ABSTRACT
The work process for designing a hydraulic fracturing treatment is outlined in Table 17.1. The žrst step is to develop a geologic model of the reservoir that should include the estimated stress and pressure in each of the geologic layers encountered in the zones of interest (Chapter 4). This information is used to determine the needed FCD and associated “FOI” for various proppants and fracture lengths (Chapter 3). An estimated µuid loss is then estimated using the equations also outlined in Chapter 3. A preliminary fracture geometry model is then constructed from the various rock stresses, µuid loss, modulus, and net pressure. This model is then calibrated using the processes outlined in Chapter 8. Once the model has been “calibrated,” a treatment schedule is constructed using the processes outlined in Chapter 7. Economics are then run on various job sizes, frac lengths, proppant types, µuid volumes, pump rates, and pounds per gallon to give an optimum net present value (NPV) and return on investment. All of this requires a valid data set. The intent of this chapter is to brieµy lay out the primary data needed for hydraulic fracture design/analysis, identify the “critical” data requirements, and brieµy describe the best or common sources for most of the data.
