FISHING TOOLS

TYPES OF FISHING TOOLS

• TUBULAR CATCHING TOOLS – EXTERNAL / INTERNAL

• JUNK CATCHING TOOLS

• DRILLING, MILLING & CUTTING TOOLS

• ACCESSORY TOOLS

• REPAIR & REMEDIAL TOOLS

TUBULAR CATCHING TOOLS

EXTERNAL INTERNAL

POSITIVE NON-POSITIVE POSITIVE NON-POSITIVE

OVERSHOT DIE COLLAR SPEAR TAP

OVERSHOT

• STRONGEST OUTSIDE CATCH FISHING TOOL.

• IT PACKS OFF THE FISH, PULLS & JARS A FISH.

• EASILY ENGAGE ABLE AND DISENGAGE ABLE.

• STRING SHOT & FREE POINT CAN BE RUN.

• CONSIST OF TOP SUB, BOWL & GUIDE.

• IF THE FISH DIA. IS NEAR THE MAX. CATCH SIZE OF THE OS A SPIRAL GRAPPLE, SPIRAL GRAPPLE CONTROL AND ‘A ‘ TYPE PACKER IS USED.

• TOLERANCE IS -3/32” TO + 1/32”.

• THE PACKER SEALS THE FISH EXTERNALLY. THE GRAPPLE GRIPS THE FISH & THE CONTROL LOCKS THE GRAPPLE AS IT MOVES UP/DOWN.

• FOR ENGAGING THE FISH THE OS IS ROTATED TO THE RIGHT AND LOWERED.

• FOR DISENGAGING, BUMP DOWN THEN WHILE ROTATING TO THE RIGHT, SLOWLY PICK UP.

OVER SHOT

• IF DIAMETER OF FISH IS CONSIDERABLY LESS THAN THE MAX. CATCH SIZE (USUALLY LESS THAN ½”) A BASKET GRAPPLE, BASKET GRAPPLE CONTROL & ‘R’ TYPE PACKER IS USED.

• THE PACKER IS FITTED ON THE CONTROL WHEN BASKET GRAPPLE IS USED.

• BOTH PLAIN & MILL CONTROL CAN BE USED WITH BASKET GRAPPLE.

• WHEN USING A BASKET GRAPPLE EVERY TIME THE GRAPPLE IS CHANGED THE CONTROL HAS TO BE CHANGED.

• TOLERANCE IS -3/32” TO + 1/32”.

• IN PLACE OF STANDARD LIPPED GUIDE AN OVER SIZE GUIDE OR A WALL HOOK GUIDE CAN BE USED.

• IF THE TOP OF THE FISH IS UNENGAGEABLE, AN EXTENSION SUB IS FITTED AT THE UPPER END.

• LOCK RINGS CAN BE BETWEEN THE TOP SUB & BOWL TO PREVENT BACK OFF FROM THE TOP SUB / BOWL OF OS.

OVERSHOT ASSESSORIES

Lock Ring

Wall Hook Guide

Extension Sub

Over Size Guide Mill Guide

DIE COLLAR

• THE GUIDE ON THE DIE COLLAR CAN BE INTEGRAL OR THREADED LIPPED SO THAT OVER SIZE OR MILL GUIDE CAN BE RUN

• ON THE INSIDE OF THE DIE COLLAR IS FURNISHED WITH WICKERS SO THAT THE TOOL CAN WITHSTAND A GREATER PULL.

• THE THREADS HAVE SHARP CUTTING EDGES WHICH ARE CASE HARDENED TO ENSURE EASY & DEEP ENGAGEMENT

• WICKERS CAN BE PLAIN WATER TIGHT OR WITH FLUITES

• LENGTH OF WICKER IS NORMALLY 24” OR MORE & TAPER PER FEET IS USUALLY ¾”

• THE MAX. ID SHOULD BE ½’ MORE THAN THE FISH OD & MIN. ID SHOULD BE ½’ LESS THAN THE FISH OD.

• ENGAGE THE FISH WITH 1-2T WEIGHT AND ROTATE.

SPEAR

• CAN BE EASILY ENGAGED & DIS-ENGAGED

• CONSIST OF A MANDREL ON WHICH A GRAPPLE, RELEASE RING AND RELEASE NUT ARE FITTED

• TAPERED LEFT HAND HELIX IS CUT ON THE MANDREL BODY

• THE GRAPPLE IS ONE PIECE AND HAS INTERNAL THREADS MATCHING THE MANDREL.

