First EAGE/IGA/DGMK Joint Workshop on Deep Geothermal Energy最新文献

From Numerical Conceptual Models To Phenomenological Modelling and Production Optimization for Better Assessing Geothermal Reservoir Potential 从数值概念模型到现象学建模和产量优化，更好地评价地热储层潜力

First EAGE/IGA/DGMK Joint Workshop on Deep Geothermal Energy Pub Date : 2018-11-08 DOI: 10.3997/2214-4609.201802941

M. Garcia, J. Mathieu, D. Siffert, Geotref Team

{"title":"From Numerical Conceptual Models To Phenomenological Modelling and Production Optimization for Better Assessing Geothermal Reservoir Potential","authors":"M. Garcia, J. Mathieu, D. Siffert, Geotref Team","doi":"10.3997/2214-4609.201802941","DOIUrl":"https://doi.org/10.3997/2214-4609.201802941","url":null,"abstract":"As part of the GEOTREF research project, a cost-effective approach, relying on innovative software tools, is proposed to carry out prefeasibility studies prior drilling based on numerical conceptual models associated with phenomenological modelling and well layout optimization. The numerical conceptual models are intended to be 3D structural, geological and geothermal numerical models that integrate at best all understanding, interpretations and data about the geothermal reservoir. They are defined at a scale where relevant boundary conditions can be specified, including recharge, basal heat flux and heat sources. Scenarios are used to formalize the uncertainty about numerical conceptual models, whether it is related to data values or interpretations, model assumptions or simplifications, or geothermal reservoir model components. Each scenario determines a numerical conceptual model as a possible representation of the actual geothermal reservoir. Phenomenological modelling is carried out by numerically simulating the geothermal systems corresponding to various scenarios. Results provide information to determine and understand the structural, geological and geothermal conditions that should be met to explain the presence of a geothermal resource. The geothermal potential of hot scenarios is then assessed by seeking optimal production and injection well locations that maximize the production of electrical power from the available geothermal energy.","PeriodicalId":207171,"journal":{"name":"First EAGE/IGA/DGMK Joint Workshop on Deep Geothermal Energy","volume":"107 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130308258","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

Soultz and Rittershoffen Geothermal Plants in Upper Rhine Graben: Two Years of Operation 上莱茵地堑的索尔茨和里特肖芬地热发电厂:两年的运行

First EAGE/IGA/DGMK Joint Workshop on Deep Geothermal Energy Pub Date : 2018-11-08 DOI: 10.3997/2214-4609.201802943

G. Ravier, O. Seibel, J. Mouchot

引用次数: 0

Seismic Monitoring at Different Stages of Deep Geothermal Sites in the Upper Rhine Graben 上莱茵地堑深层地热点不同阶段的地震监测

First EAGE/IGA/DGMK Joint Workshop on Deep Geothermal Energy Pub Date : 2018-11-08 DOI: 10.3997/2214-4609.201802938

V. Maurer, A. Richard, N. Cuenot

引用次数: 0

Advances On Electro-Magnetic Imaging for De-Risking Enhanced Geothermal Systems Prospects 地热系统电磁成像技术研究进展

First EAGE/IGA/DGMK Joint Workshop on Deep Geothermal Energy Pub Date : 2018-11-08 DOI: 10.3997/2214-4609.201802935

M. Darnet, C. Dezayes, J. Girard, J. Baltassat, F. Bretaudeau, T. Reuschlé, N. Coppo, J. Porté, Y. Lucas

引用次数: 0

Mud Hammer Drilling in Hard Formations: Bit Design Improvement Leads To Increased Rate of Penetration 硬地层泥浆锤钻井:钻头设计的改进提高了钻速

First EAGE/IGA/DGMK Joint Workshop on Deep Geothermal Energy Pub Date : 2018-11-08 DOI: 10.3997/2214-4609.201802934

L. Gerbaud, R. Souchal, M. Tarek

{"title":"Mud Hammer Drilling in Hard Formations: Bit Design Improvement Leads To Increased Rate of Penetration","authors":"L. Gerbaud, R. Souchal, M. Tarek","doi":"10.3997/2214-4609.201802934","DOIUrl":"https://doi.org/10.3997/2214-4609.201802934","url":null,"abstract":"Percussion drilling system, combining a mud hammer with drill bits, has been developed to increase drilling performances in hard formations. This system is based on a high-power down-the-hole hammer (Power output of 30 kW), capable of delivering high-energy impacts at high frequency (35 Hz) used with mud pressure as the power source. The drill bit is a key performance element because it is the one that is in contact with the rock and destroys it. It must be designed to optimize the cutting process. Numerous elementary tests of the insert-rock contact and the development of a model of the performances have been performed. It makes it possible to show the importance of the bit design parameters and the need to adapt the design to the drilling conditions. A new generation of bits optimized for performance has thus been developed and manufactured. The 6” mud hammer and the new drill bit have been then tested on a full scale drilling test bench. The performances comparison with roller cone bit showed an improvement of 100 to 300% of Rate of Penetration (ROP). The set was ultimately used in field drilling operations and validated the large improvement in ROP of 300%.","PeriodicalId":207171,"journal":{"name":"First EAGE/IGA/DGMK Joint Workshop on Deep Geothermal Energy","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123985848","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

