647 - Critical Rotary Speed RPM DD
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Critical Rotary Speed (RPM) Critical Rotary Speeds Of B.H.A. Collar OD (in) 7 Collar ID (in) 3 Length of Collars (ft) 680 Order of Harmonic (1,3,5...) 1 Is The Bit A Tri-Cone ? y Is There A Shock Sub On The B.H.A. ? y Enter Spring Constant For Shock Sub (lbs/in) 40,000 Critical Longitudinal Rotary Speed (RPM) 46.5 Critical Torsional Rotary Speed (RPM) 78.3 Critical Rotary Speeds Of The Drillpipe Pipe OD (in) 5 Pipe ID (in) 4.276 Weight of Pipe (ppf) 21 Length of Pipe (ft) 7,500 Langth Between Tool Joints (ft) 30 Critical Nodal Rotary Speed (RPM) 241.6 Critical Longitudinal Rotary Speed (RPM) 34.4 Wipertrip.com
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critical RPM
Transcript of 647 - Critical Rotary Speed RPM DD
Critical Rotary Speed (RPM)
Critical Rotary Speeds Of B.H.A.
Collar OD (in) 7Collar ID (in) 3Length of Collars (ft) 680Order of Harmonic (1,3,5...) 1Is The Bit A Tri-Cone ? yIs There A Shock Sub On The B.H.A. ? yEnter Spring Constant For Shock Sub (lbs/in) 40,000
Critical Longitudinal Rotary Speed (RPM) 46.5Critical Torsional Rotary Speed (RPM) 78.3
Critical Rotary Speeds Of The Drillpipe
Pipe OD (in) 5Pipe ID (in) 4.276Weight of Pipe (ppf) 21Length of Pipe (ft) 7,500Langth Between Tool Joints (ft) 30
Critical Nodal Rotary Speed (RPM) 241.6Critical Longitudinal Rotary Speed (RPM) 34.4
Wipertrip.com
106.8 ppf Weight per Foot of Drill Collars72,624 lbs Weight of Drill Collars
2.32 Hz Longitudinal Frequency3.92 Hz Torsional Frequency
5 Hz Frequency Of BitN Is(Are) the Collar(s) Square ?
100 R.P.M. Rotary Speed
