Novel plug valve with lubricating and filling functions
A plug valve, a new type of technology, is applied in wellbore/well valve devices, wellbore/well components, sealing/packing, etc., and can solve problems such as ball valve gap failure, drilling mud erosion, and reduced service life of plug valves. , to achieve the effect of eliminating stress concentration, improving bearing capacity and reducing switching torque
Active Publication Date: 2017-05-24
MUDANJIANG XINBEIFANG PETROLEUM DRILLING TOOL
View PDF7 Cites 3 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] The purpose of the present invention is to provide a new type of plug valve with lubricating and filling functions, aiming to solve the problem that the inner cavity of the existing plug valve is very easy to form drilling mud accumulation. Over time, the drilling mud will be eroded because the knob switch is not in place. Make the ball valve notch and fail, thereby reducing the service life of the plug valve
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
[0022] In order to further understand the content, features and effects of the present invention, the following examples are given, and detailed descriptions are given below with reference to the accompanying drawings.
[0023] Such as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Image 6 , Figure 7 As shown, the present invention is achieved in this way, a new plug valve with lubrication and filling functions, including a plug valve body 1, an upper valve seat 2 installed in the plug valve body 1, a lower valve seat 3, and a set For the ball valve 4 between the upper valve seat 2 and the lower valve seat 3, the plug valve body 1 is provided with a knob hole 5, and the top of the ball valve 4 is provided with a knob 6 matching the knob hole 5 A boss 7 is provided between the plug valve body 1 and the knob 6. In this embodiment, the boss 7 can be designed as an arc, which facilitates the positioning of the plug valve body 1 and the knob 6. Instead of positi...
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 belongs to the technical field of plug valves, and particularly relates to a novel plug valve with lubricating and filling functions. The novel plug valve comprises a plug valve body, an upper valve base, a lower valve base and a ball valve arranged between the upper valve base and the lower valve base, wherein the upper valve base and the lower valve base are installed inside the plug valve body; a boss is arranged between the plug valve body and a rotary knob, and first solid filler is arranged between the rotary knob and the plug valve body; second solid filler is arranged between the upper valve base and the ball valve, and second solid filler is arranged between the lower valve base and the ball valve. According to the novel plug valve, the rotary knob and the plug valve are positioned through the boss, stress concentration of the plug valve body is eliminated, and the bearing capacity of the plug valve body is improved; solid filler is added between the upper valve base and the ball valve, between the lower valve base and the ball valve and between the rotary knob and a plug valve body rotary knob hole respectively, gaps between the upper valve base and the ball valve, between the lower valve base and the ball valve and between the rotary knob and the plug valve body are occupied, and the phenomenon that drilling fluid enter the space is prevented.
Description
technical field [0001] The invention belongs to the technical field of plug valves, in particular to a novel plug valve with lubricating and filling functions. Background technique [0002] At present, the kelly cock valve is a manual control valve and an important blowout prevention tool in the drill string, which can effectively prevent the occurrence of blowout accidents. Drilling fluid can flow freely without pressure drop. When kick or blowout occurs downhole, it can be closed in time to cut off the internal channel of the drilling tool to achieve the purpose of blowout prevention in the drilling tool. After the inner channel is cut off, it can be processed in time, and when the processing is completed, it is opened again to release the bottom hole pressure. Usually during the drilling process, it can be closed when connecting to a single root, preventing the mud from flowing to the well platform and polluting the environment. Therefore, during the drilling process, t...
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 IPC IPC(8): E21B34/06
Inventor 王吉山周明张君王文峰董际春
Owner MUDANJIANG XINBEIFANG PETROLEUM DRILLING TOOL