李友成 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!" !!!!!" (ABS API B31G DNV), 完成了对 BZ 34-1 油田管道的剩余强度的评价, 并运用有限元方法进行了

Transcription

1 !!!!!"!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!" 李友成 451!!!!!" : 检测发现 BZ 34-1 油田至友谊号 FPSO 的原油管道存在多处腐蚀深度超过管道壁厚 5% 的缺陷 其中最大腐蚀深度达到了管道壁厚的 85% 需要进行剩余强度和剩余寿命的评价依据四种规范 (ABS API B31G DNV) 完成了对 BZ 34-1 油田管道的剩余强度的评价 并运用有限元方法进行了 验证 对项目中采用的机械管卡修复后效果亦采用有限元方法进行了详细的分析及评价 : 原油管道 腐蚀 剩余强度 评价 修复 doi:1.3969/j.issn BZ 34-1 FPSO ASME B31G DNV RP F11 API 576 5% 85% ASME B31G-29 [1-2] BZ 34-1 API 579 [3] (ASME) ( ) ASME B31G-1984 DNV RP F11 NG-18 DNV 1999 DNV RP F11 ASME B31G -29 (LRFD) API 579 : P corr :

2 38 6 : 57 P corr = γ m 姨 2tS MTS (D - t) 姨 1 Q = 姨 D (d/t)* = (d/t) mean + ε d [d/t] (1 - γ d (d/t)*) 1 - γ d(d/t)* Q 2 姨 γ m 3 # t /mm (1) S MTS /MPa γ d 4 # d /mm D /mm Q ε d [ d/t ] d/t 1 d A 1 l ( l c ) 4 85% ( ) [4] DNV RP F11 3 BZ % ( ABS API B31G A c c t d t 1 BZ34-1 /% /mm /mm 1 /MPa 6.38 (ABS) 1 # (API) 1.78 (B31G) γ d (d/t)* 1 p corr = 8.87 (ABS) P corr 2 # (API) /MPa (B31G) 62 ( 5 # ) 6 # (ABS) 9.23 (API) (B31G) (ABS) (API) (B31G) (ABS) (API) (B31G) (ABS) (API) (B31G) 2 /MPa 8.21 (.1 t) 3.43 (.5 t) 13.6 (.1 t) 6.96 (.5 t) (.1 t) 5.68 (.5 t) (.1 t) 6.23 (.5 t) 32.5 (.1 t) (.5 t) (.1 t) 22.3 (.5 t) : 2 DNV ( ) 2 DNV) 6 1 1/1 ( Pa)

3 (531 MPa) 6 /MPa # 3 # # /m /% /mm : : ANSYS 531 MPa Solid 95 3D MPa 3 # mm 9.5 mm 1 m μ =.3 Ee = Pa E t = Pa /mm MPa 6 4 : 5.1 机械管卡修复方案 BZ 34-1 /MPa /MPa 5 23 mm 16Mn ( JB ) 6 3 : 5 : (1) 7 1 mm 6

4 38 6 : (2) 密封能力的评价 (3) (4) (5) 3.6 MPa 3 min (6) [6] BZ MPa 5.2 机械管卡修复效果评价 管卡主体的强度分析 16Mn (JB ) ANSYS 345 MPa 3.6 MPa Mooney-Rivlin MPa W = C 1 (I 1-3) + C 2 (I 2-3) 8 Mooney-Rivlin : W I 1 I 2 C 1 C 2 [7] σ ε : σ = 坠 W 坠 ε

5 σ P d [8] : ANSYS 9 σ mp d HYPER56 CONTA172 TARGE169 [6] [7] [8] C 1 =.7 C 2 =.35 m m 3 [7] 3.6 MPa 1.8 MPa kn/m 1.8 MPa kn /m 6 DNVRPF11 ~ 64 kn σ 1 64 kn 11 : [1]. ASME B31G-29 [J]. 211(8): [2] ASME B31G-29Manual for Determining the Remaining Strength of Corroded Pipelines[S]. [3] DNV RP F11Corroded Pipelines[S]. [4] Zahiraniza Mustaffa Pieter van Gelder. A Review and Probabilistic Analysis of Limit State Functions of Corroded Pipelines [A]. Proceedings of 2th International Offshore and Polar Engineering Conference[C]. Beijing:ISOPE21. [5] API 579Fitness-For-Service[S]. /MPa z y x [6]. [D]. : 26. [7]. O ANSYS [J]. 2812(28): [8]. [J]. 2912(5): 程管理工作 /(kn/m) : 作者简介 : 李友成 (1962-) 男 天津人 高级工程师 1983 年毕业于天津大学海洋工程专业 现从事海洋石油工

