Directive 065: Resources Applications for Oil and Gas Reservoirs ...
Directive 065: Resources Applications for Oil and Gas Reservoirs ...
Directive 065: Resources Applications for Oil and Gas Reservoirs ...
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Environment <strong>and</strong> Safety<br />
The ERCB is also responsible <strong>for</strong> environmental <strong>and</strong> safety issues when approving gas<br />
storage schemes. There<strong>for</strong>e all injection wells must meet the requirements of ERCB <strong>Directive</strong><br />
051 to ensure that the integrity of the wellbore will prevent contamination of other zones <strong>and</strong><br />
to protect all groundwaters.<br />
Requirements<br />
1) For gas storage wells injecting hydrogen<br />
sulphide (H 2 S), all completion data, well<br />
logs, testing requirements, <strong>and</strong> associated<br />
discussions, as described in <strong>Directive</strong> 051.<br />
Comments<br />
All gas storage wells injecting gas containing<br />
H 2 S must meet <strong>Directive</strong> 051 requirements<br />
prior to the wells going on injection <strong>and</strong> prior<br />
to the approval being issued. It is necessary<br />
to ensure that the integrity of the wellbore<br />
will prevent contamination of other zones<br />
<strong>and</strong> protect all groundwaters. A preliminary<br />
review of the application <strong>and</strong> a letter noting<br />
approval in principle pending successful<br />
<strong>Directive</strong> 051 completion <strong>and</strong> proven<br />
injectivity may be issued if you desire to do<br />
the application in two stages.<br />
2) For non-H 2 S gas storage, provide<br />
a) the completion logs <strong>and</strong> associated<br />
discussion required by <strong>Directive</strong> 051 <strong>for</strong><br />
all gas storage wells, or<br />
b) a discussion of your plans <strong>for</strong><br />
complying with <strong>Directive</strong> 051, or<br />
c) a request <strong>for</strong> waiver of the <strong>Directive</strong> 051<br />
requirements, or<br />
You should specify in the application<br />
whether the proposed gas storage wells are in<br />
compliance with <strong>Directive</strong> 051 requirements.<br />
If they are not, provide a discussion of the<br />
plans to bring the wells into compliance with<br />
<strong>Directive</strong> 051 or indicate that a waiver is<br />
requested or has been approved. It is not<br />
necessary <strong>for</strong> <strong>Directive</strong> 051 requirements to<br />
be met in order <strong>for</strong> a gas storage scheme<br />
approval to be issued except when H 2 S is to<br />
be injected.<br />
d) a copy of an ERCB letter waiving the<br />
<strong>Directive</strong> 051 requirements.<br />
3) When requesting an extension to the threemonth<br />
period <strong>for</strong> <strong>Directive</strong> 051 submission,<br />
provide<br />
a) the proposed submission date, <strong>and</strong><br />
b) the reason(s) <strong>for</strong> needing the<br />
submission date extension.<br />
For gas storage scheme approvals <strong>for</strong> non-<br />
H 2 S gas injection issued in advance of<br />
<strong>Directive</strong> 051 requirements being met, the<br />
ERCB will expect you to submit the<br />
<strong>Directive</strong> 051 in<strong>for</strong>mation within three<br />
months of the approval’s issue date. If three<br />
months is not sufficient time to meet the<br />
<strong>Directive</strong> 051 requirements, you must request<br />
an extension.<br />
ERCB <strong>Directive</strong> <strong>065</strong>: <strong>Resources</strong> <strong>Applications</strong> / Underground <strong>Gas</strong> Storage (October 2011) • 4-21
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