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

Wireless communication between tools

Inactive Publication Date: 2013-10-03
WELLTEC AS
View PDF4 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides an improved tool string for communication between two tools separated by an intermediate tool. This is achieved by using ferrites rods or an antenna wound around ferrites rods to increaseinductance without significantly increasing the size of the antenna. The acoustic devices at each end of the intermediate tool are able to send acoustic signals propagating along the housing of the intermediate and second tool, which is often made of a solid material, increasing its transmitting ability compared to the transmitting ability in the surrounding well fluid which may be inhomogeneous and thereby be a poor transmitting media compared to a metal housing.

Problems solved by technology

However, well fluid is most often very inhomogeneous as it comprises mud, scales, both oil and water, and gas bubbles.
However, when this is the case, communication between the tools of the other operator is hindered as these tools are separated by the tool of the one operator, through which communication is not possible.
This is due to the fact that the one operator uses a different communication system than the other operator and that it is not possible to pull wires through the intermediate tool.

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
  • Wireless communication between tools
  • Wireless communication between tools
  • Wireless communication between tools

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0059]FIG. 1 shows a downhole tool system 1 comprising three tools; a first 1, a second 2 and a third 3 tool, arranged as a tool string. The first tool 1 is connected to a wireline at its first end 11 to power the tool string. In its second end 12, the first tool 1 is connected to a first end 21 of the second tool 2 by means of a threaded connection firmly connecting the first 1 and second 2 tools. In its second end 22, the second tool 2 is connected to a first end 31 of the third tool 3, also by means of a threaded connection.

[0060]Two operators may work together to perform a well operation in the sense that a tool of one operator is arranged between the tools of another operator. Thus, the first 1 and the third tool 3 come from a first operator and the second tool 2 comes from a second operator. Since the first 1 and third 3 tools are separated by the second tool 2, communication between the tools of the first operator cannot take place inside the tools in the conventional way sin...

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 present invention relates to a downhole tool system for being submerged into a casing, comprising at least three tools having a tool axis. Furthermore, the present invention relates to a downhole tool system for being submerged into a casing, comprising at least three tools, and finally the invention relates to communication methods for communicating wirelessly between a first and a third tool separated by a second tool.

Description

FIELD OF THE INVENTION[0001]The present invention relates to a downhole tool system for being submerged into a casing, comprising at least three tools having a tool axis. Furthermore, the present invention relates to a downhole tool system for being submerged into a casing, comprising at least three tools, and finally the invention relates to communication methods for communicating wirelessly between a first and a third tool separated by a second tool.BACKGROUND ART[0002]Communication between surface and a tool in a well via acoustic signals in the well fluid is known. However, well fluid is most often very inhomogeneous as it comprises mud, scales, both oil and water, and gas bubbles. Therefore, the communication sometimes fails.[0003]Sometimes, two operators work together to perform a well operation in the sense that a tool of one operator is arranged between the tools of another operator. However, when this is the case, communication between the tools of the other operator is hin...

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): E21B47/12E21B47/14
CPCE21B47/14E21B47/122E21B47/13
Inventor HALLUNDB.AE BUTTED.K, JORGEN
Owner WELLTEC AS
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More