Ultra-large diameter Polycrystalline Diamond Compact (PDC) bit drilling is a fast growing cost-effective solution in high-tier deepwater drilling operations in the U.S. Gulf of Mexico (GOM) where salt is encountered in the shallow part of the wellbore.  Conventional design called for roller cone (RC) (IADC Code 111-115) drill bits on positive displacement motors (PDM) in …

The National Commission on the Deepwater Horizon Oil Spill and Offshore Drilling set out the need for sweeping reforms that would accomplish no less than a fundamental transformation of the oil and gas industry’s safety culture.  In response to this tragic event, the Society of Petroleum Engineers organized a Summit in July 2012 to discuss …

This presentation will focus on completion diagnostic trends in the Marcellus Shale.  Data visualizations and completion statistics will provide insights into the key questions in the optimization process specifically related to wellbore trajectory, near-wellbore proppant placement and fracture stage spacing.  Lessons learned from hydrocarbon tracing in the Appalachian Basin will also be discussed.  

Case-based-reasoning (CBR) is another soft computing technology developed to deal with uncertainty, approximate reasoning and exploit knowledge domain. Case-based reasoning, also known as computer reasoning by analogy, is a simple and practical technique that solves new problems by comparing them to ones that have already been solved in the past, thus saving time and money. …