OVERVIEW: Recommended pulling and installation techniques for the different types of side pocket devices installed in the side pocket mandrels SPECIFIC REQUIREMENTS Pressurebalancing, Preoperational checks HSE REQUIREMENTS PermittoWork, portable single well control unit PROCEDURE ACTION ITEMS Assembly of Gas lift Valve Running ToolsPalling Tool, Preparing the Kick over Tools, and Pulling and Installing Side Pocket Devices ATTACHMENT Calculation of Pressure Balance, Recovery Of dropped Gas lift Valve or Dummy during Operation
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DOCUMENT NAME: WLP 19
Revision No
OPERATIONS OF SIDE POCKET MANDRELS
SUMMARY OF SCOPE:-
OVERVIEW:
Recommended pulling and installation techniques for the different types of side pocket devices installed in the side pocket mandrels
SPECIFIC REQUIREMENTS
Pressure-balancing, Pre-operational checks
HSE REQUIREMENTS
Permit-to-Work, portable single well control unit
PROCEDURE ACTION ITEMS
Assembly of Gas lift Valve Running Tools/Palling Tool, Preparing the Kick over Tools, and Pulling and Installing Side Pocket Devices
ATTACHMENT
Calculation of Pressure Balance, Recovery Of dropped Gas lift Valve or Dummy during Operation
REVISION REGISTER
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CONTENTS
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4.1.1 Pinning GLV’s to Camco GA-2 Running Tool 4.1.2 Pinning GLV’s to Camco JK Running Tool 4.2 ASSEMBLY OF GAS LIFT VALVE PULLING TOOL
4.2.1 Pinning Camco JDC Pulling Tool 4.3 CAMCO "OK" SERIES KICK OVER TOOL
4.3.1 Preparing OK-6 Kick over Tool 4.3.2 Preparing OK-DS And OD-1 Kick over Tool
4.4.1 Preparing the Merla Kick over Tool
4.5 RETRIEVAL OF SIDE POCKET DEVICES
4.5.2 Installing Gas lift Valve Catcher 4.5.3 Pulling Side Pocket Devices 4.6 INSTALLATION OF SIDE POCKET DEVICES
4.6.1 Preparation 4.6.2 Installing SPDs Using Camco GA-2 Running Tool 4.6.3 Installing SPDs Using Camco JK Running Tool
5.1 Calculation of Pressure Balance
5.2 Recovery Of Dropped Gas lift Valve or Dummy during Operation
1 OVERVIEW
Side pocket mandrels are installed in all the wells during completions Devices are installed in them to provide
communication between the tubing / casing annulus for the purposes of gas lifting, chemical injection or circulation of fluids, or to isolate the annulus from the tubing if the mandrel is not in use In most cases, the side pocket mandrels are
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used for gas lifting purposes, hence much wireline work is carried out in the retrieval and installation of gas lift valves and dummies
This procedure is intended to cover all aspects of the recommended pulling and installation techniques for the different types of side pocket devices installed in the side pocket mandrels
2.1 Prior to carrying out any side pocket mandrel operations, the following mandatory precautions shall
be observed strictly
2.1.1 Installation of a gas lift valve catcher below the deepest mandrel where the gas lift valve
change operation is to be performed
2.1.2 Ensuring that there is no over-balance of pressure on the annulus side Refer to Attachment
for the pressure-balancing calculation
2.2 In the event the required pressure balancing source is not available, e.g., production station being shut
down, it may be necessary to open the Sliding Side Door (SSD) above the top packer in the long string to allow the fluid in the annulus to "U tube" into the tubing for a few hours, and then closing back the SSD and bleeding off any pressure in the annulus This will reduce the hydrostatic column in the annulus, and less pressure will be required to counter balance that hydrostatic pressure
2.3 If gas lift valve change operation is to be carried out in the short string, Step 2.2 shall be first carried
out in the long string, since there is no SSD in the short string above the top packer
3.1 The safe execution of the entire operation is governed by the Permit-To-Work system
3.2 The custodianship of a particular Xmas tree shall be transferred to the Well Services Supervisor or
Wireline Senior Foreman upon successful application of the PTW and the associated remote control for the Surface Safety valve (SSV) and SCSSV shall be lined up to the Well Services portable control unit As such, there is no direct access by unauthorized personnel to the tree without the consensus of the Well Services Supervisor or Wireline Senior Foreman
Important: No lock-out cap shall be used for the SSV when it is operated by the Well Services portable control unit
