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  • COLOSSUSPremium Liner Hanger System

  • COLOSSUS

    The COLOSSUS* premium rotational liner hanger system was designed to meet such challenges. Each component is engineered to optimize the load, pressure, and bypass ratings of the complete system and can be pushed, pulled, and rotated as required to work the string to total depth.

    Hydraulically set and released, this system is designed for deepwater and deep onshore wells, high-pressure, high-temperature (HPHT) environments, and horizontal, extended-reach, tight, and deviated wellbores requiring high-hanging and drill-down capabilities.

    Deep wells create special challenges for liner hanger systems. In highly deviated

    boreholes, for example, the liner hanger must withstand high-

    torque and high-tensile loads.Using the COLOSSUS liner hanger system can reduce casing costs, improve cement jobs, minimize formation damage, and maximize well control during the comple-tion operation.

  • FROM CONCEPT TO COMPLETION

    The COLOSSUS liner hanger system has been developed through research, testing, and reli-able field performance.

    Design. During the new product design phase, engineers study the effects of pressure and temperature on liner hanger system compo-nents, including rapid analysis of the forces, stresses, and movement in the wellbore, and numerical screening techniques such as finite-element analysis. These programs are applicable to both simple and complex well conditions and help optimize product design

    and reduce product development cycle time. The results and feedback required to design a successful well completion provide precise design specifications for manufacturing.

    Manufacturing. Schlumberger uses the latest computer numerical control machine tool technologies to precisely manufacture liner hanger components according to design specifications.

    Qualification testing. Temperature, pressure, and load prerelease tests are conducted on system components at engineering test facilities in Houston to meet both industry-

    and client-specific requirements. Testing parameters are visually monitored, fully documented, and compliant with ISO 14310 V3 and V0 industry standards.

    Liner hanger components are tested individu-ally for hanging and load capacity, pressure and temperature conditions, tensile and torsional capabilities, and for torque, burst, and collapse resistance. The entire liner hanger system is function tested to ensure that each component will work in conjunction with the others when deployed in the well.

    Protect the integrity of your completion.

  • COLOSSUS LINER HANGER SYSTEM

    The COLOSSUS liner hanger system features a high-capacity rotating liner hanger (HCHR), a PV liner top packer, a running tool with optional release mechanismshydraulic (CRT), mechanical (RRT), hydromechanical (RRT-HM)and cementing accessories.

    HCHR high-capacity rotating liner hanger Enhanced hanging capacity Fully pocketed slips Anti-preset mechanism Optimized bypass

    Landing collar Collar that ensures rapid

    and complete drillout

    Float collar Collar used when running and

    cementing liner casing strings Collar that prevents uncured cement

    in annulus from cycling back to liner after displacement

    LWPC liner wiper plug Prole for pump-down plug

    to latch and seal Mechanism for wiping cement

    from inside liner and keeping it separated from displacing uid

    Locking mechanism to protect against backpressure

    Antirotation feature that reduces drillout time

    Reamer oat shoe Shoe that enables system

    to reach target depth

    RBS rotational ball seat stub assembly Fullbore clearance after ball seat shears Fullbore geometry assembly design that

    ensures that ball seat is completely tripped and retained in fullbore open position

    Hydraulically activated shear mechanism Variable shear pressure settings

    RCB retrievable cementing bushing Full-circle locking lugs in bushing for optimum pressure resistance Small piston area that reduces force on workstring during

    circulating and cementing process Capability of retrieving bushing with setting tool,

    leaving full opening to the liner

    CRT collet running tool Ability to carry heavy liner loads Clutch that transmits high torque to the liner Backup mechanical release

    Rotating dog assembly Rotation of workstring

    for efcient load transfer Premium tool joint connections

    for high-torque applications High-performance bearing High tensile rating to match

    system tensile capacity

    Junk bonnet Blockage of debris from tieback receptacle Positive latch system that prevents premature release Built-in bypass for balanced pressure across tieback receptacle Secondary shear release capability

