Abstract: An orienting intercarrier assembly is provided for oriented interconnection and locking of tubing conveyed perforating guns. The apparatus incorporates upper and lower intermediate adapter sections including tapered guide surfaces that correct for axial misalignment as the adapters are stabbed into sealed assembly. The adapters are also provided with alignment pins and rotational alignment guide surfaces that enable the adapters of the intercarrier assembly to be properly assembled and locked only when precise rotational orientation therebetween has been established. The apparatus also incorporates a locking mechanism enabling the adapters to be securely locked in assembly and to be retained against inadvertent disassembly.

Abstract: A pressure containing wireline safety mechanism for wireline assemblies incorporates a tubular body for attachment between the lubricators and stuffing box of the wireline assembly. An inner housing is releasably retained within the tubular body and is provided with a wireline cutter to cut the wireline and release a wireline tool string that is stuck in a position blocking closure of the wellhead saftey valves and the wireline blowout preventor. The inner housing also incorporates a valve mechanism that automatically forms a pressure containing seal after the wireline has been cut to thus permit the stuffing box to be removed and another wireline assembly installed above the first wireline assembly for removing the inner housing and releasing the stuck wireline tool string.