FlaringFlaring Overview Reduce flaring Go to section OverviewReduce flaring Home Search Results Gas flaring contributes significantly to upstream sector emissions. TGT’s diagnostics locate the source of unwanted gas enabling it to be sealed off, thereby reducing the need to flare.Reduce flaring At an estimated 310 MtCO2, routine and non-routine gas flaring is one of the largest and most pervasive sources of upstream CO2, accounting for ~30% of all upstream emissions globally. During oil production, associated gas is produced from the reservoir together with the oil. Much of this gas is utilised, but excess gas is flared because of technical, regulatory, or economic constraints. Understanding the source is a key step in minimising the flaring of excess gas.   If unwanted gas is produced unexpectedly from targeted or non-targeted formation layers, it may be possible to shut this off if the source can be precisely located. Conventional well diagnostics can locate where gas is entering the wellbore, but not always the true source. TGT’s True Flow and Seal Integrity products can identify the primary source and pathways of unwanted gas from formations beyond the wellbore, even behind casing. This can lead the way to stopping the gas and its associated flaring. Flaring is responsible for more than 30% of all upstream CO2 emissions.

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.

Enabling cleaner energyEnabling cleaner energy Overview Secure gas storage Go to section OverviewSecure gas storage Home Search Results To reduce carbon emissions, society needs to switch from fossil fuel energy to alternatives. However, non-fossil sources only satisfy 17% of the world’s energy demands. As a transition fuel, gas offers a cleaner alternative to coal, provided it doesn’t leak from infrastructure.Secure gas storage To reduce greenhouse gas emissions, society needs to switch from fossil fuel energy to alternative forms. In 2020, only 17% of the world’s energy came from non-fossil sources, 31% came from oil, 25% from gas, and 27% from coal. At 56% of the energy mix, oil and gas are still essential. Whilst oil and coal use are in decline, gas use is trending up.   Gas is the cleanest burning fossil fuel, but with the increase in use comes the risk of methane leaks in production and storage wells. Since methane is 85x more potent as a greenhouse gas than CO2, the integrity of producing and storage wells is essential in enabling cleaner energy solutions. Used proactively, TGT’s True Integrity diagnostics can be used routinely to validate seals in gas producing and storage wells, and assure methane containment. Burning 1kg methane produces twice the energy and half the CO2 than 1kg coal

Carbon capture and storageCarbon capture and storage Overview Store captured carbon Go to section OverviewStore captured carbon Home Search Results Reducing the level of carbon in the atmosphere to safe levels requires significant carbon removal. Captured carbon is stored underground in depleted oil and gas reservoirs. TGT diagnostics can monitor the integrity of storage wells to ensure gas isn’t leaking back out.Store captured carbon Reducing the level of carbon in the atmosphere to safe levels will require both a reduction in emissions and a significant carbon removal programme. In fact, experts indicate that even if we reduce emissions to zero, existing carbon gases need to be removed from the atmosphere to prevent further climate change. Carbon capture facilities of all types are emerging globally, and some involve storing CO2 underground in depleted oil and gas fields.   Storing CO2 underground is similar to methane storage. Well and reservoir integrity is vital to avoid leakage. TGT’s True Integrity products can be used to validate integrity prior to re-purposing existing well systems, and True Flow products can be used to ensure that 100% of the injected gas is reaching the target formations. And just like conventional producing well systems, storage wells can be monitored routinely to ensure integrity compliance. Experts indicate that even if emissions are reduced to zero, existing carbon gases need to be removed from the atmosphere to prevent further climate change.

Validate sealing performance of cemented annuli Annular flow and sustained annulus pressure due to poor cement is a prevailing industry concern. But cement evaluation techniques only look at cement condition, not its sealing performance.   Cement Seal Integrity evaluates the seal performance of cemented annuli and reveals the presence of annular flow throughout the well system.   Delivered by our True Integrity system using the Chorus (acoustic) platform; Cement Seal Integrity provides the insights needed to restore and ensure annulus integrity.   Cement Seal Integrity is used routinely as a proactive measure to validate annulus integrity during well construction. Adopting a proactive approach complements traditional cement evaluation techniques to deliver a more secure well and avoid costly future problems. Challenges Evaluate seal integrity and sealing performance of cemented annuli Sustained pressure in one or more cemented annuli (SAP/SCP) Abnormal production or injection performance Channelling or micro-annulus detection Planning workover or P&A programmes Benefits Comprehensive diagnosis of leaks and channelling in cemented annuli Validation of cement seal performance Locate micro-channelling Mitigate integrity risk and ensure regulatory compliance Rapid deployment through-tubing minimises disruption and cost Locate annular leaks and flowpaths behind casing rapidly and accurately 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 MediaCement Seal Integrity gives you the clarity and insight needed to manage well system performance more effectively.Cement Seal Integrity evaluates the seal performance of cemented annuli and reveals the presence of annular flow throughout the well system.Indicative logplot for Cement Seal Integrity The passive acoustic response obtained by Chorus indicated two active formations (wide frequency high amplitude pattern) which are connected via cement channelling (low frequency, but high amplitude pattern). The case also shows the sensitivity of Chorus over a temperature response, which demonstrates how effective the Chorus can be in location of minor cement channeling and reservoir activity.