Specifications

BLOW OUT PREVENTER
and ROD STRIPPER
2853 Cherry Avenue
Signal Hill, CA 90755
Ph: [phone]
Fax: [phone]
The combination Blowout Preventer and Sucker Rod Stripper combines safety and economy in a tool designed to perform the
necessary function of line wiping. It can be operated from anywhere on the derrick floor utilizing pressure from bottled nitrogen,
an optional hand operated hydraulic pump, or the optional BOP control system (Fig. 1C). When this tool is employed of wire line
operations, a CAVINS Ball Lock Oil Saver is screwed directly into the top of the Blowout Preventer. When swabbing, a short lubri-
cator the length of the swab between the master gate and the Blowout Preventer is all that is required. The Blowout Preventer is
available in either the 3" size with full 3" ID clearance and 4" female. A.P.I. line pipe for the Ball Lock Oil Saver on top or the 4"
size with full 4" ID clearance and 4" female A.P.I. line pipe threads top and bottom. Pressure connection is for 1/4" A.P.I. pipe. The
units are tested to give full closure up to 3000 psi well pressure with no leakage. The full closure feature of the Blowout Preventer
will give a temporary seal, allowing ample time to close the master gate should a well blowout occur.
As a Sucker Rod Wiper, the unit affords exceptionally long wiping service and complete control of the well against possible
leakage or blowout. The rubber wiping unit is comparatively inexpensive and very easy to change.
B O P CONTROL SYSTEM
The BOP Control System provides the hydraulic power
and controls necessary to operate the Cavins Blow Out
Preventer and Rod Stripper during work-over operations
(Fig. 1C). Due to its compact design, the unit takes up little
space and also stores all accessories, controls and BOP
equipment. The BOP accumulator is powered by rig air (26
CFM @ 100 PSI) to charge and maintain pressure stored in
the system. The accumulator provides 3000 PSI + to the
BOP, which gives an immediate closure or it can be manu-
ally operated by a 2 stage hand pump for stripping opera-
tions. The BOP Control System can be configured a variety
of ways depending on what accessories or options are
required by the customer.
28
OIL WELL TOOLS
Fig. 1C
Fig. 1A
Blowout Preventer
Model S-BP50-A (3" I.D.)
Fig. 1B
Blowout Preventer
Model S-BP50-B (4" I.D.)
S-BP100