US20040011600A1 - Tubular slip device and method - Google Patents

Tubular slip device and method Download PDF

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Publication number
US20040011600A1
US20040011600A1 US10/198,542 US19854202A US2004011600A1 US 20040011600 A1 US20040011600 A1 US 20040011600A1 US 19854202 A US19854202 A US 19854202A US 2004011600 A1 US2004011600 A1 US 2004011600A1
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US
United States
Prior art keywords
slip
ledge
insert
shoulder
load
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.)
Abandoned
Application number
US10/198,542
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English (en)
Inventor
Joe Ramey
Wilson Leblanc
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.)
Access Oil Tools Inc
Original Assignee
Access Oil Tools Inc
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 Access Oil Tools Inc filed Critical Access Oil Tools Inc
Priority to US10/198,542 priority Critical patent/US20040011600A1/en
Assigned to ACCESS OIL TOOLS, INC. reassignment ACCESS OIL TOOLS, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LEBLANC JR., WILSON ANDRE, RAMEY, JOE STEWART
Priority to PCT/US2003/021495 priority patent/WO2004007896A2/en
Priority to EP03764415A priority patent/EP1551744B1/de
Priority to CA2492209A priority patent/CA2492209C/en
Priority to AU2003248909A priority patent/AU2003248909A1/en
Priority to AT03764415T priority patent/ATE372948T1/de
Priority to DE60316330T priority patent/DE60316330T2/de
Publication of US20040011600A1 publication Critical patent/US20040011600A1/en
Priority to US10/810,228 priority patent/US7134531B2/en
Priority to GB0616739A priority patent/GB2429024B/en
Priority to PCT/US2005/008827 priority patent/WO2005100738A2/en
Priority to US11/545,704 priority patent/US7398833B2/en
Abandoned legal-status Critical Current

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    • 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
    • E21B19/10—Slips; Spiders ; Catching devices

