November 2014
Arrow 05/11/2014 November Luncheon - The Challenges of Drilling a 7km Offshore Borehole to Penetrate a Seismically Active Subduction Zone

The Integrated Ocean Drilling Program (IODP) has embarked on an ambitious deep exploration project to drill a scientific borehole into the mega-splay of the Nankai Trough Subduction Zone located ~450 km SW of Tokyo, Japan.  This international project (NanTroSEIZE) is the 1st attempt to drill, test, sample and instrument an active subduction plate boundary capable of generating M8+ earthquakes.  The scientific objectives are to understand the physics of subduction earthquakes capable of generating massive tsunamis. 

Twelve transect sites have been drilled across the trench axis, primarily for sampling, establishing a regional framework of observations and commissioning many wells for in-situ real-time monitoring. Several expeditions at one of these sites have occurred with the intent to drill a 7km vertical hole that intersects the stressed fault-splay.  Expedition 348, ended in Jan 2014, after coming within 2.2 km of the mega-splay as planned.

We present a geomechanical postmortem of Exp 348 to explain the NPT encountered while drilling in this harsh environment and illustrate the process of using LWD and engineering information to design a forward well plan that delivers the borehole in a condition suitable for scientific observations in this all-important international project.


December 2014
Arrow 04/12/2014 Well Testing Perspectives (SPE Master Class)

Every discipline from Subsurface and Facilities through Drilling & Completion have shared interests in well test operations. However, owing to their different roles and the nature of their involvement there are aspects of the well test where their interest may not be aligned and these differences often lead to miscommunicaiton and conflict. Nick Last & Paul Nardone will explore this theme in a full day session intended to demonstrate how this comes about and discuss ways in which to prevent or resolve conflicting interests.

08:00 – 08:15      Overview & Introductions

Well test Perspectives from
08:45 – 10:30      facilities & drilling.
10:45 – 12:00      Subsurface.

12:00 – 12:30      Lunch break

Facility Discussions
12:30 – 13:30      Completions Flowback
13:45 – 14:45      Value of information
15:00 - 16:00       Flaring
16:00 – 16:30      Wrap up session

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