Video TrackMaster OH-C Openhole Whipstock and Cementing System
Provides sidetracking assurance.
For contingency planning of openhole sidetrack applications requiring isolation of the original borehole with a cement plug below the kickoff point, the TrackMaster OH-C system circumvents obstacles that are encountered with conventional cement plug sidetracking.
A bit-friendly ramp provides a precise kickoff point and lowers bending stresses in the drilling assembly. The system also provides isolation of the pilot hole if required.
Traditional cement plug sidetracking involves pumping cement to provide the kickoff plug, waiting for the cement to cure, and then drilling through the cement. A number of downhole factors affect the success of the cement plug setting operation, and multiple attempts are frequently required before a successful plug is obtained.
With the TrackMaster OH-C system, setting the whipstock and the cementing operation are accomplished in a single trip, saving the costs of extra trip time, additional cement plugs, loss of drilling days, and reconfiguration of the drilling trajectory. After setting, any drill bit and BHA configuration can be tripped in for kickoff from the whipstock.
For applications requiring isolation of the original borehole with a cement plug below the kickoff point, a tailpipe string is tripped in below the whipstock anchor. The tailpipe allows selective placement and length of the cement plug below the whipstock. It also provides cement plug integrity by reducing contamination to the plug that is caused by removing the drillstring.
Equion Energìa successfully performs kickoff in single trip, saving drilling time versus two previous failed attempts with conventional cement plug.
Whipstock allows well reentry despite compromised cement plug.
Circumvent cement plug obstacles. Achieve sidetracking assurance.
TrackMaster OH-C system reduces time for openhole sidetracking in Eagle Ford shale.