Definitions

  • This invention relates to a tubular handling device. More particularly, but not be way of limitation, this invention relates to a tubular slip device and method.
  • the device generally used is referred to as a rotary slip.
  • the prior art devices include an apparatus capable of encircling the tubular member.
  • the apparatus has on its inner face slip means for gripping onto the tubular member.
  • the apparatus is placed into a slip bowl on the drill rig floor, as is very well understood by those of ordinary skill in the art.
  • Conventional rotary slip are commercially available from Access Oil Tools, Inc. of New Iberia, La. under the name “DU” and “SDU” Style Rotary Slips.
  • An object of the invention is to ensure that the total weight of the string is distributed more evenly over the full vertical height of all the slip segments.
  • Another object is construction of a rotary slip that can withstand significant loading forces without premature failure or fatigue.
  • a rotary slip apparatus for handling tubular members on a drill rig floor comprises a first slip having a first arcuate inner face and an outer face, wherein the inner face has a first longitudinally disposed slot that contains a first ledge therein.
  • the apparatus also contains a second slip that is connected to the first slip, with the second slip having a second arcuate inner face and an outer face.
  • the apparatus also contains a third slip having a third arcuate inner face and outer face.
  • the apparatus further comprises means for attaching the first slip with the second slip, and the second slip with the third slip so that the first, second, and third slip inner faces engage a first tubular member on the drill rig floor.
  • a first insert is included, with the first insert having a first shoulder that is configured to fit within the first ledge, and wherein the first shoulder transfers a load from the first insert to the first ledge.
  • the second slip's inner face has a second longitudinally disposed slot and wherein the second longitudinally disposed slot has a second ledge therein.
  • the apparatus further comprises a second insert having a second shoulder that is configured to fit within the second ledge and wherein the second shoulder transfers the load from the second insert to the second ledge.
  • the third slip's inner face has a third longitudinally disposed slot and wherein the third longitudinally disposed slot has a third ledge therein.
  • the apparatus further comprises a third insert that contains a third shoulder that is configured to fit within the third ledge and wherein the third shoulder transfers a load from the third insert to the third ledge.
  • the tubular handling device may further comprise a fourth ledge disposed within the first longitudinally disposed slot. Also included will be a fourth insert having a fourth shoulder that is configured to fit within the fourth ledge and wherein the fourth shoulder transfers the load from the fourth insert to the fourth ledge.
  • the tubular handling device may also contain a fifth ledge disposed within the second longitudinally disposed slot, along with a fifth insert.
  • the fifth insert will have a fifth shoulder that is configured to fit within the fifth ledge and wherein the fifth shoulder transfers a load from the fifth insert to the fifth ledge.
  • a sixth ledge may also be included, with the sixth ledge being disposed within the third, longitudinally disposed slot.
  • the sixth insert has a sixth shoulder that is configured to fit within the sixth ledge and wherein the sixth shoulder transfers a load from the sixth insert to the sixth ledge.
  • the inserts are constructed of a 8620 steel, 1018 steel, or a low carbon alloy steel material.
  • the first, second, third, fourth, fifth, and sixth ledge has a bottom surface having an angle of plus 20 degrees to a minus 20 degrees relative to a horizontal plane and wherein the shoulder on the inserts has a complimentary angle of plus 20 degrees to a minus 20 degrees.
  • a method of engaging a tubular member within a rotary table on a drill rig floor includes providing a slip device, with the slip device comprising: a first slip with an inner face that has a first longitudinally disposed slot that has a first and second ledge; a second slip being connected to the first slip, with the second slip having an arcuate inner face that has a second longitudinally disposed slot that has a third and fourth ledge therein; a third slip that has a third longitudinally disposed slot with a fifth and sixth ledge therein; a first insert having a shoulder that is configured to fit within the first ledge; a second insert having a shoulder that is configured to fit within the second ledge; a third insert having a shoulder that is configured to fit within the third ledge; a fourth insert having a shoulder that is configured to fit within said fourth ledge; a fifth insert having a shoulder that is configured to fit within the fifth ledge; a sixth insert having a shoulder that is configured to fit within the sixth ledge;
  • the method further comprises placing a first tubular member within the rotary table on the drill rig floor and inserting the slip device into the rotary table.
  • the slip device is engaged about the first tubular member so that the first insert, the second insert, the third insert, the fourth insert, fifth insert and the sixth insert engage the first tubular member suspending the first tubular member from the rotary table.
  • the method includes transferring the load of the first tubular member to the first insert, the second insert, the third insert, the fourth insert, the fifth insert, and the sixth insert, which in turn transfers the load to the first shoulder, the second shoulder, the third shoulder, the fourth shoulder, the fifth shoulder, and the sixth shoulder.
  • the method further includes transferring the load from the first, second, the third shoulder, the fourth shoulder, the fifth shoulder, and the sixth shoulder to the corresponding first, second, the third, fourth, fifth, and sixth ledge of the respective first, second and third slip.
