The ever‐increasing quest to identify, secure, access, and operate oil and gas fields is
continuously expanding to the far corners of the planet, facing extreme conditions toward …

Hole cleaning during directional well drilling is a major concern in the oil patch and must be
monitored and properly controlled during the entire drilling operation. Inadequate drilled …

Automation of the drilling process has been gathering pace over the last 10 years, with
progress made on many fronts: from choke control in managed-pressure-drilling (MPD) …

Well construction is a complex multi-step process that requires decision-making at every
step. These decisions, currently made by humans, are inadvertently influenced by past …

This paper presents an evaluation of various control methods to be used during drilling
operations where an unexpected gas influx occurs. In the event of an unexpected gas influx …

During drilling operations, downhole conditions may deteriorate and lead to unexpected
situations that can result in significant delays. In most cases, warning signs of the …

Hook load is a very important parameter used during drilling operations to control the weight
on bit and to assess possible deteriorations of the downhole conditions such as poor hole …

Mode confusion is an automated system behaving differently than expected and the
operator not being aware of (or not properly understanding) what the system is doing. Mode …

Different clusters of abnormal activities often arise within same temporal domain of drilling
operations. This contrasts with employing simplified scenarios, such as anomaly detection …

During recent years there has been an increased focus on automating drilling operations
and several solutions are in daily use. We describe here results and lessons learned from …