Relief Wells and Subsea Containment

RELIEF WELL #2 DISCOVERER ENTERPRISE DRILL SHIP RELIEF WELL #1 Development Driller II Original MC 252 #1 Subsea Containment Development Driller III Spudded May 2nd at 15:27 hrs 1CSG-36 Seabed Depth: 5,249' RKB CSG-28 5,000 t. CSG-36 1CSG-36 1CSG-28 CSG-28 CSG-22 CURRENT PROGRESS > 28" Casing String Set & Cemented In Place > Depth Reached: 8,762' - 12:00 May 7th > 22" Casing Set & Cemented - 12:00 May 8th > BOP Maintenance & Testing - May 9th > Running the BOP - May 14th 1CSG-18 CSG-22 CSG-22 CSG-16 CSG-18 CSG-18 10,000 t. ALNR-13 5/8 CSG-16 LNR-13 5/8 ALNR-13 5/8 bp LNR-117/8 LNR 117/8 LNR-9 5/8 Planned Intersection Depth: +18,000' MD-RKB OVERVIEW BP intends to drill two wells designed to intersect the original wellbore above the oil reservoir. This will allow heavy fluid to be pumped into the well which will stop the flow of oil from the reservoir. Cement will then be pumped CSG 7 RESERVOIR 15,000 ft. down to permanently seal the well. RELIEF WELLS & SUBSEA CONTAINMENT DISCOVERER ENTERPRISE DRILL SHIP RELIEF WELL #2 RELIEF WELL #1 Original MC 252 #1 Subsea Containment Development Driller II Development Driller III Spudded May 2nd at 15:27 hrs CSG-36 Seabed Depth: 5,249' RKB CSG-28 CSG-36 5,000 t. CSG-36 CSG-28 CSG-28 CSG-22 CURRENT PROGRESS > 28" Casing String Set & Cemented In Place > Depth Reached: 8,762' - 12:00 May 7th > 22" Casing Set & Cemented - 12:00 May 8th > BOP Maintenance & Testing - May 9th > Running the BOP - May 14th 1CSG-18 CSG-22 CSG-22 CSG-16 CS-18 CSG-18 ALNR-13 5/8 CSG-16 LNR-13 5/8 LNR-13 5/8 bp LNR 117/8 LNR-117/8 LNR-9 5/8 Planned Intersection Depth: +18,000' MD-RKB OVERVIEW BP intends to drill two wells designed to intersect the CSG 7 RESERVOIR original wellbore above the oil reservoir. This will allow heavy fluid to be pumped into the well which will stop the 15,000 f. flow of oil from the reservoir. Cement will then be pumped RELIEF WELLS & down to permanently seal the well. SUBSEA CONTAINMENT DISCOVERER ENTERPRISE DRILL SHIP RELIEF WELL #2 RELIEF WELL #1 Original MC 252 #1 Subsea Containment Development Driller II Development Driller III Spudded May 2nd at 15:27 hrs CSG-36 Seabed Depth: 5,249' RKB CSG-28 CSG-36 5,000 t. CSG-36 CSG-28 CSG-28 CSG-22 CURRENT PROGRESS > 28" Casing String Set & Cemented In Place > Depth Reached: 8,762' - 12:00 May 7th > 22" Casing Set & Cemented - 12:00 May 8th > BOP Maintenance & Testing - May 9th > Running the BOP - May 14th 1CSG-18 CSG-22 CSG-22 CSG-16 CS-18 CSG-18 ALNR-13 5/8 CSG-16 LNR-13 5/8 LNR-13 5/8 bp LNR 117/8 LNR-117/8 LNR-9 5/8 Planned Intersection Depth: +18,000' MD-RKB OVERVIEW BP intends to drill two wells designed to intersect the CSG 7 RESERVOIR original wellbore above the oil reservoir. This will allow heavy fluid to be pumped into the well which will stop the 15,000 f. flow of oil from the reservoir. Cement will then be pumped RELIEF WELLS & down to permanently seal