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Arabian American Center Details Training & Development
Program Title:
Waterflooding Performance Predictions and Surveillance
Location:
Cairo
Date:
26.07.2020 - 30.07.2020
Fees:
$ 2750

Description

Course Introduction & Main Objective

    This five-day course covers the reservoir engineering aspects of waterflooding. The seminar combines geology, rock and fluid properties, and immiscible displacement theory to develop waterflooding prediction techniques and to aid in the evaluation of actual waterflood performance behavior. Detailed predictions of oil and water producing rates, water injection rates, and recovery efficiency (areal, vertical, and displacement), and an analysis of other variables which control recovery efficiency are included. Also discussed are waterflood surveillance techniques such as production plots, WOR analysis, floodable pore volume versus primary depletion pore volume, injection profile testing, pressure transient testing, step-rate testing, Hall plots, pattern balancing, bubble maps, volumetric sweep evaluation, and injection efficiency determination. These surveillance techniques provide the engineer with data required for the efficient management of both new and mature waterfloods. Several waterflood case studies are reviewed.


     The course is ideally suited for engineers and geologists with several years of waterflood experience; however, the course is presented in a manner so that both beginning and experienced personnel will find the material very useful. The course content and example problems have been selected to teach and illustrate important concepts.


Who Should Attend?

             1. Engineers
              2. Geologists
              3. Technicians
              4. Operators


Course Contents:

              • 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

 

 

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