An innovative Geothermal Well Architecture and Reservoir Evaluation Concept - the Cachan Subhorizontal Doublet 一种创新的地热井结构和储层评价概念——卡赞地下双峰

First EAGE/IGA/DGMK Joint Workshop on Deep Geothermal Energy Pub Date : 2018-11-08 DOI: 10.3997/2214-4609.201802929

P. Ungemach, M. Antics, M. Davaux

引用次数: 1

Geothermal Gradients on Svalbard, Arctic Norway 挪威北极斯瓦尔巴群岛的地温梯度

First EAGE/IGA/DGMK Joint Workshop on Deep Geothermal Energy Pub Date : 2018-11-08 DOI: 10.3997/2214-4609.201802945

P. Betlem, K. Midttømme, M. Jochmann, K. Senger, S. Olaussen

引用次数: 6

Wireline NMR Combined With Azimuthal Logs Define Flow Capacity and Homogeneity within High Angle Geothermal Well 有线核磁共振结合方位角测井确定大角度地热井的流量和均匀性

First EAGE/IGA/DGMK Joint Workshop on Deep Geothermal Energy Pub Date : 2018-11-08 DOI: 10.3997/2214-4609.201802939

C. Cavalleri, E. Wielemaker

{"title":"Wireline NMR Combined With Azimuthal Logs Define Flow Capacity and Homogeneity within High Angle Geothermal Well","authors":"C. Cavalleri, E. Wielemaker","doi":"10.3997/2214-4609.201802939","DOIUrl":"https://doi.org/10.3997/2214-4609.201802939","url":null,"abstract":"Geological, geophysical, geomechanical and petrophysical data gathering and analysis are important to manage Geothermal resources optimally. We highlight a case where a unique log combination was run to assess lateral homogeneity and flow potential in the target aquifer. A highly deviated well was drilled through a thin bed structure to characterize producing limestone layers within a carbonate sequence. The evaluation program included LWD nuclear data recorded while geosteering and Wireline NMR and advanced dipole sonic which were successfully tractor conveyed to verify the homogeneity of thin and highly porous and mobile diatomite and their performance. This was the first application of NMR logs to establish porosity and permeability in a Geothermal project. The NMR log results provided accurate information that complemented the sonic and density images adding critical knowledge of the mixed layers. Those logs integration helped to define the heterogeneity of target reservoirs, quantify critical rock parameters, and ability to transport the fluids. Azimuthal sonic data was explored adding to the overall understanding of different measurements and obtain a more detailed structural model. This also allowed to understand whether permeability variations were truly related to layer variations or a result of the measurements sensing properties of an adjacent layer.","PeriodicalId":207171,"journal":{"name":"First EAGE/IGA/DGMK Joint Workshop on Deep Geothermal Energy","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125399380","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

Horizontal Stress Orientation and Fractures from Image Logs in Geothermal Boreholes in Fractured Carbonates in Switzerland 瑞士碳酸盐岩裂缝性地热钻孔成像测井的水平应力方向与裂缝

First EAGE/IGA/DGMK Joint Workshop on Deep Geothermal Energy Pub Date : 2018-11-08 DOI: 10.3997/2214-4609.201802946

B. Roters, M. Gysi

{"title":"Horizontal Stress Orientation and Fractures from Image Logs in Geothermal Boreholes in Fractured Carbonates in Switzerland","authors":"B. Roters, M. Gysi","doi":"10.3997/2214-4609.201802946","DOIUrl":"https://doi.org/10.3997/2214-4609.201802946","url":null,"abstract":"The assessment of the stress orientations is the first step for geomechanical modelling and for the understanding of the relationships between fractures, stress and fluid flow. Furthermore, an understanding of the stress regime and stress field orientation is crucial for optimizing planning of boreholes with a view to minimizing the risks. In the present publication, the results of a borehole image interpretation performed for the National Cooperative for the Disposal of Radioactive Waste (NAGRA) from a geothermal borehole in Northern Switzerland are presented. The borehole was drilled in Upper Jurassic carbonates that are partly intensively fractured and also contain vugs. It is shown that analysis and interpretation of borehole images contribute to a better understanding of reservoirs and that these data are important for efficient drilling and effective development of adjacent boreholes. The interpretation adds detail to the regional structural and present-day stress picture of the Upper Jurassic strata in the area. The main stress orientation matches results from nearby measurements. The fractures are potentially governed by local or regional structural elements, i.e. faults or folds.","PeriodicalId":207171,"journal":{"name":"First EAGE/IGA/DGMK Joint Workshop on Deep Geothermal Energy","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125268391","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

3D Seismic High Productivity Application for Geothermal Development - Case Study in Suburban Environment (Munich Germany) 三维地震在地热开发中的高效应用——郊区环境案例研究(德国慕尼黑)

First EAGE/IGA/DGMK Joint Workshop on Deep Geothermal Energy Pub Date : 2018-11-08 DOI: 10.3997/2214-4609.201802932

E. Gillot, J. Cotton, C. Gómez

引用次数: 0