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首页> 外文会议>SPE/PS-CIM/CHOA international thermal operations and heavy oil symposium and international horizontal well technology conference >Innovative Design Allows Construction Of Level 3 Or Level 4 Junction Using The Same Platform
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Innovative Design Allows Construction Of Level 3 Or Level 4 Junction Using The Same Platform

机译：创新的设计允许使用同一平台构建3级或4级交界处

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The simple and most economical multilateral option inrnthe production of heavy oil with optimum solids control isrnto employ either level 3 or level 4 junctions to accessrnand drain oil bearing sand bodies.rnThis paper presents an innovative junction design whichrnwhen fully deployed, can be left as a level 3rnconstruction, or it can be turned in to level 4 byrnconventionally cementing the junction. In practice thernisolation provided with the level 3 construction farrnexceeds the capabilities of conventional alternatives,rnand when cemented as a level 4, provides a junctionrnwith stability beyond that afforded by conventionalrnmethods. In either scenario, access to the main borernbelow the junction and to the lateral bore is maintained.rnOnce the junction is in place, conventional completionrnequipment can be run after drilling the lateral to facilitaternthe production.rnIn addition, this innovative junction offers otherrnadvantages. Among those are, (1) Milling or washover ofrnexcess liner is not required when constructing a level 4rnjunction because there is no excess liner left in the mainrnbore during the junction construction. (2) The lateral linerrncan be deployed simultaneously with the junction forrnboth level 3 and level 4 junctions. (3) The platform allowsrnfull re-entry capability into main and lateral bores in arnsingle or stacked junction configuration.rnThe paper will also discuss in detail, recent fieldrninstallations and developments of this innovative designrnin level 4 complexity in 9-5/8” 40 lb/ft casing.rnMajor system components and their functions arerndescribed, as well as running procedures andrnlessons learned.
机译：简单和最经济的多边方案是在生产具有最佳固含量的重油时，采用3级或4级交界处来接入和排放含油砂体。本文提出了一种创新的交界处设计，当完全展开时，可以将其保持水平3号建筑，也可以通过常规方式将结点胶合到4级。在实践中，具有3级构造的隔离远远超出了常规替代方案的能力，并且在胶合为4级时，提供的连接具有超出常规方法所提供的稳定性。在这两种情况下，通向接头下方的主孔和侧孔的通道均得以维护。一旦接头就位，就可以在钻完侧管后运行常规完井设备，以利于生产。此外，这种创新的接头还具有其他优点。其中包括：（1）在建造4级连接处时，不需要铣削或冲洗多余的衬管，因为在交接施工期间主孔中没有多余的衬管。 （2）侧线可以与3级和4级交界处的交界处同时部署。 （3）该平台允许在单个或堆叠式连接配置中完全重新进入主孔和侧孔。rn本文还将详细讨论这种创新设计在9-5 / 8“ 40 lb的4级复杂性中的最新安装和发展。描述了主要的系统组件及其功能，以及运行过程和经验教训。

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