EP1149225A1 - Method for creating secondary sidetracks in a well system - Google Patents

Method for creating secondary sidetracks in a well system

Info

Publication number
EP1149225A1
EP1149225A1 EP00910636A EP00910636A EP1149225A1 EP 1149225 A1 EP1149225 A1 EP 1149225A1 EP 00910636 A EP00910636 A EP 00910636A EP 00910636 A EP00910636 A EP 00910636A EP 1149225 A1 EP1149225 A1 EP 1149225A1
Authority
EP
European Patent Office
Prior art keywords
sidetrack
primary
liner
sidetracks
well system
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
EP00910636A
Other languages
German (de)
French (fr)
Other versions
EP1149225B1 (en
Inventor
Markus Antonius Van Buren
Johannes Henricus Gerardus Surewaard
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 Internationale Research Maatschappij BV
Original Assignee
Shell Internationale Research Maatschappij BV
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
Application filed by Shell Internationale Research Maatschappij BV filed Critical Shell Internationale Research Maatschappij BV
Priority to EP00910636A priority Critical patent/EP1149225B1/en
Publication of EP1149225A1 publication Critical patent/EP1149225A1/en
Application granted granted Critical
Publication of EP1149225B1 publication Critical patent/EP1149225B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
    • E21B41/0035—Apparatus or methods for multilateral well technology, e.g. for the completion of or workover on wells with one or more lateral branches
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/02—Subsoil filtering
    • E21B43/10—Setting of casings, screens, liners or the like in wells
    • E21B43/103—Setting of casings, screens, liners or the like in wells of expandable casings, screens, liners, or the like

