Drilling-System Optimization Leads to Expedited Wells Delivery

The authors write in the complete paper that simple changes in drillstring design can lead to huge savings in a climate requiring a constant push for reduction in well times and well costs and in improved well delivery. The complete paper explains the process that was followed before implementation of this solution.

Introduction

To access hydrocarbon reserves in a deep gas field, directional drilling through highly interbedded and abrasive formations was necessary. Designing a fit-for-purpose drilling system for optimal performance was critical. The reservoir drainage strategy required that the development wells be drilled directionally to attain a horizontal displacement of 1,500–2,500 ft at the 7-in.