Anchor Seal Assembly

The anchor tubing seal assembly is used as an alternative to set-down weight; it prevents seal movement or is used when it is preferable to land the tubing in tension. The anchor tubing seal assembly is run in on the production string. Set-down weight causes the anchor's threaded latch to engage the corresponding threads in the top of the packer. Once engaged, the anchor and tubing are securely locked in place. Any tubing contraction will cause a tensile load to be applied to the tubing string. Care must be taken to ensure tensile forces that develop will not part the tubing whenever an anchor is used. To release the anchor, it must be rotated to the right 10 to 12 turns at the packer.

Key benefits
- Premium thread has been utilized instead of O-ring in extension
- A solid nut anchor with special 2 TPI left hand square thread creates a
metal to metal seal with the acker when sufficient set down is applied

Rachet Latch

The Rachet Latch is used as an alternative to set-down weight; it prevents seal movement or is used when it is preferable to land the tubing in tension. The anchor tubing seal assembly is run in on the production string. Set-down weight causes the anchor's threaded latch to engage the corresponding threads in the top of the packer. Once engaged, the anchor and tubing are securely locked in place. Any tubing contraction will cause a tensile load to be applied to the tubing string. Care must be taken to ensure tensile forces that develop will not part the tubing whenever an anchor is used. To release the anchor, it must be rotated to the right 10 to 12 turns at the packer.

Key benefits
- Premium thread has been utilized instead of O-ring in extension
- A solid nut anchor with special 2 TPI left hand square thread creates a
metal to metal seal with the acker when sufficient set down is applied

Permanent Packer

The Dana Oil Tools packer is a hydraulically set permanent packer that features the largest possible bore through combined packer and seal accessory. This Packer is run to depth, connected to the tubing with a compatible Anchor Seal and set by applied tubing pressure. This makes the packer ideal for use in high angle deviated wells.

Key benefits
- upper seal bore with a left hand square thread
- chevron backup seals for insufficient set down load
- metal to metal seal by sufficient set down load in anchor
- full circle slips for evenly load distribution on casing wa

Retrievable Packer

The Dana Oil Tools retrievable sealbore packer is a reliable, high-pressure packer for production, gravel-packing, and injection. It can be set on wireline or on tubing with a hydraulic setting tool and can be run with tubing-conveyed perforating (TCP) guns suspended beneath. High pressure thermal packing element provides an excellent seal that enables the packer to pack off and to resist swabbing. The packer can be retrieved with a pulling tool on a work string, and the rotationally locked components facilitate milling when normal retrieval is impossible.

Key benefits
- The packer can be set by wireline or by a hydraulic tool, which provides
flexibility in deployment.
- Hydraulically setting the packer avoids the need to rotate the work string
while running or retrieving the packer and therefore simplifies procedures,
improves efficiency, and saves rig time.
- high pressure thermal packing element reduces the swab-off effect and
facilitates center packoff by enabling a supporting force to be applied to
the outer elements.
- The components are rotationally locked to enable rotation into liner tops
and horizontal sections, which saves rig time

Applications
- High-pressure production or injection
- Stimulation and fracturing
- Operations with TCP guns run below the packer
- High-rate gravel packing
- Anchored or floating seal applications
- Deviated and horizontal wells

Sealbore Extension

An optional upper polished bore receptacle (PBR) or Sealbore Extension above or below the packer and seal system has been designed for the hydraulic retrievable or Permanent packers to provide a stroke of up to 20 ft. This system allows for a floating seal to compensate for tubing elongation or contraction, and it maintains the large bore through the packer, PBR, and seal assembly. The system also retains the single-trip feature.

