WO2008010173A2 - Drilling apparatus - Google Patents
Drilling apparatus Download PDFInfo
- Publication number
- WO2008010173A2 WO2008010173A2 PCT/IB2007/052804 IB2007052804W WO2008010173A2 WO 2008010173 A2 WO2008010173 A2 WO 2008010173A2 IB 2007052804 W IB2007052804 W IB 2007052804W WO 2008010173 A2 WO2008010173 A2 WO 2008010173A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- drill bit
- drilling apparatus
- carrier
- accessory equipment
- wrench
- Prior art date
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 78
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 48
- 238000006073 displacement reaction Methods 0.000 claims abstract description 19
- 238000005755 formation reaction Methods 0.000 claims description 45
- 230000000694 effects Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/02—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
-
- 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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/16—Connecting or disconnecting pipe couplings or joints
- E21B19/165—Control or monitoring arrangements therefor
Definitions
- THIS INVENTION relates to drilling apparatus.
- the invention relates particularly to accessory equipment for use with a drilling apparatus of the type that is used, for example, in mines, for drilling holes in the ground.
- Drilling apparatus of this type and to which the present invention relates includes a support structure that supports the actual drilling part of the apparatus in its required configuration with respect to the location where a hole is to be drilled, to permit drilling of the hole.
- the drilling part includes a drive motor and a drill bit engagement part that is driven by the motor and that engages a drill bit, particularly a drill bit comprising a drilling segment, that defines the leading end of the drill bit, a plurality of extension segments, that can be linked with the drilling segment for extending the length of the drill bit, and a distance piece that acts between the drill bit engagement part and the remainder of the drill bit, i.e. that engages the drilling segment and extension segments with the drill bit engagement part of the drilling part of the drilling apparatus.
- a drill bit particularly a drill bit comprising a drilling segment, that defines the leading end of the drill bit, a plurality of extension segments, that can be linked with the drilling segment for extending the length of the drill bit, and a distance piece that acts between the drill bit engagement part and the remainder of the drill bit, i.e. that engages the drilling segment and extension segments with the drill bit engagement part of the drilling part of the drilling apparatus.
- a drilling operation using a drilling apparatus of the above type provides for a hole to be drilled to a depth permitted by the length of a drill bit at a particular time, when an extension segment is inserted in line with the drill bit which, in effect, permits the drilling part of the drilling apparatus to be retracted by a distance equal to the length of the extension segment and then for drilling to continue until a further extension segment must be inserted in line with the drill bit.
- the drilling segment, the extension segments and the distance piece of a drill bit as herein envisaged, hereinafter merely referred to as the drill bit segments of a drill bit, are axially connected with one another via complementary threads in a spigot and socket fashion, the threads being configured to provide for effective tightening together of the segments during actual drilling.
- the two adjacently connected segments between which the extension segment must be inserted such loosening permitting separation of the segments.
- This loosening operation often presents difficulties and requires the use of a special wrench, hereinafter referred to as a drill bit wrench.
- the same difficulties occur also when a drill bit is withdrawn from a hole drilled and extension segments must be removed from the drill bit which, in effect, requires a reverse operation to that required for inserting extension segments in line with a drill bit.
- a drill bit wrench including the displacement of jaws for gripping a drill bit segment and the displacement of the lever of a drill bit wrench for loosening the drill bit segment with respect to an adjacent segment, generally is hydraulically carried out, the drill bit wrench being supported on the support structure of the drilling apparatus used in a configuration in which it is displaceable between an inoperative position, which permits a drilling operation to be carried out, and an operative position, in which, through hydraulic operation, the jaws of the drill bit wrench can grip a drill bit segment and the lever is displaced for loosening the drill bit segment with respect to an adjacent segment.
- hydraulically operable piston/cylinder arrangements will act between the support structure of the drilling apparatus on which the drill bit wrench is supported and the jaws and the lever of the drill bit wrench, respectively, to provide for operation of the drill bit wrench.
