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Formation penetrating tool

a technology of penetrating tools and drilling holes, applied in the direction of fluid removal, drilling machines and methods, borehole/well accessories, etc., can solve the problem of radial fractures not being made, and achieve the effect of more control of the fracturing process

Inactive Publication Date: 2014-04-17
WELLTEC AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention offers a tool for hydraulically penetrating a formation in a well casing using fluid from the well. The tool has a pump that is submersible into the well casing, which simplifies the tool design and allows it to be easily submerged down the well. The holding unit prevents the hose from being forced backwards when accessing the formation. The technical effects of this invention include simplified design, ease of use, and reduced cost.

Problems solved by technology

When fracturing, there is always a risk that the fractures are not made radially from the casing, as the formation cracks at its weakest spots.

Method used

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  • Formation penetrating tool
  • Formation penetrating tool

Examples

Experimental program
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Embodiment Construction

[0090]FIG. 1 shows a formation penetrating tool 1 submerged in a casing 2 in a well 3. In order to penetrate the formation, the tool 1 has a tool housing 4 in which a casing penetrating unit 5 adapted to provide a hole 6 in a wall 7 of the casing 2 is arranged. Subsequently, a nozzle 10 is arranged in an end of a supply hose 8, slidable within the tool housing 4. The supply hose 8 supplies a high pressurised fluid 9 to the nozzle 10 which is jetted as a jet stream out through the hole 6 in order to penetrate the formation, thereby providing a formation micro-bore substantially radially from the formation penetrating tool 1. The formation penetrating tool 1 comprises a pump 12 which is in fluid communication with the supply hose 8 for providing a jet 13 of fluid out of the nozzle 10 to penetrate the formation creating the micro-bore or formation bore 32. The formation penetrating tool 1 may penetrate the casing 2 by means of the high pressurised fluid jetted through the nozzle 10, an...

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Abstract

The present invention relates to a formation penetrating tool submersible into a casing in a well for hydraulically penetrating a formation and having a longitudinal tool axis, comprising a tool housing, a supply hose, slidable in the tool housing, for supplying a high pressurised fluid to a nozzle, and the tool housing having an opening through which the supply hose and the nozzle are led to penetrate the formation, wherein the formation penetrating tool further comprises a pump arranged in the tool housing, the pump being in fluid communication with the supply hose for providing a jet of fluid out of the nozzle for penetrating the formation. Furthermore, the invention relates to a downhole system comprising a formation penetrating tool according to the invention and to a method for hydraulically penetrating a formation.

Description

FIELD OF THE INVENTION[0001]The present invention relates to a formation penetrating tool submersible into a casing in a well for hydraulically penetrating a formation and having a longitudinal tool axis, comprising a tool housing, a supply hose, slidable in the tool housing, for supplying a high pressurised fluid to a nozzle, and the tool housing having an opening through which the supply hose and the nozzle are led to penetrate the formation. Furthermore, the invention relates to a downhole system comprising a formation penetrating tool according to the invention and to a method for hydraulically penetrating a formation.BACKGROUND ART[0002]When fracturing the formation in order to provide better access to the hydrocarbon reservoir, the maximum reservoir contact is obtained if the fractures are created perpendicularly or radially from the casing or from the bore hole in a well. When fracturing, there is always a risk that the fractures are not made radially from the casing, as the ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): E21B7/18
CPCE21B7/18E21B43/114E21B43/26E21B7/061
Inventor HALLUNDB.AE BUTTED.K, JORGENMANGAL, LARS
Owner WELLTEC AS
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