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<br />5) Flow rates should be measured with a calibrated turbine flowmeter. <br />6) Record injection rates using a chart recorder or a strip chart. <br />7) Measure pressures with a down hole pressure bomb. <br />8) Measure and record injection pressures with a gauge or recorder (for immediate test <br />results). <br />9) A plot of injection rates and the corresponding stabilized pressure values should be <br />graphically represented as a constant slope straight line to a point at which the formation <br />fracture, or "breakdown", pressure is exceeded. The slope of this subsequent straight line <br />should be less than that of the before-fracture straight line. <br />10) If the formation fracture pressure has definitely been exceeded, evidenced by at least two <br />injection rate-pressure combinations greater than the breakdown pressure, the injection <br />pump should be stopped, the line valve closed, and the pressure is allowed to bleed-off into <br />the injection formation. There will occur a significant instantaneous pressure drop <br />(Instantaneous Shut-in Pressure or ISIP), after which the pressure values begin to level out. <br />This ISIP value must be read and recorded. The ISIP obtained in this manner may be <br />considered to be the minimum pressure required to hold open a fracture in this formation at <br />this well. <br />11) Once the ISIP is obtained, the SRT is concluded. <br />12) In the event that the breakdown pressure was not obtained at the maximum test injection <br />pressure utilized, the test results may indicate that the formation is accepting fluids without <br />fracturing. <br />H:\UIC\RBUIC-Guidance\INFG-SYepRateTest.wpd January 12, 7999 <br />PriMOd on Raeydsd Popr <br />2 <br />