Single Slip Soluble Bridge Plug | API 11D1 | 70MPa | Magnesium Alloy

1. Single-Slip Anchoring with Carbide Button Teeth for Secure Casing Engagement

The single-slip design utilizes a high-strength soluble magnesium alloy slip body with precision-embedded tungsten carbide button teeth. During setting, the slip expands radially and the carbide teeth embed firmly into the casing wall, creating a reliable anchor that resists displacement under high differential pressure up to 70MPa (10,000 psi). The unified slip mechanism ensures consistent setting performance and eliminates the complexity of dual-slip synchronization, while the soluble slip body fully degrades after operation - leaving no metallic fragments that could cause stuck pipe or damage downhole equipment.

2. 100% Dissolvable Construction with Zero Residual Debris

Every component of the soluble bridge plug - including the body, slip, seal element, and fasteners - is manufactured from dissolvable materials. The structural components use a controlled-electrolyte soluble magnesium alloy, while the sealing element employs a degradable polymer compound. After stimulation, the entire plug dissolves completely in chloride-based wellbore fluids, achieving a dissolution rate of ≥99% and restoring full bore drift diameter. No insoluble residues remain in the wellbore, eliminating the need for coiled tubing milling, wiper trips, or fishing operations.

3. Controlled Dissolution Rate with Customizable Formulations

Dissolution performance is precisely engineered through adjustable magnesium alloy electrolyte compositions. Standard dissolution time is 5–10 days under typical downhole conditions (80–120°C in 1% chloride ion solution). For specific project requirements, the dissolution rate can be customized to range from several days to several weeks by modifying the alloy formulation to match actual downhole temperature, pressure, and fluid chemistry. This ensures the plug maintains structural integrity throughout the fracturing operation and dissolves predictably afterward, aligning with your well completion schedule.

4. High Pressure and Temperature Rating for Demanding Wells

The dissolvable frac plug is rated for a maximum working differential pressure of 70MPa (10,000 psi), with customizable configurations available for high-pressure applications up to 90MPa. The operating temperature range spans 30°C to 180°C (86°F to 356°F), covering shallow low-temperature wells and deep high-temperature wells alike. Each plug undergoes rigorous pressure testing at rated temperature before shipment, ensuring reliable sealing performance under actual downhole conditions.

5. Compact Short-Body Design for Extended-Reach Wells

The optimized short-body profile reduces overall plug length and setting displacement compared to conventional bridge plugs, making it easier to transport and run into the hole through deviated and horizontal wellbores. The reduced outer diameter allows passage through casing restrictions and tight doglegs, while the simplified single-slip construction minimizes the number of moving components - reducing the risk of premature setting and improving run reliability in extended-reach laterals exceeding 3,000 meters.

6. Cost Reduction and Operational Efficiency

By eliminating post-fracturing mill-out operations, the soluble bridge plug significantly reduces coiled tubing costs, rig time, and non-productive time. Operators typically save 2–5 days of rig time per well compared to composite plug completions requiring drill-out. Additionally, the dissolvable design avoids casing damage caused by milling operations, reduces wellbore maintenance costs, and enables faster production startup - delivering a lower total cost of completion and improved overall well economics.

The Single Slip Soluble Bridge Plug operates through three distinct phases: setting, fracturing isolation, and dissolution.

Phase 1: Running and Setting

The soluble bridge plug is assembled with a standard setting adapter and connected to a Baker #10 or #20 setting tool. The assembly is lowered to the target depth via wireline, coiled tubing, or hydraulic pump-down. Once positioned at the designated setting depth, the setting tool is activated - either by electric ignition (wireline) or hydraulic pressure (pump-down) - generating a controlled axial force. This force drives the setting cone along the mandrel, expanding the single slip radially outward. The tungsten carbide button teeth on the slip embed into the casing inner wall, forming a firm mechanical anchor. Simultaneously, the dissolvable elastomer seal element is compressed between the upper and lower backup rings, expanding radially against the casing ID to create a gas-tight, pressure-rated seal. After the slip and seal are fully set, the shear pin connecting the setting tool to the plug fractures at a predetermined load, allowing the setting tool to be retrieved to surface while the plug remains securely anchored downhole.

Phase 2: Fracturing and Zonal Isolation

During hydraulic fracturing operations, the single-slip anchor maintains stable positioning of the plug under sustained high differential pressure up to 70MPa (10,000 psi). The compressed seal element prevents fracturing fluid and proppant from migrating between isolated zones, ensuring that each fracturing stage receives the designed treatment volume and pressure. The plug isolates the lower completed zone while allowing treatment fluids to be pumped through perforations above the plug into the target formation. Throughout the stimulation operation, the soluble magnesium alloy body maintains structural integrity - the dissolution rate is engineered to remain minimal during the active fracturing period, ensuring reliable isolation until all stages are completed.

