Heavy load carry slips and method
View Patent ↗A tubular handling device. The device includes a plurality of slips, and wherein the slips have an arcuate inner face that has a longitudinally disposed slot and a ledge therein. The device further comprises an insert having a shoulder that is configured to fit within the ledge, and wherein the insert is capable of transferring a load from the shoulder to the ledge. In one preferred embodiment, the outer portion of the slips have a taper of greater than 11 degrees and a complementary bowl insert is provided that has a matching taper. A method of handling tubular members on a drilling rig is also disclosed.
1. A method of running a landing string into a subsea well on a floating rig, the method comprising:
providing a bowl insert having an inner portion, said inner portion having a taper of greater than 11 degrees; a slip device having dies for securing the work string within a rotary table on the rig, said slip device having an outer portion configured to fit into said inner portion of said bowl insert, said outer portion having a taper complementary of the bowl insert taper; wherein said slip device having a plurality of slots, wherein said slots having a plurality of ledges disposed therein; and wherein said dies each have shoulders, and wherein said shoulders are configured to fit within said ledges and said shoulders are capable of transferring a load from said shoulders to said ledges;
attaching the landing string to a bottom hole assembly;
lowering a first tubular of the landing string through the rotary table located on the floating rig and into a marine riser, said marine riser connecting said floating rig to said sub-sea tree located on the sea floor;
placing the slip device into the rotary table;
lowering the first tubular;
engaging the dies of the slip device with the first tubular;
transferring the weight of the landing string from said dies to said shoulder so that the weight of the landing string is transferred axially;
transferring the weight from said shoulder to said ledge so that the weight of the landing string is transferred transversely;
suspending the landing string within the rotary table;
disengaging the dies from the first tubular;
removing the slip device from the rotary table.
2. The method of claim 1 further comprising:
lowering a second tubular of the landing string through the rotary table located on floating the rig and into the marine riser;
placing the slip device into the rotary table;
lowering the second tubular;
engaging the dies of the slip device with the second tubular;
transferring the weight of the landing string axially;
transferring the weight of the landing string transversely;
suspending the landing string within the rotary table;
disengaging the dies from the second tubular;
removing the slip device from the rotary table.
3. The method of claim 2 further comprising:
lowering a third tubular of the landing string into the rotary table located on the rig;
placing the slip device into the rotary table;
lowering the third tubular;
engaging the dies of the slip device with the third tubular;
transferring the weight of the landing string axially;
transferring the weight of the landing string transversely;
suspending the landing string within the rotary table;
disengaging the dies from the third tubular;
removing the slip device from the rotary table.
4. The method of claim 3 wherein said inner portion taper of said bowl insert is between 11 degrees and 15 degrees relative to the vertical axis.
5. The method of claim 3 wherein said outer portion taper of said slip means is between 12 degrees and 14 degrees relative to the vertical axis.
6. The method of claim 3 wherein said inner portion taper of said bowl insert is 12 degrees relative to the vertical axis and said outer portion taper of said slip means is a complimentary angle of 12 degrees relative to the vertical axis.
7. A method of running a landing string into a sub-sea well on a floating rig, the floating rig having a marine riser extending therefrom, with the marine riser being attached to a sub-sea tree located on a sea floor the method comprising:
providing a bowl insert having an inner portion, said inner portion having a taper of greater than 11 degrees; a slip device having dies for securing the work string within a rotary table on the rig, said slip device having an outer portion configured to fit into said inner portion of said bowl insert, said outer portion having a taper complementary of the bowl insert taper and wherein said dies contain a plurality of shoulders and said slip device contains a plurality of ledges which are configured to engage with said shoulders;
providing a tubular string concentrically positioned within said marine riser and within said sub-sea well;
attaching the landing string to the tubular string;
lowering a first tubular of the landing string into the rotary table located on the floating rig and into said marine riser;
placing the slip device into the rotary table;
lowering the first tubular;
engaging the dies of the slip device with the first tubular;
transferring the weight of the landing string axially by transferring the weight from the dies to the shoulder of the dies;
transferring the weight from said shoulder to said ledge so that the weight of the landing string is transferred transversely;
suspending the landing string within the rotary table;
disengaging the dies from the first tubular;
removing the slip device from the rotary table.
8. The method of claim 7 further comprising:
lowering a second tubular of the landing string into the rotary table located on the floating rig and into said marine riser;
placing the slip device into the rotary table;
lowering the second tubular;
engaging the dies of the slip device with the second tubular;
transferring the weight of the landing string axially by transferring the weight from the dies to the shoulder of the dies;
transferring the weight from said shoulder to said ledge so that the weight of the landing string is transferred transversely;
suspending the landing string within the rotary table;
disengaging the dies from the second tubular;
removing the slip device from the rotary table.
9. The method of claim 7 wherein said inner portion taper of said bowl insert is between 11 degrees and 15 degrees relative to the vertical axis.
10. The method of claim 7 wherein said outer portion taper of said slip means is between 12 degrees and 14 degrees relative to the vertical axis.
11. The method of claim 7 wherein said inner portion taper of said bowl insert is 12 degrees relative to the vertical axis and said outer portion taper of said slip means is a complimentary angle of 12 degrees relative to the vertical axis.