Fifth CO2 Geological Storage Workshop最新文献_第4页

High Resolution Modelling And Steady-State Upscaling Of Large Scale Gravity Currents In Heterogeneous Sandstone Reservoirs 非均质砂岩储层大尺度重力流高分辨率模拟与稳态升级

Fifth CO2 Geological Storage Workshop Pub Date : 2018-11-21 DOI: 10.3997/2214-4609.201802949

S. Jackson, I. Mayachita, S. Krevor

{"title":"High Resolution Modelling And Steady-State Upscaling Of Large Scale Gravity Currents In Heterogeneous Sandstone Reservoirs","authors":"S. Jackson, I. Mayachita, S. Krevor","doi":"10.3997/2214-4609.201802949","DOIUrl":"https://doi.org/10.3997/2214-4609.201802949","url":null,"abstract":"We investigate the impact of small-scale heterogeneities (<10m) and gravity on large scale O(100m) lateral CO2 plume migration at varying capillary number, Nc and gravity number, Ngv. For isotopically correlated heterogeneities, plume migration was slowed signicantly at low Nc and high Ngv. For anisotropic cases akin to sedimentary geological structures, the plume speed was correspondingly enhanced, with breakthrough times reduced by up to 20% at large correlation lengths. Using relative measures, the capillary pressure was found to be the major control on plume migration as opposed to permeability, at low Nc. Using single, homogenized upscaled functions, we were able to capture the effects of small scale heterogeneities at low or high Nc and moderate Ngv. However, the relative enhancement of the impact of heterogeneities at high Ngv (and low Nc) could not be captured using single homogeneous functions for the entire domain. Without including enhanced gravity effects in the upscaling procedure, which generate anisotropic upscaled functions, the full effects of small-scale heterogeneities in gravity segregated flow could be signicantly underestimated in large scale models, leading to inaccurate plume migration estimates.","PeriodicalId":254996,"journal":{"name":"Fifth CO2 Geological Storage Workshop","volume":"118 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114038389","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: 2

Using Well Operation Noise To Estimate Shear Modulus Changes From Measured Tube Waves – A Feasibility Study 利用井作业噪声估计测量管波的剪切模量变化的可行性研究

Fifth CO2 Geological Storage Workshop Pub Date : 2018-11-21 DOI: 10.3997/2214-4609.201802992

D. Wehner, F. Borges, M. Landrø

{"title":"Using Well Operation Noise To Estimate Shear Modulus Changes From Measured Tube Waves – A Feasibility Study","authors":"D. Wehner, F. Borges, M. Landrø","doi":"10.3997/2214-4609.201802992","DOIUrl":"https://doi.org/10.3997/2214-4609.201802992","url":null,"abstract":"Geophysical monitoring techniques are commonly used to image the subsurface and potential changes. These monitoring techniques are important for CO2 storage projects to ensure a safe operation. A detailed image of the subsurface can be achieved from borehole seismic where mostly transmitted and reflected waves are investigated. However, these measurements are time consuming and costly as receivers and sources need to be moved within the well during the acquisition. We investigate the monitoring potential of tube waves, which propagate along the interface between the well and geological formation. An experiment is conducted where the signal from a rotating metal pipe in a borehole is recorded in a nearby observation well. The tube wave velocity can be measured with a high precision, around ± 1.2 m/s, during the experiment, which is an important measure to evaluate the potential of the method. Therefore, it might be possible to use noise sources like CO2 injection phases to monitor changes of the formation surrounding the well. This would reduce the time and cost needed for borehole seismic as only receivers at a constant position are required. Further field test are needed to investigate the feasibility at larger scales and for real injection cases.","PeriodicalId":254996,"journal":{"name":"Fifth CO2 Geological Storage Workshop","volume":"170 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115114621","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

Simulated Fluid-Rock Interactions During Storage Of Temporally Varying Impure CO2 Streams 在储存时间变化的不纯二氧化碳流期间模拟流体-岩石相互作用

Fifth CO2 Geological Storage Workshop Pub Date : 2018-11-21 DOI: 10.3997/2214-4609.201802988

