| 摘要 |
A multi-gage blowout preventor (BOP) test tool (10) for testing different size ram and annular BOP's in one trip has an outer test tube assembly (11) and an inner tube assembly (70) connected in telescoping relation. The exterior of outer tube has a plurality of pipe gage diameters corresponding to different drill pipe sizes. The bottom end of the inner tube assembly is secured to a bottom sub (58) connected to a test plug (P) and tail pipe assembly (T), with tool lowering through riser pipe and BOP stack to set such test plug into wellhead (W). BOPs are tested against a first set of the pipe gage diameters (23A-23E) with the tool in its collapsed condition, and then the outer tube assembly is uncoupled from bottom sub anD lifted to its extended position such that another set of the pipe gage diameters are axially positioned within the BOP stack for further testing against same BOPs.
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