Compression Open Hole Packer

Our Compression Open Hole Packer is a high-performance downhole tool specially designed for open hole well completion and stimulation operations in oil & gas fields. Engineered in strict compliance with API Spec 11D1 standard, this packer achieves reliable sealing between the wellbore and formation annulus through radial expansion of the rubber element driven by mechanical compressive force from the tubing string.

It is widely applicable for vertical, deviated and horizontal open hole wells, supporting operations such as staged fracturing, acidizing, water shutoff, zonal production and formation isolation. With optimized structure design, our packer delivers outstanding adaptability to irregular open hole wellbores, high pressure/temperature resistance, and stable long-term sealing performance, effectively solving the pain points of interlayer interference, low sealing reliability and high operation risk in complex open hole environments.

1. API 11D1 Standard Compliant Design : Full series products are R&D and manufactured in strict accordance with API Spec 11D1 specification for packers and bridge plugs. All key components have passed strict mechanical and sealing performance tests, fully meeting the operation specifications and access requirements of mainstream oil and gas fields worldwide.
2.High-Adaptability Open Hole Sealing Structure : Adopts multi-section high-elasticity rubber element combination design, which can effectively adapt to irregular open hole walls, compensate for sealing gaps caused by wellbore ovality and hole enlargement, and maintain stable and reliable sealing even under non-uniform wellbore conditions.
3.Bidirectional High Pressure & Temperature Resistance : Optimized metal support structure and anti-extrusion design, matched with high-strength alloy steel body, achieve a maximum bidirectional rated pressure difference of 70MPa (10000PSI). The temperature resistance grade covers -20℃~204℃ (-4°F~400°F), fully meeting the operation requirements of high temperature and high pressure deep wells and ultra-deep wells.
4.Simple & Reliable Compression Setting Mechanism : Setting is completed by tubing gravity/mechanical compressive force, no hydraulic pressure, explosion or other auxiliary power is required. The setting operation is simple with a success rate of over 99%. The built-in locking mechanism realizes permanent locking after setting, preventing rubber element rebound and ensuring stable sealing performance throughout the operation.
5.Superior Anti-Corrosion & Anti-Wear Performance : The main body is made of high-quality oilfield special alloy steel (P110, N80, L80, etc.). Key components can be optional with 316L stainless steel, Hastelloy, Monel alloy and other anti-corrosion materials, adapting to corrosive formation environments with high content of H2S, CO2 and Cl⁻, and extending the service life of the tool.
6.Full-Size Customizable Solution : Covers common open hole sizes from 4-1/2" to 17-1/2". We can fully customize the rubber element material, pressure rating, connection thread, overall length and anti-corrosion scheme according to your actual wellbore parameters, formation conditions and operation requirements, perfectly matching your personalized operation plan.
7.Easy Retrieval & Drillable Design : The retrievable type can be unlocked and retrieved with the tubing string by simple upward lifting after operation, no complex fishing operation is required. The optional drillable structure can be quickly milled and removed by downhole milling tools, greatly shortening the operation cycle and reducing workover costs for permanent completion scenarios.

- Run In Hole : Connect the Compression Open Hole Packer to the tubing/drill string, and run it into the target position of the open hole section according to the designed depth, with a controlled running speed to avoid collision and damage.
- Setting Operation : Apply downward mechanical compressive force to the tubing string on the surface, which drives the relative movement of the upper and lower joints of the packer, axially compresses the rubber element, makes it expand radially, and closely fits the open hole wall to completely seal the annulus between the wellbore and the formation.
- Locking & Holding : After setting in place, the built-in ratchet locking mechanism automatically locks the compression stroke, prevents the rubber element from rebounding, maintains a long-term stable sealing state, and no continuous tubing pressure is required.
- Operation Execution : After the sealing is confirmed, subsequent downhole operations such as staged fracturing, acidizing, water shutoff and zonal production can be carried out. The packer can withstand the rated pressure difference and temperature throughout the operation to ensure construction safety.
- Unsetting & Retrieval/Drilling : After the operation, lift the tubing string to shear the unset pin, release the locking mechanism, and the rubber element rebounds and contracts to realize unset, which can be pulled out of the wellhead together with the tubing string. The drillable type can be quickly milled and removed by downhole milling tools for permanent completion scenarios.

Our Compression Open Hole Packer implements a strict full-process quality control system from raw material procurement, production and processing to finished product testing, in line with ISO 9001 quality management system and API Spec 11D1 standard.

- Raw Material Traceability : All steel and rubber materials are from globally renowned qualified suppliers, with complete material certificates and mechanical property test reports, to prevent unqualified raw materials from entering the warehouse.

- Precision Processing Control : High-precision CNC machining centers are used to produce key components, with full-process dimensional inspection, to ensure that the machining tolerance strictly meets the design drawing requirements and the fitting accuracy of components.

- Full Performance Testing : Each batch of finished products is subject to hydrostatic sealing test, pressure bearing performance test, setting-unsetting performance test. For key models, high temperature and high pressure full working condition simulation test can be carried out according to customer requirements, to ensure that each factory product meets the rated performance indicators.

