External Packer with Autonomous Swelling Rubber Technology for Oil Wells

• 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

Self-expanding rubber packers stand as marvels of engineering, pivotal to the oil and gas sector for achieving unparalleled annular isolation. Delve into this comprehensive, technologically advanced introduction:

 

Structure and Working Principle

Structure: At the heart of its design lies a highly durable rubber element crafted from a state-of-the-art self-expanding elastomeric material, paired with a strong supportive framework and impeccably designed connection components. The rubber element, crucial to functionality, features sophisticated molecular configurations to maximize its expansion potential. Meanwhile, the supporting structure-comprising high-strength alloys or composites-provides robust reinforcement, ensuring the packer's resilience during demanding downhole tasks. Connection parts, precisely machined or using advanced coupling technology, seamlessly integrate the packer into the tubular string with high precision.

 

 

Working Principle: These sophisticated packers capitalize on the osmotically-driven swelling phenomenon within their rubber matrix. Upon wellbore placement and contact with select well fluids like aqueous brines or hydrocarbon oils, the rubber embarks on a rapid fluid absorption journey. This occurs as fluid molecules traverse its semi-permeable membrane, resulting in strategic volume expansion. Such precision assures a tight, impermeable seal against the wellbore wall or casing, effectively blocking any fluid migration between distinct geological layers.

 

Properties

• Physical Properties
  • Expandability: It showcases an astounding ability to expand significantly beyond its original size once exposed to a suitable medium, particularly noted for its directional expansion properties. This ensures ideal radial growth while maintaining structural integrity across other dimensions.
  • Elasticity and Flexibility: Boasting superior viscoelastic attributes, this packer smoothly accommodates the intricate shapes and uneven surfaces of a wellbore or casing. It can endure extensive elastic deformation under pressure and rebound to its original form once the pressure subsides, sustaining its seal over time.
  • Density: Possesses a meticulously calibrated density profile, facilitating its descent to the target location with gravity or mechanical assistance. The density strikes a balance, ensuring smooth deployment alongside minimal stress on the downhole apparatus during installation.
• Chemical Properties
  • Corrosion Resistance: Excels in enduring the harsh corrosive environments found in wellbores, including aggressive brines, acidic gases (like hydrogen sulfide and carbon dioxide), alongside various chemical additives used in drilling and extractions. The rubber's formulation leverages cutting-edge polymer technologies and corrosion inhibitors to bolster its chemical steadfastness.
  • Hydrophilicity or Oleophilicity: Tailored to the operational demands and fluid compositions, the rubber material can be engineered to exhibit either hydrophilic or oleophilic traits. In water-based systems, hydrophilic groups are employed to hasten water absorption and expansion. Conversely, in oil-dominant environments, oleophilic polymers are included to ensure effective swelling amidst hydrocarbons.
• Mechanical Properties
  • Compressive Strength: Designed to endure the severe hydrostatic and lithostatic pressures typical of deep-well scenarios. Its high-modulus rubber matrix, bolstered with internal reinforcements like fiber composites or metal inserts, empowers it with substantial load-bearing aptitude.
  • Shear Strength: Unveils exceptional shear resistance capabilities, a pivotal feature for enduring shear forces caused by wellbore deformation, casing movement, or differential settlement. The interface between the rubber and the support structure is meticulously crafted with specialized adhesion promoters and mechanical interlocks, effectively preventing delamination. This design ensures the seal's integrity under shear loading, delivering unmatched reliability.
• Sealing Properties
  • Sealing Performance: Defines the core functional prowess of self-expanding rubber packers. As the rubber element expands with precision, it creates a highly efficient, leak-proof seal against the wellbore wall or casing, adeptly isolating various fluid-bearing zones. The sealing mechanism is anchored on establishing a high-contact-pressure interface, which significantly curtails fluid leakage pathways, ensuring optimized performance.
  • Long-term Sealing Performance: Throughout the production lifespan of the oil and gas well, the packer must deliver unwavering and dependable sealing performance. This requirement is met through the use of high-performance rubber materials that exhibit outstanding resistance to thermal aging, chemical degradation, and mechanical fatigue. Advanced curing techniques and antioxidant formulations are utilized to bolster the rubber seal's long-term stability.

Applications

• Oil and Gas Well Completion: Are widely employed for zonal isolation in intricate horizontal wells and extended-reach wells. In these settings, they facilitate selective production from multiple pay zones, enhancing the hydrocarbon recovery factor and reducing the risk of cross-flow between adjacent formations.
• Water Shut-off Operations: Provide a vital solution for sealing water-producing intervals in oil and gas wells. By effectively stopping water influx into the production wellbore, they substantially boost oil production efficiency and extend the well's economic lifespan. They are particularly effective for both early-stage and late-stage water shut-off strategies.
• Cementing Assistance: Are crucial in the cementing process, addressing annular channeling issues that arise when the cement sheath doesn't achieve an ideal bond with the casing. They enhance sealing effectiveness and improve overall cementing quality, providing an additional barrier to fluid flow in the annular space.
• Well Testing and Monitoring: Are utilized to isolate specific intervals within the wellbore during well testing procedures. This isolation allows for precise measurement of formation pressure, fluid composition, and other reservoir-related parameters. Thus, they aid in developing a deeper understanding of subsurface formation characteristics, leading to more informed and 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!