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E1Paso/ColoradoInterstateGas公司的负责人和执行经理决定使用X80高强度低合金管材铺设一条长380mil、直径36in的高强度和高压天然气输送管线,其建设费用计划为4·25亿美元,从设计到完工耗时6年。该管线的建设任务由两家承包商负责,投入三套施工设备,建设启动期为4个月。为了成功铺设这条管线,考虑到许多关键因素,包括X80管材的冶金设计、弯制偏差、可焊性问题、焊接工艺评定、韧性试验、NDT技术、焊工和焊接检验员培训计划以及水压试验。为该项目生产和交付了18·1×104t以上的管材。它们由两家钢管生产厂制造——一家在加拿大(IPSCO,完成全部订单的80%),另一家在美国(Napa)。除了长380mil、口径36in的干线钢管外,还制造了长4mil、直径30in的X80钢管,安装在堪萨斯的Greensburg加压站附近的支线。该项目起点为怀俄明的Cheyenne加压站沿着东南方向穿过科罗拉多和堪萨斯西部,终点站在堪萨斯的Greenburg加压站。该管线有32000个压缩的HP,每日可向市场输送天然气达17×108ft3。文中解释了使该管线能够成功地在预算范围内提前建成的关键材料、焊接、NDT和与X80高强度低合金管线管相关的敷设等若干问题。
The head and executive manager of E1Paso / ColoradoInterstateGas decided to use X80 high-strength low-alloy pipe to lay a 380mil high-strength and high-pressure natural gas pipeline of 36in diameter with a planned construction cost of 425 million U.S. dollars, from design to completion When 6 years. The construction of the pipeline is under the responsibility of two contractors, putting three sets of construction equipment into operation, with a construction start-up period of 4 months. In order to successfully lay the pipeline, many key factors are considered, including the metallurgical design of the X80 pipe, bending deviation, solderability issues, welding procedure qualification, ductility testing, NDT techniques, welder and welding inspector training programs and hydrostatic testing . The project produced and delivered more than 18 · 1 × 104t of pipe. They are made by two pipe producers - one in Canada (IPSCO, 80% of all orders made) and one in the United States (Napa). In addition to the 380-mils, 36-in. Mainline pipe, a 4-mil, 30-in-diameter X80 pipe was made and installed at the feeder near the Greensburg pressurization station in Kansas. The project starts at Wyoming Cheyenne pressurization station southeast through Colorado and western Kansas and ends at Greenburg Pressing Station in Kansas. The pipeline has 32,000 compressed HPs that can deliver natural gas to the market for 17x108 ft3 daily. The paper explains several issues such as key materials, welding, NDT, and laying related to X80 high-strength low-alloy pipelines that enable the pipeline to be successfully completed within budget.