the well. SUBSEA CONTAINMENT DISCOVERER ENTERPRISE DRILL SHIP RELIEF WELL #2 RELIEF WELL #1 Original MC 252 #1 Subsea Containment Development Driller II Development Driller III Spudded May 2nd at 15:27 hrs CSG-36 Seabed Depth: 5,249' RKB CSG-28 CSG-36 5,000 t. CSG-36 CSG-28 CSG-28 CSG-22 CURRENT PROGRESS > 28" Casing String Set & Cemented In Place > Depth Reached: 8,762' - 12:00 May 7th > 22" Casing Set & Cemented - 12:00 May 8th > BOP Maintenance & Testing - May 9th > Running the BOP - May 14th 1CSG-18 CSG-22 CSG-22 CSG-16 CS-18 CSG-18 ALNR-13 5/8 CSG-16 LNR-13 5/8 LNR-13 5/8 bp LNR 117/8 LNR-117/8 LNR-9 5/8 Planned Intersection Depth: +18,000' MD-RKB OVERVIEW BP intends to drill two wells designed to intersect the CSG 7 RESERVOIR original wellbore above the oil reservoir. This will allow heavy fluid to be pumped into the well which will stop the 15,000 f. flow of oil from the reservoir. Cement will then be pumped RELIEF WELLS & down to permanently seal the well. SUBSEA CONTAINMENT DISCOVERER ENTERPRISE DRILL SHIP RELIEF WELL #2 RELIEF WELL #1 Original MC 252 #1 Subsea Containment Development Driller II Development Driller III Spudded May 2nd at 15:27 hrs CSG-36 Seabed Depth: 5,249' RKB CSG-28 CSG-36 5,000 t. CSG-36 CSG-28 CSG-28 CSG-22 CURRENT PROGRESS > 28" Casing String Set & Cemented In Place > Depth Reached: 8,762' - 12:00 May 7th > 22" Casing Set & Cemented - 12:00 May 8th > BOP Maintenance & Testing - May 9th > Running the BOP - May 14th 1CSG-18 CSG-22 CSG-22 CSG-16 CS-18 CSG-18 ALNR-13 5/8 CSG-16 LNR-13 5/8 LNR-13 5/8 bp LNR 117/8 LNR-117/8 LNR-9 5/8 Planned Intersection Depth: +18,000' MD-RKB OVERVIEW BP intends to drill two wells designed to intersect the CSG 7 RESERVOIR original wellbore above the oil reservoir. This will allow heavy fluid to be pumped into the well which will stop the 15,000 f. flow of oil from the reservoir. Cement will then be pumped RELIEF WELLS & down to permanently seal the well. SUBSEA CONTAINMENT DISCOVERER ENTERPRISE DRILL SHIP RELIEF WELL #2 RELIEF WELL #1 Original MC 252 #1 Subsea Containment Development Driller II Development Driller III Spudded May 2nd at 15:27 hrs CSG-36 Seabed Depth: 5,249' RKB CSG-28 CSG-36 5,000 t. CSG-36 CSG-28 CSG-28 CSG-22 CURRENT PROGRESS > 28" Casing String Set & Cemented In Place > Depth Reached: 8,762' - 12:00 May 7th > 22" Casing Set & Cemented - 12:00 May 8th > BOP Maintenance & Testing - May 9th > Running the BOP - May 14th 1CSG-18 CSG-22 CSG-22 CSG-16 CS-18 CSG-18 ALNR-13 5/8 CSG-16 LNR-13 5/8 LNR-13 5/8 bp LNR 117/8 LNR-117/8 LNR-9 5/8 Planned Intersection Depth: +18,000' MD-RKB OVERVIEW BP intends to drill two wells designed to intersect the CSG 7 RESERVOIR original wellbore above the oil reservoir. This will allow heavy fluid to be pumped into the well which will stop the 15,000 f. flow of oil from the reservoir. Cement will then be pumped RELIEF WELLS & down to permanently seal the well. SUBSEA CONTAINMENT