WO2014185789A1 - Lifting apparatus for handling of an equipment at a drill floor's centre and use of the lifting apparatus - Google Patents

Lifting apparatus for handling of an equipment at a drill floor's centre and use of the lifting apparatus Download PDF

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Publication number
WO2014185789A1
WO2014185789A1 PCT/NO2014/050074 NO2014050074W WO2014185789A1 WO 2014185789 A1 WO2014185789 A1 WO 2014185789A1 NO 2014050074 W NO2014050074 W NO 2014050074W WO 2014185789 A1 WO2014185789 A1 WO 2014185789A1
Authority
WO
WIPO (PCT)
Prior art keywords
lifting apparatus
lifting
top drive
attached
arrangement
Prior art date
Application number
PCT/NO2014/050074
Other languages
French (fr)
Inventor
Kjell Inge Torgersen
Gjøran MIDTBØ
Original Assignee
Dwellop As
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 Dwellop As filed Critical Dwellop As
Publication of WO2014185789A1 publication Critical patent/WO2014185789A1/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/02—Rod or cable suspensions
    • E21B19/06—Elevators, i.e. rod- or tube-gripping devices
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/008—Winding units, specially adapted for drilling operations

Definitions

  • the invention relates to a lifting apparatus for use on a drill floor. More precisely, the invention relates to a lifting apparatus for lifting relatively light equipment at the centre of a drill floor. In particular, the invention relates to a lifting apparatus that can be quickly mobilized when needed and that can be quickly demobilized.
  • a drill floor is above the centre of a well. Right above the well centre, the drill floor is provided with a main passage. The mam passage may form part of a rotary table.
  • a derrick or a drilling mast projects above the drill floor.
  • the function of the derrick is to support a lifting arrangement for a drill string or casing.
  • the lifting arrangement is arranged to lower the drill string or the casing into the well or lift these up from the well.
  • the derrick may be provided with a top drive, often termed a top drive in the art.
  • the top drive is secured to the lifting arrangement of the derrick or drilling mast and can be moved up and down above the well centre.
  • the lifting arrangement of the derrick is arranged to handle heavy lifts, such as a drill string or casing.
  • heavy lifts such as a drill string or casing.
  • lighter equipment there is a need to lift lighter equipment in the vicinity of the well centre, while, at the same time, the drill string or casing is hanging from the top drive or from the elevator of the top drive.
  • a downhole pump mounted on a production string is an example of such lighter equipment.
  • the patent document US 7,096,963 discloses a tension frame which may be attached to the lifting arrangement of the derrick and which is connected to a riser system.
  • the tension frame is arranged to securely hold well-intervention equipment such as a so- called injector for a coiled-tubing operation or a so-called lubricator.
  • This is relatively heavy equipment and, on a transverse bar in its upper portion, the tension frame is provided with a separate, centred winch for lifting or lowering the heavy equipment relative to the frame.
  • the tension frame is provided with a crane, which is rotatable around the vertical axis, on one of its vertical bars.
  • the crane is provided with a winch and drawworks. The crane can lift up equipment to the side of the frame, and the crane can be rotated so that the equipment is carried in above the well centre.
  • the invention has for its object to remedy or reduce at least one of the drawbacks of the prior art or at least provide a useful alternative to the prior art.
  • the invention in a first aspect, relates to a lifting apparatus including a winch, the lifting apparatus being provided with a mounting element arranged to be attached to a portion on the bottom side of a movable lifting arrangement, the lifting arrangement being moved vertically above a well centre.
  • the lifting arrangement may be positioned in a derrick or in a drilling mast.
  • the lifting apparatus may be arranged to be releasably attached to the portion of the lifting arrangement.
  • the movable lifting arrangement may consist of a top drive.
  • the lifting apparatus may be arranged to be releasably attached to the top drive.
  • the lifting apparatus may be arranged to be releasably attached to the drive shaft of the top drive.
  • the lifting apparatus may be provided with an arm which is provided with a mounting element at its free end portion.
  • the lifting apparatus may be provided with an articulated arm.
  • the mounting element of the arm may be arranged to be attached to a top drive.
  • the mounting element may be arranged to be releasably attached to the drive shaft of the top drive.
  • the invention relates to a method of lifting equipment near and above a well centre on a drill floor, wherein the method includes:
  • the method may further include attaching the lifting apparatus to a portion on the bottom side of a top drive.
