30 CFR 254.47 - Determining the volume of oil of your worst case discharge scenario.

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§ 254.47 Determining the volume of oil of your worst case discharge scenario.
You must calculate the volume of oil of your worst case discharge scenario as follows:
(a) For an oil production platform facility, the size of your worst case discharge scenario is the sum of the following:
(1) The maximum capacity of all oil storage tanks and flow lines on the facility. Flow line volume may be estimated; and
(2) The volume of oil calculated to leak from a break in any pipelines connected to the facility considering shutdown time, the effect of hydrostatic pressure, gravity, frictional wall forces and other factors; and
(3) The daily production volume from an uncontrolled blowout of the highest capacity well associated with the facility. In determining the daily discharge rate, you must consider reservoir characteristics, casing/production tubing sizes, and historical production and reservoir pressure data. Your scenario must discuss how to respond to this well flowing for 30 days as required by § 254.26(d)(1).
(b) For exploratory or development drilling operations, the size of your worst case discharge scenario is the daily volume possible from an uncontrolled blowout. In determining the daily discharge rate, you must consider any known reservoir characteristics. If reservoir characteristics are unknown, you must consider the characteristics of any analog reservoirs from the area and give an explanation for the selection of the reservoir(s) used. Your scenario must discuss how to respond to this well flowing for 30 days as required by § 254.26(d)(1).
(c) For a pipeline facility, the size of your worst case discharge scenario is the volume possible from a pipeline break. You must calculate this volume as follows:
(1) Add the pipeline system leak detection time to the shutdown response time.
(2) Multiply the time calculated in paragraph (c)(1) of this section by the highest measured oil flow rate over the preceding 12-month period. For new pipelines, you should use the predicted oil flow rate in the calculation.
(3) Add to the volume calculated in paragraph (c)(2) of this section the total volume of oil that would leak from the pipeline after it is shut in. Calculate this volume by taking into account the effects of hydrostatic pressure, gravity, frictional wall forces, length of pipeline segment, tie-ins with other pipelines, and other factors.
(d) If your facility which stores, handles, transfers, processes, or transports oil does not fall into the categories listed in paragraph (a), (b), or (c) of this section, contact the Regional Supervisor for instructions on the calculation of the volume of your worst case discharge scenario.

Title 30 published on 2014-07-01.

No entries appear in the Federal Register after this date, for 30 CFR Part 254.

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United States Code
U.S. Code: Title 33 - NAVIGATION AND NAVIGABLE WATERS

Title 30 published on 2014-07-01

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 30 CFR Part 254 after this date.

  • 2015-04-20; vol. 80 # 75 - Monday, April 20, 2015
    1. 80 FR 21670 - Oil and Gas and Sulphur Operations on the Outer Continental Shelf—Requirements for Exploratory Drilling on the Arctic Outer Continental Shelf
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      DEPARTMENT OF THE INTERIOR, Bureau of Ocean Energy Management, Bureau of Safety and Environmental Enforcement
      Extension of comment period for Notice of Proposed Rulemaking
      The comment period for the Notice of Proposed Rulemaking published on February 24, 2015, (80 FR 9916) has been extended. Written comments must be received by the extended due date of May 27, 2015. BOEM and BSEE may not fully consider comments received after this date. ADDRESSES: You may submit comments on the proposed rulemaking by any of the following methods. Please use the Regulation Identifier Number (RIN) 1082-AA00 as an identifier in your message. For comments specifically related to the draft Environmental Assessment conducted under the National Environmental Policy Act of 1969 (NEPA), please refer to NEPA in the heading of your message. • Federal eRulemaking Portal: http://www.regulations.gov. In the entry entitled “Enter Keyword or ID”, enter BSEE-2013-0011 then click search. Follow the instructions to submit public comments and view supporting and related materials available for this rulemaking. BOEM and BSEE may post all submitted comments in their entirety. • Mail or hand-carry comments to the Department of the Interior (DOI); Bureau of Safety and Environmental Enforcement; Attention: Regulations and Standards Branch; 45600 Woodland Road, Sterling, Virginia 20166. Please reference “Oil and Gas and Sulphur Operations on the Outer Continental Shelf—Requirements for Exploratory Drilling on the Arctic Outer Continental Shelf, 1082-AA00” in your comments and include your name and return address. Please note that this address for BSEE is new; however, any comments already submitted to BSEE's former address (381 Elden Street, Herndon, Virginia 20181) do not need to be resubmitted to the new address. • Public Availability of Comments—Before including your address, phone number, email address, or other personal identifying information in your comment, you should be aware that your entire comment—including your personal identifying information—may be made publicly available at any time. While you can ask us in your comment to withhold your personal identifying information from public review, we cannot guarantee that we will be able to do so.
      30 CFR Parts 250 and 254