Closed-loop conveyance systems for well servicing

Wells – Processes – With indicating – testing – measuring or locating

Reexamination Certificate

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Details

C166S250150, C166S065100, C166S163000, C340S853300

Reexamination Certificate

active

06868906

ABSTRACT:
A closed-loop system is used to perform a variety of well services. The well services include well completion services, production and maintenance services, and enhanced recovery services. A closed-loop system to complete an oil and gas well is an automated system under computer control that executes a sequence of programmed steps, but those steps depend in part upon information obtained from at least one downhole sensor that is communicated to the surface to optimize and/or change the steps executed by the computer to complete the well. A tractor conveyor with a Retrieval Sub is a tractor deployer that may be used to deploy completion devices and other devices within the wellbore to perform well services. The tractor deployer may be operated from a wireline, or from an umbilical. The umbilical may be made from composite materials and it may be a neutrally buoyant in any well fluids present. The umbilical provides power and data communications downhole. The umbilical may also be coiled tubing possessing electrical conductors. Other conveyance systems are provided to deploy completion devices and other devices within the wellbore to perform well services. The closed-loop system may also be used to monitor and control production of hydrocarbons from the wellbore.

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