Specifications

CAVINS HYDROSTATIC BAILER
Telescoping Valve Section Type
2853 Cherry Avenue
Signal Hill, CA 90755
Ph: [phone]
Fax: [phone]
(Fig. 1) (Fig. 2) (Fig. 3)
JUNK BASKETS (Fig. 1)
Cavins Junk Baskets are used with
the Cavins Automatic Hydraulic Suction
Bailer and Fishing Tool for fishing out
movable objects that are too large to
enter the regular bailer bottom. Such
Junk Baskets are extremely successful
in recovering rock bit cones and cutters,
blades from drag bits, pipe slivers, drilled
up cement retainers and bridging
plugs,
tubing collars, packer rubbers, etc.
SKEETER BILL (Fig. 2)
Used with the Cavins Automatic
Hydraulic Suction Bailer for cleaning out
around and inside of stuck fish, such as
gas anchors, tubing, etc., preparatory to
fishing with a socket or spear; also to
clean out around other fish which cannot
be recovered, but which may be chased
to bottom in this manner.
It consists of a sub for attaching to
bailer bottom, and a small O.D. thick-
walled, seamless tubular extension up to
20 feet long. Available in both straight
and off-set types. In the latter type, the
off-set is not carried beyond the bailer
O.D. (not shown) unless so specified.
When ordering, specify type desired,
length of extension, and size of bailer on
which it is to be run.
BY-PASS VALVE (Fig. 3)
This device is subbed between the
bailer bottom and the Junk Basket. It per-
mits the well fluid to by-pass up through
the Junk Basket, thus permitting the bail-
er assembly to descend to bottom freely
and without interruption. For use espe-
cially with larger size of Junk Baskets
where the clearance between the O.D. of
the basket and the I.D. of the well bore,
or casing, is restricted.
Run on wire line on any type of
hoisting rig.
This outstanding Bailer utilizes the
fluid column (500 ft. min.) standing in the
well to create the hydraulic energy
required for its operation. It is the most
efficient tool for breaking hard packed
sandbridges in Casing and Tubing, fish-
ing out all types of movable junk, clean-
ing out through collapsed pipe, etc. The
CAVINS Junk Basket can be attached to
the bottom of the Bailer for fishing out
movable objects too large to enter the
Regular Bailer Bottom. The Junk Baskets
are extremely successful in recovering
Rock Bit Cones, Cutter Blades from Drag
Bits, Pipe Slivers, drilled up Cement
Retainers, Bridging Plugs, Tubing
Couplings, Packer Rubbers, etc. It will
efficiently flush the perforations.
The CAVINS Hydrostatic Suction
Bailer consists of a Jar Section, a
Suction Chamber, a Telescoping Valve
Section and a Load Chamber. It can be
run on any size wire line and with any
type of hoisting rig. The creation of a
Pressure Differential is accomplished by
the submergence of the Bailer with the
Suction Chamber filling with air at atmos-
pheric pressure. When the tool comes to
rest at the bottom, the weight of the
Suction Chamber Tube and the Jar
Section, which are all located above the
Telescoping Valve Section, opens the
Valve Section and exposes the Atmos-
pheric Pressure in the Suction Chamber
to the greater pressure in the Fluid
Column. This fluid rushes into the empty
Suction Chamber Tube with sufficient
velocity to carry everything with it
which is at or near the Bailer Bottom.
The CAVINS Multi-Surge
Junk Snatcher is a hydrostatic
multi-action junk fishing tool
which runs on drill pipe or tub-
ing and works on the same
principle as the Hydrostatic
Bailer.
Cavins “Wood Clamp” assem -
blies are supplied with each
Hydrostatic Bailer, as well as
Sand Pumps, to hold the tool
above the well head while it is
being made up or taken apart.
The “Dump Key” is in a spring
loaded housing which can be
securely spiked to the floor to
turn the bottom sleeve assem-
bly to enable the bailer or sand
pump to be emptied of its load.
21
OIL WELL TOOLS
QUICK CHANGE
ROPE SOCKET
VALVE SECTION
ASSEMBLY
Top Connection
Sinker Bar
REIN JAR
ASSEMBLY
LOAD TUBE
ASSEMBLY
SUCTION
CHAMBER
ASSEMBLY
BOTTOM SLEEVE
ASSEMBLY
Lower Sub
Liner Guide
Valve Cap for
Air Leak Test
Relief Valve
Relief Valve Spring
Screw Wrench
Wood Clamp
Assembly
Shoe Complete
With
Adjustable Sleeve
Bottom Dumping Key
(Fig. 4)