Reservoir Management

Financial Decisions

Geological Evaluation and Reservoir Characterization

Training

Technical Representation

Client List

Upcoming Events

2017 Waterflood Courses

April 24-28, 2017
Midland College Petroleum Professional Development Center
(Midland College PPDC - Technical - Engineering)

May 8-12, 2017
H O T
Vienna, Austria

October 16-20, 2017
Houston Post Oak Hilton
Houston, Texas

October 29 - Nov. 2, 2017
H O T
Dubai, UAE

WILLIAM M. COBB & ASSOCIATES, INC.

12770 Coit Road
Suite 907
Dallas, Texas 75251
Office 972.385.0354
Fax 972.788.5165

Training

Course Outline
  • FACTORS CONTROLLING WATERFLOOD RECOVERY
    Initial oil in place, displacement sweep efficiency, areal sweep efficiency, vertical sweep efficiency
  • REVIEW OF ROCK PROPERTIES AND FLUID FLOW
    Wettability, imbibition and drainage concepts, capillary pressure, air permeability, absolute permeability, effective permeability, relative permeability
  • DETERMINATION OF OIL IN PLACE
    Current oil saturation versus initial oil saturation, gas saturation, porosity-permeability cutoffs, net pay determination, calibration of log porosity with core porosity, rock continuity and floodable pay, water floodable pore volume versus primary production pore volume versus total pore volume.
  • MECHANISM OF IMMISCIBLE FLUID DISPLACEMENT (Displacement Sweep)
    Fractional flow equations, frontal advance theory, Buckley-Leverett theory, water saturation distribution, performance before breakthrough, performance after breakthrough, effects of gas saturation, fillup time
  • FLOOD PATTERNS AND AREAL SWEEP EFFICIENCY
    Mobility ratio, basic flood patterns (line drive, five-spot, nine-spot, etc.), irregular patterns, peripheral patterns, iso-potential lines, streamlines, areal sweep efficiency, pattern selections
  • RESERVOIR HETEROGENEITY
    Vertical permeability variation, areal permeability variation, detection of stratification, selection of layers, Dykstra-Parsons coefficient, effect of cross flow, vertical sweep efficiency
  • INJECTION RATES AND PRESSURES
    Fluid injectivity, effect of mobility ratio, gas saturation, patterns and formation damage, pattern injectivity before and after fillup
  • WATERFLOOD PERFORMANCE PREDICTION
    Dykstra-Parsons (DP) method; Stiles method; Craig-Geffen-Morse (CGM) method; comparison of DP, Stiles, and CGM; numerical models; empirical models
  • WATERFLOOD SURVEILLANCE
    Production testing, production plots, cut-cum graphs, recovery factor versus net injection, floodable pore volume versus primary production pore volume, transient pressure testing, step-rate tests, Hall plots, injection profile management, pattern balancing, volumetric sweep determination, injection water quality
  • PLANNING A WATERFLOOD
    Starting time, reservoir description, PVT data, primary production, gas saturation, patterns, injection water availability and compatibility tertiary recovery