CA2512700A1 - Apparatus and methods for forming a lateral wellbore - Google Patents

Apparatus and methods for forming a lateral wellbore Download PDF

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Publication number
CA2512700A1
CA2512700A1 CA002512700A CA2512700A CA2512700A1 CA 2512700 A1 CA2512700 A1 CA 2512700A1 CA 002512700 A CA002512700 A CA 002512700A CA 2512700 A CA2512700 A CA 2512700A CA 2512700 A1 CA2512700 A1 CA 2512700A1
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CA
Canada
Prior art keywords
liner
window
drill
mill
expanding
Prior art date
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Granted
Application number
CA002512700A
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French (fr)
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CA2512700C (en
Inventor
David Michael Haugen
Frederick Thomas Tilton
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Weatherford Lamb Inc
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Individual
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Publication date
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Priority claimed from CA002406663A external-priority patent/CA2406663C/en
Publication of CA2512700A1 publication Critical patent/CA2512700A1/en
Application granted granted Critical
Publication of CA2512700C publication Critical patent/CA2512700C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

A method and system of forming a lateral wellbore in a time and trip saving manner using a mill/drill to locate and place a casing window. In one aspect of the invention, a lateral wellbore is drilled with liner which is subsequently left in the lateral wellbore to line the sides thereof. In another aspect, the mill/drill is rotated with a rotary steerable system and in another aspect, the mill/drill is rotated with a downhole motor or a drill stem.

Claims (28)

1. A method of expanding a liner extending into a lateral wellbore through a window in casing disposed in a wellbore, comprising:
providing an expander having at least one radially extendable expander member disposed about a body, each expander member having a retracted and an extended position and each member having a piston surface for moving the member to the extended position with a pressurized fluid, wherein, in the extended position, the expander members are biased to permit radially inward movement due to inwardly directed forces from surfaces surrounding the liner; and expanding the liner at least across a portion of the liner proximate the window with the expander.
2. A method of expanding a liner extending into a lateral wellbore through a window in casing disposed in a wellbore, comprising:
locating an expander inside the liner, the expander having at least one radially extendable member movable between a first extended position and a second lesser extended position, wherein a biasing mechanism biases the at least one radially extendable member toward the first extended position;
operating the expander to the first extended position; and moving the expander axially within the liner to expand a length of the liner across the window.
3. A method of forming a lateral wellbore, comprising:
inserting a liner having a mill/drill disposed at one end into a cased wellbore having a casing therein;
cutting a window in a wall of the casing with the mill/drill;

drilling into a formation proximate the window with the mill/drill while advancing the liner to form the lateral wellbore; and expanding the liner through the window.
4. A method as claimed in claim 3, wherein the liner and mill/drill are rotationally coupled.
5. A method as claimed in claim 3 or 4, wherein the cutting and the drilling include rotating the mill/drill with a rotational force provided at a surface of the well.
6. A method as claimed in claim 3, wherein the liner and mill/drill are rotationally independent and rotation of the mill/drill for the cutting and the drilling is provided by a downhole motor disposed thereabove.
7. A method as claimed in any one of claims 3 to 6, wherein the mill/drill comprises an inner portion and an outer portion, the inner portion being selectively removable from the outer portion of the mill/drill.
8. A method as claimed in any one of claims 3 to 7, further comprising directing the mill/drill towards the wall with a diverter fixed in the cased wellbore therebelow.
9. A method as claimed in any one of claims 3 to 7, further comprising directing the mill/drill using a bent liner.
10. A method as claimed in any one of claims 1 to 9, further comprising expanding a portion of the liner disposed in the wellbore.
11. A method as claimed in any one of claims 1 to 10, further comprising expanding a portion of the liner disposed in the lateral wellbore.
12. A method of expanding a liner extending into a lateral wellbore through a window in casing disposed in a wellbore, comprising:
providing an expander having at least one radially extendable member, the radially extendable member having a first unextended position, a second fully extended position and a range of positions between the first and second positions wherein the radially extendable member moves from the first position upon application of a force to the radially extendable member;
locating the expander inside the liner;
applying the force to the radially extendable member;
engaging the radially extendable member with an inner diameter of the liner;
and expanding the liner across the window, wherein the radially extendable member is positioned within the range for at least a portion of the expansion.
13. A method as claimed in claim 12, wherein expanding the liner across the window includes:
expanding a first portion of the liner disposed in the wellbore having a first set of characteristics to a first diameter and shape;
expanding a second portion of the tubular disposed in the window having a second set of characteristics to a second diameter and shape.
14. A method as claimed in claim 12, wherein expanding the liner across the window includes:
expanding a first portion of the liner disposed in the lateral wellbore having a first set of characteristics to a first diameter and shape;
expanding a second portion of the tubular disposed in the window having a second set of characteristics to a second diameter and shape.
15 15. A method as claimed in any one of claims 1 to 14, further comprising removing at least a portion of the liner extending into the wellbore from the window.
16. A method as claimed in any one of claims 1 to 15, further comprising inserting the liner through the window.
17. A method as claimed in any one of claims 1 to 16, further comprising disposing a material between an interface of the liner and the window to enhance a seal.
18. A method as claimed in claim 17, wherein the material disposed between the interface of the liner and the window prevents movement between an outer surface of the liner and the window.
19. A method as claimed in any one of claims 1 to 18, wherein the liner is expanded into a contacting relationship with the window.
20. A method as claimed in any one of claims 1 to 19, wherein the liner is expanded into a sealing relationship with the window.
21. A method as claimed in any one of claims 1 to 20, further comprising cementing the liner in the lateral wellbore.
22. A method of substantially sealing a liner in a lateral wellbore to a casing disposed in a wellbore, comprising:
a) inserting a liner through an opening in the casing; and b) expanding the liner through the opening into a substantially sealing relationship with the opening.
23. A method as claimed in claim 22, further comprising removing at least a portion of the liner extending into the wellbore from the opening.
24. A method of forming a lateral wellbore, comprising:
inserting a rotary steerable system coupled to a mill/drill into a wellbore having a casing therein;
directing the mill/drill towards a wall of the casing;
cutting a window in the wall of the casing with the mill/drill; and drilling into a formation proximate the window with the mill/drill while advancing the rotary steerable system to form the lateral wellbore.
25. A method as claimed in claim 24, further comprising coupling the rotary steerable system and mill/drill to a liner.
26. A method as claimed in claim 24 or 25, further comprising expanding the liner through the window.
27. A method as claimed in claim 26, wherein the liner is expanded into a contacting relationship with the window.
28. A method as claimed in claim 26, wherein the liner is expanded into a sealing relationship with the window.
CA2512700A 2000-05-05 2001-05-04 Apparatus and methods for forming a lateral wellbore Expired - Fee Related CA2512700C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US20233500P 2000-05-05 2000-05-05
US60/202,335 2000-05-05
CA002406663A CA2406663C (en) 2000-05-05 2001-05-04 Apparatus and methods for forming a lateral wellbore

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002406663A Division CA2406663C (en) 2000-05-05 2001-05-04 Apparatus and methods for forming a lateral wellbore

Publications (2)

Publication Number Publication Date
CA2512700A1 true CA2512700A1 (en) 2001-11-15
CA2512700C CA2512700C (en) 2011-05-03

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Family Applications (1)

Application Number Title Priority Date Filing Date
CA2512700A Expired - Fee Related CA2512700C (en) 2000-05-05 2001-05-04 Apparatus and methods for forming a lateral wellbore

Country Status (1)

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CA (1) CA2512700C (en)

Also Published As

Publication number Publication date
CA2512700C (en) 2011-05-03

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Effective date: 20190506