S. Fischer, L. Wolf, L. Fuhrmann, H. Gahre, H. Rütters

{"title":"Simulated Fluid-Rock Interactions During Storage Of Temporally Varying Impure CO2 Streams","authors":"S. Fischer, L. Wolf, L. Fuhrmann, H. Gahre, H. Rütters","doi":"10.3997/2214-4609.201802988","DOIUrl":"https://doi.org/10.3997/2214-4609.201802988","url":null,"abstract":"Impurities in CO2 streams influence the chemical reactivity in and mineral alterations of CO2 storage formations. Fluid-rock interactions have been investigated by means of reactive transport simulations using TOUGHREACT V3.0-OMG. A novel method has been established through which co-injection of SO2, NO2, O2 and H2 with temporally varying concentrations can be implemented in reactive transport model scenarios. The paper presents (i) model testing and validation against simulation results obtained by Xu et al. (2007), and (ii) results acquired from 1D-radial multiphase reactive transport simulations investigating two generic Bunter Sandstone reservoir formations. Results gained applying the novel hybrid approach show that modelling-based inaccuracies have largely been eliminated and inconsistencies are minimized. For the investigated generic Bunter Sandstone reservoir formations, two major geochemical processes are apparent. While the acidifying impurities SO2 and NO2 trigger carbonate dissolution coupled to anhydrite precipitation, presence of O2 leads to dissolution of iron-rich chlorite and subsequent goethite precipitation. Absolute changes of porosity for the two generic Bunter Sandstone formations are below 1 %. The total quantitative impact of SO2, NO2, O2 and H2 on mineral reactions is rather limited and their impacts on the petrophysical properties of the two investigated generic Bunter Sandstone formations are geotechnically negligible.","PeriodicalId":254996,"journal":{"name":"Fifth CO2 Geological Storage Workshop","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125288816","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: 2

Ensuring Integrity Of CO2 Storage: An Overview Of Ongoing Experimental Activity 确保二氧化碳储存的完整性:正在进行的实验活动概述

Fifth CO2 Geological Storage Workshop Pub Date : 2018-11-21 DOI: 10.3997/2214-4609.201802983

N. Opedal

引用次数: 1

Identifying Hidden Risk Elements For CO2 Storage From Reprocessed Seismic Data 从再处理地震数据中识别二氧化碳储存的潜在风险因素

Fifth CO2 Geological Storage Workshop Pub Date : 2018-11-21 DOI: 10.3997/2214-4609.201802950

S. Carpentier, H. Abidin, P. Steeghs, H. Veldkamp

{"title":"Identifying Hidden Risk Elements For CO2 Storage From Reprocessed Seismic Data","authors":"S. Carpentier, H. Abidin, P. Steeghs, H. Veldkamp","doi":"10.3997/2214-4609.201802950","DOIUrl":"https://doi.org/10.3997/2214-4609.201802950","url":null,"abstract":"CO2 storage needs economic business cases through cost-effective exploration and production and needs license-to-operate through public support. Re-interpretation and reprocessing of vintage geophysical data is a means to achieve cost-effective exploration whereas de-risking and conformance control of storage operations is a means to obtain public support. Seismic exploration should identify risk elements for CO2 storage such as the risk of leakage, risk of pressure build-ups or drops, unexpected increase or decrease of storage capacity and spill points to name a few. These risks elements are often caused by hidden features such as a failing overburden seal, closed or open faults in either reservoir or seal and high- or low-permeability streaks in the reservoir. We have investigated a seismic reprocessing workflow for imaging and de-risking CO2 storage reservoirs and seals. The workflow includes statics, demultiple, velocity modeling, Prestack Time Migration, high resolution sparse spike deconvolution and Non Local Means filtering. Non Local Means filtering increases signal to noise ratio while preserving edges and the sparse spike deconvolution produces results with superior vertical and lateral resolution. This workflow manages at low cost to considerably de-risk the CO2 storage reservoirs and seals by identifying previously hidden faults, seal-reservoir contacts and thin reservoir streaks. © 2018 European Association of Geoscientists and Engineers, EAGE. All rights reserved.","PeriodicalId":254996,"journal":{"name":"Fifth CO2 Geological Storage Workshop","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127617268","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

Low Salinity Surfactant Nanofluids For Enhanced CO2 Storage Application At High Pressure And Temperature 低盐度表面活性剂纳米流体在高压和高温下增强CO2存储应用

Fifth CO2 Geological Storage Workshop Pub Date : 2018-11-21 DOI: 10.3997/2214-4609.201802975

N. K. Jha, M. Ali, M. Sarmadivaleh, S. Iglauer, A. Barifcani, M. Lebedev, J. Sangwai

引用次数: 32

Impact Of Time-Dependent Wettability Alteration On Dynamic Capillary Pressure 润湿性随时间变化对动态毛细压力的影响

Fifth CO2 Geological Storage Workshop Pub Date : 2018-11-21 DOI: 10.3997/2214-4609.201802952

A. Kassa, S. Gasda, K. Kumar, F. Radu

引用次数: 2

Petrophysical Analysis And Rock Physics Diagnostics Of Sognefjord Formation In The Smeaheia Area, Northern North Sea 北海北部Smeaheia地区Sognefjord地层岩石物理分析与岩石物理诊断

Fifth CO2 Geological Storage Workshop Pub Date : 2018-11-21 DOI: 10.3997/2214-4609.201802951

