March 13, 2007


Description

Cementing over 3000 feet of production casing in an air-drilled hole, where a primary productive gas interval is a naturally fractured shale with a fracture gradient as low as 0.3 – 0.4 psi/ft. at the bottom of the well, presents quite a challenge. Historically this challenge had been met with a 12 ppg lightweight silicate cement, but not without limitations.  The compressive strength of the completion slurry in 72 hours measures only 500 – 700 psi, not nearly enough to be seen with the cement bond logging tools most commonly employed. In fact, it is necessary to wait seven (7) days before running a variable density log because that is about the time needed for the cement to develop enough compressive strength and acoustical impedance to be “seen.”  Although this slurry solved one problem, it caused another problem - lost production days due to "waiting on cement" time. Using knowledge of available Portland cements and   compressive strength enhancing agents, a new cement blend was developed that could get higher compressive strengths and better acoustical impedance in a shorter time frame while maintaining the cement density at 12 ppg and slurry and process economics.  Examples of pre and post-solution cement bond logs and economics related to lost days of production over a large drilling program will be presented.

Please register before the deadline, as walk-ins will be seated on a first come-first serve basis.


Featured Speakers

Speaker David J. Mack (2006-7 Distinguished Lecturer)
Advanced Senior Production Engineer Marathon Oil Company David Mack is an Advanced Senior Production Engineer with Marathon Oil Company in Houston, Texas.  He holds a Petroleum Engineer  degree from Colorado School of Mines.  For 27 years he held various research and operational positions with pressure pumping companies in north Texas, ...

Advanced Senior Production Engineer
Marathon Oil Company

David Mack is an Advanced Senior Production Engineer with Marathon Oil Company in Houston, Texas.  He holds a Petroleum Engineer  degree from Colorado School of Mines.  For 27 years he held various research and operational positions with pressure pumping companies in north Texas, the Rocky Mountains, Mid-Continent and Appalachian Basins.  The past 3 years he has worked with Marathon in the Reservoir and Well Performance Group.   He has authored approximately 20 SPE papers and trade journal articles and has served on regional and national SPE technical conference committees and section leadership teams.  He has been issued four United States patents.

Full Description



Organizer

Jason Baihly


Date and Time

Tue, March 13, 2007

11:30 a.m. - 1 p.m.
(GMT-0500) US/Central

Event has ended

If you do not have a full-time job in the oil and gas industry, are a full-time student or Member in Transition (MiT) member, and you do not see a discounted registration fee for students/MiT regarding this event, please contact the GCS manager at spe-gcs@spe.org.


Location

Greenspoint Club

16925 Northchase
Houston, TX 77060