How to specify diesel engines for oil well drilling rigs?

Require to purchase 1000 rpm and 1000 HP diesel engines for our drilling rigs. A broad based specification is required.How to specify diesel engines for oil well drilling rigs?
SPECIFICATIONS:





1. Length of Stroke 7 feet, 4 inches


2. Pull up Capacity 2,000 lbs.


3. Engine Module Ruggerini 191, 19 hp/3600rpm or equivalent,


Air Cooled Diesel Oil Pump,


20gpm@ 1500 psi.


4. Unit Dimensions -


21'; W x 34'; L x 45'; H


Includes 14 gallon oil tank.


5. Mast 120'; L x 4'; tube


Motor 15.2/ gpm, for 5' or 2 meter drillpipe.


6. Swivel


Assembly Weight 53 lbs.


(rated at 750 psi)


J-Tool with 2 3/8'; MJR Thread.


(Pull Up Capacity 6,700 lbs.)


Motor Max. oil flow 12 gpm


7. Mud Pump: For Mud Drilling


Dimensions: Based on hole size and total expected depths.


Example: 10 hp Diesel Engine with GR self-prime centrifugal to depths of 200 ft.


7 hp Diesel Engine with GR self-prime centrifugal to depths of 110 ft.How to specify diesel engines for oil well drilling rigs?
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