Definitions

  • the invention relates to a method for creating secondary sidetracks in a well system which comprises a main wellbore into which one or more primary sidetracks debouch .
  • a difficulty which arises with such a well system is that conventional wells have a telescoping nature which stems from the fact that a casing is inserted into the main well at various stages of the drilling process and casing sections which are inserted thereafter need to have a smaller outer diameter than the inner diameter of the previously installed casing sections, and that the liner which is subsequently inserted into the primary sidetrack needs to have an outer diameter which is significantly smaller than the inner diameter of the casing of the main wellbore at the branchpoint in order to allow a smooth insertion of the liner from the main wellbore into the primary sidetrack.
  • An object of the present invention is to provide a method for creating one or more secondary sidetracks in a well system in an efficient and economical manner.
  • a method for creating a secondary sidetrack in a well system for production of hydrocarbon fluids which comprises a main wellbore and a primary sidetrack which debouches into the primary wellbore, the method comprising : inserting an unexpanded expandable liner into the primary sidetrack; radially expanding the liner; creating an opening in the wall of the expanded liner; and drilling a secondary sidetrack into the hydrocarbon formation through said opening.
  • the expandable liner is a steel liner which is expanded by pushing or pulling an expansion mandrel which is provided with a conical wear-resistant outer surface and/or rollers through the liner.
  • the expanded liner has an internal diameter which is sufficiently large to allow drilling and/or kick off equipment to be inserted into the primary sidetrack for drilling of one or more secondary sidetrack, which also have an internal width which is sufficiently large to serve as a wellbranch through which hydrocarbon fluids can flow into the well system.
  • the method according to the invention allows to create a root-like well system which provides an optimal drainage of hydrocarbon fluids from a hydrocarbon bearing formation, even if the formation has a low permeability.
  • the expandable liner is formed by a coiled tubing through which drilling fluid is pumped towards a downhole drilling assembly which is used to drill the primary sidetrack and which coiled tubing is radially expanded after the primary sidetrack has been drilled.
  • the secondary sidetrack may be drilled using a coiled tubing which is expanded to form an expanded liner after completion of the drilling activities.
  • the secondary sidetrack may be lined using an expandable slotted liner of which the slots are staggered and open up into diamond shaped apertures upon expansion of the liner.
  • Such an expandable slotted line is known from US patent No. 5,366,012.
  • Such a slotted liner may be surrounded in the inflow region of the secondary sidetrack by an expandable sandscreen, such as a sandscreen which is disclosed in International patent application PCT/EP96/04887.
  • the secondary sidetrack may be an open uncased hole whereas if the reservoir formation is very unstable the secondary sidetrack may be lined with an initially unslotted expanded or unexpanded liner into which perforations are shot using a perforation gun which is known per se.
  • the invention also relates to a root-like well system which has been created in accordance with the invention and which comprises a main wellbore into which one or more primary sidetracks comprising an expanded expandable liner debouch and one or more secondary sidetracks which debouch into the primary sidetrack or sidetracks through one or more openings in the wall of the expanded liner or liners .
  • Fig. 1 is a schematic vertical sectional view of a well system according to the invention.
  • Fig. 2 is a schematic vertical sectional view of a well system according to the invention, which comprises a primary sidetrack into which two secondary sidetracks debouch.
  • a well system 1 which comprises a vertical main wellbore 2 which extends from a wellhead 3 at or near the earth surface 4 into a subsurface formation 5.
  • Three primary sidetracks 6 debouch into the main wellbore 2.
  • a secondary sidetrack 7 debouches into each primary sidetrack 6 through an opening 8 in the wall of an expanded expandable steel liner 9, of which only the secti ⁇ 1 " 1 in the region of each opening 8 is shown.
  • the expanded liner may have an internal width of about seven to eight centimetres.
  • Such an internal width is a minimal requirement to allow a drilling assembly to be inserted into the primary sidetracks 6 which can be used to drill secondary sidetracks 7 of a sufficient width which is necessary to allow hydrocarbon fluids to flow in sufficient quantities through the secondary sidetracks 7 into the primary sidetracks .
  • the main wellbore 2 is cased with an expandable steel casing which is cladded against the wellbore during the expansion process in a similar manner as the expandable liners 9 have been cladded against the wellbore of the primary sidetracks 6.
  • the primary and secondary sidetracks 6 and 7 each extend into hydrocarbon fluid bearing formations 10 which are shown as shaded areas in the drawing.
  • the illustrated well system provides a root-like well configuration which provides an optimum drainage of hydrocarbon fluids from the hydrocarbon fluid bearing formations 10.
  • a vertical primary wellbore 20 from which a primary sidetrack 21 has been drilled away in a horizontal direction.
  • the primary sidetrack 21 is lined with an expandable steel liner 22.
  • the liner 22 is formed by a coiled tubing which has been used during drilling to feed drilling fluid to a drill bit (not shown) and to a hydraulic downhole mud motor (not shown) which is used to rotate the drill bit.
  • a whipstock 25 is inserted and anchored within the liner 22 and a hanger 26 having an internal width of about 7 cm is inserted into the expanded liner 22 which has an internal width of about 10 cm.
  • a drilling assembly (not shown) is inserted through the hanger 26 and is induced by the whipstock 25 to mill an opening into the liner 22 and to subsequently drill the secondary sidetrack 30 into a hydrocarbon fluid bearing formation 31.
  • a conventional steel liner 31 has been inserted into the secondary sidetrack 30 which has an outer diameter of about 7 cm and which is perforated in the well inflow zone by means of a perforating gun (not shown) .
  • first secondary sidetrack 30 After completion of the first secondary sidetrack 30 another whipstock 32 is inserted and anchored inside the expanded liner 22 close to the heel of the lateral primary sidetrack 21 whereupon yet another secondary sidetrack 33 is drilled and completed in the same manner as described with reference to the first secondary sidetrack 30.
  • a steel liner 34 in the second secondary sidetrack either an opening (not shown) is drilled through the wall of the liner 34 and through the whipstock 34 or an already existing fluid passage in the whipstock and a fluid passage in the hanger 35 are used to allow hydrocarbon fluid to flow from the first secondary sidetrack 30 and through the primary sidetrack 21 into the main wellbore 20.

Landscapes

  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Portable Outdoor Equipment (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Road Paving Structures (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

A method is disclosed for creating one or more secondary sidetracks in an oil and/or gas well assembly which comprises a primary wellbore (2) and one or more primary sidetracks (6) so that a root-like multilateral well structure is created. The method makes use of an expandable well liner (9) in the primary sidetracks (6) so as to create a liner having a sufficient internal width to allow sidetracking equipment to be inserted and operated in the primary sidetrack to drill and complete the secondary sidetracks (7).

