Modernization of Tubular Collapse Performance Properties

The purpose of the project was to improve the accuracy of casing collapse performance properties. This improvement may allow an opportunity to substantially reduce tubular costs, because the margins of actual collapse performance versus API ratings have been found to be as high as 30-40%. The JIP conducted physical testing on industry-wide sampling of API and proprietary casing grades and reviewed mill production techniques for both API and proprietary grades of casing. Data was analyzed so that participating operators may be able to reduce tubular costs. Database was provided to API and ISO for future standardization activity. The JIP was completed in October 2002.