Well initiation service system with packer control system

The well initiation service system with a multi-resettable packer assembly and ESP addresses the inefficiencies and limitations of existing ESP systems in hydrocarbon well development, enhancing operational efficiency and enabling operation in challenging environments.

WO2025072251A1 Publication Date: 2025-04-03SAUDI ARABIAN OIL CO +1
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Patent Information

Application Number
PCT/US2024/048291
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-09-28
Filing Date
2024-09-25
Publication Date
2025-04-03

AI Technical Summary

Technical Problem

Existing hydrocarbon well development methods, particularly those using electrical submersible pumping systems (ESPs), face challenges such as time-consuming unloading processes, complex logistics, inefficient packer system operations, and limitations in high hydrogen sulfide (H2S) environments.

Method used

A well initiation service system incorporating a bottom hole assembly (BHA) with a multi-resettable packer assembly and an electrical submersible pump (ESP) that can be deployed in production tubing. The system includes a stroker tool for compressing and decompressing the packer, a port sub for hydraulic connection, and sensors for real-time data measurement, enabling efficient well unloading and natural flow initiation.

Benefits of technology

The system significantly enhances operational efficiency by reducing the need for multiple packer settings, handling high temperatures and solids debris, and enabling operation in high H2S wells, thus facilitating effective well unloading and natural flow initiation.

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Abstract

System and method for a bottom hole assembly, BHA (104) in production tubing including an electrical submersible pump, ESP (124), multi-resettable packer assembly (126), sensor, power and communications bus, and control system. The multi-resettable packer assembly (126) includes a multi-resettable packer (202), a port sub (208) hydraulically connecting production tubing to the ESP (124), an inner mandrel (304) inside the multi - resettable packer (202) axially movable within the multi-resettable packer (202) and port sub (208), and a stroker tool (206) configured to compress and decompress the multi-resettable packer (202) to seal and unseal an inner surface of production tubing. The stroker tool (206) includes slips to grip the inner surface and a piston (308) that extends from and retracts into the stroker tool (206). The sensor is configured to measure operating data including a pressure measurement. The power and communications bus powers and transmits signals to the BHA (104). The control system monitors operating data and controls the stroker tool via the power and communications bus.
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