Underbalanced Offshore Coiled Tubing Drilling in Tight Sandstone Case Study: Part Two

23rd January 2019                         COILED TUBING DRILLING                          

Author: Guest Blog by Naceredine Fares

In a recent blog post we looked at how Underbalanced Coiled Tubing Drilling (UBCTD) has the potential to offer a more than viable method of extraction from tight sandstone formations.

 

To recap, the results of the project we presented in the post were impressive. The production recorded on the preliminary post well flow test showed a production of three times the target flow. (A summary of this UBCTD project can be found here.)

 

What is particularly interesting to note is that the project did not run smoothly and resulted in unexpected additional costs. But despite these challenges and costs, UBCTD still remained an impressively . . . 

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