SCIENTIFIC - OIL-DRILLING EQUIPMENT

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP80-00809A000600250564-8
• Release Decision: RIPPUB
• Original Classification: C
• Document Page Count: 3
• Document Creation Date: December 22, 2016
• Document Release Date: July 6, 2011
• Sequence Number: 564
• Publication Date: September 21, 1949
• Content Type: REPORT

Sanitized Copy Approved for Release 2011/07/06: CIA-RDP80-00809A000600250564-8
CLASSIFICf-")N CONFIDEN'I'uLCONFi~
CENTRAL INTELLIGENI;E AGENCY REPORT
INFORMATION FROM
FOREIGN DOCUMENTS OR RADIO BROADCASTS CD NO.
COUNTRY USER
SUBJECT Scientific - Oil-drilling equipment
NOW
PUBLISHED Monti y periodical
WHERE
PUBLISHED Moscow
DATE
PUBLISHED Oct 1948
LANGUAGE Russian
r."- N!RIN! INIO[*AMON !FR[TIIN "[ NRTONRL D[!!N!N
ue 0F^!fOUNN RR !o
n TTWNSYI!SION YNRYTOOli[s! ![WON IFNR[D !T LR11. N[INDl*ciiOi OF TNU 1011 tl T90NIN-O.
DATE OF
INFORMATION 1948
DATE MST. 4Sep 1949
NO. OF PAGES 3
SUPPLEMENT TO
REPORT NO.
THIS IS UNEVALUATED INFORMATION
Energeticheskiy Byulleen', No 10, l9L1 . (FOR Per Abe 30/49290 --
Infotmation requested.)
ELECTRIC-DRIVE SYSTEM FOR R:7Itr,: " EBINE DRILLING
G. Kogan and N. Tikhomirov
Molotov Petroleum Trust
The expenditure of electrical energy and the power factor during drilling depend
as much on a properly selected and supervised technological system of drilling as on
the choir,s of an efficient and economical system of electric drives. Various systems
are available, depending on the electrical equipment on hand.
Certain of these, clearly inefficient in energy utilization, must be employed be-
cause of the lack of essential equipment and the necess:ty of getting along with what
'sappens to be available. For example, runni-g a 2-kilovolt electric pump on a 6-kilovolt
circuit involves the use of additional transformers with capacities of 300 kilovolt-
amperes, 440/2,000 volts or 6/2 kilovolts, which causes complications in setting up and
servicing as well as unprofitable performance because of losses and loading of the
equipment.
The lack of high-power electric motors for mud. pumps necessitates the use of two
motors, 180 kilowatts each, ou one pump which thus sharply ,Increases electrical energy
losses.
Recently, the electric industry has managed to put out new types of electrical
equipmlent for use in drilling: specifically, electric motors of 260, 290, and 360
kilowatts; elec.ric drilling motors of 130 kilowatts, control stations for electric
drill motors of types SB-45 and SB-47, boxes of type YaZhNU-16, mobile electric drilling
substations, and other kinds of equipment.
Because or this equipment, there. are.. poee+ibiUtieu of operating electrical drilling
equipment more efficiently than at present.
At present, a aystem will often be found to have the following shortcomings:
A 6,000/525 volt transformer of 320 kilovolt-amperes mast operate continously
not only during; actual drilling, but also during preparatory and concludin;t Operations,
in order to insura the Plow of a 220-volt current through a 500/220 volt transformer.
CLASS'FiCATION CONFIDENTIAL
CD1FiDENTIAL
+ w NBRB DISTRIBUTIGH
AIR
FBI
A'4 F
l
Sanitized Copy Approved for Release 2011/07/06: CIA-RDP80-00809A000600250564-8
50X1-HUM
 Sanitized Copy Approved for Release 2011/07/06: CIA-RDP80-00809A000600250564-8
J TI AL
CONFIDENTIAL
A 1C/.5 transformer, Type TM, of 10 kilovolt-amperes capacity, is not
sufficient to ensure the operation of a clay mixer, electric lighting, and a motor
pumping water io the individual drills. Actually, a 14.5-kilowatt motor is installed
for the clay-mixers, although the production of 23-kilowatt motors by the Plant imeni
Petrov has been propose.' since 1946.
Between 3 and 4 kilowatts are neelf-I for the illumination of drilling operations.
A 3- to 5-kilowatt motor is needed to pimp ?a-ter. From the foregoing it follows that
the power capacity of the 500/220-volt transformer should not be less than 30 kilovolt-
amperes.
In protecting the drilling-machine transformer with fuses, its aelertirity
is not always ensured; therefore, the cutting off of the transformer may also cut off
the entire feeder. The power needs for all-metal mobile rL illing substations and electric
pumps have not yet been corked out. Such a system may be justified in rotary drilling,
where the clay-pump motor and the winch-motor both run during drilling.
:Tn turbine drilling the electric winch motors rail', only during raiain3 ant lowerin;;
operations.
Ja4a oil drillin -machine transformer loads during in entire well-drilling operation
were obtained in a time test on the turbine-drilling of a well at the Kraenokansk oil
fields:
The average load of the drilling-machines transformer was small, while during
actual drilling the transformer carried almost no load--a waste of its cspacit be-
cause of intermittent running. It also became apparent that turbine-drilling (for a
given well) consumed 73.5 hours; th_ operations the. placed a load on the ?leetric-
drill motors consumed 828 hours; getting ready for operations and preparing the clay
took 244 hours.
