www.pdgm.com The Challenge Nexen, a Canada-based, global energy company, was experiencing difficulties with the placement of horizontal wells for Steam-Assisted Gravity Drainage (SAGD) in heavy oil sand formations. Lateral and vertical heterogeneities were not properly accounted for in their subsurface models. This resulted in uncertainty in the well planning process. With the cost of a well pair being in the $1M to $3M range, oil sand ope

Join for free to read