Pipe Size Research Articles

Analysis on the change characteristics of waveform during the transmission of continuous wave mud pulse signal

Continuous wave mud pulse transmission is the most widely used information transmission technology in measurement while drilling (MWD). The increase in transmission distance will cause the signal attenuation and deformation during transmission, the affecting exploration efficiency. The waveform change law of continuous mud pulse wave in the process of downhole transmission, this paper establishes a mathematical analysis model, focuses on the modulation form of continuous wave signal, physical mud characteristics, and drill pipe characteristics, and discusses the transmission rules of various characteristics on continuous pressure wave. A simulation system of drill pipe transmission pressure wave is constructed. The transmission characteristics of continuous wave signals under different modulation forms are discussed. The positive correlation between the amplitude attenuation and waveform distortion of pulse signals caused by increased gas holdup in the mud under bubbly flow patterns is analyzed. The numerical calculation and simulation analysis results show that the viscosity frequency characteristic of mud is the main factor affecting the attenuation of continuous wave signal. The surface roughness, size and other physical characteristics of drill pipe can affect the transmission speed and attenuation of signals in long-distance transmission. The signal is prone to distortion at the position of modulation phase change.

Characteristics and mechanism of the particle migration subject to the shear flow of concrete flow under pressure

The concrete flow under pressure highly depends on the formation of a lubrication layer between the concrete mass and the pipe wall. Though it is widely believed that particle migration under shear flow influences the formation of this layer, the exact mechanism remains unclear. Therefore, a fully coupled computational fluid dynamic - discrete element method (CFD-DEM) model is developed to investigate the dynamic behaviour of the aggregates within the pipe flow and validated via computed tomography (CT) study and aggregate phase segmentation. The characteristics and influencing factors of the particle migration process is examined by the validated model. The sub-spheres method is employed to accurately model the aggregate shapes in the model. It reveals that the uneven distribution of particle collision frequency contributes to radial particle migration and the subsequent formation of the lubrication layer. The extent of particle migration is found to depend on the pipe size, but independent on the flow rate. The methodology and findings of this paper will also be useful for three dimensional (3D) printing concrete.

Boil-off gas precooling process for subsea low temperature LNG pipelines

Moving liquefied natural gas (LNG) ports offshore and transporting LNG to the coast through submarine pipelines can address the required water depth for LNG tankers and prevent potential safety hazards at ports in crowded waterways. At ultra-low LNG temperatures (−160 °C), pipelines should be precooled by LNG boil-off gas (−120 °C) before normal operation to avoid instantaneous LNG gasification and sharp pipe contraction. In the present study, a transient mathematical model was developed for the precooling process in a subsea multilayered LNG pipeline. Heat conductivity varied with temperature, and the governing equations were solved using the finite difference method. Additionally, the effects of pipe size, insulation layer thickness, and insulation material were investigated. The precooling time decreased significantly with increasing pipe size, and a pipe diameter in the range of 30” to 40” was suitable. In terms of economy and practical applications, the thickness of the insulation layer was suggested to be 30–60 mm. Moreover, compared with glass foam insulating material, rigid polyurethane foam exhibited better thermal performance during the precooling process. These results can assist in determining a safe precooling process for subsea LNG pipelines, providing a suitable green alternative to fossil fuels.

Site suitability analysis of water tank in Athivilai village of India using an analytical hierarchy process and a geographical information system

Abstract In uneven terrain regions, the water tank location plays a significant role in pressure distribution and economical pipe sizes in the water distribution system. This study aimed to determine suitable tank locations by the analytical hierarchy process (AHP) and geographical information system (GIS). Factors such as elevation, slope, population, land use land cover, and distance to the road are considered for this analysis. Thematic maps are created in ArcGIS and weights are determined using the AHP method. From the weighted overlay analysis, the result shows that 15.59, 52.36, 31.31, and 0.63% of the areas are suitable, moderately suitable, least suitable, and unsuitable, respectively. Since the area has an elevation range of 27–87 m, it is divided into three zones. An unsuitable location falls only under one zone; therefore, the results are tested in EPANET by locating the tanks in suitable and least suitable locations. Locating the tanks in suitable locations reduces the size of pipes economically and maintains the pressure successfully while locating the tanks in the least suitable locations creates a negative pressure and increases the pipe size. This study helps the designers to obtain an effective design of a water distribution network by evaluating suitable tank locations.