N. Mondol, M. Fawad, Joonsang Park

{"title":"Petrophysical Analysis And Rock Physics Diagnostics Of Sognefjord Formation In The Smeaheia Area, Northern North Sea","authors":"N. Mondol, M. Fawad, Joonsang Park","doi":"10.3997/2214-4609.201802951","DOIUrl":"https://doi.org/10.3997/2214-4609.201802951","url":null,"abstract":"This study focuses on petrophysical characterization and rock physics diagnostics of the reservoir sandstones of Sognefjord Formation in the Smeaheia area that penetrated by an exploration well 32/4-1. The large scale CO2 storage site “Smeaheia” is located east of the Troll field in the Stord Basin. The CO2 storage formation is identified within a fault block bounded by major faults to the north, east and west, where the faults system in the east is the Oygarden Fault Complex and the fault to the west and north is the Vette Fault. The storage formation has pinched out towards the south. Petrophysical analysis and rock physics diagnostics suggest that the reservoir sandstone is uncemented and has good to excellent reservoir quality. The reservoir sandstone can be subdivided into three zones where the lower unit (Zone-3) has an excellent reservoir quality (high porosity, high permeability and less clay content) compared to the upper unit (Zone-1 and Zone-2). The two carbonate stringers are present in Zone-3 interpreted as extremely high resistivity, high density, high Vp and low porosity/permeability units which could be flow barriers based on their lateral extent.","PeriodicalId":254996,"journal":{"name":"Fifth CO2 Geological Storage Workshop","volume":"834 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123290076","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: 2

Reactive Transport Modeling For CO2 Sequestration With A Dual Mesh Method 基于双网格法的CO2固存反应输运模型

Fifth CO2 Geological Storage Workshop Pub Date : 2018-11-21 DOI: 10.3997/2214-4609.201802955

D. Guérillot, J. Bruyelle

{"title":"Reactive Transport Modeling For CO2 Sequestration With A Dual Mesh Method","authors":"D. Guérillot, J. Bruyelle","doi":"10.3997/2214-4609.201802955","DOIUrl":"https://doi.org/10.3997/2214-4609.201802955","url":null,"abstract":"Acidic fluid injection in rock formations may generate geochemical reactions that can modify the mineral assemblage of the rock and disturb thermodynamic equilibria. Numerical difficulties of reactive transport simulation are that geochemical reactions are at the pore scale, may appear in short time period and are very sensitive to the mesh size and/or time step. The classical approach for reservoir engineers consists in upscaling the high resolution petrophysical values to assign to a low-resolution model. For reactive transport modelling, the upscaling step will impact not only the mass fraction of each species but also the mineral dissolution and/or precipitation processes that highly depend on mass fractions. This paper recalls the Compositional Dual Mesh Method, an original algorithm for a compositional flow modelling in porous media with rock-fluid interactions using two different space and time discretization: one mesh, as usual for the pressure equation and a much finer one for the chemical reactions. The interest of this scheme is that the calculation of the flow on the high-resolution grid is done solving a local problem on each coarse cell. Two examples of CO2 injection in carbonate reservoirs illustrate this algorithm.","PeriodicalId":254996,"journal":{"name":"Fifth CO2 Geological Storage Workshop","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122240808","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

Control Of Pressure Propagation In A Heterogeneous CO2 Storage Reservoir Using Water Production 利用采出水控制非均质CO2储层压力传播

Fifth CO2 Geological Storage Workshop Pub Date : 2018-11-21 DOI: 10.3997/2214-4609.201802968

H. Vosper, J. White, C. Gent

{"title":"Control Of Pressure Propagation In A Heterogeneous CO2 Storage Reservoir Using Water Production","authors":"H. Vosper, J. White, C. Gent","doi":"10.3997/2214-4609.201802968","DOIUrl":"https://doi.org/10.3997/2214-4609.201802968","url":null,"abstract":"Injection of CO2 into a reservoir increases the pressure above initial values, resulting in overpressure of a hydrostatically charged formation. Without careful monitoring and management, excessive pressure can lead to a number of serious complications for a CO2 storage operations. Using numerical simulations with four distinct porosity/permeability distributions to represent reservoirs with random and structured heterogeneity. We initially consider the impact heterogeneity has on pressure propagation from a CO2 injection well; in particular the effect of channels on the lateral extent of the region of increased pressure. Subsequently, we investigate how heterogeneity influences the efficacy of water production as a pressure management tool and the optimisation of well positioning. For a channelized reservoir the most effective production well, which reduces the area of high pressure by up to 88%. Even in a randomised reservoir with no structured distribution of porosity and permeability, water production can still reduce the high pressure footprint by 60-88%. The location of the production well relative to the heterogeneity has been shown have a significant effect. The most effective production well location may not always be close to the target, but should be connected to the target by relatively high permeability pathways.","PeriodicalId":254996,"journal":{"name":"Fifth CO2 Geological Storage Workshop","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116299648","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