11 Search Results for “ 828”

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  • Technical papers
    SPE-182856-MS – Formation Pressure Evaluation for producing wells without shutting down the well, using Triple Spectral Noise Logging (TSNL)
  • Technical papers
    SPE-182889-MS – Quantitative Evaluation of the Reservoir Flow Profile of Short String Production with High Precision Temperature (HPT) Logging and Spectral Noise Logging (SNL) in the Long String of a Dual Completion Well
  • Decarbonise with diagnostics

    Decarbonise with diagnosticsDecarbonise with diagnostics Overview Decarbonise video Greenhouse gas emissions How can TGT help? Applications Go to section OverviewDecarbonise videoGreenhouse gas emissionsHow can TGT help?Applications Home Search Results Global warming, climate change, and hydrocarbons Today, global warming is an existential crisis facing our planet and all of its inhabitants. Climate science tells us that if global average temperatures rise more than 1.5°C above pre-industrial levels, the impact could become catastrophic and irreversible.   In the oil and gas industry, we are all aware of the very real impact the climate crisis is having on society and the planet. Whilst we provide energy for the world to prosper, the way most of this energy is produced as well as consumed, is ultimately leading to climate change.   Whilst we continue to develop clean energy solutions, the reality is that ~56% of the global energy mix continues to come from hydrocarbons, and it will take years, if not decades, before the balance shifts to cleaner sources. Global warming, climate change, with diagnostics Today, global warming is an existential crisis facing our planet and all of its inhabitants. Climate science tells us that if global average temperatures rise more than 1.5°C above pre-industrial levels, the impact could become catastrophic and irreversible.   In the oil and gas industry, we are all aware of the very real impact the climate crisis is having on society and the planet. Whilst we provide energy for the world to prosper, the way most of this energy is produced as well as consumed, is ultimately leading to climate change.   Whilst we continue to develop clean energy solutions, the reality is that ~56% of the global energy mix continues to come from hydrocarbons, and it will take years, if not decades, before the balance shifts to cleaner sources. Watch our video to find out moreGreenhouse gas emissions in GtCO2e Every barrel of oil or gas equivalent has a carbon overhead because of the energy consumed to produce it, the flaring of gas, and the leakage or venting of methane from well infrastructure. In 2019, upstream activities released ~2.9 GtCO2e, or ~6% of the total annual greenhouse gases produced by human activity.   As suppliers of energy to society, our industry has a vital role to play in taking action today to achieve a low-carbon future.   TGT is at the forefront of this with our diagnostics-led sustainability framework. With this, our role is to help oil and gas producers deliver energy through the transition, but with significantly lower environmental impact. Every barrel of oil or gas equivalent has a carbon overhead because of the energy consumed to produce it, the flaring of gas, and the leakage or venting of methane from well infrastructure. In 2019, upstream activities released ~2.9 GtCO2e, or ~6% of the total annual greenhouse gases produced by human activity.   As suppliers of energy to society, our industry has a vital role to play in taking action today to achieve a low-carbon future.   TGT is at the forefront of this with our diagnostics-led sustainability framework. With this, our role is to help oil and gas producers deliver energy through the transition, but with significantly lower environmental impact. How can TGT help you reduce your carbon footprint? TGT is a different kind of company. Our unique technology and fresher thinking take us beyond the traditional restrictions of the wellbore, seeing more, seeing further. We create powerful diagnostics that help you to keep wells safe, clean and productive.   Our diagnostics help operators and regulators achieve their NetZero targets by revealing inefficiencies in energy-intensive operations and locating sources of greenhouse gas. Equipped with the right information, our customers can take evasive action to improve energy efficiency, decarbonise operations and reduce environmental impact. We’re out of time. Not options.We’re out of time. Not options.Applications There are several areas where TGT can help you to reduce emissions and support your sustainability targets: Energy and resource efficiency Flaring Methane emissions Pollution Water management Carbon capture and storage Enabling cleaner energy

