Williston Basin Operator Increases Drilling Efficiency

Overview

Historically, drill bit design primarily relied on data capture at the surface. The introduction of Cerebro intelligent bit technology gives Halliburton Drill Bits & Services the ability to map the downhole motion of the bit and any associated drilling dysfunctions. We can now use this data to gain a better understanding of the given application and design a more efficient bit for the drilling conditions.

Using the 8¾-inch GTD55RMU Cerebro-enabled bit design, an operator in the Williston Basin (northern U.S. Rockies) achieved optimal engagement of the Cruzer™ Depth-of-Cut Rolling Element through the curve, without sacrificing efficiency. The Shyfter R2 provided required durability while improving lateral efficiency to achieve the required build-rates for the interval.

Improved Drilling Performance

Initial Cerebro tests were conducted, collecting data directly from the tool, which showed that when Cruzers were engaging, the fastest rate of penetration (ROP) was reached, while also minimizing torque. However, the Cruzers were only engaging small percentages of the run. The GTD55RMU Cerebro-enabled bit design incorporated these findings by changing the engagement of the Cruzer. After decreasing the depth of cut (DOC) at which the Cruzer was engaging, results continued in a positive direction; thus, optimizing drilling performance.

Technology Advantages

The Cerebro intelligent bit technology provides the following advantages in tough drilling environments, like the Rockies:

• Continuously captures downhole vibration and motion data
• Captures data as close to the cutting structure as possible
• Increases drilling efficiency and reduces well time
• Achieves higher drilling speeds without vibration limitations