TY  - SER
AU  - Weiss,Mike W.
AU  - McLennan,John
AU  - McLennan,John
TI  - Underbalanced operations:Available search/training opportunities: Drillingat BHPs less than pore pressure offers significant advantages and economic benefitsin certain formations. Here's how Gas Research Institute (GRI) has been supporting underbalanced operations in applications where they can reduce drilling/ completion costs and improve productivity
KW  - Perforación bajo balance
ER  -