Sixth EAGE Shale Workshop最新文献

Experimental Assessment of the Impact of Partial Saturation On the Mechanical Properties of Gas Shales 部分饱和度对页岩力学性质影响的实验评价

Sixth EAGE Shale Workshop Pub Date : 2019-04-28 DOI: 10.3997/2214-4609.201900289

A. Minardi, A. Ferrari, R. Ewy, L. Laloui

{"title":"Experimental Assessment of the Impact of Partial Saturation On the Mechanical Properties of Gas Shales","authors":"A. Minardi, A. Ferrari, R. Ewy, L. Laloui","doi":"10.3997/2214-4609.201900289","DOIUrl":"https://doi.org/10.3997/2214-4609.201900289","url":null,"abstract":"Summary The impact of partial water saturation on the mechanical behaviour of clays and claystones has been widely proved. This work aims at demonstrating that also for gas shales partial water saturation has a significant influence on their stiffness and strength properties although they have different characteristics compared to other clayey materials. Samples extracted from two different unconventional shale gas reservoirs are tested. An experimental methodology and a testing device are developed to perform uniaxial compressive tests and unloading-reloading cycles at different total suction values. The control of total suction with the vapour equilibrium technique is used to equalize specimens to different water saturation conditions and assess the consequent impact on mechanical properties. The obtained outcomes clearly demonstrate that partial water saturation cannot be neglected to characterize the mechanical properties of gas shales. A reduction of uniaxial compressive strength of 22 % is observed in the total suction range between 150 and 10 MPa. Regarding the elastic stiffness, a decrease up to 50% is exhibited when the material is wetted from 150 MPa to 0 MPa of total suction.","PeriodicalId":210694,"journal":{"name":"Sixth EAGE Shale Workshop","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127170087","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

Polygonal Faults and Seal Integrity 多边形断层与密封完整性

Sixth EAGE Shale Workshop Pub Date : 2019-04-28 DOI: 10.3997/2214-4609.201900318

J. Cartwright

引用次数: 1

Early & Late Diagenetic Mineral Development within the Upper Jurassic Haynesville-Bossier Shale, USA 美国上侏罗统Haynesville-Bossier页岩早、晚成岩矿物发育

Sixth EAGE Shale Workshop Pub Date : 2019-04-28 DOI: 10.3997/2214-4609.201900286

P. Dowey, K. Taylor

引用次数: 0

Ekofisk Time-Lapse Seismic Monitoring of Injection in Shale 页岩注入Ekofisk时移地震监测

Sixth EAGE Shale Workshop Pub Date : 2019-04-28 DOI: 10.3997/2214-4609.201900295

S. Narongsirikul

引用次数: 2

Fluid Flow Pathways in Shales: Damage Induced Permeability Change 页岩流体流动路径:损伤引起的渗透率变化

Sixth EAGE Shale Workshop Pub Date : 2019-04-28 DOI: 10.3997/2214-4609.201900307

M. Houben, J. V. Eeden, S. Hangx

引用次数: 0

Impact of Mineralogical Composition on Geotechnical Properties of Opalinus Clay 矿物组成对蛋白石粘土岩土性能的影响

Sixth EAGE Shale Workshop Pub Date : 2019-04-28 DOI: 10.3997/2214-4609.201900278

Eleonora Crisci, A. Ferrari, S. Giger, L. Laloui

引用次数: 0

Detailed Characterization of Namurian Shale in the Campine and Wallonian Basin, Belgium 比利时坎平-瓦隆盆地纳穆里亚页岩详细表征

Sixth EAGE Shale Workshop Pub Date : 2019-04-28 DOI: 10.3997/2214-4609.201900273

W. Wei, R. Swennen

{"title":"Detailed Characterization of Namurian Shale in the Campine and Wallonian Basin, Belgium","authors":"W. Wei, R. Swennen","doi":"10.3997/2214-4609.201900273","DOIUrl":"https://doi.org/10.3997/2214-4609.201900273","url":null,"abstract":"The Namurian Chokier Formation of late Mississippian has been studied in two shallow boreholes in southern Belgium which addresses to its shale gas potential. To help with the global assessment of this shale gas succession, the research focuses on the detailed characterization of the Chokier mudstones in Belgium which distribute in the Campine Basin and Wallonian Basin. After the description of cores and quarries from 6 sampling locations, the samples have been analysed with X-ray diffraction (XRD), microscopy, cold cathodoluminescence for petrographical and mineralogical study. It reveals that Chokier Formation is composed of successive mudstones in the Campine Basin while mudstones with more interbedded sandstones in the Wallonian Basin. The mudstones consist of the mixture of clay minerals (including kaolinite, illite, chlorite), quartz, feldspars, mica (including muscovite, biotite, phlogopite), carbonates (including calcite, dolomite, siderite, ankerite), sulfides (mainly pyrite), organic matter and amorphous material. In consideration of variable sedimentary structures and relative proportions of clay minerals, carbonates, quartz, feldspar and mica, 3 lithologies and 8 lithofacies have been classified in the Chokier mudstones. The deposition setting of Chokier Formation changes from marine, prodelta to delta front from the Campine Basin in northern Belgium to the Wallonian Basin in southern Belgium.","PeriodicalId":210694,"journal":{"name":"Sixth EAGE Shale Workshop","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115539010","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