In seeking more dependable operation during the rapid drilling of inclined wells,
it has recently been proposed that the column of the shaft be rotated more frequently,
specifically, for 10 minutes every half hour. This additional work would greatly in-
.rease the need for a power transformer; with one, the entire drilling operation (for
the well under consideration) would take 536 hours.
The time consumed in sinking a well by turbine drilling is divided as follows:
(1) time during which the transformer is completely shut off, 31 percent; (2) time
during the drilling of the well when the transformer is turned on., 55.4 percent; and
(3) time consupaeN. by auxiliary operations, 13.6 percent.
The elimination of no-load Idling in the drilling machine 'a transformer would
considerably decrease the expenditure of electrical energy and raise the power factor.
The power lose suffered from the no-load idling of a 320 kilovolt-ampere trans-
former amounts to about 1.89 kilowatts.
A reactive capacity of 6 percent in this transformer amounts to .06X320 or 19.2
kilovolt-ampere,.
The problem of economy in electric energy can be worked out 'through a special
system of grouping electrical turbine drilling equipment, which is *_Yee of the shortcomings
of the present system and which takes into account the crpec1c.l problem of the loading
of the drilling machine's transformer during drilling.
The systems for turbine drilling must ensure the following:
The nueply of current for driving the clay mixer, individual water-supp]~ and
lighting rust come from an independent 6,000/400/220-volt transformer of 30 kilovolt-
amperes capacity, connected in a 6-kilovolt circuit, apart from the transformer for
the drilling motor.
NDyENTIAL
50X1-HUM J
Sanitized Copy Approved for Release 2011/07/06: CIA-RDP80-00809A000600250564-8_jg
 Sanitized Copy Approved for Release 2011/07/06: CIA-RDP80-00809A000600250564-8
hour anr.ing actual drilling, a remote-control switch, connected directly to the site
of drilling operations, should be devised.
The remote-control system should be simple and one that can set up on the spot;
it echould also work instantly and smoothly.
If the load for both drilling and recovery operations is centered in co on radial
feeders, the lack of selectivity resultin, from the use of fusee in the drilling motor's
traneforrx!rs may lead to a stoppage of the seders and loss of recovery. It is there-
fore eXr?Al-A A^ nrt up automatic safeeuarde for the dril.lin substations. The will
be in t e form of the oil circuit-breakers. The remata-control switch should act upon the
oil circuit-breaking mechanism at the b
t
a
aticns.
With the electrical equipment grouped according to this ulam, losses involved in
the use of the drilling machine transformer will be eliminated.- The important
innovation in this plan is the remote-control of the oil circuit-breaking mechanism of
the drilling substation. Generally, the oil circuit-breakers VM-14 and VM-16 are used
for turning the drilling motor's transformer on and off. The operating mechanism
in an automatic box with tone or two maximum-current coils and one neutral coil. The
oil circuit-breaker is ordinarily manually operated with the aid of a wheel.
To effect re';ote-control the kwnd-operated wheel is replaced by a lever ( lag;ous
to en automatic re atin~ switch), one end of whir11 Is secured to the lug of a KAM box,
while a weight of 15-20 kilograms in attached to the other end ~tbe amount of weight
depending on the regulation of the oil-circuit-breaker).
the neutral dril1er driller at causing is station presses the "stop" button, which breaks the circuit of
ithe oil circuit-breaker to open.
When the lever >,adth the weight is raised from its lowest position until the winding
dog of 'he ::AM box contacts the arm of the drum, the lever with the weight is again
lowered, closing the oil circuit-breaker.
The weight is raised by an electric motor, which is ecjuipped with an elastic friction
clutch. A cable is secured to one end of the clutch, passed through a pulley, and
fastened to the end of the weighted lever.
The motor is turned on by pressing the "start" button which is also located at
the drillers' working station.
The operation of the electric motor in raising the weighted lever is governed by
the terminal cut-off switch, which turns off the current on pressure of contact from
the lever. Then, as the motor slows down, the fttction clutch is released, 'snd th"
weighted ~ descends, closing the oil circuit-breaker.
The terminal cut-off is so arranged that it cuts off the current (when under pressure
from the contacting lever) at the very moment that the winding-dog contacts the arm of
the drum, thus ensuring the desired connection.
If the RBA drive, consisting of two maximum-current coils and one neutral coil,
in used, the remote control syste:i is not changed. The driving arm acts directly on
the starting arm, while the weight, which is somewhat less, serves only for returning
the driving lever to the initial position and for making contact.
The system described above is in operation at MolotoTneft' where it has speeded ff'
the work reraire' setting-up electric chilling equipment. The prop.:ged remote-
control system for operating the oil circuit,-b,reerar of the drilling-%L,,.or'a trans-
former has been tested.in experiments. Since it is so simple and the parts so easily
obtainable, it can be installed with the means atrailable at any drilli.nrt location.
Sanitized Copy Approved for Release 2011/07/06: CIA-RDP80-00809A000600250564-8