1. Maxim Volkov, Principal Domain Champion – TGT Diagnostics
Presenting: “Enhancing Plugging and Abandonment and Workover Efficiency: The advantages of Spectral Acoustics and High Precision Temperature Diagnostics for planning and execution P&A operations"
The diagnostics obtained through downhole evaluations play a critical role in developing a plugging and abandonment (P&A) decision plan. These diagnostic results provide essential information about the condition of downhole barriers, allowing P&A engineers to make informed decisions regarding the sealing of flow potential zones and achieving a safe and effective P&A operation.
The P&A decision plan, informed by diagnostics, considers these factors:
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Barrier Integrity Assessment: Diagnostics evaluate mechanical, cement, and formation barriers, determining if they are intact, compromised, or require repair or reinforcement.
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Failure Identification: Advanced diagnostics, pinpoint leaks in steel and cement barriers. This informs decisions on remedies like targeted cement squeezes or casing expansions.
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Flow Potential Zone Recognition: Diagnostics identify areas with potential flow paths, such as channels in cement, reservoir matrix, or fractures, guiding the design of an effective plugging strategy.
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P&A Method Selection: Diagnostic results inform the choice of P&A methods.
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Verification of New Barriers: Diagnostics confirm the integrity of newly implemented barriers, ensuring they effectively seal potential flow zones and meet prescribed standards.
These vital aspects can be precisely addressed and targeted with the integration of spectral acoustics TGT Chorus and TGT Indigo high-resolution temperature diagnostics. The presentation focuses on comprehensive approach the US operators utilized which served as a catalyst for optimizing and achieving success in plugging and abandonment (P&A) operations in US. It covers principles, physics and case studies.
Maxim Volkov, MSc. in Geophysics & Geoscience joined TGT Diagnostics as Principal Domain Champion, specializing in cased hole evaluation, particularly using Spectral Acoustics for Well Integrity and Plug and Abandonment. Maxim now spearheads innovative techniques for well barrier verification and reservoir performance assessment, collaborating with major oil and gas operators worldwide.
2. Casey Domingue, Manager-Wireline & Specialty Logging Operations – Empire Wireline
Presenting: “Defect and Corrosion Measurement Technology for Multiple Concentric Pipe Strings”
Using Electromagnetic (EMT) casing inspection tools to inspect dual pipe strings without pulling inner string.
Casey Domingue has a total of 20 years of oil & gas wireline experience covering all aspects of cased-hole wireline work. Casey joined the Empire team in 2020 as Account Manager in Houston. In his current role, he oversees all wireline and specialty logging operations in the US geo market.
3. Muhammad Mustafa Alam, Senior Cased Hole Geoscientist – Well Integrity & Production Logs – Weatherford International
Presenting: “Identifying Sources of Fluid Movement by Utilizing Geophone Array”
Historically, hydrophones have been utilized to detect unwanted fluid movement into and behind tubulars. These tools cannot provide directionality, are coupled to wellbore fluid, and can be less sensitive to small flow rates or leaks.
Sources of unwanted fluid movement can be more easily detected by utilizing an array of geophones. These highly sensitive geophones can detect small flow rates and low frequency events. The geophones consist of 3-axis components which can help differentiate between vertical and horizontal flow. When arranged in an array the geophones can more easily detect sporadic events, provide better repeatability, and allow for tube waves to be identified. Geophone arrays have been deployed globally to detect sources of Surface Casing Vent Flow (SCVF), Gas Migration (GM), confirm hydraulic isolation between formations or annular flow, and detect casing leaks.
Muhammad Mustafa Alam is a highly qualified engineering professional with a strong education background, holding a Bachelor's and Master’s degree in Mechanical Engineering. He is an accomplished Cased Hole Wireline professional with over 17 years of experience specializing in Well Integrity, Production Logging, and Mechanical Services. As a Well Integrity subject matter expert, he has provided technical support on a global scale. Sharing knowledge has been a cornerstone of his career and has conducted in-house training sessions and external workshops throughout his career.