Heating equipment and heating method for prolonging service life of coiled tubing
A technology for heating equipment and coiled tubing, applied in heating elements, ohmic resistance heating components, etc., can solve problems such as plastic deformation, accelerated fatigue damage, and low service life
Active Publication Date: 2021-04-02
YANGTZE UNIVERSITY
View PDF3 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] Therefore, many companies and research institutions improve the shape of coiled tubing by improving the coiled tubing processing technology from the aspect of material manufacturing, so as to increase the coiled tubing service life; even so, each complete operation process of coiled tubing must go through the stage of cyclic bending under pressure. Range of plastic deformation, thereby accelerating the fatigue damage process, resulting in low service life, therefore, it is necessary to improve it
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
[0041] The heating equipment for improving the service life of the coiled tubing is composed of an oblique fixture 1, a straight fixture 2, a connecting rod 11, a lifting rod and a heating element. The straight fixture 2 and the oblique fixture 1 are arranged side by side at intervals. The straight fixing part 2 is composed of a left straight fixing plate 3 and a right straight fixing plate 4, and the left straight fixing plate 3 and the right straight fixing plate 4 are symmetrically arranged, and the left straight fixing plate 3 and the right straight fixing plate 4 are arranged in an axial direction respectively. The corresponding shape is provided with a fixed groove A5, and the left straight fixed plate 3 and the right straight fixed plate 4 above the fixed groove A5 are respectively provided with a connecting rod assembly groove 6 in an axial corresponding shape; the fixed groove A5 and the connected rod assembly groove 6 are semicircular arc grooves respectively.
[004...
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 relates to heating equipment and a heating method for prolonging the service life of a coiled tubing, and belongs to the technical field of heating equipment on a petroleum drilling well. The equipment is composed of an inclined fixing piece, a straight fixing piece, a connecting rod, a lifting rod and heating pieces, the straight fixing piece and the inclined fixing piece are arranged side by side at intervals, the connecting rod is arranged above the straight fixing piece, the straight fixing piece is movably connected with one end of the connecting rod through a universal balljoint, and a connecting plate A is fixedly installed at the other end of the connecting rod, the lifting rod is arranged above the inclined fixing piece, the inclined fixing piece is movably connected with one end of the lifting rod through a universal ball joint, a connecting plate B is movably installed at the other end of the lifting rod, and the heating pieces are fixedly installed on the connecting plate A and the connecting plate B through locking bolts. The heating equipment is convenient to assemble and disassemble and high in reliability, the service life of the coiled tubing is prolonged compared with existing improvement from the aspect of material manufacturing, and the heating equipment performs direct heating on the coiled tubing on site so as to prolong the service life ofthe coiled tubing.
Description
technical field [0001] The invention relates to a heating device and a heating method for improving the service life of coiled tubing, and belongs to the technical field of heating equipment on oil drilling and production wells. Background technique [0002] Coiled tubing, also known as flexible tubing, can be as long as 10,000 meters in one coil, and can replace drill pipe and tubing for operations; coiled tubing completes a downhole operation at least 3 times of bending and straightening cycles, that is, 3 times of bending deformation and 3 times of straightening deformation , a total of 6 bending and straightening deformation processes. From the working process of coiled tubing, it can be known that the bending-straightening cycle in the hoisting process of coiled tubing is the cause of low cycle fatigue of coiled tubing (also known as conditional fatigue limit, or "low cycle fatigue". Refer to the parts that can withstand the number of times the working cycle may work. ...
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 Applications(China)
IPC IPC(8): H05B3/06
CPCH05B3/06
Inventor 刘少胡侯如意江山
Owner YANGTZE UNIVERSITY