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Projects

Running and setting a non-cemented liner with a ball-drop multistage fracturing system

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Running and setting a non-cemented liner in a geothermal well with 300 °C reservoir temperature

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Running and setting a cemented liner in a production well

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Wellhead equipment replacement using the RIBP Retrievable Inflatable Bridge Plug

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01

Deployment of a Non-Cemented Liner with Ball-Actuated Multistage Fracturing System

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01

Deployment of a Non-Cemented Liner with Ball-Actuated Multistage Fracturing System

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geography
Zapadnaya Prorva Field, Kazakhstan
objective

Company 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. The objective was to run a 1,425 m long 114 mm liner with ball-activated frac sleeves to a depth of 4,118 m and set a liner hanger in a 178 mm production casing

solution

Our company supplied the SAPSAN non-cemented liner hanger system, engineered for high-pressure applications up to 69 MPa

Work process

The SAPSAN liner hanger was deployed on drill pipe and set inside the 178 mm production casing at a depth of 2,692 m in a single trip, without requiring additional equipment

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The liner shoe reached the designed depth of 4,118 m as planned

The hanger was hydraulically set using surface equipment, creating a secure pressure barrier rated to 69 MPa and 149 °C

Subsequent multistage fracturing operations were executed as planned, with sleeve opening pressures and ball dissolution times matching design specifications

02

Deployment of a Cemented Liner in a Production Well

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02

Deployment of a Cemented Liner in a Production Well

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geography
Chepakovskoe Field, Stavropol Krai, Russia
objective

Required the deployment, installation, and cementing of a liner in a deviated production well in the Chepakovskoe field, with a formation temperature of 146 °C. The goal was to run a 286 m long 114 mm liner to a depth of 2,990 m and set a liner hanger with packer in the 178 mm production casing, while maintaining formation integrity and minimizing non-productive time.

solution

Our company supplied the Osprey cemented liner hanger system, equipped with hydrogenated nitrile (HNBR) sealing and packing elements rated for temperatures up to 149 °C

Work process

The Osprey liner hanger was run into the well on a drill pipe string and set inside the 178 mm production casing at a depth of 2,704 m in a single trip

The anchor section of the Osprey liner hanger was hydraulically set using surface pumping equipment. Following verification of anchoring, the liner was cemented while being rotated continuously to prevent channeling and enhance cement bond quality

The running tool was then released hydraulically; the mechanical backup release was not required. The packer section of the Osprey hanger was mechanically set using applied axial load. This created a secure pressure barrier rated for 69 MPa and 149 °C, ensuring safe future production from the well

Subsequent operations by the client were executed according to plan

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03

Wellhead Replacement Using RIBP Retrievable Inflatable Bridge Plug in Achimgas Urengoi Oilfield

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03

Wellhead Replacement Using RIBP Retrievable Inflatable Bridge Plug in Achimgas Urengoi Oilfield

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geography
Urengoi Oilfield, Yamal-Nenets Autonomous District, Russia
objective

Company needed to replace a malfunctioning wellhead on a producing well in the Urengoi field, which had a bottomhole pressure of 450 bar and a temperature of 98 °C. The main objective was to safely isolate the high-pressure, high-temperature (HPHT) reservoir.

solution

Our team provided a Retrievable Inflatable Bridge Plug (RIBP) equipped with SYMOIL’s proprietary valving system and a high-performance inflatable sealing element. It was deployed via coiled tubing to ensure accurate placement within the wellbore, even in the challenging environment of the Urengoi formation

Work process

The RIBP was successfully run in hole and set at 3,680 m in the 114.3 mm liner, above the perforations, in a single coiled tubing run, eliminating the need for additional intervention equipment

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Inflation was performed from the surface, establishing a robust pressure barrier capable of withstanding 450 bar and 98 °C, enabling the safe removal of the damaged wellhead

The SYMOIL RIBP™ sealing element, engineered specifically for HPHT operations, maintained effective isolation even against the irregular casing surfaces typical of Achimgas wells

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Following the wellhead replacement, the plug was safely retrieved via coiled tubing

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