| Agency | Form: (02)
400002792
09/28/2009 | <style type="text/css">
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<p><span class="Normal">1) Provide 24 hr notice of spud to Ed Binkley at 970-506-9834 or e-mail at ed.binkley@state.co.us . 2) Set </span><span class="Normal">surface casing per Rule 317d, with cement to surface. Setting surface casing less than the approved depth is </span><span class="Normal">a permit violation unless prior written approval is obtained from the COGCC. 3) If completed, provide cement </span><span class="Normal">coverage from TD to a minimum of 200' above Niobrara. Verify coverage with cement bond log. 4 If dry hole, </span><span class="Normal">set 60 sks cement from 50’ below D Sand base to 100’ above D Sand top, 40 sks cement 50’ above Niobrara </span><span class="Normal">top, 50 sks cement ½ out, ½ in surface casing, 10 sks cement top of surface casing, cut 4’ below GL, weld on </span><span class="Normal">plate, 5 sks cement in rat hole & 5 sks cement in mouse hole. Restore surface location.</span></p>
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| Agency | Form: (02)
400002792
10/27/2009 | <style type="text/css">
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<p><span class="Normal">THIS WELL IS AN EXCEPTION LOCATION TO RULE 318Aa,318Ac. WAIVERS ARE ATTACHED.</span></p>
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| Agency | Form: (02)
400002792
10/27/2009 | <style type="text/css">
p {margin:0px 0px 0px 2px;}
ul {margin-top:2px;margin-bottom:2px;}
ol {margin-top:2px;margin-bottom:2px;}
H1 {font-family:Arial;font-size:28px;text-align:Left;vertical-align:Middle;color:#000000;font-weight:bold;}
H2 {font-family:Arial;font-size:24px;text-align:Left;vertical-align:Middle;color:#000000;font-weight:bold;}
H3 {font-family:Arial;font-size:18px;text-align:Left;vertical-align:Middle;color:#000000;font-weight:bold;}
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<p><span class="Normal">UNIOIL HAS OBTAINED WAIVERS FROM THE SURFACE OWNER ,LGD, AND OPERATOR TO WAIVE </span><span class="Normal">THE WHOA PERIOD (305d1). WAIVERS ATTACHED.</span></p>
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| Engineer | Form: (06)
402396589
05/15/2020 | Prior to starting plugging operations a Bradenhead test shall be performed if there has not been a reported Bradenhead test within the 60 days immediately preceding the start of plugging operations.
1) If, before opening the Bradenhead valve, the beginning pressure is greater than 25 psi, sampling is required.
2) If pressure remains at the conclusion of the test, or if any liquids were present during the test, sampling is required.
The Form 17 shall be submitted within 10 days of the test. Sampling shall comply with Operator Guidance - Bradenhead Testing and Reporting Instructions. If samples are collected, copies of all final laboratory analytical results shall be provided to the COGCC within three (3) months of collecting the samples.
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| Engineer | Form: (06)
402396589
05/15/2020 | Operator shall implement measures to control venting, to protect health and safety, and to ensure that vapors and odors from well plugging operations do not constitute a nuisance or hazard to public welfare.
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| Engineer | Form: (06)
402396589
05/15/2020 | 1) Provide 48 hour notice of plugging MIRU via electronic Form 42.
2) Prior to placing the 1530’ plug: verify that all fluid migration (liquid or gas) has been eliminated. If evidence of fluid migration or pressure remains, contact COGCC Engineer for an update to plugging orders.
3) After isolation has been verified, pump plug and displace. If cement is not circulated to surface, shut-in, WOC 4 hours then tag plug – must be at 473’ or shallower and provide 10 sx plug at the surface.
4) Leave at least 100’ of cement in the wellbore for each plug.
5) Properly abandon flowlines per Rule 1105. File electronic Form 42 once abandonment of on-location flowlines is complete. Within 30 days of an operator completing abandonment requirements for an off-location flowline or crude oil transfer line the operator must submit a Flowline Report, Form 44.
6) With the Form 6 SRA operator must provide written documentation which positively affirms each COA has been addressed.
7) After placing the shallowest hydrocarbon isolating plug (2500'), operator must wait a sufficient time to confirm static conditions. If at any time after placing this plug there is evidence of pressure or of fluid migration, contact COGCC engineering before continuing operations.
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