Technical Manual: 4.62" X 4.62" Big Bore, Single Set Packer Rotational Release
Technical Manual: 4.62" X 4.62" Big Bore, Single Set Packer Rotational Release
www.worldoiltools.com
4.62” X 4.62" Big Bore, Single Set Packer
Rotational Release
Table of Contents
Description ..................................................................................................................... 3
General ................................................................................................................................... 3
Features .................................................................................................................................. 3
Applications ............................................................................................................................ 4
Specifications ................................................................................................................ 6
D IMENSIONAL .......................................................................................................................... 6
Bill of Materials.......................................................................................................... 13
Description
G ENERAL
The Single Set Packer is used for isolating zones in open-hole or in
casing. The tool is retrievable and may be used for testing, treating,
production, or injection. The Single Set, Rotational Release Packer may
be used in vertical or deviated wells.
Inflatable packers elements for this tool are 1.68m. (66.25 Inches) in
length. High strength aircraft cable is used to provide good expansion
characteristics in washed out or irregular well bores, as well as to
provide high differential pressure capabilities. Cable reinforcement
allows these inflatable packer elements to return very close to the
original run-in diameter. In addition, these elements are less likely to
lose rubber down hole because superior bonding occurs between the
rubber and cable.
F EATURES
Inflatable Packer Elements provide greater clearance through
restrictions in a well.
Tool requires rotation for release.
A cable-reinforced packer element provides superior bonding of
rubber to cable, and therefore less rubber is likely to be lost
downhole.
The system allows pressure to be fully equalized across the packer
element prior to unsetting the packer. This minimizes packer
element damage.
A PPLICATIONS
Water Shut-off - Single-Set packers may be used for long term production to block
water encroachment zones in a well. As the life of a well increases, water coning
may occur. Also, water production may start occurring from fractures or channels.
Inflatable packers provide an effective seal in open hole or in casing, to block this
unwanted water production.
Production - Single Set Rotational Release Packers are also very effective for
production applications. The packer serves two purposes when used for these
applications. Firstly, the inflatable packer element provides a very effective seal in
open hole or in casing. Secondly, the element anchors solidly in open hole or in
casing, to prevent tubing reciprocating or rotational movement at the tool.
For production applications, flow of oil or gas may occur from below the tool. A
pumpout sub enables the flow passage through the tool to be opened for production,
after the packer has been set. Alternatively, flow of oil or gas may take place from
the production zone above the packer. A circulating valve (hydraulic, rotational
type, or impact plug type) enables the flow passage above the tool to be opened,
after the packer has been set.
Injection - Single Set Rotational Release Packers may be used for injection of fluids
in disposal wells. A large internal bore, equivalent to the running string, is provided
through the tool. For long term disposal applications it is very important that
materials used in manufacturing these tools, are able to resist highly corrosive
environments typically associated with disposal wells.
For disposal applications, fluid is normally injected to the zone located below the
tool. A pumpout sub enables the injection passage through the tool to be opened for
injection, after the packer has been set.
Testing - Single Set Packer s may be used for testing zones in open hole or in casing.
Zones may be isolated to determine oil, gas, or water production from certain
sections. Testing of each zone will determine which fluid is produced from that
section. Also, testing will determine flow rates the zone. Electronic Pressure-
Temperature Recorders as well as Shut-In Tools, may be used with the system to
provide additional subsurface data from zones being tested.
For testing applications, flow of well fluids may take place from the zone located
above the packer. It is recommended that a rotational circulating valve be used
directly above the tool. After the packer has been set, this valve may be rotated to
open the flow ports. Once the required information from that zone is obtained, the
valve may be rotated to close the flow ports.
Testing may then take place from the zone located below the tool. A pumpout sub
enables the flow passage through the tool to be opened for testing.
Treating - Single Set Rotational Release Packers may be used for treating zones in
open hole or in casing. A large internal bore equivalent to the running string, is
provided through the tool. This large bore minimizes frictional effects and does not
provide restrictions for treatment at high pump rates.
