Oil & Gas Pro

Maybe Bigger is Not Always Better--Recent PetroHawk Announcement

Included in the 62 operated wells that are currently on production are four wells being tested at restricted rates to compare the decline characteristics of the test wells to other wells in the same area that have been produced conventionally. The four test wells, which have been kept on a 14/64" choke since first production, had initial production rates of between 8-9 Mmcfe/d and flowing casing pressures of approximately 8500#. They have all exhibited shallower decline rates in both production and flowing pressure than the control set. The oldest well in the group has produced approximately 900 Mmcfe and has considerably higher flowing pressure than the control wells had at the same cumulative production. Further study of the economic and reservoir implications of this reduced rate method are needed before any conclusions are reached that would impact the Company's production practices.


I have posted numerous times that maybe flowing your horizontal shale wells at "Hall of Fame" rates is not such a good idea. Looks like there may be some truth to my theory after all.
Jay

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landownerPermalink Reply by Henry on November 13, 2009 at 9:51
I'm sure glad to have the o/g companies doing all this experimenting on others' wells. I'm happy to wait for their expertise to rise, their drilling costs to fall, and the price of gas to go back over $5!
Permalink Reply by GEORGE D BROCKNER on November 13, 2009 at 11:16
I agree with ya'lls theory. The only trouble is -- I ain't getting any younger.

landownerPermalink Reply by redrivergal on November 13, 2009 at 13:54
Jay,
Can you tell us the names, numbers, and/or locations of the four test wells to which you are referring? Thx in advance.

landownerPermalink Reply by L. Brent Moseley on November 14, 2009 at 9:56
One of the four wells is the Petrohawk Dehan 23944 well mentioned in the Mainland Resources press relese. Section 15 T 13N 14W


http://www.reuters.com/article/pressRelease/idUS87428+21-Sep-2009+P...

landownerPermalink Reply by w.r. frank on November 17, 2009 at 5:49
From HK Q2 Transcript:

"Another well of note is the Mathew 17, Number 1, which is the first well that we will produce at restricted production rates. Located in the Section 17, of 13:11 the well has been restricted to a 14/64 choke since the onset of this post frac flow back. The well was placed on production July 21 and has steadily increased its rate and pressure to the point that it was producing 8.9 million a day with 9,035 pounds flowing casing pressure on the same 14/64 choke.

We intend to produce this well on the restricted choke for the foreseeable future, with the intent to be able to compare decline characteristic to other wells in the area that have been produced on larger choke sizes. This comparison could help aid our production practices in the future, as well as possibly provide a new set of data with which to project EUR."
Permalink Reply by BobsUncle on November 13, 2009 at 14:15
This is really interesting. Where did it come from? I didn't see it on Petrohawk's website.
Permalink Reply by BobsUncle on November 14, 2009 at 2:47
Thanks, I see it in their press release regarding 3Q Financial Results

landownerPermalink Reply by kittycatmama on November 15, 2009 at 15:03
Jay, I think Encana is also reducing flows in north Desoto to reduce the decline rate. We are participants in some of wells in these sections and we are glad. We would rather have each well last a few years than have it go 100% at cheap gas and then be over in a couple of years
Permalink Reply by JM on November 16, 2009 at 1:43
Jay, A meter at a well site on our property says orifice opening 2.75000". Is that the same as the choke?

landownerPermalink Reply by Spring Branch,mineral owner on November 16, 2009 at 4:26
I am not sure what it is but I do know what it isn't. It is not choke size.
Permalink Reply by JM on November 16, 2009 at 6:13
You are right, it is a digital meter. No completion information has been posted on sonris yet.
Permalink Reply by Muddigger on March 25, 2010 at 10:18
That is the size of the orfice plate used to measure the gas.

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