  • the load of the first tubular member is distributed about the length of the first slip, the second slip and the third slip.
  • the method also comprises threadedly connecting a second tubular member to the first tubular member, and then removing the slip device from the rotary table.
  • the connected first tubular member and the second tubular member are lowered into the well bore and the slip device is inserted into the rotary table.
  • the slip device is engaged about the second tubular member and the load of the first and the second tubular member is transferred to the first, the second, the third, the fourth, the fifth and the sixth insert which in turn transfers the load from the first, second, third, fourth, fifth, and sixth shoulder to the first, second, third, fourth, fifth, and sixth ledge of the respective first, second and third slip.
  • the load of the first and the second tubular member is distributed about the length of the first slip, the second slip and the third slip.
  • An advantage of the present invention is that the new slip design ensures that the total weight of the string is distributed more evenly over the full vertical height of all the slip segments. Another advantage is that each insert is supported individually in the insert slot. This ensures that the loading forces are distributed away from the bottom of the slip, which is the thinnest section, and hence more susceptible to failure.
  • the novel slip design will allow for longer slip lives. Yet another feature is that more weight can be suspended from the slips. For instance, the present design can be utilized in deep water drilling applications, since significant loads are created by the tubular work string. Still yet another advantage is that the inserts can be visually inspected when not in use for wear and fatigue. Yet another advantage is that the inserts can be easily replaced on the drill site.
  • a feature of the present invention is the angle machined into the ledge is complementary to the shoulder angle on the insert. Another feature is the gap between the individual longitudinal inserts in the event that an insert deforms longitudinally downward during use, the deformed insert will not press up against the adjacent insert. Another feature is that while rotary slips are shown, the invention is applicable to other slips such as, but not limited to, drill collar slips, casing slips and conductor slips.
  • FIG. 1 is a perspective view of the preferred embodiment of the assembled rotary slips of the present invention.
  • FIG. 2 is a cross-sectional view of the slips taken from line A-A of FIG. 1.
  • FIG. 3A is a side sectional view of a slip of the present invention without inserts.
  • FIG. 3B is an enlarged view of one embodiment of the ledge seen in FIG. 3A.
  • FIG. 3C is an enlarged view of a second embodiment of the ledge seen in FIG. 3A.
  • FIG. 4A is a cross-sectional view of a first embodiment of the insert of the present invention.
  • FIG. 4B is a cross-sectional view of a second embodiment of the insert of the present invention.
  • FIG. 4C is a cross-sectional view of a third embodiment of the insert of the present invention.
  • FIG. 5 is a back view of a preferred embodiment of an insert of the present invention.
  • FIG. 6 is a bottom view of the preferred embodiment of the insert taken from line A-A of FIG. 4.
  • FIG. 7A is a side view of the slip from FIG. 3 with the inserts disposed therein.
  • FIG. 7B is an enlarged view of the bottom end of the slip seen in FIG. 7A.
  • FIG. 8 is a partial cross-sectional view of the slip engaging a tubular member.
  • FIG. 9 is a partial cross-sectional view of the slips engaging a tubular member within a slip bowl.
  • FIG. 10 is a partial cross-sectional view of the spring hinge assembly used with this invention.
  • the rotary slips 2 are also sometimes referred to as a tubular handling device 2 .
  • the rotary slips 2 include a first slip 4 , with the first slip 4 having a generally arcuate inner face 6 and a generally arcuate outer face 8 .
  • the slip 4 has a top end 10 and a bottom end 12 .
  • the slip's profile is generally in a wedge shaped contour with the outer face 8 being tapered to the bottom end 12 .
  • the slip 4 contains a handle member 14 , with the handle member 14 being connected to the slip 4 with conventional means such as pins and cotters.
  • Attachment means for attaching the slip 4 with the slip 20 includes the slip 4 containing a pair of projections 16 a, 16 b that have openings therein for placement of a hinge spring assembly 18 (which is also seen in FIG. 10) for connection with the second slip 20 .
  • the outer face and inner face are connected by a series of ribs.
  • the slips may be formed as a single wedge block, however, that tends to make the slips very heavy.
  • the rotary slips 2 generally are lighter, but retain the necessary strength and integrity for use in grasping and holding onto tubular members, as will be understood by those of ordinary skill in the art.
  • the inner face 6 will have disposed therein the novel insert members that will be described in greater detail later in the application.
  • the second slip 20 also contains a generally arcuate inner face 22 and a generally arcuate outer face 24 .
  • the slip 20 has a top end 26 and a bottom end 28 .
  • the slip's profile is generally in a wedge shaped contour with the outer face 24 being tapered to the bottom end 28 .
  • the second slip 20 contains a handle member 30 , with the handle member 30 also being connected to the slip 20 with conventional means such as pins and cotters.
  • the slip 20 also includes a pair of projections 32 a, 32 b that have openings therein for placement of the hinge spring assembly 18 for connection with the first slip 4 .
  • the inner face 22 will have disposed therein the novel insert members that will be described in greater detail later in the application.
  • the second slip 20 also contains second attachment means for attaching to the third slip 38 which includes a second pair of projections 34 a, 34 b that also have openings therein for placement of a hinge spring assembly 36 for connection with the third slip 38 .
