PETE 1010 Chapter : Drill Stem
Document Summary
A drill stem test is a procedure in which the drill pipe is lowered into the naked hole or the casing and is used to extract a sample of fluid from the formation. This sample is then tested and used to determine the productivity, rate of production, and types of fluid in the formation. To avoid damaging the hole or the formation, packers are inserted along with the drill pipe to create a barrier. A drill stem test is a temporary completion of the well where a certain section of the mud hole can be isolated and relieved of pressure. A basic tool set contains a packer and a tester valve to control the flow of substances. A drill stem test consists of a rubber packer and a tester valve that controls substance flow. These tools are used in the drill hole to draw an oil sample.
