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Dipmeter Surveys in Petroleum Exploration

Madhusadan Patil



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CRC Press
27 December 2016
Oil exploration requires proper understanding of the geological set-up of any area to make the process economical and effective. This involves geological, geophysical, geochemical surveys including studying the lateral variations in litho-stratigraphic units in the adjoining areas surrounding the bore-hole, done through study of Dipmeter logs. This book 'Dipmeter Surveys in Petroleum Exploration' giving all the required backup of the other allied subjects for easy and meaningful interpretations of the Dipmeter data, so that drilling of dry wells is avoided to maximum possible extent and new discoveries to be made, thereby enhancing the oil resource of a particular geographical location.
By:   Madhusadan Patil
Imprint:   CRC Press
Country of Publication:   United Kingdom
Dimensions:   Height: 279mm,  Width: 216mm, 
Weight:   635g
ISBN:   9781138626539
ISBN 10:   1138626538
Pages:   142
Publication Date:   27 December 2016
Audience:   General/trade ,  College/higher education ,  ELT Advanced ,  Primary
Format:   Hardback
Publisher's Status:   Active
GENERALITIES Dipmeter surveys Introduction The Dipmeter tool Types of tools Dip Computation Introduction Methodology Presentation of dip-data Kinds of dips Structural dip determination Dip & the bore-hole drift Structural dips-difficult environments Structural dip deletion Dip Groups & their Mega-Patterns Mega Patterns STRUCTURAL & TEXTURAL INTERPRETATION Structural interpretation Introduction Use of dipmeter and FMI (image) tools in structural interpretation Information required for structural analysis of dip-data Statistical Study of the dip-data Stereographic Projections Stereographic representation of structural elements Methods of dip data interpretation Folds sedimentary Introduction Recogintion of folds from the tadpole plot Salt and shale domes Faults Introduction Recognition of faults from the tadpole plot Exact depth of the fault Normal faults Growth fault Reverse fault Structural cross-section from a single dipmeter log Fractures Introduction Detection of fractures by Unconformity Texture of the rocks Introduction Texture Well logging approach for determination of textural parameters Detrital rock texture Carbonate rock texture Porosity Automatic extraction of textural information Sedimentary Rock-Structures Introduction Primary sedimentary structures Secondary sedimentary structures Bed description Stratigraphic interpretation Stratigraphic interpretation Introduction System for classification of depositional environments Siliciclastic continental deposits Reservoir Characterstics Fluvial System Introduction Alluvial cones and fans Reservoir Characterstics Fluvial Channel Deposits Meandering Channels Straight Channels Basic steps in interpreting fluvial channels Deltas Introduction Major depositional regimes of delta system Kinds of deltas Characteristics of sand deposits Inter-Deltaic environments Introduction Morphological features of different types of coasts Dip Trends Geomorphic Zones of an off-shore shelf Carbonate sediments, reefs and other buried topography Introduction Carbonates Reefs and other buried topography Top of the buried feature from dip-log Recognition of reef talus from the dip-log Dips due to solution of surrounding salts Dips produced as a result of Dip of the reef Unconformity traps Estimation of compaction Compaction features Continental shelf sands Introduction Shelf sand deposits Deep water deposition Introduction Mechanism of sedimentation Deep sea depositional models Classification of sub-marine fans Controls on deep sea sedimentation Litho-facies and sequence of sub-marine fans Facies associations Well logs Petroleum geology of deep sea sands Dip Scatter as an Environmental indicator Introduction Inner neretic zone Middle neretic zone Outer neretic zone Continental slope Abyssal range Dip scatter due to sea level changes Pre-requisites & Rules for Interpretation of DipMeter data Practical examples References and Bibliography

Madhusudan Patil holds a Ph.D degree in Geology from Nagpur University and postgraduate diploma in Arial Photo-Interpretation as applied to Geology from Indian Institute of Arial Photo-Interpretation, Survey of India, Dehradun. He has varied experience in the field of Petroleum Exploration and teaching. He worked in various capacities in ONGCL, Deharadun (India) and as Inginieur Geologue in Sector Erg Oriental of SONATRACH Oil Company of Algeria for two years. Apart from this, he worked as consulting Petroleum Exploration Geologist to various oil companies operating particularly in Gujrat State of India. He worked extensively on interpretation of Arial photographs and Dipmeters. This book is a result of his practical experience in the Dipmeter interpretation which he did in most of the Companies/Organizations he worked.

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