API Downhole Expanding Rubber Packers for High-Sealing Performance Applications

• Customization: Available
• After-sales Service: yes
• Warranty: 1 year
• Model NO.: Swell packer
• Manufacturing Process: CNC Milling
• Surface Treatment: Polishing
• Operation Pressure: Atmospheric Pressure
• Material: Rubber
• Application: Oil Water Well Drilling
• Sealing capability: 10-50
• Time for swell, days: 7-15
• Working environment: Hydrocarbon, such as diesel and light crude oil
• Rubber length: 1-6
• Transport Package: Bundle Packaging
• Specification: customizable
• Trademark: STARSE
• Origin: Shanghai
• HS Code: 8431
• Production Capacity: 5000 Pieces/Year
• Package Size: 1150.00cm * 77.00cm * 66.20cm
• Package Gross Weight: 5700.000kg

Product Description

 

Product Description

 

Structure and Working Principle

Structure: At its core, the packer is crafted from a durable rubber element made from innovative self-expanding elastomeric materials, bolstered by a robust framework and high-integrity connection components. The rubber element's intricate molecular design is key to its exceptional swelling capabilities. The supporting structure, often of high-strength alloys or composite materials, provides vital mechanical reinforcement, ensuring the packer's durability during challenging downhole situations. The connection parts, with precision-machined threads or advanced coupling mechanisms, enable seamless integration with the downhole tubular string.

 

 

Working Principle: Self-expanding rubber packers leverage the osmotic swelling phenomenon of the rubber matrix. Once positioned within the wellbore and exposed to specific fluids like aqueous brines or hydrocarbon-rich oils, the rubber element quickly absorbs fluids. This occurs via the diffusion of fluid molecules through the semi-permeable rubber membrane, resulting in volumetric expansion. The expansion is meticulously calibrated to create a snug and hermetic seal against the wellbore wall or casing, effectively preventing cross-flow of formation fluids between stratigraphic layers.

 

Properties

• Physical Properties
  • Expandability: Features an extraordinary capacity to expand to a significant multiple of its original size upon encountering a conducive medium. This volumetric expansion is noted for its anisotropic behavior, which facilitates optimal radial expansion while maintaining structural integrity in other directions.
  • Elasticity and Flexibility: Exhibits superb viscoelastic properties, enabling it to conform to the complex shapes and irregularities of the wellbore or casing. It can endure substantial elastic deformation under mechanical stress and revert to its original shape when the stress is removed, ensuring long-term sealing reliability.
  • Density: Typically engineered with a carefully optimized density profile to facilitate its journey to the target downhole location, whether through gravity or mechanical assistance. The density is balanced to ensure efficient conveyance without placing undue stress on downhole equipment during deployment.
• Chemical Properties
  • Corrosion Resistance: Displays outstanding resistance to the corrosive environments found in wellbores, including harsh brines, acidic gases like hydrogen sulfide and carbon dioxide, and chemical additives used in drilling and production. The rubber is formulated with advanced polymer chemistry and corrosion inhibitors to boost its chemical resilience.
  • Hydrophilicity or Oleophilicity: Tailored to meet specific operational needs and wellbore fluid composition, the rubber material can exhibit either marked hydrophilic or oleophilic traits. In water-based drilling fluids, hydrophilic functionalities promote rapid water absorption and expansion. Conversely, in oil-based fluids or oil-rich formations, oleophilic polymers are used for effective swelling in hydrocarbon-rich environments.
• Mechanical Properties
  • Compressive Strength: Designed to endure the extreme hydrostatic and lithostatic pressures encountered in deep and ultra-deep wells. It features a high-modulus rubber matrix fortified with internal structural components, such as fiber-reinforced composites or metal inserts, to enhance its compressive load-bearing capacity.
  • Shear Strength: The product exhibits formidable shear resistance, an essential trait for withstanding the shear forces that arise from wellbore deformation, casing movement, or differential settlement. The innovative rubber-to-support structure interface is fortified with advanced adhesion promoters and mechanical interlocks, ensuring steadfast adhesion. This design ensures the seal remains intact and uncompromised under various shear loading conditions, preventing delamination and preserving seal integrity.
• Sealing Properties
  • Sealing Performance: At the heart of self-expanding rubber packers lies their impeccable sealing performance. Through precise rubber element expansion, these packers achieve an exceptional, leak-proof seal against the wellbore wall or casing. This seal efficiently isolates distinct fluid-bearing zones. The mechanism relies on a high-contact-pressure interface, adeptly minimizing any potential fluid leakage pathways.
  • Long-term Sealing Performance: Throughout the entire lifecycle of an oil and gas well, maintaining a dependable and consistent sealing performance is paramount. This requirement is met by using top-tier rubber materials that exhibit outstanding resistance to thermal aging, chemical degradation, and mechanical fatigue. Cutting-edge curing processes and specialized antioxidant formulations bolster the long-term stability and durability of the rubber seal, ensuring continued excellence.

Applications

• Oil and Gas Well Completion: These packers are invaluable for zonal isolation in intricate horizontal wells and extended-reach wells. They facilitate selective production from numerous pay zones, enhancing the hydrocarbon recovery factor and reducing the risk of cross-flow between adjacent formations. Their application is crucial for optimizing well efficiency and production outcomes.
• Water Shut-off Operations: These packers offer a vital solution for sealing off water-producing zones in oil and gas wells. By effectively curtailing water inflow into the production wellbore, they significantly boost oil production efficiency and extend the well's economic viability. They are exceptionally suitable for both early and late-stage water shut-off strategies, playing a key role in maximizing resource utilization.
• Cementing Assistance: In the cementing process, these packers are pivotal in tackling annular channeling issues that occur when the cement sheath does not achieve optimal bonding with the casing. By augmenting sealing effectiveness, they enhance the overall quality of cementing operations and offer an additional barrier against fluid flow within the annular space, ensuring superior cementing outcomes.
• Well Testing and Monitoring: During well testing procedures, these packers are instrumental in isolating specific intervals within the wellbore. This isolation allows for precise measurement of formation pressure, fluid composition, and other critical reservoir parameters. Consequently, they aid in developing a comprehensive understanding of subsurface formation characteristics, thereby enabling the formulation of optimized production strategies.

 

 

 

 

 

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FAQ

Q1. How can I get samples of any product to confirm the quality?
A:1. Please provide us with your exact quantity. We can provide you with samples according to your specifications.
2. We can provide you with counter samples according to the samples you sent.

Q2. How can I get the price of the product?
A:1. Please send us your exact quantity. We can send you samples and pricing details back.
2. If you don't know any specifications. Please send us pictures of your products. We will give you an estimated price according to your pictures based on your needs. But the exact price must be given after we check your original samples.

Q3. I don't know the material or any other material information, how can I order from you.
A: It's the best way if you can send us samples so that we can provide you counter samples to check the quality. We will also quote you a price to verify the cost. After confirming all of these, you can contact our sales to place an order.

Q4. I am a small wholesaler, do you accept small orders?
A: If you are a small wholesaler, no problem, we are willing to grow with you.

Q5. Can you provide OEM or ODM service?
A: Yes. We can accept OEM services. Also, welcome to choose our ODM. Welcome to your inquiry!