SY/T 0449-1997 Specification for the construction and acceptance of steel atmospheric pressure vessels for oil and gas fieldsSY/T0449-1997 Standard download decompression password: www.bzxz.net

Petroleum and Natural Gas Industry Standard of the People's Republic of China Specification for construction and acceptance of steel normal pressure vessels used in oil and gas fieldSY/ T 0449-97Editor-in-chief: Dagang Oilfield Group Construction Engineering CompanyApproving department: China National Petroleum CorporationPetroleum Industry Press: Beijing, 1998Material and cuttingMachining and formingNon-destructive testing of weldsPressure test (leakage) of vesselsGeneral requirementsAlignment and levelingAnchor bolts, washers and grouting6 Delivery documentsExplanation of terms and expressions used in the standardAppendixExplanation of clauses of the specification for construction and acceptance of steel normal pressure vessels used in oil and gas fields |tt||China National Petroleum Corporation Document
[971 CNPC Technical Supervision No. 698
Notice on the approval and release of 35 oil and gas industry standards including "Technical Standard for Fusion Bonded Epoxy Powder External Coating of Steel Pipelines"
To all relevant units:
"Technical Standard for Fusion Bonded Epoxy Powder External Coating of Steel Pipelines" and other 35 oil and gas industry standards (draft) have been reviewed and approved and are now approved as oil and gas industry standards and are released. The numbers and names of the industry standards are as follows: Serial No.
SY/T 0315-97
SY/T 031697
SY/T 031797
SY/T 0407-97
Technical Standard for External Coating of Fusion Bonded Epoxy Powder for Steel Pipe
Recommended Practice for Field Inspection of New Line Pipe
Building Code for Saline Soil Areas
Specification for Surface Preparation of Steel Materials Before Painting
(Replaces SYJ4007-86)
SYT 041997
SY/T 042097
SY 0422—97
SY /T 0442-97
SYT 0448-97
SY/T 044997
SYT 0450-97
SY 0466—97
SY/F 0515
SY / F 50201997
SY /T $2121997
Specification for the manufacture, installation and acceptance of water jacket heating furnaces for oil fields (replacing SYJ4019
Technical standard for petroleum asphalt anticorrosion layer of buried steel pipelines (replacing SYJ4020-88
SYJ 8—84)
Specification for the construction and acceptance of oil field gathering and transportation pipelines
(replacing SYJ402288.SYJ4009
86, SY 406193)
Technical standard for internal coating of epoxy powder for steel pipeline (replaces SYJ404289)
Construction and acceptance specification for steel pressure vessels for oil and gas processing in oil fields (replaces SYJ4048)
Construction and acceptance specification for steel atmospheric pressure vessels for oil and gas fields (replaces SYJ4049-91)
Seismic design specification for buried steel pipelines for oil (gas) (replaces SYJ4050-91)
Construction and acceptance specification for natural gas gathering and transportation pipelines (replaces SY 4066-93, SY4082-95)
Oil and gas separator specification (replaces SY7515)
Conical thread for drilling pumps (replaces SY 502080, SY 502180)
Quality classification of beam pumping units (replace
SY 521287)
2—1997
Erxian earthquake exploration data external technology
SY 7T 62951997
SY2T 7507-1997
SY T 7508-1997
Reliability prediction method for oil drilling equipment
Determination of water content in natural gas, electrolysis
method (replace
SY 7507-87)
Determination of total sulfur in liquefied petroleum gas in oil and gas fields
Determination of total sulfur in liquefied petroleum gas, oxidation microcoulometry (replace
SY 7508—87)
The above standards shall be implemented from June 1, 1998. China National Petroleum Corporation
December 28, 1997
This specification is edited by Dagang Oilfield Group Construction Engineering Company in accordance with the requirements of Document No. 42 of 1997 Zhongyou Technology Supervision, and is jointly compiled with China National Petroleum Corporation Engineering Technology Research Institute and other units. During the compilation process, the standard compilation team conducted a relatively serious investigation and research, summarized the practical experience of various oil users over the years, and referred to relevant domestic and foreign standards and specifications. The main technical contents were repeatedly discussed, studied and revised, and finally finalized after review.
The main contents of this standard are: general principles, symbols, materials, manufacturing, installation, etc. In order to improve the quality of the standard, please pay attention to summarizing experience and accumulating information in the process of implementing this standard, and send relevant opinions and suggestions to Tianjin Dagang District Shanggulin Dagang Oilfield Construction Engineering Company (zip code: 300272) at any time for reference in future revisions.