• THE TANG (LOCK) OF THE GRAPPLE RESTS AGAINST A STOP ON THE MANDREL.

• TO ENGAE THE FISH LOWER THE SPEAR IS LOWERED WITH GRAPPLE IN THE LOWER MOST POSITION.

• WHEN THE SPEAR HAS ENTERED INTO THE FISH, ONE FULL LEFT TURN ROTATION IS TAKEN

• A PULL NOW SHALL ENGAGE THE FISH.

• TO RELEASE THE FROM THE FISH SPEAR IS BUMPED DOWN AND ROTATED 2-3 TURNS TO THE RIGHT

• STRAIGHT PULL NOW WILL FREE THE SPEAR

TAPER TAP

• TYPE OF ENGAGEMENT IS SIMILAR AS DIE COLLAR

• TAP CAN BE PLAIN OR GUIDED, WICKERS CAN BE FLUTED OR NON FLUTED

• LENGTH OF WICKERS CAN VERY FROM 24” TO 48”. TPF IS NORMALLY ¾” BUT NEVER MORE THAN 1”

• MIN WICKER OD SHOULD BE 1/8” LESS THAN THE FISH ID. AND LARGER WICKER OD SHOULD BE AT LEAST ½” LARGER THAN FISH ID

• THE FISH IS ENGAGED WITH 1-2T WEIGHT AND ROTATION TO EMBED THE TAPERED THREAD

• IT IS NON POSITIVE TOOL & CANNOT BE DISENGAGED

REVERSE CIRCULATION JUNK BASKET

• RCJB IS USED TO RECOVER JUNK LIKE BIT ROLLERS, BIT BEARING & OTHER SMALL PIECES LIKE TONG DIES, HAND TOOLS, ETC.

• THE REVERSE CIRCULATION HELPS TO DEFLECT SMALL PIECES OF JUNK INTO THE CATCHER.

• THE ASSEMBLY CONSISTS OF A TOP SUB, BOWL, JUNK CATCHER, VALVE ASSEMBLY AND SHOE.

• THE REVERSE CIRC. IS MADE POSSIBLE BY THE HOLLOW BARREL.

• WHEN THE BALL IS SEATED IN THE VALVE SEAT, THE MUD PASSES THROUGH THE INNER BARREL AND EXITS IN THE ANNULUS AT LOWER END OF BARREL

• MUD FLOW THEN ENTERS INSIDE THE BARREL AND EXITS IN THE ANNULUS AT THE UPPER END OF THE BARREL.

• THE SHOE CAN BE ‘A’ TYPE WITH SIDE WINGS.

• ‘B’ TYPE IS SIMILAR TO ‘A’ TYPE EXCEPT THAT IT IS HARD FACED WITH ITCOLY.

• ‘C’ TYPE SHOE IS DRESSED WITH HARD FACING ITCOLY ON THE BOTTOM, INNER & OUTER FACE.

• FINGER TYPE SHOE IS USED TO RETRIEVE LOOSE JUNK LYING AT THE BOTTOM.

• SHOE SELECTION DEPENDS UPON WHETHER THE JUNK IS EMBEDDED IN SOFT-MEDIUM FORMATION OR LYING LOOSE AT THE BOTTOM IN HARD FORMATION

• ITCOLOY FACED SHOES LIKE “B” & ‘C’ WILL ASSIST IN REMOVAL OF EXCESS PROTRUDING METAL TO ALLOW ENTRY INTO THE BARREL.

• BEFORE LOWERING THE CONDITION OF THE SHOE AND THE CATCHER SHOULD BE CHECKED ASSEMBLING THE RCJB.

• FOR DOWNHOLE OPERATION RCJB IS RUN TO BOTTOM, CIRCULATION IA CARRIED OUT & BALL IS DROPPED AFTER OPRNING KELLY

• AS THE REVERSE CIRCULATION IS ESTABLISHED THE STRING. IS LOWERED AND CORE IS CUT TO RECOVER JUNK.

FISHING MAGNET

• SMALL ODD SHAPED MAGNETIC JUNK, SUCH AS BIT ROLLERS BEARINGS, DIES, TONG PIN, HAMMERS, ETC CAN BE RETRIEVED BY MAGNETS.

• MAGNETS ARE AVAILABLE IN SIZES 1” TO 20; WITH A PIN UP CONNECTION. SELECT OD ABOUT ¼” TO 1’ LESS THAN HOLE SIZE

• THEY CAN BE RUN ON DRILL STRING OR WIRE LINE.

