A drive device for injector head for coiled tubing

A driving device and injection head technology, applied in the direction of drill pipe, casing, drill pipe, etc., can solve the problems of difficult hoisting and operation installation, poor balance, structural asymmetry, etc., and achieve easy and balanced hoisting and operation installation Good performance and low speed stability

Active Publication Date: 2016-06-08
BC P INC CHINA NAT PETROLEUM CORP +2
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0008] In order to overcome the problems in the prior art that the hydraulic motor and the planetary gearbox are arranged on the same side of the injection head, resulting in structural asymmetry, resulting in poor balance, and making hoisting and installation difficult, the embodiment of the present invention provides a coiled tubing Injection head drive

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  • A drive device for injector head for coiled tubing

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Embodiment Construction

[0017] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0018] Such as figure 1 As shown, the embodiment of the present invention provides a coiled tubing injection head driving device, which includes two sets of hydraulic motor drive mechanisms 10 arranged on the injection head casing 8, and each set of hydraulic motor drive mechanisms 10 includes a hydraulic motor 1, a hydraulic Braking device 2, connecting disc 3, bearing seat 4, planetary gear reducer 9, bearing 5, sprocket shaft 7 and central shaft 6, the hydraulic motor 1 is connected with the hydraulic braking device 2 and installed on the connecting disc 3 Above, the connection plate 3 is fixed on one side of the injection head box 8 through the bearing seat 4, the bearing 5 is installed on the bearing seat 4, and the planetary gear...

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Abstract

The invention discloses a coiled tubing injection head driving device, which belongs to the petroleum field. The device includes two sets of hydraulic motor drive mechanisms arranged on the injection head box, each hydraulic motor drive mechanism includes a hydraulic motor, a hydraulic brake device, a connecting plate, a bearing seat, a planetary gear reducer, a bearing, a sprocket shaft and The central shaft, the hydraulic motor and the planetary gear reducer are respectively installed on both sides of the injection head box, the sprocket shaft is a hollow shaft, the central shaft passes through the sprocket shaft, and the center One end of the shaft is connected with the output end of the hydraulic motor, and the other end of the central shaft is connected with the input end of the planetary gear reducer. The embodiment of the present invention has the advantages of compact structure, symmetry, good balance, easy hoisting and operation installation, and also has the advantages of high driving efficiency and good low-speed stability.

Description

technical field [0001] The invention relates to the field of coiled tubing drilling, well logging and workover operations, in particular to a coiled tubing injection head driving device. Background technique [0002] Coiled tubing equipment is a hydraulically driven workover equipment that can be used on offshore platforms as well as on land oilfields. Coiled tubing operation equipment is mainly composed of five parts: injection head (drive guide), drum, coiled tubing, operation room, power source, and blowout prevention system. [0003] Among them, the injection head (drive guide device) is a device for running the coiled tubing into the well or pulling the tubing out of the well. At present, there are mainly two structures of coiled tubing injection head driving devices. [0004] method one [0005] It is directly driven by a low-speed high-torque motor. In this driving mode, the motor is usually two-speed variable displacement. In order to meet the maximum lifting forc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B19/22
Inventor 杨高刘寿军刘菲梁常飞陈立华熊革马青张富强
Owner BC P INC CHINA NAT PETROLEUM CORP
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