30 CFR 250.1609 - Pressure testing of casing.

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§ 250.1609 Pressure testing of casing.
Link to an amendment published at 81 FR 36151, June 6, 2016.

(a) Prior to drilling the plug after cementing, all casing strings, except the drive or structural casing, shall be pressure tested. The conductor casing shall be tested to at least 200 psi. All casing strings below the conductor casing shall be tested to 500 psi or 0.22 psi/ft, whichever is greater. (When oil or gas is not present in the cap rock, the production liner need not be cemented in place; thus, it would not be subject to pressure testing.) If the pressure declines more than 10 percent in 30 minutes or if there is another indication of a leak, the casing shall be recemented, repaired, or an additional casing string run and the casing tested again. The above procedures shall be repeated until a satisfactory test is obtained. The time, conditions of testing, and results of all casing pressure tests shall be recorded in the driller's report.

(b) After cementing any string of casing other than structural, drilling shall not be resumed until there has been a timelapse of at least 8 hours under pressure for the conductor casing string or 12 hours under pressure for all other casing strings. Cement is considered under pressure if one or more float valves are shown to be holding the cement in place or when other means of holding pressure are used.

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United States Code
U.S. Code: Title 31 - MONEY AND FINANCE
U.S. Code: Title 43 - PUBLIC LANDS

Title 30 published on 2015-07-01

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 30 CFR Part 250 after this date.

  • 2015-12-04; vol. 80 # 233 - Friday, December 4, 2015
    1. 80 FR 75806 - Oil and Gas and Sulphur Operations in the Outer Continental Shelf—Decommissioning Costs
      GPO FDSys XML | Text
      DEPARTMENT OF THE INTERIOR, Bureau of Safety and Environmental Enforcement
      Final rule.
      This final rule becomes effective on January 4, 2016.
      30 CFR Part 250