- a drill bit wrench as envisaged can thus form accessory equipment for use with a particular drilling apparatus, the support structure of such apparatus being provided with further accessory equipment for carrying a drill bit wrench in a suitable configuration and in a location in which it can perform its function of loosening drill bit segments with respect to one another.
- a known problem in this regard is that with a drill bit wrench located in a required location on the support structure of a drilling apparatus, it can only be used in conjunction with a drill bit including drill bit segments that define gripping locations, for being gripped by the jaws of the drill bit wrench, in a predetermined location that coincides with the operative position of the drill bit wrench.
- This thus requires the drilling apparatus to be used in conjunction only with a drill bit having predetermined length drill bit segments and insofar as drill bits having different length drill bit segments are commonly used, this constitutes a problem, i.e. a drill bit having the predetermined required length drill bit segments may not be readily available.
- the support structure thus supports a drill bit wrench in the required location that suits the drill bit segments of the drill bit to be used.
- the support structure of the drilling apparatus used must permit a drill bit wrench to be operatively supported at different locations thereon, displacement from one location to another, however, being both time consuming and difficult.
- accessory equipment for a drilling apparatus which includes a mounting structure for mounting a drill bit wrench on the support structure of a drilling apparatus, the mounting structure including, in its in-use configuration
- a mounting bracket securable to the support structure of a drilling apparatus
- an elongate carrier formation secured on the mounting bracket and defining a longitudinal axis along the length thereof which, with the mounting bracket secured to the support structure of a drilling apparatus, is parallel to the longitudinal axis of the drill bit to be used with the drilling apparatus;
- carrier means located by the carrier formation in a configuration in which it is displaceable with respect to the carrier formation along the longitudinal axis defined by the carrier formation, the carrier means having formations for supporting a drill bit wrench in a configuration in which, with the mounting bracket secured to the support structure of a drilling apparatus, it can serve to loosen drill bit segments of the drill bit of the drilling apparatus;
- displacement means for displacing the carrier means with respect to the carrier formation along the longitudinal axis defined by the carrier formation.
- the configuration of the mounting bracket of the mounting structure of the accessory equipment may be adapted to cooperate with the support structure of a particular predetermined drilling apparatus, to be securable thereto.
- the exact configuration of the mounting bracket is greatly variable, being determined to provide effectively for the support of a drill bit wrench in a suitable location with respect to a drill bit of the drilling apparatus with which the accessory equipment is used.
- the carrier formation of the mounting structure of the accessory equipment may be one of a round and a square tubular formation, providing for the carrier means to be displaceable within this tubular formation, with the support formations for supporting a drill bit wrench projecting from the tubular formation.
- the elongate carrier formation also can be a shaft on which the carrier means is displaceably located.
- the support formations of the carrier means for supporting a drill bit wrench may be pivotally displaceable with respect to the carrier formation, permitting displacement of a drill bit wrench, supported by the support formations and with the mounting bracket secured to the support structure of a drilling apparatus, between an inoperative position and an operative position in which it can be used for loosening adjacent drill bit segments of a drill bit with respect to one another.
- the displacement means of the support structure of the accessory equipment may be hydraulically operable means and, particularly, is a piston/cylinder arrangement operatively connected between the carrier means and the elongate carrier formation.
- the accessory equipment of the invention also may include a drill bit wrench supported by the support formations of the carrier means.
- the accessory equipment may include hydraulically operable piston/cylinder arrangements that are operable for displacing the jaws of the drill bit wrench with respect to one another for gripping a drill bit segment of a drill bit and for displacing the lever of the drill bit wrench for loosening two adjacent drill bit segments of the drill bit with respect to one another.
- the overall configuration of the accessory equipment of the invention clearly is greatly variable, being determined particularly by the configuration of the drilling apparatus with which it is to be used, as well as the configuration of a drill bit wrench to be used therewith or forming a part thereof.
- the accessory equipment of the invention is provided for use with a drilling apparatus and, in use, can form an effective part thereof, the invention extends also to a drilling apparatus which is adapted to have accessory equipment, in accordance with the invention, mounted thereon and to a drilling apparatus which includes as part thereof accessory equipment, in accordance with the invention.
