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MexicoFocus - CHOperational Efficiency

CBL successfully descended a 2,500 m long tangent at 67° in Mexico

The ultra-low drag centralization device deployed the toolstring in a 7” casing

In a world first, an operator in Mexico ran a Cement Evaluation toolstring on Petromac’s ultra-low drag centralization devices (CA7) in a 7” casing. This eliminated the drag inherent to traditional methods and enabled the CBL tool to descend freely along a 2,500m tangent with 67° deviation.

The tool entered the 7” casing (TOL), at 67° deviation, without any difficulties.

A measured tool drag coefficient of only 0.04 means that descents to >80° is achievable.

The combination of this centralization method with minimal tool drag saved the operator about 2.5 days of rig time (offshore) by eliminating two pipe conveyed runs (TPL) and all the associated risks.

Fig.1. Well Trajectory
Fig. 1Well Trajectory
CBL successfully descended a 2,500 m long tangent at 67° in Mexico — figure 2
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