WellRx “AVAK” Series Non-Profile Plugs

The WellRx “AVAK” Series Non Profile Bridge Plug was developed in response to the oil and gas industry move towards Mono-bore well designs. The initial driver behind the development was to design a bridge plug suitable for Slick line setting using mechanical manipulation alone. This was designed to reduce operational costs associated with electric line and remove the need for radio silence when using explosives. To cater for applications where depth control or high angle access became necessary coiled tubing, drill pipe and electric line setting adaptors have been developed allowing the user total flexibility. The use of a standard base AVAK plug assembly in conjunction with slip or full option kit reduces inventory costs.

Features

• 2-3/8in. to 7in. sizes available as standard.
• High expansion ratio.
• Range of setting methods.
• Proven release mechanism.
• Full range of flow control accessories available as standard package.
• Reduced inventory costs: one AVAK base plug can service large range of tubing weights.
• Flexible setting methods: Slick line, coiled tubing, drill pipe and electric line set.

Application

• Barrier during maintenance and work-over operations.
• Contingent plugging of completions with damaged nipples.
• Zonal isolation, water and gas shut off.
• Tubing leak investigation.
• Data acquisition near to producing intervals.
• Flexible setting methods: Slick line, coiled tubing, drill pipe and electric line set.

WellRx “AKSAT” Series TT Packers

The WellRx “AKSAT” Series packer is a large-bore tool that can be used in a variety of intervention applications and is run on coiled-tubing, slickline, and wireline as well as conventional tubing in existing completion strings. As the result of running thru tubing, this packer passes ID restrictions (such as nipple sealbores, sliding sleeves, safety valves and other tubing mounted devices), and is then set – packing off (bridging) large extrusion gaps and sealing against high pressure at high temperature. AKSAT provides superior sealing ability during pressure reversals and changes in temperature – conditions that often cause conventional packers to leak.

Features:

• Large bore provides an optimized flow area, increasing production volume
• Converts into a one-trip straddle system, facilitating intervention operations
• Capabilities enable high-pressure operation providing operational flexibility.
• Multiple conveyance methods enhance operational versatility, promoting WidePak II use in remote or costly locations.
• Straight-pull, low-force release provides easy retrieval, making this tool ideal for use in deviated or horizontal applications.

Application:

• Used to straddle perforations, tubing connections, corroded tubing, and other tools in the tubing string to provide zonal shutoff or to control flow or leaks.
• Well suited for mono-bore wells that require screen hang-offs and tubing extensions.
• Used with a safety valve to replace and original malfunctioning valve in the tubing string.

WellRs “VATA” Series Straddle System

The WellRx “VATA” Series Straddle System is used for temporary or permanent isolation of tubing sections, perforations, or windows. The large packer throughbore enables maximum production after setting, and it permits access for a wide variety of intervention operations. VATA system can be run on coiled or jointed tubing and electric line with most common hydraulic and e-line setting tools.

Features:

• A large bore provides optimized flow area for increased production and facilitates intervention operations through the straddle.
• A sliding sleeve can be incorporated between elements to enable selective zonal isolation.
• The straddle packer can be installed and retrieved on slickline, braided line, or coiled tubing in a single trip, minimizing downtime.
• Multiple conveyance methods for the packer enhance operational efficiency and promote its use in remote or costly offshore operations.

Application:

• Temporary and permanent zonal isolation
• Tubing patch
• Water shutoff
• Zonal abandonment
• Deviated and horizontal wellbores

WellRx “KARP” Series Tubing Patches

The WellRx “KARP” Series Tubing Patch System is used to isolate zones, perforation intervels or leak points. Post patch installation, the segments above and below the zones/intervels are connected with spacer pipes to create an effective patch that will by-pass the zone/interval. Patches are used for temporary or permanent isolation. The large packer throughbore enables maximum production after setting, and it permits access for a wide variety of intervention operations. KARP system can be run on coiled or jointed tubing and electric line with most common hydraulic and e-line setting tools.

Features:

• A large bore provides optimized flow area for increased production and facilitates intervention operations through the straddle.
• A sliding sleeve can be incorporated between elements to enable selective zonal isolation.
• The patch deployment packer can be installed and retrieved on slick line, braided line, or coiled tubing in a single trip, minimizing downtime.
• Multiple conveyance methods for the packer enhance operational efficiency and promote its use in remote or costly offshore operations.

Application:

• Temporary or permanent zonal/interval isolation.
• Leak isolation.
• Deviated and horizontal wellbores.

WellRx “GURV” Deep Gas Lift System

The WellRx “GURV” Deep Gas Lift delivers gas lift regardless of completion packer setting depth. GURV system can be set across an existing gas lift mandrel to deliver lift gas deeper into the wellbore, or it can be used to straddle a punched hole within a completion to allow a well to be converted to gas lift without the need to perform a workover on the well. GURV consists of a lower packer with slotted joint and PBR. The lift-gas string is attached to the bottom of the PBR and then run in the hole. After the lower packer is set, an upper packer with spacer pipe, crossflow sub, gas injection tube and anchor latch seal assembly is run in the well. The packers straddle the gas-lift mandrel or punched holes. Lift gas is directed from the casing-tubing annulus into the crossflow sub, down the gas-injection tube, and into the lift-gas string. Production enters thru the slotted joint and up through the crossflow sub, continuing to surface through the production tubing.

Features:

• The WellRx GURV deep gas lift system enables deeper gas injection than is conventionally possible, delivering lift gas closer to the perforations to increase production and extend the life of the well.
• The entire system can be installed with coiled tubing, making this a rigless solution that helps lower operational costs.
• Optimized flow areas reduce back pressure for increased production.
• Compliant in gas wells.
• It is fully retrievable, to enable future interventions.

