The Morning Tulsa daily world. [volume] (Tulsa, Okla.) 1919-1927, 1921-11-20
In the Oil Fields


CONTINUED FHoN PRECEDING FACE.
the great perOgity ~ the Tesrryoi
rock and the tremendous pressure
eHertcd by the salt water upon the
oil This condition also explains the
reason why these Mexican wells go
90 salt water 80 rapidly when acre
age is drilled too thlckiy One well
Will drain as much territory ~ n
score or more. due to the possibility
~ free migration Of the oil in tho
network of caves and crcvices. and
therefore, congosted drilling invari.
ably results in rapid salt water eu
croaohment. Amatian ~ a glowing
example of this.
All Of the above named fields with
the exception of Ccrro Azui, Toteco
and Terra Blanca, have suffered
salt wHtcr invasion and what littie
oil IL being obtained IN these salt
water pools is being produced by
Keeping back pressure on the wells
and stripping them. Totcco and
CDrrO AZul should produce great
amount OF oil set. hut salt water en-
croachmcnt IN the pools cannot be
go very FAR away
orr this main zone Of big produc-
ton llos several smaller Isolated
pools which do not amount to =
and TERRA Amarillo.
Tho next oii producing area Of
importance In Mexico is that gencr-
ally referred 90 as the panuco dis
trriot This lies about 20 miles
aouthwcFi ~ THmpico adjacent 10
tho Innuco river. with a few seat.
tered wells north Of the Panuco river
between it and the TamcEi river. The
two fields furnishing the largest pro-
duction in this area are known re-
speCtivcly as the Tanuco and Topill
nolda on the panuco river. while
small production has been obtained
north and northwest from these two
folds from Ebano. Chijol and Los
Estoras. The oil here is heavier
than la tho south fields. and the
wells are smaller. due To the great
dltferCBtial erosion which the pro-
ducing horizon has suffered in this
old valley OF the panuco and Tam
csi. These above two districts to
gcther with the small producing area
AZ F1urhcro, south OF Cazone8 river
arc all situated IN what Is known as
the TampicO embay ment. This lies
on the cast coast nf Mexico between
Barra Nantla on the south. the Sot1
Ia Marina river on the north and
extends westward to the outcrop OF
large wells which produce from tho
porous lime will quite likely he CON
fined To the zone already mentioned.
Thls znne extends from Dos Rocas
to Alamo, as different sub-surface
conditions exists north and south OF
this zone. within the embayment.
South OF the Tampico embayment
area no production will likely he OBJ
tanned until the lsthmus OF Tehuan-
tcpec Is reached. on and near the
east coast OF which should -be OBJ
talned production from structures
where true sand. conditions exist. ana
from on and adjacent to salt domes.
North Of said embayment, oil. II
found. will he in structure such ~
exist in oklahoma and Texas. with
the exception OF that belt Of country
about go miles wide which hcs north
~ Sofa 10 Marina river and parallel
20 the guN OF Mexico. Here similar
conditions exist as in the gulf coastal
region of south Texas and Louisi-
ana. and salt domcs must be found
before oil can be obtained.
MY Bostick spent three months
the first part OF this year In the
lsthmus Of Tehuantepec region re.
turning via Tampico. Monterey and
Brownsville and his description OF
tropical verdure. dense forests, wild
animals and bird life IL truly inter
csting. His company has large hold ..
ings In Mexico which ncccssitates
making frequent trips .there, and as
he has been all over the tropical rs
well as the mountainous regions Of
Mexico. he Is In n position to Offer
some very interesting data regarding
this southern neighbor.