Gas Seal Packer

Our Gas Seal Packer is run to the target depth of the wellbore via the tubing string. For the standard hydraulic-set type: hydraulic pressure is applied through the tubing to activate the setting mechanism, which pushes the slips to firmly anchor the packer on the inner wall of the casing, and simultaneously compresses the high-performance gas-tight sealing elements to achieve 360° full circumferential sealing between the tubing and casing. For mechanical-set type, setting is completed via tubing rotation and setting down weight.

The unique metal-to-metal main seal combined with redundant auxiliary seals ensures zero gas leakage under long-term alternating pressure and temperature conditions. When retrieval is required, a straight pull on the tubing triggers the releasing mechanism, retracts the slips and decompresses the sealing elements, allowing the packer to be pulled out of the wellbore smoothly.

1.Industry-Leading Zero Gas Leakage Sealing Performance ：Adopting a redundant sealing system with metal-to-metal primary seal + high-performance gas-tight elastomer secondary seals, our gas seal packer passes strict API 11D1 V0 grade gas seal cyclic testing. It achieves permanent zero gas leakage under full differential pressure and alternating temperature conditions, perfectly adapting to natural gas wells, condensate gas wells and other scenarios with strict gas isolation requirements.

2.Ultra-Wide HPHT Adaptability ：Optimized structure and material matching enable a rated working temperature range from -40℃ to 204℃ (-40°F to 400°F), and a maximum rated working pressure up to 105MPa (15000PSI). It stably operates in deep wells, ultra-deep wells and other extreme downhole environments where conventional packers fail.

3.Superior Corrosion Resistance for Sour Wells ：The main body and sealing components can be upgraded to NACE MR0175/ISO 15156 compliant anti-sulfur materials, including 316L stainless steel, Hastelloy, Monel and Inconel alloys. It effectively resists erosion from H2S, CO2 and chloride ions, greatly extending the downhole service life in corrosive well conditions.

4.Bidirectional Pressure Bearing & Flexible Operation ：The integrated bidirectional slip and bidirectional sealing design allows the packer to withstand full rated differential pressure from both upper and lower directions. It supports safe setting and releasing without balance pressure, perfectly matching multiple operations such as zonal fracturing, acidizing, water shut-off, zonal production and gas lift.

5.Fast Setting & Retrieval, Lower Operation Cost ：The optimized hydraulic/mechanical setting mechanism ensures accurate and reliable setting action with low releasing resistance. The retrievable design supports multiple setting and releasing cycles, significantly reducing tripping time, workover frequency and overall operation cost for oilfield operators.

6.Full Bore Design for Uninterrupted Downhole Operations ：The large inner diameter full bore structure does not restrict the running of subsequent downhole tools. It allows smooth passage of coiled tubing, logging tools, perforating guns and other equipment, fully adapting to the whole process of well completion and stimulation operations.

- Anti-sulfur and anti-corrosion material upgrade (NACE MR0175 compliant) for sour well applications

- High temperature resistant seal element upgrade for HPHT well conditions

- Premium gas-tight premium thread connection options

- Centralizer and debris barrier accessories for deviated and horizontal wells

- Shear pin setting pressure customization to match on-site operation requirements

- Full custom design for special well conditions (ultra-deep wells, extended reach wells, etc.)

- Complete set of matched running, retrieval and setting tools supply

- Third-party inspection services (BV, SGS, DNV, etc.) upon request

All our Gas Seal Packers are manufactured in an API Q1 certified facility, with full traceability of raw materials and production processes. Every single packer undergoes strict factory inspection and performance testing before delivery, including :

- Full dimensional inspection with compliance report

- Hydrostatic pressure test and gas seal performance verification test

- Tensile strength and load bearing test

- Material composition analysis and hardness test

- Corrosion resistance test for sour service models

- Natural gas wells, condensate gas wells and coalbed methane (CBM) wells requiring premium gas-tight zonal isolation

- HPHT deep wells and ultra-deep wells

- Sour oil & gas wells with H2S, CO2 and corrosive media (NACE MR0175 compliant)

- Zonal production and zonal water injection in conventional oil & gas wells

- Hydraulic fracturing, acidizing and other well stimulation operations

- Water shut-off, gas shut-off and profile control operations

- Gas lift well completion and production

- Well abandonment and temporary well plugging operations

- Deviated wells and horizontal wells

Q: What standard do your Gas Seal Packers comply with?

A: Our Gas Seal Packers are fully designed and manufactured in accordance with API Spec 11D1 (the international standard for downhole packers) and ISO 14310. For sour gas well applications, our products also fully comply with NACE MR0175/ISO 15156 standard for sulfide stress cracking resistance.

Q: Can you customize the Gas Seal Packer for my specific well conditions?

A: Yes, we provide full end-to-end customization services. We can adjust the packer size, material grade, working pressure/temperature rating, setting mode, seal element material, and thread connection according to your wellbore parameters, casing size, formation conditions and operation requirements. Our professional engineering team will provide a tailored solution for your project free of charge.

Q: What is the core difference between a Gas Seal Packer and a conventional packer?

A: The core difference lies in the sealing performance for gaseous media. Conventional packers are mainly designed for liquid medium, and are prone to micro-leakage of gas under alternating pressure and temperature conditions. Our Gas Seal Packer adopts a redundant metal-to-metal + elastomer sealing system, which achieves API 11D1 V0 grade zero gas leakage, making it the only reliable choice for gas wells, condensate gas wells and other applications requiring strict gas isolation.

Q: What is your lead time for Gas Seal Packer orders?

A: For standard models in stock, we can arrange delivery within 3-5 working days. For customized non-standard models, the lead time is usually 15-30 working days, depending on the customization complexity and order quantity. We will confirm the exact delivery schedule in the formal quotation.

Q: Can your Gas Seal Packer be used in deviated or horizontal wells?

A: Yes, our Gas Seal Packer is suitable for vertical wells, deviated wells and horizontal wells. We can provide optional centralizers, debris barriers and anti-preset accessories to ensure smooth running, reliable setting and stable sealing performance in complex deviated and horizontal wellbores.

Q: What kind of after-sales service do you provide?

A: We provide full-cycle after-sales support, including 24/7 technical consultation, detailed operation manual and running procedure guidance, optional on-site operation guidance, and a 12-month quality warranty from the date of delivery. If there is any quality problem under normal use within the warranty period, we will provide free replacement or repair service.

Q: Do you provide matching running and retrieval tools for the Gas Seal Packer?

A: Yes, we can provide a complete set of matched running tools, retrieval tools and setting tools for all our Gas Seal Packer models. We can also provide professional operation training and guidance to ensure your on-site team can use the tools correctly and efficiently.

Q: Can your Gas Seal Packer withstand H2S and CO2 corrosive environments?

A: Yes, we have special sour service models for oil and gas wells containing H2S and CO2. These models adopt NACE MR0175 compliant corrosion-resistant materials for both the main body and sealing components, which can effectively resist the erosion of corrosive media and ensure long-term stable operation in sour well conditions.

Q: What setting modes are available for your Gas Seal Packers?

A: Our standard Gas Seal Packers adopt hydraulic setting mode, which is easy to operate and has high setting reliability. We also provide mechanical setting, hydraulic-mechanical dual setting options for different well conditions and operation habits. We can also customize the setting pressure of shear pins according to your on-site operation requirements.

Q: Can we get sample testing before bulk order?

A: Yes, we can provide sample products for performance testing and field trial according to your requirements. We also welcome third-party factory inspection and product testing before order placement.

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