Key benefits
- Seal units are retrievable without disturbing the
- production packer
- Wide variety of corrosion-resistant alloys and elastomers available
- Predetermined space out available through a variable spacing shear ring
- Maintains maximum available IDs through the packer assembly
- Allows a single trip
- Allows easy retrieval of the seal units without disturbing the
- production packer

Features
- Metal-to-metal premium thread connections
- A standard option wiper ring/debris barrier
- Minimum thread connections
- Single-piece lengths of 10 and 20 ft
- Variable spacing shear ring

Mill-Out Extension

A mill-out extension can be run directly below a seal bore packer or seal bore extension. For permanent packers, the mill-out extension is required to accommodate the mandrel and catch sleeve of the packer milling tool during packer milling. In the case of a retrievable seal bore packer, the mill-out extension will accommodate the mandrel and catch sleeve of the retrieving tool.

Traveling Joint

The Expansion Joints are designed to be used in single and dual - string completion to accommodate changes in tubing length caused by variations in pressure, temperature or both and reduce the chances of over stressing the well tubing during production, acidizing, fracturing and other well operations. A honed alloy-steel cylinder gives these joints good dynamic sealing performance as well as high body and end-connection burst, collapse and tensile strength. Splined piston can transmit required make up and shearing torques.

Key benefits
- Torque transmit feature
- Precise adjustable shearing valve
- Adjustable pinned length at intervals of 1ft
- Tubing longitudinal movement toleration up to 20 feet
- 4 sets of reliable VTR dynamic sealing units maintaining pressure all over stroke

Tubing Locator seal assembly

Dana Oil Tools' seal assemblies for permanent and retrievable sealbore-type packers act as a seal between the tubing string and the packer. If components will be exposed to corrosive fluids, the seal’s standard alloys may be plated for extra protection or manufactured from corrosive-resistant alloys. A seal assembly consists of three major components:

1- No Go Locator
No-go locators are used with permanent packers with the short Ratch-Latch type receiving head. These locators provide a positive locating stop for the tubing at the packer. These locators can be provided with the correct spacing between the no-go and seals because the lower end is machined to accept either molded seals or premium seal units.

3- Muleshoe guide
Muleshoe guides provide a means to guide the end of the tubing away from the casing wall, then enter liner tops or the packer bores. The length of the muleshoe varies with the application, from centralization, to seal guide and protection, to flow isolation sleeve.

2- Molded or premium seal units
Dana Oil Tools offers molded and premium seal units. Molded seals are recommended for applications in which the seal will be going in and out of the sealbore. Premium seals are ideal for applications requiring the seal units to remain in the sealbore. All seal units are designed for easy field redress. The geometry of the seals enables them to provide more positive seal as they are subjected to higher pressures and temperatures. Many types of seal units are available, and others can be designed to fit specific needs. Premium seal units are v-packing seal systems of either elastomeric or plastic materials with a plastic and metal backup system. The lips of the v-ring are designed to have an initial interference fit with the sealbore. The lips respond to pressure increases by flexing outward. Various backup material combinations can be used with each v-packing seal to make it suitable for different temperatures and pressures.

Side Pocket Mandrel

Dana Oil Tools' side pocket mandrels are designed with a round cross-section body and are available in a variety of tubing threads and sizes for installation as part of the tubing string. Standard non-orienting kick over tools are utilized in this mandrel to install and retrieve flow control devices by standard wireline methods.

Key benefits
- Compatible with other manufacturers’ flow control devices
- All mandrels are made from fully traceable material

Chemical Injection Mandrel

Injection Valve

Dana Oil Tools' Injection Valve consists of a tail plug, bellows assembly, bellows housing, stem with tungsten carbide ball, seat housing with a floating seat, and packing retainer and check nose with reverse flow check dart. The valve is available in either stainless steel or nickel alloys for corrosion resistance in wells with high concentrations of H2S and/or CO2. Packing and elastomeric materials for the valve are available for standard service or special service to suit individual well conditions

Key benefits
- Stainless steel or premium materials.
- Three ply Monel bellows.
- Teflon rings installed in each inside and outside
- Bellows convolution prevents distortion and knife-edging which
can lead to rupture, while - extending the life of the bellows.
- Mechanical stop prevents bellows over stroke.
- Viscous fluid shear dampening prevents bellows fatigue and
stem-seat pounding.
- Replaceable floating Monel seat
- Integral reverse flow check valve.