This standard was drafted by: Dagang Oilfield Group Construction Engineering Company and China National Petroleum Corporation Engineering Technology Research Institute.
The main drafters of this standard are Wang Yaoqing, Zhao Lianqing, Chen Zhiying and Zhang Hongyuan.
1.0.1 Atmospheric pressure vessels are special equipment widely used in oilfield production. In order to have unified technical standards for their manufacture and installation and ensure safe operation, this specification is specially formulated. 1.0.2 This specification is applicable to the manufacture and installation of steel welded atmospheric pressure vessels (hereinafter referred to as vessels) that meet the following requirements in surface construction projects of oil and gas fields: Inspection and acceptance 1 Cylindrical vertical vessels, cylindrical or elliptical horizontal vessels, with a volume not exceeding 100m3, a design pressure of 0.1MPa, and greater than or equal to -0.002MPa.
2 Water tanks, oil tanks, pickling tanks, electrolytic cells, chutes, funnels, etc. welded with carbon steel, ordinary resistance alloy steel, and stainless acid-resistant steel, with a volume not exceeding 40m3 and a design pressure not exceeding 0.05MPae
3 The design temperature of the vessel is higher than -20℃ and not greater than 350℃. 1.0.3 This specification is not applicable to containers heated by direct flames, containers that are frequently transported, containers that are subject to radiation, and containers buried underground or semi-underground. 1.04 In addition to complying with the provisions of this specification, the production of containers shall also comply with the requirements of the design drawings.
1.0.5 In any of the following cases, the welding of containers must be performed by welders holding the welder qualification certificate of the corresponding category issued in advance by the labor department: 1. Containers with a design temperature lower than -10℃ or higher than 250℃. 2. Containers containing flammable and explosive media or with moderate toxic hazards. 3. Containers with a product of design pressure and nominal volume greater than or equal to 0.5MPa·m or a volume V greater than 10m. 4. Containers with a nominal shell thickness greater than or equal to 8mrm. 1.0.6 The detection instruments used in the production and installation of containers shall comply with the regulations of the national metrology department. And they shall be qualified after verification.
1.07 The production of the container's ladder, counter platform, bracket, railing, reinforcement ring and accessories shall comply with the provisions of the current "Steel Structure Engineering Construction and Acceptance Code" GB50205.
1.0.8 Safety technology and labor protection during construction shall be implemented in accordance with the relevant national regulations.
1.0.9 The construction and acceptance of steel atmospheric pressure vessels for oil and gas fields shall comply with the provisions of the relevant national mandatory standards in addition to complying with this specification. b
Misalignment or width of the joint
Inclination of the end face of the simple section
Surface local flatness
Negative deviation of steel plate or steel pipe thickness
Outer diameter of container or flange
Inner diameter of container
Weld angularity
Butt weld reinforcement
Maximum and minimum diameter differencebzxz.net
Oil level height
Straight edge height
Diagonal length
Nominal thickness of steel plate
Maximum diameter
Minimum diameter
Allowable deviation of straightness
Allowable deviation of full height
Allowable deviation of height of curved surface
Allowable deviation of height of straight edge
Allowable deviation of diameter
Flatness difference
Allowable deviation of thickness of angle steel and fan steel
Stiffness straightness
Allowable deviation of width
3 Materials
3.0.1 Steel materials used for containers: shall comply with the requirements of the drawings, and their welding components must be steel materials with good welding performance.
3.02 The materials used for containers and accessories shall have quality certificates. When there is doubt about the quality certificate, the materials shall be re-tested and can only be used after they are qualified.
3.0.3 Welding materials (welding rods, welding wires and fluxes) shall have product certificates. The quality certificate of welding rods shall include the chemical composition and mechanical properties of the deposited metal. When there is doubt about the quality certificate, the welding materials should be re-tested. 3.0.4 The steel plate must be inspected visually. There should be no delamination, bubbles, scars, cracks, cracks, folds, slag inclusions and pressed iron oxide scale on the surface. The sum of the surface defects, rust depth and actual deviation of the steel plate (measured at any point) shall not exceed the provisions of Table 3.04.
3.0.4 Allowable deviation of nominal thickness of steel plate (mm) Plate nominal thickness
4.5 ~ 5.5
Allowable deviation
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