Schlumberger

Technical Paper: Approaching the Technical Limit: Mature Basin Benefits from Influx of Advanced Drilling Rigs/Tool Technology

Society: IADC
Paper Number: 139408
Presentation Date: 2011
 Download: Approaching the Technical Limit: Mature Basin Benefits from Influx of Advanced Drilling Rigs/Tool Technology (0.64 MB PDF) Login | Register

 

Abstract

An operator working a mature field in southern Argentina’s San Jorge Basin wanted to use the latest drilling technologies to establish a new field benchmark.  The basin has been producing hydrocarbons for approximately 100 years, and most operators active in the area were reluctant to apply high-end technology to develop what the industry considered to be marginal reserves. 

In spite of the economic risk, a plan was initiated in Q1 2009 to deploy new automated flexible-drilling rigs in conjunction with high-performance downhole tools designed to efficiently use the rig’s increased hydraulic horsepower capabilities.  Due to hole deviation problems, a reliable yet cost effective vertical drilling system was employed, because it could withstand the application’s extreme flow rates, high weight on bit (WOB), and still deliver the required wellbore trajectory and superior borehole quality.  The deviation control system uses a high-power positive displacement motor (PDM) and proven packed hole bottomhole assembly (BHA) design techniques.

The new tools were run on several wells in the field with outstanding results.  This paper will outline the learning curve and engineering process that led to advanced performance and improvements: new-technology adaptation to the actual and aggressive drilling plans that helped the operator reduce drilling costs, delivery of a high-quality in-gauge wellbore and efficiently achieving the mandated drilling schedule.

Related services and products

 
Request More Information