  • the third slip 38 also contains a generally arcuate inner face 40 and a generally arcuate outer face 42 .
  • the slip 38 has a top end 44 and a bottom end 46 .
  • the slip's profile is also a wedge shaped contour with the outer face 42 being tapered to the bottom end 46 .
  • the third slip 38 contains a handle member 48 , with the handle member 48 also being connected to the third slip 38 with conventional means such as pins and cotters, as stated earlier.
  • the slip 38 also contains a pair of projections 50 a, 50 b that have openings therein for placement of the hinge spring assembly 36 for attachment with the second slip 20 .
  • the inner face 40 will have disposed therein the novel insert members that will be described in greater detail later in the application.
  • FIG. 2 a cross-sectional view of the slips without inserts taken from line A-A of FIG. 1.
  • first slip 4 with the inner face 6
  • inner face 6 having a longitudinally disposed slot 54 .
  • the slot 54 will cooperate with the inserts, as will be explained later in the application.
  • FIG. 2 also shows the rib 21 connecting the inner face 6 with the outer face 8 , as previously noted.
  • the first slip 4 is attached to the second slip 20 via hinge spring assembly 18 through the projections 16 a of first slip 4 and the projections 32 a of second slip 20 .
  • FIG. 2 Also shown in FIG. 2 is the second slip 20 with the inner face 22 , and further, the inner face 22 having a longitudinally disposed slot 56 .
  • the slot 56 will cooperate with the inserts, as will be explained later in the application.
  • FIG. 2 also shows the rib 58 connecting the inner face 22 with the outer face 24 , as previously noted.
  • the second slip 20 is attached to the third slip 38 via hinge spring assembly 36 through the projections 34 a of second slip 20 and the projections 50 a of third slip 38 .
  • FIG. 2 also depicts the third slip 38 with the inner face 40 , and further, the inner face 40 having a longitudinally disposed slot 60 .
  • the slot 60 will cooperate with the inserts, as will be explained later in the application.
  • FIG. 2 also shows the rib 62 connecting the inner face 40 with the outer face 42 , as previously noted.
  • FIG. 3A taken from line 3 A- 3 A of FIG. 2, a side sectional view of the slip 4 without inserts will now be described.
  • the FIG. 3A shows the arcuate outer face 8 tapering to the bottom end 12 .
  • FIG. 3A also depicts the arcuate inner face 6 along with the longitudinal slot 54 .
  • the arcuate inner face 6 extends to the bottom shelf 66 at one end and the arcuate inner face 6 extends to the top shelf 68 at the other end.
  • the arcuate inner face 6 will have a plurality of ledges disposed therein, namely ledge 70 , ledge 72 , ledge 74 , and ledge 76 .
  • Each ledge has an angled surface, which in the preferred embodiment is between plus 20 degrees and minus 20 degrees, and in one of the preferred embodiments is 10 degrees as denoted by the numeral 80 in FIG. 3A. It should be noted that in the most preferred embodiment, the angle will be 0 degrees i.e. radially flat. The angle of the ledge will cooperate with and be complementary to the angle on the shoulder of the insert that will rest thereon, as will be explained in further detail later in the application. It should be noted that the ledge 70 has a backside surface 82 disposed within slot 54 ; ledge 72 has a backside surface 84 ; ledge 74 has a backside surface 86 ; and, ledge 76 has a backside surface 88 . Further, it should be noted that while slip 4 and its features are explained with reference to FIG. 3A, all slips (namely slip 4 , slip 20 and slip 38 ) will be of essentially similar construction.
  • FIG. 3B is a enlarged view of one embodiment of the ledge seen in FIG. 3A.
  • FIG. 3B depicts an angle of plus 20 degrees; for example, ledge 72 has an angle of 20 degrees.
  • FIG. 3C is an enlarged view of another embodiment of the ledge seen in FIG. 3A.
  • FIG. 3C depicts an angle of minus 20 degrees; for example, ledge 74 has an angle, in this embodiment, of minus 20 degrees.
  • FIG. 4A a cross-sectional view of the insert 90 a, which is the preferred embodiment of this invention, will now be described. Since the insert 90 a is constructed to fit into the arcuate inner face 6 , the insert 90 a is also of arcuate construction.
  • the insert 90 a has an arcuate front side 92 a that contains the slip face gripping means as is well under stood by those of ordinary skill in the art.
  • the slip face gripping means includes teeth like projections arranged in rows for engaging with the tubular members.
  • the insert 90 a has a top side 93 a and an arcuate back side 94 a, with the back side containing a first surface 96 a that extends to the shoulder 98 a which in turn extends to the second surface 100 a.
  • the second surface concludes at the angled shoulder 102 a, with the angled shoulder being angled between plus 20 degrees and minus 20 degrees.
  • the shoulder is disposed at a 10 degree angle as denoted by the numeral 104 a as seen in FIG. 4A; as noted earlier, the most preferred embodiment is 0 degrees, i.e. radially flat.
  • the angled shoulder 102 a extends to the third surface 106 a, with the surface 106 a concluding at the bottom end 108 a.
  • FIG. 4B depicts a cross-sectional view of a second embodiment of the insert of the present invention, and more particularly, shows the shoulder with a plus 20 degree angle.
  • FIG. 4C is a cross-sectional view of a third embodiment of the insert of the present invention; thus, shoulder 102 a has a 20 degree angle of inclination.
  • FIG. 4C depicts the shoulder with a minus 20 degree angle; thus, the shoulder 102 a with this embodiment has a minus 20 degree angle of inclination.
  • FIG. 5 a back view of the insert 90 a seen in FIG. 4A will now be described.
  • the first surface 96 a is shown extending to the second surface 100 a along with the angled shoulder 102 a that in turn extends to the third surface 106 a.
  • FIG. 5 also depicts the side 10 a and the side 112 a.
