Coring Operations: Procedures for Sampling and Analysis of Bottomhole and Sidewell Cores - Couverture souple
Synopsis
1. Introduction.- General.- Quantitative Core Analysis.- Qualitative Core Eveluation.- The Role of the Logging Geologist.- Core Retrieval.- Core Sampling.- Core Description.- Core Packing and Shipping.- Core Analysis.- Reservoir Characteristics.- Porosity.- Permeability.- Saturation.- Reservoir Geology.- Distribution of Fluids.- Phase Relationships.- Core Characteristics.- Porosity.- Measurement.- Limitations.- Permeability.- Measurement.- Limitations.- Saturation.- Measurement.- Limitation.- 2. Coring Procedures.- General.- Bottomhole Coring.- Conventional Coring.- The Core Bit.- The Core Barrel.- The Outer Barrel.- The Inner Barrel.- Coring.- Retrievable Core Barrels.- Wireline.- Reverse Circulation.- Rubber Sleeve Core Barrel.- Oriented Core Barrel.- Pressure Core Barrel.- Core Ejector Bit.- Sidewall Coring.- Wireline Core Gun.- Wireline Core Slicer.- Rotary Sidewall Corer.- 3. Retrieval and Sampling of Cores.- General.- Conventional Cores.- Long-Term Planning.- Picking a Core Point.- Set-Up to Core.- Logging the Core.- Depth and Footage.- Low Weight-on-bit.- Gradual Changes in Weight-on-bit.- Lost core.- Rate of Penetration.- Gas Evaluation.- Oil Evaluation.- Cuttings Lithology.- Mud Tests.- Salinity.- Nitrate Ion.- Preparation for Core Retrieval.- Work Area.- Rig Floor.- Removing Core From the Barrel.- Retrieving the Core.- Boxing the Core.- Sampling for Core Analysis.- Sample Selection.- Sample Preservation.- Geological Evaluation.- Macroscopic Examination.- Microscopic Examination.- Hydrocarbon Evaluation.- Special Samples.- Core Slabbing.- Thin Sections.- Acetate Peels.- Shipping the Core.- Retrievable Barrel Cores.- Logging.- Sampling.- Rubber Sleeved Cores.- Logging.- Sampling.- Oriented Cores.- Pressured Cores.- Logging.- Recovery.- Ejector Cores.- Sidewall CST Cores.- Gun Set-Up.- Hole Size.- Formation Hardness.- Misfires and Lost Bullets.- Extraction.- Core Evaluation.- Recovery.- Lithology.- Hydrocarbons.- Core Analysis.- Logging.- Sidewall Core Slices.- Rotary Sidewall Cores.- 4. Core Analysis Methods.- Principles.- Porosity.- Permeability.- Saturation.- Retort Procedure.- Extraction Distillation Procedure.- Sample Preparation.- Saturation Sample.- Permeability Sample.- Porosity Sample.- Sample Extraction and Drying.- Solvent Extraction.- Drying.- Sealing the Permeability Sample in Wax.- Analytical Procedure.- Preparation.- Long-Term.- Short-Term.- Equipment Calibration.- Saturation Stills.- Porometer.- Mercury Level Check.- Air Removal.- Calibration.- Permeameter.- Solid Plug Calibration Test.- Flow comparison Test.- Core Analysis Test.- Optional Total Porosity Test.- Oil Gravity Tests.- Water Salinity Tests.- Core Analysis Calculations.- Effective Porosity.- Permeability.- Saturations.- Alternate Methods.- The Oil Correction.- The Pore Volume Calculation.- Total Porosity.- Presentation of Core Analysis Data.- Sidewall Core Analysis.- Core Description.- Core Analysis.- Sample Preparation.- Porosity and Permeability.- Saturation.- Care of the Core Analysis Kit.- Cleanup and Storage.- Tear out and Shipping.
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