Phase 3: Dissolution and Full Bore Restoration

After fracturing operations are complete and the well is put on flowback, the plug is exposed to chloride-bearing wellbore fluids at downhole temperature. The soluble magnesium alloy undergoes a controlled electrochemical reaction with the chloride ions in the fluid, gradually converting the metallic structure into soluble magnesium salts and fine particulate matter. The dissolvable polymer seal element undergoes hydrolysis, breaking down into non-toxic degradation products. Both reaction products are harmless and flow back to surface with the produced fluids. Standard dissolution is typically complete within 5–10 days, depending on downhole temperature and chloride concentration. Once fully dissolved, the wellbore returns to full drift diameter with no residual debris, enabling immediate production without any intervention, milling, or cleanout runs. For low-temperature wells below 60°C where natural dissolution is slower, an accelerated degradation fluid can be circulated to shorten the dissolution cycle as needed.

The Single Slip Soluble Bridge Plug is deployed across a wide range of oil and gas well completion and stimulation operations. Primary application scenarios include:

1. Multi-Stage Fracturing in Unconventional Oil and Gas Wells

As the core zonal isolation tool for plug-and-perf (PnP) completion operations, the dissolvable frac plug is essential for shale gas, tight oil, and low-permeability reservoir development. In horizontal wells with long laterals and 20+ fracturing stages, the plug isolates each stage sequentially, ensuring uniform stimulation across the entire lateral. The dissolvable design is particularly advantageous in extended-reach horizontal wells where coiled tubing reach is limited - eliminating the need for mill-out entirely and enabling completion of wells that would otherwise be operationally constrained.

2. Temporary Zonal Isolation in Well Completion and Workover

The soluble bridge plug serves as a temporary barrier during well completion, workover, and well testing operations. It effectively isolates different formation zones to prevent fluid cross-flow and pressure communication, providing a safe working environment for above-plug operations. After the work is complete, the plug dissolves automatically without requiring any retrieval or intervention - making it ideal for temporary isolation where removing a conventional plug would add unnecessary cost and risk.

3. High-Temperature and High-Pressure Well Operations

With a pressure rating of 70MPa (10,000 psi) standard and customizable up to 90MPa, plus a temperature range up to 180°C (356°F), the dissolvable bridge plug is suitable for deep wells, ultra-deep wells, and geothermal wells where high bottomhole temperatures and pressures challenge conventional plug designs. The high-temperature soluble magnesium alloy formulation maintains structural integrity during the fracturing operation while still achieving predictable dissolution within the designed timeframe.

4. Environmentally Sensitive and Zero-Discharge Operations

For oil and gas fields with strict environmental regulations - including offshore platforms, protected areas, and zero-discharge fields - the fully dissolvable design eliminates the need to retrieve and dispose of used plug components at surface. All degradation products are non-toxic and produced back with well fluids, reducing surface waste handling and minimizing the environmental footprint of completion operations. This makes the soluble frac plug the preferred choice for operators targeting ESG compliance and green completion standards.

5. Wells with Coiled Tubing Limitations or Access Restrictions

In offshore platforms, subsea completions, and remote onshore locations where coiled tubing units are expensive or logistically difficult to deploy, the intervention-free soluble bridge plug removes the requirement for post-fracturing mill-out entirely. The plug can be deployed via wireline or pump-down, and no subsequent intervention is needed - reducing operational complexity, equipment costs, and HSE exposure associated with coiled tubing operations on constrained well sites.

At Thankful Material, every Single Slip Soluble Bridge Plug is manufactured under a rigorous quality management system certified to ISO 9001:2015 and designed in accordance with API 11D1 specifications for downhole packers and bridge plugs. Our quality assurance process covers the entire product lifecycle from raw material inspection to final shipment testing.

Raw Material Control

All soluble magnesium alloy billets are sourced from approved suppliers and accompanied by material test reports (MTR) conforming to EN 10204 3.1. Each batch undergoes spectroscopic chemical composition analysis to verify the precise electrolyte content that controls dissolution performance. Incoming alloy hardness and microstructure are inspected to ensure consistent mechanical properties across every production lot. Dissolvable polymer seal materials are tested for hardness, tensile strength, and fluid compatibility before being released to production.

