Volant CRTi2-5.5 - Manual (Page 3)

Summary of Selected Die Sizes Run with Cage 80996 10
Nom. Max. Pipe Min. Pipe Die Curv. Max. Tool Slip to Pipe Body Torque
Die P/N Pipe Size Weight 11 Weight 12 Diameter Diameter Tool Weight Load Eff. 2 Factor 4
(in) (ppf) (ppf) (in) (in) (lbs) (% Fy) (ft*lb/psi/ppf)
80981 7.0 23.0 17.0 6.48 13.0 550 67% 0.013
82013 7.0 26.0 20.0 6.39 13.0 550 71% 0.014
81284 7.0 32.0 26.0 6.21 13.0 550 78% 0.015
82328 7.63 29.7 24.0 6.15 13.0 660 79% 0.015
1 Characteristics are based on standard tool components and are independent of specific limitations of cage and accessories.
2 Tool hoist rating is based on API Specification 8C; however, casing load limit is further constrained by local interaction of slip dies with casing, which must not exceed the
efficiency indicated for individual slip die sizes to avoid excess deformation. The slip to casing interaction hoist limit is calculated by multiplying the slip to pipe body load
efficiency number by the casing hoist limit found in API Bulletin 5C2. From 5C2 the pipe body yield for 5.5” x 20.0 ppf L-80 Casing is 466,000 lbs. The slip efficiency for
die 81129 used to run this casing is 80%. Therefore, the casing hoist limit is 80% x 466,000 lbs = 372,800 lbs or 186.4 tons.
3 CRTi hoist capacity must be reduced by the pressure end load during circulation.
4 Torque capacity may be limited by slip die/casing interaction. Where torque factors are provided, multiply this factor by the desired casing weight in ppf then multiply the
result by the casing yield strength to determine the slip die/casing interaction torque limit. If no value is provided, tool rating will be limiting for all standard casing grades.
5 Cage torque capacity may be limiting. This limit can apply during combined load cases as well.
6 Maximum allowable compressive load applied to the tool. Some compressive load may be reacted through the coupling. This rating does not take into account bearing
load limitations of the coupling.
7 CRTi circulation pressure capacity is generally governed by packer cup pressure capacity. Pressure capacity may be less than indicated if alternative seal arrangements
are used.
8 Overall tool length depends on seal arrangement. A typical overall tool length is 59.0” for 5.5” to 7.63” casings and 65.0” for 8.63” to 13.38” casings.
9 Maximum flow rate is based on minimizing erosion rates when using typical fluids. Erosion rates may vary based on fluid contents. Please inspect tool bore regularly.
10 Common die sizes shown. All API casing sizes and weights with drift diameter above 4.65” are available. (Casing sizes with drift diameter above 4.54” are available with
some reduction in capacity.)
11 Maximum pipe weight is defined by the API Specification 5CT drift diameter of the heaviest weight casing into which the CRTi assembled with the specified die set will fit.
12 Indicated minimum pipe weight is based on the assumption that control of average pipe inside diameter over die grip interval does not allow pipe body area reduction
less than 3.5% from nominal and additionally takes into account tool wear allowances, die penetration, casing deformation and tool stroke.
Give us a problem. Or just drop us a line if you want to know more.
+1 866.8VOLANT / +1 866.886.5268 +1 780.784.7099 [email protected] volantproducts.ca
Document No. 20005 / Revision M Printed in Canada APRIL 2013
Casing Running Tools (CRTi 2-5.5)
CRTi2-5.5 | PAGE 3