A Small Diameter Static Pushing Vertical Drilling System Driven by Micro Motor
A micro-motor and vertical drilling technology, applied in the field of drilling, can solve the problems of too large guide sleeve size, inability to use small-diameter wellhead drilling, complex structure, etc., and achieve the effect of saving space, simplifying structure and stable operation.
Active Publication Date: 2018-03-09
CHINA UNIV OF GEOSCIENCES (BEIJING)
View PDF10 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, the hydraulic drive system used to drive the guide block requires an independent hydraulic pump and other mechanisms, and the structure is complex, so that the size of the guide sleeve is too large to be applied to the drilling of small-diameter wellheads
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0023] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0024] For the convenience of description, words such as up, down, inside, and outside in the present invention are used to describe the relative positional relationship of each component. "Down" refers to the direction away from the drill bit, and "down" refers to the direction close to the drill bit. "Inner" refers to the direction close to the central axis of the drilling system, and "outer" refers to the direction away from the central axis of the drilling system.
[0025] Please refer to figure 1 The small-diameter static pushing vertical drilling system driven by a micro-motor includes an external guide sleeve 1 that does not rotate with the drill pipe. The middle part of the guide sleeve 1 is a drill pipe, and the lower end ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a small-diameter static pushing vertical drilling system driven by a micro-motor, which includes a guide sleeve, the lower part of which is provided with a guide structure that can expand and contract radially along the guide sleeve, and also includes a driving mechanism for driving the guide structure. The above drive mechanism includes a servo motor, the output shaft of the servo motor drives the connecting bolt through a reducer, the bolt is threadedly connected with a slider, and the inner and outer sides of the slider are provided with a limit structure, so that when the bolt rotates, the slider can be driven along the axis of the bolt. When the bolt rotates in one direction, the slider can push out the guide structure, and when the bolt rotates in the other direction, the guide structure can shrink under the action of the reset mechanism. The drilling system is especially suitable for drilling operations of small diameter wellheads.
Description
technical field [0001] The invention relates to the technical field of drilling, in particular to a small-diameter static pushing vertical drilling system driven by a micro motor. Background technique [0002] At present, drilling engineering is an important means of resource and environmental exploration, and its research field is extending from the traditional surface to the polar regions, the ocean, and the deep part of the earth and the bottom of the ocean. Deep drilling will be an important means of deep earth exploration and the only way to obtain real objects deep in the earth. However, in the process of deep drilling, how to keep the wellbore vertical is a big problem. The problem of well deviation will directly restrict the drilling speed and drilling speed. Quality, and even the success or failure of the entire drilling project. For example, Songke No. 2 well intends to make the well depth reach 6,400 meters. With the continuous increase of well depth, the problem...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): E21B7/04E21B7/10
Inventor 薛启龙刘宝林胡远彪杨甘生李国民王瑜周琴
Owner CHINA UNIV OF GEOSCIENCES (BEIJING)