Unlock instant, AI-driven research and patent intelligence for your innovation.

Efficient plug valve for oil drilling

A technology for oil drilling and plug valve, which is applied in wellbore/well valve device, earthwork drilling, wellbore/well components, etc. The effect of efficient and fast adjustment, convenient operation and maintenance, and low processing difficulty

Pending Publication Date: 2019-08-06
东营市创元石油机械制造有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The plug valve currently used not only includes necessary parts such as valve body, ball, upper seat, lower seat, spring, knob, etc., but also auxiliary positioning parts such as snap ring, retaining ring, positioning ring and elastic retaining ring. The structure is complex. , a large number of accessories, difficult adjustment and installation, high positioning accuracy requirements, difficult processing, high scrap rate, difficult standardization, difficult maintenance, low production efficiency, resulting in a great waste of resources

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Efficient plug valve for oil drilling
  • Efficient plug valve for oil drilling

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A high-efficiency plug valve for oil drilling includes a valve body 1, a lower valve seat 2, a spring 3, a knob 4, a ball 5, an upper valve seat 6, a pressure ring 7, an upper limit surface 6-1, a lower limit surface 2-1, The opening positioning surface 4-1 and the closing positioning surface 4-2, wherein the valve body 1 is a round tube with threads processed at both ends, and the inner hole is sequentially processed from top to bottom with two steps, an annular groove and a third There are three steps, the hole below the first step is threaded, the thread is fixed with a pressure ring 7, a radial step hole is processed in the annular groove, the knob 4 is housed in the hole, and the spring 3 is supported on the lower step of the annular groove. , the lower valve seat 2, the sphere 5, and the upper valve seat 6 are sequentially installed on the top of the third step. The long strip-shaped protrusion on the right part of the knob 4 is inserted into the long groove in the...

Embodiment 2

[0023] The difference from Embodiment 1 is that the high-efficiency plug valve for oil drilling has a hexagonal wrench hole processed on the left end surface of the knob 4 .

Embodiment 3

[0025] The difference from Embodiments 1 and 2 is that the high-efficiency plug valve for oil drilling has a spring 3 set on the outer circle of the lower step of the lower valve seat 2 .

[0026] Connect the high-efficiency cock valve for oil drilling into the drill string, connect the mud channel, turn the knob 4 counterclockwise with a special wrench, and the knob 4 drives the ball 5 to rotate counterclockwise. When the opening positioning surface 4-1 and the upper limit surface 6-1 Or when the lower limit surface 2-1 is in contact with each other, the plug valve is fully opened, and the mud channel is opened at this time, and the mud flows smoothly into the lower drilling tool. When overflow or blowout occurs, use a special wrench to rotate the knob 4 90 degrees clockwise, When the closing positioning surface 4-2 is in contact with the upper limit surface 6-1 or the lower limit surface 2-1, the cock valve is in a completely closed state, cutting off the mud passage, prevent...

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

No PUM Login to View More

Abstract

The invention discloses an efficient plug valve for oil drilling. The efficient plug valve comprises a valve body, a pressing ring, a lower valve seat, a spring, a knob, a sphere, an upper valve seat,an upper limiting surface, a lower limiting surface, opening-position positioning surfaces and closing-position positioning surfaces, wherein the valve body is in a circular pipe shape, threads are machined at the two ends of the valve body, two steps, an annular groove and a third step are sequentially machined in an inner hole from top to bottom, the pressing ring is fixed into the position, below the first step, of the hole, the knob is mounted in a radial step hole in the annular groove, the upper limiting surface and the lower limiting surface are the lower end face of the upper valve seat and the upper end face of the lower valve seat correspondingly, the opening-position positioning surfaces and the closing-position positioning surfaces are located on the knob, a thread is machinedon the pressing ring, and positioning adjusting can be conducted very conveniently, efficiently and quickly by rotating the pressing ring. The valve is exquisite in design, low in machining difficulty, convenient to operate and maintain, low in cost and long in life, and can be operated and used with the pressure.

Description

technical field [0001] The invention relates to the technical field of oil drilling, in particular to a high-efficiency plug valve for oil drilling. Background technique [0002] The plug valve is a manual control valve in the drilling string circulation system of oil drilling, and it is an important internal blowout prevention tool. When overflow or blowout occurs, use a special wrench to turn 90 degrees according to the instructions to close it, so as to prevent the excessive pressure in the drilling tool from damaging the hose and ground equipment, and achieve the purpose of blowout prevention in the drilling tool. [0003] The plug valve currently used not only includes necessary parts such as valve body, ball, upper seat, lower seat, spring, knob, etc., but also auxiliary positioning parts such as snap ring, retaining ring, positioning ring and elastic retaining ring. The structure is complex. , the number of accessories is large, the adjustment and installation are di...

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
no application Login to View More
IPC IPC(8): E21B34/14
CPCE21B34/14
Inventor 朱怀军田相录王笑笑陈欢欢
Owner 东营市创元石油机械制造有限公司