SY 6322-1997 Safety Technical Requirements for Sealed Radioactive Source Library for Oil (Gas) Field Logging SY6322-1997 Standard Download Decompression Password: www.bzxz.net

ICS 13.280
Registration number: 1135-1998bzxz.net
Petroleum and natural gas industry standard of the People's Republic of China SY 63221997
Technical requirements for safety for sealed radioactivosources storehouse used in oil and gas field logging1997-12-31issued
China National Petroleum Corporation
1998-07-01implemented
SY63221997
There has been no specific regulations on the design, use and management of sealed radioactive source stores used in oil and gas field logging. This standard is based on relevant national laws, regulations and standards, combined with the characteristics of the petroleum industry, and is specifically formulated for the design, use and management of sealed radioactive source libraries for oil (gas) field logging. It is also one of the bases for the design, review and acceptance of new, rebuilt and expanded sealed radioactive source libraries for oil (gas) field logging. The content of this standard is mainly the safety technical requirements for the design, use and management of sealed radioactive source libraries for oil (gas) field logging, and does not include the supporting content for the design and construction of radioactive source libraries. This standard was proposed and managed by the Shizhou Industrial Safety Professional Standardization Technical Committee: Drafting units of this standard: Shengli Petroleum Administration Bureau Safety Technology Department, Shengli Petroleum Administration Bureau Well Logging Company. The main drafters of this standard are Qiao Dongliang, Wang Laizhong, Chen Jianshe, Lang Dianshi, Zhao Zhong, Wang Dengwen, and Dong Guoyong. 1 Scope
Petroleum and Natural Gas Industry Standard of the People's Republic of China Technical requirements for safety of sealed radioactive sources storehouses used in oil and gas field logging
SY 63221997
Technological requirements of safety for sealed radioactive sources storehouses used in oil and gas field logging This standard specifies the basic safety technical requirements for the design, use and management of sealed radioactive sources storehouses used in oil and gas field logging. This standard applies to the design and use management of sealed radioactive sources storehouses used in onshore oil and gas field logging. This standard does not apply to the storage of unsealed radioactive sources.
2 Referenced standards
Articles contained in the following standards: Articles that are referenced in this standard constitute the provisions of this standard. When this standard was published, the versions shown were valid. All standards are subject to revision. Parties using this standard should explore the possibility of using the latest versions of the following standards: GB2894—1988 Safety Signs
GB8703—1988 Radiation Protection Regulations
Regulations on Radiation Protection of Radioactive Isotopes and Radiation Devices, Order No. 44 of the State Council of the People's Republic of China, issued on October 24, 1989
Regulations on Health Management of Radiation Workers, Order No. 52 of the Ministry of Health of the People's Republic of China, effective on September 1, 1997
3 Requirements for source library design
3.1 The site selection of sealed radioactive source libraries for oil (gas) field logging shall comply with the requirements of GB8703198846.2.2. 3.2 The radioactive source storage library (hereinafter referred to as the source library) shall be an independent building with a solid wall of not less than 2m on all sides. It shall have a source library duty room, guard room and radioactive monitoring room. Inflammable, explosive and other dangerous items shall not be placed in the library area, and no other buildings shall be set up. 3.3 The distance between the wall and the source repository should be such that when the naked radioactive source with the highest activity is used, the dose equivalent rate at the wall is less than 2.5uSv.h-. Obvious ionizing radiation signs should be set outside the source repository and at the gate of the repository area. The ionizing radiation signs should comply with the provisions of GB2894. 3.4 A radioactive source storage pit (hereinafter referred to as the source pit) should be set up in the source repository. The depth of the source pit should not be less than 1.2m1, and its upper mouth should be 100-150mm higher than the surrounding ground. The source pit cover should have sufficient protective materials to ensure that the dose equivalent rate on the upper surface of the source pit cover is less than 25uSv·h-3.5 For radioactive sources with an activity greater than 37GBq, one should be placed in each source pit. 3.6 There should be good lighting and ventilation conditions in the source repository. 3.7 The source repository storing neutron sources with a capacity of more than 200GBq and gamma sources with a capacity of more than 20GBq should have mechanical lifting and conveying equipment. 3.8 Under the condition that there is no naked source in the source warehouse, the radiation dose equivalent rate at 1m high and 1.5m outside the wall of the source warehouse should be lower than 2.5uSv.h-13.9 The source warehouse should be equipped with anti-theft alarm devices or monitoring devices. 3.10 The acceptance of the source warehouse before commissioning should be carried out in accordance with the provisions of Chapter 2, Article 6 of the "Regulations on Radiation Protection of Radioactive Isotopes and Radiation Devices". 4 Management requirements for the use of source warehouses
4.1 Guards of source warehouses
Approved by China National Petroleum Corporation on December 31, 1997 and implemented on July 1, 1998
Guards should be set up in the source warehouse to work on night shifts.
4.2 Communication of source warehouses
The duty room should have communication facilities: and keep them unobstructed. 4.3 Storage of radioactive sources
SY 63221997
4.3.1 Radioactive sources and waste sources for logging should be placed in the source pit4.3.2 There should be a clear sign in the source warehouse. The clear sign should indicate the number, nuclide, activity, etc. of the radioactive sources in each source pit4.3.3 Each source pit should be equipped with a sign for the radioactive sources stored and the exit and entry of the warehouse, and should be fixed to the radioactive logging team accordingly. 4.3.4 The source warehouse should be equipped with radiation inspection instruments. 4.3.5 The source warehouse should be equipped with double locks, and the keys should be kept separately. 4.4 Exit and entry of radioactive sources
4.4.1 Source warehouse staff should wear labor protection equipment and personal dosimeters when entering the warehouse area. 4.4.2 There should be complete procedures for the exit and entry of radioactive sources. The source must be based on a notification form, and the handover must be subject to inspection and signature procedures. 4.4.3 When a radioactive source leaves the warehouse, an instrument shall be used to check the source. The naked source shall not be observed directly with the eyes. 4.5 Regular inspection of the safety protection performance of the source warehouse 4.5.1. The inspection mainly includes: the determination of the radioactive dose equivalent inside and outside the source warehouse, the protection of the storage tank, the leakage of the radioactive source, etc. 45.2 In principle, the safety protection performance inspection shall be carried out once a year and recorded for filing. If a new source enters the warehouse or the storage tank is replaced, it shall be inspected and recorded for filing in a timely manner.
4.6 Data management of the source warehouse
A radioactive source data ledger shall be established, and its main contents include: newly stored radioactive sources, waste source treatment and radioactive source storage. The data shall be kept by the competent department, the user unit or the custodian unit, and shall be checked once a year and recorded in the ledger. 4.7 Emergency plan
An emergency plan for the protection management of radioactive sources shall be formulated. Health management requirements for source warehouse staff
The health management of source warehouse staff shall be carried out in accordance with the requirements of the "Regulations on Health Management of Radiation Workers".
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