Surface Machinery and Methods for Oil-Well Pumping

60 SURFACE MACHINERY AND METHODS FOR OIL-WELL PUMPING.
List of machinery and material, etc.-Continued.
Refer-
ence Amount Machinery and material Classification Plate No.
No.

94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117

160
2
2
3
7
64
6
1
1
1
5
1
1
3
1
1
2
2
6
1
12
40

Feet, No. 14, R. C. solid copper wire___ _.
4 inches by 4 inches by 12 feet, Oregon pine, sur-
faced four sides.
2 inches by 4 inches by 12 feet, Oregon pine, sur-
faced four sides.
1 inch by 4 inches by 18 feet, Oregon pine, sur-
faced four sides.
Guard-rail shoes..................................
2-inch flat-head wood screws ......................
A inch by 4 inch stove bolts.......................
9-inch Star coil spring . ..___ .....................
Pair 6-inch Stanley tee hinges....._......... . ....
} inch by 2 inches by 12 feet, Oregon pine, clear,
surfaced four sides.
} inch by 12 inches by 16 feet, Oregon pine, clear,
surfaced four sides.
6-inch by 36-inch dowel pin stock._.........._..._
Pound furniture glue..............____ __..........
8 by 12 inches by 18 feet, Oregon pine, rough_ _ -
11 inches by 8 inches by 20 inch stirrup. -._______
J inch by variable machine bolts_ - -.- - ---
1 inch by variable hook rod, from old sucker rod_ -
11 inch by 2 foot 3 inch eyebolt _ - -.-- .-----
3 inch by 12 foot jointed tubing or pipe .._-__-_---
4 inch by 2 foot tubing or pipe (no thread) - - _..
Sacks standard cement________ __.__..........
Cubic yard sand and gravel.....- _ _---------
Pieces * inch by 1 foot 10 inches, old sucker rod, for
reinforcement.
Board feet of scrap lumber _ .__ _ _ _ _ _ _ _

COUNTERBALANCE FOR BEAM PUMPING.
With the introduction of electric power for pumping oil wells,
balanced load has received more attention and marked saving of
power has resulted. By meter readings it is possible to determine
exactly the amount of power needed to operate each well pumping
on the beam. The counterbalance, however, has been used for years
in the oil fields of the East, not to save power but to insure a balanced
load and thus obtain a smoother stroke at the polish rod. With
steam engine or gas engine drive there is sometimes a tendency, if
the load is unbalanced, to pick up the rods with a jerk. A counter-
balance eliminates much of this trouble. With motor drive and
unbalanced load the motor is liable to heat. At several wells'4 pump-
ing oil of 260 B. by electricity from depths of about 3,600 feet (fluid
levels of 2,800 feet) motors of 20 to 50 horsepower run without coun-
terbalance heated to temperatures of 180 to 190 F. With counterbal-
z' W. L. Boles of the Coalinga Mohaw Qil Co.

Power equipment-
electrical.
Guard rail..-----
.....do-- ..........
.....do.....--------
.....do . ..-------
-.....do .-----------
- ...do....... .....--
.....do------ - - - - ..-
.....do..............d
Safety mat-.......
.....do_ ......-- ---
-----do_-_- ....
do......-do ........
Counter balance - --
--... do ... .-_-_ -
-....do.... ....-------
- ----do---
--_-do - - ......-
.....do ....-.....--
_----do ..-----_-----
__do.- ......_-
-... do.... .
.....do...
. ...do ..... . . ....

X, E.
X, A, and
XI, F.
XI, F.
Do.
Do.
XI, B.
Do.
Do
Do.
Do.
Do.
Do.
XI, B.
Do.

George, H. C. Surface Machinery and Methods for Oil-Well Pumping. Washington D.C.. UNT Digital Library. http://digital.library.unt.edu/ark:/67531/metadc12407/. Accessed August 29, 2014.