Effect of Sea Current to Composites Cold Water Pipeline of Ocean Thermal Energy Conversion in Indonesia

Ocean thermal energy conversion (OTEC) is a new source of future energy that is clean and environmentally friendly with zero emissions. It is very potential to be developed in Indonesia, which is located at the equator. to meet the electricity needs of the outermost and remote islands that are not currently covered by the main power plants in Indonesia. Indonesia has deep seas around the islands with temperatures of 5°C and surface temperatures above 25-28°C, so a temperature difference of 20°C can be obtained easily for OTEC power plants. Cold water supplied to the OTEC plant with a capacity of 2 MW at sea level requires a pipe with a diameter of 4 m and a length of 500 m. The pipeline must be insulating, not floating, corrosion-resistant, and resistant to current loads. Current is a very serious concern with the potential to cause pipe failure. The pipe material being investigated is a short fiberglass High-density polyethylene composite. In this study, a simulation of the effect of current on the composite pipe was carried out to obtain an overview of the stress that occurs and the proper pipe dimensions used. The highest current speed in Indonesian water is found in the Makassar Strait from July to September at 0.8 m/s at a depth of 100 m. Based on the OTEC Pro Simulation software for a capacity of 2 MW, resulted in the pipe size is 4 m and the pipe length is 500 m which refers to the temperature profile. In the simulation, the calculation of the dynamically moving current becomes the drag force on the pipe, and with the Autodesk inventor, it is known that the deflection in the pipe, and the yield stress cause failure in the pipe. Subsequently, from the deflection and yield stress data, a pipe thickness of 20-30 cm is obtained for the short fiberglass-HDPE composite material which is safe to use as an OTEC cold water pipe with a capacity of 2 MW. Pipes with a thickness smaller than 15 cm are too thin for a diameter of 4 m because the pipe wall has already experienced a deflection in a horizontal position and pipes with a thickness of > 30 cm are known from the simulation that the pipes cannot be connected rigidly and the pipes also experience stress due to current and pipe weight. so that the stress becomes greater in the pipe.

Application of Strength Pareto Evolutionary Algorithm II in Multi-Objective Water Supply Optimization Model Design for Mountainous Complex Terrain

Water distribution networks (WDN) model optimization is an important part of smart water systems to achieve optimal strategies. WDN optimization focuses on the nonlinearity of the discharge head loss equation, the availability of discrete properties of pipe sizes, and the conservation of constraints. Multi-objective evolutionary algorithms (MOEAs) have been proposed and successfully applied in the field of WDN design optimization. Previous studies have focused on comparing the optimization effects of algorithms in water distribution networks, ignoring the problems of unbalanced pressure distribution and water hammer at the nodes of the pipe network caused by the complex terrain in mountainous areas. In this paper, a multi-objective water supply optimization model that integrated cost, reliability, and water quality was established for a mountainous WDN in real engineering. The method of traversing the nodes to solve the water age was introduced to find a more scientific and practical water age solution model, with setting the weight function to evaluate the water age of the water supply model comprehensively. Strength Pareto Evolutionary Algorithm II (SPEA-II) and Non-dominated Sorting Genetic Algorithm II (NSGA-II) were adopted to optimize the WDN design model in the mountainous complex terrain. The significance levels of the number of Pareto solutions (NOPS) and running time are 0.029 and 0.001, respectively, indicating that the two algorithms have significant differences. Compared to NSGA-II, SPEA-II has a better convergence rate and running time in multi-objective water supply optimization design. The solution set distribution of SPEA-II is more concentrated than that of NSGA-II, also the numerical value is better. The number of SPEA-II optimization schemes is larger and the scheme is more effective. Among them, the Pareto solution set of SPEA-II can obtain more desirable optimization results on cost, reliability index (RI) and water age. In summary, the study provides valuable information for decision makers in WDN with complex terrain.

Hydrological Potential Mapping to Generate Micro-Hydro Power in Code River

Fossil fuel energy utilization in Indonesia is consider high consisting of 65% coal sources and 20% fuel, while only 15% are generate from new and renewable energy sources. This number is critical due to the commitment to reduce greenhouse gases by 29% or 41% as declared Glasgow in 2021. Alternatives source of energy could be obtained from solar, wind, and water. The energy generate from those sources are consider intermittent, however, water utilization can be optimized by construct several weirs (small-scale reservoirs) to accumulate the rain water as a kinetic energy source to generate electricity. Only some part of the world, especially tropical Indonesia archipelago, has enough rain to generate energy. This research intends to measure the potency of Code River, representing small river in generating micro-hydro power. The Code River is representing a small river on the island of Java as part of the archipelago in Indonesia which has the characteristics of a river, a small water catchment area, and has high discharge input from rainfall because it is in the tropics. The weir is equipped with a penstock pipe, as water intake to the generator. The pipe inner diameter made of high-density polyethylene material can be 200, 300, 400, 500, 700, 800, 1,000 and 1,600 mm. Each pipe size can produce discharges of 0.42, 0.75, 1.62, 2.1, 3.1, 3.5, 6.0 and 24.0 m3/s respectively. The combination of discharge and head height will produce electrical energy (in watts). Based on hydrological modelling consisting of 52 sub-watersheds, the highest electricity production in 2021 is 8,359,218.3 kWh with 800 mm pipe size (3.5 m3/sec discharge). The electricity production is based on reliable discharge between 7-96% which is different for each weir location. In conclusion, the electricity supply for the whole year (100%) is inadequate

