Project Number | 276 |
Date of Summary | May 01, 2000 |
Subject | Mitigating the Problem of Gas Migration After Primary Cementing |
Performing Activity | Westport Technology Center International |
Principal Investigator | Mr. Cyrus Irani |
Contracting Agency | Minerals Management Service |
Estimated Completion | December 1, 1999 |
Description | This is a Joint
Industry Project (JIP). Two tasks were set for the project:
Fluids of 1 cP and higher viscosity are commercially available, and the sponsors will pick three of them for screening. The second group of fluids to be evaluated will be 0.5 cP and lower systems involving polymers dissolved in light hydrocarbons. Westport will develop an ethane and propane based system for testing. A bundle of capillary tubes of different diameters will be used to screen the pumpability of the different fluids through simulated fractures. |
Progress | Westport has experienced problems with placing enough of its low viscosity polymer plugging system into the test microfractures. The commercial higher viscosity systems are delivering more plugging agent than the low viscosity formulations. Westport will therefore begin testing higher viscosity polymer systems and taking advantage of the fact that the polymer system has zero set time (it is activated by pressure drop). |
Reports | |
AA (58
pages)
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Irani, Cyrus A. Mitigating the Problem of Gas Migration Final Report CEA-96, Westport Technology Center International. June 26, 2000. |
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