The Morning Tulsa daily world. [volume] (Tulsa, Okla.) 1919-1927, 1922-06-05
COmdr Diamond Core DriH
Test to "Spnd In" June 23

Test to "Spnd In" June 23
james ID. Whinnin. diamond cor,
drill expert, recently of Tampico
Mexica, who drilled In the first pro.
duction for the Atlantic Roflning
company with the sullivan diamond
core drill. states that the test on tho
United states government survey
Salt Fork anticlino will spud In on
or about June 23. and that he will
be In charge OF operations.
When asked what his experience
with the diamond core drill had
been In connection with oil develop-
ment work In Mexico, Wr. Whinnln
said!
I'm the first place, no one of
sound mind who has given the mat
ter careful thought and taken the
situation at all seriously will dispute
tho statement that some method
must be found that will supply ac-
curate Information on underground
conditions and reduce the cost of
prospecting In deep territory to n
reasonable basis.-thla know from
experience the diamond core drill
Will do.
"The Importance OF this test In
realized from the fact that most OF
the large companies have significd
their intention to detail their sub
surface geologlsts to stay on the
ground and correlate the informa-
ton obtained with tho formations
from other producing horizons In
the territory.
"a core is recovered from all solid
material so that II II possible 10
Identify the "various strata, deter.
nta nj
bearing rocks for porosity and sat.
uration. In wiidcattlng or explora-
ton work. the information afforded
by the diamond drili Is invaluable
10 the geologist or engineer. as he
not only can plot structure intclll-
gently. but can tell whether or not
the hole is In favorable formation
and at what depth oil may be ex-
pectod.
In formations scch ms are found
In the Tamplco, Mexico, district.
where the material is soft TO n depth
or about 1,400 feet and solid below,
IL II frequently necessary, whore old
style machinery IL used, to drill the
soft material with rotary drill.
using mud fluid, then use the cable
tools To drill the solid material and
pring In the wellN The diamond
arm. now recognized by most of the
major oil companies as the last word
IN oil well drilling. handles both
formations without difficulty; using
mud fluid, with flsh-tail bit In the
upper measures. and corinR the
harder formation with the diamond
DIT. In soft clays. shales or gumbo,
when there liz IA possibility OF en-
countering oil and II Is desirable to
use mud fluid because OF caving, n
diamond core bit In used, recovering
core. This avoids the danger OF
passing through oil-bearing forma-
tion without knowing II, ns the core
furnishes an accurate record, even
though the oil might not he detected
otherwise when using mud fluid.
on holes between two and three
thousand feet In depth. n rotary or
standard rig will weigh from 1873 900
70 100000 pounds, depending upon
the amount of casing. A diamond
urill or the same capacity will weigh
rom $4,000 to $4,000 pounds. The
uitterencc is due TO the fact that a
diamond drill can bore n smaller
hole and use smaller casing than
other drills and can dril to greater
depths without casing frequently, A
mole drilled with standard tools
must be started large to provide
iof casing whenever water is en-
countered, as the tools do not oper
ate efficiently when there is water
IN the hole, due to the cushioning
effect and friction on tho lines
Holes smaller than about six inches
cannot be drilled efficiently with
cable tools, because OF the decrea SO
IN weight OF the tools. This is the
reason for hole of this size even on
prospect work whore a smaller hole
would suffice, reducing weight and
transportation problems consider
apIy' diamond arm. recovering a
to'e' gives more accurate knowledge
OF undergroI I'D conditions than nom
coring drills regardless OF size.
Il have found that most OF the
companies want 10 not only drill a
mole that will prove tho existence OF
oIl-bearing formation, but take care
or production as we'll, There is a
mistaken idea that tbf production
OF wen is governed by the size OF
pipe' This Is true TO some extent on
oitset wells, where II is desire 10
get the maximum flush production,
nut otherwise a small casing will
give the same results, without the
danger OF drawing in sand or salt
water, Gas pressures are maintained
ioI longer period. and net results |
over long period will be about the |
same. on some wells | have seen |
an eight-inch casing with a four |
men flow line on the surface. As
the casing Is simply an extension OF |
me ilow line TO the surface OF sup |
Ply there Is no advantage In using |
q casing larger than the flow line in |
a flowing well and there is no object |
IN having the casing lareer ,6an
necessary to take care OF the pump |
In pumping well.
A four-inch pipe with high pres
sure such as is encountered in some |
OF the fields, Will take care OF from
S,uvo ,. 20 $4,000 barrels of oil n day. |
Engineers are now beginning 10
rtaiize that 1t is not the size of cas-
ing out the porosity OF rock, size OF |
enannels, pressure and quantity OF
o,, az the point OF contact that de-
,ermines the flow, A well drilled
py diamond drill in ooa 80 az.