Industry Article: Digital Solutions Guide Path to Better Accuracy in Directional Drilling

Service providers also advancing rotary steerable systems to drill more reliably in harsh environments, lower cost of operations

Publication: Drilling Contractor
Publication Date: 03/01/2018

by Eva Vigh, Editorial Coordinator

Industry Article: Digital Solutions Guide Path to Better Accuracy in Directional Drilling

The abbl service leverages real-time downhole and surface data to recommend steering instructions to guide the bit along the well plan.

In March 2018, Schlumberger experts Ginger Hilldebrand and Juan Restrepo highlighted the important impact that the abbl drilling operations advisor service and the PowerDrive Xcel RSS can have on directorial drilling operations to the Drilling Contractor’s Eva Vigh.

The abbl service increases drilling efficiency while reducing risks and associated NPT—yielding the best cost per “a bbl” of oil. Situational awareness and advisory capabilities are provided to personnel in real time in the context of current activities. The abbl service calculates the safe operating envelope for drilling operations and provides guidance to the drilling crew so that they can operate at the top end of the safe operating envelope.

Industry Article: Digital Solutions Guide Path to Better Accuracy in Directional Drilling

The PowerDrive RSS provides a redundant inertial directional control that can be toggled with conventional control modes via downlink.

One of the things Hilldebrand reinforces in the article is the fact that “the abbl directional advisor is becoming increasingly sophisticated as it evolves. Initially the service possessed learned and forecasted sliding tendencies. During the next phase, rotary tendency detection was added, and later rotary tendency forecasting capabilities were included.”

The PowerDrive Xcel RSS was designed for use in high-profile directional drilling operations. In contrast with many RSS units, which rely on a magnetic and gravity field measurement for steering control in areas with high magnetic interference, such as drilling out of a whipstock window and close to offset wells or ferrous formations, the PowerDrive Xcel RSS provides inertial directional control in deviated sections.

In the article, Restrepo confirms that “the tool can be configured to maximize the curvature delivery in dogleg severity assurance applications or provide tighter control in long tangent sections. In other words, the optimal tool configuration is selected to match the directional needs, allowing both higher dogleg severities and smoother well profiles.”

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