Production wellbore deflector-less multilateral system using a guidance sub
By employing an articulating buoyant guidance sub that eliminates the need for a deflector tool, the completion of multilateral wells is streamlined, reducing costs and time.
WO2025058670A1 Publication Date: 2025-03-20HALLIBURTON ENERGY SERVICES INC
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Patent Information
- Application Number
- PCT/US2024/022905
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-04-03
- Filing Date
- 2024-04-04
- Publication Date
- 2025-03-20
AI Technical Summary
Technical Problem
Traditional multilateral well completion methods require an extra trip to run a deflector tool, increasing costs and completion time.
Method used
The use of an articulating buoyant guidance sub that directs the lateral completion string out the multilateral window into the lateral bore without the need for a deflector tool, utilizing buoyant materials and mechanical spring assistance for guidance.
Benefits of technology
This approach eliminates the need for a deflector tool, reducing the number of trips required and shortening the completion time and cost of multilateral wells.
✦ Generated by Eureka AI based on patent content.
Abstract
An apparatus comprises a guidance sub to be attached to a tubular string for conveyance of the tubular string in a multilateral wellbore. The guidance sub comprises an articulating buoyancy structure that comprises multiple buoyancy links comprised of a buoyant material such that the articulating buoyancy structure is to have a buoyancy within a well fluid that is downhole in a primary wellbore, wherein the multiple buoyancy links are coupled together such that joints are formed between the multiple buoyancy links to allow movement between adjacent buoyancy links of the multiple buoyancy links, wherein the articulating buoyance structure is configured to direct guidance sub out of a multilateral window from a main bore and into a lateral bore of the multilateral wellbore.
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