2H井施工难度大：水平井段长，管柱摩阻大，对施工管柱要求安全系数高；
The construction of P202-2H well is hard due to long horizontal hole section and large string friction. High safety coefficient for strings in construction is required.
其主要技术包括管柱及工具优化设计、井口装置及地面流程设计、测试方式优选、施工参数优化为核心。
The key technologies include of optimal design on string and tools, wellhead and surface process, testing ways and construction parameters.
对钢管柱节点的设计进行了讨论，使其在实际施工中更具可实施性。
The design of the steel tubular column joints is also discussed, which makes it more operable in actual construction.
介绍了现场常用的三种管柱结构，简述了各工具部件的作用及现场施工工序。
Three type of testing pipes are introduced and function of every component and operating procedure are illustrated briefly.
实现了一趟管柱的试压与施工，保证了施工质量。
This makes test and operation in one procedure and the operation quality is insured.
在新疆和四川等探区，深井超深井压裂施工导致压裂管柱失效断裂，封隔器密封胶筒失效频率较高。
In the Sichuan and Xinjiang exploration area, fracturing in the deep or ultra deep Wells frequently results in the strings' breakage and the packer seal's malfunction.
现场施工效果表明，双封单卡分段压裂管柱在承压性能及过砂量要求上，能满足要求；
Field application results show that the string of double-sealing and single-stick subsection fracturing can meet the demands of pressurization behavior and sand amount.
较好地解决了分层压裂技术，并在工具技术、管柱设计技术、压裂填砂技术、施工技术等方面进行了配套。
By using dual packer technique, separate-layer fracturing has been run smoothly, with matching instrument, pipe string design, sand...
球塞气举方式采用U型双管柱易受套管尺寸限制，且施工作业较为复杂，其应用受到较大限制。
Pig lift method with U-shape double strings is easy to be limited by size of casing and very complicated in construction operation process. Thus, the large restrictions exist in the field application.
本实用新型提供一种制作简单、施工方便、传力明确的矩形钢管柱的矩形钢管柱铰接柱脚节点结构。
The articulated column node structure of a rectangular steel pipe column of the utility model has the advantages of simple production, convenient construction and unambiguous force transfer.
基于北京地铁四号线菜市口车站工程，介绍了钢管柱桩基的施工方案论证、技术措施和检测试验技术。
Based on Caishikou Station engineering of Beijing Metro Line 4, construction plan demonstration, technology measures and test technology about pile foundation of steel pipe column are introduced.
而且目前主要使用的几种钢管混凝土柱—混凝土梁刚性节点将钢筋贯穿钢管柱，削弱了柱的承载力，且施工复杂。
And several type concrete-filled steel tube columns to concrete beam connections through the steel columns, which weaken capacity of the column and complex construction.
现有的压裂管柱应用于大斜度超深井都存在明显的不足，影响了压裂施工成功率。
The pipe strings being used now for well fracture all have shortcomings in fracture operation of heavy-deviated and much deeper Wells, that decreases the success ratio of fracture operation.
现有的压裂管柱应用于大斜度超深井都存在明显的不足，影响了压裂施工成功率。
The pipe strings being used now for well fracture all have shortcomings in fracture operation of heavy-deviated and much deeper Wells, that decreases the success ratio of fracture operation.
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