PSI - Issue 6

A. Martemyanov et al. / Procedia Structural Integrity 6 (2017) 292–300 Martemyanov Andrey et al / Structural Integrity Procedia 00 (2017) 000 – 000

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Created fracture parameters may be estimated by repeated acoustic logging after frac procedure. Azimuthal (horizontal) anisotropy interpretation comparison of two measurements makes it possible to determine fracture propagition intervalsand its orientation (Fig. 1, right). Analysis that in the case of central J0 part perforating fracture develops in the isotropic zone of the lower part of the J0 and upper layers of the J1. This information is useful for fracture design calibration and making recommendations for horizontal well trajectory. Figure 4 shows the fracture profile after calibration by actual fracture height measured in the vertical well and fracture profile after model calibration

Figure 6. Left: Calibrated model of actual fracturing in the standard concept. Modified fracturing design for horizontal barrel with mHRP TIV-anisotropy influence is a key factor in well location and fracture initiation zones choosing. Thus, availability of calibrated geomechanical data along the vertical section is a key factor for production and further optimization. Figure 6 shows hydraulic fracture propagation in the case of initiation in mechanically different conditions. It should be noted that the incorrect location of the wellbore relative to the calibrated geomechanical model can lead not only to the unproductive placement of proppant, but also to the total ineffectiveness of the fracture due to loss of vertical conductivity, as well as to technological complications.