Petroleum pipeline nipple assembly
A technology for oil pipes and short joints, which is applied to drill pipes, casings, drilling equipment, etc., can solve the problems of low product qualification rate, substandard wall thickness, labor and time-consuming, etc., and achieves simple processing and forming technology and dense organizational structure. , the effect of good quality stability
Inactive Publication Date: 2017-02-15
WUXI JINDING OIL PIPE FITTINGS
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Due to the short length of oil well pipe pup joints, especially the oil well pipe pup joints with a length less than 1m, the conventional oil well pipe thickening process cannot be processed, because the clamping section of the oil pipe is too short to retreat and cannot be thickened
At present, most steel pipe manufacturers adopt the method of mechanical cutting and forming of thick-walled pipes to produce, but the cutting process will be affected by the uneven wall thickness of thick-walled pipes, which will easily lead to uneven local wall thickness of short joints. At the same time, it is necessary to turn off all the excess wall thickness in the middle of the pipe body by mechanical cutting, which not only causes waste of metal materials, but also has high machining costs, labor and time, poor economy, and low product qualification rate
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
[0013] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not used to limit the present invention.
[0014] Such as figure 1 , figure 2 As shown, an oil pipe short section assembly includes an oil pipe short section body 1, a pipe cover 2 is provided at one end of the oil pipe section body, and a protruding block is provided on the outside of the pipe cover. The center of the pipe cover is provided with a through hole, the other end of the oil stub body is provided with an arc section 3, and an expansion port 4 is provided on the arc section. , The oil cylinder 5 is connected to the hydraulic station 6 through a high-pressure oil pipe. The inside of the tubing short section body is coated with wear-resistant material. The main body of the tubing pup joint is made of nodu...
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 petroleum pipeline nipple assembly. The petroleum pipeline nipple assembly comprises a petroleum pipeline nipple body and is characterized in that a pipeline cover is arranged at one end of the petroleum pipeline nipple body, a through hole is formed in the center of the pipeline cover, and an arc section is arranged at the other end of the petroleum pipeline nipple body and provided with an expansion opening; and the expansion opening of the petroleum pipeline nipple body is connected with a petroleum pipeline which is directly connected with a piston of an oil cylinder, and the oil cylinder is connected with a hydraulic station through a high-pressure oil pipe.
Description
Technical field [0001] The invention belongs to the technical field of petroleum pipelines, and particularly relates to a short section assembly of petroleum pipelines. Background technique [0002] With the continuous expansion of oil production, the use of oil well pipes has also continued to increase. As a part of the oil well string, the amount of oil well pipe shorts has also increased. Due to the short length of the oil well pipe thickening short section, especially the oil well pipe short section less than 1m in length, it cannot be processed by the conventional tubing thickening process because the clamping section of the tubing is too short and cannot be thickened back. At present, most steel pipe manufacturers use thick-walled pipe machining and forming methods to produce, but the cutting process will be affected by the uneven wall thickness of the thick-walled pipe, which can easily lead to uneven local wall thickness of the sub-section. At the same time, mechanical c...
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): E21B17/02
CPCE21B17/02
Inventor 沈金章
Owner WUXI JINDING OIL PIPE FITTINGS