斯伦贝谢水平分支井介绍1.pdf
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1、Schlumberger Private 多底井技术交流会多底井技术交流会 Schlumberger Private 多底井定义 What is a Multilateral The definition of a multilateral well is: 两条或两条以上水平或近水平 井段钻由同一主井眼并回接到 该主井眼 A well in which there is more than one horizontal or near horizontal lateral well drilled from a single mainbore and connected back to th
2、e same mainbore Schlumberger Private First Multilateral - 世界第一口多底井 1953年, 俄罗斯 First Multilateral well was drilled in Russia in 1953 从主井眼分出9个分枝 暴露产油区域5.5倍 产量增加17倍 Schlumberger Private 高级多底井技术 Technology Advancement of MultiLaterals (TAML) 高级多底井技术合作组织的目标是通过对话, 信息和技术交流 以及共同倡议来推动该技术在石油工业的有效发展和利用 The obj
3、ective of the TAML consortium is to promote the efficient development and utilization of multilaterals within the international petroleum industry, through dialogue; information and technology exchange; and collective sponsorship 部分组织成员部分组织成员 Some TAML MembersSome TAML Members Aramco, Baker Hughes,
4、BPAmoco, ChevronTexaco, ExxonMobil, Norsk Hydro, Phillips, Saga, Schlumberger, Shell, Smith, Sperry Sun, Statoil, TIW,Total, Weatherford, Well Service Technology TAML-高级多底井技术 Schlumberger Private 多底井分级介绍 TAML (Technology Advancement MultiLateral) Schlumberger Private TAML 分级定义 TAML Level 1 Definitio
5、n - 一级 Open Hole Mainbore and LateralsOpen Hole Mainbore and Laterals 裸眼 - Open Hole 已完成数以千计的此类井 -Thousands of wells completed 稳固的地层 - Consolidated formations 简便易行- Simple 重新进入分枝受限 - Lateral access limited 产油控制受限 - Production control limited Schlumberger Private TAML Level 2 Definition - 二级 Cemented
6、 Mainbore and Openhole Lateral 主井眼固井,分枝裸眼 Cemented Mainbore and Openhole Lateral 主井眼固井,分枝裸眼 无困难再入主井眼 - Full mainbore access 连接处无机械支持 - No support at Junction 可能再入分枝 - Lateral reentry potential 稳固的地层 - Consolidated formations 可下衬管, 但无法回接到主井眼 - Liner is optional, but can not be attached to the mainbor
7、e Schlumberger Private TAML Level 3 Definition - 三级 Cased Hole Mainbore, Mechanically Connected Lateral Liner 主井眼固井,分枝与主井眼机械连接 Cased Hole Mainbore, Mechanically Connected Lateral Liner 主井眼固井,分枝与主井眼机械连接 连接处机械支持 - Junction mechanically supported 侧向衬管悬挂到主井眼, 但无固井 - Lateral liner anchored to mainbore wi
8、th a liner hanger but not cemented 重进入主井眼与分枝皆可能 - Mainbore and lateral reentry access 稳固的地层 - Consolidated formations 连接处无水力密封 - No hydraulic integrity at the junction Schlumberger Private TAML Level 4 Definition - 四级 Mainbore 侧向井眼裸眼完井, 提供外径5“套管接箍 的短接 Casing joint with orienting nipple Simple and in
9、expensive Provides permanent datum Full bore ID, Casing collar OD 5 nipple profiles available 适用 Application 特点 Features Schlumberger Private 下分度套管接箍 Running the Indexing Casing Coupling (ICC) 钻到设计深度 Drill to depth 按照标准程序下连接着ICC的套 管到设计深度 Run the casing with ICC to depth as per standard procedures Sc
10、hlumberger Private 注水泥固ICC Cementing the ICC 按照标准操作注水泥固套管; 不需要调节套管的方位 Cement the casing as per standard operations; no orientation is needed on the casing Schlumberger Private 清洗ICC Cleaning the ICC 可清洗ICC; 可用一个喷射接头 来清洗ICC中的水泥; ICC表面涂 层可以防止水泥粘结 The ICC can then be cleaned if desired; A jetting sub i
11、s used to clean any cement that might be in the ICC; Proprietary coating helps to prevent cement from sticking to the profiles of the ICC Schlumberger Private ICC定位 Determining the Orientation 需用超声摄像工具或者SLIM-1 MWD勘测来确定ICC的方位 To determine the orientation of the ICC an UltraSonic Imagining (USI) tool
12、or a Survey with a SLIM-1 MWD should be run Schlumberger Private 选择性联顶仪 (SLT) Selective Landing Tool (SLT) Schlumberger Private 下磨铣组合 Run the Milling Assembly 调节造斜器和SLT之间的角度 Adjust the angle between the Selective Landing Tool (SLT), and the Whipstock Collar-gage S-290711 Interface mandrel S-290690 S
13、et screw (3 set screws) 3/4 - 10 UNC Lug (3 pieces) S-290670 Indexing ring S-290679 Mandrel S-290651 0 350 10 造斜器 Whipstock SLT 下磨铣组合, 调整方位放置在ICC Run the milling assembly, then set and orient in the ICC Schlumberger Private 磨铣侧孔 Milling the Window 在套管上磨铣出一侧孔 Mill the window in the casing 钻造一短的井眼 Cre
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