Application:

• Extending the reach of lift gas deep beyond the setting depth of the completion packer.
• Converting well to gas lift without need of a rig workover.

WellRx “VESU” Velocity String System

The WellRx “VESU” Series Velocity String System is a small-diameter tubing string run inside the production tubing of a well as a remedial treatment to resolve liquid-loading problems. As the reservoir pressure in a gas well depletes, there may be insufficient velocity to transport all liquids from the wellbore. In time these liquids accumulate and impair production. Installing a velocity string reduces the flow area and increases the flow velocity to enable liquids to be carried from the wellbore. Velocity strings are commonly run using coiled tubing as a velocity string conduit. Safe live-well working and rapid mobilization enable coiled tubing velocity strings to provide a cost effective solution to liquid loading in gas wells.

VESU System comes armed with all ingredients and variations: Velocity String Hanger Packer, Deployment Tools, LTSA, Stinger etc.

WellRx “VESU” Velocity String System

The WellRx “VESU” Series Velocity String System is a small-diameter tubing string run inside the production tubing of a well as a remedial treatment to resolve liquid-loading problems. As the reservoir pressure in a gas well depletes, there may be insufficient velocity to transport all liquids from the wellbore. In time these liquids accumulate and impair production. Installing a velocity string reduces the flow area and increases the flow velocity to enable liquids to be carried from the wellbore. Velocity strings are commonly run using coiled tubing as a velocity string conduit. Safe live-well working and rapid mobilization enable coiled tubing velocity strings to provide a cost effective solution to liquid loading in gas wells.

VESU System comes armed with all ingredients and variations: Velocity String Hanger Packer, Deployment Tools, LTSA, Stinger etc.

WellRx Through Tubing Fishing System

WellRx provides a full range of spears, overshots, and retrieving tools that are used to efficiently remove wellbore obstructions. Our thru-tubing fishing tools—applied with industry-leading fishing experts to put the well back online safely and reduce the cost of wellbore problems. WellRx experience and equipment combine to deliver a clear wellbore with minimal downtime in virtually every fishing application.

WellRx Through Tubing Milling System

WellRx offers a wide array of common mills and bits, including specialized designs. These, along with a rugged motor designed to handle harsh conditions in horizontal wells, simplify the process of milling plugs, valves, concrete, etc. When faced with a long lateral and multiple stages in plug and perf operation, you need a thru-tubing milling provider that can get to the toe of the well, on time and on plan. We offer a full range of milling tools and techniques for through-tubing milling intervention. Whether there is loose junk in the well (bit cones, tong dies, packers, etc.) or stuck pipe, we can get the well back on line safely and efficiently. Our ability to source the right milling tool for the job—coupled with our expertise—can get the plug-and-perf wells on production reliably, and can solve obstruction problems safely and predictably.

WellRx “NAVI” Series Tubing Stop

The WellRx “NAVI” Series Tubing Stop is a wire line-retrievable tool used in conjunction with WellRx NABA-Series Tubing pack off. NAVI-series Tubing stop utilizing a slip cone combination that’s locks stop in tubing ID and prevent any movement in either direction. NAVI Series Tubing Stop are usually run and retrieved on wire line. The Tubing Stop usually run in lock position with shear pin that’s break by jar down operation during Pack Off retrievable. Standard tubing stops hold pack off assemblies in place and help to maintain seal compression.

BENEFITS:

• Hold upper and lower assemblies in place.
• Set at desired place in tubing.
• Can stop movement in either direction.
• Slip cone design provide reliable stop in tubing.
• Internal fish neck provide more ID for maximum flow.
• Only operate with jar down.

Application:

• Can be used to retain wellbore pressure, this is typically done in the case when there are an absence of profile landing nipples in the wellbore, or when these cannot be accessed.
• Can also be ran as a straddle pack off to isolate the tubing string if there is suspected damage or unwanted communication between the annulus and tubing string.
• Single Point Gas Lift installation.

WellRx “NABA” Series tubing Pack-off

The WellRx “NABA” Series Pack Off is a wire line-retrievable tool used to isolate and control communication between the tubing and the annulus. The TP pack off is used primarily to install gas-lift equipment in wells without a side-pocket mandrel. It is also used to isolate and patch a hole in the tubing or to isolate a leaking gas-lift mandrel or valve. NABA pack offs are usually run and retrieved on wire line. The pack offs use an elastomer-type element to seal in the ID of the production tubing. Standard tubing stops hold pack off assemblies in place and help to maintain seal compression. Accessory equipment includes stingers, receptacles, and spacer pipe for longer isolation intervals and for running the upper and lower assemblies separately.

BENEFITS:

• The positive-lock ratchet mechanism maintains compression on packing elements, ensuring proper down hole installation of the tool.
• The internal GS-type running and pulling neck provides a larger flow area.
• Aluminum shear pins prevent premature setting during running operations.
• The packing element returns to its original shape when relaxed, thereby easing removal by eliminating drag and rolling of the packing element during pulling operations.
• Packs off parts are keyed, allowing proper redressing of the pack off in the field by one person, without special tools.
• The standard packing element is made of 90-durometer VITON® for optimal durability and sealing characteristics. Other packing element materials are available for special applications.
• Optional stinger and receptacle allow separate running of the upper and lower seal assemblies and can also be used to run multiple sections of spacer pipe.

Application:

• Pack offs are used to isolate holes in the tubing.
• They are used to install tubing-retrievable gas-lift valves in wells in which a gas-lift system was not originally installed.
• Tubing pack offs are also used to replace leaking gas-lift mandrels or valves.