Re-exploration programs for petroleum-rich sags in rift basins /
Re-exploration Programs for Petroleum-Rich Sags in Rift Basins covers the geological characteristics and potential of oil-rich depressions in a rifted basin. It describes up-to-date research and technology, detailing the current status of exploration. The overall aim of the book is to guide a new ro...
| Main Authors: | , , , , |
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| Corporate Author: | |
| Format: | eBook |
| Language: | English |
| Published: |
Cambridge, MA :
Gulf Professional Publishing,
[2018]
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| Subjects: | |
| Online Access: | Connect to the full text of this electronic book |
Table of Contents:
- Front Cover
- Re-exploration Programs for Petroleum-Rich Sags in Rift Basins
- Copyright
- Contents
- About the Authors
- Petroleum Industry Press
- Foreword 1
- Foreword 2
- Preface
- Chapter 1: Connotation and Workflow of Re-exploration
- 1. Necessity of Re-exploration for Oil-Rich Sags
- 2. Connotation of Re-exploration for Oil-Rich Sags
- 2.1. Definition of Re-exploration
- 2.2. Connotation of Re-exploration
- 3. Workflow of Re-exploration
- 3.1. Constructing the Sag-Wide Merged 3D Seismic Data Platform
- 3.2. Reconstructing the Basic Geology of the Sag
- 3.2.1. Structural reconstruction
- 3.2.2. Sedimentary reconstruction
- 3.2.3. Reservoir reconstruction
- 3.3. Quantitatively Characterizing the Spatial Distribution of Oil and Gas Resources
- 3.4. Creating the New Model of Multiprospect Hydrocarbon Accumulation
- 3.5. Multiprospect Overall Preexploration
- 3.6. Integration of Reserve Addition and Productivity Construction
- Chapter 2: Construction of Sag-Wide Merged 3D Seismic Data Platform
- 1. Sag-Wide Merged 3D Seismic Survey
- 1.1. Overall Deployment
- 1.1.1. Type I blocks
- 1.1.2. Type II blocks
- 1.1.3. Type III blocks
- 1.2. Second-Round 3D Seismic Data Acquisition
- 1.2.1. Optimization of acquisition parameters
- 1.2.2. Step-by-step implementation of second-round 3D seismic data acquisition
- 1.3. Complex Target-Specific Data Acquisition
- 1.4. Sag-Wide Merged 3D Seismic Data Processing
- 1.4.1. Raoyang Sag
- 1.4.2. Shenxian Sag
- 1.4.3. Langgu Sag
- 1.4.4. Baxian Sag
- 1.4.5. Merged processing in the Jizhong Depression
- 2. Urban/Mining Area 3D Seismic Survey
- 2.1. Special Survey Geometry in Large Barrier Zones
- 2.2. Comprehensive Survey of Near-Surface Barriers
- 2.3. Realization of Special Survey Geometry in Large Urban/Mining Areas.
- 2.3.1. Optimization of special survey geometry based on satellite photos
- 2.3.2. Well-shot and vibroseis combined shooting in urban/mining areas
- 2.4. Regularization Based on Irregular Folds
- 2.5. Effect of Urban/Mining Area 3D Seismic Survey
- 3. Multiphase 3D Seismic Fusion Survey
- 3.1. Principle
- 3.2. Multiphase 3D Fusion Geometry
- 3.2.1. Fold design based on raw data
- 3.2.2. Survey geometry design based on infilled sampling points
- 3.2.3. Survey geometry design based on spliced azimuths
- 3.3. Multiphase 3D Seismic Data Fusion Processing
- 3.3.1. Bin grid unification and homogenization
- 3.3.2. Integrated static correction based on time variant
- 3.4. Effect of Multiphase 3D Seismic Fusion Survey
- 4. Sag-Wide Merged 3D Seismic Data Processing
- 4.1. Workflow and Approach of Sag-Wide Merged 3D Seismic Data Processing
- 4.2. Establishment of Sag-Wide Near-Surface Structural Model
- 4.2.1. Low-velocity zone correction
- 4.2.2. Unified datum correction
- 4.3. Quantitative Wavelet Shaping and Prestack Data Regularization
- 4.4. Multidomain Multiinformation-Constrained Velocity Modeling
- Chapter 3: Reconstruction of Sag-Wide Structural Framework
- 1. Structural Interpretation of Sag-Wide 3D Seismic Data Volume
- 1.1. ``Four-Step´´ Regional Seismic-Geology Stratigraphic Correlation
- 1.1.1. Select critical wells for fine horizon calibration
- 1.1.2. Combine well data and seismic data of main seismic lines to determine the stratigraphic correlation scheme
- 1.1.3. Compare well data and seismic data to unify the geologic zonation of a whole sag
- 1.1.4. Establish the drilling zonation database of the merged 3D survey
- 1.2. Structural Interpretation Through ``Stereoscopic Quick Network Construction, and Combination of Plane and Section´´.
