Oil drill pipe elevator device
A technology for oil drill pipes and elevators, which is applied in the direction of drill pipes, drill pipes, drilling equipment, etc., and can solve problems such as lug plate structure and centralizer connection column slippage, shorten construction time, solve connection slippage, and reduce costs Effect
Active Publication Date: 2016-11-30
JIANGSU TENGLONG PETROCHEM MACHINERY
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Problems solved by technology
[0006] The purpose of the present invention is to provide an elevator device for oil drill pipes. The invention changes the lug structure of the elevator device, which can solve the problem of slipping between the lug structure and the connecting column of the centralizer
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Embodiment 1
[0018] Such as Figure 1-Figure 2 shown
[0019] The oil drill pipe elevator device includes the drill pipe elevator body, and the rod elevator body is provided with 2 centralizer connecting devices, and each centralizer connecting device is mainly connected by 2 centralizers installed on the outer surface of the elevator body The ear plate 7 and the chain structure arranged on the two centralizer connecting ear plates 7 form a cavity for clamping the centralizer connecting column 6 between the chain structure and the two centralizer connecting ear plates 7. The connecting column 6 of the device is inserted into the cavity, wherein the chain structure includes a plurality of chain shafts 8 whose axes are parallel to each other, and a chain connecting plate 9 is connected between two adjacent chain shafts 8, wherein the two chain shafts 8 at both ends of the chain structure They are respectively connected to the centralizer connecting ear plate 7, the chain rotating shaft 8 ru...
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The invention discloses an elevator device for oil drill pipes, which comprises a drill pipe elevator body, two centralizer connecting devices are arranged on the rod elevator body, and each centralizer connecting device is mainly composed of two installed on the outer surface of the elevator body The centralizer connecting ear plate and the chain structure arranged between the two centralizer connecting ear plates form a cavity for clamping the centralizer connecting column between the chain structure and the two centralizer connecting ear plates. The connecting column of the device is inserted into the cavity. The chain structure includes a plurality of chain shafts whose axes are parallel to each other. A chain connecting plate is connected between two adjacent chain shafts. The two chain shafts at both ends of the chain structure are respectively connected to the centralizer. On the connecting lug plate, the chain rotating shaft runs through the connecting ear plate of the centralizer, and the axis of the chain rotating shaft is parallel to the axis of the connecting column of the centralizer. The problem of slippage in the connection between the ear plate structure and the connecting column of the centralizer can be solved.
Description
technical field [0001] The invention relates to an elevator device for oil drilling pipes. Background technique [0002] The oil drill pipe elevator device is a tool used to lift drill pipe, oil pipe, casing and other pipes. It is hung in the lifting rings on both sides of the hook of the lifting system, so as to lift out or run into the drilling tool in the wellbore. And tubing, casing operations. [0003] During drilling and workover operations, the elevator device is used to directly hang the wellhead tool of the pipe string, connect the lifting ring, and hang different pipe strings with different apertures. Elevators often bear the weight of all pipe strings in the top drive system, and also play an irreplaceable role in the process of taking over and unloading pipes. According to the different pipe strings suspended, they can be divided into sucker rod elevators, drill pipe elevators, Casing elevators and tubing elevators. [0004] During the pipe loading process, th...
Claims
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IPC IPC(8): E21B19/06
Inventor 戴义明戴京
Owner JIANGSU TENGLONG PETROCHEM MACHINERY