Source: https://patents.google.com/patent/EP1297240B1/en
Timestamp: 2019-10-20 02:36:24
Document Index: 546827155

Matched Legal Cases: ['art 40', 'art 40', 'art 40', 'art 40', 'art 40', 'art 40', 'art 40', 'art 40']

EP1297240B1 - A method for drilling with casing - Google Patents
A method for drilling with casing Download PDF
EP1297240B1
EP1297240B1 EP01933493A EP01933493A EP1297240B1 EP 1297240 B1 EP1297240 B1 EP 1297240B1 EP 01933493 A EP01933493 A EP 01933493A EP 01933493 A EP01933493 A EP 01933493A EP 1297240 B1 EP1297240 B1 EP 1297240B1
EP01933493A
EP1297240A1 (en
Per G. Angman
2000-06-09 Priority to CA 2311158 priority Critical patent/CA2311158A1/en
2000-06-09 Priority to CA2311158 priority
2001-05-14 Application filed by Tesco Corp Canada filed Critical Tesco Corp Canada
2001-05-14 Priority to PCT/CA2001/000681 priority patent/WO2001094738A1/en
2003-04-02 Publication of EP1297240A1 publication Critical patent/EP1297240A1/en
2006-09-13 Publication of EP1297240B1 publication Critical patent/EP1297240B1/en
238000005553 drilling Methods 0 abstract claims description title 130
239000011499 joint compound Substances 0 description 6
The drilling of wells, for example, for oil and gas production conventionally employs relatively small diameter strings of drill pipe to which is secured a drill bit of somewhat larger diameter. After a selected portion of the wellbore has been drilled, the well bore is usually lined with a string of tubulars known as casing. The casing (herein used to encompass any wellbore liner) has a smaller diameter than the drill bit. This conventional system which requires sequentially driiiing the borehole using drill pipe with a drill bit attached thereto, pulling the drill pipe out of the borehole and running casing into the borehole is time consuming and costly. In addition, control of the well is difficult during the period that the drill pipe is being removed and the casing is being run in.
In casing drilling, the drilling assemblies can extend out a considerable distance, for example 23-30cm, (75 to 150 feet), in front of the end of the casing. Thus, during the drilling process the distal end of the casing does not extend fully to the bottom of the well. Whenever the drilling assemblies, including the directional assembly if any, are removed, the distal end of the casing is a considerable distance from the bottom of the borehole. However, it is desirable to have the borehole fully cased to the bottom and, therefore, once the drilling assemblies are removed often attempts are made to advance the casing to the bottom. This process has experienced considerable difficulties. In particular, while advancing the casing to the bottom it can become hung up on the sides of the wellbore and/or, depending on the integrity of the formation, it can steer off away from the drilled wellbore and into the formation. The borehole can also cave-in in the intervening period between removing the bottom hole assemblies and attempting to move the casing downhole. The problems increase with increased time delay between stopping drilling and advancing the casing.
Figure 1 shows a schematic, vertical section through a well and illustrates aspects of a drilling process according to the present invention;
Figure 2 shows a schematic vertical section through a well and illustrates further aspects of the present invention;
Figure 3 shows a schematic vertical section through a well and illustrates other aspects of the present invention.
Referring to Figure 1, a wellbore 10 is shown during a drilling operation. Wellbore 10 extends between surface 12 and bottom 14 of the wellbore. A drill string 16 formed of casing extends from surface into the wellbore. A drilling assembly 18 is connected at the distal end 16' of the drill string and extends a distance d from distal end 16' to total depth 14. Drilling assembly 18 includes a pilot bit 19 and a plurality of underreamers 20. Also included in drilling assembly are a drill lock member 22 for engaging the drilling assembly to the drill string, a drill collar 24, a stabilizer 25, a non-magnetic drill collar 26 including an MWD survey instrument and mud pulse generator 27 and a mud motor 28 for driving the bits 19 and 20. In such an arrangement the distance d is about 30 to 36 m (100 to 120 feet). This distance can be reduced in a non-directional drilling operation and/or by use of a non-magnetic MWD.
Drilling assembly 18 is connected into drill string 16 by means of latches on drill lock member 22. As will be appreciated by a person skilled in the art, the latches are activated to retract by manipulation of member 22. Similar assemblies are available, for example in stage cementing collars, available from Davis-Lynch, Inc., Pearland, Texas.