  • FIG. 6 depicts the bottom view of the insert 90 a taken from line A-A of FIG. 4A. This view shows the arcuate nature of the insert 90 a. For instance, the second surface 100 a is shown arched. FIG. 6 also illustrates the arched front side 92 a with the teeth projections. The bottom end 108 a of insert 90 a is also shown. The side 110 a extends to the angled extension 114 and the side 112 a extends to the angled extension 116 .
  • the shoulder 102 a of insert 90 a is abutting the ledge 70 .
  • the angled shoulder 102 a which has a 10 degree angle, cooperates with the 10 degree angle of the ledge 70 .
  • the second surface 100 a is up against the backside surface 82 .
  • the second surface 100 b is abutting the backside surface 84 .
  • the insert's angled shoulder 102 b is abutting the ledge 72 .
  • the 10 degree angle of shoulder 102 b also cooperates with the 10 degree angle of the ledge 72 .
  • the second surface 100 c is up against the backside surface 86 .
  • the insert's angled shoulder 102 c is abutting the ledge 74 .
  • the angled shoulder 102 c has a 10 degree angle that cooperates with the 10 degree angle of the ledge 74 .
  • the second surface 100 d abuts the backside surface 88 .
  • the angled shoulder 102 d abuts the ledge 76 .
  • the 10 degree angle of shoulder 102 d cooperates with the 10 degree angle of the ledge 76 .
  • the bottom section would deflect and/or bend outward as denoted by arrow “A”; this is known as “toeing”.
  • the bottom section “T” is seen in FIG. 7A.
  • the gap “G” prevents the load from transferring to shelf 66 so that toeing is prevented. It is within the scope of this invention, however, that bottom end 108 d would abut shelf 66 even though this is not shown in FIG. 7A (for instance, see FIG. 7B and FIG. 8).
  • a gap did not exist, prior art toeing would still be prevented since the load is being distributed along the entire length of the slip according to the teachings of this invention i.e. the load is being distributed at ledges 70 , 72 , 74 , 76 .
  • FIG. 7B is an enlarged view of the bottom end of the slip seen in FIG. 7A with a slight difference: FIG. 7B depicts an enlarged view with the embodiment of the bottom end 108 d abutting the shelf 66 . In other words, the embodiment of FIG. 7B does not have a gap as seen in FIG. 7A.
  • FIG. 8 is a partial cross-sectional view of the slip 4 engaging a tubular member 120 .
  • the tubular member 120 is inserted into the rotary table on the drill floor and the slip device is inserted into the rotary table.
  • the teeth like projections, such as seen at 122 engage the slip 4 as well as the other two slips 20 , 38 (which are not shown in this view) thereby suspending the tubular member 120 from the rotary table.
  • the load of the tubular member 120 will be transferred from the teeth 122 , to the inserts, for instance to insert 90 a, then to the angled shoulder 102 a which in turn is transferred to the ledge 70 of the arcuate inner face 6 of slip 4 .
  • the arrow 124 depicts the point where the load is transferred from the shoulder 102 a to the ledge 70 .
  • the load will be transferred from the teeth of insert 90 b, then to the angled shoulder 102 b which in turn is transferred to the ledge 72 of the arcuate inner face 6 of slip 4 .
  • Arrow 126 illustrates the point where the load is transferred from the shoulder 102 b to the ledge 72 .
  • the insert 90 c the load will be transferred from the teeth of insert 90 c, then to the angled shoulder 102 c which in turn is transferred to the ledge 74 of the arcuate inner face 6 of slip 4 .
  • Arrow 128 illustrates the point where the load is transferred from the shoulder 102 c to the ledge 74 .
  • the load will be transferred from the teeth of insert 90 d, then to the angled shoulder 102 d which in turn is transferred to the ledge 76 of the arcuate inner face 6 of slip 4 .
  • the arrow 130 illustrates the point where the load is transferred from the shoulder 102 d to the ledge 76 .
  • the bottom end 108 d of the insert 90 d also transfers the load to the bottom end 12 of the slip 4 denoted by arrow 132 ; however, the load has been reduced due to the novel construction, namely the distribution along the entire length of the arcuate inner face 6 which allows for a much improved slip. It should be noted that a gap is depicted in FIG. 8.
  • a second tubular member 134 may also be threadedly connected to the first tubular member via external threads 136 as will be readily understood by those of ordinary skill in the art.
  • the operator lifts the tubulars and then removes the slip device from the rotary table.
  • the connected tubulars are then lowered to the desired level.
  • the slip 2 may again be inserted into the rotary table as understood by those of ordinary skill in the art.
  • FIG. 9 is a partial cross-sectional view of the slips engaging a tubular member within a slip bowl.
  • the rotary slip 2 is configured to fit into the rotary bowl 150 which in turn is set into the rotary bushing and rotary table on the rig floor, as is understood by those of ordinary skill in the art.
  • This view shows the that the slips engage the tubular member 134 .
  • the rotary slip 2 is then again inserted into the rotary bowl 150 and the rotary slip 2 is positioned to surround the second tubular member 134 . Further lowering of the tubular member 134 causes the slip device 2 to also be lowered into the rotary bowl 150 . Due to the wedge shaped design, the slip device 2 engages the tubular without the tubular falling through the slip bowl 150 .
  • the load of this tubular string (namely the tubular 120 and tubular 134 ) will be distributed about the ledges contained within each individual slip, namely slip 4 , slip 20 , and slip 38 as previously described. For instance, for the slip 4 of FIG. 8, the load is distributed about the ledges 70 , 72 , 74 and 76 , and shelf 66 .
  • FIG. 10 depicts a partial cross-sectional view of a hinge spring assembly 160 .
  • the hinge spring assembly is the type used as the hinge spring assembly 18 seen in FIG. 1 and the hinge spring assembly 36 also seen in FIG. 1.
  • the hinge spring assembly 160 is used to connect the slips, as previously noted. The hinge spring assembly tend to bind the slips together.
  • the hinge spring assembly 160 is commercially available from Access Oil Tools Inc. under the part number 03-108.

