Permanent Production Packers

Our Permanent Production Packers are premium downhole completion tools engineered and manufactured in strict compliance with API Spec 11D1 global industry standards, purpose-built for long-term zonal isolation, casing protection, and production optimization in oil and gas wells.

This tool forms a permanent, leak-proof seal between the production tubing and casing wall via reliable downhole setting, effectively isolating multiple production zones, blocking fluid channeling, preventing water/gas coning, and significantly enhancing oil & gas recovery efficiency (EOR) while extending the service life of wellbore and casing. With a wide adaptation range for casing sizes and downhole conditions, our packers deliver exceptional performance in high-temperature, high-pressure (HPHT), and corrosive environments, and are widely used in conventional oil & gas wells, shale gas wells, coalbed methane wells, water injection wells, and acid fracturing completion operations.

1.Industry-Leading Sealing Reliability : Compliant with API 11D1 V0 gas tightness standard, the packer adopts a multi-redundant sealing system combining high-temperature high-pressure elastic seals and metal-to-metal sealing structure, providing dual leak-proof guarantee. It maintains zero leakage even under long-term production and fluctuating downhole conditions, achieving lifelong effective zonal isolation.

2.Ultra-Wide Temperature & Pressure Resistance : Standard products support a temperature range of -20℃ ~ 204℃ (400℉), customizable up to 350℃ (662℉); the maximum pressure rating reaches 140MPa (20000psi), perfectly matching the production requirements of deep wells, ultra-deep wells, and HPHT oil & gas wells.

3.Superior Corrosion & Fatigue Resistance : Core components (slips, body, seals) are made of high-grade alloy steel and corrosion-resistant alloys (13Cr, Super 13Cr, Hastelloy, Inconel, etc.), withstanding corrosive media including H2S, CO2, and high-salinity brine. Sour service models fully comply with NACE MR0175/ISO 15156 standards, suitable for high-sulfur and high-CO2 acidic oil & gas fields.

4.High Compatibility & Flexible Setting Methods : Adaptable to 4-1/2" to 20" full series of common casing sizes, supporting hydraulic, mechanical, wireline, and tubing conveyed setting methods. It is compatible with conventional completion strings, intelligent completion systems, acid fracturing strings, and water injection strings, meeting diverse completion process requirements.

5.High-Strength Bi-Directional Anchoring Structure : The split-type bi-directional slip design delivers ultra-strong dual-direction pressure bearing capacity, effectively resisting upward and downward impact forces, preventing packer displacement and loosening during production. It maintains stable setting even under frequent well start-stop and pressure fluctuation conditions.

6.Low Running Resistance & Optimized Full Bore Design : The streamlined step-free structure greatly reduces the risk of sticking during running in the hole, suitable for complex well trajectories such as highly deviated wells, horizontal wells, and multilateral wells. The optimized full bore design does not affect the passage of subsequent downhole tools and logging instruments, meeting the needs of later workover and stimulation operations.

- Pre-Running Inspection : Check the packer appearance, threads and seals for integrity, verify that the product specification, casing size and thread type are consistent with the design, and perform drift test to ensure the bore meets the requirements.

- String Connection : Make up the thread in accordance with API standards, apply qualified thread compound, strictly control the make-up torque to ensure reliable connection.

- Running Operation : Lower the string smoothly, control the running speed, avoid sudden lifting and lowering to prevent premature setting of the packer. Strictly control the running speed when passing through highly deviated and horizontal sections to reduce the risk of sticking.

- Setting Operation : Execute the setting procedure in strict accordance with the operation manual according to the selected setting method. For hydraulic setting, pressurize step by step to the rated setting pressure, stabilize the pressure for sufficient time, and confirm the completion of setting. For mechanical/wireline setting, operate in accordance with the corresponding process requirements.

- Setting Verification : After setting, perform forward and reverse pressure test to verify that the sealing performance and anchoring performance of the packer meet the design requirements. After passing the verification, it can be put into production.

- Full series of products are designed, manufactured and inspected in strict accordance with API Spec 11D1 standard, each set of products is accompanied by a complete quality traceability document and material test report (MTR).
- The core production process has passed ISO 9001 quality management system certification. All products have undergone strict hydrostatic test, air tightness test, dimensional inspection and material testing before delivery to ensure 100% factory qualification rate.
- Sour service products strictly comply with NACE MR0175/ISO 15156 standard, and can provide third-party material testing and SSC/HIC test reports.
- We can provide third-party product inspection and certification services such as DNV and BV to meet the access requirements of global oilfields.
- Warranty: We provide a 12-month product warranty period. During the warranty period, if the product has manufacturing quality defects, we provide free replacement or maintenance services; we also provide lifetime technical support and after-sales service.

- Long-term zonal isolation for conventional oil & gas wells, deep wells, and ultra-deep wells

- Completion and production of unconventional resources (shale gas, coalbed methane, tight oil & gas)

- Sour oil & gas wells with high H2S/CO2 content and high-salinity corrosive environments

- HPHT well production completion operations

- Separate layer oil production, water injection, acidizing and fracturing stimulation operations

- Casing protection, repair and production isolation for casing deformed and damaged wells

- Gas lift completion and intelligent completion system matching operations

- Completion production of complex structure wells (horizontal wells, highly deviated wells, multilateral wells)

Q: What is a Permanent Production Packer, and how does it differ from a retrievable packer?

