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  • Pollution

    PollutionPollution Overview Reduce fugitive emissions Secure abandoned wells Eliminate Pollution Go to section OverviewReduce fugitive emissionsSecure abandoned wellsEliminate Pollution Home Search Results Oil and other liquids can leak from active wells and abandoned or ‘orphaned’ wells. TGT diagnostics locate the source and flowpaths of rogue leaks so they can be sealed off, reducing pollution.Reduce fugitive emissions Well systems are designed to connect high-pressure oil or gas in deep underground reservoirs to surface flowlines securely with full containment. Rigorous industry standards necessitate the presence of at least two ‘integrity barriers’ between produced fluids and the environment outside of the well system. Occasionally, one or more barriers can fail allowing fluids to escape, sometimes with dire consequences.   Apart from the major oil leaks that make headlines, some smaller oil and gas leaks can continue undetected for years, especially if they are hidden underground or migrate far from the well system. TGT’s Seal Integrity products are designed to locate even the smallest seal failure anywhere within the well system, enabling precise targeted repair. Used proactively, the same diagnostics can be used routinely to ensure well barriers are intact at all times, reducing fugitive emissions. MULTI-SEAL INTEGRITY CASE STUDY Methane emissions from upstream oil and gas operations are 1.9 GtCO2e annually. Secure orphan and abandoned wells Orphan wells typically have no legal owner and may have been abandoned without undergoing a proper decommissioning or plugging process. Methane or liquid emissions from orphan wells can be significant contaminants, especially when the number of orphan or incorrectly decommissioned wells is thought to be in the millions globally. The burden of responsibility for these wells typically falls with operators, regulators or local government, and permanently sealing them is a top priority.   Validating well barrier status and revealing emission sources downhole inside the well system is the first step in sealing these wells properly. TGT’s Seal Integrity and Tube Integrity surveys are used to achieve exactly that. Precision diagnostic insights inform and guide the decommissioning agent to design and execute an effective plugging programme. This approach is equally applicable for any well decommissioning operation, not just for orphan wells, helping operators to secure them efficiently and cost effectively. Regulators estimate >3.5 million abandoned wells in US emit 7.1 mtCO2e annually. Eliminate pollution According to the ISO standard for ‘well integrity’ (ISO/TS 16530-2), a typical well system contains 26 potential leak paths that could lead to fluids escaping the well system. This is why the standard calls for a ‘dual barrier’ approach underpinned by routine testing of well barriers. Despite these efforts, oil or other harmful fluids such as hydrogen sulfide (H2S) can sometimes spill to the environment.   In most cases these spills are visible or detected quickly, enabling operators to take urgent action. However, sometimes they may go undetected for months or years because there is no visible warning. An example of this might be oil or gas flowing to and contaminating aquifers. TGT’s Seal Integrity answer products are specifically aimed at locating unwanted fluid flow anywhere within the well system, enabling precise targeted repair. Used proactively, TGT diagnostics can be used to ensure well barriers are intact at all times, reducing the risk of pollution. PRIMARY SEAL INTEGRITY CASE STUDY A typical well system has 26 potential leak points.

  • Methane emissions

    Methane emissionsMethane emissions Overview Stop methane venting Secure abandoned wells Emissions Go to section OverviewStop methane ventingSecure abandoned wellsEmissions Home Search Results Oil and gas producers vent leaked methane from casing cavities to reduce pressure. TGT’s diagnostics can locate the source and flowpaths of rogue gas leaks, ensuring they can be sealed, thereby reducing the need to vent.Stop methane venting Sustained annulus pressure (SAP/SCP) is caused by a build-up of fugitive fluids such as gas in the annular spaces surrounding well system casings. The casings are designed to withstand high pressure but if this pressure is reached, the gas is diverted to the production stream or vented to atmosphere. The global warming potential of methane is ~80x that of CO2, so even small amounts are damaging and must be contained.   These rogue fluids reach the annulus via seal failures and flowpaths that begin at hydrocarbon-charged formations and continue towards surface causing a build-up of annulus pressure. TGT’s True Flow and Seal Integrity products can locate the source of annular fluids and trace the flowpaths, enabling well operators to target effective repairs and eliminate SAP-related methane venting. Methane has 85x higher global warming potential than CO2. Secure orphan and abandoned wells Orphan wells typically have no legal owner and may have been abandoned without undergoing a proper decommissioning or plugging process. Methane or liquid emissions from orphan wells can be significant contaminants, especially when the number of orphan or incorrectly decommissioned wells is thought to be in the millions globally. The burden of responsibility for these wells typically falls with operators, regulators or local government, and permanently sealing them is a top priority.   Validating well barrier status and revealing emission sources downhole inside the well system is the first step in sealing these wells properly. TGT’s Seal Integrity and Tube Integrity surveys are used to achieve exactly that. Precision diagnostic insights inform and guide the decommissioning agent to design and execute an effective plugging programme. This approach is equally applicable for any well decommissioning operation, not just for orphan wells, helping operators to secure them efficiently and cost effectively. Regulators estimate >3.5 million abandoned wells in US emit 7.1 mtCO2e annually. Reduce fugitive emissions Well systems are designed to connect high-pressure oil or gas in deep underground reservoirs to surface flowlines securely with full containment. Rigorous industry standards necessitate the presence of at least two ‘integrity barriers’ between produced fluids and the environment outside of the well system. Occasionally, one or more barriers can fail allowing fluids to escape, sometimes with dire consequences.   Apart from the major oil leaks that make headlines, some smaller oil and gas leaks can continue undetected for years, especially if they are hidden underground or migrate far from the well system. TGT’s Seal Integrity products are designed to locate even the smallest seal failure anywhere within the well system, enabling precise targeted repair. Used proactively, the same diagnostics can be used routinely to ensure well barriers are intact at all times, reducing fugitive emissions. MULTI-SEAL INTEGRITY CASE STUDYMULTI-SEAL INTEGRITY CASE STUDY Methane emissions from upstream oil and gas operations are 1.9 GtCO2e annually