6 .466 m the torsional angle is.4 the maximum bending stress of the pipeline is 58.3 MPa the maximum stress of the stay cable is MPa the maximum stress of the main cable is 311 MPa. Based on these data it is considered that the stresses in all parts of this pipeline bridge are not high and meet design requirements the displacement is the main factor in the design consideration conjugate cables or oblique wind cables for replacing conjugate cables should be set up to control the vertical displacements of the pipeline bridge. Keywords: suspension pipeline bridge wind buffeting frequency domain method analysis (39) Thought of Gas Discharging System Design for Gas Station YAN Wei (Shengli Engineering & Consulting Co. Ltd. Dongying China) Abstract: The most important security measures for a gas station are the emergency shutdown and the emergency discharging. Combining with the gas discharging system design for the gas stations of Sichuan to East Gas Transportation Pipeline this paper discusses the system design thought optimization principle design data and so on from the aspects of gas discharging volume calculation discharging back-pressure determination discharging pipe diameter calculation and discharging flare calculation and points out the problems to be solved further. Keywords: gas station discharging system design discussion (44) Stress Analysis and Installation Design of Pipeline Inside and Outside Mountainous Tunnel of Gas Pipeline Project CHEN Lin (Shengli Engineering & Consulting Co. Ltd. Dongying China) Abstract: Taking one gas pipeline project in the southeast coastal region in China for example the laying and installation methods of pipeline in mountainous tunnel are introduced. The stability of pipeline laying with small span continuous beam plus supports and the stability of pipeline laying with the method of buried inside embankment are analyzed by the stress analysis software CAESAR II. Pipeline push forces under different laying modes and working conditions are calculated. According to the results the pipeline laying method is optimized. Keywords: gas pipeline mountainous tunnel pipeline laying stress analysis (49) Prestress Calculation for Concrete Outer Tank of Full-containment LNG Storage Tank ZHENG Jian -hua (China Huanqiu Contracting & Engineering Co. Beijing 129) LI Jin -guang ZHENG Yan-feng et al. Abstract: It is necessary to impose prestress to the concrete outer tank of a full-containment LNG storage tank in order to ensure the tank safety and low cost. From the viewpoint of engineering design and based on the property of the outer tank of a full-containment LNG storage tank under major loads the key points of calculating prestress of the concrete outer tank are fully analyzed and summarized. Simple and easy methods of calculating prestress of the concrete outer tank are presented. And taking a full-containment LNG storage tank with volume of 16 m 3 as an example the details of calculating prestress are illustrated. Keywords: full-containment LNG storage tank concrete outer tank prestress design (53) Piping Design of Oil Refinery Chemical Building SUN De-sheng (China Petroleum Engineering Dalian Company Dalian China) PENG Jian-guo Abstract: Aimed at the situation of lacking of the design standard for piping design of refinery chemical building at oily wastewater treatment plant and based on the engineering practice this article discusses the thoughts and concrete methods of the piping design which include configuration of dosing pump system selection of pipe material piping of dosing pump system laying way of pipeline and layout design of chemical building etc. These methods are helpful to optimize chemical building piping design. Keywords: refinery plant chemical building layout design piping design ANTICORROSION & INSULATION (56) Evaluation of Residual Strength of Pipeline and Defect Repair LI You-cheng (Offshore Oil Engineering Co. Ltd. Tianjin 451 China) Abstract: It is found by inspections that the oil pipeline between BZ 34-1 Oilfield and Friendship FPSO exists defects with the corroded depth more than 5% wall thickness (the maximum is 85%) at different positions. So evaluating the residual strength and remaining life of the pipeline is necessary. Four codes i.e. ABS API B31G and DNV are applied to realize the residual strength evaluation of the pipeline and the finite element method is used for validation. The repair effect of using pipe clamps is analyzed and evaluated by applying the finite element method. Keywords: crude oil pipeline corrosion residual strength evaluation repair 5