CA2161536A1 - Drilling kick-off device - Google Patents

Drilling kick-off device

Info

Publication number
CA2161536A1
CA2161536A1 CA002161536A CA2161536A CA2161536A1 CA 2161536 A1 CA2161536 A1 CA 2161536A1 CA 002161536 A CA002161536 A CA 002161536A CA 2161536 A CA2161536 A CA 2161536A CA 2161536 A1 CA2161536 A1 CA 2161536A1
Authority
CA
Canada
Prior art keywords
open
ended tube
guide element
kick
drilling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002161536A
Other languages
French (fr)
Other versions
CA2161536C (en
Inventor
Michael Robert Konopczynski
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shell Canada Ltd
Original Assignee
Michael Robert Konopczynski
Shell Canada Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CA002095306A external-priority patent/CA2095306A1/en
Application filed by Michael Robert Konopczynski, Shell Canada Limited filed Critical Michael Robert Konopczynski
Priority to CA002161536A priority Critical patent/CA2161536C/en
Publication of CA2161536A1 publication Critical patent/CA2161536A1/en
Application granted granted Critical
Publication of CA2161536C publication Critical patent/CA2161536C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)
  • Earth Drilling (AREA)

Abstract

Kick-off device (1) in aid of drilling a pair of opposite deviated borehole branches in an underground formation from a single borehole comprising an open-ended tube (2) provided at its upper end with connecting means to join the open-ended tube (2) to a string of casing, and a guide element (4) arranged in the open-ended tube (2) near its lower end, which guide element (4) includes two hollow slanted guide ways (6 and 7) arranged on opposite sides of the guide element (4), wherein the wall of the open-ended tube (2) has elongated openings (9 and 10) facing the slanted guide ways (6 and 7).
CA002161536A 1993-04-30 1994-04-29 Drilling kick-off device Expired - Fee Related CA2161536C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002161536A CA2161536C (en) 1993-04-30 1994-04-29 Drilling kick-off device

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CA002095306A CA2095306A1 (en) 1993-04-30 1993-04-30 Drilling kick-off device
CA2095306 1993-04-30
CA002161536A CA2161536C (en) 1993-04-30 1994-04-29 Drilling kick-off device
PCT/EP1994/001446 WO1994025721A1 (en) 1993-04-30 1994-04-29 Drilling kick-off device

Publications (2)

Publication Number Publication Date
CA2161536A1 true CA2161536A1 (en) 1994-11-10
CA2161536C CA2161536C (en) 2006-07-18

Family

ID=25676133

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002161536A Expired - Fee Related CA2161536C (en) 1993-04-30 1994-04-29 Drilling kick-off device

Country Status (1)

Country Link
CA (1) CA2161536C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101824964B (en) * 2010-04-16 2013-01-23 张建华 Downhole drill of intelligent underground multi-branch horizontal drilling completion system

Also Published As

Publication number Publication date
CA2161536C (en) 2006-07-18

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed