Sixth Quarterly Report
June 1, 1997 to August 31, 1997
Fractured Reservoir Discrete Feature
Network Technologies
A Project of
Fundamental Geoscience
Research and Development
BDM-Oklahoma
U.S. Department of Energy
National Oil and Related Programs
Contract Number
#G4S51728
Prepared by:
William S. Dershowitz
Golder Associates Inc.
Redmond, WA
Herbert H. Einstein
Violeta Ivanova
Massachusetts Institute of Technology
Cambridge, MA
September 15, 1997
963-1357.521
q6a.doc
1. QUARTERLY PROGRESS OVERVIEW
1.1 Overview of Progress
1.2 Project Deliverables
1.3 Issues and Resolutions2.2.1 Task 1.1.2: Data Updates
2.2.2 Task 1.2.1: 3D Hierarchical racture Model
2.2.3 Task 1.2.2 Hierarchical Fracre Model Verification
2.2.4 Task 3.1.1: Linkage to Reservoir Models (Software Development)
2.2.5 Task 3.2.1: MS Windows 95 Analysis System
2.2.6 Task 3.2.3: Software Linking
2.2.7 Task 4.1.2: Well Testing Data Acquisition
2.2.8 Task 5.1.2: WWW Site Updates
2.2.9 Task 5.2.1 Progress Reports
2.2.10 Task 5.2.2: Research Reports
2.2.11 Task 5.2.3: Presentations
2.2.12 Task 6: Management3. SCHEDULE, DELIVERABLES, AND MILESTONES
List of Tables
Table 2-2 Calculated statistics of marked polygons created by a Poisson line tessellation
Table 2-4 StrataModel *.RW File Format Example
Table 2-5 StrataFrac Analysis Sequence: DFN_StrataModel
List of Figures
Figure 2-1 Production History to July, 1997
Figure 2-2 Bottom Hole Pressure
Figure 2-4 Steam Injection, Well 49D8
Figure 2-5 Hierarchical Model Reference Frame
Figure 2-6 Coefficient of Co-planarity in HFM
Figure 2-7 Rotation of Fracture Orientations With Respect to Domed Structure
Figure 2-8 HFM With Fracture Intensity Highest Near Fault
Figure 2-9 HFM With Two Fracture Sets
Figure 2-10 M Horizon Fold, Tract 49 Seven Rivers Formation
Figure 2-11 Cross-Section View of HFM at Well UY4007
Figure 2-12 3-D View of HFM at Well UY4007
Figure 2-13 Rose Diagrams of Strike for HRM Simulation and FMI/FMS Measurements, Well UY4007
Figure 2-14 Histograms of Dip for HFM Simulation and FMI/FMS Measurements, Well UY4007
Figure 2-15 Rose Diagrams of Strike for HFM Simulations and FMI/FMS Logs
Figure 2-16 HFM For Yates Field Tract 49 Asymmetric Dome
Figure 2-17 StrataFrac Flow Chart
Figure 2-18 StrataFrac User Interface
Figure 2-19 Grid Cell Connectivity
Figure 2-20 Grid Cell Connectivity Analysis
Figure 2-21 Oda (1985) Approach for Grid Cell Permeability
Figure 2-22 Calculation of Grid Cell Permeability by Simulation
Figure 2-23 Fracture Spacing and _-Factor
Figure 2-24 Inactive Cells and Permeability Barriers
This report describes progress on the project, "Fractured Reservoir Discrete Feature Network Technologies" during the period June 1, 1997 through August 31, 1997. The report presents summaries of technology development for three active research areas: (1) research related to development of the hierarchical fracture model, (2) linkage of discrete fracture network (DFN) and conventional reservoir simulator approaches, and (3) development and implementation of the Windows 95 data analysis system. In addition, the report provides information on project status, publications submitted, data collection activities, and technology transfer through the world wide web (WWW).
Theoretical development of the hierarchical fracture model (HFM) was completed during the quarter. The HFM was then implemented for the project study site at Tract 49, as part of the practical model validation. Simulation results indicate the HFM provides a good DFN representation for the Yates field Tract 49.
Software development activities during the quarter focused on development of the underlying algorithms of DFN_StrataModel and DFN_ECLipse. Updated software versions were posted on the project web site.