Surface Machinery and Methods for Oil-Well Pumping

POWER-TRANSMITTING MACHINERY.

71

a wrist pin of large diameter and a correspondingly large opening in
the disk.
This type of power may be either small and of light construction
to pump a few shallow wells, or large and of heavy construction to
pump a larger number of deep wells. One of the largest, strongest,
and best built powers the writer has seen in operation is of this type.
Five or six years ago the Producers Oil Co., Houston, Tex., de-
signed this power to handle deep production at some of its properties
in the Texas oil fields, using the maximum stroke required without
multiplying. One of the oil-well supply companies is now manu-
facturing this power with modifications as to length of crank-arm
stroke to meet the requirements at any property. The three lengths
of crank-arm stroke, 20 inches, 32 inches, and 38 inches, should ordi-
narily eliminate the need of multiplying to obtain increased length
of stroke.
Several deep-well powers of this type are used in the Humble oil
field, Texas. Each is direct connected to a 55-horsepower oil engine,
to avoid the use of a belt, uses the 38-inch crank-arm stroke, and
pumps 16 or 17 wells of an average depth of 3,500 feet. The chief
engineer of the company using these powers says that one has worked
nine months and another six months without a shutdown. The cost
of this deep-well power with buildings and equipment, installed
several years ago, is shown in Table 6.
TABLE 6.-Cost of deep-well power, building, and equipment, near Houston, Tex.

Galvanized, corrugated iron building.
Original building (walls and roof)..... .............----------------------- $254. 88
C oncrete pit....... -.. . ....__ ...... .......... .... ... .. 309. 00
Addition to rear (walls and roof) -------------------------171. 36
C oncrete pit in addition -..................................... 208.00
Addition to front of building (walls and roof) ---------------- 36. 36
Concrete foundation for above addition___ ___ _... __..._ 7. 40
Addition to side of building (walls and roof) ----------------- 49. 14
Concrete foundation for above___ -____ ----____ ----__ -_ . .9. 80
Concrete pit in above addition...................---------------------------. 32. 75
1, 078. 69
One 55-horsepower oil engine_ - _-------------------------- 3, 227. 00
Concrete foundation under engine block ...........------------------- 120. 00
Concrete block under engine .....-_-_-_.............-. ..__. 23. 33
Deep-well power with countershaft, etc-------------_,_ 2, 839. 86
Concrete foundation under power .____________________________ 471. 20
Concrete foundations under cut-off coupling with above power. 44. 40
Two concrete blocks under cut-off 4. 00
One Goulds No. 2 rotary pump____________________________ 113. 25
Two 50-barrel Donovan steel tanks__ -___- .. __........... ___ 130. 00
Two platforms for tanks____ ... ______...................__ 101. 42
7, 074. 46
Sucker rods (250 feet) used as hook-off rods ------------------ 28. 55
Miscellaneous connections----.....--- . ----- . ______ _ 67. 02
Pipe and fittings______................__.......................... 241. 43
337. 00
Total..........................................---------------------------------------. 8, 490. 15

Dimensions.
16 by 22 feet by 9 feet.
16 by 22 feet by 3 feet 6 inches.
14 by 20 feet by 9 feet.
14 by 20 feet by 2 feet.
4 by 5 feet by 9 feet.
5 by 7 feet by 9 feet.
4 by 5 feet by 3 feet 6 inches.
3 by 9 feet by 6 feet.
3 by 9 feet by 14 inches.
9 by 10 feet.
3 by 5 feet by 4 feet.
14 by 36 by 12 inches (base).
14 by 30 by 12 inches (top).

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 January 27, 2015.