EM MWD Gap Subs
No ceramic-coated threads
No electrical resistance degradation over time
Max temperature of 175
EM ISOLATION GAP SUB SPECIFICATIONS
| Sub O.D. | 4-3/4" | 6-1/2" | 8" |
| Sub I.D. | 2.75" | 2.81" | 3.188" |
| Length (shoulder to shoulder) | 38.7" | 39.56" | 45.5" |
|
Length (pin shoulder to mid-external gap) |
17.5" | 18.25" | 20.25" |
|
Length (pin shoulder to mid-internal gap) |
23.4" | 24.375" | 28.0" |
| End Threads |
3-1/2” IF Pin X Box or Customer Choice |
4-1/2” XH Pin X Box or Customer Choice |
6-5/8” Reg Pin X Box or Customer Choice |
| Max Downhole Pressure | 20,000 psi | 22,000 psi | 25,000 ps |
| Max Pull and Reuse | 250,000 lbs | 375,000 lbs | 475,000 lbs |
| Max Pull Before Failure | 480,000 lbs | 1,175,000 lbs | 1,475,000 lbs |
| Max Operating Torque | 24,000 ft/lbs | 48,000 ft/lbs | 55,000 ft/lbs |
| Max Dogleg Severity (rotating) | 18˚/100 ft | 12˚/100 ft | 7˚/100 ft |
| Max Dogleg Severity (sliding) | 32˚/100 ft | t 22˚/100 ft | 12˚/100 ft |