Description

METHOD FOR CREATING SECONDARY SIDETRACKS IN A WELL SYSTEM
Background of the Invention
The invention relates to a method for creating secondary sidetracks in a well system which comprises a main wellbore into which one or more primary sidetracks debouch .
Such a well system is known from International patent application WO 98/49424.
A difficulty which arises with such a well system is that conventional wells have a telescoping nature which stems from the fact that a casing is inserted into the main well at various stages of the drilling process and casing sections which are inserted thereafter need to have a smaller outer diameter than the inner diameter of the previously installed casing sections, and that the liner which is subsequently inserted into the primary sidetrack needs to have an outer diameter which is significantly smaller than the inner diameter of the casing of the main wellbore at the branchpoint in order to allow a smooth insertion of the liner from the main wellbore into the primary sidetrack.
As a result the liner of the primary sidetrack has such a small diameter that it is hardly feasible and economically unattractive to drill secondary sidetracks away from the primary sidetrack. An object of the present invention is to provide a method for creating one or more secondary sidetracks in a well system in an efficient and economical manner. Summary of the Invention
In accordance with the present invention a method is provided for creating a secondary sidetrack in a well system for production of hydrocarbon fluids which comprises a main wellbore and a primary sidetrack which debouches into the primary wellbore, the method comprising : inserting an unexpanded expandable liner into the primary sidetrack; radially expanding the liner; creating an opening in the wall of the expanded liner; and drilling a secondary sidetrack into the hydrocarbon formation through said opening.
Preferably the expandable liner is a steel liner which is expanded by pushing or pulling an expansion mandrel which is provided with a conical wear-resistant outer surface and/or rollers through the liner. The expanded liner has an internal diameter which is sufficiently large to allow drilling and/or kick off equipment to be inserted into the primary sidetrack for drilling of one or more secondary sidetrack, which also have an internal width which is sufficiently large to serve as a wellbranch through which hydrocarbon fluids can flow into the well system.
Hence the method according to the invention allows to create a root-like well system which provides an optimal drainage of hydrocarbon fluids from a hydrocarbon bearing formation, even if the formation has a low permeability.
In an attractive embodiment of the method according to the invention the expandable liner is formed by a coiled tubing through which drilling fluid is pumped towards a downhole drilling assembly which is used to drill the primary sidetrack and which coiled tubing is radially expanded after the primary sidetrack has been drilled.
Also the secondary sidetrack may be drilled using a coiled tubing which is expanded to form an expanded liner after completion of the drilling activities. Alternatively the secondary sidetrack may be lined using an expandable slotted liner of which the slots are staggered and open up into diamond shaped apertures upon expansion of the liner. Such an expandable slotted line is known from US patent No. 5,366,012. Such a slotted liner may be surrounded in the inflow region of the secondary sidetrack by an expandable sandscreen, such as a sandscreen which is disclosed in International patent application PCT/EP96/04887. In stable reservoir formations the secondary sidetrack may be an open uncased hole whereas if the reservoir formation is very unstable the secondary sidetrack may be lined with an initially unslotted expanded or unexpanded liner into which perforations are shot using a perforation gun which is known per se.
The invention also relates to a root-like well system which has been created in accordance with the invention and which comprises a main wellbore into which one or more primary sidetracks comprising an expanded expandable liner debouch and one or more secondary sidetracks which debouch into the primary sidetrack or sidetracks through one or more openings in the wall of the expanded liner or liners .
It will be understood that the use of expandable tubulars in a multilateral well system makes it possible that the well tubulars in the primary or mother well and in the primary and secondary sidetracks or well branches have a substantially equal internal width, so that a monobore multilateral well is created. In such a monobore well system it is possible to drill tertiary sidetracks away from the secondary sidetracks, which sidetracking process can be repeated again and again so that a truly root-like multilateral well system is created. Brief Description of the drawings
Preferred embodiments of the method and system according to the present invention will be described with reference to the drawings, in which: Fig. 1 is a schematic vertical sectional view of a well system according to the invention; and
Fig. 2 is a schematic vertical sectional view of a well system according to the invention, which comprises a primary sidetrack into which two secondary sidetracks debouch.
Detailed Description of preferred Embodiments
Referring now to Fig. 1 there is shown a well system 1 according to the present invention which comprises a vertical main wellbore 2 which extends from a wellhead 3 at or near the earth surface 4 into a subsurface formation 5. Three primary sidetracks 6 debouch into the main wellbore 2. A secondary sidetrack 7 debouches into each primary sidetrack 6 through an opening 8 in the wall of an expanded expandable steel liner 9, of which only the secti^1"1 in the region of each opening 8 is shown.
The* use of expanded liners 9 maximizes the internal width of the liners 9. Thus, if the wellbore of each sidetrack has a width of about 10 cm, the expanded liner may have an internal width of about seven to eight centimetres.
Such an internal width is a minimal requirement to allow a drilling assembly to be inserted into the primary sidetracks 6 which can be used to drill secondary sidetracks 7 of a sufficient width which is necessary to allow hydrocarbon fluids to flow in sufficient quantities through the secondary sidetracks 7 into the primary sidetracks .
Preferably also the main wellbore 2 is cased with an expandable steel casing which is cladded against the wellbore during the expansion process in a similar manner as the expandable liners 9 have been cladded against the wellbore of the primary sidetracks 6.
This allows a further increase in the internal width of the liners 9 and of the secondary sidetracks 7. The primary and secondary sidetracks 6 and 7 each extend into hydrocarbon fluid bearing formations 10 which are shown as shaded areas in the drawing.
It will be understood that the illustrated well system provides a root-like well configuration which provides an optimum drainage of hydrocarbon fluids from the hydrocarbon fluid bearing formations 10.
Referring now to Fig. 2 there is shown a vertical primary wellbore 20 from which a primary sidetrack 21 has been drilled away in a horizontal direction. The primary sidetrack 21 is lined with an expandable steel liner 22. Preferably the liner 22 is formed by a coiled tubing which has been used during drilling to feed drilling fluid to a drill bit (not shown) and to a hydraulic downhole mud motor (not shown) which is used to rotate the drill bit.
After completion of drilling the coiled tubing is expanded such that it is cladded against the wellbore and subsequently serves as a steel lining of the wellbore of the primary sidetrack 21. Subsequently a 4.5 inch (= about 12 cm) shoe 22 and a plug 23 are installed near the toe 24 of the primary sidetrack 21 inside the liner 22.
Then a whipstock 25 is inserted and anchored within the liner 22 and a hanger 26 having an internal width of about 7 cm is inserted into the expanded liner 22 which has an internal width of about 10 cm. Then a drilling assembly (not shown) is inserted through the hanger 26 and is induced by the whipstock 25 to mill an opening into the liner 22 and to subsequently drill the secondary sidetrack 30 into a hydrocarbon fluid bearing formation 31.
In the example shown a conventional steel liner 31 has been inserted into the secondary sidetrack 30 which has an outer diameter of about 7 cm and which is perforated in the well inflow zone by means of a perforating gun (not shown) .
After completion of the first secondary sidetrack 30 another whipstock 32 is inserted and anchored inside the expanded liner 22 close to the heel of the lateral primary sidetrack 21 whereupon yet another secondary sidetrack 33 is drilled and completed in the same manner as described with reference to the first secondary sidetrack 30. After insertion of a steel liner 34 in the second secondary sidetrack either an opening (not shown) is drilled through the wall of the liner 34 and through the whipstock 34 or an already existing fluid passage in the whipstock and a fluid passage in the hanger 35 are used to allow hydrocarbon fluid to flow from the first secondary sidetrack 30 and through the primary sidetrack 21 into the main wellbore 20.

