The Y257R-106-70-L2 Dissolvable Bridge Plug is adept at temporarily sealing in zones containing oil, gas, water, and other potential leaks. It allows for high-pressure fracturing operations on the layers above the placement of the plug. This tool is predominantly used to modify shale gas formations.
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Specifications/Parameters
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5 1/2″
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1. Material Composition: Constructed from a magnesium-aluminum alloy engineered for rapid dissolution, ensuring smooth wellbore accessibility.
2. Granular Slip Teeth Design: Ingeniously granulated design upholds foundational integrity while ensuring uninterrupted subsequent tasks.
3. Physical Dimensions: Featuring an external diameter of 106mm, aligns with 5.5-inch casings. The spacious 50mm inner diameter and a 268mm streamlined length enhance dissolution and facilitate effective flowback.
4. Pressure Resilience: Boasts an impressive resilience against pressures, enduring up to 70MPa, underscoring its high-pressure capabilities.
5. Adaptability to Well Conditions: It is tailored to operate optimally within a 50-80°C bracket, making it ideally suited for tight gas reservoir conditions.
6. Operational Longevity: Engineered to sustain a robust seal for an extensive 24 hours, catering to prolonged operational timelines.
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Applicable Casing Inner Diameter
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114.3mm
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Bridge Plug Max. Outer Diameter
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103mm
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Bridge Plug Min. Inner Diameter
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43mm
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Bridge Plug Length
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374±3mm
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Dissolvable Ball Diameter
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65mm
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Rated Differential Working Pressure
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70MPa
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Operational Temperature Range
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30~150℃
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Associated Setting Tool
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Baker20#
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Push Sleeve Outer Diameter
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102mm
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Designated Release Force
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14-16t
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Effective Seal Duration
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24h
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Time for Anchor Disengagement
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36h
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Rate of Dissolution
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95%
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Drillability
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Yes, Can Be Drilled
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Bridge Plug Overview:
① The bridge plug features a unidirectional clamping anchor design and employs a metallic ring seal mechanism.
② Our bridge plug is innovatively designed without adhesive tubes, effectively mitigating the risk of drill jamming.
③ The plug is engineered for rapid dissolution, eliminating the need for any drilling or grinding operations.
The Y257R-106-70 Dissolvable Bridge Plug is deployed into the wellbore in conjunction with perforation devices and a seating tool facilitated by a cable. Once the assembly reaches its predetermined setting location through pumping, an ignition sequence is initiated on the seating tool using ground-based control instruments. Upon ignition, the propellant combusts, generating a force that propels the seating cylinder. This action drives the cone downward, prompting the metal seal ring to expand and achieve a robust seal. Concurrently, the clamps expand, anchoring onto the casing. Once the plug is securely set, the force exerted by the seating tool surpasses the shear threshold of the retaining pin, causing it to shear. This facilitates the disengagement of the bridge plug from the seating tool, achieving its intended release.
Field Application Overview
The Y257R-106-70 Dissolvable Bridge Plug is predominantly designed for applications in tight gas reservoirs. With over 200 deployments to date, it boasts impressive operational stability. Its distinct ball seating pressure ensures effective sealing, and its exemplary flow channel performance stands out. On average, drilling through each plug segment is accomplished in a swift 4-minute timeframe.
Case Study #1: In the QiuLin 220-8-H2 well, within the 15th section, we employed our 106-C Dissolvable Bridge Plug. Operations began with the ball drop at 11:30, followed by the commencement of ball dispatch at 11:50. By 12:00, the ball reached its seating position. The maximum displacement rate stood at 3 cubic meters per minute, which was consistent even at ball seating. The wellbore had a total volume of 31 cubic meters, and the entirety of this volume, 31.0m^3, was occupied by the fluid. The pressure saw an escalation from 31.5Mpa to 51Mpa. Throughout the operation, fresh water was the primary fluid used for pumping. The bridge plug's total duration within the well was 3 hours.
Case Study #2: For the 21st section of the Golden Shallow 501-8-H2 well, the Wewodon 106R Full-Metal Dissolvable Bridge Plug was utilized. The operations started at 15:00, with the tool string entering the well, targeting a seating depth of 2384m. At 15:25, pumping operations began at a depth of 2000m. Speeds peaked at 5000m/h in the vertical stretch and averaged 3000m/h in the horizontal segments. The top pumping displacement was measured at 2.4m^3/min. By 15:40, the desired pumping depth was attained. An ignition sequence was executed at 15:41, with observed tension dropping from 600 to 430 pounds. The smooth retrieval of the tool string for perforation, devoid of any hang-ups, confirmed the appropriate seating of the bridge plug. Operations continued with the ball drop at 16:20, leading up to the ball seating completion by 16:52. Both the initial and ball seating displacement rates held steady at 3m^3/min. The total wellbore and fluid volumes were 26.3m^3 and 26m^3, respectively. The pressure metrics escalated from 30Mpa, reaching 50Mpa, with the bridge plug's operational duration inside the well being 2.5 hours.
