Wellhead drill pipe sealer used for pneumatic down-the-hole hammer drilling

A down-the-hole hammer and sealer technology, which is applied in sealing/isolation, wellbore/well components, earthwork drilling and production, etc., can solve the problem of poor wellhead drilling workers' health and poor construction conditions, and wellhead sealing can not achieve a good sealing effect And other problems, to achieve the effect of reducing production cost and good sealing effect

Inactive Publication Date: 2017-12-19
河南豫中地质勘查工程有限公司
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Both of these technologies need to inject high-pressure air from the ground through an air compressor to discharge the cuttings at the bottom of the well. Since the cuttings need an air velocity of at least 15m / s, during the drilling process, the wellhead reaction The exhaust air flow rate is fast, and the current wellhead seal cannot achieve a good sealing effect, which has a bad impact on the health of the wellhead drilling workers and construction conditions

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
  • Wellhead drill pipe sealer used for pneumatic down-the-hole hammer drilling
  • Wellhead drill pipe sealer used for pneumatic down-the-hole hammer drilling
  • Wellhead drill pipe sealer used for pneumatic down-the-hole hammer drilling

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] The present invention will be further described below in conjunction with the accompanying drawings.

[0013] Such as figure 1 As shown, a wellhead drill pipe sealer for pneumatic down-the-hole hammer drilling includes a left sealing part 10 and a right sealing part 5 that are all semicircular shells, and one end of the left sealing part 10 and the right sealing part 5 is hinged, as One end of the left sealing part 10 is welded with a first hinge part 8, and one end of the right sealing part 5 is welded with a second hinge part 6, the first hinge part 8 and the second hinge part 6 are hinged by a pin 7, and the other end is passed through The bolts 2 are fixedly connected to form a circular structure, and the nuts 1 for fixing the bolts 2 are welded on the left sealing part 10 and the right sealing part 5; the left sealing part 10 and the right sealing part 5 have the same structure. Such as figure 2 and image 3 As shown, the left sealing part 10 is now described a...

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 a wellhead drill pipe sealer used for pneumatic down-the-hole hammer drilling. The wellhead drill pipe sealer comprises a left sealing part and a right sealing part which are each in a semicircular shell shape; one ends of both the left sealing part and the right sealing part are hinged, and the other ends of both the left sealing part and the right sealing part are fixedly connected through bolts to form a circular structure; the left sealing part and the right sealing part are of the same structure; the left sealing part is formed by enclosing of an upper semicircular plate, a lower semicircular plate and an arc-shaped side plate and is a semicircular shell with an opening face; semicircular latex sealing blocks are embedded in the left sealing part, and the shapes of the latex sealing blocks are matched with the shape of the semicircular shell; a semicircular notch is formed in the circle center of each latex sealing block, rectangular notches are formed in both an upper semicircular plate and a lower semicircular plate and are externally tangent with the semicircular notches, and the diameter of each semicircular notch is equal to the length of the long side of each rectangular notch. Therefore, the two latex sealing blocks are pressed together tightly when the left sealing part and the right sealing part are closed, and the better sealing effect is achieved on the contact surface.

Description

technical field [0001] The invention belongs to the field of pneumatic down-the-hole hammer drilling, in particular to a wellhead drill pipe sealer for pneumatic down-the-hole hammer drilling. Background technique [0002] At present, rapid ground drilling has become a new technology for mine emergency rescue, opening up a "life channel" for mine emergency rescue, especially the perfect rescue of mine disasters in Chile and Pingyi mine disaster in my country, which proves that this technology is fast and effective . However, the opening of the "life channel" is only a key step in mine rescue. To rescue the trapped people, it is necessary to establish an "escape channel", that is, a large-diameter well (well diameter not less than φ650mm). At present, the main technology of "escape channel" is positive circulation pneumatic down-the-hole hammer drilling technology and reverse circulation pneumatic down-the-hole hammer drilling technology. [0003] Both of these technologies ...

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
Patent Type & Authority Applications(China)
IPC IPC(8): E21B33/03
CPCE21B33/03
Inventor 王新敏姬玉平张留彬刘国卫王立峰郝登峰张振伦曹伟张晓昂李亚辉刘坤鹏徐影
Owner 河南豫中地质勘查工程有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products