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US10/198,542 2002-07-16 2002-07-16 Tubular slip device and method Abandoned US20040011600A1 (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
US10/198,542 US20040011600A1 (en) 2002-07-16 2002-07-16 Tubular slip device and method
DE60316330T DE60316330T2 (de) 2002-07-16 2003-07-09 Röhrenförmige abfangkeilvorrichtung und verfahren
AU2003248909A AU2003248909A1 (en) 2002-07-16 2003-07-09 Tubular slip device and method
EP03764415A EP1551744B1 (de) 2002-07-16 2003-07-09 Röhrenförmige abfangkeilvorrichtung und verfahren
CA2492209A CA2492209C (en) 2002-07-16 2003-07-09 Tubular slip device and method
PCT/US2003/021495 WO2004007896A2 (en) 2002-07-16 2003-07-09 Tubular slip device and method
AT03764415T ATE372948T1 (de) 2002-07-16 2003-07-09 Röhrenförmige abfangkeilvorrichtung und verfahren
US10/810,228 US7134531B2 (en) 2002-07-16 2004-03-26 Heavy load carry slips and method
GB0616739A GB2429024B (en) 2002-07-16 2005-03-16 Heavy load carry slips and method
PCT/US2005/008827 WO2005100738A2 (en) 2002-07-16 2005-03-16 Heavy load carry slips and method
US11/545,704 US7398833B2 (en) 2002-07-16 2006-10-10 Heavy load carry slips and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/198,542 US20040011600A1 (en) 2002-07-16 2002-07-16 Tubular slip device and method

