Is it necessary to install a downhole safety valve in a subsea ... - NTNU
Is it necessary to install a downhole safety valve in a subsea ... - NTNU
Is it necessary to install a downhole safety valve in a subsea ... - NTNU
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<strong>Is</strong> <strong>it</strong> <strong>necessary</strong> <strong>to</strong> <strong><strong>in</strong>stall</strong> a <strong>downhole</strong> <strong>safety</strong> <strong>valve</strong> <strong>in</strong> a <strong>subsea</strong> oil/gas well?<br />
In the example the most common components are <strong>in</strong>cluded and listed below. Other well<br />
equipment is neglected.<br />
The system of the example well comprise the follow<strong>in</strong>g ma<strong>in</strong> <strong>it</strong>ems:<br />
13 5/8” cas<strong>in</strong>g hanger seals<br />
Annulus master <strong>valve</strong><br />
Annulus swab <strong>valve</strong><br />
Annulus w<strong>in</strong>g <strong>valve</strong><br />
Crossover l<strong>in</strong>e<br />
Crossover <strong>valve</strong><br />
Downhole <strong>safety</strong> <strong>valve</strong><br />
Hydraulic control l<strong>in</strong>e<br />
Production master <strong>valve</strong><br />
Production packer<br />
Production w<strong>in</strong>g <strong>valve</strong><br />
Seal assembly<br />
Swab <strong>valve</strong><br />
Tub<strong>in</strong>g<br />
Tub<strong>in</strong>g hanger seal (annulus bore)<br />
Tub<strong>in</strong>g hanger seal (production bore)<br />
Wellhead seal<br />
Diploma thesis, <strong>NTNU</strong> 2002<br />
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