Abstract: A blow out preventor (BOP) stump test apparatus includes: a main body including an outer surface, a bore, and a mounting structure for releasably and rigidly connecting the main body to a BOP to be tested; and a test bar including a position indicator slidably retained in the bore and capable of moving up and down in the bore between an upper position and a lower position, where the positional indicator indicates when the test bar moves up in the bore during a BOP stump test.

Abstract: An annular fracturing cleanout apparatus includes: a main section including an upper connection end, a lower connection end and a main bore extending through the main section from the upper connection end to the lower connection end; a lateral section connected in a wye configuration with the main section, the lateral section defining a lateral bore therein, the lateral bore opening at an upper end of the lateral section and converging at a lower end with the main bore; and a bore control mechanism for the bore in the lateral section. A wellbore stack configuration includes the annular fracturing cleanout apparatus coupled above a fracturing wellhead assembly and below a blow out preventer assembly.

Abstract: A blow out preventor (BOP) stump test apparatus includes: a main body including an outer surface, a bore, and a mounting structure for releasably and rigidly connecting the main body to a BOP to be tested; and a test bar including a position indicator slidably retained in the bore and capable of moving up and down in the bore between an upper position and a lower position, where the positional indicator indicates when the test bar moves up in the bore during a BOP stump test.