Description:
The Stinger Mix Master is designed to effectively isolate the surface equipment while fracturing down the annulas with the tubing as a dead leg or both annulas and tubing. The Mix Master provide a mandrel and patented sealing assembly mounted on the bottom end for pack-off in the casing of the well to be stimulated. The Mix Master is locked into place with a lockdown nut that prevents upward movement by fluid pressures from within the well bore.

Specifications:
Pressure Rating: 69 MPa (10.000 psi) working pressure
Size specifications (sour and non-sour)”
114 mm (4 ½ in.) max rate 3 m3/min down the annulas
137.7 mm (5 ½ in.) – 244 mm (9 5/8 in.)max rate with 73mm (2 7/8 in.) tubing is 6m3/min
max rate with 60.3 mm (2 3/8 in.) tubing is 8 m3/min
Higher rates can be achieved by pumping down both the annulas and the tubing.

Features:
The Stinger Mix Master is a low profile tool that reduces both operational cost and time. Provided with the tool at no additional cost is a working platform. The platform is complete with handrails and ladder for easy access. Additional stairs can be attached and are available upon request.

Mix-Master Advantages:
1. Eliminates killing the well as the tool can be installed and removed under pressure.
2. Reduces rig time since there is less tripping of pipe.
3. Generally eliminates snubbing.
3. Packer not required.
4. Allows flow-back for cost effective cleanout.
5. Permits circulation of sand for cleanout via tubing or annulas.
6. Allows for the installation of perforating guns prior to tool installation.
7. Full bore facilitates swabbing and running down hole equipment.

Installation and Removal:
The Stinger Mix Master provides the convenience of installation and removal without killing the well. A service rig lifts the tubing string to position the tubing hanger inside the spool making it possible to close the hydrill and bleed off any pressure. Once the tubing hanger is pulled into the spool the hydrill is closed and any pressure is bled off. The tubing hanger is then removed by placing the tubing in the slips  and the Stinger Mix Master is installed. The removal of the tool and reinstallation of the tubing hanger requires reversing this procedure. Tubing weight must be calculated and a pressure chart consulted to ensure that tubing is pipe heavy for safe installation of tool or tubing hanger. Stinger designed hydraulic rams* can be utilized with the Mix Master in the event the tubing is not pipe heavy.  Please note that a tubing plug must be set prior to installation or removal if the wellbore is under pressure.
*Hydraulic rams available by special request only.

Special Notes:
Stinger Wellhead Protection (Canada) Inc. has made it our policy that frac balls are not to be pumped down the annular valves. This can result in damage to the tool and has the potential to cut off the tubing string.