DST Tools 9 5 / 8" Full Bore Mechanical Set Retrievable Packer
9 5 / 8" RTTS Packer for Drill Stem Testing Service in 10000psi Working Pressure
Function and Operating Principle of the RTTS packer
The Construction of the RTTS packer is shown in the accompanying figure. When starting the RTTS
packer into the hole, place J-slot in the drag block sleeve in the locked position. The tool is run slightly
below the desired setting position and is then picked up tool to setting position and rotated pipe several
turns to right(on bottom, only 1/2 turn is required).Holding right torque in pipe, slack off the pipe weight
until mechanical slips on the tool set and start taking weight .At the same time the packer element is
compressed against the wall of the casing, then the packer can isolate the annular from the test zone.
Self-guard hydraulic hold down mechanism can prevent the packer from bouncing up because of the
high pressure below the packer. When it is extra, pressure can be into the annular space between the
volume tube, hydraulic hold down body and the lower mandrel through the radial hole on the lower
mandrel, then to reach the round hydraulic hold down slip and compress the slip retractor spring, then
the round hydraulic hold down slip lean against the inside wall of the casing closely and help prevent
the tool from being pumped up the hole.
Technical parameter of Mechanical setting retrievable packer
Specifications | 9 5/8" |
Casing Weight Range(lb/ft) | 9 5/8" 40-71.8lb/ft |
Packer Ring OD | 195.1mm |
Top Shoe OD | 198.1mm |
Min. ID of tool | 76.2mm |
Length | 2088mm |
Pressure differential across the pacing ring | 70MPa |
Tensile Strength(Yield) | 1557KN |
Torque Strength | 34KN·m |
Service environment | Mud, Crude Oil, Natural gas with H2S |
Service temperature | --29oC~+204oC |
End connections | 4 1/2" IF. BXP |
DST Tools 9 5/8" RTTS Packer parts
No. | P.N. | Description |
1 | 696.57385 | Packer Element 85 Duro (2 Required) 7" 23-29# -5.70" OD |
2 | OLD100004057(696.60393) | SLV, PKR, 80 Duro, 8.18 OD, 9 5/8 IN 36- 53.5 |
3 | 100004051(696.60002) | SEAL-O-Ring |
4 | 695.09127 | Bolt-Slip Insert-Imcone |
5 | 697.57144 | Spring Inconel, #625-DRA |
6 | 698.40593 | Slip-Round Hydrauic-7" |
7 | 698.40583 | Strap-Holding-7IN Champ |
8 | 696.60885 | Slip-Round Hydraulic |
9 | 696.60884 | Strap Hydraulic Slip |
* Interchangeable with Halliburton RTTS packer
DST Tools 9 5 / 8" Full Bore Mechanical Set Retrievable Packer
9 5 / 8" RTTS Packer for Drill Stem Testing Service in 10000psi Working Pressure
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