Oil Drilling


Recent Rotary Rig Count May 17th, 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 

5/17/13 

1769
+0
5/10/13

-217

5/18/12

CANADA 

5/17/13
118
+5

5/10/13

0

5/18/12 

USA OFFSHORE 

5/17/13 

 52
+2
5/10/13

 +5

5/18/12 

INTERNATIONAL 

04/2013 

1301

 +33

3/2013 

 +123

4/2012 



Drilling Ahead

World Oilfield Forum

April 2010 Blog Posts (1)

Lag Time and How to Calculate Theoretical Lag Time

Lag time is traveling time interval required for pumping cuttings from each particular depth to surface. It can be expressed in terms of time (minutes) and pump strokes.





The lag time always changes when a well becomes deeper and/or pumping speed change. Two factors, affecting lag time…
Continue

Added by Rachain Jetjongjit on April 1, 2010 at 1:30am — 12 Comments

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