Technical Session 5 – Presentation of SPE papers

Well Technology: Drilling Technology

Why recommended:  A technology to watch for long reach drilling under special circumstances where rig capacities are limited or costs are critical to the project, e.g. platforms, marginal fields

  • SPE 124891:  Reelwell Drilling Method – A Unique Combination of MPD and Liner Drilling 

O.Vestavik, Reelwell; S.Kerr, StatoilHydro; S.Brown, Shell

New technology on extended and UBD drilling developed by Reelwell with funding by Shell and Statoil. Good concept with new features: -
  • Dual strings which allows reverse circulation drilling
  • Downhole packer which allows hydraulic pressure to supply weight on bit
  • Drive sub for the top drive to rotate both strings
 
This looks a very good possibility for the future of long reach slim profile wellbores.  One to watch.  Check their website: - http://www.reelwell.no/reelwell/public/openIndex?ARTICLE_ID=100
 
  • SPE 124670:  Wellbore Instability in Forties:  Diagnosis of Root Causes for Improved Drilling Performance

B.McIntyre & R.Dixon, Apache North Sea; F.Muhamed, T.O’Rourke, C.Liu, S.A. Islam, & A.Donald, Schlumberger

Why Recommended: 

Shows new ways of presenting well data. Indicates how to approach planning for complex, difficult wells in old fields.

This paper had some interesting graphical presentations of hole problems.  The study was undertaken by Schlumberger on behalf of Apache.  The presentation was by a Schlumberger person.  They used Schlumberger software tools for their analysis.

Their analysis seems to have resulted in a better drilling process for Apache in the Forties Field which they bought from BP.  A question from the floor asked how performance had been since the paper was published but the reply was not clear to this writer.

The other way to do this study would have been to form a multi-disciplinary team of consultants and service providers (from more than one company).

That would seem, from a distance, to have provided a more well-rounded study.

  • SPE 123801:  The Implementation of a Drilling & Completions Advanced Collaborative Environment – Taking Advantage of Change

Why Recommended:

It gives a good example of implementing full onshore data monitoring of a rig operation.  It gives insight for development the process of bringing the well construction process on the rig closer to the resources available onshore in real time.

S.J. Sawarin, S.Goodwon, Adeady, C.Critchley, and B.Swanson, BP

Outsourced to a service provider. Coincided with move into new offices.  Initial thought was 24 x 7 monitoring.  Now only 0900 to 1700 hrs. 
It was awkward when the service company was located away from BP.  It was better for them to be on site.

The layout included “coffee shop” and meeting rooms where engineers could go to do quiet work.

There were several rounds of consultation with the offshore personnel. The Basis of Design consisted of 5 areas, a 6th being added later: -
  1. People
  2. Process
  3. Technology
  4. Physical environment
  5. Organisation
  6. Value captur

One objective was to try to reduce POB (persons on board). BP want only people with spanners in their hands to be offshore.  Otherwise, all people should be in town.

One of the benefits was to be able to run tactical scenarios for the well planning.

BP experienced a two quartile improvement in their performance (didn’t say if it was from 4th to 2nd or 3rd to 1st).

Risk assessments – there were no changes to risk assessments except that the data on which they were based was better.