Production Packer

COS One Trip Hydroset

The COS One Trip Hydroset Packer is a Hydraulic Set, Dual Bore Packer for placing short or long tailpipe liners in Horizontal or Extended Well Bores. This Permanent Packer has high tension load capability to make it a perfect choice when liner systems need to be anchored in place. As a double grip packer, the Dual Bore Permanent Packer Prevents both upward and downward movement once the tool is set in place. Being a completely hydraulic set packer, the Dual Bore Permanent Packer does not require any setting string manipulation to set the packer.

Use of a Dual Bore PBR Allows for the maximum ID thru the Tool and any Seal Assemblies to allow for the tool to be on size with the liner.

Features :

Vertical and Horizontal Well Bore Applications
Double Grip to prevent liner movement after set
Completely Hydraulically Set, No Setting String movement required
Internal Locking, no force required to be left on the tool
Shear Pins allow for adjustments of setting pressure

Different elastomers and materials available for hostile environments

Expandable Bridge Plug (Production Packer)

COS Model “B” Expendable Plug is used for temporarily converting a Model J or Model L Permanent Production Packer into a bridge plug for acidizing, frac and/or testing work above the packer. Upon completion of this work above, the plug may be pushed out the bottom with a production tube.

Model “J” & “L” Permanent Production Packers

The COS Model “J” & “L” Production Packers are available to fit your needs and provide the versatility of our excellent pack-off system for a positive secure set in the well bore.

These packers assist in the economical operation of a variety of completion and production jobs. They are designed to accommodate seal bore extensions used in deep wells requiring a longer seal bore interval. Seal Nipples are available with either automatic square-thread latch or locating shoulder. These packers can be used as test tools. Full opening bores allow the passage of perforating guns used to perforate a zone below for testing. If the zone proves to be non-productive, the packer can be used as a squeeze tool.

The packers are designed to provide high-impact resistance and a dependable seal. The high quality packing system will conform to the casing and close off any extrusion of rubber, as the packer is set, even at high temperatures and pressures.

COS’s Model J Production Packers provide excellent clearance for run-in while the COS Model “L” Production Packers offer a larger seal bore. The two models carry different pressure ratings noted later in this document.

R22 is the designation for standard service that COS puts on the equipment listed below. Equipment for service other than standard can be specified upon request from the customer.

For additional information, please contact COS or an authorized representative.

Features :

E.C.N.E.R. Array packing element system
One piece slips hardened to depth of wicker only
Sets in any grade casing including P-110
Choice of bottom to fit your application – specified when ordering
Ratcheting lock ring holds setting force

Availability :

Model J’s – 4 1/2 thru 9 5/8 Casing
Model L’s – 5 1/2 thru 7 5/8 Casing

Model J And Model L Adapter Kit(Packer Accessories)

The wireline adapter kit is used to connect the COS Model J or Model L permanent production packers and similar equipment to a wireline pressure setting assembly or a hydraulic setting tool. Actuation of the explosive applies pressure to the adapter sleeve, setting the packer. At a predetermined force, a tension stud parts, releasing the collet-style running nut from the packer. The adapter kit is retrieved with the wireline and pressure setting assembly

Applications :

Sets Model J or Model L packer on electric wireline via wireline pressure setting tool.
Sets Model J or Model L packer on work string via hydraulic setting tool.

Advantages :

Wireline set enables accurate location in the well by correlating position with well logs
May be set with industry standard E-line or hydraulic setting tools
Simple to install with only three major parts
No special tools required

Model “SRHP” Single String Retrievable Hydraulic Packer

The COS “SRHP” is a pure hydraulic set packer that can be run in single or multiple zone installations. It is highly recommended for deviated wells where conditions are not suitable for mechanical or wireline set packers.

No tubing movement is required or generated in order to set the packer. This allows the well to be kept positively controlled at all times because the tubing is landed and the wellhead installed before circulating or displacing well fluids prior to setting the packer. Two or more packers can be set either at once or in any desired sequence.