Claims

C L I M S
1. A method for creating a secondary sidetrack in a well system for production of hydrocarbon fluids from a hydrocarbon formation, which well system comprises a main wellbore and a primary sidetrack which debouches into the primary wellbore, the method comprising inserting an unexpanded expandable liner into the primary sidetrack and radially expanding the liner; characterized in that an opening is created in the wall of the expanded liner in the primary sidetrack; and that a secondary sidetrack is drilled into the hydrocarbon bearing formation through said opening.
2. The method according to claim 1, wherein the expandable liner is formed by a coiled tubing through which drilling fluid is pumped towards a downhole drilling assembly which is used to drill the primary sidetrack and which coiled tubing is radially expanded after the primary sidetrack has been drilled.
3. The method according to claim 1 or 2, wherein the secondary sidetrack is drilled with a drilling assembly which is connected to a coiled tubing, which tubing is expanded after the secondary sidetrack has been drilled to form a lining in the secondary sidetrack.
4. The method according to claim 1 or 2, wherein the secondary sidetrack is lined along at least part of its length with an expandable slotted liner which is expanded inside the secondary sidetrack such that a series of staggered slots in the liner open up into diamond shaped apertures .
5. The method according to claim 4, wherein an expandable sandscreen is arranged around the expandable slotted liner m the zone where hydrocarbon fluids flow into the well systerr.
6. The method according to claim 1, wherein an unexpandable liner xs inserted into the secondary sidetrack which liner is perforated in the zone where hydrocarbon fluids flow into the well system.
7. The method according to claim 1, wherein the capillary sidetrack is uncased along at least part of its length .
8. The method according to claim 1, wherein a plurality of primary sidetracks debouch into the primary wellbore and wherein a plurality of secondary sidetracks debouch into at least one of the primary sidetracks .
9. A well system comprising at least one primary sidetrack and at least one secondary sidetrack wherein the primary sidetrack comprises an expanded expandable liner which comprises an opening into which a secondary sidetrack debouches.
10. The well system of claim 9, wherein the expanded liner in the primary sidetrack has an internal width which is substantially equal to the internal width of a casing in the primary wellbore.
11. The well system of claim 10, wherein one or more tertiary sidetracks debouch into at least one secondary sidetrack so that a root-like multilateral well system is created.
EP00910636A 1999-02-01 2000-02-01 Method for creating secondary sidetracks in a well system Expired - Lifetime EP1149225B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP00910636A EP1149225B1 (en) 1999-02-01 2000-02-01 Method for creating secondary sidetracks in a well system