  • Figure 1 shows a top drive provided with a winch in a first embodiment
  • FIG. 1 shows the same as figure 1 in an alternative embodiment
  • Figure 3 shows the same as figure 1 in a further alternative embodiment
  • Figure 4 shows the same as figure 1 in a further alternative embodiment.
  • the reference numeral 1 indicates a top drive (top drive) of a type known per se.
  • the top drive 1 may be of various designs as it is known within the art. The top drive 1 is therefore not described particularly, with the exception of the parts that are necessary to describe the manner of operation of the invention.
  • the top drive 1 is attached to a lifting arrangement (not shown) which is moved vertically within a derrick (not shown) or moved vertically along a drilling mast (not shown).
  • a lifting apparatus 2 includes a winch 3 and a winch holder 4.
  • the winch holder 4 includes a protective frame 41 enclosing the winch 3.
  • the winch 3 is of a type known per se, and the winch 3 may be driven by an electric motor or a hydraulic motor (not shown) as it is known in the art.
  • the winch 3 may be controlled by means of a control cable (not shown) or it may be controlled in a wireless manner, for example by means of radio signals.
  • the winch 3 is provided with a wire (not shown) and a drum 31, among other things. At its end portion, the wire is provided with a fastening device, such as a lifting hook (not shown).
  • the winch 3 is not described in further detail as a person skilled in the art will know how the winch 3 may be attached to the protective frame 41 and how the winch 3 is to be operated.
  • the winch 3 may be provided with a chain or a rope.
  • the winch 3 may also be provided with a tackle (not shown).
  • the lifting apparatus 2 includes a mounting element 5.
  • the mounting element 5 is positioned on the upper portion 43 of the protective frame 41, projecting up therefrom.
  • the mounting element 5 is provided with an internal threaded portion 51.
  • the internal threaded portion 51 complementari- ly fits an external threaded portion 11 on the downward-projecting drive shaft 13 of the top drive 1.
  • the mounting element 5 may be rigidly fixed to the protective frame 41.
  • the drive shaft 13 is screwed with its external threaded portion 11 into the internal threaded portion 51.
  • the lifting apparatus 2 may include an arm 6.
  • the arm 6 may be a rigid arm 6' as shown in figure 3 or an articulated arm 6 as shown in figures 2 and 4.
  • the arm 6 is attached to the winch holder 4 or directly to the winch 3 (not shown) and projects sideways out from the winch holder 4.
  • the arm 6 comprises a first arm 61 and a second arm 63 which are rotatably connected at a joint 65.
  • the second arm 63 is provided with the mounting element 5 at its free end portion.
  • the mounting element 5 is provided with an internal threaded portion 51.
  • the drive shaft 13 is screwed with its external threaded portion 11 into the internal threaded portion 51.
  • the lifting apparatus 2 is provided with a mounting element 5 in the form of a mounting bracket 7.
  • the mounting bracket 7 is rotatably attached to a sleeve 67 on the free end portion of the arm 6'.
  • the mounting bracket 7 is arranged to be releasably attached to the bottom side of the hoisting machinery 15 of the top drive 1.
  • the bottom side of the hoisting machinery 15 is arranged to complementarily hold the mounting bracket 7 with sufficient strength for the arm 6 to substantially maintain a horizontal orientation when there is load on the lifting apparatus 2.
  • the mounting bracket 7 may be releasably attached in a known manner, for example with bolts (not shown). The person skilled in the art will understand that the mounting bracket 7 may be attached in several places on the bottom side of the top drive 1 as long as the area of attachment lies to the side of the drive shaft 13.
  • the lifting apparatus 2 may be rotated aside relative to the drive shaft 13. Thereby the lifting apparatus 2 will not come in the way when the top drive 1 is used for its ordinary use. In this embodiment, the lifting apparatus 2 may therefore be more permanently attached to the top drive 1.
  • the arm 6 may be provided with one or more actuators of a known type (not shown) or other mechanisms of known types (not shown) which make the arm 6 rotate around the mounting bracket 7 and around the joint 65. Such actuators or mechanisms may get their energy supply from the energy supply of the top drive 1.
  • the actuator or mechanism may be remote-controlled, for example by means of radio signals.
  • the lifting apparatus 2 may be releasabiy attached to other parts of a movable lifting arrangement in a derrick, these parts being above a well centre 90.
  • the top drive 1 is lowered down to a drill floor 9 and the lifting apparatus 2 is attached to the top drive 1.
  • the top drive 1 is lifted to the desired height and the lifting apparatus 2 is activated to lift or lower light equipment up and down relative to the drill floor 9.
  • the lifting apparatus 2 may be used to bring light equipment in to the well centre 90 and away from the well centre 90.

