Time is precious; that is why PTTC works diligently to package technology
information such that busy independents can quickly wrap their minds around new
ideas. When it comes to adding something to my calendar, I must be convinced it
is necessary, and admit I have been resistant to the whole blogging/Twittering/social
networking movement.
I attended the Tertiary Oil Recovery Project conference in Wichita, Ks.,
where Edward Cross, president of the Kansas Independent Oil & Gas Association,
shared some thoughts that are overcoming my resistance. To quote from printed
information he provided, “Two-thirds of all members of Congress have a presence
on the social networking site facebook.com. One in 10 is on Twitter.
Seventy-nine percent of chiefs of staff, 66 percent of senior policy advisers,
and 65 percent of legislative assistants read blogs. Even more significant is
that 90 percent of congressional staffers use blogs to help determine
constituent opinion and 60 percent of them prefer online resources when
preparing their members for a vote.”
Cross stressed how advocacy must change and align itself with current trends.
To some degree, I am now convinced that technology transfer such as that PTTC
does must do a similar alignment. That is certainly true to reach the newer
generation, which lives in a world of “24/7 constant communication.”
As most of you know, PTTC now operates under the umbrella of the American
Association of Petroleum Geologists. Susan Nash, AAPG’s director of education
and professional development and also responsible for PTTC, has extensive
experience in the online world. So look for some PTTC initiatives in that realm.
Rest assured though, local, affordable work- shops on topics of interest where
you live and work will remain a mainstay of PTTC’s program.
It is now time to delve into some technology tidbits from the TORP
conference. Most are aware of the “very small” carbon- dioxide-flood pilot in
the Lansing-Kansas City formation that has been going on for years in Central
Kansas (see story page 173). Although the pilot did not perform anything like
expected (Can we say heterogeneity?), oil was mobilized and recovered–exhibiting
about 6 Mcf of CO2 per barrel of oil recovered, which is equivalent to field
performance in West Texas CO2 floods.
One lesson learned is that any future project must be large enough so that
oil, when it is mobilized, will be captured “somewhere.” So what if one did a
larger flood? Mark Ballard with TORP did some scoping work for field-scale
projects (there are two ethanol plants within reasonable proximity). Beyond all
the details, and it appeared to be a fairly thorough analysis, the rate of
return at $50-a-barrel oil exceeds 40 percent. That is enough potential to be
intriguing. Another important lesson learned in the pilot was that field
personnel quickly picked up operating experience with both the injector and
producers, demonstrating that independents can do it.
If one is seriously contemplating a CO2 flood, I recommend attending a
two-day “CO2 operating” workshop PTTC is hosting June 3-4 in Houston. Developed
by the Applied Petroleum Training Academy in Midland, Tx., the course is a prime
example of “those really in the know sharing what they know.”
Any one familiar with improved oil recovery in Kansas knows about the success
of larger volume polymer gel treatments in the Arbuckle. J.T. Portwood with
Eclipse IOR Services LLC challenged attendees not to have “Arbuckle tunnel
vision.” The gist of his message was to look at injection- side treatments.
Anyone operating a waterflood knows about the “short circuits” that destroy
sweep efficiency. Injecting polymer gel is one solution.
He recommended using lower polymer concentrations (less viscous and weaker
gels) in rock dominated by tortuous matrix flow or microfractures, and higher
polymer concentrations (more viscous and stronger gels) where flow is dominated
by fractures or vugs. Illustrating it well with schematics, Portwood discussed
how near-well-bore treatments (i.e., smaller gel plugs) work only when there are
upper/lower flow barriers/boundaries keeping fluids in zone. If those
upper/lower boundaries aren’t there, after a short time injection water simply
moves around the near-well-bore plug and once again flows through the channels.