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP99300717 1999-02-01
EP99300717 1999-02-01
PCT/EP2000/000791 WO2000046484A1 (en) 1999-02-01 2000-02-01 Method for creating secondary sidetracks in a well system
EP00910636A EP1149225B1 (en) 1999-02-01 2000-02-01 Method for creating secondary sidetracks in a well system

Publications (2)

Publication Number Publication Date
EP1149225A1 true EP1149225A1 (en) 2001-10-31
EP1149225B1 EP1149225B1 (en) 2004-04-14

Family

ID=8241204

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00910636A Expired - Lifetime EP1149225B1 (en) 1999-02-01 2000-02-01 Method for creating secondary sidetracks in a well system

Country Status (21)

Country Link
EP (1) EP1149225B1 (en)
CN (1) CN1205403C (en)
AR (1) AR022692A1 (en)
AT (1) ATE264451T1 (en)
AU (1) AU764042B2 (en)
BR (1) BR0007696B1 (en)
CA (1) CA2357719C (en)
CO (1) CO5211015A1 (en)
DE (1) DE60009861T2 (en)
DK (1) DK1149225T3 (en)
EA (1) EA002465B1 (en)
EG (1) EG22061A (en)
GC (1) GC0000090A (en)
ID (1) ID29532A (en)
MY (1) MY121129A (en)
NO (1) NO331427B1 (en)
NZ (1) NZ512774A (en)
OA (1) OA11826A (en)
TR (1) TR200102201T2 (en)
UA (1) UA73296C2 (en)
WO (1) WO2000046484A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10316627B2 (en) 2014-08-13 2019-06-11 Shell Oil Company Assembly and method for creating an expanded tubular element in a borehole
US10422198B2 (en) 2016-05-09 2019-09-24 Scientific Drilling International, Inc. Magnetic ranging from behind a magnetic shield