Dummy Valve

Dana Oil Tools' 1" and 1.1/2" Wireline Retrievable Dummy Valves are manufactured to meet the requirements of API 11V1 specifications. They are installed in side pocket mandrels as a non-equalizing isolation tool. The Wireline Retrievable Dummy Valve is an isolation tool designed to blank communication between the tubing and casing. This valve can be used to blank off a side pocket mandrel. The Dummy Valve is available in either Stainless Steel or Nickel alloys for corrosion resistance in wells with high concentrations of H2S and CO2. Packing for the valve is available for standard service or special service to suit individual well conditions. The distance between the packing stacks is maximized to fully protect the mandrel pocket seal bores from produced fluids until they are removed from the completion. The simple design of the dummy valve allows for easy replacement of the packing and for rapid low-cost repair of its components. The rugged, solid construction and quality metals provide for a long service life.

Key Benefits
- Standard construction is stainless steel, with monel or other premium materials optional.
- Wireline retrievable by standard methods.
- Use standard top latches.
- Temperature rating of 250°F (121°C) (Standard Service)
- Maximized packing separation for complete seal bore protection in the mandrel pocket.
- Standard Neoprene packing with other materials available.
- Compatible with other manufacturers side pocket mandrels.

Applications
-To blank off the tubing while completing the well / prior to pressurizing the tubing to set a
hydraulic set packer.
- To blank off the tubing for production until gas lift valves are required.
- To allow the tubing to be pressurized in various situations.
- To isolate the tubing and casing during single alternative production sequences.
- To isolate tubing and casing flow for test purposes during multi-point water flood or gas
injection modes.
- Allow for production prior to installation of the Gas Lift Valves
- Isolate tubing from casing annulus during remedial work such as acidizing or fracturing.

Valve Latch

Dana Oil Tools Wireline retrievable Latches are designed for installation in G-type pocket profile Side Pocket Mandrels. They utilize a locking ring which is held in position by spring forces. As the Latch enters the Pocket latch profile, the locking ring moves up and into the recessed area of the latch. When the latch seats, the ring is positioned in the locking recess of the Pocket. To retrieve the Latch, a pin is sheared by upward force allowing the locking ring mandrel to move up and out of the way. The ring is then freed to disengage from the locking recess as the valve and Latch is retrieved.

Kiekover Tool

The Kick-over tool is used to install and retrieve valve and latch assembly into/from the Side pocket mandrels

Operation
The Kick-over tool is lowered into the well by standard wireline techniques until the tool is below the selected mandrel. As the tool string is raised, the locator finger of the Kick-over tool contacts the top of the slot in the orienting sleeve in the mandrel, and the kick spring pivots the lower section of the Kick-over tool, the pulling or running tool and the valve into the Kick-over position. The orienting sleeve in the mandrel provides positive installation and retrieval of the flow control device by the Kick-over tool. Once the flow control device is installed or retrieved, and the wireline operator raises the Kick-over tool the latch spring is compressed thus permitting the Kick-over tool to pass through all mandrels above the one in which the wireline operation was performed.

Sliding Side door

The Dana Oil Tools' SSD is high performance, Non-elastomeric equalizing sliding sleeve. The tool is designed such that any lock profile and compatible seal bores can be specified and ordered to accept a wide range of Wireline Locks, and accessories. The sleeve is available in downshift-to-open or upshift-to-open versions.

Top No Go Nipple

Dana Oil Tools No Go Nipples are downhole tubing nipples that provide for the location of various wireline flow control devices in the production string. The location and number of Top No-Go Seating Nipples should be carefully considered in the completion planning stages to allow maximum versatility in the positioning of various flow control devices. Nipples contain a no-go shoulder used to locate and set the flow control device being run into the well.

