| 摘要 |
An apparatus for guiding wireline into a well bore comprising an insert bowl, the insert bowl having a substantially vertical groove formed in an interior surface thereof. A rotation means is preferably provided on the insert bowl, the rotation means configured and positioned to rotate against a wireline and maintain the wireline substantially in the groove when the insert bowl is positioned in a rotary table of a drilling platform, to thereby prevent damage to the wireline during wireline and drilling operations. The rotation means preferably comprises a support member and a wheel rotatably disposed in the support member, the support member being attached to a top of the insert bowl above the groove. The wheel is preferably configured as a sheave having a concave rim. The support member further preferably comprises a first block member positioned substantially along one side of the groove, a second block member positioned substantially along an opposite side of the groove, and an axle shaft passing between the first and second block members, the wheel being rotatably disposed on the axle shaft. In a preferred embodiment, the rotation means may be readily dismantled after use for inspection and maintenance.
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