Volant CRTi2-4.5 User Manual
Casing Running Tools (CRTi 2-4.5)
Casing Running Tool with Internal Grip (CRTi™)
Volant’s CRTi is designed for casing drilling or running with top drive equipped rigs to makeup, breakout,
reciprocate, rotate, ll/circulate, and cement casing and liner strings, reducing non productive time and
associated costs. This tool is mechanically activated in tension and both rotational directions solely by top
drive control using TAWG™ (Torque Activated Wedge Grip) technology.
This patented architecture puts control in the hands of the driller, reducing the need for third party support
to run casing. Simple intuitive operating steps for pipe engagement and release closely emulate the familiar
make and break steps used to run drill pipe – stab, rotate to the right to engage and reverse to disengage.
Similarly, rig-in and rig-out steps are simple, intuitive and efcient.
Starting from the insertion diameter of the base tool, selectable sizes of integral jaws/dies are used to
congure the CRTi to support gripping casing of increasing internal diameter (decreasing weight).
Tool Model: CRTi 2-4.5
Specication Summary
Base Tool Characteristics
CRTi Rated Load Capacity Hoist
Torque
Combined Load Large Hoist Hoist ton 100
Torque ft.lbs 6,000
Combined Load High Torque Hoist ton 50
Torque ft.lbs 10,000
Compression Capacity
Typical Circulation Pressure Limit
Maximum Pressure End Load ton 50
Base Tool Length in 41.0
Overall Tool Length8 in 46.0
Tool Stroke in 0.47
Through Hole in 1.0
Maximum Flow Rate9 m3/min 1.1
Tool Joint NC50
Turns to Stroke Out 1.78
6
ton 70
2,3
ton 120
4,5
ft.lbs 13,000
3,7
psi 5,000
1
Tool Conguration
with Integral Slip Dies
Cage Torque Capacity
Cage P/N Torque Capacity5
(ft.lbs)
81325 10,000
80939 13,000
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 sales@volantproducts.ca volantproducts.ca
Document No. 20004 / Revision L Printed in Canada APRIL 2013
CRTi2-4.5 | PAGE 1
Casing Running Tools (CRTi 2-4.5)
Summary of Selected Die Sizes Run with Cage 81325
Nom. Max. Pipe Min. Pipe Die Curv. Max. Tool Slip to Pipe Body Torque
Die P/N Pipe Size Weight 11 Weight
(in) (ppf) (ppf) (in) (in) (lbs) (% Fy) (ft*lb/psi/ppf)
12
Diameter Diameter Tool Weight Load Eff.2 Factor
10
4
80957 4.5 13.5 9.5 4.08 11.0 320 80% 0.013
82000 5.0 18.0 15.0 4.44 11.0 350 80% 0.012
80980 5.5 17.0 14.0 5.06 11.0 350 70% 0.010
81182 5.5 23.0 20.0 4.84 11.0 350 78% 0.011
Summary of Selected Die Sizes Run with Cage 80939
Nom. Max. Pipe Min. Pipe Die Curv. Max. Tool Slip to Pipe Body Torque
Die P/N Pipe Size Weight
(in) (ppf) (ppf) (in) (in) (lbs) (% Fy) (ft*lb/psi/ppf)
11
Weight
12
Diameter Diameter Tool Weight Load Eff.2 Factor
10
4
80957 4.5 11.6 9.5 4.08 11.0 320 80% 0.013
82000 5.0 18.0 15.0 4.44 11.0 350 80% 0.012
80980 5.5 17.0 14.0 5.06 11.0 350 70% 0.010
81182 5.5 23.0 20.0 4.84 11.0 350 78% 0.011
1 Characteristics are based on standard tool components and are independent of specic limitations of cage and accessories.
2 Tool hoist rating is based on API Specication 8C; however, casing load limit is further constrained by local interaction of slip dies with casing, which must not exceed the
efciency 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
efciency 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 efciency 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.
9 Maximum ow rate is based on minimizing erosion rates when using typical uids. Erosion rates may vary based on uid 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 dened by the API Specication 5CT drift diameter of the heaviest weight casing into which the CRTi assembled with the specied die set will t.
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 sales@volantproducts.ca volantproducts.ca
Document No. 20004 / Revision L Printed in Canada APRIL 2013
CRTi2-4.5 | PAGE 2
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