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Lateral junction assembly

A joint component and transverse technology, which is applied in the direction of wellbore/well components, production fluid, construction, etc., can solve the problems of equipment leakage, limited use, difficult control of precision, etc., and achieve the effect of liquid-tight transverse joint

Inactive Publication Date: 2013-09-04
WELLTEC AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this is that cement or other settable fluids are used in the design of the lateral joint between the main well and the horizontal well
Additionally, subsequently deforming the device would present a risk of leakage
[0005] Laterals are created downhole, so the precision of this operation can be difficult to control, limiting its use

Method used

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Examples

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Embodiment Construction

[0089] Figure 1a Shown is a transverse joint assembly 1 comprising a pipe module 10 and a fixing element 25 for fixing the pipe module 10 at a predetermined position in a casing 60 so as to Figure 6a A lateral extension is shown extending from casing 60 into the formation. The transverse joint assembly 1 extends in a longitudinal direction 50 and has a top end 16a and a bottom end 15a.

[0090] The tube module 10 has a flange 11 extending in the longitudinal direction from a bottom edge 15a to a top edge 16a. The flange is curved in a direction transverse to the longitudinal direction 50 . The tube section 12 extends from an outer surface 13 of the flange 11 on which is positioned a sealing material 14 extending around the tube section 12 . The sealing material 14 has a strip-like shape, but it will be apparent to those skilled in the art that the sealing material can be shaped and positioned in a variety of ways. The pipe module also includes a channel 18 extending from ...

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PUM

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Abstract

The present invention relates to a lateral junction assembly (1) for providing a lateral junction in a wellbore by being inserted into a casing (60) having an opening (61) and defining a longitudinal axis (52), the lateral junction assembly (1) having a longitudinal direction (50) which is substantially parallel to the longitudinal axis (52) and comprising a pipe module (10) comprising a pipe section (12) for being inserted through the opening (61) in the casing and a flange (11), wherein the lateral junction assembly further comprises a fixation element (25) adapted for being connected with the flange (11) to fixate the pipe module (10) in a predetermined location with the pipe section extending through the opening (61) in the casing (60).

Description

technical field [0001] The present invention relates to a transverse joint assembly that provides a transverse joint in a wellbore by being inserted into a casing having an opening and defining a longitudinal axis. Furthermore, the present invention relates to a lateral joint system for providing a lateral joint in a wellbore. Furthermore, the invention relates to a cable tool for transporting, positioning and assembling a transverse joint assembly in a bushing. Finally, the invention relates to a method for installing a transverse joint assembly into a wellbore. Background technique [0002] A lateral wellbore is a branch of the main wellbore and is often called a lateral or sidetrack. If a well has multiple laterals, the mine is called a multi-lateral mine. [0003] Designing wells with laterals is one of the ways to increase the productivity of an oil or gas well and can help reduce costs associated with drilling operations. Crossbranches can be created before complet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B17/02E21B41/00E21B43/10
CPCE21B17/023E21B41/0035E21B41/0042E21B43/10
Inventor J·哈伦德巴克
Owner WELLTEC AS
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