Rotary guiding double-piston hydraulic device
A hydraulic device and rotary oriented technology, applied in the direction of fluid pressure actuating device, servo motor, servo meter circuit, etc., can solve the problems of low control accuracy, short continuous operation time of the instrument, high failure rate, and improve the deflection accuracy and ease of use. Processing, the effect of reducing the failure rate
Pending Publication Date: 2018-06-05
BC P INC CHINA NAT PETROLEUM CORP +1
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Problems solved by technology
[0003] The invention provides a rotary-guided double-piston hydraulic device, which overcomes the shortcomings of the prior art and can effectively solve the problems of high failure rate, low control precision and short continuous operation time of the entire instrument in existing piston pushing equipment.
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[0026] The present invention is not limited by the following examples, and specific implementation methods can be determined according to the technical solutions of the present invention and actual conditions.
[0027] In the present invention, for the convenience of description, the description of the relative positional relationship of each component is based on the description attached to the description. figure 1 For example, the positional relationship of front, rear, top, bottom, left, right, etc. is determined according to the layout direction of the drawings in the description.
[0028] Below in conjunction with embodiment and accompanying drawing, the present invention will be further described:
[0029] as attached figure 1 , 2, 3, 4, and 5, the rotary-guided double-piston hydraulic device includes a push housing 1, an oil bladder pressure plate 2, an oil bladder body 3, a piston pressure plate 4, a piston cylinder liner assembly, a motor 5, a hydraulic pump 6, a v...
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Abstract
The invention relates to the technical field of drilling equipment, and provides a rotary guiding double-piston hydraulic device. The rotary guiding double-piston hydraulic device comprises a pushingshell, an oil bag pressing plate, an oil bag body, a piston pressing plate, a piston cylinder liner assembly, a motor, a hydraulic pump, a valve base, a check valve and an isolating seal ring; the oilbag body is mounted on the pushing shell through the oil bag pressing plate in a limiting mode, and an oil storage chamber is formed between the oil bag body and the pushing shell; a piston groove with an upward opening is formed in the movable pushing shell at the rear of the oil bag body, the piston pressing plate is fixedly mounted on the upper portion of the pushing shell at the position of the piston groove, and a piston storage chamber is formed between the piston pressing plate and the pushing shell. The rotary guiding double-piston hydraulic device has a reasonable and compact structure and can be used for downhole operation under pressure, at least two pistons are used for acting on a protective plate to improve deflection precision of rotary steerable drilling tools, reduce failure rate and prolong action time of the entire device, and the rotary guiding double-piston hydraulic device has the advantages of easy use, easy processing and high stability.
Description
technical field [0001] The invention relates to the technical field of drilling equipment, and relates to a rotary steering double-piston hydraulic device. Background technique [0002] During the drilling process, the vertical drilling tool can adjust the well deviation in real time to meet the requirements of the wellbore trajectory, so that the drill bit can reach the predetermined target. The push-to-type vertical drilling tool is widely used. The tool realizes the steering function by controlling the actions of three hydraulic modules. Most of the hydraulic modules of vertical drilling tools have many problems such as high failure rate and low control accuracy, which make the whole instrument unable to work continuously for a long time. Contents of the invention [0003] The present invention provides a rotary-guided double-piston hydraulic device, which overcomes the deficiencies of the above-mentioned prior art, and can effectively solve the problems of high failur...
Claims
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Login to View More IPC IPC(8): F15B11/00
CPCF15B11/00F15B2211/70
Inventor 张军锋李晓军李富强谭凯王飞跃张昕张胜鹏卢明
Owner BC P INC CHINA NAT PETROLEUM CORP