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.

Water managementWater management Overview Resource management Improve injection performance Reduce water production Go to section OverviewResource managementImprove injection performanceReduce water production Home Search Results Water is a precious natural resource that is used prolifically by the industry for a wide range of purposes, such as drilling, reservoir injection, cementing and hydraulic fracturing.Improve natural resource management Water is a precious natural resource that is used prolifically by the industry for a wide range of purposes, such as drilling, reservoir injection, cementing and hydraulic fracturing. Water can come from recycled sources, but in some areas it is sourced from natural aquifers or the oceans, and this can cause an ecological imbalance. It’s important that water is used sparingly and efficiently.   Apart from the large amounts of water used for injection, hydraulic fracturing and chemical also needs huge amounts of water to be effective. TGT has developed two specific answer products in our True Flow range that help operators assess the effectiveness of fracturing and stimulation operations—Fracture Flow and Stimulate Flow. These surveys can be deployed pre- and post-operations to help optimise fracturing and stimulation programmes, and potentially reduce associated water usage. RESERVOIR FLOW CASE STUDY A typical hydraulic fracturing job uses 5-10 million gallons of water per well. Improve injection performance Most oil reservoirs will inevitably require additional pressure support to maintain production and improve oil recovery. Water injection is used widely for this purpose and many oilfields are injected with tens to hundreds of thousands of barrels per day. Pumping water is energy intensive and the resulting CO2 emissions can range from 1-2 kgCO2 per barrel. In fact, water injection is responsible for ~40% of total CO2 emissions for a typical oilfield.   Making matters worse, well completion and formation integrity issues can lead to water being diverted away from the target reservoir. This can result in abnormally high injection rates, reduced field production performance, and high water cut in producer wells. TGT’s True Flow products are being used globally by operators to ensure that all injected water is reaching the target and revealing where it is not. In many cases, these diagnostics lead to a significant reduction in water volumes and CO2 emissions, and increased field production. RESERVOIR FLOW CASE STUDYFIBRE FLOW CASE STUDY Pumping 10,000 barrels of water per day produces 5.4 ktCO2 annually. Reduce water production High water cut is a persistent industry challenge responsible for unnecessarily high CO2 emissions and higher carbon per barrel. Excess water needs to be managed at surface, treated then reinjected or disposed of, and this requires energy. Also, excess water often means less oil, reduced recovery and longer production times, increasing emissions even further. And complicating the issue, produced water may be channeling from several elusive sources hidden behind the casing.   In many cases, excess water cut can be minimised or cured. If the operator can identify the true source of water downhole, measures can be taken to shut-off the water and restore oil production to lower carbon and economic levels. TGT’s True Flow products are used widely for this purpose. Unlike conventional diagnostics that can only detect water entering the wellbore, TGT’s through-barrier diagnostics can reveal the true source behind casing, enabling effective remediation, improved recovery rates and reduced carbon emissions. MULTI-SEAL INTEGRITY CASE STUDYTOTAL FLOW CASE STUDY High water-cut leads to higher CO2 barrel and lower oil production rates

Energy and resource efficiencyEnergy and resource efficiency Overview Infrastructure performance Intervention efficiency Improve injection performance Reduce water production Go to section OverviewInfrastructure performanceIntervention efficiencyImprove injection performance Reduce water production Home Search Results Producing hydrocarbons requires energy. Turbines and diesel generators account for 70% of upstream CO2 emissions. Our diagnostics can help you become more energy efficient and reduce your carbon overhead.Improve infrastructure performance Building and operating hydrocarbon extraction infrastructure represents a huge investment in energy, capital, time, materials and people resources. Maximising the return on that resource must be achieved, while protecting people and the planet. If a well or reservoir is not producing to its full potential during its life then the resource that built or operates it is not being fully leveraged and some is being wasted. Equally, if maintenance and workover resources are being utilised, they should operate efficiently and contribute to overall asset performance with the goal of keeping wells safe, clean and productive.   