Referring now to Figure 2, it shows a vertical section through another well in which the drill string 16 has been advanced down over the drilling assembly 18. While in Figure 1 member 22 is actuated by a work string, in Figure 2 member 22 is actuated by means of a fluid-conveyed dart 40 (shown in actuating position, partially inserted into member 22). Dart 40 is introduced by opening briefly the surface well head and is conveyed with drilling fluid circulation downhole. Dart 40 requires no attached work string and is conveyed by fluid flow into engagement with the drilling assembly. As will be appreciated, the dart can be, for example, formed at its leading edge to act against and depress shoulders on member 22 that in turn cause the disengagement of the locking means on member 22 from drill string 16.
Referring to Figure 3, another form of casing drilling is shown. The process is commonly known as liner drilling wherein a borehole 10a is drilled using a liner 44 with a drilling assembly 18a connected thereto. As will be appreciated, a liner is casing that does not extend all the way to the surface. A string of drill pipe 46 is connected via a liner hanger 47 to the liner. The string of drill pipe extends to surface (not shown). During the drilling operation, advancement of liner 44 is made by adding at surface further joints of drill pipe to the drill pipe string 46. Liner drilling is usually conducted through an already drilled wellbore 10 that can be lined with casing 16a.
Drilling assembly 18a is engaged to the distal end of liner 44 by latches or other locking means on a lock member 22. Drilling assembly 18a can extend out beyond the end of liner 44 a distance d of between about 10 and 150 feet depending on the components included in the drilling assembly.
Lock member 22 can be manipulated to release from engagement with liner 44. In accordance with the present invention, when it is desired to remove the drilling assembly because, for example, one of the drilling assembly components requires maintenance/replacement or the drilling is complete, a release dart 40b is launched. Dart 40b is conveyed by a flow of fluid and acts on member 22 to cause the locking means of the member to release from engagement with the liner. Dart 40b can be launched from surface through drill pipe 46. Alternately, dart 40b can be installed downhole during the drilling operation such as, for example, in liner hanger 47. Dart 40b can include a bore therethrough such that the drilling fluid can pass the dart during the drilling operation. When it is desired to launch the dart, a bore sealing member such as a ball is released from surface to seat in the bore of the dart such that it is released, by fluid pressure, from its mounted position to act on the locking means of member 22.
Liner 44 can then be advanced towards borehole bottom 14 by reaming over the drilling assembly until the liner is at a desired depth. As such, drilling assembly 18a is positioned in part within liner 44. The drilling assembly can then be removed by disconnecting drill pipe string 46 from liner 44 and removing the drill pipe string from the well. A work string (not shown) is then run in through the wellbore and into liner 44 to engage drilling assembly 18a and pull it to surface.
It is to be understood that while mechanical manipulation of the drill lock has been shown in Figures 1 to 3, the drill lock can alternatively be selected to permit manipulation by mud pulse, electric or electromagnetic means. However these means are not conducive to illustration by drawings.
A method for drilling a well (10) with a well casing (16) as at least a portion of an elongated tubular drill string and a drilling assembly (18) retrievable from the lower distal end of the drill string without withdrawing the well casing from a wellbore being formed by the drilling assembly, the method comprising: providing the casing (16) as at least a portion of the drill string (16); providing the drill string (16) with the drilling assembly (18) engaged at the distal end thereof; inserting the drill string (16) and the drilling assembly (18) into the wellbore and driving the drilling assembly to operate at the bottom of the wellbore to extend the wellbore, the wellbore being formed having a diameter greater than the diameter of the drill string (16); actuating the drilling assembly to disengage from the distal end of the drill string; advancing the drill string (16) over the drilling assembly (18) toward total depth; removing the drilling assembly out of the wellbore through the drill string without removing the drill string from the wellbore; and leaving the casing portion of the drill string in the wellbore.
The method of claim 1 wherein the drill string is advanced substantially to the bottom of the wellbore prior to removing the drilling assembly.
The method of claim 1 or 2 wherein the step of actuating the drilling assembly to disengage from the distal end of the drill string includes launching a release tool and manipulating the drilling assembly using the release tool.
