EXLOG/Whittaker Formation Evaluation

Geological Procedures
1985
ISBN: 978-94-009-5353-6
Verlag: Springer Netherland
Format: PDF
Kopierschutz: 1 - PDF Watermark

E-Book, Englisch, 183 Seiten, eBook

Reihe: Environment, Development and Public Policy: Public Policy and Social Services

Petroleum Geology is a complex discipline, drawing upon data from many technologies. It is the function of Well site Geologists to integrate processed data produced prior to and dur ing the drilling operation With their own geological observations. For this reason, it is necessary that geologists appreciate some of the technology, theory of measurement, and processing of this data in order to better assess and use them. In the Field Geologists's Training Guide (Exlog, 1985) and Mud Logging: Principles and Interpretations (Exlog, 1985), an introduction is given to the scope of petroleum geology, and the techniques of hydrocarbon (oil and gas) logging as a reservoir evaluation tool. This handbook is intended to provide the Logging Geologist, and those training for a Consultant Wellsite Geologist position, with a review of geological techniques and classification systems. This will ensure the maximum development of communicable geological informa tion. Whether a geologist's work lies in this direction or in the more applied field of pressure evaluation, it is the application of geological insight to engineering problems that distinguishes the professional logging geologist in the field. This book will be of interest to and become a regular reference for all geologists. 1 INTRODUCTION CUTTINGS RECOVERY 1. 1 In an ideal borehole and mud system, cuttings would be transported to surface with the same order and composition as they were cut, as in Figure 1-1.

Zielgruppe

Research

Autoren/Hrsg.

EXLOG/Whittaker

Inhaltsverzeichnis

1. Introduction.- Cuttings Recovery.- Density.- Viscosity.- Gel Strength.- Pipe Rotation.- Particle Shape and Size.- Summary.- Cuttings Sampling.- Shale Shaker.- Unwashed Sample.- Washed Sample.- Dried Sample.- Shipping Sample.- Desander and Desilter.- Mud.- Combined Sample.- Core Sampling.- Rock Classification.- 2. Detrital Rocks.- Classification.- Rudaceous Rocks.- Arenaceous Rocks.- Argillaceous Rocks.- Description.- Particle Size.- Particle Shape.- Surface Texture.- Sorting.- Fabric.- Structure.- Mineralogy.- Clastic.- Oligomict.- Polymict.- Resistate.- Hydrolysate.- Induration.- Clastic and Resistate.- Hydrolysate.- Cement.- Matrix Lithology.- Accessories.- Minerals.- Moh’s Scale of Hardness.- Fossils.- Color.- Petroleum Significance.- Clay Diagenesis.- Abnormal Pore Pressure.- Source Potential.- Porosity.- Permeability.- Hydrocarbon Shows.- 3. Carbonate Rocks.- Classification.- Pettijohn.- Dunham.- Archie.- Matrix.- Visible.- Folk.- Allochems.- Intraclasts.- Oolites.- Fossils.- Pellets.- Microcrystalline Calcite Ooze.- Sparry Calcite.- Limestone Categories.- Type I.- Type II.- Type III.- Type IV.- Limitations.- Leighton and Pendexter.- Plumley.- Description.- Sample Preparation.- Cores.- Cuttings.- Rock Class.- Sedimentary Carbonates.- Diagenetic Carbonates.- Particle Size.- Particle Type.- Carbonate minerals.- Aragonite.- Calcite.- Dolomite.- Origin.- Clastic Debris.- Bioclasts.- Colloclasts.- Carbonate Detritus.- Terrigenous Detritus.- Intact Material.- Pellets.- Oolites.- Bioliths.- Particle Shape.- Surface Texture.- Sorting.- Fabric.- Structure.- Mineralogy.- Recrystallization.- Dolomitization.- Solution.- Induration.- Cementation.- Accessories.- Color.- Petroleum Significance.- Porosity.- Primary Porosity.- Secondary Porosity.- Predepositional Porosity.- Depositional Porosity.- Eogenetic Porosity.- Mesogenetic Porosity.- Telogenetic Porosity.- Porosity Description.- Permeability.- 4. Chemical Rocks.- Non-Marine Carbonates.- Precipitation.- Lacustrine Deposits.- Siliceous Rocks.- Organic.- Inorganic.- Ferruginous Rocks.- Carbonates.- Silicates.- Oxides and Hydroxides.- Sulfides.- Aluminous Rocks.- Phosphatic Rocks.- Saline Rocks.- Calcium Salts.- Carbonates.- Sulfates.- Halite.- Bittern Salts.- Carbonaceous Rocks.- Classification.- Peat.- Lignite.- Bituminous Coal.- Anthracite.- Solid Hydrocarbons.- Mineral Wax.- Asphaltites.- Pyrobitumens.- 5. Igneous And Metamorphic Rocks.- Igneous Rocks.- Classification.- Plutonic Series.- Volcanic Association.- Intrusive.- Extrusive.- Explosive.- Hypabyssal Rocks.- Description.- Silica Percentage.- Grain Size.- Texture.- Homeocrystalline.- Porphyritic.- Xenolithic.- Fragmental.- Grain Form.- Euhedral Granular.- Subhedral Granular.- Anhedral Granular.- Mineralogy.- Quartz.- Feldspars.- Feldspathoids.- Ferromagnesian Minerals.- Rock Name.- Metamorphic Rocks.- Classification.- Facies.- Parent.- Process.- Contact.- Autometamorphism.- Dynamic.- Regional.- Description.- Texture.- Cataclastic.- Flaser.- Mylonitic.- Hornfelsic.- Granoblastic.- Slaty.- Phyllitic.- Schistose.- Gneissose.- Rock Name.- Appendix A: Formation Evaluation Log Symbols.- References.