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A method of forming and servicing wellbores from a main wellbore

机译：一种从主井眼形成和维修井眼的方法

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摘要

The present invention provides methods for forming multiple wellbores from a single location. A relatively large diameter main wellbore is drilled to a known depth. A plurality of spaced apart wellbores are formed from the bottom of the main wellbore, wherein at least one such wellbore is a production wellbore for producing hydrocarbons from subsurface formations. Wellhead equipment for each production wellbore is installed at main wellbore bottom. Additional devices or equipment are also placed in the main wellbore, preferably near the bottom. Such equipment may include a fluid processing apparatus, chemical injection equipment for injecting chemicals or additives into the wellbores, compressors for injecting compressed gas into one or more of the production wellbores or for transporting a gas to the surface, robotics devices for placing and/or removing devices or materials from the wellbores, a control unit for monitoring and controlling apparatus and devices in the main wellbore and the production wellbore, and any other desired equipment for performing a useful function relating any of the wellbores. A secondary access wellbore may be formed from the main wellbore or the surface for storing apparatus that is used to monitor and/or control the operation of devises in the production wellbores during the various stages in the life of such wellbores. Some of the equipment deployed in the main wellbore is prefabricated and may be retrieved. selective redundant equipment is provided to allow uninterrupted production from the various wellbores.

机译：本发明提供了用于从单个位置形成多个井眼的方法。相对较大直径的主井眼钻至已知深度。从主井眼的底部形成多个间隔开的井眼，其中至少一个这样的井眼是用于从地下地层生产烃的生产井眼。每个生产井眼的井口设备安装在主井眼底部。另外的设备或设备也被放置在主井眼中，优选地靠近底部。这样的设备可以包括流体处理设备，用于将化学药品或添加剂注入到井眼中的化学注入设备，用于将压缩气体注入一个或多个生产井眼中或用于将气体传输到地面的压缩机，用于放置和/或/或机械手的机器人设备从井筒中移除装置或材料，用于监视和控制主井筒和生产井筒中的装置和装置的控制单元，以及用于执行与任何井筒相关的有用功能的任何其他期望的设备。辅助进入井眼可以由主井眼或用于存储设备的表面形成，该设备用于在这样的井眼寿命的各个阶段期间监视和/或控制生产井眼中的装置的操作。部署在主井眼中的某些设备是预制的，可以取回。提供了选择性的冗余设备，以允许各种井筒的不间断生产。

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公开/公告号AU4819797A

专利类型
公开/公告日1998-05-05

原文格式PDF
申请/专利权人 BAKER HUGHES INCORPORATED;
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申请/专利号AU19970048197
发明设计人 CHRISTOPHER L GANN;JOSEPH F. DONOVAN;MICHAEL H JOHNSON;ROGER P. HERBERT;
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申请日1997-10-08
分类号E21B43/30;E21B43/01;E21B43/14;E21B19/14;E21B43/38;E21B43/40;E21B17/00;E21B17/18;E21B36/00;E21B33/035;E21B33/037;
国家 AU
入库时间 2022-08-22 02:53:14

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