6 Colo. Code Regs. § 1007-1-16.12
Current through Register Vol. 47, No. 11, June 10, 2024
Section 6 CCR 1007-1-16.12 - Design, performance, and certification criteria for sealed sources used in downhole operations16.12.1 A licensee may use a sealed source for use in well logging applications if: 16.12.1.1 The sealed source is doubly encapsulated;16.12.1.2 The sealed source contains radioactive material whose chemical and physical forms are as insoluble and non-dispersible as practical; and16.12.1.3 Meets the requirements of 16.12.3.1, 16.12.3.2, or 16.12.3.3, as appropriate.16.12.3 Each sealed source, except energy compensation sources (ECS) and those containing radioactive material in gaseous form, used in downhole operations, shall be certified by the manufacturer, or other testing organization acceptable to the Department, as meeting the sealed source performance requirements for oil well-logging: 16.12.3.1 For a sealed source manufactured on or before July 14, 1989, a licensee may use the sealed source, for use in well logging applications, if it meets the requirements of United States Of America Standards Institute (USASI) N5.10-1968, "Classification of Sealed Radioactive Sources" (1968), or the requirements in 16.12.3.2 or 16.12.3.3.16.12.3.2 For a sealed source manufactured after July 14, 1989, a licensee may use the sealed source, for use in well logging applications, if it meets the oil well logging requirements of American National Standards Institute / Health Physics Society (ANSI/HPS) N43.6-1997, "Sealed Radioactive Sources Classification" (November 1997).16.12.3.3 For a sealed source manufactured after July 14, 1989, a licensee may use the sealed source, for use in well logging applications, if the sealed source's prototype has been tested and found to maintain its integrity after each of the following tests: (1) Temperature test. The test source must be held at minus 40°C for 20 minutes, 600°C for 1 hour, and then be subject to a thermal shock test with a temperature drop from 600°C to 20°C within 15 seconds.(2) Impact test. A 5-kg steel hammer, 2.5 cm in diameter, must be dropped from a height of 1 m onto the test source.(3) Vibration test. The test source must be subject to a vibration from 25 Hz to 500 Hz at 5 g amplitude for 30 minutes.(4) Puncture test. A 1-gram hammer and pin, 0.3 cm pin diameter, must be dropped from a height of 1 m onto the test source.(5) Pressure test. The test source must be subject to an external pressure of 1.695 x 107 pascal [24,600 pounds per square inch absolute].16.12.4 Certification documents shall be maintained for inspection by the Department for a period of 3 years after source disposal. If the source is abandoned downhole, the certification documents shall be maintained until the Department authorizes disposition.16.12.5 The licensee may use an energy compensation source (ECS) which is contained within a logging tool, or other tool components, only if the ECS contains quantities of licensed material not exceeding 3.7 MBq (100 microcuries). 16.12.5.1 For well logging applications with a surface casing for protecting fresh water aquifers, use of the ECS is only subject to the requirements of 16.9, 16.10, and 16.11.16.12.5.2 For well logging applications without a surface casing for protecting fresh water aquifers, use of the ECS is only subject to the requirements of 16.4, 16.9, 16.10, 16.11, and 16.25.1 through 16.25.5.16.12.6 The requirements in 16.12.1, 16.12.3.1, 16.12.3.2, and 16.12.3.3 do not apply to sealed sources that contain radioactive material in gaseous form.16.12.7 The requirements in 16.12.1, 16.12.3.1, 16.12.3.2, and 16.12.3.3 do not apply to Energy Compensation Sources (ECS). ECSs must be registered with the Department under Part 3, Section 3.12.14 or with NRC or an Agreement State.16.12.8 Use of a tritium neutron generator target source, containing quantities not exceeding 1,110 GBq (30 curies) and in a well with a surface casing to protect fresh water aquifers, is subject to the requirements of Part 16 except Sections 16.4, 16.12.1 through 16.12.7, and 16.25.1 through 16.25.5.16.12.9 Use of a tritium neutron generator target source, containing quantities exceeding 1,110 GBq (30 curies) or in a well without a surface casing to protect fresh water aquifers, is subject to the requirements of Part 16 except Section 16.12.1 through 16.12.7.Colorado Register, Vol 37, No. 14. July 25, 2014, effective 8/14/201438 CR 02, January 25, 2015, effective 2/14/201538 CR 05, March 10, 2015, effective 3/30/201538 CR 12, June 25, 2015, effective 7/15/201538 CR 14, July 25, 2015, effective 8/14/201539 CR 02, January 25, 2016, effective 2/14/201639 CR 16, August 25, 2016, effective 9/14/201639 CR 22, November 25, 2016, effective 12/15/201640 CR 11, June 10, 2017, effective 6/30/201740 CR 20, October 25, 2017, effective 11/14/201742 CR 24, December 25, 2019, effective 1/14/202043 CR 14, July 25, 2020, effective 8/14/202043 CR 18, September 25, 2020, effective 10/15/202044 CR 11, June 10, 2021, effective 7/15/202144 CR 14, July 25, 2021, effective 8/14/202145 CR 22, November 25, 2022, effective 12/15/2022