Dominance of Wind Blown Minerals in Black Shales, Connecting Continental Climate, Fe Fertilization and Mineral Ballasting 黑色页岩中风吹矿物的优势，联系大陆性气候、铁施肥和矿物压舱

Sixth EAGE Shale Workshop Pub Date : 2019-04-28 DOI: 10.3997/2214-4609.201900282

M. Kennedy, L. Mayer

{"title":"Dominance of Wind Blown Minerals in Black Shales, Connecting Continental Climate, Fe Fertilization and Mineral Ballasting","authors":"M. Kennedy, L. Mayer","doi":"10.3997/2214-4609.201900282","DOIUrl":"https://doi.org/10.3997/2214-4609.201900282","url":null,"abstract":"Summary The origin of organic carbon-rich (black) shales is commonly attributed to changes in oceanographic conditions such as anoxia or heightened biological productivity. Here we use sub-micron in situ X-Ray mineral mapping at the grain scale to identify sedimentological and diagenetic processes controlling deposition that are not evident in traditional bulk approaches. Lack of sorting, abundance of angular feldspar and other less stable mineral phases, and absence of evidence of winnowing all imply pelagic deposition of detrital minerals of aeolian origin. Using modern values of iron content in dust, the fraction of bioavailable iron, and the range of Fe:C ratios needed by phytoplankton, we calculate that the amount of organic matter associated with dust mineral particles could have been stimulated by the bioavailable iron in that dust. The anoxic bottom waters would efficiently preserve this high ratio of organic matter to minerals. We propose that aeolian deposition is a fundamental and overlooked component of black shale formation, accounting for minerals that are associated with nutrient influx and assist with ballasting of resultant blooms, and stimulate anoxia in the centre of basins. Such processes would be tightly coupled with changes in continental climate and provenance.","PeriodicalId":210694,"journal":{"name":"Sixth EAGE Shale Workshop","volume":"256 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124300912","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

Detailed profiling organic carbon content of oil shales with thermal core logging technique 利用热岩心测井技术对油页岩有机碳含量进行详细剖面

Sixth EAGE Shale Workshop Pub Date : 2019-04-28 DOI: 10.3997/2214-4609.201900305

E. Popov, Y. Popov, R. Romushkevich, M. Spasennykh, E. Kozlova

{"title":"Detailed profiling organic carbon content of oil shales with thermal core logging technique","authors":"E. Popov, Y. Popov, R. Romushkevich, M. Spasennykh, E. Kozlova","doi":"10.3997/2214-4609.201900305","DOIUrl":"https://doi.org/10.3997/2214-4609.201900305","url":null,"abstract":"Summary The development of a thermal core logging technique as a field-scale geophysical technique presented new possibilities for multiphysical testing of shales, e.g. preparation of representative databases of the thermal properties for basin modeling and hydrodynamic modeling for thermal methods of EOR, and practical application of correlations between shale thermal conductivity and total organic carbon. The technique of determination of oil shale total organic carbon from the thermal core logging data was developed that provides detailed continuous high-resolution profiling total organic carbon of oil shales along wells. The technique was studied and tested on more than 11 500 oil shale samples from Bazhenov and Domanic Formations when more than 1250 shale samples were also tested for total organic carbon content with Rock-Eval pyrolysis. The data on shale total organic carbon obtained from the measurements with pyrolysis allow to calibrate and control the results of total organic carbon determinations from the thermal core logging. Continuous profiling total organic carbon from continuous thermal core logging provides reasonable selection of shale samples for future investigations and are basis for basin modeling and calculation of reserves","PeriodicalId":210694,"journal":{"name":"Sixth EAGE Shale Workshop","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116986235","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

Chemo-Mechanical Coupling in Fine-Grained Soils and Sedimentary Rocks 细粒土与沉积岩的化学-力学耦合

Sixth EAGE Shale Workshop Pub Date : 2019-04-28 DOI: 10.3997/2214-4609.201900293

I. Bourg, F. Carrillo, X. Shen, T. Underwood

引用次数: 0