• THE FORCE OF ATTRACTION CAN VARY FROM 5LBS TO 3000 LBS DEPENDING ON SIZE.

• ONLY THE BOTTOM OF THE TOOL IS MAGNETIZED.

• THE STANDARD GUIDE IS FLUSH TYPE ALTHOUGH LIP GUIDE & MILL GUIDE ARE ALSO AVAILABLE.

• OPERATION:

RIH TO APPROX. 30 FT. ABOVE BOTTOM. CIRCULATE & REAM TO BOTTOM TO WASH FILL, IF ANY.

SLACK OFF LITTLE WHILE ROTATING A FEW ROUNDS, ROTARY WILL SLAP A LITTLE. SET 2000-3000 LBS WEIGHT ON MAGNET. STOP CIRCULATION, POOH, DO NOT ROTATE

JUNK SUB (BOOT BASKET)

• RUN ABOVE THE BIT OR MILLING TOOLS TO COLLECT SMALL PIECES OF JUNK TOO HEAVY TO BE CIRCULATED OUT. CAN ALSO BE RUN ON MAGNETS

• THE CUP IN WHICH THE JUNK IS COLLECTED IS SUPPORTED BY RIBS WELDED TO THE MAIN BODY.

• THE RIBS SUPPORT THE CUP AND PREVENT THE CUP FROM GETTING CRUSHED.

• IN ORDER TO COLLECT JUNK IN THE JUNK SUB THE PUMP IS STOPPED AS THE STRING IS LIFTED UP.

• THE HEAVY METAL JUNK FALLS DOWN INTO THE CUP DUE TO TURBULANCE IN THE HOLE & CAN BE RETRIEVED ONCE THE ASSEMBLY IS POOH.

MILLING TOOLS

• MILLING TOOLS ARE USED TO MILL AWAY METAL OBJECTS THAT CANNOT BE RETRIEVED BY GRAPPLING TOOLS OR JUNK BASKETS.

• THE DESIGN OF THE BLADES OF THE JUNK MILL HOLDS THE JUNK TO BE MILLED BELOW THE MILLING FACE.

• THE OD OF THE MILL SHOULD BE 1/8” TO ¼” LESS THAN THE HOLE ID. FLAT BOTTOM SHALL BE PREFERRED FOR LOOSE JUNK

• TAPER MILLS ARE USED TO MILL RESTORE INTERNAL ID OF COLLAPSED PIPE OR TO REMOVE RESTRICTIONS IN THE CASING

• MILL SHOES ARE USED TO MILL ON BOTTOM, INSIDE AND/OR OUTSIDE

• THE BASIC MILLING PARAMETERS ARE HIGH FLOW RATE WITH HIGH MUD VISCOSITY (50-80 CENTIPOISE & YIELD POINT OF 30+).

• SELECTION OF OPTIMUM MILLING WT. WILL DEPEND ON FIELD CONDITIONS. THUMB RULE IS 1000 LBS PER INCH OD OF MILL

• WEIGHT ON MILL AFFECT SHAPE OF CUTTINGS, THE MOST DESIREABLE BEING SMALL CURLED CHIPS FOR EASY REMOVAL

• WEIGHT & RPM COMBINATION SHALL BE SUCH THAT SURFACE SPEED SHALL BE 150 TO 200 FPM

IMPRESSION BLOCK

• CONSISTS OF A SOFT INSERT IN THE LOWER END OF A STEEL HOUSING.

• THEY ENABLE THE FISHING PERSONNEL TO DETERMINE THE EXACT CONFIGURATION OF THE FISH TOP AND TO LOCATE ITS POSITION IN THE WELL BORE.

• IT RUN AT THE BOTTOM OF THE FISHING STRING & WHEN THE TOOL COMES IN CONTACT WITH THE FISH THE WT. OF THE STRING IS FURTHER LOWERED WITHOUT ROTATION.

• THE FISH INDENTS INTO THE SOFT LEAD.

• THE SHAPE AND SIZE OF THE MARK ON THE IMPRESSION BLOCK REVEALS THE CONDITION OF THE FISH.

• IMPRESSION BLOCKS CAN BE A SOLID BLOCK. OR ONE WHICH HAS A WATER COURSE THROUGH IT. THE WATER COURSE HELPS TO CLEAN THE TOP OF THE FISH TO GET A BETTER IMPRESSION.