Drilling Spools
Drilling spool is designed to connect the BOP and wellhead, both side outlets of spool can be connected with valves or manifold to prevent blowout. All drilling spools are designed and manufactured as per API Spec 6A & 16A, conforming to NACE MR 0175 standard for anti- H2S. As per connection method, both Flanged spool and studded spool are available.
Drilling Spools Specification
| Drilling Spool | 18-35 | 18-70 | 18-105 | 28-35 | 28-70 | 28-105 |
| Nominal Diameter (mm) | Φ185 | Φ185 | Φ180 | Φ280 | Φ280 | Φ280 |
| Working Pressure (Mpa/psi) | 35/5,000 | 70/10,000 | 105/15,000 | 35/5,000 | 70/10,000 | 105/15,000 |
| Bypass Diameter (mm) | Φ103 | Φ103/Φ78 | Φ103/Φ78 | Φ103 | Φ103/Φ78 | Φ103/Φ78 |
| Top and Bottom Connection Flange | API 6B 18-35 R46 | API 6BX 18-70 BX156 | API 6BX 18-105 BX156 | API 6B 28-35 R46 | API 6BX 28-70 BX156 | API 6BX 28-105 BX156 |
| Side Connection Flange | API 6B 103-35 R39 | API 6BX 103-70 BX155 (Φ103) | API 6BX 103-105 BX155 (Φ103) | API 6B 103-35 R39 | API 6BX 103-70 BX155 (Φ103) | API 6BX 103-105 BX155 (Φ103) |
| API 6BX 78-70 BX155 (Φ78) | API 6BX 78-105 BX155 (Φ78) | API 6BX 78-70 BX155 (Φ78) | API 6BX 78-105 BX155 (Φ78) | |||
| Applicable Temperature (℃) | -29~+121 | 29~+121 | 29~+121 | -29~+121 | 29~+121 | 29~+121 |
| Overall Dimension (L x W x H) mm | 680x395x584 | 830x480x600 | 880x505x700 | 950x585x650 | 950x655x650 | 1,050x812x800 |
| Weight (kg) | 620 | 600 | 900 | 850 | 800 | 1,800 |
| Drilling Spool | 35-21 | 35-35 | 35-70 | 35-105 | 53-21 | 54-14 |
| Nominal Diameter (mm) | Φ346 | Φ346 | Φ346 | Φ346 | Φ530 | Φ280 |
| Working Pressure (Mpa/psi) | 21/3,000 | 35/5,000 | 70/10,000 | 105/15,000 | 21/3,000 | 14/2,000 |
| Bypass Diameter (mm) | / | Φ103 | Φ103/Φ78 | Φ103/Φ78 | / | / |
| Top and Bottom Connection Flange | / | API 6B 35-35 R46 | API 6BX 35-70 BX156 | API 6BX 35-105 BX156 | / | / |
| Side Connection Flange | / | API 6B 103-35 R39 | API 6BX 103-70 BX155 (Φ103) | API 6BX 103-105 BX155 (Φ103) | / | / |
| / | API 6BX 78-70 BX155 (Φ78) | API 6BX 78-105 BX155 (Φ78) | / | / | ||
| Applicable Temperature (℃) | -29~+121 | 29~+121 | 29~+121 | -29~+121 | 29~+121 | 29~+121 |
| Overall Dimension (L x W x H) mm | 950x610x600 | 1,100x672x650 | 1,100x768x650 | 1,390x880x1,000 | 1,250x812x800 | 1,250x812x800 |
| Weight (kg) | 1,050 | 1,100 | 1,280 | 2,100 | / | / |