Plan Coordinator, FO, Plans Section (MS 5231)
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UNITED STATES GOVERNMENT October 14, 2020 MEMORANDUM To: Public Information (MS 5030) From: Plan Coordinator, FO, Plans Section (MS 5231) Subject: Public Information copy of plan Control # - S-08025 Type - Supplemental Exploration Plan Lease(s) - OCS-G33335 Block - 642 Keathley Canyon Area OCS-G33341 Block - 686 Keathley Canyon Area OCS-G33918 Block - 687 Keathley Canyon Area Operator - LLOG Exploration Offshore, L.L.C. Description - Subsea Wells D, ALT D, E, and ALT E Rig Type - DP Semisubmersible and Drillship Attached is a copy of the subject plan. It has been deemed submitted as of this date and is under review for approval. Chiquita Hill Plan Coordinator Site Type/Name Botm Lse/Area/Blk Surface Location Surf Lse/Area/Blk WELL/ALT D G33335/KC/642 888 FNL, 1186 FEL G33341/KC/686 WELL/ALT E G33918/KC/687 990 FNL, 1193 FEL G33341/KC/686 WELL/D G33335/KC/642 938 FNL, 1192 FEL G33341/KC/686 WELL/E G33918/KC/687 940 FNL, 1190 FEL G33341/KC/686 LLOG EXPLORATION OFFSHORE, L.L.C. 1001 Ochsner Boulevard, Suite 100 Covington, Louisiana 70433 SUPPLEMENTAL PLAN OF EXPLORATION OCS-G-33341 / OCS-G-33918 / OCS-G-33335 LEASES KEATHLEY CANYON BLOCK 686 / 687 / 642 PUBLIC INFORMATION COPY Prepared By: Sue Sachitana Regulatory Specialist LLOG Exploration Offshore, L.L.C. 985-801-4300 – Office 985-801-4716 – Direct [email protected] Date: September 16, 2020 Supplemental Exploration Plan Plan S-8025 Keathley Canyon Block 686 / 687 / 642 OCS-G-33341 / OCS-G-33918 / OCS – G- 33335 Leases AMENDED COPY RECORD OF CHANGES DATE SECTION-PAGE BRIEF SYMOPSIS 9/23/2020 Appendix E Paragraph G corrected area and block from Mississippi Canyon Block 505 to Keathley Canyon Block 686. LLOG EXPLORATION OFFSHORE, L.L.C. INITIAL EXPLORATION PLAN OCS-G 33341 / OCS-G-33918 / OCS-G-33335 LEASES KEATHLEY CANYON 686 / 687 / 642 APPENDIX A Plan Contents APPENDIX B General Information APPENDIX C Geological, Geophysical Information APPENDIX D H2S Information APPENDIX E Biological, Physical and Socioeconomic Information APPENDIX F Waste and Discharge Information APPENDIX G Air Emissions Information APPENDIX H Oil Spill Information APPENDIX I Environmental Monitoring Information APPENDIX J Lease Stipulation Information APPENDIX K Environmental Mitigation Measures Information APPENDIX L Related Facilities and Operations Information APPENDIX M Support Vessels and Aircraft Information APPENDIX N Onshore Support Facilities Information APPENDIX O Coastal Zone Management Act (CZMA) Information APPENDIX P Environmental Impact Analysis APPENDIX Q Administrative Information Supplemental Exploration Plan OCS-G-33341 / OCS-G-33918 / OCS-G-33335 Leases Keathley Canyon Block 686 / 687 / 642 APPENDIX A PLAN CONTENTS (30 CFR Part 550.211 and 550.241) A. Plan information In accordance with 30 CFR 550.211 and 550.241(a), NTL No. 2008-G04 and NTL 2015-N01, LLOG Exploration Offshore, LLC (LLOG) proposes the drilling, completion, testing and installation of subsea wellhead and/or manifold for two (2) proposed surface location (D and E) on Lease OCS-G-33341, Keathley Canyon Block 686 with one well bottom holing in Keathley Canyon 687, OCS-G-33918 Lease and the other well bottom holing in Keathley Canyon 642, OCS-G-33335 Lease and proposes two mirrored wells (Alt D and Alt E) to be drilled only in the event of a failure . The operations proposed will not utilize pile-driving, nor is Operator proposing any new pipelines expected to make landfall. Included as Attachment A-1 is Form BOEM 137 “OCS Plan Information Form”, which provides for the drilling, sub-sea completion and testing of all well locations. B. Location Attachment A-2 – Well Location Plat Attachment A-3 – Bathymetry Map – Seafloor disturbance area C. Safety & Pollution Features LLOG will utilize a Drillship or a DP semi-submersible drilling rig for the proposed operations. A description of the drilling units is included on the OCS Plans Information Form. Rig specifications will be made part of the Application for Permit to Drill. Safety features on the drilling unit will include well control, pollution prevention, and blowout prevention equipment as described in Title 30 CFR Part 250, Subparts C, D, E and G; and further clarified by BOEM’s Notices to Lessees, and currently policy making invoked by BOEM, EPA and USCG. Appropriate life rafts, life jackets, ring buoys, etc., will be maintained on the facility at all times. Pollution prevention measures include installation of curbs, gutters, drip pans, and drains on the drilling deck areas to collect all contaminants and debris. Supplemental Exploration Plan OCS-G-33341 / OCS-G-33918 / OCS-G-33335 Leases Keathley Canyon Block 686 / 687 / 642 D. Storage Tanks and Vessels The following table details the storage tanks and/or production vessels that will store oil (capacity greater than 25 bbls. or more) and be used to support the proposed activities (MODU, barges, platforms, etc.): Type