Sapsan
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Non Cemented Liner Hanger
Non-cemented hydraulic liner hanger designed for reliability and performance in demanding downhole environments
Non-cemented hydraulic liner hanger designed for reliability and performance in demanding downhole environments
It is deployed using the proprietary SYMOIL Power Running Tool Assembly, ensuring seamless operation and superior hanging capability.
The SAPSAN system features a unique barrel-slip design that delivers bi-directional pressure and load support, while its one-piece inner mandrel provides upper and inner bore sealing — eliminating the need for an internal setting chamber. This results in a simplified design with enhanced burst and collapse ratings.
Required a solution for deploying and installing a liner in a horizontal well at the Zapadnaya Prorva field, as part of a project aimed at increasing production through the implementation of a multistage hydraulic fracturing (MSHF) system
Our company supplied the Sapsan non-cemented liner hanger system, engineered for high-pressure applications up to 69 MPa
The Sapsan liner hanger was deployed on drill pipe and set inside the 178 mm production casing
The hanger was hydraulically set using surface equipment, creating a secure pressure barrier rated to 69 MPa and 149 °C
A polished landing funnel on the upper end of the Sapsan hanger, combined with a sealing stinger, provided a secure tieback between the fracturing string and the 114 mm liner
Subsequent multistage fracturing operations were executed as planned
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OSPREY is a hydraulic-set, hydraulic-release rotational liner hanger designed to suspend liners securely within intermediate or production casing strings
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The Repair Packer is designed for remedial operations where leakage or a loss of integrity has occurred at the liner-top packer of systems such as SAPSAN or OSPREY
Design and manufacture of advanced service solutions for the oil and gas industry