The method of claim 4 wherein the release tool is launched on a work string tool.
The method of any preceding claim wherein the step of actuating the drilling assembly to disengage from the distal end of the drill string includes launching a fluid conveyed tool and manipulating the drilling assembly using the fluid-conveyed tool.
The method of any preceding claim wherein the casing is provided as the entirety of the drill string.
The method of any of claims 1 to 5 wherein the casing is a liner and is suspended on a string of drill pipe and the method further comprises releasing the drill pipe from the liner and prior to removing the drilling assembly.
A method for advancing a casing string (16) to a desired depth within a wellbore (10), the wellbore having been drilled using the casing string (16) as at least a portion of an elongated tubular drill string (16) and a drilling assembly (18) connected to the drill string (16) and retrievable from the lower distal end of the drill string without withdrawing the casing string (16) from the wellbore being formed by the drilling assembly, the method comprising: after drilling a wellbore, releasing the drilling assembly (18) from engagement with the drill string (16); advancing the drill string (16) over the drilling assembly (18) to a desired depth; and removing the drilling assembly (18) from the wellbore through the drill string (16) without removing the casing string portion of the drill string from the wellbore.
The method of claim 8 wherein the drill string is advanced substantially to wellbore bottom prior to removing the drilling assembly.
The method of claim 8 or 9 wherein the step of releasing the drilling assembly from engagement with the drill string includes launching a release tool and manipulating the drilling assembly using the release tool.
The method of any of claim 10 wherein the release tool is launched on a work string.
The method of any of claims 8 to 11 wherein the step of releasing the drilling assembly from engagement with the drill string includes launching a fluid-conveyed tool and manipulating the drilling assembly using the fluid-conveyed tool.
The method of any of claims 8 to 12 wherein the casing is provided as the entirety of the drill string.
The method of any of claims 8 to 12 wherein the casing is a liner and is suspended on a string of drill pipe and the method further comprises releasing the drill pipe from the liner prior to removing the drilling assembly.
EP01933493A 2000-06-09 2001-05-14 A method for drilling with casing Active EP1297240B1 (en)
CA 2311158 CA2311158A1 (en) 2000-06-09 2000-06-09 A method for drilling with casing
CA2311158 2000-06-09
PCT/CA2001/000681 WO2001094738A1 (en) 2000-06-09 2001-05-14 A method for drilling with casing
EP1297240A1 EP1297240A1 (en) 2003-04-02
EP1297240B1 true EP1297240B1 (en) 2006-09-13
ID=4166444
EP01933493A Active EP1297240B1 (en) 2000-06-09 2001-05-14 A method for drilling with casing
US (1) US7044241B2 (en)
EP (1) EP1297240B1 (en)
AT (1) AT339588T (en)
AU (1) AU5997201A (en)
CA (3) CA2311158A1 (en)
DE (1) DE60116755T2 (en)
NO (1) NO326286B1 (en)
WO (1) WO2001094738A1 (en)
WO2004063522A1 (en) * 2003-01-15 2004-07-29 Shell Internationale Research Maatschappij B.V. Wellstring assembly
CA2522993C (en) * 2003-04-24 2011-03-15 Shell Canada Limited Well string assembly
GB2430960B (en) * 2004-06-24 2009-01-21 Baker Hughes Inc Drilling systems and methods utilizing independently deployable multiple tubular strings
US7428933B2 (en) * 2005-07-19 2008-09-30 Baker Hughes Incorporated Latchable hanger assembly and method for liner drilling and completion
WO2007009247A1 (en) * 2005-07-19 2007-01-25 Tesco Corporation A method for drilling and cementing a well
