CPC E21B 49/008 (2013.01) [E21B 49/087 (2013.01); E21B 47/06 (2013.01)] | 20 Claims |
1. A method for an injection well having an injection wellhead, the method comprising:
installing a measurement device on the injection wellhead, wherein the measurement device is configured to measure a pressure of the injection well at the injection wellhead;
injecting a fluid into the injection well at a plurality of injection rates using a computer processor;
measuring an injection bottom hole pressure at each injection rate to determine a plurality of injection bottom hole pressures using the computer processor, wherein the injection bottom hole pressure at each injection rate is measured using a density of a fluid in the injection well, a depth of the injection well, a pressure loss due to friction, and the pressure of the injection well at the injection wellhead at each injection rate;
determining a relationship between the plurality of injection rates and the plurality of injection bottom hole pressures using the computer processor; and
determining an injectivity index of the injection well using the relationship and the computer processor.
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