| Product Description CHAMP V packer is a hook wall-retrievable packer with a concentric bypass. As the tool is lowered into the hole, a J-slot holds the bypass open and controls the setting of the packer. When the packer is set, a balancing piston activated by tubing pressure holds the bypass closed. Each tool assembly includes a J-slot mechanism, mechanical slips, packer elements, hydraulic slips, and a bypass. Round, piston-like slips used in the hydraulic hold down mechanism prevent the tool from being pumped up the hole. The bypass allows fluids to pass around the bottom of the tool when it is removed from the hole. This design eliminates accidentally opening a conventional bypass during circulation around the bottom of the packer Circulation around the CHAMP V packer is not interrupted if the packer element temporarily seals unintentionally as when it passes through points of interference in the casing. The CHAMP V packer is well suited to tubing conveyed perforating applications where the firing head assembly is easily incorporated into the CHAMP V packer. The CHAMP V packer is ideally suited for horizontal applications due to its limited rotational requirements and integrated circulating valve. Just a quarter-turn is required, at the tool, to set the packer and close the circulating valve. A straight upward pull opens the circulating valve and unseats the packer. Features and Benefits■ The packer is used in highly deviated wells or where pipe manipulation is difficult. ■ Picking the packer straight up (no torque required) opens the bypass. ■ The tool is easily relocated in multiple zones during a single trip for treating, testing or squeezing. ■ The concentric bypass valve allows a larger bypass flow area. ■ The CHAMP V packer is used with a retrievable bridge plug for straddling zones during various operations. ■ A CHAMP V packer would be the tool of choice where positive circulation below the packer is required such as in drill stem testing, TCP applications, using tailpipe, for shallow service, and as liner tools. Operation The tool is run slightly below the necessary setting position. If the packer is to be set, it must be picked up, and right-hand rotation must be applied so that a half-turn can be obtained at the tool. In deep or deviated holes, several turns with the rotary may be necessary. For the position to be maintained, the right-hand torque must be held until the mechanical slips on the tool are set and can begin taking weight. Pressure applied below the packer forces the hydraulic hold down slips against the casing to prevent the packer from being pumped up the hole. The concentric bypass valve is balanced to the tubing surface pressure, which prevents the bypass from being pumped open with tubing pressure. Straight, upward pull on the tubing string opens the bypass and unsets the packer. |
 |
Casing Size in. |
Packer OD in.(cm) |
Packer ID in.(cm) |
End Connections |
Nominal Casing Weight Ib/ft |
Minimum Casing Drift ID in.(cm) |
Maximum Casing ID in.(cm) |
Length in.(cm) |
Tensile Rating lb(kg) |
Working Pressure psi(kPa) |
| 5" |
4.18 (10.62) 4.25 (10.795) 4.31 (10.954) |
1.65 (4.20) |
2 7/8 CAS |
11.5-15 |
4.70 (11.948) |
4.78 (12.141) |
113.9 (289.3) |
139,926 (63 469) |
Burst 17,951 (123 800) Collapse 16,835 (116 100) |
| 3.98 (10.11) 4.15 (10.54) |
1.65 (4.20) |
2 7/8 CAS |
18-21.4 |
4.56 (11.59) |
4.64 (11.78) |
113.6 (288.55) |
|||
| 7" |
6.35 (16.129) 6.25 (15.875) 6.15 (15.621) 6.05 (15.367) |
2.24 (5.70) |
3 7/8 CAS 31/2 IF |
17-26 |
6.64 (16.861) |
6.77 (17.193) |
131.44 (333.86) 130.9 (332.57) |
230,361 (104 490) |
Burst 23,403 (161 400) Collapse 21,663 (149 400) |
| 5.93 (15.062) 5.77 (14.659) 5.75 (14.605) |
2.24 (5.70) |
3 7/8 CAS 31/2 IF |
29-35 |
6.50 (16.515) |
6.59 (16.744) |
131.44 (333.86) 130.9 (332.57) |
230,361 (104 490) |
Burst 23,403 (161 400) Collapse 21,663 (149 400) |
|
| 5.65 (14.35) |
2.24 (5.70) |
3 7/8 CAS 31/2 IF |
38 |
6.46 (16.408) |
6.46 (16.408) |
131.44 (333.86) 130.9 (332.57) |
230,361 (104 490) |
Burst 21,533 (148 500) Collapse 19,938 (137 500) |
|
| 9-5/8" |
8.70 (22.098) 8.65 (21.971) 8.55 (21.717) 8.45 (21.463) |
2.874 (7.30) |
3 7/8 CAS 31/2 IF 4 1/2 IF |
29.3-40 |
9.23 (23.445) |
9.31 (23.656) |
144.88 (368.0) 145.04 (368.4) 145.67 (370.0) |
431,589 (195 765) |
Burst 21,982 (151 600) Collapse 20,880 (144 000) |
| 8.35 (21.209) 8.25 (20.955) 8.10 (20.574) 8.00 (20.32) |
2.874 (7.30) |
3 7/8 CAS 31/2 IF 4 1/2 IF |
43.5-58.4 |
9.03 (22.937) |
9.19 (23.343) |
144.88 (368.0) 145.04 (368.4) 145.67 (370.0) |
431,589 (195 765) |
Burst 21,982 (151 600) Collapse 20,880 (144 000) |
|
| 8.00 (20.32) 7.95 (20.193) 7.80 (19.812) |
2.874 (7.30) |
3 7/8 CAS 31/2 IF 4 1/2 IF |
59.4-71.8 |
8.89 (22.584) |
9.01 (22.891) |
144.88 (368.0) 145.04 (368.4) 145.67 (370.0) |
431,589 (195 765) |
Burst 18,604 (128 300) Collapse 17,328 (119500) |