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SUBSEA VOLTAGE PENETRATOR AND REPLACEMENT SYSTEM

IP.com Disclosure Number: IPCOM000248470D
Publication Date: 2016-Dec-02
Document File: 3 page(s) / 364K

Publishing Venue

The IP.com Prior Art Database

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 52% of the total text.

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SUBSEA VOLTAGE PENETRATOR AND REPLACEMENT SYSTEM

SUMMARY
[0001]
A Compact Electrostatic Separator (CES) if often used during the production of hydrocarbons at an oilfield. Specifically, a CES may be used to help remove water from oil being produced. A CES operates by introducing a high voltage field or gradient to produced fluids that results in the coalescing of water droplets and eventual removal. One of the components of the CES is a high voltage penetrator that is subject to periodic failure and the need for replacement to allow the CES to continue to function. The equipment cost of the penetrator may be insubstantial. However, in a subsea environment, replacement presents unique challenges. Thus, the disclosure hereof proposes a new and unique penetrator and replacement system that substantially overcomes such challenges.

DESCRIPTION
[0002]
In the following description, details are set forth to provide an understanding of the present disclosure. However, it will be understood by those skilled in the art that the embodiments described may be practiced without these particular details. Further, numerous variations or modifications may be employed which remain contemplated by the embodiments as specifically described.

[0003] As alluded to above, the current proposal is for a tool for retrievability of a high voltage penetrator that will be an enabler for the CES. The CES is a compact and lightweight tool for separating water from crude oil. The principle of electrostatic separation involves subjecting oil and water emulsion to high voltage fields. Voltage gradient in the electrostatic field causes small water drops tocoalesce and hence seprate from the oil phase.

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[0004] A high voltage penetrator is used to provide electrical connection between the high voltage transformer and electrodes in the CES to promote oil/water separation. The penetrator is an important component to the CES but it also has a risk of failure due to several operating parameters. In order to allow for easy and quick intervention during such a failure of the penetrator, a tool for retrievability is proposed as depicted below in Figure 1. Using...