The SRHP packer design features bi-directional, one piece slips located below a three element packing system consisting of dual durometer rubber elements. The slips are fully enclosed in a shear pinned slip housing which in turn is protected by a full diameter guide located below the slip housing.

The SRHP packer requires a means of establishing a maximum of 3,500 psi pressure inside the tubing at the packer (for 7″ and smaller). The hydraulic setting chamber is adjustable between 900 to 2,500 PSI which allows the tubing to be pressure tested before the packer begins to stroke and set. Two balanced pistons are utilized during the setting process. The lower piston moves down to set and anchor the slips before the upper piston moves upward to compress the packing. This action imparts the total setting force to both slips and packing thus assuring a positive anchor and pack-off. The pack-off is retained by a one-piece ratchet ring that locks in and stores the setting force applied to both the slips and packing elements.

The SRHP packer incorporates two methods of release, straight pull or rotation. Both methods are contained in the same releasing nut which is located at the upper end of the packer. Straight pull release is accomplished by shearing a predetermined quantity of brass retaining screws which frees the tubing.

Rotation release is accomplished by approximately eight right hand turns of the tubing which also frees the packer. Straight pull then is applied to completely relax the packer for retrieval. The SRHP packer can be ordered with only one method of release if desired. A positive acting equalizing valve is also located in the releasing section which automatically opens during the releasing procedure to equalize pressures and allow circulation between the annulus and tubing. In addition, a large diameter fluid by-pass is located inside the packing mandrel which allows fluid passage for rapid retrieving while reducing element swabbing

Production Tubes (Packer Accessories)

Type A Production Tubes

Are used at the end of tubing string to provide an extended inlet. The bottom end has a half muleshoe for easy entry to packer seal bore. Available in five and ten foot lengths. Not standard in some seal bore sizes.

Type B Production Tubes :

Are used at the end of tubing string to provide alternative flow path in cases where wireline measuring devices are used. The bottom end has a half muleshoe for easy entry to packer seal bore. Available in five and ten foot lengths. Not standard in some seal bore sizes.

Type C Production Tubes :

Are used at the end of tubing string to provide multiple inlets for flow. The bottom end is closed. Available in five and ten foot lengths. Not standard in some seal bore sizes.

Special Clearance Couplings :

Are used for connecting production tubes and / or other accessories below the production tubes. These couplings have a reduced outer diameter for clearance through the seal bore.

Seal Nipples Production Packers

COS Model 8 Anchor Latch Type Tubing Seal Unit–

Designed for latching the tubing string to the packer. Used where well conditions require the tubing to be landed in tension or where insufficient tubing weight is available to prevent seal movement. Production tubes, tailpipe and other accessories can be added below.

COS Model C Locator Type Tubing Seal Unit–

Designed for limiting downward movement of the seals in the packer bore. Normally landed with the tubing in compression sufficient to prevent seal movement upward. Any number of seal units can be added for increased length. Production tubes, tailpipe and other accessories can he added below.

Seal Types (Packer Accessories)

Standard Packing:

Composed of ten Nitrile chevron seals backed up by low alloy steel metal spacers. Suitable for non H2S environments not exceeding 300 degrees F@ 10,000 psi differential pressure. Some sizes and models are rated less 10,000 psi. See your COS representative for these exceptions. Should not leave seal bore in service.

Supreme 1 Packing:

Composed of eight Teflon and HNBR chevron seals backed up by stainless steel back up rings. This seal system is suitable for most environments. Recommended maximum operating temperature 300 degrees F@ 10,000 psi differential pressure (depending on size and environment). Some sizes and models are rated less than 10,000 psi. See COS representative for these exceptions. Should not leave seal bore in service.

Supreme 2 Packing:

Composed of eight Teflon and Viton chevron seals backed up by stainless steel back up rings. This seal system is suitable for most environments, except exposure to amine based fluids and steam. Recommended maximum operating temperature 400 degrees F@ 10,000 psi differential pressure (depending on size and environment). Some sizes and models are rated less than 10,000 psi. See your COS representative for these exceptions. Should not leave seal bore in service.