- Figure 1 shows a side view of the accessory equipment, in a first operative configuration thereof
- Figure 2 shows a side view of the equipment of Figure 1 , in a second operative configuration thereof;
- Figure 3 illustrates schematically the location of the equipment of Figure 1 on a drilling apparatus.
- accessory equipment for a drilling apparatus is designated generally by the reference numeral 10.
- the accessory equipment 10 particularly is adapted for use with a drilling apparatus 50, which is of the type herein envisaged.
- the drilling apparatus 50 includes a mobile support structure 52 that supports the actual drilling part 54 of the apparatus in its required configuration with respect to the location where a hole is to be drilled, to permit drilling of the hole, the drilling part 54 being schematically shown in dotted lines in Figure 3, for clarity, externally of the support structure 52, although in practice it is located within the perimeter of the support structure 52.
- the drilling part of the apparatus is associated with a drill bit 56 (see Figure 3), both Figures 1 and 2 illustrating two drill bit segments of such a drill bit, which are designated respectively by the numerals 12 and 14.
- the accessory equipment 10, shown in Figure 3 in its inoperative position, is located above the deck 58 of the drilling apparatus 50 and is provided particularly to facilitate loosening of the drill bit segments of a drill bit with respect to one another, particularly with the aid of a drill bit wrench, which is designated generally by the numeral 16.
- the drill bit wrench is of a known type and insofar as its configuration does not form a part of the present invention, it is not described in further detail herein, save that it includes a pair of jaws 18 and a lever 20, the lever extending integrally from one of the jaws of the pair of jaws 18.
- the drill bit wrench 16 is mounted on the support structure 52 of the drilling apparatus, particularly via a mounting structure that forms a part of the accessory equipment.
- the mounting structure includes a mounting bracket 22 that is directly secured to the support structure 52 of the drilling apparatus (see Figure 3) and that has an elongate carrier formation 24 mounted thereon.
- the elongate carrier formation 24 defines an axis parallel to the longitudinal axis of the drill bit to be used with the drilling apparatus and of which two drill bit segments, 12 and 14, are shown.
- the carrier formation particularly is a square tubular formation that has a carrier means 26 slidably located therein, the carrier means including formations 28 whereby the drill bit wrench is supported in the configuration as illustrated, in which it can serve to loosen drill bit segments, of a drill bit of the associated drilling apparatus, with respect to one another, as is described in more detail hereafter.
- a displacement means in the form of a piston/cylinder arrangement 30, is mounted on one end of the carrier formation 24, a piston rod 32 of the piston part of the arrangement 30 being operatively connected with the carrier means 26 so that by operation of the piston/ cylinder arrangement 30, the carrier means is slidably displaceable within the carrier formation 24, particularly between a "lowest position” as shown in Figure 1 and a “highest position” as shown in Figure 2.
- This displacement of the carrier means with respect to the carrier formation is clearly apparent from Figures 1 and 2 of the drawings. It will be understood also in this regard that by the displacement of the carrier means, the drill bit wrench 16 will be simultaneously displaced.
- the formations 28 of the carrier means 26 whereby the drill bit wrench 16 is supported particularly provides for the pivotal support of the drill bit wrench, a pivot pin 34 serving as a pivot between the formations 28 and the remainder of the carrier means 26 to provide for displacement of the drill bit wrench from its operative position as shown in
- Figures 1 and 2 in which it is positioned to engage a drill bit segment of a drill bit, to permit loosening of adjacent drill bit segments with respect to one another, and an inoperative position, in which the drill bit wrench is displaced away from the drill bit, so as not to interfere with a drilling operation.
- a suitable piston/cylinder arrangement 36 serves to control this pivotal displacement, whereas further piston/cylinder arrangements act between the carrier means 26 and the drill bit wrench 16, to provide for effective operation of the drill bit wrench, essentially in a conventional manner.
- the invention extends also to such a drilling apparatus which includes accessory equipment as described above as part thereof.