In-Process Manufacturing Control

CNC machining operations are performed on precision lathes and machining centers with documented process parameters. Critical dimensions - including outer diameter, seal groove dimensions, and slip tooth positioning - are inspected at first-article, in-process, and final inspection stages using calibrated micrometers, bore gauges, and coordinate measuring machines (CMM). Each slip assembly undergoes a tooth retention test to verify that carbide buttons are securely bonded and will not dislodge during setting or operation.

Performance Testing

Every completed soluble bridge plug undergoes the following tests before shipment:

• Pressure Seal Test: Each plug is assembled and hydrostatically tested at rated differential pressure (70MPa / 10,000 psi) for a minimum hold period, with zero visible leakage accepted as the pass criterion.

• Setting Function Test: Sample plugs from each production lot are set in test casing using a standard Baker setting tool to verify correct slip expansion, seal compression, and shear pin release.

• Dissolution Verification Test: Representative samples are immersed in controlled-temperature chloride solution to confirm that dissolution rate matches the designed specification for the ordered temperature series.

• Dimensional Inspection: 100% of critical mating dimensions are verified against engineering drawings before packaging.  

Warranty

We provide an 18-month warranty from the date of shipment against manufacturing defects in materials and workmanship. Products found to be non-conforming under proper use and storage conditions will be replaced or repaired at no cost. Our technical engineering team provides 24-hour online support for product selection, running procedures, and field troubleshooting.

Q: What is the difference between a soluble bridge plug and a dissolvable frac plug?

A: The terms are often used interchangeably in the oil and gas industry. A soluble bridge plug (also called a dissolvable frac plug) is a temporary zonal isolation tool made from dissolvable materials - typically soluble magnesium alloy for the structural body and dissolvable polymer for the seal - that degrades completely in wellbore chloride fluids after fracturing, eliminating the need for mill-out. "Bridge plug" emphasizes the zonal isolation function, while "frac plug" emphasizes its application in hydraulic fracturing operations.

Q: How long does the Single Slip Soluble Bridge Plug take to dissolve completely?

A: Under standard downhole conditions of 80–120°C in a 1% chloride ion solution, the plug dissolves completely within 5–10 days. Dissolution rate is primarily governed by downhole temperature and fluid chloride concentration - higher temperatures and higher chloride levels accelerate dissolution. The dissolution time can be customized by adjusting the magnesium alloy electrolyte formulation to match your specific wellbore conditions and required operation cycle.

Q: What is the maximum pressure and temperature rating?

A: The standard rating is 70MPa (10,000 psi) differential pressure across a temperature range of 30°C to 180°C (86°F to 356°F). Standard temperature series are available at 90°C, 120°C, 150°C, and 177°C. For high-pressure well applications, customizable configurations rated up to 90MPa are available on request.

Q: Is the single-slip design stable enough for high-pressure fracturing?

A: Yes. The single slip is manufactured from high-strength soluble magnesium alloy with precision-embedded tungsten carbide button teeth that firmly embed into the casing wall during setting. The unified anchoring mechanism has been field-proven in horizontal well multi-stage fracturing operations, maintaining stable positioning under sustained differential pressure up to the rated 70MPa. The carbide teeth provide robust anchoring without causing excessive damage to the casing inner wall.

Q: What setting tools are compatible with this plug?

A: The soluble bridge plug is fully compatible with standard Baker #10 and #20 hydraulic setting tools, which are widely used in global oil and gas operations. It can be deployed via wireline (electric setting), coiled tubing, or hydraulic pump-down methods. No specialized equipment modification or additional operator training is required - the running procedure is consistent with conventional bridge plug operations.

Q: What casing sizes are available?

A: The plug is available for casing sizes ranging from 62mm to 146mm (2.44" to 5.75"), including common sizes such as φ72, φ85, φ88, φ98, φ102, and φ108mm. It is compatible with P110, 125, and other standard casing grades. Custom sizes for non-standard casing dimensions can be manufactured to order.

Q: What is the minimum order quantity and delivery time?

A: The minimum order quantity is 1 piece for standard models - sample and trial orders are accepted. For standard sizes in stock, delivery is 7–15 working days after receiving the deposit. Customized sizes, temperature ratings, or dissolution formulations typically require 20–30 working days depending on the scope of customization. We ship from Shanghai or Ningbo port.

Q: Do you provide technical support and on-site supervision?

A: Yes. Our engineering team provides 24-hour online technical support for product selection, running procedure guidance, and field troubleshooting. For first-run deployments or large-scale projects, on-site technical supervision can be arranged on request. We also provide detailed running manuals, setting tool compatibility guides, and dissolution performance prediction tools to support your completion engineering team.

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