Full-scale tests help improve reliability of DST tools

Paul Ringgenberg Halliburton Energy Services Dallas John C. Self Statoil Stavanger, Norway A joint-industry project set up procedures and full scale tests to determine the reliability and integrity of drill stem test (DST) tools for use in difficult high pressure, high temperature wells. These DST tool tests helped determine changes needed to address reliability in high pressure, high temperature (HPHT) conditions and has demonstrated that DST tools could maintain integrity in this type of environment. The reliability of a drill stem test can be increased by planning and cooperating with other operators and service companies. Operators can then share information about ...

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