Typical treatments performed through the tool would be fracturing, acidizing,
polymer injection for water shut-off, and acid washes.
For treating applications, a circulating valve is used above the tool. This valve is
opened to allow treatment fluid to be pumped from surface, to the tool. Once the
treatment fluid is spotted to the tool, the circulating valve is closed, and treatment
fluid is then injected to the zone located below the packer.
Squeeze Cementing - Single Set Rotational Release Packers may be used for
squeeze cementing zones in open hole or in casing. These packers provide greater
clearance for running tools into a well where there are restrictions such as casing
patches. In addition, the long seal section provided with an inflatable element is
more effective in older wells where casing may be partially corroded. These packers
are particularly effective for squeeze cementing required to abandon old wells.
For squeeze cementing applications, a circulating valve is used above the tool. This
valve is opened to allow cement to be circulated from surface, to the tool. Once the
cement is spotted at the tool, the circulating valve is closed, and cement is then
squeezed into the zone located below the packer.
Bridge Plug - Single Set Rotational Release Packers may be used as Bridge Plugs in a
well, to isolate oil-water or gas- water contacts. These packers provide effective
isolation in open hole or in casing. The long seal section provides additional
assurance that good isolation will be provided where fractures or channels are
present.
For bridge plug applications, a bull plug is typically used below the tool. Also, an on-
off seal assembly is used directly above the tool. Once the packer has been set,
manipulation of the work string allows tubing to be disconnected from the tool. In
horizontal wells, a hydraulic disconnect unit is typically used. Additional pressure
applied after setting the packer, disconnects the tubing string from the packer.
Pressure Testing Casing Patches - Single Set Rotational Release Packers are very
effective for testing casing patches. Run-in diameter is reduced when a casing patch
is set. An inflatable packer is designed with a reduced Outer Diameter (O.D.), which
makes it possible to pass through a casing patch.
For testing a casing patch, the single set inflatable packer is normally set directly
below the patch. After the packer has been set, pressure is applied to the annulus
above the packer.
Specifications
D IMENSIONAL
Dimensions
Maximum OD 118 mm (4.62”)
Minimum ID: 64 mm (2.50”)
2-7/8” API EUE 8RND
Top Box Connection:
Threaded
3-1/2” API EUE 8RND
Bottom Pin Connection
Threaded
Weight: 135 kg (299 lbs.)
Operating Procedures
Prior to running the Single Set Rotational Release Tool into the well, a decision must
be made whether to run a pumpout sub, ball shear assembly, or a bull plug, at the
bottom of the tool.
A pumpout sub will not allow tubing to fill as the tool is run into the well. Shear Pins
are used in this sub and these may be set at a pre-determined value based on
accessory tools used, and downhole operating conditions. A pumpout sub is
normally used in highly deviated or horizontal wells.
A Ball Shear Assembly allows tubing to fill as the tool is run into the well. Also, fluids
may be circulated down the tubing before dropping the ball from surface.
A Bull Plug is typically used for bridge plug applications.
Maintenance Procedures
D ISASSEMBLY P ROCEDURE
Follow all safety procedures. Failure to do so may result in serious injury or
death.
Warning:
Wear all required safety equipment.
Review the appropriate Job Safety Analysis (JSA) forms before working.
Ensure hand tools are in good working condition.
Ensure the workplace clean and uncluttered, free of tripping hazards.
Ensure the work place is free of other hazards.
Use proper lifting technique, and get help lifting objects if necessary.
Do not use any unnecessary force in disassembling any part of this tool.
General:
Follow full maintenance procedures before moving the tool to location and after
every trip down hole.
Inspect all parts for wear or damage, and replace damaged parts.
Discard all O-rings. (O-rings must never be reused)
Consult the Assembly Drawing as needed.
Completely disassemble and clean the components, inspect sealing surfaces,
inspect all thread connections, and replace all damaged parts. Refer to the
Maintenance Check sheet.
Inspect sealing surfaces, inspect all thread connections, and replace all damaged
parts. Refer to the Maintenance Check sheet.
