Download or read book Preliminary Assessment of High resistivity Cap rock Shale in the Frio Formation of the Texas Gulf Coast Annual Report written by and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Mapping of high resistivity cap rock shales in the Frio Formation of the Texas Gulf Coast shows that few areas of thin cap rock occur in the upper Texas Gulf Coast, and more extensive, thicker cap rock occurs in the lower Texas Gulf Coast. Increases in (1) maximum shale resistivity, (2) unstable minerals (volcanic rock fragments, detrital carbonate grains), and (3) authigenic cementation parallel the increase in cap rock from the upper to the lower Gulf Coast. Similarity in cap rock distribution in two major Frio deltaic depocenters is not evident. Facies analysis of regional cross sections in the lower Texas Gulf Coast and of cross sections in Sarita East field, Kenedy County, shows preferential development of cap rock in the delta-front/slope facies of the Norias delta system. Sand content of the cap rock interval varies from 23 to 41 percent in part of Sarita East field, suggesting that if cap rock is due to authigenic cementation, such sands may act as fluid conduits during mineralization. Cap rock is rarely developed in the shale-rich prodelta and distal delta-front facies. High resistivity cap rock shales have been considered a result of authigenic calcite cementation, but definite evidence for this origin is lacking. Preliminary mineralogic analyses of well cuttings have not yielded satisfactory results. Analysis of core through cap rock and non-cap rock intervals will be required to determine the mineralogic variability within each interval and to accurately assess any mineralogic control of the high resistivity log response.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1982 with total page 1696 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geothermal Energy Update written by and published by . This book was released on 1982-12 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fossil Energy Update written by and published by . This book was released on 1982 with total page 780 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Annual Report written by University of Texas at Austin. Bureau of Economic Geology and published by . This book was released on 1982 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Annual Index written by and published by . This book was released on 1983 with total page 1166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Petroleum Abstracts Literature and Patents written by and published by . This book was released on 1983 with total page 1452 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1983-04 with total page 1702 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Using Presence of Calcite Cap Rock in Shales to Predict Occurrence of Reservoirs Composed of Leached Secondary Porosity in the Geopressured Zone Annual Report June 1 1980 October 31 1980 written by and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The distribution of high-resistivity shale in the Frio Formation between hydropressured and geopressured strata has been mapped along the Texas Gulf Coast. Two high-resistivity intervals more than 1000 ft thick have been mapped, one in Brazoria and Galveston Counties and the other in Kenedy County. They coincide with Frio delta systems and may be related to extraordinary quantities of CO2 produced by deltaic sediments rich in woody and herbaceous matter. Beyond being calcareous, the nature of the high-resistivity interval is enigmatic and its relationship to deep secondary porosity problematic. Most of the contained carbonate is microscopically and isotopically skeletal in origin, revealing no evidence of diagenetic modification. Minor rhombs of iron-bearing carbonate tens of microns in size were identified. Detrital feldspar compositions are being established to test subsequent changes in feldspar composition resulting from progressive burial and albitization. Hydrolysis reactions for authigenic minerals and reactions between key pairs of minerals have been written. Thermodynamic functions for complex phyllosilicates at temperatures up to 200°C have been calculated. From thermodynamic calculations it was predicted that ferroan calcite would be the favored authigenic carbonate in shales.
Download or read book Government Reports Annual Index Keyword A L written by and published by . This book was released on 1983 with total page 1376 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Interference Problems on Wing fuselage Combinations in Inviscid Incompressible Flow written by Aeronautical Research Council (Great Britain) and published by . This book was released on 1974 with total page 1212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Resource Evaluation of the Frio Formation Frio MSU Texas Gulf Coast Province written by William E. Galloway and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geopressured Geothermal Fairway Evaluation and Test well Site Location Frio Formation Texas Gulf Coast written by Don G. Bebout and published by . This book was released on 1978 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hydrocarbon Production and Exploration Potential of the Distal Frio Formation Texas Gulf Coast and Offshore written by H. S. Hamlin and published by . This book was released on 1989 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography and Index of Geology written by and published by . This book was released on 1985 with total page 1958 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Controls on Porosity and Permeability of Hydrocarbon Reservoirs in Lower Tertiary Sandstones Along the Texas Gulf Coast written by R. G. Loucks and published by . This book was released on 1986 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Meteoric water penetration in the Frio Formation Texas Gulf Coast written by Andrew Charles Alexander Donnelly and published by . This book was released on 1988 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt:
