HORIZON WELL LOGGING      
 
MORNING REPORT FOR: 03-Mar-05     TIME: 6:00 AM  
COMPANY: U.S. Navy     WELL: FOH #3 D  
DEPTH @ 06:00: 8583' DEPTH YESTERDAY @ 06:00 8500' 24 HR FOOTAGE: 83'
LAST CASING RUN: 7" at 2938'   REPORT #: 12  
 
 
DRILLING DATA
DRILLING TIME: 9.3 hrs REAMING:    1 hr  
CIRCULATE TIME: 1 hrs.    
      WOB 18-20,000    
DRILL RATE:       RPM 60    
  MINIMUM - 4 ft/ hr    @ 8501'   PP 1125-1250    
  MAXIMUM -  36 ft/hr     @ 8532'   SPM 1      
  AVERAGE - 8.6 ft/hr       SPM 2 41-44    
                   
 
      MUD SYSTEM      
TEMPERATURE IN: MINIMUM - 120   CUMULATIVE MUD LOSS: 1453 BBLS
Degrees F MAXIMUM - 141   MAXIMUM LOSS RATE: 7 B/HR
    CURRENT- 140   CURRENT LOSS RATE: 5 B/HR
TEMPERATURE OUT: MINIMUM - 155   LOSS REMARKS:  Lost 3 bbls on trip  
Degrees F MAXIMUM - 165       lost 54 bbls/24 hrs.  
    CURRENT- 163            
CARBON DIOXIDE: MINIMUM - 360        
ppm MAXIMUM - 360   TRIP TEMPERATURE: 150 F    
    CURRENT- 360   TRIP GAS 0      
DITCH GAS: MAXIMUM - 0      
UNITS AVERAGE - 0   PIT VOLUME 360 bbls    
 
LITHOLOGY SURVEYS
CURRENT LITHOLOGY: RHYOLITE/FELSITE          
AVERAGE LITHOLOGY: VITRIC TUFF/RHYOLITE   12 deg @ 8464'  
GENERAL DESCRIPTION: Dom wht rhyolite unit similar as before, with MRT=254 F    
interbeds of faster drilling felsite; pl to dk grn; fn gr, occ fspr phenos, chloritic,  
mottled/massv, calc, tr epidote, rr pyr, poss metaseds due to occ         
relic sbrnd grainy tex.      
CUTTINGS SIZE:   2.3 mm          
CUTTINGS DENSITY: 15.4 ppg        
                   
     
COMMENTS                
  Survey, POH, change bit, RIH, ream f/8408' to 8500' drill to 8583'    
       
       
       
  RRB#1 Varel 537 ETD, 6.125", In @8500' 83'/9.3 hrs    
  Mud Cooler Off        
            25  degrees atmospheric temp