Note: Refer to Assembly Drawing for part reference.
1. Remove the 2-7/8” Coupling (1) from the Upper Mandrel (2).
2. Remove the Mandrel Nut (3) from the Mandrel Housing (4).
3. Remove the Mandrel Housing (4) from the upper Mandrel (2).
4. Rotate the Release Coupling – RR (5) clockwise and remove it from the Valve
Housing (6).
5. Unthread the Plug Pump Out Sub (13) from the from the Packer Mandrel (10).
6. Remove the Hollow Hex Plug – ORB No. 4 (302) from the Bottom Packer Shoe
(12).
7. Remove the Bottom Packer Shoe (12) from the Packer Mandrel (10).
8. Remove the 4.62 Strip Element (11) from the Packer Mandrel (10).
9. Remove the Remove the Shear Screws (301) from Valve Housing (6).
10. Remove the Packer Mandrel (10) from the Valve Housing (6).
11. Remove the Valve Retainer Sub (9) from the Valve Housing (6).
12. Remove the lock Ring (8) and Closing Valve (7) from the Valve Housing (6).
13. If installed, remove the Aluminum Ball Seat Plug (15) and Chrome Ball – 1,00
Dia (14) from the Pumpout Sub (13).
14. If installed, remove the Aluminum Solid Plug (16) from the Pumpout Sub (13).
Hold Point 1 - Test tool component parts should only be inspected and released for
reassembly by named individuals who have been designated competent in this
task by the local operational management. Parts should not be re-used unless
explicitly authorized by such individuals. Such authorization must be recorded
on the tool maintenance check sheet.
A SSEMBLY P ROCEDURE
Follow all safety procedures. Failure to do so may result in serious injury or
death.
Warning:
Wear all required safety equipment.
Review the appropriate Job Safety Analysis (JSA) forms before working.
Ensure hand tools are in good working condition.
Ensure the workplace clean and uncluttered, free of tripping hazards.
Ensure the work place is free of other hazards.
Use proper lifting technique, and get help lifting objects if necessary.
Do not use any unnecessary force in disassembling any part of this tool.
General:
Follow full maintenance procedures before moving the tool to location and after
every trip down hole.
Inspect all parts for wear or damage, and replace damaged parts.
Discard all O-rings. (O-rings must never be reused)
Consult the Assembly Drawing as needed.
Inspect all thread connections, and replace all damaged parts. Refer to the
Maintenance Check sheet.
Note: Refer to Assembly Drawing for part reference.
Hold Point 2 – Inspect all parts and components. Replace all O-rings, shear screws
and set screws. Ensure that all parts are in good condition. Replace any parts or
components that are damaged or degraded.
1. Position the Lock Ring (8) on the Valve Retainer Sub (9).
2. Position the Closing Valve (7) on the Valve Retainer Sub (9). Secure the Valve
Retainer Sub in place with shear Shear Screw (303).
3. Slide the Closing Valve (7) onto the Valve Housing (6).
4. Position the Valve Housing (6) on the Packer Mandrel (10).
5. Position the 4.62 Strip Element (11) over the Packer Mandrel (10) and mate it
to the Valve Retainer Sub (9).
6. Slide the Bottom Packer Shoe (12) into position and thread it to the 4.62 Strip
Element (11).
7. Thread the Plug Pumpout Sub (13) onto the Packer Mandrel (10).
8. Depending on the intended use of the 4.62” X 4.62” Single Set Packer, either
place the Chrome Ball 1.500”DIA (15) in the Aluminum Ball Seat Plug (14) and
thread the Aluminum Ball Seat Plug (14) onto the Plug Pumpout Sub (13). Or,
install the Aluminum Solid Plug (16) on the Plug Pumpout Sub (13).
9. Position the Plug Pumpout Sub (13) on the Packer Mandrel (10).
10. Position and thread the Release Coupling - RR (5) onto the Packer Mandrel (10).
11. Position the Upper Mandrel (2) into the Release Coupling - RR (5).
12. Position the Mandrel Housing (4) over the Upper Mandrel (2) and secure it by
turning it counterclockwise.