Families Citing this family (103)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7040420B2 (en) 1994-10-14 2006-05-09 Weatherford/Lamb, Inc. Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US7228901B2 (en) 1994-10-14 2007-06-12 Weatherford/Lamb, Inc. Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US7108084B2 (en) 1994-10-14 2006-09-19 Weatherford/Lamb, Inc. Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US7013997B2 (en) 1994-10-14 2006-03-21 Weatherford/Lamb, Inc. Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US6868906B1 (en) 1994-10-14 2005-03-22 Weatherford/Lamb, Inc. Closed-loop conveyance systems for well servicing
US7036610B1 (en) 1994-10-14 2006-05-02 Weatherford / Lamb, Inc. Apparatus and method for completing oil and gas wells
US7100710B2 (en) 1994-10-14 2006-09-05 Weatherford/Lamb, Inc. Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US7147068B2 (en) 1994-10-14 2006-12-12 Weatherford / Lamb, Inc. Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
US7509722B2 (en) 1997-09-02 2009-03-31 Weatherford/Lamb, Inc. Positioning and spinning device
US7140445B2 (en) 1997-09-02 2006-11-28 Weatherford/Lamb, Inc. Method and apparatus for drilling with casing
US6742596B2 (en) 2001-05-17 2004-06-01 Weatherford/Lamb, Inc. Apparatus and methods for tubular makeup interlock
GB9815809D0 (en) 1998-07-22 1998-09-16 Appleton Robert P Casing running tool
GB2340857A (en) 1998-08-24 2000-03-01 Weatherford Lamb An apparatus for facilitating the connection of tubulars and alignment with a top drive
GB2340858A (en) 1998-08-24 2000-03-01 Weatherford Lamb Methods and apparatus for facilitating the connection of tubulars using a top drive
GB2340859A (en) 1998-08-24 2000-03-01 Weatherford Lamb Method and apparatus for facilitating the connection of tubulars using a top drive
US7231985B2 (en) 1998-11-16 2007-06-19 Shell Oil Company Radial expansion of tubular members
US6823937B1 (en) 1998-12-07 2004-11-30 Shell Oil Company Wellhead
AU6981001A (en) 1998-11-16 2002-01-02 Shell Oil Co Radial expansion of tubular members
US7357188B1 (en) 1998-12-07 2008-04-15 Shell Oil Company Mono-diameter wellbore casing
US6557640B1 (en) 1998-12-07 2003-05-06 Shell Oil Company Lubrication and self-cleaning system for expansion mandrel
US7121352B2 (en) 1998-11-16 2006-10-17 Enventure Global Technology Isolation of subterranean zones
US6739392B2 (en) 1998-12-07 2004-05-25 Shell Oil Company Forming a wellbore casing while simultaneously drilling a wellbore
US7185710B2 (en) 1998-12-07 2007-03-06 Enventure Global Technology Mono-diameter wellbore casing
US7363984B2 (en) 1998-12-07 2008-04-29 Enventure Global Technology, Llc System for radially expanding a tubular member
US7552776B2 (en) 1998-12-07 2009-06-30 Enventure Global Technology, Llc Anchor hangers
GB2344606B (en) 1998-12-07 2003-08-13 Shell Int Research Forming a wellbore casing by expansion of a tubular member
CA2310878A1 (en) 1998-12-07 2000-12-07 Shell Internationale Research Maatschappij B.V. Lubrication and self-cleaning system for expansion mandrel
US7195064B2 (en) 1998-12-07 2007-03-27 Enventure Global Technology Mono-diameter wellbore casing
US7188687B2 (en) 1998-12-22 2007-03-13 Weatherford/Lamb, Inc. Downhole filter
WO2000037766A2 (en) 1998-12-22 2000-06-29 Weatherford/Lamb, Inc. Procedures and equipment for profiling and jointing of pipes
GB2347441B (en) 1998-12-24 2003-03-05 Weatherford Lamb Apparatus and method for facilitating the connection of tubulars using a top drive
GB2345074A (en) 1998-12-24 2000-06-28 Weatherford Lamb Floating joint to facilitate the connection of tubulars using a top drive
US7311148B2 (en) 1999-02-25 2007-12-25 Weatherford/Lamb, Inc. Methods and apparatus for wellbore construction and completion
US6857487B2 (en) 2002-12-30 2005-02-22 Weatherford/Lamb, Inc. Drilling with concentric strings of casing
US6896075B2 (en) 2002-10-11 2005-05-24 Weatherford/Lamb, Inc. Apparatus and methods for drilling with casing
AU770359B2 (en) 1999-02-26 2004-02-19 Shell Internationale Research Maatschappij B.V. Liner hanger
US7055608B2 (en) 1999-03-11 2006-06-06 Shell Oil Company Forming a wellbore casing while simultaneously drilling a wellbore
CA2306656C (en) 1999-04-26 2006-06-06 Shell Internationale Research Maatschappij B.V. Expandable connector for borehole tubes
US7350563B2 (en) 1999-07-09 2008-04-01 Enventure Global Technology, L.L.C. System for lining a wellbore casing
