en.Wedoany.com Report, At 23:58 on March 20, as the pressure gauge pointer of the final test package stabilized firmly at the design value, it marked the successful inspection of all 1,268 process pipeline pressure test packages, 22,800 pipelines, and 1.31 million inch-diameter weld joints for the ethylene plant of the 1.2 million tons per year Tarim Ethylene Project Phase II in Xinjiang, China. This achievement represents another major milestone following the successful completion of the no-load test run for the cracked gas compressor unit on March 1, laying a solid foundation with practical action and responsibility for the high-level mechanical completion of the plant.
Party Building Leads to Cohesion, Uniting Efforts to Overcome Challenges
The project Party branch fully leveraged its role as a strong fighting bastion. In accordance with HQC's requirements to "strengthen project execution and build a demonstration benchmark for transformation and upgrading" and the deployment of the company's Party committee, it deeply integrated Party building work with production and construction. A "Pipeline Pressure Testing Assault Team" was established with Zhao Jianhui as the captain, leading the "Party Member Assault Team" to carry out the "Party Member + Management Personnel Linking with Work Teams for 'Pairing' and Co-construction" activity, planting the Party flag at the forefront of construction. During the攻坚 process, Party member cadres took the lead, closely monitoring technical difficulties and safety risks, especially for major systems such as ultra-high-pressure steam/boiler feed water, high/medium/low-pressure steam, cracked gas, and flare systems, implementing "chart-based operations." Braving the biting cold wind and battling in the Gobi desert, a "final battle" for pipeline pressure testing proceeded simultaneously with the single-unit test runs of large plant equipment, ultra-high-pressure steam target shooting, and pipeline purging. Project leaders kept a close eye on the目标, commanding from the front lines. All responsible personnel performed their duties meticulously, from safety control and process confirmation to pump startup and pressurization, and quality control. Every step was严谨 and thorough, overcoming difficulties one by one.
Precise Construction Demonstrates Strength, Innovation-Driven Victory in攻坚
The ethylene plant of the Tarim 1.2 million TPA Phase II project was divided into 1,268 pressure test packages, with the maximum test pressure reaching 32MPa. Faced with the tight schedule, heavy workload, and跨 winter pressure testing任务, the project fully utilized the integrated advantages of HQC. In collaboration with the HQC North Branch consortium, resources were统筹 and融合共享, adhering to the innovative "prefabricated pipeline package" control method. This achieved control over the pipeline construction completion rate at the source, trading space for time and demanding progress from technical management. Simultaneously, "zero-punch-list construction" was comprehensively implemented, achieving no outstanding items throughout the entire process from pipeline alignment and welding, support/hanger installation, to pipe/valve/fitting installation and pressure testing. Focusing on static seals and specified torque, 100% acceptance of flange bolts was achieved, effectively ensuring the safety and quality of pressure testing. Through technology-enabled攻坚 and innovation-driven approaches, the project team achieved outstanding results: completing pressure testing for 700 hydraulic packages before the winter construction period on November 20, 2025; completing pressure testing for 145 pneumatic and visual packages during the winter; and after temperatures rose above 0°C on February 1, 2026, seizing the有利 weather during the Spring Festival period to battle in the Gobi and突破 the 1,000 test package mark on February 20.
Meticulous Organization Provides Strong Momentum, Unity Prevails in攻坚
To successfully execute this pressure testing攻坚, the project team meticulously organized and周密 deployed, deeply utilizing dynamic management ledgers for test packages and daily meeting systems. Differentiating by work teams and combining with advanced testing models like "joint pressure testing," real-time tracking and risk预警预判 of test packages were effectively achieved. Digital management tools were actively applied, effectively utilizing the Tarim Phase II 4D welding management system and automatic welding rod dispensing system. Collaborative联动 among design, construction, and inspection units on a single platform was conducted, performing a "full-body check" on all connection points like welds, flanges, and valves. Each valve and weld was assigned a专属 "ID card" QR code, achieving traceable and可视化管理 of the entire pressure testing process, greatly enhancing work efficiency and accuracy, making the testing process more standardized and efficient. In response to local temperatures, the project team also formulated winter pressure testing construction measures. Methods such as electric blankets + utilizing正式 tracing lines +正式 pipeline insulation, and搭建暖棚 (laying heating pipes inside暖棚 and adding electric heaters to increase ambient temperature) were employed to ensure normal pressure testing work during低温 weather. Immediately after pressure testing, plant air was used to purge residual water from the pipelines, effectively解决 winter pipeline testing防冻 and other challenges. The业主,监理, and quality inspection站 conducted strict reviews of on-site pipeline实体联检 and pressure testing documentation. From the preparation of test package documentation to on-site line checking,联检, and blind flange installation,特检院 and业主 plant personnel provided全力 support and cooperation. The project team's personnel braved the严寒, through countless sleepless nights,协助 diligently,抢工期 and铸造精品, ensuring the pressure testing tasks were "cleared daily," providing a solid foundation for the提前 completion of pressure testing.
Currently, the overall progress of the ethylene plant has reached 95.03%. The work focus has fully shifted to insulation/cold insulation construction, electrical/instrumentation system联调联试, single-unit test runs,以及 purging,复位, "three checks and four determinations" issue rectification, etc., entering the冲刺 stage before high-level mechanical completion. In the next step, the project team will锚定 the "May 30" mechanical completion节点目标, make renewed efforts, go all out, and deploy all精锐 forces. With a sense of urgency that "time waits for no one, seize the day" and the tenacity to "remain steadfast despite countless trials and tribulations," they will launch the final总攻 towards the goal of high-level mechanical completion.
