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Blowout Preventers<br />
These requirements mean that there;<br />
must be enough casing in the well to<br />
provide an anchor for the wellhead<br />
<strong>equipment</strong>,<br />
there must be provision for <strong>equipment</strong> to<br />
close the hole with or without pipe in well,<br />
the <strong>equipment</strong> must provide for the<br />
attachment of lines for bleeding off<br />
pressure, and<br />
it must allow pumping into the working<br />
string or annulus.
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