Observations of Induced Fractures Intercepted b...
SKU: GRI-91/0327
Observations of Induced Fractures Intercepted by Mining in the Warrior Basin, Alabama. Rock Creek Methane from Multiple Coal Seams Completion Project
Detailed examination of induced fractures from hydraulic stimulations can provide valuable information for understanding and adjusting computer design and simulation models. Fracture from 13 wells that were intercepted by mining in the Warrior Basin have been inspected.
Summary:
Detailed examination of induced fractures from hydraulic stimulations can provide valuable information for understanding and adjusting computer design and simulation models. Fracture from 13 wells that were intercepted by mining in the Warrior Basin have been inspected. Measurements were made of length, width, height, and orientation of induced fractures exposed by mining. Of the fractures inspected, 11 were from water stimulations, and two were from linear gel stimulations. Photographs were taken to document and allow further examination of underground findings. The examination found that in general the fractures followed the coal face cleat direction; they were vertical and were sandpacked close to the well. Most of the fractures and proppant were present in the parting and roof rock. No horizontal fractures were observed in this study. The results differ significantly from the amount of downward fracture predicted by models. This shows the need for further studies and adjustment of models.
