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

Casing expanding tool

A technology of expansion unit and expansion device, which is applied in the fields of production fluid, wellbore/well components, earth-moving drilling, etc., and can solve the problems of discontinuous action and extension of expansion time.

Inactive Publication Date: 2013-06-19
ENI SPA
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0038] The result is a discontinuous action and an overall prolonged swelling time

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
  • Casing expanding tool
  • Casing expanding tool
  • Casing expanding tool

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0065] According to a first embodiment, the anchoring and expansion unit 20, 30 of the invention comprises an anchoring device 20 and an expansion device 30, which are detachably constrained to each other.

[0066] The anchoring device 20 is preferably equipped with suspension means 24, 24a for suspension from the previous post 12, 13a, 13b.

[0067] More specifically, the anchoring device 20 comprises an inner expandable tubular element 21 covered by an outer tubular liner 22, 25 which is also expandable and supported by two It consists of a fixed upper part 25 and a movable lower part 22 . The lower part 22 of the outer liner is equipped with sealing means, such as elastomeric seals, to create a hydraulic circuit and act as an actuator piston for a series of leaf springs 24 positioned above the lower part 22 and constrained in on the upper portion 25 of the outer liner.

[0068] The actuation of the leaf spring 24 takes place after shearing of the stop pin 56 which keeps t...

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

An anchoring and expanding unit comprising an anchoring device (20, 20′) and an expanding device (30, 30′), reciprocally removably constrained, the anchoring device (20, 20′) being of the expandable type, wherein the expanding device (30, 30′) includes a series of expanding means (33a, 33b) which can be extracted and blocked in at least two different operative positions, wherein the expanding means (33a, 33b) protrude radially from the expanding device (30, 30′).

Description

technical field [0001] Tube anchoring and expansion unit for making elongated well and method of making elongated well using it [0002] The present invention relates to an anchoring and expansion unit for pipes for the manufacture of elongated wells and a method for using the unit for the manufacture of elongated wells for pumping e.g. water, oil or hydrocarbon. Background technique [0003] In the petroleum industry, the term "drilling" means a series of operations aimed at creating holes in the ground for the extraction of hydrocarbons. [0004] Among the various drilling techniques known today, the most widely used technique for reaching greater depths is rotary drilling with direct fluid circulation. In this technique, penetration into the subsurface occurs due to a rotating drill bit, at the lower end of which a set of drill rods are threaded. [0005] As the drill bit advances during drilling, it breaks up the ground and produces cuttings that are lifted from the b...

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 Patents(China)
IPC IPC(8): E21B43/10
CPCE21B43/105
Inventor M·斯帕利尼
Owner ENI SPA
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