All TGT diagnostic products are adept at revealing inefficiencies and guiding measures that enable existing infrastructure and resources to operate at maximum efficiency. For example, if a well is producing at high water cut, our Total Flow product will reveal the exact sources of water to enable targeted remediation. True Integrity products can be used proactively to identify casing weakness before the casing fails, helping to maintain asset performance and preventing more costly scenarios. Equally, because workover and rig resources are better targeted, time and energy is saved in getting the job done right first time. TOTAL FLOW CASE STUDYPRIMARY SEAL INTEGRITY CASE STUDY Drilling a single deepwater well can produce more than 20 ktCO2 Improve intervention efficiency Well delivery and intervention operations such as drilling, fracking, workovers, decommissioning [P&A] and diagnostic surveys require energy intensive surface equipment. Rigs, trucks, and pumps derive power from diesel engines or gas turbines that emit CO2 when the fuel is burned. A typical semi-submersible drilling rig emits roughly ~130 tCO2 per day and a Light Well Intervention vessel around 30 tCO2 per day. Improving efficiency and minimising the time to perform operations is a key factor in reducing energy consumption and emissions.   All TGT diagnostic products deliver insights that enable all types of operations to be carefully planned and precisely targeted so they can be executed efficiently with precision. Also, by enabling ‘lighter’ or ‘rigless’ interventions, our diagnostics can be deployed with minimal carbon footprint before heavier equipment is mobilised. Lastly, because through-barrier diagnostics provide a more complete picture, we provide maximum information in the minimum amount of time. Time savings translate to both cost and carbon savings and our aim is make every hour count. MULTI TUBE INTEGRITY CASE STUDY A typical Jack-up rig emits 70 tCO2 per day. Improve injection performance Most oil reservoirs will inevitably require additional pressure support to maintain production and improve oil recovery. Water injection is used widely for this purpose and many oilfields are injected with tens to hundreds of thousands of barrels per day. Pumping water is energy intensive and the resulting CO2 emissions can range from 1-2 kgCO2 per barrel. In fact, water injection is responsible for ~40% of total CO2 emissions for a typical oilfield.   Making matters worse, well completion and formation integrity issues can lead to water being diverted away from the target reservoir. This can result in abnormally high injection rates, reduced field production performance, and high water cut in producer wells. TGT’s True Flow products are being used globally by operators to ensure that all injected water is reaching the target and revealing where it is not. In many cases, these diagnostics lead to a significant reduction in water volumes and CO2 emissions, and increased field production. RESERVOIR FLOW CASE STUDYFIBRE FLOW CASE STUDY Pumping 10,000 barrels of water per day produces 5.4 ktCO2 annually Reduce water production High water cut is a persistent industry challenge responsible for unnecessarily high CO2 emissions and higher carbon per barrel. Excess water needs to be managed at surface, treated then reinjected or disposed of, and this requires energy. Also, excess water often means less oil, reduced recovery and longer production times, increasing emissions even further. And complicating the issue, produced water may be channeling from several elusive sources hidden behind the casing.   In many cases, excess water cut can be minimised or cured. If the operator can identify the true source of water downhole, measures can be taken to shut-off the water and restore oil production to lower carbon and economic levels. TGT’s True Flow products are used widely for this purpose. Unlike conventional diagnostics that can only detect water entering the wellbore, TGT’s through-barrier diagnostics can reveal the true source behind casing, enabling effective remediation, improved recovery rates and reduced carbon emissions. MULTI-SEAL INTEGRITY CASE STUDYTOTAL FLOW CASE STUDY High water-cut leads to higher CO2 per barrel and lower oil production rates.

