Magnus® RSS and Quad-Combo LWD Technology Exceed Planned ROP by 40%, Save 5 Days’ Rig Time

Deliver an offshore well by drilling the intermediate and production sections ahead of schedule to meet critical customer production targets.
Identify the geological targets in the last 656 ft (200 m) of the 12.25-in. section to set the casing in a precise location in the upper Miocene formation.
Build the inclination from 63° to 84° in the 8.5-in. section to land the well in the target reservoir.

Weatherford Drilling Services recommended a complete geosteering solution with directional drilling and logging-while-drilling (LWD) technology. The solution featured the Magnus rotary steerable system (RSS) based on its capability to deliver the required doglegs in the area, reduce sliding times, and maintain a quality wellbore. The BHA also featured a quad-combo LWD package with the ShockWave sonic tool to avoid the need to drill a pilot hole and perform subsequent wireline logging, typically required in the field to evaluate the reservoir before production drilling.
As part of the solution, the Centro™ well construction optimization platform provided real-time analytics 24 hours a day, 7 days a week and enabled all multidisciplinary teams to work together, analyze data, and make informed decisions in real time. Throughout execution, well placement specialists actively monitored the trajectory and made on-the-fly decisions to stay in the zone of interest with the optimal petrophysical properties.
In the 12.25-in. section, an at-bit gamma ray sensor helped to characterize the formation while drilling and set the casing at the desired depth.
In the 8.5-in. section, high-quality LWD sensors acquired deep resistivity, density, porosity and sonic data for evaluating the reservoir in real time and geosteering to avoid oil-water contact.
The Magnus RSS achieved an actual rate of penetration (ROP) of 84.0 ft/hr (25.6 m/hr) compared to the planned 59.1 ft/hr (18 m/hr).

Using a geosteering solution, including the Magnus RSS and quad-combo LWD package, enabled the customer to achieve the objectives without nonproductive time (NPT) and deliver the well according to the timeframe.
The RSS improved the ROP by 40%, which saved 2 days of tig time, and the quad-combo LWD package eliminated the need for a pilot well program with associated wireline logging, which saved 3 days of rig time. In total, RSS and LWD technology saved 5 days of rig time valued at US $450,000.
The solution provided quality data to keep the well trajectory within 1.5 ft (0.45 m) of the geological target.

Details

Location

Mexico

Well Type

Offshore, horizontal

Hole Size And Angle

Temperature

248°F (120°C)

Depth In

11,991 ft (3,655 m)

Total Depth

14,665 ft (4,470 m)

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Magnus® RSS and Quad-Combo LWD Technology