Specifications
SPUD GUIDE DRAG MILLING
Fig. 2 Fig. 3 Fig. 4 Fig. 5
“MULTI-SURGE” JUNK SNATCHER
For Recovery of Small Junk in the Well
2853 Cherry Avenue
Signal Hill, CA 90755
Ph: (562) 424-8564
Fax: (562) 595-6174
The Junk Snatcher operates on a pressure-differential principle which permits
repeated high velocity hole-cleaning surges in one run of the pipe. This unique
and efficient multi-Surge Action is obtained without the use of fluid pumps at the sur-
face and with a minimum of manipulation of the fishing string. Complete Junk Basket
Assemblies to accommodate virtually any size hole and fish are available with the
MULTI-SURGE Junk Snatcher. Each lower Junk Basket assembly is threaded to
accommodate the use of the Guide Shoe, or other attachments; to break, shape, or
center junk prior to each surging operation. Each complete surge of the Junk
Snatcher is instantaneous and the operator need only to pick up the fishing string to
ready the tool for repeated operations.
INSTALLATION OF THE CAVINS JUNK SNATCHER
PARTS IN THE DRILL STRING
22
OIL WELL TOOLS
Fig. 1
BOTTOM
SHOES
BOX
BOX
SUB
(KELLY)
PIN
BOX
BOX
TOP
DRILL
PIPE
DRILL
PIPE
MAIN
CONTROL
VALVE
FLOAT
VALVE
FLUID
BY-PASS
VALVE
UPPER
JUNK
BASKET
LOWER
JUNK
BASKET
Fig. 6
CLOSED
Fig. 7
OPEN
PIN
PIN
BOX
BOX
SUB
PIN
SUB
SUB
PIN
PIN
PIN
PIN
BOX
BOX
BOX
PIN
BOX
SUB
BOX
PIN
UPPER
JUNK
BASKET
BY-PASS
VALVE
FLOAT
VALVE
MAIN
VALVE
LARGE
JUNK
BASKET
TYPE OF
SHOE
BOTTOM
DRILL PIPE