GC0000136A (en) 1999-08-09 2005-06-29 Shell Int Research Multilateral wellbore system.
US7048067B1 (en) 1999-11-01 2006-05-23 Shell Oil Company Wellbore casing repair
US7516790B2 (en) 1999-12-03 2009-04-14 Enventure Global Technology, Llc Mono-diameter wellbore casing
US7234531B2 (en) 1999-12-03 2007-06-26 Enventure Global Technology, Llc Mono-diameter wellbore casing
US7216727B2 (en) 1999-12-22 2007-05-15 Weatherford/Lamb, Inc. Drilling bit for drilling while running casing
US7334650B2 (en) 2000-04-13 2008-02-26 Weatherford/Lamb, Inc. Apparatus and methods for drilling a wellbore using casing
US7325610B2 (en) 2000-04-17 2008-02-05 Weatherford/Lamb, Inc. Methods and apparatus for handling and drilling with tubulars or casing
GB0010378D0 (en) 2000-04-28 2000-06-14 Bbl Downhole Tools Ltd Expandable apparatus for drift and reaming a borehole
US7100684B2 (en) 2000-07-28 2006-09-05 Enventure Global Technology Liner hanger with standoffs
GB2365463B (en) 2000-08-01 2005-02-16 Renovus Ltd Drilling method
WO2002023007A1 (en) 2000-09-18 2002-03-21 Shell Oil Company Liner hanger with sliding sleeve valve
GB2389597B (en) 2000-10-02 2005-05-18 Shell Oil Co Plastically deforming and radially expanding a tubular member
US7100685B2 (en) 2000-10-02 2006-09-05 Enventure Global Technology Mono-diameter wellbore casing
CA2428819A1 (en) 2001-01-03 2002-07-11 Enventure Global Technology Mono-diameter wellbore casing
US7410000B2 (en) 2001-01-17 2008-08-12 Enventure Global Technology, Llc. Mono-diameter wellbore casing
GB0109993D0 (en) * 2001-04-24 2001-06-13 E Tech Ltd Method
CA2453034C (en) 2001-07-06 2010-09-14 Enventure Global Technology Liner hanger
US7258168B2 (en) 2001-07-27 2007-08-21 Enventure Global Technology L.L.C. Liner hanger with slip joint sealing members and method of use
GB2409217B (en) 2001-08-20 2005-12-28 Enventure Global Technology Apparatus for radially expanding tubular members including an adjustable expansion device
US7546881B2 (en) 2001-09-07 2009-06-16 Enventure Global Technology, Llc Apparatus for radially expanding and plastically deforming a tubular member
CA2459910C (en) 2001-09-07 2010-04-13 Enventure Global Technology Adjustable expansion cone assembly
AU2002360373A1 (en) 2001-11-12 2003-05-26 Enventure Global Technlogy Mono diameter wellbore casing
AU2002367348A1 (en) 2001-12-27 2003-07-24 Enventure Global Technology Seal receptacle using expandable liner hanger
US7377326B2 (en) 2002-08-23 2008-05-27 Enventure Global Technology, L.L.C. Magnetic impulse applied sleeve method of forming a wellbore casing
US7424918B2 (en) 2002-08-23 2008-09-16 Enventure Global Technology, L.L.C. Interposed joint sealing layer method of forming a wellbore casing
AU2003227025A1 (en) 2002-03-08 2003-09-22 Shell Internationale Research Maatschappij B.V. Steerable soil penetration system
GB0206227D0 (en) 2002-03-16 2002-05-01 Weatherford Lamb Bore-lining and drilling
GB2426993B (en) 2002-05-29 2007-05-02 Enventure Global Technology System for radially expanding a tubular member
WO2003104601A2 (en) 2002-06-10 2003-12-18 Enventure Global Technology Mono-diameter wellbore casing
US6994176B2 (en) 2002-07-29 2006-02-07 Weatherford/Lamb, Inc. Adjustable rotating guides for spider or elevator
US6899186B2 (en) 2002-12-13 2005-05-31 Weatherford/Lamb, Inc. Apparatus and method of drilling with casing
AU2003263859A1 (en) 2002-09-20 2004-04-08 Enventure Global Technology Protective sleeve for expandable tubulars
GB2410280B (en) 2002-09-20 2007-04-04 Enventure Global Technology Self-lubricating expansion mandrel for expandable tubular
AU2003270774A1 (en) 2002-09-20 2004-04-08 Enventure Global Technlogy Bottom plug for forming a mono diameter wellbore casing
US7303022B2 (en) 2002-10-11 2007-12-04 Weatherford/Lamb, Inc. Wired casing
US7886831B2 (en) 2003-01-22 2011-02-15 Enventure Global Technology, L.L.C. Apparatus for radially expanding and plastically deforming a tubular member
GB2433281B (en) 2003-01-27 2007-08-01 Enventure Global Technology Lubrication system for radially expanding tubular members
US7128154B2 (en) 2003-01-30 2006-10-31 Weatherford/Lamb, Inc. Single-direction cementing plug
USRE42877E1 (en) 2003-02-07 2011-11-01 Weatherford/Lamb, Inc. Methods and apparatus for wellbore construction and completion
GB2415983B (en) 2003-02-26 2007-09-05 Enventure Global Technology Apparatus for radially expanding and plastically deforming a tubular member
WO2004076804A1 (en) 2003-02-27 2004-09-10 Weatherford/Lamb Inc. Drill shoe