Key benefits
- Land equalizing check valves
- Land circulating blanking plugs
- Land velocity type safety valves (SSCSV)
- Land blanking plugs to shut in or test the production tubing

Lock Assembly

The Dana Oil Tools lock mandrel is a top no-go style lock. With a no-go shoulder located just below the locking dogs, this lock will land and lock flow control devices in the corresponding seating nipples.Lock selection should be compatible with the size and model designation (based on designed pressure rating) of the selected seating nipple. Dana Oil Tools' Locking Mandrels are fully compatible with Baker’s Model “AF” No-go Nipples and can be run with a Model “A” Running Tool and model “D” Probe.

Key benefits
- The lock and running tool are compatible with normal wireline equipment and procedures.
- Locking mechanism in located above the seating elements, therefore no O-rings are required
- Running tool gives a positive indication that lock is set in the nipple and that the locking operation is complete
- Smooth bore through the lock does not subject the operating mechanism to corrosion or sticking by foreign materials

Bypass Blanking Plug

Bypass Blanking plug, with the selected lock attached, is run in and set without the removable mandrel in place, thus, providing a large fluid bypass area and allowing fast run-in time. The mandrel is then run in and landed inside the plug, blanking off the bypass ports. Equalization is accomplished by pulling the removable mandrel from the plug and opening the bypass ports to pressure. The plug itself is then pulled using conventional running and pulling tools.

Key Benefits
- Equalizing ports must be opened before access to the fishing neck can be obtained.
- Can be ordered with chevron seals on the removable mandrel for temperatures to 450°F.
- The two-trip system is suited for sandy service. By retrieving the mandrel, the flow through
ports help clean up debris.
- Optional internal fishing neck can be provided for the removable mandrel. This allows the
operator to retrieve the removable mandrel with the same tool as the loc

Shifting Tool

Shiftingtools are used to move the inner sleeve to its open or closed position in Sliding Side-Door circulating devices. The shiftingtool engages the recess in the upper (or lower) end of the inner sleeve to permit the sleeve to be shifted by a jarring action. The tool is designed to release itself only after the sleeve reaches its fully open or closed position. This automatic-releasing feature incorporates a releasing profile on the key itself that acts to compress the key spring and release the positioning tool. A shear pin is an added feature designed to release the tool in the event well conditions make it impossible to shift the sleeve.

Key benefits
- Automatic locating
- Proof of completed shift
- Emergency release feature
- Adjustable shear release values
- Common thread connection – allows any combination of wireline prohibitive tools to be attached to it

Running Tool

Dana Oil Tools’ Running Tool is designed to prevent accidental setting even if tight spots are encountered while running in the well. The running tool and lock will not separate until the locking dogs on the locking mandrel are fully expanded into the nipple locking profile. If this does occur, the running tool will not release and will bring the lock back out of the well when retrieving the running tool. Once the lock sets inside the nipple, the running tool dogs retract and release the fishing neck. The running tool returns the surface after shearing the pin in the extension probe leaving the lock securely in the seating nipple. Dana Oil Tools' running tool is fully compatible with Baker’s Model “AF” locks.

Key Benefits
- Minimal running and retrieving tools requirement
- Several lock sizes can be run with same running tool.
- Running tool is in accordance with accepted wireline procedures.
- Tell-tale ring provides positive indication of successful lock setting
- Running tool simply constructed–no collets, springs, or plunger to move up or down to manipulate lock into a locating position.

Running / Pulling Tool

Running/Pulling Tool is a basic wireline device which connects a wireline tool string to a wireline retrievable flow control device that is to be run into or retrieved from a well. This Running/ Pulling Tool is designed to engage an internal type fishing neck. The tool is offered in a wide range of sizes.

Key Benefits
- Easy retrieving system
- Compatible with various types of Lock Mandrels
- Can be utilized as Running Tool as well as Pulling Tool
- Can be utilized for pulling out subsurface safety valves using X-prong Extension