Ways to Identify Bypassed Pay From DST Data
Practical Drillstem Test (DST) Interpretation Seminar for Engineers & Geologists
Basic components in the testing assembly; auxiliary tools and functions. (ie. what is their function, not a lengthy description).
Use of bottom hole chokes; water and nitrogen cushions; test times; rate stabilization; selection of pressure gauges; design criteria for safety; security; and precision.
Basic Pressure Chart Interpretation
A major portion of the course consists of qualitative inspection of charts (non numerical).
Quantitative Reservoir Analysis
Horner build-up plots: determining static pressure transmissibility, permeability, skin effect, radius of investigation, stabilized oil or gas rates; AOF and productivity index; DST type curve analysis.
Use of square root and log/log plots to identify elongate reservoirs, presence of fractures or distance to boundaries; identifying dual permeability systems.
Closed Chamber DSTs
The principles of the method and simple computations used at interpretation will be explained (with field examples) to illustrate the following topics:
Break for a photo. Red Sea, Egypt, May, 2002
© 2009 Hugh W. Reid & Associates Ltd.