    PDPC pump-down plug Plug for separating cement

    and displacement uid Locking mechanism to

    protect against backpressure

    PV liner top packer ISO-14310 V3 and V0 qualied Antiswab element design Standard hold-down slips Premium connections

    Tieback receptacle Receptacle that permits

    landing, sealing, and extension of additional liner above main liner

  • SYSTEM APPLICATIONS Deepwater and deep onshore wells High-pressure, high-temperature

    environments Horizontal, extended-reach, tight, and

    deviated wellbores Wells requiring drilldown capability

    Enhances well stability and safety by allowing long, heavy liners to rotate

    during cementing preventing upward movement of the liner reducing weight on the wellhead

    SYSTEM BENEFITS Minimizes completion time by

    deploying drilldown liner system rotating the liner when running in hole circulating at high rates tripping at a high speed

    Reduces well costs by reducing the amount of casing required to

    complete the well deploying hanger in drilldown applications

    Hydraulic-set, hydraulic-release system

    HCHR high-capacity rotating liner hanger Enhanced hanging capacity Fully pocketed slips Anti-preset mechanism Optimized bypass

    Landing collar Collar that ensures rapid

    and complete drillout

    Float collar Collar used when running and

    cementing liner casing strings Collar that prevents uncured cement

    in annulus from cycling back to liner after displacement

    LWPC liner wiper plug Prole for pump-down plug

    to latch and seal Mechanism for wiping cement

    from inside liner and keeping it separated from displacing uid

    Locking mechanism to protect against backpressure

    Antirotation feature that reduces drillout time

    Reamer oat shoe Shoe that enables system

    to reach target depth

    RBS rotational ball seat stub assembly Fullbore clearance after ball seat shears Fullbore geometry assembly design that

    ensures that ball seat is completely tripped and retained in fullbore open position

    Hydraulically activated shear mechanism Variable shear pressure settings

    RCB retrievable cementing bushing Full-circle locking lugs in bushing for optimum pressure resistance Small piston area that reduces force on workstring during

    circulating and cementing process Capability of retrieving bushing with setting tool,

    leaving full opening to the liner

    CRT collet running tool Ability to carry heavy liner loads Clutch that transmits high torque to the liner Backup mechanical release

    Rotating dog assembly Rotation of workstring

    for efcient load transfer Premium tool joint connections

    for high-torque applications High-performance bearing High tensile rating to match

    system tensile capacity

    Junk bonnet Blockage of debris from tieback receptacle Positive latch system that prevents premature release Built-in bypass for balanced pressure across tieback receptacle Secondary shear release capability

    PDPC pump-down plug Plug for separating cement

    and displacement uid Locking mechanism to

    protect against backpressure

    PV liner top packer ISO-14310 V3 and V0 qualied Antiswab element design Standard hold-down slips Premium connections

    Tieback receptacle Receptacle that permits

    landing, sealing, and extension of additional liner above main liner

  • The high-capacity rotating liner hanger (HCHR) is designed for deep, challenging wells and HPHT environments. Its slip-cone design distributes axial and radial loading through the hanger and delivers increased hanging capacity over cone-type hangers.

    The pocketed slips facilitate drilldown operations. A high- performance bearing allows the long, heavy liners to rotate to improve cement integrity.

    FEATURES

    Proprietary slip-cone design that delivers lower and more uniform stresses in casing and mandrel

    Hydraulic setting mechanism Slip-cone design that eliminates

    cone collapse Slip design and hardness com-

    patibility with high-grade casing Anti-preset mechanism that aids

    in completion of challenging wells High-performance bearing that

    allows rotation of heavy liners during cementing operations

    Standard premium connections

    The PV weight-set liner top packer is ISO 14310 V3 and V0 qualified and rated to a differ-ential pressure of 10,000 psi [68.94 MPa] in most sizes.

    During running and cementing operations, a cementing packoff maintains a seal between the work string and the liner.

    The packer includes an integral retrievable cementing bushing profile, which is designed to elim inate the need for a separate adapter in the liner hanger assembly.