Classification Size of Underground Object from Ground Penetrating Radar Image using Machine Learning Technique

Ground Penetrating Radar (GPR) is a useful tool in detecting subsurface object or hidden structure defects However, the time-consuming problems and high requirement of professional manpower is required to analyse the GPR data. Machine learning is a tool that endowed with the ability to learn, and it can reduce time taken for the GPR data analysing. To simplify the identification process, a framework is proposed to classify the size of underground metallic pipe by using Histogram of Oriented Gradient (HOG) as a feature extraction algorithm. Two machine learning algorithms namely Support Vector Machines (SVM) and Backpropagation Neural Network were proposed to classify the size of the underground metallic pipe. As a result, the accuracy from the identification is more than 98% for both classifier algorithm.

Analysis of Intermittent Water Distribution Networks Using a Dummy Emitter Device at Each Demand Node

The pipe component of a water distribution network (WDN) is sized based on the fixed design demand considering a peak factor and design period. Simulation of the designed network by a hydraulic solver provides nodal pressure head, head loss, velocity, and flow in each pipe as the prime outputs for the design demand, and it can also be used for extended-period simulation for a particular demand pattern over the supply hours. But, in reality, the behavior of the network does not match with such a result in an intermittent water supply (IWS) system due to the fact that all house service connections behave as an uncontrolled orifice. This has made it a challenging task in understanding and in predicting the behavior of the networks by the municipal engineer once the water starts flowing through the house service connections (HSCs). Though the municipal engineer provides the same pipe size for HSCs to all residences, the flow received by each house could vary based on the available pressure head at the ferrule point of the main water supply pipeline. In reality, maintaining constant pressure at each HSC is not feasible due to frictional head loss. Hence, variation in flow at the HSC is inevitable even with a small water supply system. This paper illustrates how to simulate the behavior of an IWS system based on the number of HSCs provided to each pipeline using a hydraulic solver. Hydraulic simulation of the water distribution network that provides IWS to consumers can be implemented easily by adding a fictitious node by assigning an appropriate emitter coefficient to each demand node through a fictitious link having a check valve in it. The method for finding the appropriate value of the emitter coefficient that helps in simulating HSCs is illustrated in the present work.

Architectural Layout for a Three-Story Dormitory Integrating a Rainwater Harvesting Infrastructure

Residing within a college dormitory entails convenient strolls to classes, easy access to friends just down the corridor, and an immersion in the vibrant campus social milieu. The paper emphasizes the efficacy of the building's structural design in terms of robustness and durability, as well as how the building's aesthetics can hold a competitive edge on a global scale, all while adhering to the safety standards outlined in the building regulations of the Philippines. The design of the dormitory, complete with a rainwater harvesting system, encompasses various stages. These include the collection of data to establish the project's foundation, the creation of an architectural design to conceptualize the project, structural design and analysis to ascertain the building's strength and load-bearing capacity, electrical design to outline lighting and power plans, plumbing design to organize water distribution and determine suitable pipe sizes, a comprehensive work program detailing construction timelines and schedules, and cost estimates to gauge labor, equipment, and material expenses. The project's design, validated through tools like structural design software, adhered to the Philippines' National Building Code and National Structural Code, meeting all requirements without encountering failure or errors. The building's prerequisites underwent meticulous evaluation and verification. Consequently, it is implied that the project holds practical value and is both feasible and worthwhile.

Preliminary engineering design of vacuum thermal shielded Pb-Li loop section for potential nuclear fusion application

Nuclear fusion reactor design and engineering has reached into an advanced phase where the issues pertaining to radioactive tritium handling & accountability, divertor heat load mitigation, reactor size reduction & cost minimization are some of the core problems being addressed globally. Tritium breeding blanket is an important sub system of the reactor, which demands the most efficient design from many perspectives including that of tritium handling and accountability. Especially, Liquid Metal Breeder Blanket (LMBB) design consists of a complex network of heated pipes carrying Lead-Lithium (Pb-Li) Eutectic Alloy liquid metal. There are a few major issues with such pipes, namely (1) Large Space required due to substantial increase in diametric size of such pipes covered with heating elements and silica fibre based thermal insulation, (2) Loss of the bred tritium from liquid metal through permeation across the pipe wall and associated radioactive safety issues, and (3) Tritium retention in silica fibre based insulation resulting in tritium accountability problem and health hazard during maintenance duration. One possible solution to these problems could be putting a vacuum envelope over the loop pipe. The vacuum isolation will take care of thermal insulation for convection loss and at the same time, the pumping port of the envelope will collect all the lost tritium. In order to demonstrate the feasibility of the concept from thermal shielding point of view, we have prepared a conceptual and preliminary engineering design of such a vacuum envelope on a segment of the Pb-Li loop of 1 inch diameter. The loop segment includes a straight part as well as one 180° U bend too. The design is to maintain the envelop temperature less than 50 °C while the loop pipe is maintained at 350 °C. Basic calculation of thermal conductivity of low pressure air (vacuum) is done and compared with that of conventional insulation material silica based fibre felt. The fabrication, integration and maintenance schemes are also discussed in this report.