The 1.1/4" Camco "GA2" running tool is used in conjunction with the kick over tool to run and set 1" gas lift valves with integral bottom latches It consists of an adjustable plunger and stabilizer pinned to the body Downward tapping/jarring impact is transmitted on the plunger to the running head of the gas lift valve When the gas lift valve is set in the side pocket, the opposing action of the plunger and body will shear both the telltale pins (which hold the stabilizer to the body) and the releasing pins (which hold the gas lift valve in the running position) simultaneously
4.1.1.1 Preparation of GA2 Running Tool
4.1.1.1.1 Ensure the 15/16" pin threads are in good condition
4.1.1.1.2 Remove the 1/8" retaining roll pins from the body and inspect If
pins are not in good condition, replace with new ones
4.1.1.1.3 Remove adjustable plunger together with the stabilizer from the
bottom end of the body and inspect for any damage to the plunger Replace damaged parts as necessary
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4.1.1.1.4 Knock out the remains of all shear pins from the body
4.1.1.1.5 Screw the stabilizer until it bottoms out against the end of threads
on the adjustable plunger Insert this assembly back through the bottom into the body until it shoulders up at- the top inside the body
4.1.1.1.6 Insert the 1/8" retaining roll pins into the body
4.1.1.1.7 Push the adjustable plunger downwards until the stabilizer stops
on the 1/8" retaining roll pins
4.1.1.1.8 Rotate the adjustable plunger with a flat screwdriver from the top
end and align the pin grooves in the stabilizer with the upper set
of telltale shear pin holes in the body Insert 1/8" brass pins to pin the stabilizer to the body
4.1.1.1.9 Flare the ends of all pins to ensure they will not drop out when in
the hole, especially when the tool is travelling down or up the hole at moderate speeds The running tool is now ready for use
4.1.1.2 Assembly of Gas lift Valve to GA2 Running Tool
4.1.1.2.1 Insert the running head of the gas lift valve into the bottom of the
running tool body Align the releasing pin grooves on the gas lift valve running head with the releasing shear pin holes in the bottom part of the running tool body
4.1.1.2.2 Insert 1/8" aluminium pins into these shear pin holes to pin the
gas lift valve to the running tool Flare the ends of the shear pins
to prevent them from dropping out
using a flat screwdriver until it bottoms out against the top of the gas lift valve running head Tighten the adjustable plunger snugly
so that the running tool and gas lift valve form a rigid assembly
Note: Do not over tighten, as this can shear the two aluminium releasing pins
4.1.1.2.4 Lightly grease the packings of the gas lift valve with an all
purpose grease The valve and running tool are now ready for assembly to the kick over tool
The 1.5/16" Camco "JK" running tool is used in conjunction with the kick over tool to run and set 1" gas lift valves with "BK2" top latches It consists of a single piece body with shear pin holes for the insertion of releasing pins which hold the BK2 latch assembly in the running position Downward tapping/jarring impact is transmitted to the running head of the BK2 latch/gas lift valve assembly When the gas lift valve is set in the side pocket, upward jarring will shear the releasing pins and free the JK running tool
4.1.2.1 Preparation of JK Running Tool
4.1.2.1.1 Ensure the 15/16" pin threads are in good condition
4.1.2.1.2 Knock out the remains of all shear pins from the body
4.1.2.2 Assembly Of Gas lift Valve to JK Running Tool
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4.1.2.2.1 Insert the running head of the BK2 latch/gas lift valve into the
bottom of the JK running tool body until the running head of the BK2 latch is seated against the internal taper in the JK running tool body
Note: Ensure the bottom shoulder of the running tool body is not contacting the tapered shoulder above the latch body
If there is contact, damage will result to the BK2 latch, and the particular JK running tool should not be used
4.1.2.2.2 Insert 1/8" brass pins into these shear pin holes to pin the BK2
latch of the gas lift valve to the running tool Flare the ends of the shear pins to prevent them from falling out
4.1.2.2.3 Lightly grease the packings of the gas lift valve with an all
purpose grease The running tool attached with the valve is now ready for assembly to the kick over tool
1.1/4" Camco JDC pulling tool is the pulling tool used in retrieving 1" O.D gas lift valves It is used in conjunction with a kick over tool to pull 1" O.D gas lift valves from side pocket mandrels It is a jar down to shear and release pulling tool
4.2.1.1 Preparation
4.2.1.1.1 Check that the 15/16" pin threads on the fishing neck are in good
condition
4.2.1.1.2 Ensure the dog spring is in good condition and the brazed ends
are intact
4.2.1.1.3 Check the dogs’ shoulders are not worn Replace if worn