- Compliance Certification   We can provide API 11D1 compliance certificate, ISO 9001 certification, material test report, third-party inspection report (SGS/BV, etc.) to meet the access requirements of oil and gas fields around the world.

- Open hole zonal completion operations for vertical, deviated and horizontal oil & gas wells

- Staged fracturing, acidizing and matrix acidizing stimulation operations in open hole wells

- Water shutoff and profile control operations for water-producing zones in open hole oil and water wells

Isolation of abnormal pressure zones, lost circulation zones and collapsed formations to protect reservoirs and prevent wellbore accidents

- High temperature and high pressure operations in deep wells and ultra-deep wells with harsh downhole conditions

- Open hole staged fracturing completion for unconventional oil and gas development such as coalbed methane and shale gas

Q: What is the difference between a compression open hole packer and a hydraulic open hole packer?

A: The core difference lies in the setting mechanism. Our compression open hole packer is set by mechanical compressive force from the tubing string, no hydraulic pressure or auxiliary power is required, featuring simple operation, high setting reliability, and low failure risk in complex downhole environments. The hydraulic open hole packer relies on hydraulic pressure to set, which is more suitable for highly deviated wells/horizontal wells where mechanical compression force is hard to apply. We can provide both types according to your operational requirements.

Q: What API standard does your compression open hole packer comply with?

A: All our compression open hole packers are designed and manufactured in strict accordance with API Spec 11D1 (Specification for Packers and Bridge Plugs) standard, and can provide a full set of API compliance documents and test reports to meet the access requirements of major oil and gas fields worldwide.

Q: Can you customize the compression open hole packer for my specific well conditions?

A: Yes, full customization is available. We can customize the packer's outer diameter, length, connection thread, pressure rating, temperature rating, rubber element material, and anti-corrosion scheme according to your actual wellbore size, formation parameters, H2S/CO2 content, and operational requirements. Our engineering team will provide a tailored solution within 24 hours after receiving your well parameters.

Q: What rubber element material options are available for the packer?

A: We provide a variety of rubber material options to adapt to different downhole environments:

- NBR (Nitrile Butadiene Rubber): Suitable for conventional wells, temperature resistance up to 120℃ (248°F), with good oil resistance and elasticity.

- HNBR (Hydrogenated Nitrile Butadiene Rubber): Suitable for medium-high temperature wells, temperature resistance up to 150℃ (302°F), with - excellent H2S/CO2 corrosion resistance and wear resistance.

- FKM (Fluorine Rubber): Suitable for high temperature and high corrosion wells, temperature resistance up to 204℃ (400°F), with outstanding chemical stability and corrosion resistance in harsh environments.

Q: What is the maximum pressure and temperature rating of your compression open hole packer?

A: Our standard series compression open hole packers have a rated working pressure of up to 70MPa (10000PSI) bidirectional, and a rated working temperature range from -20℃ to 204℃ (-4°F to 400°F). For ultra-deep wells with extreme working conditions, we can customize higher specification products with pressure rating up to 105MPa (15000PSI) and temperature resistance up to 260℃ (500°F).

Q: How to install and set the compression open hole packer correctly?

A: The installation and setting process is simple and efficient:

- Check the packer's appearance, thread, and rubber element before running in hole to ensure no damage.

- Connect the packer to the tubing string as per the running program, apply thread sealant to the connection thread, and tighten to the specified torque.

- Run the packer to the target depth in the open hole at a controlled running speed, avoid violent collision and excessive lowering speed.

- After reaching the target depth, apply the specified compressive force to the tubing string on the surface to complete the setting, and confirm the setting is successful through the weight indicator.

- After the setting is confirmed, you can carry out subsequent downhole operations.We will provide a detailed operation manual and video guidance for each order, and our technical team can provide 24/7 online guidance for on-site operations.

Q: Can the compression open hole packer be reused after being retrieved?

A: The standard retrievable compression open hole packer can be reused after being retrieved from the well, after passing strict inspection, maintenance, and replacement of wearing parts (such as rubber elements, seals, and pins). We provide professional maintenance guidance and original spare parts to ensure the performance of the reused packer meets the standard. For drillable packers, they are one-time use products and cannot be reused.

Q: What is your delivery time for the compression open hole packer?

A: For standard models in stock, we can arrange delivery within 3-5 working days after receiving your payment. For customized models, the delivery time is 15-30 working days according to the customization complexity and order quantity. We have a large inventory of semi-finished products and raw materials to shorten the delivery cycle as much as possible for urgent orders.

Q: What after-sales service do you provide?

A: We provide full-cycle after-sales service for all our products:

- Pre-sales: Professional technical team provides free model selection, scheme design, and parameter confirmation according to your well conditions.

- In-sale: Real-time order progress tracking, full set of product documents (operation manual, test report, certification documents) are provided before delivery.

- After-sales: 24/7 online technical support, on-site operation guidance can be arranged if necessary; we provide a 12-month quality warranty period from the date of delivery, and we will unconditionally replace or repair the products with quality problems caused by production and processing.

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