A process for testing a well bore in a hydrocarbon reservoir where the process comprises:
- a. providing a well bore in a hydrocarbon reservoir;
- b. running in the well bore with a wireline and a bottomhole assembly (BHA) consisting of a frac plug, a setting tool, multiple perforating guns and a casing collar locator, with a frac ball (ball check) preinstalled in the frac plug until said BHA reaches a build section of the well;
- c. pumping water into the well at a rate of 5-15 bbl/min (0.79-2.4 m3/min) to drag the BHA to a perforating location in a lateral;
- d. shutting down to obtain an instantaneous shut in pressure (ISIP) and 3 to 5 minutes of shut-in pressure for establishing a pump-down pressure-falloff trend line and a pump-down shut-in pressure;
- e. activating the setting tool to set the frac plug;
- f. moving the wireline up the well to place one or more perforating guns at the perforating location;
- g. pumping at 1-2 bbl/min (0.16-0.32 m3/min) to seat the frac ball in the frac plug, wherein seating said frac ball isolates previously treated intervals and forms a closed wellbore chamber from the frac plug to surface treating lines;
- h. pressuring the wellbore to at least 1000 psi (6.9 MPa) above the pump-down shut-in pressure for a pressure test;
- i. closing a plug valve in the surface treating lines to isolate pumping equipment and optional safety relief valve during this the pressure test;
- j. monitoring pressure for 3 to 5 minutes to check for pressure-tightness of the closed wellbore chamber;
- k. checking for indications of fluid bleed-back and making adjustments if necessary to achieve a leak-tight seal;
- l. maintaining pressure and perforating the perforating location and observing pressure falloff response for 3 to 5 minutes;
- m. evaluating for communication with or isolation from the previously treated intervals;
- n. moving the wireline up the well to locate the BHA away from the perforations;
- o. reopening the plug valve;
- p. injecting into the perforating location at an injection rate of 2 bbl/min (0.32 m3/min) until treating pressure stabilizes or breaks back;
- q. increasing the injection rate to 5-6 bbl/min (0.79-0.95 m3/min), continuing to pump until pressure re-stabilizes;
- r. pumping for at least an additional minute;
- s. shutting down to obtain instantaneous shut in pressure (ISIP) and evaluate pressure falloff response for 3-5 minutes;
- t. repeat steps (j) through (s) until one or more perforating guns have been discharged;
- u. discontinuing injection after perforating is complete;
- v. retrieving the wireline including the BHA and preparing the well for a next perforation location;
- w. repeating steps (b) through (v) until all perforation locations have been completed;
- and
- x. producing hydrocarbons from said treated well bore.