The course objective is to provide students with theoretical and practical expertise to acquire both the reservoir transmissibility and pressure required for fracturing production optimization and the correct in-situ state of stress controlling frac placement. The course covers the integration of fundamentals of rock stresses, pressure diffusion, leak-off, poro-elasticity, closure analysis( GPlot) , After Closure analysis (minifalloff method) applied to conventional fracturing models and their calibration using field data. Applicability to extremely tight reservoir (shale) are discussed.

Agenda

Audience

Prerequisites

Agenda

Day 1

Fracturing History and Concepts

Insitu stress and incipient failure - non-elastic rock - poroelasticity

Dynamic closure test (datafrac part 1)

Near wellbore stress and non-aligned frac

Day 2

Material Balance

Frac Pressure & PTA - Geometry model

G-plot decline analysis (datafrac part 2)

Wellbore frac height log temperature - Tracer - CHSA

Day 3

Leak-off

ACA's Theory and Disgnostic Plot

Vertical Fracture Complexity (shales) (short picture set of slides)

Exploration Fracture in vertical wells

Fractip - Origin of Log-Log and Pressure Derivative

Frac Production Optimization (on request)

Day 4

Workshop

Local example analysis (max. 8 data sets, 1hr/each)

20 min - presentation of cases (geological context, local practice, well specifics)

40 min - discussion

Audience

Production and Reservoir Engineers and other professionals involved in the design and evaluation of hydraulic fractures.

Prerequisites

Exposure to Hydraulic Fracturing Design and Evaluation.