Ensure your well system is performing with True Integrity True Integrity depends on the condition and sealing performance of well system barriers working together to support safe flow – and one can’t work without the other. True Integrity diagnostics critically evaluate both aspects to expose the complete picture.   Well system behaviour is contingent on integrity dynamics. Understanding the collective integrity of the tubes, seals, and barriers that make a well function is crucial to guarantee secure passage for pressurised fluids.   True Integrity takes a proactive approach to mitigating future performance issues with a health check that ensures you are able to anticipate and act without delay. The system approach True Integrity diagnostics require more than a tool. Our through-barrier diagnostic system assesses the reality of your well system’s current condition and sealing performance with a unique design based on accuracy, fidelity and totality to produce actionable data.   Our True Integrity diagnostic system follows a proven workflow and is powered by four remarkable technology platforms – Chorus, Pulse, Indigo and Maxim. Tasked independently, they come together within the Maxim digital workspace to reveal a complete picture of tube and seal integrity throughout the well system.   Each ingredient is the result of our ingenuity and relentless drive to reveal a greater truth. The product approach The final link in the True Integrity diagnostic system chain is our tailored portfolio of proprietary products.   The products are designed to address a duo of integrity challenges. Tube Integrity products evaluate the condition of well completion tubulars while Seal Integrity products evaluate barrier sealing performance. Both are critical to keep your well safe and productive. True Integrity Seal Products Ensure your well is performing with these True Integrity Seal products: Multi Seal Integrity Primary Seal Integrity Cement Seal Integrity Packer Seal Integrity Drilling Losses True Integrity Tube Products Ensure your well is performing with these True Integrity Tube products: Multi Tube Integrity Primary Tube Integrity Dual String Tube Integrity Chrome Tube Integrity Collars Tube Integrity Resources System flyers(2) Platform flyers(8) Product flyers(22) Case studies(36) Technical papers(128) More(48) Intellectual property(48) White papers(0) ResourcesMediaCement Seal Integrity evaluates the seal performance of cemented annuli and reveals the presence of annular flow throughout the well system.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.Multi Seal is used in a targeted fashion to investigate a known integrity breach anywhere in the well system. Barriers can also be validated proactively to confirm integrity. Either way, Multi Seal provides the insights needed to restore or maintain a secure well.Packer Seal Integrity evaluates the seal performance of packers, locating leaks quickly and with precision.Well sketch shows a range of typical primary barrier leaks and unwanted flowpaths that Primary Seal Integrity can diagnose. Chrome Tube Integrity gives you the clarity and insight needed to manage well system performance more effectively.Well sketch shows a range of typical collar condition scenarios that Collars Tube Integrity can diagnose.Well sketch shows a range of typical barrier condition and metal loss scenarios that Dual String Tube Integrity can diagnose.Multi Tube provides an accurate barrier-by-barrier assessment of up to four concentric tubulars from a single through-tubing deployment.Well sketch shows a range of typical barrier condition and metal loss scenarios that Primary Tube Integrity can diagnose.

Validate sealing performance of multiple barriers Well system integrity depends on the collective performance of the many barriers that form it. A single breach can happen anywhere, at any time, and undermine the integrity of the entire system.   Multi Seal evaluates the seal performance of multiple barriers, locating leaks and flowpaths throughout the well system, from the wellbore to the outer annuli.   Delivered by our True Integrity system with Chorus (acoustic) technology, Multi Seal Integrity provides a clear diagnosis of leaks and rogue flowpaths so the right corrective action can be taken.   Multi Seal Integrity is used in a targeted fashion to investigate a known integrity breach anywhere in the well system. Barriers can also be validated proactively to confirm integrity. Either way, Multi Seal provides the insights needed to restore or maintain a secure well. Challenges Evaluate integrity and sealing performance of multiple barriers Sustained pressure in one or more cemented annuli (SAP) Abnormal production or injection performance Barrier leaks and unwanted flowpaths throughout the well system Micro-leaks throughout the well system Completion component failures Benefits Comprehensive diagnosis of leaks and unwanted flowpaths throughout the well system Identify true source of SAP in any annulus Locate micro-leaks and flowpaths Locate leaks and flowpaths to mitigate integrity risk and ensure regulatory compliance Rapid deployment through-tubing 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 MediaMulti Seal Integrity gives you the clarity and insight needed to manage well system performance more effectively.Multi Seal evaluates the seal performance of multiple barriers, locating leaks and flowpaths throughout the well system, from the wellbore to the outer annuli.Indicative logplot for Multi Seal Integrity Oil producer was never perforated due to an integrity issue in the A-annulus. Multi Seal Integrity was executed under A-annulus pumping conditions to determine leak points across multiple barriers. Log plot shows collars of 9⅝ casing is leaking at 35.5m, 85.0m, 122.2m, 196.3m, 419.0m, 443.5m, 628.9m, 665.8m and 789.7m.

