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8746047 
Meetings & Symposia 
Connector conductor wells technology in Brunei Shell Petroleum achieve high profitability through multiwell bores and downhole connections 
Al-Khodhori, S; Al-Riyami, H; Holweg, P; Wright, J 
2008 
1 
43-47 
English 
Brunei Shell Petroleum (BSP) has successfully implemented a world first technology application known as Connector-Conductor (CC) Wells. The CC-wells consist of two parts: the Conductors and the Connectors. The Conductors (feeders) are horizontal well bores drilled within the oil rims. The hole sections above top reservoir are abandoned such that several of these Conductor sections can be sidetracked from a common (near-) vertical mother well to different oil rims. The Conductors act as horizontal flow conduits within the reservoir and the production to surface take place through dedicated Connector (Producer) wells. The Connector wells are therefore designed to connect several Conductor well bores and provide the completion equipment to surface. The CC well had been successfully implemented in February 2007 in the Seria field, part of the Brunei Shell Petroleum Darat Asset. A land well (S-840) was drilled horizontally to intersect and connect with an offshore well in the Seria North Flank field (S-833). Two Vector Magnetics ranging techniques were used to accomplish the close proximity well by-pass. Conventional perforation technology was used to accomplish the mechanical and hydraulic connections. A stable connection was achieved. The Darat CC wells project is the first of its type to be successfully completed worldwide. Although the concept is new in BSP and in Shell, the used technologies for this project are off the shelf and have been in the market for a while. Success of the Darat CC wells project proved the technical feasibility of the concept for wider implementation across BSP fields and Shell assets. This paper aims to provide a description of the concept, present details on applied technologies, share the challenges and values of the Darat CC wells project and list recommendations and way forward of future applications. Copyright 2008. IADC/SPE Drilling Conference.