Abstract

A lifting apparatus (2) including a winch (3), the lifting apparatus (2) being provided with a mounting element (5) which is arranged to be attached to a portion on the bottom side of a movable lifting arrangement, the lifting arrangement being moved vertically above a well centre (90). A method of using the lifting apparatus (2) is described as well.

Description

LIFTING APPARATUS FOR HANDLING OF AN EQUIPMENT AT A DRILL FLOOR'S CENTRE AND USE OF THE LIFTING APPARATUS
The invention relates to a lifting apparatus for use on a drill floor. More precisely, the invention relates to a lifting apparatus for lifting relatively light equipment at the centre of a drill floor. In particular, the invention relates to a lifting apparatus that can be quickly mobilized when needed and that can be quickly demobilized.
A drill floor is above the centre of a well. Right above the well centre, the drill floor is provided with a main passage. The mam passage may form part of a rotary table. A derrick or a drilling mast projects above the drill floor. The function of the derrick is to support a lifting arrangement for a drill string or casing. The lifting arrangement is arranged to lower the drill string or the casing into the well or lift these up from the well. The derrick may be provided with a top drive, often termed a top drive in the art. The top drive is secured to the lifting arrangement of the derrick or drilling mast and can be moved up and down above the well centre.
The lifting arrangement of the derrick is arranged to handle heavy lifts, such as a drill string or casing. In some operations, there is a need to lift lighter equipment in the vicinity of the well centre, while, at the same time, the drill string or casing is hanging from the top drive or from the elevator of the top drive. A downhole pump mounted on a production string is an example of such lighter equipment.
The patent document US 7,096,963 discloses a tension frame which may be attached to the lifting arrangement of the derrick and which is connected to a riser system. The tension frame is arranged to securely hold well-intervention equipment such as a so- called injector for a coiled-tubing operation or a so-called lubricator. This is relatively heavy equipment and, on a transverse bar in its upper portion, the tension frame is provided with a separate, centred winch for lifting or lowering the heavy equipment relative to the frame. When such equipment is used, there is a need to be able to lift relatively light equipment in to the well centre. For this purpose, the tension frame is provided with a crane, which is rotatable around the vertical axis, on one of its vertical bars. The crane is provided with a winch and drawworks. The crane can lift up equipment to the side of the frame, and the crane can be rotated so that the equipment is carried in above the well centre.
The invention has for its object to remedy or reduce at least one of the drawbacks of the prior art or at least provide a useful alternative to the prior art.
The object is achieved through features which are specified in the description below and in the claims that follow.
In a first aspect, the invention relates to a lifting apparatus including a winch, the lifting apparatus being provided with a mounting element arranged to be attached to a portion on the bottom side of a movable lifting arrangement, the lifting arrangement being moved vertically above a well centre. The lifting arrangement may be positioned in a derrick or in a drilling mast.
The lifting apparatus may be arranged to be releasably attached to the portion of the lifting arrangement. The movable lifting arrangement may consist of a top drive. The lifting apparatus may be arranged to be releasably attached to the top drive. The lifting apparatus may be arranged to be releasably attached to the drive shaft of the top drive.
The lifting apparatus may be provided with an arm which is provided with a mounting element at its free end portion. The lifting apparatus may be provided with an articulated arm. The mounting element of the arm may be arranged to be attached to a top drive. The mounting element may be arranged to be releasably attached to the drive shaft of the top drive.
In a second aspect, the invention relates to a method of lifting equipment near and above a well centre on a drill floor, wherein the method includes:
- providing a lifting apparatus as described above;
- positioning the lifting apparatus on the drill floor near the well centre;
- lowering a vertically movable part of a lifting arrangement down to the lifting apparatus;
- attaching the lifting apparatus to a portion on the bottom side of the movable part of the lifting arrangement;
- lifting the movable part of the lifting arrangement to a desired working height above the drill floor; and
- activating a winch in the lifting apparatus to be able to lift or lower an object up or down relative to the drill floor. The method may further include attaching the lifting apparatus to a portion on the bottom side of a top drive.
In what follows, examples of preferred embodiments are described, which are visualized in the accompanying drawings, in which :
Figure 1 shows a top drive provided with a winch in a first embodiment;
Figure 2 shows the same as figure 1 in an alternative embodiment;