13. Position the Mandrel Nut (3) over the Upper Mandrel (2) and secure it to
Mandrel Housing (4).
14. Position the 2-7/8” Coupling (1) onto the Upper Mandrel (2).
Hold Point 3 – Inspect re-assembled tool. Confirm that all O-rings have been
replaced. Tool is ready for testing.
Page 9 Document #: 0628-046201-DA
Copyright 2015 World Oil Tools Incorporated. All rights Revision: A.1
reserved. The contents of this manual are confidential Issued: 2015-03-04
and proprietary. You may not reproduce this manual
www.worldoiltools.com without prior written permission from World Oil Tools Printed: 2015-03-04
Incorporated. This manual may be used for
informational purposes only.
Information contained herein is only current at time of Issue. Contact www.worldoiltools.com for the most current technical documentation
4.62” X 4.62" Big Bore, Single Set Packer
Rotational Release
6. After 5 minutes, bleed back the pressure very quickly from the high pressure
pump. Do not open the valve located on the Bottom Shoe. At this point, some
pressure loss will occur in the inflatable packer element, due to movement of
the check valve.
7. Wait an additional 5 minutes to ensure no further pressure loss occurs through
the check valve.
8. Open the valve located on the Bottom Shoe, and bleed back the packer inflation
pressure. Remove the gauge and valve assembly located on the Bottom Shoe.
Thread a Hollow Hex Plug – ORB No. 4 (303) into the side port located on the
Bottom Packer Shoe (12).
9. Remove the casing section from the tool, and remove the tubing collars and bull
plugs from the tool.
10. If the tool will not be used in the field immediately, it is recommended that the
tool be disassembled, and all components should be allowed to air-dry.
Alternatively, any water in the system could be displaced with a non-corrosive
fluid.
11. Using a rubber mallet, tap the Upper Mandrel (2) to ensure the shoulder on the
Upper Mandrel (2) contacts the Release Coupling –RR (5). Rotate the Upper
Mandrel (2) until side holes on this mandrel are aligned with side holes on the
Mandrel Housing (4).
HOLD POINT 4 – Tool pressure tests can only be verified by named individuals that
have been designated competent in these tasks by the local operational
management. Such verification must be recorded on the tool maintenance check
sheet.
Bill of Materials
ITEM NUMBER DESCRIPTION QTY.
NO.
1 9210-0288XX-PP 2-7/8" COUPLING 1
2 0627-046201-DP UPPER MANDREL 1
3 0627-046210-DP MANDREL NUT 1
4 0627-046202-DP MANDREL HOUSING 1
5 0627-046203-DP RELEASE COUPLING – RR 1
6 0627-046205-DP VALVE HOUSING 1
7 0627-046209-DP CLOSING VALVE 1
8 0627-046206-DP LOCK RING 1
9 0627-046204-DP VALVE RETAINER SUB 1
10 0627-046207-DP PACKER MANDREL 1
11 0302-046204-DA 4.62" STRIP ELEMENT 1
12 0627-046208-DP BOTTOM PACKER SHOE 1
13 6002-287502-DP PLUG PUMPOUT SUB 1
14 9150-1500CR-PP CHROME BALL - 1.500" DIA 1
15 6001-267301-DP ALUMINUM BALL SEAT 1
PLUG
16 6000-267303-DP ALUMINUM SOLID PLUG 1
101 9000-234XXX-PP O-RING 1
102 9000-237XXX-PP O-RING 2
103 9000-240XXX-PP O-RING 2
104 9000-241XXX-PP O-RING 2
105 9000-340XXX-PP O-RING 2
106 9000-229XXX-PP O-RING 1
201 9001-237XXX-PP BACKUP RING 4
202 9001-240XXX-PP BACKUP RING 4
301 9400-100002-PP SHEAR SCREW 6
302 9300-100004-PP HOLLOW HEX PLUG - ORB 1
NO. 4
303 9400-140001-PP SHEAR SCREW 8
Redress Kit
Assembly Drawing