Pipe string clamping jaw and pipe string trolley

Abstract

The embodiment of the invention discloses a pipe string clamping jaw and a pipe string trolley. The pipe string clamping jaw comprises: a fixing seat; two claw poles, wherein one end of each claw pole is provided with a first supporting foot and a second supporting foot, the first supporting foot and the fixed seat are hinged at a first hinge point, the two claw poles are oppositely arranged and can be in an opening state or a holding state relative to the fixed seat; an oil cylinder, wherein the two ends of the oil cylinder are hinged to the second supporting feet of the two claw poles at second hinge points respectively, and the oil cylinder can drive the two claw poles to be switched between the opening state and the holding state. The pipe string clamping jaw and the pipe string trolley have the advantage that a hydraulic pipeline can be simplified.

Description

technical field [0001] The present application relates to the technical field of oil and gas exploitation, in particular to a pipe string claw and a pipe string vehicle. Background technique [0002] The pipe string, or blowout preventer assembly, is generally installed at the oil wellhead, the coiled tubing injector is installed on the top of the blowout preventer assembly, and the coiled tubing connected to the coiled tubing injector passes through the pipe string and extends from the oil wellhead into the well . [0003] In order to facilitate the transportation of pipe strings and the delivery of operating tools to the coiled tubing at the well site, a pipe string vehicle is provided in the related art. The pipe string vehicle is provided with a truss body, and guide rails are installed on the truss body. The seat is slidably connected with the guide rail. When transporting pipe strings, the truss body leans against the body of the pipe string truck, and the truss body...

AI Technical Summary

Problems solved by technology

[0004] However, since most of the current pipe strings weigh more than a few tons, the pipe strings tend to move forward under the action of inertia when the pipe string trucks brake suddenly, drive downhill, or turn around a curve during transportation; therefore, the pipe strings The string claws usually use hydraulic pressure to hold the pipe string tightly, but the current pipe string claws have the disadvantages of not clamping tightly and complicating the hydraulic pipeline

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