An electric control valve for stepless regulation of downhole flow
An electric control valve, stepless adjustment technology, applied in the direction of sliding valve, valve details, valve device, etc., can solve the problems of poor practicability, discontinuous flow regulation, poor reliability, etc., and achieve the effect of large driving force
Active Publication Date: 2017-06-13
CHINA PETROLEUM & CHEM CORP +1
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
At present, many oil fields have also developed various types of downhole flow control switch tools for oil and water wells, but in the face of the invisible and intangible downhole environment, the practicability is poor, and the field application range is limited. The load is severe and the reliability is poor. , discontinuous flow regulation, etc. are all problems faced by existing downhole flow control tools
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
[0020] The detailed description and technical content of the present invention are described below with the accompanying drawings, but the accompanying drawings are only provided for reference and description, and are not intended to limit the present invention.
[0021] according to figure 1 , an electric control valve for stepless adjustment of downhole flow, including an upper joint 1, an armored cable 2, an outer pressure nail 3, an outer cylinder 4, an inner pressure nail 5, a sealing plug 6, a moving shaft 7, a brush holder 8, a pressure Sleeve 9, upper bearing 10, pressure ring 11, inner tube 12, stator 13, mover 14, lower bearing 15, stroke trigger 16 and lower joint 17. The upper joint 1 is threadedly connected with the outer cylinder 4, and is fastened with a locking nail 401 and sealed with a sealing ring 102. The armored cable 2 passes through the side hole of the upper joint 1 and is fastened and sealed with an external pressure nail 3. The outer cylinder 4 is th...
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 an electric control valve for stepless adjustment of downhole flow. The electric control valve for stepless adjustment of downhole flow comprises an outer barrel, a hollow motor drive mechanism and a flow stepless adjustment mechanism. The upper end of the outer barrel is connected with an upper connector, and the lower end of the outer barrel is connected with a lower connector. The flow stepless adjustment mechanism comprises a movable shaft and an inner pipe. An axial groove is formed in the inner side of the middle portion of the lower connector. The inner pipe penetrates through the outer barrel and an inner cavity of the lower connector. A ring space is formed between the upper half section of the inner pipe and the outer barrel. The outer wall of the lower half section of the inner pipe is tightly attached to the inner wall of the upper half section of the lower connector. A liquid inlet is formed in the upper half section of the lower connector. The lower end of the inner pipe is matched with the axial groove of the lower connector. The movable shaft is installed on the outer side of the inner pipe through threads. A hollow motor drive mechanism is installed between the outer barrel and the movable shaft, and used for driving the movable shaft to rotate. The movable shaft drives the inner pipe to ascend and descend so as to change the size of the liquid inlet. The electric control valve for stepless adjustment of downhole flow has the characteristics of the simple structure, symmetrical loads and the like, and stepless adjustment of downhole flow is achieved.
Description
technical field [0001] The invention relates to a downhole flow control tool, in particular to an electric control valve for downhole flow stepless regulation. Background technique [0002] With the intelligent development of oilfield development, especially the development of remote oil reservoirs, more intelligent technologies and products are required to meet the needs of intelligent oilfields, especially the development of downhole tools for intelligent oil wells is particularly important. At present, many oil fields have also developed various types of downhole flow control switch tools for oil and water wells, but in the face of the invisible and intangible downhole environment, the practicability is poor, and the field application range is limited. The load is severe and the reliability is poor. , discontinuous flow regulation, etc. are all problems faced by existing downhole flow control tools. Contents of the invention [0003] The object of the present invention...
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): F16K3/26F16K31/04
CPCF16K3/265F16K31/04
Inventor 孙宝全贾庆升李德忠刘红兰隋旭强田俊谷开昭张福涛曾凡春黄辉才王进京王登庆宋辉辉
Owner CHINA PETROLEUM & CHEM CORP