  • Pulse1

    Tube integrity diagnostics delivering true wall thickness Pulse1 is the newest addition to our Pulse electromagnetic platform; one of five proprietary platforms that provide powerful through-barrier diagnostics to the oilfield.   Pulse1 is the industry’s first slimhole tube integrity technology capable of delivering ‘true wall thickness’ measurements of production tubing in eight sectors, with complete "all-around" sensing of tube wall condition.   Pulse1 has been designed to meet the growing industry need for "no compromise" integrity management, and overcome the drawbacks of current technologies, especially multifinger calipers and conventional electromagnetics.   Calipers measure internal diameter and estimate wall thickness by assuming a ‘nominal’ outside diameter (OD). Variations in the actual OD and external corrosion, both invisible to calipers, can invalidate the thickness value. Similarly, scale or wax deposits on the inner surface can mask internal defects and lead to further false readings. Pulse1’s ability to measure actual wall thickness in multiple sectors eliminates these issues, delivering greater accuracy in a wider range of scenarios.   Another consideration with calipers is coverage. Caliper fingers touch 10-30% of the inner wall surface, so localised metal loss can be missed. And in corrosion resistant tubulars, the millimeter-thin fingertips could scratch protective coatings, exposing the alloy beneath.   Pulse1 overcomes these challenges and many more, making it the ideal choice for routine or targeted tube integrity surveillance. DOWNLOAD BROCHUREApplications Manage integrity of primary tubulars. Routine or targeted surveillance of primary tube condition. Time-lapse tube condition monitoring. Identify internal and external defects. Assess tube condition in the presence of scale, wax or gas. Evaluate the integrity of high-chrome completions. Check status and orientation of perforations. Benefits Enables "no-compromise" integrity management. Delivers actual wall thickness for accurate compliance assessment. Better remediation decisions, precisely targeted. Spot tube weaknesses before it fails. Improved efficiency and reduced intervention costs. Accurate tube assessment in wide range of scenarios. Avoid caliper scratching and monitor high-stakes completions. Maintain productivity. Features Resources Platform flyers(8) Hardware specifications(7) Case studies(36) Technical papers(128) Product flyers(22) More(50) System flyers(2) Intellectual property(48) White papers(0) Resources

  • Cascade

    Where heat measurements become flow insights Harnessing thermal energy to quantify flow, from the reservoir to the wellbore.   Fluids moving through the reservoir to the well system have thermal mass and can heat or cool the areas they touch. These temperature changes carry valuable information about fluid behaviour, particularly flow rates and profiles.   The physical laws of thermo-hydrodynamics are incredibly complex, and the interactions between them even more so. The 3D world of metal, concrete and earth that we call the 'well system' adds more complexity. Extracting accurate flow data from this environment can seem like an impossible task.   But not for Cascade.   TGT founded its business on transforming temperature changes into flow information, and since then we have taken this capability further than anyone.   Today, Cascade delivers that capability through our True Flow products to reveal flow like never before. Cascade architectureProgrammes & methodsTools & measurementsProcessing & modelingAnalysis & interpretationProducts Our approach We recognise that delivering accurate diagnostics requires not only the highest fidelity measurements, but also a system-based approach. It is important to have the best sensors and measurements, but it also important to use them in the right way and then to filter, process and model the data into tangible answers.   We pursue a diagnostic system approach where multiple platforms come together, bringing their own unique diagnostic capability to be used in the framework of the proven workflow.   Cascade is our thermal platform and, when in the hands of our engineers and analysts, can qualify and quantify any kind of flow event, critically reservoir flow, and reveal the relationship between the two. Pedigree Cascade diagnostic platform has been designed and engineered entirely in-house. More than 10 years of pioneering scientific research, ingenuity and direct field experience in applying thermal flow diagnostics to thousands of well systems globally. Advancing industry knowledge in temperature, hydrodynamics and 3D numerical modeling. Two confirmed patents (and patent pending) for specific data acquisition techniques required for reservoir flow quantification in producers and injectors. Tested and proven in several thousand well systems, servicing more than 70 international operators. More than 70 recognised industry publications. 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) ResourcesMediaOur True diagnostic systems and products extract accurate information from your well and turn it into unique actionable insights so you can manage performance safely, productively and profitably.TGT continues to advance our in-house production of key devices, components and electronic boards.

  • Indigo

    Multisense functionality completes the diagnostic picture in real-time Delivering the right information at the right time is fundamental to successful diagnostics. Measurements must be accurate and appropriate for the task, particularly when you want to see more.   Many companies use mass produced, off-the-shelf tools to make and convey well measurements. But not all follow our exacting design standards.   That’s why we make our own.   Indigo is a seamless ‘silent’ platform of wellbore sensors, memory, communication and power modules that have been engineered to synchronise perfectly with TGT’s Chorus, Cascade and Pulse technology. The result is enhanced measurement accuracy and a more complete picture.   Also, Indigo enables memory mode and real-time operation. This capability provides extra flexibility and boosts the efficiency of through-barrier interventions. Indigo architectureProgrammes & methodsTools & measurementsProcessing & modelingAnalysis & interpretationProducts Our approach We recognise that delivering accurate diagnostics requires not only the highest fidelity measurements, but also a system-based approach. It is important to have the best sensors and measurements, but it also important to use them in the right way and then to filter, process and model the data into tangible answers.   We pursue a diagnostic system approach where multiple platforms come together, bringing their own unique diagnostic capability to be used in the framework of the proven workflow.   Indigo is our multi-sense platform, which provides complimentary measurements required to deliver diagnostics for True Flow and True Integrity products. True Flow System focuses on locating and quantifying flow and the True Integrity System is used to evaluate the condition of tubulars and validate sealing performance. Pedigree 10 years of engineering ingenuity and direct field experience in applying wellbore measurements to thousands of well systems globally. Patented measurement capability. Experts in high-performance, low-noise electronic circuit design. Designed and built entirely in-house at our Technology Centre. Tested and proven in thousands of well systems for more than 70 international operators. MediaPatented measurement capabilityComprehensive analysis and interpretation of wellbore measurements complement through-barrier measurements