Figure 3 shows the same as figure 1 in a further alternative embodiment; and
Figure 4 shows the same as figure 1 in a further alternative embodiment.
In the drawings, the reference numeral 1 indicates a top drive (top drive) of a type known per se. The top drive 1 may be of various designs as it is known within the art. The top drive 1 is therefore not described particularly, with the exception of the parts that are necessary to describe the manner of operation of the invention. The top drive 1 is attached to a lifting arrangement (not shown) which is moved vertically within a derrick (not shown) or moved vertically along a drilling mast (not shown).
A lifting apparatus 2 according to the invention includes a winch 3 and a winch holder 4. The winch holder 4 includes a protective frame 41 enclosing the winch 3.
The winch 3 is of a type known per se, and the winch 3 may be driven by an electric motor or a hydraulic motor (not shown) as it is known in the art. The winch 3 may be controlled by means of a control cable (not shown) or it may be controlled in a wireless manner, for example by means of radio signals. The winch 3 is provided with a wire (not shown) and a drum 31, among other things. At its end portion, the wire is provided with a fastening device, such as a lifting hook (not shown). The winch 3 is not described in further detail as a person skilled in the art will know how the winch 3 may be attached to the protective frame 41 and how the winch 3 is to be operated. As an alternative to a wire, the winch 3 may be provided with a chain or a rope. The winch 3 may also be provided with a tackle (not shown).
The lifting apparatus 2 includes a mounting element 5. In one embodiment, which is shown in figure 1, the mounting element 5 is positioned on the upper portion 43 of the protective frame 41, projecting up therefrom. The mounting element 5 is provided with an internal threaded portion 51. The internal threaded portion 51 complementari- ly fits an external threaded portion 11 on the downward-projecting drive shaft 13 of the top drive 1. The mounting element 5 may be rigidly fixed to the protective frame 41. In this embodiment, the drive shaft 13 is screwed with its external threaded portion 11 into the internal threaded portion 51.
In alternative embodiments, the lifting apparatus 2 may include an arm 6. The arm 6 may be a rigid arm 6' as shown in figure 3 or an articulated arm 6 as shown in figures 2 and 4. The arm 6 is attached to the winch holder 4 or directly to the winch 3 (not shown) and projects sideways out from the winch holder 4. As shown in figures 2 and 4, the arm 6 comprises a first arm 61 and a second arm 63 which are rotatably connected at a joint 65. The second arm 63 is provided with the mounting element 5 at its free end portion. The mounting element 5 is provided with an internal threaded portion 51. The drive shaft 13 is screwed with its external threaded portion 11 into the internal threaded portion 51.
In an alternative embodiment as shown in figure 3, the lifting apparatus 2 is provided with a mounting element 5 in the form of a mounting bracket 7. The mounting bracket 7 is rotatably attached to a sleeve 67 on the free end portion of the arm 6'. The mounting bracket 7 is arranged to be releasably attached to the bottom side of the hoisting machinery 15 of the top drive 1. The bottom side of the hoisting machinery 15 is arranged to complementarily hold the mounting bracket 7 with sufficient strength for the arm 6 to substantially maintain a horizontal orientation when there is load on the lifting apparatus 2. The mounting bracket 7 may be releasably attached in a known manner, for example with bolts (not shown). The person skilled in the art will understand that the mounting bracket 7 may be attached in several places on the bottom side of the top drive 1 as long as the area of attachment lies to the side of the drive shaft 13.
In the embodiments shown in figures 3 and 4, the lifting apparatus 2 may be rotated aside relative to the drive shaft 13. Thereby the lifting apparatus 2 will not come in the way when the top drive 1 is used for its ordinary use. In this embodiment, the lifting apparatus 2 may therefore be more permanently attached to the top drive 1.
The person skilled in the art will understand that the arm 6 may be provided with one or more actuators of a known type (not shown) or other mechanisms of known types (not shown) which make the arm 6 rotate around the mounting bracket 7 and around the joint 65. Such actuators or mechanisms may get their energy supply from the energy supply of the top drive 1. The actuator or mechanism may be remote-controlled, for example by means of radio signals. The person skilled in the art will also understand that the lifting apparatus 2 may be releasabiy attached to other parts of a movable lifting arrangement in a derrick, these parts being above a well centre 90.
The top drive 1 is lowered down to a drill floor 9 and the lifting apparatus 2 is attached to the top drive 1. The top drive 1 is lifted to the desired height and the lifting apparatus 2 is activated to lift or lower light equipment up and down relative to the drill floor 9. In the embodiments in which the lifting apparatus 2 is provided with the arm 6, the lifting apparatus 2 may be used to bring light equipment in to the well centre 90 and away from the well centre 90.