AU2006299755B2 (en) * 2005-10-05 2011-12-22 Schlumberger Technology B.V. Method for drilling with a wellbore liner
AU2006306094A1 (en) * 2005-10-27 2007-05-03 Shell Internationale Research Maatschappij B.V. Extended reach drilling apparatus and method
NO324448B1 (en) * 2005-12-07 2007-10-22 Internat Res Inst Of Stavanger Device for borehole arrangement
US7766102B2 (en) 2006-02-14 2010-08-03 Smart Stabilizer Systems Limited Downhole assembly and cutter assembly
CA2586317C (en) 2006-04-27 2012-04-03 Weatherford/Lamb, Inc. Torque sub for use with top drive
CA2639341C (en) * 2007-09-07 2013-12-31 W. Lynn Frazier Downhole sliding sleeve combination tool
CA2873799C (en) 2008-11-17 2018-06-19 Weatherford/Lamb, Inc. Subsea drilling with casing
US7861781B2 (en) * 2008-12-11 2011-01-04 Tesco Corporation Pump down cement retaining device
US8186457B2 (en) * 2009-09-17 2012-05-29 Tesco Corporation Offshore casing drilling method
WO2011059694A1 (en) * 2009-11-13 2011-05-19 Wwt International, Inc. Open hole non-rotating sleeve and assembly
WO2016036808A1 (en) * 2014-09-02 2016-03-10 Tech Flo Consulting, Llc Flow back jet pump
US2950087A (en) * 1955-10-24 1960-08-23 James N Gregory Combined rotary and percussion drilling
JPS6346231B2 (en) * 1983-10-18 1988-09-14 Nippon Jukagaku Kogyo Kk
DE4142343C2 (en) * 1991-12-20 1996-10-24 Terra Ag Tiefbautechnik An apparatus for producing Erdbohrungen
FI95618C (en) * 1992-12-03 1998-09-03 Jorma Jaervelae Downhole
US5950742A (en) * 1997-04-15 1999-09-14 Camco International Inc. Methods and related equipment for rotary drilling
US5921332A (en) * 1997-12-29 1999-07-13 Sandvik Ab Apparatus for facilitating removal of a casing of an overburden drilling equipment from a bore
2000-06-09 CA CA 2311158 patent/CA2311158A1/en not_active Abandoned
2001-05-14 EP EP01933493A patent/EP1297240B1/en active Active
2001-05-14 CA CA2661956A patent/CA2661956C/en active Active
2001-05-14 AT AT01933493T patent/AT339588T/en not_active IP Right Cessation
2001-05-14 CA CA 2411856 patent/CA2411856A1/en not_active Abandoned
2001-05-14 WO PCT/CA2001/000681 patent/WO2001094738A1/en active IP Right Grant
2001-05-14 AU AU5997201A patent/AU5997201A/en active Pending
2001-05-14 US US10/297,629 patent/US7044241B2/en active Active
2001-05-14 DE DE2001616755 patent/DE60116755T2/en active Active
2002-12-06 NO NO20025861A patent/NO326286B1/en unknown
DE60116755T2 (en) 2008-04-17
NO20025861D0 (en) 2002-12-06
CA2661956A1 (en) 2001-12-13
CA2661956C (en) 2014-12-09
EP1297240A1 (en) 2003-04-02
CA2311158A1 (en) 2001-12-09
US20040026126A1 (en) 2004-02-12
DE60116755D1 (en) 2006-04-06
AU5997201A (en) 2001-12-17
NO326286B1 (en) 2008-11-03
US7044241B2 (en) 2006-05-16
AT339588T (en) 2006-10-15
NO20025861L (en) 2003-02-03
WO2001094738A1 (en) 2001-12-13
CA2411856A1 (en) 2001-12-13
US8141634B2 (en) 2012-03-27 Releasing and recovering tool
EP0760895B1 (en) 1998-10-21 Lateral drilling method
US6186233B1 (en) 2001-02-13 Down hole assembly and method for forming a down hole window and at least one keyway in communication with the down hole window for use in multilateral wells
CN1330845C (en) 2007-08-08 Drilling method and tools and the use thereof
EP1181432B1 (en) 2004-05-06 Method of creating a wellbore
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2006-07-19 DB1 Deletion of b1 document
Free format text: REGISTERED BETWEEN 20141113 AND 20141119
Owner name: SERVICES PETROLIERS SCHLUMBERGER, FR
Owner name: SCHLUMBERGER TECHNOLOGY B.V., NL
Free format text: FORMER OWNER: TESCO CORP., CALGARY, ALBERTA, CA
Free format text: FORMER OWNER: SCHLUMBERGER OILFIELD HOLDINGS LTD., ROAD TOWN, TORTOLA, VG
Representative=s name: BARTELS UND PARTNER PATENTANWAELTE, DE