  • True Integrity Seal Products

    Keep track of reservoir pressure without stopping production, even behind casing Knowing reservoir pressure is fundamental to managing well and reservoir performance more effectively. But assessing formation pressure behind casing using traditional techniques can be costly, time consuming and disruptive. Reservoir Pressure provides formation pressure information behind casing, bringing the critical insights needed without the cost and disruption of more invasive techniques. Delivered by our True Flow system with Chorus technology and proprietary Polygon modelling code, Reservoir Pressure provides the clarity and insight needed to manage well and reservoir performance more effectively. Reservoir Pressure has become an invaluable resource for operators managing assets to improve or maintain well and reservoir performance. Reservior pressure assesses formation pressure behind casing so you can manage well and reservoir performance… more… effictively Challenges Evaluate tube integrity of multiple tublars Managing integrity of all well system tublars Routine or targeted surveillance of tubular condition Time-lapse barrier condition monitoring. Assessing maximum allowable annular surface pressure [MAASP] Identifying internal and external defects Assessing tube condition in the presence of scale Pre-workover, pre-handover, or pre-abandonment assessment Verifying completion design Insights Proactive integrity management mitigates risk and maintains safe and productive operation Track and validate tube condition over time Spot tube weakness before it fails Through-tubing deployment minimises disruption and cost. Comprehensive validation of barrier condition in a single run. Understand true wall thickness Identify internal vs. external defects in primary tubes [when used with caliper] Better remediation decisions, precisely targeted Maintain regulatory compliance Maintain well system integrity Resources Product animations(21) Case studies(36) White papers(0) No Icon () Technical papers(128) More(63) Intellectual property(48) Hardware specifications(7) Platform flyers(8) Product Media

  • True Integrity Tube Products

    Keep track of reservoir pressure without stopping production, even behind casing Knowing reservoir pressure is fundamental to managing well and reservoir performance more effectively. But assessing formation pressure behind casing using traditional techniques can be costly, time consuming and disruptive. Reservoir Pressure provides formation pressure information behind casing, bringing the critical insights needed without the cost and disruption of more invasive techniques. Delivered by our True Flow system with Chorus technology and proprietary Polygon modelling code, Reservoir Pressure provides the clarity and insight needed to manage well and reservoir performance more effectively. Reservoir Pressure has become an invaluable resource for operators managing assets to improve or maintain well and reservoir performance. Reservior pressure assesses formation pressure behind casing so you can manage well and reservoir performance… more… effictively Challenges Evaluate tube integrity of multiple tublars Managing integrity of all well system tublars Routine or targeted surveillance of tubular condition Time-lapse barrier condition monitoring. Assessing maximum allowable annular surface pressure [MAASP] Identifying internal and external defects Assessing tube condition in the presence of scale Pre-workover, pre-handover, or pre-abandonment assessment Verifying completion design Insights Proactive integrity management mitigates risk and maintains safe and productive operation Track and validate tube condition over time Spot tube weakness before it fails Through-tubing deployment minimises disruption and cost. Comprehensive validation of barrier condition in a single run. Understand true wall thickness Identify internal vs. external defects in primary tubes [when used with caliper] Better remediation decisions, precisely targeted Maintain regulatory compliance Maintain well system integrity Resources Intellectual property(48) Product animations(21) Technical papers(128) Case studies(36) No Icon () More(15) White papers(0) Hardware specifications(7) Platform flyers(8) Product Media

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    Case studies
    CS012 Dual String Flow