- 1.2.1. SOF to improve the capacity of fault identification based on seismic data
- 1.2.2. Massively-merged time slices to quickly interpret first-order and second-order faults
- 1.2.3. Massively merged geometric seismic attributes to assist the interpretation of third-order and fourth-order faults
- 1.2.4. Automatic tracing of horizons with strong reflection and good continuity
- 1.2.5. Stereoscopic quick network construction by combining plane and section to set up interpretation framework
- 1.2.6. Geologic knowledge to guide the precise interpretation of complex structure zones
- 1.2.7. Seismic attribute fusion to make precise structural interpretation
- 2. Overall Structural Features
- 2.1. Structural Framework of ``Belts in an EW Direction and Regions in an SN Direction´´
- 2.1.1. Belts in an EW direction
- Central uplift
- Western sag belt
- Eastern sag belt
- 2.1.2. Regions along SN direction
- North region
- Central region
- South region
- 2.2. Features of Basement Faults
- 2.2.1. Fault properties
- 2.2.2. Fault orders
- 2.2.3. Fault assemblage styles
- Fault assemblage styles in plane
- Parallel fault assemblage
- Net-like fault assemblage
- Parallel-arc fault assemblage
- Comb-like fault assemblage
- Broom-like fault assemblage
- Linear fault assemblage
- Oblique fault assemblage
- En echelon fault assemblage
- Fault assemblage styles on sections
- Fault assemblage styles on sections
- Step-shaped fault-block assemblage
- Graben-horst assemblage
- 2.3. Structural Styles
- 2.3.1. Extensional structural style
- Drape anticline structure on a buried hill
- Anticline structure with subsided top of basement uplift
- Roll-over anticline structure
- Graben antiformal structure with stratigraphic compensation
- Gravity-slip anticline
- 2.3.2. Strike-slip structural style
- Negative flower structure.
- En echelon structure
- Broom-like structure
- 2.3.3. Compressional structural style
- 3. Features of Weak Structure Zones
- 3.1. Basic Features of Weak Structure Zones
- 3.2. Identification Indexes of Weak Structure Zones
- 3.2.1. Bottom curvature K (m-1)
- 3.2.2. Derivative of formation thickness variation rate Ah (km-1)
- Formation thickness variation rate
- Derivative of formation thickness variation rate
- Areal density of faults
- 3.2.3. Areal density of fault throw M (km2)
- 3.3. Distribution of Weak Structure Zones
- 3.4. Evolution of Weak Structure Zones
- 3.4.1. Zoning of tectonic activity intensity in the Kongdian Formation-Sha 4 Member
- 3.4.2. Zoning of tectonic activity intensity in the Sha 3 Member-Sha 2 Member
- 3.4.3. Zoning of tectonic activity intensity in the Sha 1 Member-Dongying Formation
- 3.4.4. Zoning of tectonic activity intensity in the Neogene-Quaternary
- 3.4.5. Evolution patterns of weak structure zones
- 4. Structural Evolution Features
- 4.1. Thrusting in an SE Direction During the Yanshanian Orogeny
- 4.2. Extension in an SEE Direction During the Deposition of the Kongdian Formation-Sha 4 Member
- 4.3. Extension in an SE Direction During the Deposition of the Sha 3 Member-Sha 2 Member
- 4.4. Extension and Strike-slipping in an SSE Direction During the Deposition of Sha 1 Member-Dongying Formation
- 4.5. Sagging During the Neogene
- Chapter 4: Reconstruction of Sag-Wide Depositional System
- 1. Establishment of Sequence Stratigraphic Framework
- 1.1. Identification of the Sequence Boundary
- 1.1.1. Identification of the first- and second-order sequence boundaries
- 1.1.2. Identification of the third-order SB
- 1.1.3. Identification of the boundary in sequence
- FFS (First Flooding Surface)
- Maximum Flooding Surface (MFS)
- 1.2. Establishment of Sequence Stratigraphic Framework.
- 1.2.1. Sequence division and correlation
- Lower sequence
- Middle sequence
- Upper sequence
- SQ1
- SQ2
- SQ3
- SQ4
- SQ5
- SQ6
- SQ7
- SQ8
- SQ9
- SQ10
- SQ11
- SQ12
- SQ13
- 1.2.2. Systems tract division
- Division of lacustrine sequence systems tract (LSST)
- LST
- TST
- HST
- Division of fluvial sequence systems tract (FSST)
- Base-level rising systems tract
- Base-level falling systems tract
- Division of parasequence and parasequence set
- Prograde parasequence set (PPSS)
- Retrogradational parasequence set (RPSS)
- Aggradational parasequence set (APSS)
- 1.3. Characteristics and Controlling Factor of Sequence Stratigraphy
- 1.3.1. Characteristics of sequence stratigraphy
- Vertical and horizontal sequence developments have obvious differences
- Different types of subsags have multiple types of superimposition patterns
- Superimposition pattern of inherited subsag sequence
- Superimposition pattern of reverse subsag sequence
- Superimposition pattern of early growth type subsag sequence
- Superimposition pattern of offset type subsag sequence
- Superimposition pattern of systems tract is different in different zones and different stages
- Superimposition pattern of systems tract is different in different zones
- a. Superimposition pattern of the systems tract in gentle slope belt
- b. Superimposition pattern of the systems tract in steep slope belt
- Superimposition pattern of systems tract is different at different stages
- a. Superimposition pattern of rapid lake-forming systems tract
- b. Superimposition pattern of slow lake-forming systems tract
- 1.3.2. Controlling factor of sequence stratigraphy
- The stage of regional tectonic activities controls the development of second-order sequences
- Difference of boundary fault activities controls the configuration of third-order sequences.