PosiFrac Multi-Stage Hydraulic Fracture System
TAM’s one-trip PosiFrac Multi-Stage Hydraulic Fracture System is a complete service providing operators new options for completing horizontal wellbores. It enables highly accurate, positive placement of fractures with minimal or no intervention activity.
• FREECAP Industry-leading swellable packer technology
• Effective fracture stimulation maximizing reserves and well efficiency
• Flexible system that adapts to well characteristics
• Reliable, proven fracture sleeve technology
• Up to 35 fracture stages available
• Simplified system offers dependability and reduces risk
TAM International’s PosiFrac Multi-Stage Hydraulic Fracture System offers a flexible, reliable means of completing horizontal open hole laterals-providing maximum stage isolation specific to the customer’s wellbore environment. Each component of the PosiFrac System offers unique benefits over similar products in competing systems.
The PosiFrac Multi-Stage Hydraulic Fracture System is an all-inclusive service providing operators a complete system that enables highly accurate, positive placement of fracture treatments for hydraulically stimulating a horizontal wellbore. The PosiFrac System has five main components– the liner top packer, FREECAP swellable packers, Ball- Activated Fracturing Sleeves, a Hydraulic-Activated Fracturing Sleeve and a Circulation Closing Valve. The system is conveyed using a liner hanger running tool that enables reliable, trouble-free installation.
FEATURES
• Industry-leading swellable technology in the FREECAP swellable packer provides a positive annular barrier for the required fracture pressures
• Annular isolation fits the well’s completion fluid design and does not require circulation of an initiation fluid
• The Ball-Activated Fracturing Sleeves provide a large flow area from liner ID to annulus, allowing for efficient stimulation placement
• Torque-thru design allows for ease of makeup and installation in the wellbore
• Ball seats are designed for erosion resistance and milling efficiency
• System uses industry-proven dissolvable balls
BENEFITS
• Running costs and safety issues related to perforating guns and bridge plugs are eliminated
• Completion cycle time is reduced
• Open hole completions provide free access to natural fractures, improving wellbore-to-reservoir communication
• Swellable packers reduce risk of formation damage from hydraulic/mechanical systems and provide flexibility for maximum wellbore contact with improved sealing in irregular wellbores
• Variety of swellable packer elastomer compounds allows for customization of completion to match wellbore environment
• Proven sleeve design allows for maximum reliability
LINER TOP PACKER
TAM offers a selection of hydraulically activated dual bore liner top packers. Typical configuration is with a tieback receptacle and a right-hand release running tool. The packer can be set in a variety of casing sizes and weights. The setting port of the liner top packer is isolated with the running tool while running in hole, eliminating the possibility of premature setting. Additionally, proprietary slip design greatly reduces potential for presetting.
PROVIDE SOLUTIONS FOR
Horizontal open hole multi-stage hydraulic fracturing completions
FEATURES
The hydraulic packer is set with a pressure-isolating setting tool that is run in hole and includes a ball seat
Full circle slips ensure a robust design
The dual seal bore provides full ID with the use of a frac string or production string
Expandable metal backup rings provide a metal-to-metal barrier with the casing wall
Left-hand thread on the top seal bore allows use of an anchor latch
BENEFITS
Isolation of the setting port while running the system in hole
Pressure application at the tool versus relying on pressure integrity throughout the entire liner
Allows maximum seat size in the frac sleeves
Prevention of element extrusion
Easy snap-in and right-hand rotation out of the packer
Reduced potential of presetting while running in hole
FREECAP SWELLABLE PACKER
Positive zonal isolation can be achieved with FREECAP swellable packers, which allow for any one of a number of swellable elastomer compounds to be used depending on wellbore conditions. This variety of compounds allows TAM to design a completion based on the customer’s wellbore conditions rather than requiring the customer to change the wellbore conditions to accommodate the packers.
Typical seal length is 5 ft, which provides up to 7,500 psi differential pressure rating. A 15,000 psi differential pressure rating can be achieved by increasing the seal length.
BALL-ACTIVATED FRACTURING SLEEVE
The Ball-Activated Fracturing Sleeve (BFS) is a component of the system used as a means to establish direct communication between the liner/casing string and the formation. Multiple sleeves installed on the liner string are operated by releasing graduated ball sizes, which land on the corresponding ball seat. Pressure is then applied to shift the sleeve to the open position, allowing the formation to be fractured.
PROVIDE SOLUTIONS FOR
Horizontal open hole multi-stage hydraulic fracturing completions
FEATURES
Up to 35 Stages available
The ball seat is rotationally locked in both open and closed positions
The lock-open feature is engaged immediately after the sleeve opens
Full liner/casing string ID is restored after the ball seat is milled
The composite ball material ensures high-impact resistance and high differential pressure capability
Dissolvable ball material available
Optimized ball/seat bearing areas
BENEFITS
Screen-out recovery in the lock-closed position for milling, without risk of prematurely opening the sleeve
Allows use of conventional cased hole tools after mill-out
Fast and efficient milling operations with composite ball and cast-iron ball seat
Operational flexibility during installation of system
HYDRAULIC-ACTIVATED FRACTURING SLEEVE
The Hydraulic-Activated Fracturing Sleeve (HFS) is an interventionless fracturing sleeve that incorporates redundant opening functions. Differential pressure is created by applying pressure against the setting ball in the Circulation Closing Valve. When a predetermined shear pressure is reached, the sleeve opens. Once opened, the sleeve can be used for stimulation of the first zone and/or as the flow path to pump the ball down to the first Ball-Activated Fracturing Sleeve.
PROVIDE SOLUTIONS FOR
Horizontal open hole multi-stage hydraulic fracturing completions
FEATURES
The fracturing sleeve opens with differential internal pressure
A redundant sleeve opening system provides a built-in backup
The lock-open feature is engaged immediately after the sleeve is opened
Large flow area through the ports is greater than the casing flow area
BENEFITS
No intervention required to open sleeve
Added reliability in ensuring communication to formation
Eliminated risk of sleeve inadvertently closing during stimulation or production
No restrictions during stimulation or production
CIRCULATION CLOSING VALVE
The Circulating Closing Valve (CCV) assembly is designed to be used at the toe of the liner system. The CCV allows for circulation as the PosiFrac System is being run in hole. A ball actuated mechanism isolates the internal casing pressure, enabling activation of the Hydraulic-Activated Fracturing Sleeve with pressure.
PROVIDE SOLUTIONS FOR
Horizontal open hole multi-stage hydraulic fracturing completions
FEATURES
The ball-activated valve assembly has a built-in backup with redundant ball seats
Positive locked-closed system
A large circulation area and direct flow path ensures large fluid bypass
The ball seat can be readily milled out with conventional milling Bottom Hole Assembly (BHA)
BENEFITS
Increased operational reliability
Bi-directional barrier enabled pressure test and well control
Reduced risk of plugging while circulating heavy drilling fluids
Easily obtained access to wellbore
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