Title:
Introduction to well logs and subsurface maps
Personal Author:
Publication Information:
Tulsa, Oklahoma : PennWell Corp., 2008
Physical Description:
xiii, 236 p. : ill. ; 23 cm.
ISBN:
9781593701383
Available:*
Library | Item Barcode | Call Number | Material Type | Item Category 1 | Status |
---|---|---|---|---|---|
Searching... | 30000010178972 | TN871.35 E94 2008 | Open Access Book | Book | Searching... |
Searching... | 30000010254276 | TN871.35 E94 2008 | Open Access Book | Book | Searching... |
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Summary
Summary
Subsurface mapping is a way to visualize various geologic and hydrologic features in any dimension from a 1-D cross section to a 4-D production map. All subsurface map types can be useful, but the key is to know what you are investigating and what map types are most appropriate.
This new book introduces different types of geophysical logs and subsurface maps that can be generated from basic well data, and subsurface problems that can be solved using geophysical logs and subsurface maps. "Hands-on" exercises reveal how each map type is generated and what applications they may have. Exercises at the end of each chapter introduce different types of wells and lithologies.
Table of Contents
List of Figures | p. ix |
Acknowledgments | p. xv |
Preface | p. xvii |
1 Introduction to Well Logs and Terminology | p. 1 |
Well Information | p. 2 |
API Numbering | p. 5 |
State code | p. 5 |
County code | p. 6 |
Well number | p. 6 |
Sidetrack code | p. 7 |
Event code | p. 7 |
Subsurface Thicknesses | p. 8 |
Exercises | p. 12 |
Questions | p. 15 |
2 Basic Well Logs and Log Signatures | p. 17 |
Basic Well Log Types | p. 17 |
Gamma Ray (GR) | p. 18 |
Resistivity | p. 20 |
Spontaneous Potential (SP) | p. 20 |
Photoelectric (PE) | p. 20 |
Neutron | p. 21 |
Density | p. 21 |
Dipmeter | p. 22 |
Caliper | p. 22 |
Sonic (Acoustic) | p. 22 |
Temperature | p. 23 |
Log Signature Patterns | p. 23 |
Exercise | p. 25 |
Questions | p. 31 |
3 Introduction to Subsurface Maps and Contouring | p. 33 |
Contouring | p. 34 |
Exercises | p. 37 |
Questions | p. 40 |
4 Structural and Stratigraphic Interpretations | p. 41 |
Picking Methodology | p. 41 |
Structural Interpretations | p. 43 |
Stratigraphic Interpretations | p. 45 |
Exercises | p. 47 |
Questions | p. 55 |
5 Structure Contour Maps | p. 57 |
Exercises | p. 60 |
Questions | p. 72 |
6 Thickness Maps | p. 73 |
Exercises | p. 78 |
Questions | p. 90 |
7 Facies Maps | p. 91 |
Exercises | p. 95 |
Questions | p. 106 |
8 Trend Surface Maps | p. 107 |
Three-Point Problems | p. 119 |
Exercises | p. 112 |
Questions | p. 117 |
9 Trend Surface Residual Anomaly Maps | p. 119 |
Making a TSRA Map | p. 121 |
Exercises | p. 124 |
Questions | p. 136 |
10 Hydrologic Maps and Injection Wells | p. 137 |
Hydrologic Maps | p. 137 |
Injection Wells | p. 140 |
Exercises | p. 143 |
Questions | p. 148 |
11 Formation Fluid Interpretation and Hydrocarbon Reservers | p. 149 |
Water Saturation Calculations | p. 152 |
Calculating Hydrocarbon Reserves | p. 154 |
Exercises | p. 158 |
Questions | p. 160 |
12 Mining Maps | p. 161 |
Calculating Mining Resources and Reserves | p. 163 |
Exercise | p. 165 |
Questions | p. 167 |
13 Cross Sections | p. 169 |
Cross Section Types | p. 169 |
Contour slicing | p. 172 |
Vertical exaggeration | p. 174 |
Balanced cross sections | p. 175 |
Exercises | p. 178 |
Questions | p. 184 |
Appendix Swan Creek Term Project | p. 185 |
Exercise | p. 188 |
Questions | p. 209 |
Glossary | p. 211 |
List of Abbreviations | p. 221 |
Bibliography | p. 225 |
Index | p. 227 |