Supreme 3 Packing:

Composed of eight Teflon and Aflas chevron seals backed up by stainless steel back up rings. This seal system is suitable for most environments. Recommended maximum operating temperature 450 degrees F@ 10,000 psi differential pressure (depending on size and environment). Some sizes and models are rated less than 10,000 psi. See your COS representative for these exceptions. Should not leave seal bore in service.

Rite 1 Packing

Composed of Ryton, Teflon and HNBR chevron seals backed up by stainless steel back up rings. This seal system is suitable for most environments. Recommended maximum operating temperature 300 degrees F@ 15,000 psi differential pressure (depending on size and environment). Some sizes and models are rated less than 15,000 psi. See your COS representative for these exceptions. Should not leave seal bore in service.

Rite 2 Packing:

Composed of Ryton, Teflon and Viton chevron seals backed up by stainless steel back up rings. This seal system is suitable for most environments, except exposure to amine based fluids and steam. Recommended maximum operating temperature 400 degrees F@ 15,000 psi differential pressure (depending on size and environment). Some sizes and models are rated less than 15,000 psi. See your COS representative for these exceptions. Should not leave seal bore in service.

Rite 3 Packing:

Composed of Ryton, Teflon and Aflas chevron seals backed up by stainless steel back up rings. This seal system is suitable for most environments. Recommended maximum operating temperature 450 degrees f@ 15,000 psi differential pressure (depending on size and environment). Some sizes and models are rated less than 15,000 psi. See your COS representative for these exceptions. Should not leave seal bore in service.

Bonded Seals:

Composed of three bonded seals separated by metal spacers. Available in 70 and 90 Duro Nitrile, 90 Duro HNBR, 95 Duro Viton and 90 Duro Aflas. This seal system is used where seal movement cannot be prevented.

Seal Spacers(Packer Accessories)

Model B Non Locating Tubing Seal Unit

Intended for use as the lower seal assembly in multiple packer installations. With sufficient seal units mis-measurement or tubing movement can be accommodated. Production tubes, tailpipe and other accessories can be added below.

Spacer Sub Seal Units

Are used to add length and additional seal stacks to Model “C” Locator Tubing Seal Units or Model “B” Tubing Seal Units. These units allow for assembly of long seal lengths without building up excessive seal friction. With these, one set of seals will always be in the packer seal bore.

Spacer Tubes

Are used for spacing out seal units when seal bore extensions are in use. Available in lengths of two, four, six, eight and ten feet. Other lengths made upon request.

Add-on Seal Units

Are used to add additional seal stacks to Model “C” Locator Tubing Seal units and Model “B” Tubing Seal Units. Any number may be used to accommodate expected tubing movement. With these, two sets of seals will always be in the packer seal bore

Seal Unit Bottom Connectors(Packers Accessories)

These bottom connectors are used to accommodate re-entry or attachment at the bottom of the lowest seal unit.

Mill-Out Extensions

Both 6 foot and 10 foot lengths are available for use with the Model “J” and Model “L” Packers that will eventually be milled out. The extensions have the necessary lengths and inside diameters to accommodate the mandrel and catch sleeve of a milling tool. The extension can be directly attached to a box down pipe thread in the bottom of the packer. A connector sub connects the seal bore extension below the mill-out extension.

Seal Bore Extensions

Available in 5 foot and 10 foot lengths, providing extra long seal bores for the Model “J” and Model “L” Packers. The extensions maintain the same bore as in the packers. The extension can be attached directly to a box-down stub acme thread in the bottom of the packer. A tandem sub is available for connecting two extensions. A crossover sub allows tailpipe to be run below the packer.

Half Muleshoe

For easy entry on the bottom of the seal units when not using a production tube.

Box Down and Pin Down

Threaded box or pin connection down for accessories that need to go below the seal units.

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