A RETRIEVABLE SUBSEA APPARATUS WITH A PRESSURE AND VOLUME COMPENSATING SYSTEM
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United States of America Patent
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Sep 17, 2015
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Sep 19, 2014
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Abstract
A retrievable subsea apparatus (1) with a pressure and volume compensating system, the apparatus comprising: a housing (1′) having in its interior a control system (9) located in a first section (3) thereof and an operating unit (6) located in a second section (4) thereof. The apparatus further comprises a penetrator (2) which constitutes an interface between the first section (3) and the second section (4), wherein the first section (3) has a substantially constant first pressure. An external pressure compensator (5, 5′) is associated with the second section (4) having a second pressure. The operating unit (6) comprises at least a first sub-unit (6′) and at least a second sub-unit (6″). The second section (4) is subdivided into at least a first sub-section (4′) and at least a second sub-section (4″) which is sealed off from the first 1,1 section (4′) and being associated with respective sub-unit (6′, 6″).
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