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Scoop-Stack Playbook 2017

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SCOOP/STACK: TECHNOLOGY UGcenter.com | September 2017 | 35 equivalent with plenty of setback space as longer laterals are explored. Of course, the two areas in the burgeoning Oklahoma oil play are not exactly the same. Scoop wells are a little bit deeper, traditionally anywhere from 22,000 to 28,000 measured feet. As you move northeast into the Stack, they get a little shallower—16,000 to 20,000 measured feet. It can be a tough slog in either area compared to the Delaware Basin of West Texas, for example. "In general it is more diffi cult because of the longer wells, so we see 60 to75 days or more per well in the Scoop, and in the Stack we see about 45 days per well," said Todd Fox, Nabors vice president of operational management for the southern U.S. "The wells tend to be longer and typically require more trips. The bits aren't lasting as long. We looked at the Stack wells and, in some cases, have seen as many as 50 trips, spending approximately 22% of the well tripping, 50% drilling." By integrating downhole measurements with surface equipment into AC rig designs and with an extensive portfolio of performance optimization software and wellbore placement solutions, Nabors can help take on these complex wellbores and help reduce trips and days to drill and, ultimately, cost. That's where Nabors' new RigWatch Navigator software comes in. Currently being piloted in North Dakota, the software is a directional drilling guid- ance system that uses analytics to solve the most signifi cant problem associated with directional drilling—to be able to consistently follow a well path, stay within the targets and repeat the pro- cess in a consistent and predictable fashion across multiple wells. Following this pilot program, the system will soon be a commercial offering. Nabors already offers other software packages as part of its drilling services. The company's Rig- telligent operating system is deployed across most of its fl eet, enabling the easy application of drill- ing optimization software. For example, ROCKit software increases the ROP by rocking pipe and delivering ideal weight to the bit, according to the company. The soon-to-be-released ROCKit Pilot system will enable automated slide control and toolface steering. "We're still implementing our REVit software to mitigate stick/slip and whirl on the rig," Fox said. "So our software offering is an integral part of the package and is a desired capability we see through operator requests." Another move by Nabors that may eventually lead to lower cost in the Scoop/Stack is the addi- tion of its quads rigs to the fl eet. The fi rst two quads were expected to be working in South Texas by the end of July. Nabors has added a section to its mast, so instead of a 93-ft stand, there will be a roughly 120-ft stand for drillpipe. "That will optimize tripping effi ciency sub- stantially," Fox said. "We see this technology very suitable for the Scoop/Stack once it is fi eld tested in South Texas. We should have some operational results by third-quarter 2017 on the rig." According to the driller, all 53 of its current PACE-X800 rigs are eligible to be retrofi tted with the quads package. ■

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