of Storage Type of Tank Number Total Fluid Gravity Tank Facility Capacity of tanks Capacity (API) (bbls) (bbls) Fuel Oil Storage Drillship 16,564 1 16,564 No. 2 Diesel - 43 Tank Fuel Oil Storage 16,685.5 1 16,685.5 No. 2 Diesel - 43 Tank Fuel Oil 836.6 2 1,673.2 No. 2 Diesel - 43 Settleing Tank Fuel Oil Day 836.6 2 1,673.2 No. 2 Diesel - 43 Tanks Type of Storage Type of Tank Number Total Fluid Gravity Tank Facility Capacity of tanks Capacity (API) (bbls) (bbls) Fuel Oil (Marine DP Semi- 164 1 164 30 Diesel) Submersible Fuel Oil Day 367 2 734 30 Emergency 31 1 31 30 Generator Forward Hull 4634 2 9268 30 Fuel Oil Lower Aft Hull 3462 2 6924 30 Fuel Oil Lube Oil 117 1 132.1 45 Services 10.5 1 4.6 1 Dirty Lube Oil 38 1 66 45 28 1 Dirty Bilge 190 4 760 10 E. Pollution Prevention Measures: Not applicable. The State of Florida is not an affected State by the proposed activities in this plan. F. Additional measures: LLOG does not propose any additional safety, pollution prevention, or early detection measures, beyond those required in 30 CFR 250 and per December 13, 2010 – Guidance for Deepwater Drillers to Comply with Strengthened Safety and Environmental Standards. Supplemental Exploration Plan OCS-G-33341 / OCS-G-33918 / OCS-G-33335 Leases Keathley Canyon Block 686 / 687 / 642 OCS Plan Information Form Attachment A-1 (Public Information) Supplemental Exploration Plan OCS-G-33341 / OCS-G-33918 / OCS-G-33335 Leases Keathley Canyon Block 686 / 687 / 642 U.S. Department of the Interior OMB Control Number: 1010-0151 Bureau of Ocean Energy Management OMB Approval Expires: / / OCS PLAN INFORMATION FORM General Information Project and Worst Case Discharge (WCD) Information Description of Proposed Activities and Tentative Schedule (Mark all that apply) Proposed Activity Start Date End Date No. of Days Description of Drilling Rig Description of Structure Description of Lease Term Pipelines From (Facility/Area/Block) To (Facility/Area/Block) Diameter (Inches) Length (Feet) Form BOEM- 0137 ( - Supersedes all previous editions of this form which may not be used.) Page 1 of 4 Schedule of Activities COMPL COMPL NUMBER WELL / EVENT SPUD TD START FINISH OF DAYS DESCRIPTION KC 687-1 (KC 686 Loc E) 5/1/2021 7/15/2021 75 DRILL KC 642-2 (KC 686 Loc D) 7/15/2021 9/23/2021 70 DRILL KC 687-1 (KC 686 Loc E) 3/1/2022 4/30/2022 60 COMPLETION KC 642-2 (KC 686 Loc D) 4/30/2022 6/29/2022 60 COMPLETION DAYS PER YEAR 2021 145 2022 120 OCS PLAN INFORMATION FORM (CONTINUED) Include one copy of this page for each proposed well/structure Proposed Well/Structure Location WCD info Surface Location Bottom-Hole Location (For Wells) Completion (For multiple completions, enter separate lines) Lease No. Area Name Block No. Blockline Departures (in feet) Lambert X- Y coordinates Latitude/ Longitude Anchor Locations for Drilling Rig or Construction Barge (If anchor radius supplied above, not necessary) Anchor Name Area Block X Coordinate Y Coordinate Length of Anchor Chain on Seafloor or No. Form BOEM- 0137 (March 2015- Supersedes all previous editions of this form which may not be used.) Page of 4 OCS PLAN INFORMATION FORM (CONTINUED) Include one copy of this page for each proposed well/structure Proposed Well/Structure Location WCD info Surface Location Bottom-Hole Location (For Wells) Completion (For multiple completions, enter separate lines) Lease No. Area Name Block No. Blockline Departures (in feet) Lambert X- Y coordinates Latitude/ Longitude Anchor Locations for Drilling Rig or Construction Barge (If anchor radius supplied above, not necessary) Anchor Name Area Block X Coordinate Y Coordinate Length of Anchor Chain on Seafloor or No. Form BOEM- 0137 (March 2015- Supersedes all previous editions of this form which may not be used.) Page of 4 OCS PLAN INFORMATION FORM (CONTINUED) Include one copy of this page for each proposed well/structure Proposed Well/Structure Location WCD info Surface Location Bottom-Hole Location (For Wells) Completion (For multiple completions, enter separate lines) Lease No. Area Name Block No. Blockline Departures (in feet) Lambert X- Y coordinates Latitude/ Longitude Anchor Locations for Drilling Rig or Construction Barge (If anchor radius supplied above, not necessary) Anchor Name Area Block X Coordinate Y Coordinate Length of Anchor Chain on Seafloor or No. Form BOEM- 0137 (March 2015- Supersedes all previous editions of this form which may not be used.) Page of 4 OCS PLAN INFORMATION FORM (CONTINUED) Include one copy of this page for each proposed well/structure Proposed Well/Structure Location WCD info Surface Location Bottom-Hole Location (For Wells) Completion (For multiple completions, enter separate lines) Lease No. Area Name Block No. Blockline Departures (in feet) Lambert X- Y coordinates Latitude/ Longitude Anchor Locations for Drilling Rig or Construction Barge (If anchor radius supplied above, not necessary) Anchor Name Area Block X Coordinate Y Coordinate Length of Anchor Chain on Seafloor or No.