4.2.1.1.4 Ensure the core extension is in place if pulling gas lift valves or
dummies with integral bottom latches
Note: A standard JDC pulling tool will not be able to shear and release once latched onto a valve or dummy with an
integral bottom latch due to its long reach
4.2.1.2 Shear Pin Replacement
4.2.1.2.1 Back off the fishing neck from the tool assembly at the
connection between the fishing neck and body and remove the fishing neck
4.2.1.2.2 Remove the shear pin retainer and let the remains of the shear pin
drop out
4.2.1.2.3 Push the core downwards against the skirt until the shear pin hole
in the core is aligned with that in the body
Note: The core may be pushed down easily by placing in a vice and pushing against the skirt with hand If a spacer is used in conjunction with the fishing neck to compress the spring to push the core down, ensure the spacer is removed
from inside the fishing neck after installation of the shear pin in the pulling tool
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4.2.1.2.4 Insert a 3/16" pin punch through the holes in the body and core,
driving out the remaining part of the shear pin from the core at the same time
4.2.1.2.5 Drive a 3/16" steel pin through the other side of the hole until it
protrudes out at the other side Knock back the end of the shear pin flush with the edge of the hole and cut the shear pin to length 4.2.1.2.6 Install back the shear pin retainer and screw back the fishing
neck Tighten all connections, taking care not the grip the pipe wrench jaws on the dogs The pulling tool is now ready for use
Caution: If using the pulling tool to pull 1" GLV’s or dummies with the BK-2 top latches, ensure that
the core extension is removed, otherwise the pulling tool will not be able to latch
If pulling 1" GLV’s or dummies with integral bottom latches, ensure that the core extension is installed on to the ain core, otherwise the pulling tool will not be safely released from the GLV’s or dummies
The Camco "OK" series of kick over tools are used extensively in side pocket mandrel work for the setting and retrieval of gas lift valves, chemical injection valves, dump kill valves and dummies It is
a selective tool which can locate into any one side pocket mandrel in a tubing string by a built-in device in the mandrel itself called the "Orienting Sleeve" In simple terms, the OK series kick over tool consists of a locating finger which locates and orients the alignment of the kick over tool arm with the valve pocket when the finger is pulled against the orienting sleeve It in turn activates the arm to kick out at the slot in the "tool discriminator" to guide the pulling tool or gas lift valve dummy towards the valve pocket
The first kick over tool in use in PCSB is the Camco "OKDS" kick over tool Over the years, various upgrades of the OK series kick over tools were introduced, namely the "OK 1" and "OK 5" kick over tools, culminating in the present "OK 6" kick over tool The OK-6 kick over tool comes with an integral valve catcher on the bottom of the tool housing This feature was foreseen as more problematic than advantageous, hence all integral valve catchers were cut off Moreover, it is a prerequisite to install a valve catcher below the side pocket mandrels before carrying out any side pocket mandrel work in the hole
The following guide covers the disassembly/assembly and pinning process of all the Camco kick over tools in use in PCSB Although there are not many OKDS and OK1 kick over tools in use, the guide is still covered here separately
4.3.1.1 Disassembly of OK-6 Kick over Tool
4.3.1.1.1 Remove the socket headset screws from the top of the finger
cage
4.3.1.1.2 Place the kick over tool finger cage in a backup wrench
4.3.1.1.3 Back off the fishing neck from the finger cage
4.3.1.1.4 Back off the set screw in the arm adaptor
4.3.1.1.5 Depress the locating finger into the finger housing and pull out
the finger housing together with the release plunger and release plunger spring
Note: If the pin is sheared, invert the kick over tool to let the release plunger and release plunger spring drop out
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4.3.1.1.6 Check for slack in the arm joints If the joints are slack, the kick
over tool should be returned to the workshop for replacement of the detents and springs
4.3.1.1.7 Check to ensure that the arm pins are not loose If necessary use a
5/16" pin punch to further flare out the countersunk end of the pin
4.3.1.1.8 Check that the finger springs are sufficiently strong to push the
finger out at all times
4.3.1.2 Pinning the Kick over Tool
4.3.1.2.1 Remove the shear pins from the finger housing which pin the
release plunger and the locating finger
4.3.1.2.2 Pin the locating finger to the finger housing with a cut to length
