The Daily Ardmoreite. [volume] (Ardmore, Okla.) 1893-current, 1917-11-08

a manner as to prevent the passage
OF water without use Of cement.
Water string Is the casing placed In
the well primarily for the purpose OF
preventing water from migrating from
It's original position to other strata.
Top water Is the water found in
strata lying above the productive oil
formation.
Bottom water is the water lying be-
low the productive oil formation.
intermediate water is the water found
! In strata between two or more pro-
ductive formations.
Edge water Is the water found in
sand which also contains oil at a
| higher elevation, or, in other words,
farther up the dip. Infltration OF any
of the above waters Is likely to occur
| II improperly handled.
| The remedy Is to first determine as
far as possible what the conditions are.
Like all other engineering problems,
this Is a subject demanding knowl-
edge OF all pertinent facts which should
be possessed by men experienced in the
drilling and operating of oil wells.
In self defense there should be CO.
operation of oil operators. especially In
keeping accurate logs of each well drill
ed There should be complete record
or log of each WE'LL giving in detail,
each and every step taken In its CON
struction and repairs, as well as the
location and thickness of all strata pen
! etrated, so far as can be determined,
and a record from day to day, showing
amounts of oil and water produced by
each well.
/ Millions are spent each year drill
ing oil wells. In other lines of business
an accurate inventory would show eX'
actly what had been obtained in re-
turn for the outlay. Many oil men
spend their development funds and have
nothing or little in the way of records
TO show them whether the work has
been done properly or economically and
in many cases, with a disregard OF the
stratigraphy or geology, which is vital
| to an understanding of oil problems, in
cluding water troubles and their rem
edy.
The first step in keeping proper logs
is TO see that the operation of the drill
| ing crew are completely written down
each and every hour or shift. There
are several blank forms in use, a con
venient means of making these daily
records. Many printers can supply the
forms. One of the handiest methods OF
keeping these daily drilling reports is
to have them bound in book form, one
page for each hour. A carbon copy oi
each page should be made then prompt
| ly removed from the book and filed in
| a safe place because the original book
| is subject to loss or easily becomes
soiled and illegible. The daily drilling
report shows the depth of the well a,
the beginning, and also at the end OF
the tour, what sort of work the crew
have engaged in, the size, weight and
amount of casing put in or taken out
1t also records the depth at which
there were changes in formation, de
scribes or names the formation anc
| states what evidence there was to in
dicate the presence of Oil gas, or water
in the well.
Some operators make the daily re
port serve as a time card in computing
the pay of the crew.
Will say in closing that to protec
the oil fields against infitratinG water
depends upon full and complete log:
of wells drilled.
Yours respectfully,
i VIM. MCLAUGHLIN.
Mgr. University Biologists Association