2012 Ultra-Deepwater

Analysis of Best Practices for Deepwater Cementing in Oil Based Mud (OBM) and Synthetic Based Mud (SBM)

Subcontractor: CSI Technologies, LLC

Principal Investigator: Jeff Watters
Project Number Project Status
12121-6503-01 Active
RPSEA Project Manager: Rob Vagnetti
Participants
ConocoPhillips; Princeton University
Period of Performance
Start Date End Date
June 25, 2014 September 30, 2016
Total Project Cost RPSEA Share Cost Share
$2,903,470.00 $1,789,768.00 $1,084,667.00
Project Objectives

The objectives of this project are to develop fundamental knowledge of mud-cement compatibility issues related specifically to deepwater cementing, to quantify risks associated with cementing in OBM/SBM and to develop best practices and derive recommendations in order to reduce the recognized risks. This study will analyze the relationship between temperature, pressure, cement bond, degree of mud removal and its effect on zonal isolation in complex well architecture. Fluids under laboratory investigation will include typical commercially available designs of cement slurries, SBM, OBM, and spacers with a focus on micro-particulate fluids and other new technologies. Environmental benefits of a successful project include a decrease in contamination, the formation of channels, and improved bonding of cement. Long-term wellbore integrity will be improved and environmental and safety issues such as leaks from the formation and Sustained Casing Pressure (SCP) will be mitigated. The enhanced integrity of the cement will not only save operators from costly remedial work and additional rig time, but also increase productivity as well as reduce environmental and safety risks.

 

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RPSEA Project Fact Sheet: Download 280.8 KB
Reports
File Type Date
Analysis of Best Practices for Deepwater Cementing in Oil Based Mud (OBM) and Synthetic Based Mud (SBM) ( 11.8 MB ) Phase 1 Interim Report 06/15
Presentations
Title: Fundamental Understanding of Non-Aqueous Drilling Fluids Leads to Optimizing Seal Integrity while Reducing Design Time and Cost - 04/16 ( 334.3 KB )
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