Oil Drilling


Recent Rotary Rig Count May 10th, 2013



AREA

 LAST
COUNT
DATE

COUNT 

CHANGE FROM
PRIOR COUNT
 

DATE OF
PRIOR COUNT 

 CHANGE FROM
LAST YEAR

DATE
OF LAST
 YEARS COUNT 

UNITED STATES 

5/10/13 

1769

+5

5/3/13

-205

5/11/12

CANADA 

5/10/13

118

-3

5/3/13

-2

5/11/12 

USA OFFSHORE

5/10/13 

 50

-1

5/3/13

 +5

5/11/12 

INTERNATIONAL

04/2013 

1301

 +33

3/2013 

 +123

4/2012 

Drilling Ahead

World Oilfield Forum

All Blog Posts Tagged 'formulas' (2)

Cutting Slip Velocity Calculation - the first way

Cutting slip velocity is velocity of cutting that naturally falls down due to its density. In order to effectively clean the hole, effect of mud flow upward direction and mud properties must be greater than cutting slip velocity (settling tendency of cuttings). Otherwise, cutting will fall down and create cutting… Continue

Added by Rachain Jetjongjit on September 2, 2011 at 10:00am — No Comments

Well Control Formulas

These are some well control formulas that I have learned from my well control school and I would like to share with you guys. Please feel free to comments or give me suggestions.



Pressure (P) - psi



Pressure (psi) = Force (lb) / Area in Square Inch (in 2)…



Continue

Added by Rachain Jetjongjit on October 18, 2010 at 12:30am — 7 Comments

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