Memoir 120: Mudstone Diagenesis: Research Perspectives for Shale Hydrocarbon Reservoirs, Seals, and Source Rocks最新文献

{"title":"A Comparison of Silica Diagenesis in the Devonian Woodford Shale (Central Basin Platform, West Texas) and Cretaceous Mowry Shale (Powder River Basin, Wyoming)","authors":"M. Longman, W. R. Drake, K. Milliken, T. Olson","doi":"10.1306/13672210m12163","DOIUrl":"https://doi.org/10.1306/13672210m12163","url":null,"abstract":"","PeriodicalId":349849,"journal":{"name":"Memoir 120: Mudstone Diagenesis: Research Perspectives for Shale Hydrocarbon Reservoirs, Seals, and Source Rocks","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130868959","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}

{"title":"Porosity-Deformation Relationships in Organic-Rich Shale","authors":"Han Jiang, H. Daigle, K. Milliken, N. Hayman","doi":"10.1306/13672215m1213825","DOIUrl":"https://doi.org/10.1306/13672215m1213825","url":null,"abstract":"","PeriodicalId":349849,"journal":{"name":"Memoir 120: Mudstone Diagenesis: Research Perspectives for Shale Hydrocarbon Reservoirs, Seals, and Source Rocks","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127385950","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}

{"title":"Diagenetic Evolution of Organic Matter Cements: Implications for Unconventional Shale Reservoir Quality Prediction","authors":"W. K. Camp","doi":"10.1306/13672218m1211681","DOIUrl":"https://doi.org/10.1306/13672218m1211681","url":null,"abstract":"The impact of diagenesis on conventional sandstone and carbonate hydrocarbon reservoirs has a long history of study that has advanced to a stage where several empirical models have been developed for quantitative reservoir quality prediction. Advanced models combine depositional parameters (texture and composition) and chemical kinetics within a burial history framework. Diagenetic studies of unconventional shale reservoirs is less well advanced than their conventional reservoir counterparts. However, interest in mudstone diagenesis and reservoir quality prediction has increased with the dramatic growth of shale hydrocarbon production in North America during the past 15 years. Cement is a solid material that binds together particles in a sedimentary rock. Cements are a product of diagenesis and are a main contributor to reservoir quality degradation in conventional sandstone and carbonate reservoirs because cements occupy former pore spaces, thereby reducing hydrocarbon storage volume and permeability. Understanding the origin and diagenetic evolution of cements is thus critical for reservoir quality prediction. Mineral cements precipitate from aqueous solutions in response to chemical reactions between fluids and minerals in the rock as metastable mineral forms convert to more stable forms in response to changing temperature and pressure changes during burial. Mineral cements may also form at grain-to-grain contacts due to pressure solution phenomena. The presence of organic matter in unconventional shale reservoirs adds to the complexity of diagenetic reactions resulting from changes during the conversion of organic matter to hydrocarbons with increasing thermal stress. Observations of scanning electron microscopic (SEM) images from drill core samples from a variety of producing shale plays in North America reveal the presence of both mineral and organic matter cements. AAPG Datapages/Search and Discovery Article #90283 © 2016 SEPM – AAPG Hedberg Research Conference, Mudstone Diagenesis, Santa Fe, New Mexico, October 16-19, 2016","PeriodicalId":349849,"journal":{"name":"Memoir 120: Mudstone Diagenesis: Research Perspectives for Shale Hydrocarbon Reservoirs, Seals, and Source Rocks","volume":"78 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116309447","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}

{"title":"Compositional and Diagenetic Controls on Brittleness in Organic Siliceous Mudrocks","authors":"C. Hall","doi":"10.1306/13672213m1213823","DOIUrl":"https://doi.org/10.1306/13672213m1213823","url":null,"abstract":"Abstract An evaluation of an integrated data set collected over the past 12 years designed to identify the parameters controlling reservoir quality and production properties in organic, siliceous mudrocks reveals the key diagenetic processes affecting the development of brittleness in siliceous mudrocks. This work was motivated by the failure of early efforts to correlate brittleness to x-ray diffraction (XRD) mineralogy. The outcome of this analysis has been the recognition of two, often overlapping, pathways to brittleness that are determined at the time of deposition by the relative proportions of clay, detrital quartz, and biogenic silica present in the original sediment and are later affected by burial history. One pathway begins with a phyllosilicate–mud-dominated sediment, and the other begins with a sediment containing common or abundant biogenic silica (opal-A). Both pathways are characterized by compactional porosity loss and both eventually include the generation of authigenic quartz cement; however, the source of that authigenic quartz is different between the two pathways. The authigenic quartz that characterizes the first pathway is developed from the illitization of smectite and is precipitated as a cement within the argillaceous matrix. This authigenic quartz is detectable along with the detrital quartz by XRD analysis. All other factors being equal, the volume of brittle, authigenic quartz cement derived from the alteration of smectite is proportional to the volume of original clay. As a result, the effectiveness of this cement to increase the brittleness of the rock may be impacted by the presence of the ductile clays. In the alternate pathway, authigenic quartz is derived from the transformation of biogenic opal-A and is independent of the amount of clay. Much of the XRD quartz volume in rocks derived from biogenic–silica-rich sediment that contained little or no detrital quartz will comprise a brittle, authigenic cement.","PeriodicalId":349849,"journal":{"name":"Memoir 120: Mudstone Diagenesis: Research Perspectives for Shale Hydrocarbon Reservoirs, Seals, and Source Rocks","volume":"164 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129318379","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}