A:A Permanent Production Packer is a downhole completion tool designed for long-term, permanent zonal isolation in oil and gas production wells. It is set and locked downhole to form a reliable seal between the tubing and casing, with no built-in retrieval mechanism.

The core difference from a retrievable packer is that permanent packers are engineered for lifelong well production, offering higher pressure/temperature resistance, better long-term sealing reliability, and superior corrosion resistance. Retrievable packers are designed for temporary use and can be retrieved without milling. Permanent packers are ideal for long-term production, HPHT wells, and corrosive environments, while retrievable packers are better for short-term well intervention or temporary zonal isolation.

Q: What standards do your Permanent Production Packers comply with?

A:All our Permanent Production Packers are strictly designed and manufactured in accordance with API Spec 11D1 (the global industry standard for packers and bridge plugs). For sour service applications, our products fully comply with NACE MR0175/ISO 15156 standards for sulfide stress cracking (SSC) and hydrogen-induced cracking (HIC) resistance. We also hold ISO 9001 quality management system certification, and can provide third-party inspection and certification services (DNV, BV, etc.) to meet the entry requirements of oilfields worldwide.

Q: Can you customize Permanent Production Packers for our specific well conditions?

A:Yes, we offer full customization services to meet your unique well requirements. Our engineering team can tailor the packer's size, pressure/temperature rating, material grade, setting method, connection thread, and seal configuration based on your well's casing size, well depth, downhole temperature/pressure, fluid composition (H2S/CO2 content), and completion process. We regularly develop custom solutions for HPHT wells, sour gas wells, horizontal wells, and other complex well conditions.

Q:  What setting methods are available for your Permanent Production Packers?

A:We offer multiple setting methods to suit different completion operations:

1.Hydraulic Setting: The most common method, activated by applying hydraulic pressure to the tubing, ideal for most vertical and deviated wells.

2.Mechanical Setting: Activated by tubing rotation and set-down weight, suitable for wells where hydraulic pressure cannot be applied.

3.Wireline Setting: Set via electric wireline with a setting tool, perfect for slim hole wells or operations where tubing conveyance is not feasible.

4.Tubing Conveyed Setting: Compatible with standard completion tubing strings, suitable for most conventional well completions.

Our technical team can recommend the optimal setting method based on your well completion design.

Q:  What is the maximum temperature and pressure rating of your Permanent Production Packers?

A:Our standard Permanent Production Packers have a temperature rating of up to 204°C (400°F) and a pressure rating of up to 105MPa (15,000psi). For extreme downhole conditions, we can customize high-performance models with a maximum temperature rating of up to 350°C (662°F) and a maximum pressure rating of up to 140MPa (20,000psi), suitable for ultra-deep, HPHT oil and gas wells.

Q:  What material options are available for the Permanent Production Packers, especially for sour service wells?

A:We offer a wide range of material options to suit different downhole environments:

1.Standard Service: P110, L80 high-grade alloy steel for conventional oil and gas wells with no corrosive elements.

2.Moderate Corrosion: 13Cr, Super 13Cr stainless steel for wells with low to moderate CO2 content.

Sour Service (H2S/CO2): Duplex stainless steel, Hastelloy, Inconel, and other nickel-based corrosion-resistant alloys, fully compliant with NACE MR0175 standards, suitable for high H2S/CO2 sour gas wells and high-salinity brine environments.

Our technical team can help you select the optimal material based on your well's fluid analysis report.

Q:  How to retrieve a Permanent Production Packer if well intervention is required?

A:As the name suggests, permanent production packers are designed for long-term permanent installation, with no built-in retrieval mechanism. If well intervention or removal is required, the standard industry method is to mill out the packer using a milling tool and downhole motor. Our packers are designed with a mill-friendly structure, using easily millable materials for non-critical components, to reduce milling time and improve intervention efficiency. In some cases, we can also design packers with optional retrievable features for specific applications.

Q:  What is the lead time for your Permanent Production Packers?

A:For standard size and specification Permanent Production Packers (common casing sizes, standard pressure/temperature ratings, P110 material), we maintain a certain inventory, with a lead time of 3-7 working days. For customized products, the lead time is typically 15-30 working days, depending on the complexity of the customization, material availability, and order quantity. We will confirm the exact delivery schedule with you before order confirmation, and we can expedite production for urgent oilfield operation requirements.

Q:  What testing and quality assurance do you provide for each Permanent Production Packer?

A:Every Permanent Production Packer undergoes rigorous testing and inspection before leaving the factory, including:

1.Raw material inspection and chemical composition analysis, with full material traceability reports.

2.Precision dimensional inspection of all machined components, in compliance with API specifications.

3.Hydrostatic pressure test and air tightness test of the whole packer, to verify sealing performance.

4.Tensile and yield strength testing of critical components.

5.Non-destructive testing (NDT) including magnetic particle inspection (MPI) and ultrasonic testing (UT) to detect any defects.

Each product is shipped with a complete quality dossier, including material test reports (MTR), inspection reports, operation manual, and API compliance certificate.

Q:  Do you provide technical support for the installation and operation of the Permanent Production Packers?

A:Yes, we provide comprehensive technical support throughout the entire lifecycle of the product. Our team of experienced petroleum engineers can provide:

1.Pre-sales technical consultation and optimal product selection based on your well parameters.

5.Detailed operation and installation manuals, as well as video guidance for setting procedures.

3.On-site technical support and operation guidance from our field engineers (subject to project requirements).

4.After-sales technical support, including troubleshooting, well intervention guidance, and lifetime product consultation.

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