| SPIRAL DRILL COLLARS SHOULD BE SUPPLIED WITH SLIP AND ELEVATOR RECESS WITH STRESS RELIEF GROOVE WITH THREADS PROTECTORS ,THE RADIUS OF THE UPPER RECESS SHOULDER HAS TO BE COLD ROLLED. | SPIRAL DRILL COLLARS |
| SDC | SPIRAL DRILL COLLARS 9-1/2″ OD 31FT(+-6″) 7-5/8″ REG CONNECTION | SPIRAL DRILL COLLARS |
| SDC | SPIRAL DRILL COLLARS 8″ OR 8-1/4″ OD 31FT(+-6″) 6-5/8″ REG CONNECTION | SPIRAL DRILL COLLARS |
| SDC | SPIRAL DRILL COLLARS 6-1/2″ OR 6-1/4″ OD 31FT(+-6″) 4-1/2″ REG CONNECTION | SPIRAL DRILL COLLARS |
| SDC | SPIRAL DRILL COLLARS 4-3/4″ OD 31FT(+-6″) 3-1/2″ REG CONNECTION | SPIRAL DRILL COLLARS |
| DZT | SPIRAL 9-1/2″ OD PONY DRILL COLLARS(SAME ID),10 FT LONG WITH 7-5/8″ REG CONNECTION | SPIRAL DRILL COLLARS |
| DZT | SPIRAL DRILL COLLARS 8″ OR 8-1/4″ OD PONY DRILL COLLARS(SAME ID),10 FT LONG WITH 6-5/8″ REG CONNECTION | SPIRAL DRILL COLLARS |
| DZT | SPIRAL DRILL COLLARS 6-1/2″ OR 6-1/4″ OD PONY DRILL COLLARS(SAME ID),8-10 FT LONG WITH 4-1/2″ REG CONNECTION | SPIRAL DRILL COLLARS |
| DZT | SPIRAL DRILL COLLARS 4-3/4″ OD PONY DRILL COLLARS(SAME ID),6-10 FT LONG WITH 3-1/2″ REG CONNECTION | SPIRAL DRILL COLLARS |
| 9-1/2“ SPIRAL GROOVED DRILL COLLAR WITH SLIP AND ELEVATOR RECESSES FISHING NECK ID 3″ – OD 9-1/2″ , CONNE 7-5/8″ REG, STRESS RELIEF GROOVE ON PIN&BOX | SPIRAL DRILL COLLARS |
| 8-1/2“ SPIRAL GROOVED DRILL COLLAR WITH SLIP AND ELEVATOR RECESSES FISHING NECK ID 2-13/16″ – OD 8-1/4″ , CONNE 6-5/8″ REG, STRESS RELIEF GROOVE ON PIN&BOX | SPIRAL DRILL COLLARS |
| 6-1/2“ SPIRAL GROOVED DRILL COLLAR WITH SLIP AND ELEVATOR RECESSES FISHING NECK ID 2-1/4″ – OD 6-1/2″ , CONNE 4-1/2″ REG, STRESS RELIEF GROOVE ON PIN&BOX L | SPIRAL DRILL COLLARS |
| 4-3/4“ SPIRAL GROOVED DRILL COLLAR WITH SLIP AND ELEVATOR RECESSES FISHING NECK ID 2-1/4″ – OD 4-3/4″ , CONNE 3-1/2″ REG, STRESS RELIEF GROOVE ON PIN&BOX | SPIRAL DRILL COLLARS |
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