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Collision Avoidance and Well Interceptions – “Hits and Misses”

6 – 8 November 2013

Denver, Colorado | The Brown Palace Hotel & Spa

Technical Agenda

wednesday, 6 November, 0900-1000, 1030-1200      

Session I: Survey Database Integrity

Chairs: John de Wardt, De Wardt and Company; Carol Mann, Dynamic Graphics, Inc.

Managing wellbore position survey data is a critical activity with significant consequences if mishandled. As the process for managing survey data has evolved greatly over the past 30 years, directional survey database specialists will present current best practices. A panel session will follow for participants to gain the maximum understanding.  Topics covered will include:

  • Legal requirements of an operator
  • Dealing with older data
  • Threats to the integrity of existing data
  • Coping with change – switching databases, vendors, software, and transferring data after a company sale

wednesday, 6 November, 1300-1500, 1530-1700      

Session II: Collision Avoidance Management

Chairs: Pete Clark, Chevron; Steve Mullin, Gyrodata Inc.

Participants will learn about the factors affecting the positional accuracy of a well path, and how estimates of position uncertainty are used to avoid well collisions and manage well intersections. The session includes a practical exercise on designing a survey program that achieves a well’s placement objectives. Different methods for calculating collision risk, and how these are often incorporated into an operational management system will be discussed. The use of magnetic ranging for collision avoidance will also be presented, reinforced with a short practical exercise.

Thursday, 7 November, 0800-0930, 1000-1130     

Session III: Practical Directional Drilling

Chairs: William Allen, BP; Benny Poedjono, Schlumberger

In this session visualization tools will be presented along with the importance of a robust process management system for safety, consistency in performance, and workable contingencies. Drilling challenges will be highlighted, specifically well position versus well requirements. The session content begins at the point after the transfer of the drilling program to the directional driller. How drilling constraints, execution methods, and tools are combined to drill the well safely and efficiently will be reviewed. Focus will be on the importance of effective communication and execution performance. Participants will gain familiarity with various tools that enable successful well placement.

Thursday, 7 november 1300-1530, 1600-1730

Session IV: Relief Well Design

Chairs: Angus Jamieson, University of the Highlands and Islands; Steve Grindrod, Copsegrove Developments Ltd.

Please bring your laptops, fully charged, to this session.

Although every relief well is unique, this session gives an overview of issues that should be considered when planning and executing a relief well. Participants will be able to experience some of the problems in a “relief well challenge” by using a drilling simulator to drill a relief well to the first ranging point followed by a ranging and steering exercise as the interception point is approached.

friday, 8 November, 0800-0930, 1000-1200    

Session V: Interception Techniques

Chairs: Robert Wylie, National Oilwell Varco; Ben Hawkinson, Scientific Driling International

Commercially available techniques for intercepting wellbores will be presented, along with their applications. These techniques include both passive and active ranging systems that might involve current injection or deployment of rotating magnets.

Interception applications include well intersections such as relief wells, coal bed methane drilling, wellbore re-entries for remediation, enhanced production, or plug and abandon operations, as well as applications where it is desired to maintain separation over a distance, such as SAGD well twinning.

Participants will gain practical knowledge by working in small groups to choose techniques applicable to different case studies.