    Challenge A dual-string completion is a cost-effective method for producing from multilayered reservoirs using a single wellbore. However, the perforation interval in the upper reservoir is not usually surveyed because of safety concerns about conventional tools becoming entangled around the long string as they exit below the short-string tubing shoe. An Abu Dhabi offshore well was drilled and completed as a dual-string producer in 2014. However, the well showed a 20%-water cut, presumably from the aquifer. The principal challenge was to evaluate the production profile in the short string and find the true source of water. This would require a diagnostic platform with a depth of investigation that extended beyond the tubing. Well sketch shows a range of typical flow scenarios that Dual String Flow can locate and quantify. Solution The operator selected TGT’s Dual String Flow product for evaluating the short-string production profile in the well. Delivered by the True Flow diagnostic system, using the Chorus acoustic platform and Cascade thermal platform, Dual String Flow could provide the insights needed to manage well system performance more effectively.   Cascade high-precision temperature and Chorus spectral acoustic surveys were carried out under flowing and static conditions. Both platforms have large radii of investigation and can detect acoustic signals and temperature variations caused by fluid flowing in the reservoir into the wellbore. Chorus can record acoustic signals through multiple pipe barriers and up to 3 m into the reservoir.   The active production zones and thicknesses identified using Chorus were used as input for Cascade’s temperature modelling and to produce quantitative reservoir production profiles. The temperature modelling also required production history data, the thermophysical properties of the reservoir and the surrounding rocks, the geothermal profile, the hydrodynamic reservoir parameters and the well trajectory including completion components. Behind-casing crossflow from upper unperforated units Result The Chorus survey and analysis (Chorus panel in Logplot) clearly show two acoustic signals which relate to the reservoir flow: the first across the upper part of perforated unit C (zone 1) and the second from the unperforated units A and B (zone 2). Cascade modelling showed that 35% of the total production was coming from the unperforated units A and B, with the fluid crossflowing behind tubing and casing, entering the wellbore through the perforation in the tubing.   There was no production from the lower part of unit C or in unit D. Cascade temperature modelling indicated that the fluid inflow from the upper part of unit C was redistributed behind the casing and enters the wellbore across the perforated interval, although only the upper interval is actually contributing to production.   Behind-casing communication with off-target formations and the actual distribution of production for the target reservoir zones were identified and quantified. Despite not being able to distinguish between oil and water, the diagnostics could make the correlation with open hole data, thus making it possible to determine that 20% of water was coming from the off-target unit B. The operator was able to use information acquired by the Dual String Flow product to improve the vertical sweep around the surveyed well by selecting the most appropriate workover for the well—water shut-off and acid stimulation.

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    Case studies
    CS013 Reservoir Pressure

    Challenge Multilayer carbonate reservoirs are often characterised by hydrodynamically isolated units that develop different formation pressures during production. These differences can result in wellbore and behind-casing crossflows. Conventional sublayer formation pressure measurements involve using wireline formation testing tool before production begins. Once a well is completed and onstream, it is difficult to determine the sublayer formation pressure.   An infill well recompleted as a deviated dual-string oil producer was producing from two strings, Unit A into the short string and Unit C into the long string, the well had an initial formation pressure of 4,200 psi. The aim of the diagnostics survey was to determine the current formation pressure in Unit C and to compare the results with wireline formation testing data which indicated that the formation pressure in Unit C was 800 psi below the initial reservoir pressure value. Well sketch shows a range of pressures exhibited at different formation layers that Reservoir Pressure can evaluate. Solution The operator selected TGT’s Reservoir Pressure product to determine the formation pressure profile. Vital information about the reservoir parameters behind the casing was delivered by the True Flow diagnostic system with Chorus technology.   The Chorus platform used a triple flow rate programme and method. The amplitude of the acoustic signal associated with the flow of formation fluids in the reservoir depends on the pressure drawdown, so contains information about formation pressure.   Recording acoustic signals at three different flow rates and then filtering out non-formation acoustic signals made it possible to estimate the formation pressure in each layer using Cascade’s (digital workspace) numerical simulations.   The intervention was conducted a year after the well had been recompleted as a dual-string producer. Pressure buildup data was used to determine the stabilisation times before each logging run. This showed that infinite-acting radial flow developed in approx. 8 hrs and that the boundary was not reached during the diagnostic programme period. The acoustic spectra in Unit A and B are recorded at three different rates varied only in the long string. Current formation pressure value (Pe ) in Unit C was defined within the Reservoir Pressure product; the pressure value calculated backward to seven months, to the time when wireline formation testing data (points A and B) were acquired, is depicted by Pi*. Result The diagnostic programme was performed at three different operating regimes, with only the flow rate changing in the long string. Chorus diagnostics showed two major flowing zones: one within the upper perforations of Unit A and the other in Unit C (See logplot). The acoustic signal in Unit A was constant because the flow rate varied only in the long string. That proved that there is no communication between units A and C.   Cascade’s numerical modelling was able to match the recorded wellbore pressure and acoustic signal amplitude (or power) for three flow rates. These were found to match at each rate. The current formation pressure (Pe ) for Unit C was determined to be approximately 40 psi lower than the wireline formation testing data depicted by points A and B (Fig 1). Pressure drops over time, so for a fair comparison between current formation pressures and the original wireline formation data (points A and B), adjustment calculations were needed for verification. Both values proved to be in agreement.