Petroleum Engineering expertise needed
Because of casing issues, the Petrohawk Sample 4 # 1 in T14N,R11W, Red River Parish is, as far as I know, the lowest IP well that Petrohawk has so far @ a little over 5 million/day on restricted choke. Petrohawk has drilled a second well in the section, the Sample 4 #2. In reviewing this well on Sonrus, I noticed the following detail dated 02/02/2009: TD 1/30/09
Set 4 1/2" to 6494' & 5" to 9864' (set 2 strings longstring) w 800 sx cement. I know what it all means except for the the two strings of production casing. Why would Petrohawk set two strings of production casing of different size? Would they be doing this out of an abundance of caution because of casing problems in the Sample 4 #1? I think this is a petroleum engineering question which probably has a simple answer. Any help out there?
Set 4 1/2" to 6494' & 5" to 9864' (set 2 strings longstring) w 800 sx cement. I know what it all means except for the the two strings of production casing. Why would Petrohawk set two strings of production casing of different size? Would they be doing this out of an abundance of caution because of casing problems in the Sample 4 #1? I think this is a petroleum engineering question which probably has a simple answer. Any help out there?
Views: 53
Replies to This Discussion
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Permalink Reply by Les Bamburg on -
SB, sorry this is beyond my expertise. I suspect some errors in the information since they do not show any casing run to the end of the lateral.
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Permalink Reply by The_Baron on
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The main thing that jumped out to me was this: 12/02/2008 SURFACE CASING RE-TEST FAILED
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Permalink Reply by TPFH on
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If you take 6954' of 41/2" and the 9864" of 5" and add together you should get 16,358'. Sonris said td was
16,415'. This would put 57' of TD with the string. I would think this was and error in posting.
You could never get 4.5" & 5: inside of 7'' csg.
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Permalink Reply by Les Bamburg on
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TPFH, you get a gold star and an A+ for your powers of deduction.
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Permalink Reply by Spring Branch,mineral owner on
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I took it to mean that they ran 4 1/2" casing from surface to 6,494" and 9,864' of 5" from 6,494' to the total depth @ approx 16,358'. I'm just not sure if the different size casing has any significance. Maybe it's just what they had on hand.
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Permalink Reply by Les Bamburg on
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SB, I am thinking the reverse. Run the 5" from surface to 9864' with the 4&1/2" from there to 16358'. In essence the production casing for the lateral is the smaller pipe.
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Permalink Reply by Spring Branch,mineral owner on
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Why of course you'd be right....I wasn't thinking clearly.
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