Seamless Execution of Openhole Sidetracks Dual-Telemetry MWD Powers Fast, Accurate Multilateral Drilling in Clearwater Formation

Drill multilateral legs in the Clearwater formation, including openhole sidetracks, using a dual-telemetry MWD system.

The Weatherford EMx dual-telemetry MWD tool and the HyperLine™ drilling motor combination enabled the operator to drill a 6-leg multilateral well with record distance achieved in 12 hr.
Selected for its capability to drill directionally in multilayer formations, the HyperLine motor doubles the operating torque and power output of standard motors.
All legs were completed in EM with no need to use the pulse telemetry dual mode.
All legs were drilled using WellPlaced Survey Management (IFR2 + MSA + SAG) technology.
The single lateral bottomhole assembly (BHA) drilled 13,807 m (45,298 ft) in just 73.75 drilling hours.
The directional team maintained the trajectory within the specified target, achieving an average ROP of 168.4 m (552.4 ft) per hour over the 12-hour shift.

The Weatherford solution enabled the operator to maintain the drilling according to the well plan.
The drilling technology increased the ROP over other drilling tools from earlier jobs.

Details

Location

Canada

Well Type

Multilateral

Formation

Clearwater

Hole Size and Angle

159 mm, 90°

Length Drilled

13,807 m (45,298 ft)

Average ROP Rotation

175.21 m/hr (574.83 ft/hr)

Average % Slide

8.08%

Hours

Motor: 130.75
Drilling: 73.75
Below Rotary: 169 hr

Measured Depth

1,500 to 2,524 m (4,921 to 8,280 ft) per leg

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Seamless Execution of Openhole Sidetracks