1/4" brass shear pin
4.3.1.2.3 Insert release plunger into the bottom end of the finger housing
such that the slot at the bottom end of the release plunger is directly opposite the locating finger
4.3.1.2.4 Align the shear pin holes in the release plunger and the finger
housing Insert a 3/16" brass pin into this hole and cut/file flush with the O.D of the finger housing
4.3.1.3 Assembling the Kick over Tool
4.3.1.3.1 Slip the release coil spring over the release plunger Insert the
finger housing/release plunger/release spring assembly into the finger cage with the locating finger lined up with the window for the locating finger in the finger cage
4.3.1.3.2 Push the assembly all the way in until the locating finger pops out
of the window in the finger cage
4.3.1.3.3 Screw the fishing neck into the finger cage and tighten the
connection Insert the set screws to secure the fishing neck 4.3.1.3.4 Press down the arm assembly fully against the housing and screw
in the release set screw until resistance is felt
Note: Do not tighten the release lock screw Tightening the lock screw may prevent proper
operation of the kick over tool down hole
4.3.1.3.5 Hold the kick over tool upright Using a flat file, activate the kick
over tool by pressing the file down on the locating finger until the arm assembly kicks out Check the stiffness of the arm assembly
in this position by pressing it against the housing If the arm springs are found to be weak, replace the arm springs Ensure the socket head lock screw is tightened
4.3.1.3.6 Press down the arm assembly and back out the release lock screw
to deactivate the kick over tool Screw in the release lock screw again as in Step 4.3.1.3.4
4.3.1.3.7 Check that the fin at the bottom end of the housing is aligned
with the locating finger If they are not aligned, slack off the lock
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nut and rotate the housing until they-are-aligned; -then tighten the lock nut The kick over tool is now ready for use
Both the "OKDS" and "OKI" kick over tools used to have locking mechanisms to lock the tool in the activated, position However, it was discovered that the release set screw could keep the kick over tool in the activated position, and that these locking mechanisms were found unnecessary, hence were all removed The guide for disassembling, pinning and assembling is similar to that for the OK-6 kick over tool
4.3.2.1 Disassembly of the Kick over Tool
4.3.2.1.1 Place the kick over tool finger cage in a backup wrench
4.3.2.1.2 Back off the fishing neck from the finger cage
4.3.2.1.3 Back off the release set screw in the arm adaptor
4.3.2.1.4 Depress the locating finger into the finger housing and pull out
the finger housing together with the release plunger and release plunger spring
Note: If the pin is sheared, invert the kick over tool to let the release plunger and release plunger spring drop out
4.3.2.1.5 Check the arm pins are not loose If necessary use a 5/16" pin
punch to further flare out the countersunk end of the pin
4.3.2.1.6 Check that the finger springs are sufficiently strong to push the
finger out at all times
4.3.2.2 Pinning the Kick over Tool
4.3.2.2.1 Knock out the shear pins from the arm, arm adaptor and lower
adaptor
4.3.2.2.2 Check the condition of the arm springs and ensure they are
sufficiently strong Replace if necessary and ensure the socket head lock screw is tightened
4.3.2.2.3 Insert new 3/16" brass pins to pin the arm, arm adaptor and lower
adaptor Cut and file all pins flush with the O.D of the arm assembly
4.3.2.2.4 Replace the pin in the finger housing/locating finger with a new
1/4" brass pin
4.3.2.2.5 Replace the pin in the finger housing/release plunger with a new
3/16" brass pin
4.3.2.3 Assembling the Kick over Tool
4.3.2.3.1 Slip the release coil spring over the release plunger Insert the
finger housing/release plunger/release spring assembly into the finger cage with the locating finger lined up with the window for the locating finger in the finger cage
4.3.2.3.2 Push the assembly all the way in until the locating finger pops out
of the window in the finger cage
4.3.2.3.3 Screw the fishing neck into the finger cage and tighten the
connection
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4.3.2.3.4 Make up the release set screw into the arm adaptor until
resistance is felt Press down the arm assembly fully against the housing and screw in the release set screw until resistance is felt
Note: Do not tighten the release lock screw Tightening the lock screw may prevent proper operation of the kick over
tool down hole
4.3.2.3.5 Hold the kick over tool upright Using a flat file, activate the kick
