salt, with most of the acquired data already in the public domain, including logs, cores, and well reports. This rich geologic dataset is being interpreted in the ATLANTIS Project to build a regional and integrated paleogeographic reconstruction of the Brazilian Southeastern Margin. The goal is to de-risk play-elements presence and quality in the pre-salt section, as well as to build predictive models for CO2 distribution in the region. This project also has the potential to evaluate the remaining potential for economic hydrocarbon accumulations in this important play. Preliminary results indicate that the main, regional controls on accommodation creation and the petroleum systems elements distribution from continental rifting to early drift phases in the region are: inherited Neoproterozoic structural lineaments and Mesozoic continental weaknesses zones, subaerial volcanism pre- and post-continental breakup controlling the development of early seaways and sub-basins, and transcurrent faults zones and consequent transtension and transpression.","PeriodicalId":21695,"journal":{"name":"Second EAGE Conference on Pre-Salt Reservoir","volume":"107 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90696370","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: 1

Automated Travel-Time Picking for Pre-Salt Reflection Events for OBN Data OBN数据盐下反射事件的自动旅行时间选择

Second EAGE Conference on Pre-Salt Reservoir Pub Date : 2021-09-08 DOI: 10.3997/2214-4609.202183017

N. Zuniga, V. Priimenko

引用次数: 0

Bacalhau Project: An Innovative Development Strategy for a Unique Field Bacalhau项目:一个独特领域的创新发展战略

Second EAGE Conference on Pre-Salt Reservoir Pub Date : 2021-09-08 DOI: 10.3997/2214-4609.202183028

L. Hansen, I. Troth, K. Glitz, E. Nogueira, K. V. Juk, E. Terán, P. R. B. D. Santos, V. Haugse, S. Erlandsen, Ézio M. Silva, E. Schwedersky, Gledsângela Ribeiro Carneiro, Greice Carvalho de Matos, T. D. Oliveira, C. Lima, Dina Regis Recaldes Rodrigues Argeropulos Aquino, C. D. Santos

引用次数: 2

Characterization of Barra Velha Reservoir-Non Reservoir Interfaces in a Pre-Salt Field in Santos Basin-Brazil Using Seismic AVO Modelling. 利用地震AVO模拟巴西Santos盆地盐下油田Barra Velha储层-非储层界面

Second EAGE Conference on Pre-Salt Reservoir Pub Date : 2021-09-08 DOI: 10.3997/2214-4609.202183041

F. Neves, João Marcos Domingues Dias, C. Ribeiro, P. Coelho, G. Raitz, H. Santos, J. Santos, D. Silva, M. Arena, J. Favoreto, L. Borghi

{"title":"Characterization of Barra Velha Reservoir-Non Reservoir Interfaces in a Pre-Salt Field in Santos Basin-Brazil Using Seismic AVO Modelling.","authors":"F. Neves, João Marcos Domingues Dias, C. Ribeiro, P. Coelho, G. Raitz, H. Santos, J. Santos, D. Silva, M. Arena, J. Favoreto, L. Borghi","doi":"10.3997/2214-4609.202183041","DOIUrl":"https://doi.org/10.3997/2214-4609.202183041","url":null,"abstract":"Summary The Lower Cretaceous Barra Velha (BVE) unit is the main reservoir in our area of study, which consists of heterogeneous carbonates beneath a thick salt layer. Pre-Salt wells have shown that underneath the BVE reservoir, there could be several non-reservoir rocks (e.g., microporous carbonates, shales, volcanics) embedded in different formations that are hard to predict pre-drill. This poses a challenge, as BVE reservoir thickness and quality could be affected by a variety of underlying geological formations with distinct lithologies and facies. The Aptian BVE Formation consists of several hundred meters thick dolomitized limestones and shales. The mud-poor section is the main reservoir interval. The Itapema Fm. consists of thick (hundreds of meters) limestones (including coquinas) and organic rich shales. The Barremian Picarras Fm. is mostly made up of clastic and carbonate rocks, that contain conglomerates, with clasts of basalt and quartz and talc-stevensite shales. Finally, the lowermost and oldest Camboriu Fm. consists mainly of basalts. Despite efforts to understand the main factors driving the BVE reservoir elastic and seismic behavior for 3D and 4D interpretations and reservoir characterization, we still miss advanced geophysical analysis of the interfaces between different geological units that are important for quantitative seismic interpretation.","PeriodicalId":21695,"journal":{"name":"Second EAGE Conference on Pre-Salt Reservoir","volume":"62 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87399812","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