Claims

C l a i m s
A lifting apparatus (2) including a winch (3), c h a r a c t e r i z e d I n that the lifting apparatus (2) is provided with a mounting element (5) arranged to be attached to a portion on the bottom side of a movable lifting arrangement, the lifting arrangement being moved vertically above a well centre (90).
The lifting apparatus (2) according to claim 1, wherein the lifting apparatus (2) is arranged to be reieasabiy attached to the lifting arrangement.
The lifting apparatus (2) according to claim 1, wherein the movable lifting arrangement consists of a top drive (1).
The lifting apparatus (2) according to claim 3, wherein the lifting apparatus (2) is arranged to be reieasabiy attached to the top drive (1).
The lifting apparatus (2) according to claim 4, wherein the lifting apparatus (2) is arranged to be reieasabiy attached to the drive shaft (13) of the top drive (1).
The lifting apparatus (2) according to claim 1, wherein the lifting apparatus (2) is provided with an arm (6) which is provided with the mounting element (5) at is free end portion.
The lifting apparatus (2) according to claim 6, wherein the lifting apparatus (2) is provided with an articulated arm (6).
The lifting apparatus (2) according to claim 6 or 7, wherein the mounting element (5) is arranged to be attached to a top drive (1).
The lifting apparatus (2) according to claim 8, wherein the mounting element (5) is arranged to be reieasabiy attached to the drive shaft (13) of the top drive (1).
A method of lifting equipment near and above a well centre (90) on a drill floor (9), c h a r a c t e r i z e d i n that the method includes: '
- providing a lifting apparatus (2) according to claim 1 ;
- positioning the lifting apparatus (2) on the drill floor (9) near the well centre (90);
- lowering a vertically movable part of a lifting arrangement down to the lift- ing apparatus (2);
- attaching the lifting apparatus (2) to a portion on the bottom side of the movable part of the lifting arrangement;
- lifting the movable part of the lifting arrangement to a desired working height above the drill floor (9); and
- activating a winch (3) in the lifting apparatus (2) to be able to lift or lower an object up or down relative to the drill floor (9).
The method according to claim 10, wherein the method further includes attaching the lifting apparatus (2) to a portion on the bottom side of a top drive (1).
PCT/NO2014/050074 2013-05-15 2014-05-15 Lifting apparatus for handling of an equipment at a drill floor's centre and use of the lifting apparatus WO2014185789A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20130689A NO20130689A1 (en) 2013-05-15 2013-05-15 Lifting device for handling equipment at a drill tire center and using the lifting device
NO20130689 2013-05-15

Publications (1)

Publication Number Publication Date
WO2014185789A1 true WO2014185789A1 (en) 2014-11-20

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ID=51898658

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PCT/NO2014/050074 WO2014185789A1 (en) 2013-05-15 2014-05-15 Lifting apparatus for handling of an equipment at a drill floor's centre and use of the lifting apparatus

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WO (1) WO2014185789A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7800669A (en) * 1978-01-19 1979-07-23 Foxdrill B V Rig for feeding conductor pipe in offshore oil and gas wells - includes rotating column tower, displaceable rotary table and separate winches, hoists and elevators
WO2004079147A2 (en) * 2003-03-05 2004-09-16 Weatherford/Lamb, Inc. Method and apparatus for drilling with casing
WO2010059063A1 (en) * 2008-11-21 2010-05-27 Improved Solutions As Device, method and use for transfer of equipment for a wireline operation in a well
US20100212915A1 (en) * 2009-02-25 2010-08-26 Karsten Heidecke Pipe handling system
WO2011148184A2 (en) * 2010-05-26 2011-12-01 Quality Intervention As Well intervention method and apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7800669A (en) * 1978-01-19 1979-07-23 Foxdrill B V Rig for feeding conductor pipe in offshore oil and gas wells - includes rotating column tower, displaceable rotary table and separate winches, hoists and elevators
WO2004079147A2 (en) * 2003-03-05 2004-09-16 Weatherford/Lamb, Inc. Method and apparatus for drilling with casing
WO2010059063A1 (en) * 2008-11-21 2010-05-27 Improved Solutions As Device, method and use for transfer of equipment for a wireline operation in a well
US20100212915A1 (en) * 2009-02-25 2010-08-26 Karsten Heidecke Pipe handling system
WO2011148184A2 (en) * 2010-05-26 2011-12-01 Quality Intervention As Well intervention method and apparatus

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