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US10/810,228 Continuation-In-Part US7134531B2 (en) 2002-07-16 2004-03-26 Heavy load carry slips and method

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US20040011600A1 true US20040011600A1 (en) 2004-01-22

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US10/198,542 Abandoned US20040011600A1 (en) 2002-07-16 2002-07-16 Tubular slip device and method
US11/545,704 Expired - Lifetime US7398833B2 (en) 2002-07-16 2006-10-10 Heavy load carry slips and method

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US11/545,704 Expired - Lifetime US7398833B2 (en) 2002-07-16 2006-10-10 Heavy load carry slips and method

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US (2) US20040011600A1 (de)
EP (1) EP1551744B1 (de)
AT (1) ATE372948T1 (de)
AU (1) AU2003248909A1 (de)
CA (1) CA2492209C (de)
DE (1) DE60316330T2 (de)
WO (1) WO2004007896A2 (de)

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US20040207223A1 (en) * 2003-04-21 2004-10-21 Bee Robert M. Pipe die method and apparatus
WO2005069867A3 (en) * 2004-01-14 2006-07-27 Brandmail Solutions Llc Method and apparatus for trusted branded email

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US7134531B2 (en) * 2002-07-16 2006-11-14 Access Oil Tools, Inc. Heavy load carry slips and method
GB2448257B (en) * 2004-03-26 2008-12-17 Access Oil Tools Inc Heavy load carry slips and method
JP2006175165A (ja) * 2004-12-24 2006-07-06 Nitta Ind Corp 車椅子
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CA2492209C (en) 2012-01-31
DE60316330T2 (de) 2008-06-05
AU2003248909A8 (en) 2004-02-02
ATE372948T1 (de) 2007-09-15
EP1551744A4 (de) 2006-04-12
EP1551744B1 (de) 2007-09-12
WO2004007896A2 (en) 2004-01-22
WO2004007896A3 (en) 2004-06-17
CA2492209A1 (en) 2004-01-22
EP1551744A2 (de) 2005-07-13
DE60316330D1 (de) 2007-10-25
US20070029094A1 (en) 2007-02-08
US7398833B2 (en) 2008-07-15

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