  • Cascade3

    The most powerful flow analysis platform ever created for horizontal well systems Made by experts for experts, Cascade3 builds on two decades of practical knowledge and experience applying science and mathematics to solving the most complex downhole flow scenarios. Incorporating the industry’s most advanced thermodynamic and hydrodynamic modelling codes, Cascade3 transforms temperature, pressure, and other well system data into continuous reservoir flow profiles. Crucially, the flow profiles reflect flow activity in and out of the reservoir, delivering the truest picture possible of reservoir behaviour and inflow/outflow downhole.  The new Horizontal Flow diagnostics powered by Cascade3 overcomes many of the challenges faced by conventional production surveys, delivering a more reliable and complete assessment of flow dynamics in horizontal wells in a wider range of completion scenarios. Equipped with the right information, asset teams can take direct action to keep well and reservoir performance on track.  Cascade3 brochure Modelling At the heart of Cascade3 is Torrent – a remarkable modelling and simulation engine that predicts the hydrodynamic and thermodynamic behaviour of fluids and their surroundings as they flow through the well-reservoir system.     Torrent features a unique 3D fine-grid modelling framework and can simultaneously solve three distinct flow geometries – radial, spherical, and linear in fractures – reflecting the three main types of flow that occur in a horizontal well system. Apart from providing a more realistic flow modelling environment, these features mean that Cascade3 delivers accurate continuous flow profiles in a wide variety of completion and reservoir settings, including fractured formations.  FeaturesBenefits Production and Reservoir Engineers depend on downhole flow profiles to manage well and reservoir performance. Conventional wellbore production surveys can only sense certain flows entering the well completion and cannot measure inflow/outflow where it matters most – at the reservoir behind the completion. Also, even wellbore flow profiles can be compromised in open hole, and by viscous fluids, low flow rates and the complex flow regimes that occur in horizontal wells. Incorrect flow profiles can lead to missed opportunities and poor well and field management decisions.    Horizontal Flow with Cascade3 solves many of the diagnostic challenges faced by Reservoir and Production Engineers, providing them with the flow insights they need to reduce operating costs and energy consumption, and increase ultimate recovery.     Full benefits table found here. Cascade architectureProgrammes & methodsTools & measurementsProcessing & modelingAnalysis & interpretationProducts Platform partners Cascade3 works alongside three other technology platforms—Chorus, Indigo and Maxim, that together constitute the True Flow diagnostic system. Each platform has a specific role in providing Horizontal Flow insights.    Whereas Cascade3 quantifies flow activity by modelling and simulating temperature and pressure changes in the well system, Chorus locates and characterises flow activity by sensing and imaging acoustic energy. For example, Chorus data can help the analyst distinguish between wellbore flow, reservoir or matrix flow and fracture flow, and provide a clear indication of active zones. And both temperature and acoustic data can help distinguish between liquids and gas.     Multisensory Indigo provides a host of wellbore measurements, including high-precision temperature that feeds into Cascade3, pressure, and a range of standard and unique production sensors, as well as real-time data transmission to the surface. Maxim is the digital workspace where analysts plan the diagnostic programme, integrate, and process the acquired data, perform the modelling and the in-depth analysis delivered in the final Horizontal Flow answer product.  Resources Platform flyers(8) Hardware specifications(7) Case studies(36) Technical papers(128) Intellectual property(48) More(45) Product flyers(22) System flyers(2) White papers(0) Product animations(21) Resources

  • True Integrity Seal Products
    Drilling Losses

    Locate drilling fluid losses Drilling fluid losses pose a significant risk to operational safety and can stop drilling in its tracks, leading to costly delays. Pinpointing the losses rapidly and accurately is critical to continuing with safe and efficient drilling operations.   Drilling Losses pinpoints lost circulation zones rapidly and accurately, without pulling the drill string.   Delivered by our True Integrity system using the Chorus (acoustic) platform, Drilling Losses provides the precise information needed to target the right remediation approach.   Drilling Losses is used in a targeted fashion to quickly locate the lost circulation zone or zones, so normal drilling operations can resume without further delay. Challenges Drilling fluid losses Lost circulation while drilling Benefits Locate lost circulation zones rapidly to reduce downtime and cost Mitigate drilling risk Rapid deployment through drill pipe minimises disruption and cost Better remediation decisions, precisely targeted Resources Product flyers(22) Case studies(36) Product animations(21) Platform flyers(8) System flyers(2) More(183) Hardware specifications(7) Technical papers(128) Intellectual property(48) White papers(0) Resources Related Systems & Platforms True Integrity System Flow isn't workable without integrity. And system integrity depends on the collective integrity of the tubes, seals and barriers that make a well function. LEARN MORE Platforms Chorus Indigo Maxim MediaDrilling Losses gives you the clarity and insight needed to manage the well more effectively.Drilling Losses is used in a targeted fashion to quickly locate the lost circulation zone or zones, so normal drilling operations can resume without further delay.Indicative logplot for Drilling Losses Chorus data obtained while the well was experiencing drilling fluid losses indicated active intervals which were taking the fluid. The most active zone or the major fluid loss zone was indicated at the bottom. However, there were other fluid loss zones that have a localised acoustic pattern - this could be due to contributions through the fracture network developed during the drilling process.