    FEATURES

    Antiswab element design Compatibility with mechanical-

    or hydraulic-release setting tools High torque capacity to rotate

    long liners Integral mandrel and setting

    adapter design Tested to 10,000 psi [68.94 MPa]

    and 400 degF [204.4 degC]

    High-Capacity Rotating Hanger PV Liner Top Packer Collet Running Tool Right-Hand-Release Running Tool

    The collet running tool (CRT) is a hydraulic-release running tool that requires no rotation to be released from the liner, thereby making it suitable for applications with high-inclination wells. The clutch and premium tool joint connections permit high-torque rotating and drilldown throughout the liner system.

    In cases in which a rotational liner hanger is deployed, this tool enables the liner to be rotated after the liner hanger is set. A backup mechanical-release mechanism ensures the tools release from the liner.

    FEATURES

    Special clutch design that transmits high torque to liner

    Variable shear-pressure settings

    Optional standing valve profile in bottom sub for contingency release

    The right-hand-release running tool (RRT) is a mechanical- or hydromechanical-release tool designed for systems that require high torque to enable the liner to be drilled during the operation.

    In cases in which a rotational liner hanger is deployed, this running tool enables the liner to be rotated after the liner hanger is set. It can be configured into a hydraulic- or mechanical-release tool. The tensile and torque ratings make it suitable for challenging liner hanger applications.

    FEATURES

    Conversion kit option for mechanical or hydraulic release

    Hydraulic lock feature that reduces risk of premature liner release

    Right-hand running-threadtype release

    Standing-valve profile to facilitate release if ball seats are washed out

  • Three-Phase Operations Support Process

    Design Collect and validate well parameters Select optimum liner hanger equipment Simulate torque and drag, surge and swab

    Execute Register hook load versus string depth Simulate axial force buckling effect Monitor torque limits Record changes in circulating pressures,

    string weight, pressure and temperature, reverse circulation volume, and flow rate

    Evaluate Review operations and provide postjob

    analysis Evaluate performance of the equipment Recommend liner hanger system for

    optimizing operations Store feedback in a secure database

    Operations SupportMatching the best-performing liner hanger system with a particular wells parameters requires a deep understanding of the well- bore environment and its potential challenges. A dedicated team of Schlumberger engineers works with you to understand these chal-lenges and recommend the appropriate liner hanger system for the operation. Their engineering knowledge and expertise, our innovative tool designs, and our simulation software help streamline liner hanger de-ployment, optimize the operation, minimize risks, and reduce costs.

    This selection-feedback cycle is based on a three-phase process of design, execution, and evaluation.

    Design. Schlumberger completion engineers help you select the optimum liner hanger equipment based on your specific well requirements and parameters, including depth, liner length, wellbore deviation, and

    pressures and temperatures. They use simulation software to create torque and drag models and surge and swab models to ensure that buckling and failure of tools are avoided and that operations can be com-pleted correctly the first timeas planned and on budget.

    Execution. Sophisticated software is put in place at the rig site to record key well parameters. Engineers monitor the liner hanger operation, record key parameters, and provide expertise onsite for optimal running speeds.

    Evaluation. Engineers view the actual well parameter data and run additional simulations to review the details of the operation. The results enable them to provide a postjob analy-sis and evaluate the performance of the liner hanger system. All the information is stored in a secure database for future reference.

    One trusted source for your completions

    Schlumberger expanded

    its Completions product

    portfolio in 2010 to

    include the full line of

    Smith International liner

    hangers and accessories.

    These systems complement

    existing Schlumberger

    technologies and allow

    you to complete your

    wells using equipment

    and services from one

    trusted source.

    Expert, personalized support

  • www.slb.com/linerhangers

    *Mark of SchlumbergerConfidence in Completions is a mark of Schlumberger.Copyright 2011 Schlumberger. All rights reserved. 10-CO-0160

    COLOSSUS

    The COLOSSUS premium rotating

    liner hanger system, designed

    for deepwater and deep onshore

    wells and high-pressure, high-

    temperature environments,

    helps protect the integrity of your

    completion.

    Confidence in Completions