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US 4,306,447 AGranted
Y-Ram tester
AssigneeWells Tools, Inc.
InventorRobert L. Franks, Jr.
Life of this patent
Estimating the term…
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AssigneeWells Tools, Inc.
InventorRobert L. Franks, Jr.
Estimating the term…
A Y-ram tester for the testing of the blowout prevention apparatus of a gas or oil well. There is a well casing, a well casing segment mounted thereon, and a blowout preventer which has a pair of pipe rams and is mounted on the well casing segment. The rams are adapted to tightly seal around the two pipes. A test plug is mounted in the well casing in a manner so that the test plug would not move any further into the well casing. Two pipes extend through the center passage of the blowout preventer to a position past the pair of rams. There is also means for injecting water at high pressure into the cavity formed by the central passage of the blowout preventer below the pair of rams, the central passage of the well casing segment and the central passage of the casing of the well casing above the test plug. The adapter or Y-ram tester includes a cross member, a lower member, which is mounted at a right angle to the cross member, means for attaching the lower member to the test plug, two upper members, each of which is mounted at right angle to the cross member, and means for attaching the upper members to the ends of the two pipes located within the cavity.
An adapter for use in the testing of the blowout prevention apparatus of a gas, oil, water and/or steam well comprised of a cross member, a lower member, which is mounted at about a right angle to the cross member, at least two upper members, each of which is mounted at about a right angle to the cross member, the lower member and at least two upper members lying in a common plane, the lower member having a threaded portion on its extremity away from the cross member, and each of the upper members having an internally threaded hole in its extremity away from the cross member, the threaded hole of each upper member having an axis which parallels or coincides with the axis of the upper member in which the internally threaded hole is located.
In a combination for the testing of the blowout prevention apparatus of a gas, oil, water and/or steam well comprised of a well casing, a well casing segment mounted thereon, a blowout preventer which has a pair of pipe rams, the rams being adapted to tightly seal around at least two pipes, the blowout preventer being mounted on the well casing segment, a test plug mounted in the well casing in a manner so that the test plug will not move any further into the well casing, at least two pipes, matching in number the number of pipes which the pair of rams are adapted to tightly seal around, the two pipes extending through the center passage of the blowout preventer to a position past the pair of rams, and means for injecting high pressure fluid, usually water, into the cavity formed by the central passage of the blowout preventer below the pair of rams, the central passage of the well casing segment and the central passage of the casing of the well casing above the test plub, the improvement which comprises an adapter comprised of a cross member, a lower member, which is mounted at about a right angle to the cross member, means for attaching the lower member to the test plug, at least two upper members, each of which is mounted at about a right angle to the cross member, the number of the upper members matching the number of the pipes, and means for attaching the upper members to the ends of the pipes located within the cavity.
Dependencies are inferred from the claim text.