Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Top-drive drill rod well cementing head

A technology of cementing cement and drill pipe, which is applied in earthwork drilling, wellbore/well components, sealing/isolation, etc., to achieve the effect of reducing operation time, reducing labor intensity and improving cementing quality

Inactive Publication Date: 2013-03-06
CHINA PETROLEUM & CHEM CORP +1
View PDF7 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to overcome the defects that the existing cementing head cannot be connected with the top driving device, and cannot be rotated forward or reversed with a large torque as a whole

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
  • Top-drive drill rod well cementing head
  • Top-drive drill rod well cementing head
  • Top-drive drill rod well cementing head

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can more clearly understand the advantages and effects of the present invention.

[0029] It should be noted that the structures, proportions, sizes, etc. shown in the drawings of the specification are only used to cooperate with specific implementation methods, so that those skilled in the art can understand the concept of the present invention more clearly, and are not intended to limit the scope of protection of the present invention. . Any structural modification, change in proportional relationship or size adjustment should still fall within the protection scope of the present invention, provided that it does not affect the function and purpose of the present invention.

[0030] Such as figure 1 As shown, a top drive drill pipe cementing head of the present invention includes a main body pipe 1 and...

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 top-drive drill rod well cementing head which comprises a body tube and a lower nipple, wherein the lower end of the body tube is in detachable connection with the upper end of the lower nipple, an upper connecting part is arranged at the upper end of the body tube, and a lower connecting part is arranged at the lower end of the lower nipple; a rubber plug is arranged in the body tube, a rubber plug releaser and an outer slide sleeve are installed on the body tube, and the outer slide sleeve is in spline connection respectively with the lower end of the body tube and the upper end of the lower nipple. The top-drive drill rod well cementing head can integrally rotate forwards or backwards along with a top-drive device and transfer a high torque. In conventional casing cementing construction, the pipeline flow of cement circulation and cement displacement can be optimized, connections of drilling platform cementing high-pressure pipelines and accessories are effectively reduced, and labor intensity and potential unsafe factors are reduced. In tail pipe hanger cementing construction, movable liner string columns which can vertically move in a large scale can be formed. The top-drive drill rod well cementing head can be used for cleaning of boreholes, and cementing quality is improved.

Description

technical field [0001] The invention relates to a well cementing and well completion tool for oil and natural gas wells, in particular to a top drive type drill pipe cementing head. Background technique [0002] In the exploration and development of offshore oil and natural gas, offshore fixed, semi-submersible and floating drilling platforms are widely used at home and abroad. Drill pipe cement head is commonly used in the casing construction of each layer of semi-submersible and floating drilling platforms to achieve cementing and cementing. The existing conventional drill pipe cementing head is more suitable for drilling cementing construction of land well crews and offshore (shallow water) fixed platforms; for semi-submersible and floating (shallow, medium and deep water) drilling platforms, due to The wellhead device is under water, and with the continuous improvement and improvement of drilling equipment technology in recent years, there are some problems in the casin...

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): E21B33/13
Inventor 贺良弟吕金山陈革强
Owner CHINA PETROLEUM & CHEM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com