over tool by pressing the file down on the locating finger until the arm assembly kicks out Check the stiffness of the' arm assembly
in this position by pressing it against the housing If the arm springs are found to be weak, replace the arm springs Ensure the socket head lock screw is tightened
4.3.2.3.6 Press down the arm assembly and back out the release lock screw
to deactivate the kick over tool Screw in the release lock screw again as in Step 4.3.2.3.4
4.3.2.3.7 Check that the fin at the bottom end of the housing is aligned
with the locating finger If they are not aligned, slack off the lock nut and rotate the housing until they are aligned, then tighten the lock nut The kick over tool is now ready for use
The Teledyne Merla Positioning (kick over) tool's working principle is 'similar to the Camco "OK" series of kick over tools However, it is a much simpler tool with only one shear pin to change out, and it is a much shorter tool in comparison After completing operations in the side pocket mandrel, the tool will be recocked once it is pulled into the tubing, hence reducing wear and tear on the arm assembly
This kickover tool has gone through many improvements over the years,', and Teledyne Merla further came up with the "HD" (Heavy Duty) version of the kick over tool which incorporates stronger springs to ensure that the pivot arm will remain in the furthest position once activated This improvement further enhances working with this tool in a deviated well
Total disassembly of the kick over tool on site is not recommended, but the following guide applies for disassembly for the purposes of pinning and inspection
4.4.1.1 Disassembly of the Kick over Tool
4.4.1.1.1 Place the body in a backup wrench or vice, gripping on the flats 4.4.1.1.2 Using another wrench, grip on the hoisting plug Back off the
hoisting plug slowly until the pin in the trigger housing is aligned with the hole in the body
4.4.1.1.3 Punch out the pin in the trigger housing and remove the key and
trigger assembly from the housing through the window in the body
4.4.1.1.4 Remove the trigger spring from the trigger housing through the
window in the body
4.4.1.1.5 Slide the trigger housing out from the tool body
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4.4.1.1.6 Punch out the key pin and inspect for any damage/defect Replace
as necessary and re-pin the key to the trigger
4.4.1.1.7 Punch out the brass shear pin and replace with a new 3/16" brass
pin to pin the key to the trigger in the cocked position
4.4.1.1.8 Punch out the pivot arm pin and inspect its condition If there is
the slightest sign of shearing, replace the pin with a new one
4.4.1.2 Pinning and Assembly of the Kick over Tool
4.4.1.2.1 Re-pin the pivot arm to the bottom of the tool body Ensure the
ends of the pivot arm pin are flush with the flats on the tool body Check for any loose play in the joint The pivot arm should be able to hinge freely
4.4.1.2.2 Smear some "Lubriplate" grease on the sides of the trigger
housing Slide the trigger housing into the body
4.4.1.2.3 Screw the hoisting plug into the body until the retaining pin hole
in the trigger housing is aligned with the hole in the body
4.4.1.2.4 Place the trigger spring through the window in the body into its
profile in the trigger housing
4.4.1.2.5 Insert the trigger/key assembly through the window in the body
and align the hinge pin holes in the trigger housing and the trigger
4.4.1.2.6 Insert the hinge pin through the hole in the body to pin the trigger
to the housing
4.4.1.2.7 Screw the hoisting plug all the way in until it shoulders up with
the top of the tool body Tighten the connection
4.4.1.2.8 Check for proper function of the trigger by depressing it until
flush with the O.D of the tool body, and then allow it to spring out again to ensure it can move in and out of the window freely Tool is now ready for use
4.5.1.1 Pressures Balancing In A Gas Lifted Well
Where a well has been producing, or currently on gas lift, the annulus contents would have been evacuated down to the deepest valve set in the tubing string Therefore, pressures exerted by the hydrostatic column in the casing / tubing annulus will no longer present-an-overbalance situation unless the CHP (Casing Head Pressure) is higher than the CITHP (Closed In Tubing Head Pressure) For wells which are currently on gas lift, pressures in the annulus and tubing will balance out after a short period of closed-in time It would be observed that the CITHP will be equal to the CHP after all the necessary drift nets, retrieval of the SCSSV and installation of the gas lift valve catcher In the event that the CHP is higher than the C=, carry out as follows:
4.5.1.1.1 Close in the gas lift supply if the other string in a dual string well
is producing on gas lift