Our commitment Backed by proven academic theories, R&D investment and years of experience, our quest to reveal a greater truth about the well system is the cornerstone of our commitment to the TGT diagnostic system approach.   Our in-house expertise sets us apart. Our innovation process incorporates: programme design and data acquisition methodology, tool and sensor manufacturing, software development to process and model the raw data, and data interpretation by a dedicated team of well log analysts. We are unique in what we offer our clients. Technology centre TGT Technology Centre is home to our research and development (R&D) and Manufacturing teams.   The centre is a full-cycle enterprise, representing technology development at all stages of its development – from an idea to a commercial production and subsequent maintenance. An unusual attribute for a through barrier diagnostics service company.   Our Technology Centre plays home to: advanced research labs, software development hub, supercomputer with parallel design, tools and sensors manufacturing, and quality control and testing facilities.   Housed also in our Technology Centre are advanced testing facilities which put our technology through its paces prior to commercialisation or distribution. These include:  pressure, temperature and vibration testing units, fluid dynamics models in both simulated reservoir and well conditions, calibration stands, anechoic chamber, test well among others.   Our inhouse knowledge and capabilities give us the advantage; and perfectly position us to lead the through-barrier diagnostics category and reveal a greater truth for customers. Research and development R&D is at the heart of everything we do, and each year we plough 15% of annual revenues back into funding pioneering innovation.   Our research aims to bring together the best thinking and ideas - not only from within TGT, but we also work closely with universities and our customers to deliver diagnostics which meet the needs of the industry.   Manned by a talented cadre of engineers, petrophysicists and geoscientists, we are continuously improving our diagnostic capabilities to assert our position as the global leader in through-barrier diagnostics.   Our proprietary systems and products are developed entirely in-house from market analysis, concept and feasibility studies to design, mock-ups, experimental prototypes and inception of digital processing and modelling software.   Development and testing of new technology continues until it fits the product description. We follow a rigorous testing protocol. Only once prototype technology is proven to deliver, will we launch a pilot project. The optimised TGT platform or product you are using today is the result of years of development. Manufacturing TGT remains dedicated to manufacturing our own products and technologies entirely inhouse. We not only pursue automated assembly, but also strive to cultivate technicians with outstanding skills. By establishing high standards of safety and quality assurance, we strengthen our efforts to ensure trust in the TGT brand.   TGT has continued to advance our in-house production of key devices, components and electronic boards as well as carrying out in-house equipment maintenance.   We are dedicated to producing top quality products, each of which promises reliability and safe operations when deployed in the well system. Our certified testing facilities enable us to conduct in-house tests to ensure compliance with international standards and regulations. We conduct stringent quality tests to ensure the highest quality output. Software development Our bespoke digital platform, Maxim, brings together each stage in the True Flow and True Integrity diagnostic system into a central software platform. Maxim is used by the Geoscience department to provide customers with accurate diagnostics they seek.   More than 20-years of knowledge and expertise in performing through-barrier diagnostics has contributed to Maxim’s capabilities diagnostic capabilities. Developed and engineering entirely in-house, Maxim is proprietary to TGT.   We don’t need to wait for the latest software release to benefit from processing and modeling improvements, instead an ongoing dialogue between Geoscience, R&D and the in-house software developers means our diagnostic products always benefit from the latest technology. Strategic partnershipsTGT’s 20-year commitment to innovation in the field of through-barrier well system diagnostics has made us a sought-after partner of industry giants, academics and other sector relevant entities, with whom we are developing new technologies and solutions for the future.