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Chapters
- 00:05Title
- 01:15Overview of Sample Preparation
- 02:54Pre-expansion Flow-through Experiments
- 04:21Expansion Setup and Expansion Procedure
- 06:05Post-expansion Multi-rate Flow-through Experiments
- 07:23Results: Flow-through Studies Using Composite Samples with Class H Cement
- 08:48Conclusion
This article reports on a laboratory scale investigation of an existing field procedure and its adaptation for sealing of leaky wellbores. It consists of mechanical expansion of metal pipe, which results in an improved metal/cement bond, ultimate sealing of hydraulic pathways and prevention of gas leaks caused by the presence of a microannular channel.