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2007274618A AU2007274618B2 (en) | 2006-07-14 | 2007-07-13 | Drilling apparatus |
US12/373,850 US20090255663A1 (en) | 2006-07-14 | 2007-07-13 | Drilling apparatus |
ZA2009/00710A ZA200900710B (en) | 2006-07-14 | 2009-01-29 | Drilling apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ZA200605832 | 2006-07-14 | ||
ZA2006/05832 | 2006-07-14 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2008010173A2 true WO2008010173A2 (en) | 2008-01-24 |
WO2008010173A3 WO2008010173A3 (en) | 2008-03-20 |
Family
ID=38859008
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2007/052804 WO2008010173A2 (en) | 2006-07-14 | 2007-07-13 | Drilling apparatus |
Country Status (4)
Country | Link |
---|---|
US (1) | US20090255663A1 (en) |
AU (1) | AU2007274618B2 (en) |
WO (1) | WO2008010173A2 (en) |
ZA (1) | ZA200900710B (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3780815A (en) * | 1972-01-07 | 1973-12-25 | Byron Jackson Inc | Power tong positioning apparatus |
US3874196A (en) * | 1973-07-16 | 1975-04-01 | Gardner Denver Co | Rotary drive and joint breakout mechanism |
US20040049905A1 (en) * | 2002-09-12 | 2004-03-18 | Manfred Jansch | Automated pipe joining system |
US20050061112A1 (en) * | 2003-09-19 | 2005-03-24 | Weatherford Lamb, Inc. | Adapter frame for a power frame |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3803953A (en) * | 1972-03-01 | 1974-04-16 | Byron Jackson Inc | Orienting apparatus for threaded well pipe |
US4423774A (en) * | 1981-06-03 | 1984-01-03 | Joe Mefford | Method and apparatus for positioning a safety valve sub for connection in a threaded tubular member |
US5931231A (en) * | 1996-06-27 | 1999-08-03 | Bucyrus International, Inc. | Blast hole drill pipe gripping mechanism |
US6206096B1 (en) * | 1999-05-11 | 2001-03-27 | Jaroslav Belik | Apparatus and method for installing a pipe segment in a well pipe |
US6814149B2 (en) * | 1999-11-26 | 2004-11-09 | Weatherford/Lamb, Inc. | Apparatus and method for positioning a tubular relative to a tong |
IT1320328B1 (en) * | 2000-05-23 | 2003-11-26 | Soilmec Spa | STORAGE EQUIPMENT AND MANEUVERING OF AUCTIONS FOR DITRELING SYSTEMS |
US6793021B1 (en) * | 2003-02-03 | 2004-09-21 | Robert P. Fanguy | Screen table tong assembly and method |
US7188686B2 (en) * | 2004-06-07 | 2007-03-13 | Varco I/P, Inc. | Top drive systems |
-
2007
- 2007-07-13 WO PCT/IB2007/052804 patent/WO2008010173A2/en active Application Filing
- 2007-07-13 US US12/373,850 patent/US20090255663A1/en not_active Abandoned
- 2007-07-13 AU AU2007274618A patent/AU2007274618B2/en active Active
-
2009
- 2009-01-29 ZA ZA2009/00710A patent/ZA200900710B/en unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3780815A (en) * | 1972-01-07 | 1973-12-25 | Byron Jackson Inc | Power tong positioning apparatus |
US3874196A (en) * | 1973-07-16 | 1975-04-01 | Gardner Denver Co | Rotary drive and joint breakout mechanism |
US20040049905A1 (en) * | 2002-09-12 | 2004-03-18 | Manfred Jansch | Automated pipe joining system |
US20050061112A1 (en) * | 2003-09-19 | 2005-03-24 | Weatherford Lamb, Inc. | Adapter frame for a power frame |
Also Published As
Publication number | Publication date |
---|---|
WO2008010173A3 (en) | 2008-03-20 |
AU2007274618A1 (en) | 2008-01-24 |
ZA200900710B (en) | 2010-02-24 |
AU2007274618B2 (en) | 2013-03-07 |
US20090255663A1 (en) | 2009-10-15 |
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