US7503397B2 (en) 2004-07-30 2009-03-17 Weatherford/Lamb, Inc. Apparatus and methods of setting and retrieving casing with drilling latch and bottom hole assembly
US7360594B2 (en) 2003-03-05 2008-04-22 Weatherford/Lamb, Inc. Drilling with casing latch
GB2436484B (en) * 2003-03-05 2007-11-07 Weatherford Lamb Full bore lined wellbores
CA2517883C (en) * 2003-03-05 2010-01-12 Weatherford/Lamb, Inc. Full bore lined wellbores
CA2517895C (en) 2003-03-05 2009-12-01 Weatherford/Lamb, Inc. Casing running and drilling system
WO2004090279A1 (en) 2003-04-04 2004-10-21 Weatherford/Lamb, Inc. Method and apparatus for handling wellbore tubulars
US20050166387A1 (en) 2003-06-13 2005-08-04 Cook Robert L. Method and apparatus for forming a mono-diameter wellbore casing
US7712522B2 (en) 2003-09-05 2010-05-11 Enventure Global Technology, Llc Expansion cone and system
US7264067B2 (en) 2003-10-03 2007-09-04 Weatherford/Lamb, Inc. Method of drilling and completing multiple wellbores inside a single caisson
US7284617B2 (en) 2004-05-20 2007-10-23 Weatherford/Lamb, Inc. Casing running head
CA2577083A1 (en) 2004-08-13 2006-02-23 Mark Shuster Tubular member expansion apparatus
US8967297B2 (en) 2007-08-23 2015-03-03 Schlumberger Technology Corporation Well construction using small laterals
CN102182403B (en) * 2011-04-28 2016-06-29 王萍萍 Drilling type well completion technology for fishbone branch borehole
CN103615224B (en) * 2013-11-08 2016-02-10 中国石油天然气股份有限公司 Method and Well Pattern Structure of Solvent Improving Heavy Oil Reservoir Recovery by Steam-Assisted Gravity Drainage
EP2884042A1 (en) * 2013-12-13 2015-06-17 Welltec A/S Downhole completion system and method
US9714558B2 (en) * 2014-02-07 2017-07-25 Weatherford Technology Holdings, Llc Open hole expandable junction
CN104265261B (en) * 2014-08-11 2017-06-13 中国石油天然气股份有限公司 Fishbone branched horizontal well structure
US10815766B2 (en) * 2015-02-27 2020-10-27 Schlumberger Technology Corporation Vertical drilling and fracturing methodology
US11840909B2 (en) 2016-09-12 2023-12-12 Schlumberger Technology Corporation Attaining access to compromised fractured production regions at an oilfield
EA201991640A1 (en) 2017-01-04 2019-11-29 LINE INTENSIFICATION, INCLUDING HYDRAULIC BREAKTHROUGH LAYER THROUGH SPEED CHANNELS
WO2019014161A1 (en) 2017-07-10 2019-01-17 Schlumberger Technology Corporation Controlled release of hose
US11203901B2 (en) 2017-07-10 2021-12-21 Schlumberger Technology Corporation Radial drilling link transmission and flex shaft protective cover
US11193332B2 (en) 2018-09-13 2021-12-07 Schlumberger Technology Corporation Slider compensated flexible shaft drilling system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4807704A (en) * 1987-09-28 1989-02-28 Atlantic Richfield Company System and method for providing multiple wells from a single wellbore
MY108743A (en) * 1992-06-09 1996-11-30 Shell Int Research Method of greating a wellbore in an underground formation
US5435400B1 (en) * 1994-05-25 1999-06-01 Atlantic Richfield Co Lateral well drilling
MY121223A (en) * 1995-01-16 2006-01-28 Shell Int Research Method of creating a casing in a borehole
MY116920A (en) * 1996-07-01 2004-04-30 Shell Int Research Expansion of tubings
MY119637A (en) * 1997-04-28 2005-06-30 Shell Int Research Expandable well screen.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0046484A1 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10316627B2 (en) 2014-08-13 2019-06-11 Shell Oil Company Assembly and method for creating an expanded tubular element in a borehole
US10422198B2 (en) 2016-05-09 2019-09-24 Scientific Drilling International, Inc. Magnetic ranging from behind a magnetic shield

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DK1149225T3 (en) 2004-05-10
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ATE264451T1 (en) 2004-04-15
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CO5211015A1 (en) 2002-10-30
AU3278100A (en) 2000-08-25
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BR0007696B1 (en) 2008-11-18
AU764042B2 (en) 2003-08-07
CN1339083A (en) 2002-03-06
NO20013754L (en) 2001-09-28
UA73296C2 (en) 2005-07-15
OA11826A (en) 2005-08-17
DE60009861T2 (en) 2004-09-02
CA2357719A1 (en) 2000-08-10
GC0000090A (en) 2004-06-30
NO331427B1 (en) 2011-12-27
DE60009861D1 (en) 2004-05-19
CN1205403C (en) 2005-06-08
CA2357719C (en) 2009-06-02
WO2000046484A1 (en) 2000-08-10

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