Nanoparticle Size and Heat Pipe Angle Impact on the Thermal Effectiveness of a Cylindrical Screen Mesh Heat Pipe

This study examines the effects of particle size and heat pipe angle on the thermal effectiveness of a cylindrical screen mesh heat pipe using silver nanoparticles (Ag) as the test substance. The experiment investigates three different particle sizes (30 nm, 50 nm, and 80 nm) and four different heat pipe angles (0°, 45°, 60°, and 90°) on the heat transmission characteristics of the heat pipe. The results show that the thermal conductivity of the heat pipe increased with an increase in heat pipe angle for all particle sizes, with the highest thermal conductivity attained at a 90° heat pipe angle. Furthermore, the thermal resistance of the heat pipe decreased as the particle size decreased for all heat pipe angles. The thermal conductivity measurements of the particle sizes—30, 50, and 80 nm—were 250 W/mK, 200 W/mK, and 150 W/mK, respectively. The heat transfer coefficient values for particle sizes 30 nm, 50 nm, and 80 nm were 5500 W/m2K, 4500 W/m2K, and 3500 W/m2K, respectively. The heat transfer coefficient increased with increased heat pipe angle for all particle sizes, with the highest heat transfer coefficient obtained at a 90° heat pipe angle. The addition of Ag nanoparticles at a volume concentration of 1% reduced the thermal resistance of the heat pipe, resulting in improved heat transfer performance. At a heat load of 150 W, the thermal resistance decreased from 0.016 °C/W without nanoparticles to 0.012 °C/W with 30 nm nanoparticles, 0.013 °C/W with 50 nm nanoparticles, and 0.014 °C/W with 80 nm nanoparticles. This study also found that the heat transfer coefficient increased with increased heat pipe angle for all particle sizes, with the highest heat transfer coefficient obtained at a 90° heat pipe angle.

Influence of diffuser structure on draining and dry process of Tokamak cooling water system

The diffuser used at the pipe size changing is a common part in the Tokamak cooling water system. It is one of the factors affecting the cooling water retention in the drainage and drying process, which will reduce the dryness of the drying system. This paper focuses on the effect of diffuser structure on gas-liquid flow characteristics in drainage drying process. Further, a numerical simulation model is established to analyze the pressure field, velocity field and phase distribution in the diffuser with different expansive angle in detail. According to the research results, the reflux phenomenon in the diffuser increases with the increase of the angle of the diffuser. This work provides a reference for the design and analysis of drying system of fusion reactor in the future.

Study on the influencing factors of thermal performance of radiant heating floor with the intensive solar irradiation

Radiant floor heating systems are widely used in buildings due to their great thermal comfort and energy-saving potential. In a building with many transparent envelopes, radiant floor units in some zones are usually irradiated by solar radiation, leading to overheating near the local floor surface. In order to quickly evaluate the heating performance of the radiant floor with the influence of solar radiation, a simplified model based on the thermal resistance network is established in this paper. Through derivation, the solar radiation effect coefficient (SREC) and the basic surface temperature are proposed, and then the floor surface temperature can be obtained from these two parameters. After experimental validation of this simplified method, the importance analyses of various factors affecting the SREC and the basic surface temperature are carried out, and the influence of each factor is summarized quantitatively. The results show that the pipe spacing has the greatest effect on the SREC, while the supply water temperature has the greatest effect on the basic surface temperature of the radiant floor. Moreover, the absorbed solar radiation intensity corresponding to the floor surface temperature equaling to the supply water temperature and the hot water stopping heating is defined as the critical value. As the temperature difference between the supply water and the indoor environment increases from 17 °C to 37 °C, the critical solar radiation intensity also increases from 180 W/m2 to 445 W/m2. If the absorbed solar radiation intensity is less than this critical value, increasing the pipe spacing, choosing a smaller pipe size, increasing the equivalent thickness and reducing the thermal conductivity of the radiant floor can all reduce the surface temperature of the radiant floor with the influence of solar radiation. The results of this study can put forward corresponding suggestions for the design and operation of the radiant floor to balance the cooperative heating relationship between the solar radiation and the heating system.

Improvement of tool calibration in cold pilligrim rolling mill

In the manufacture of cold rolled tubes, the process performance of the rolling mill and the deformed metal is determined by tool calibration. The method of calibration calculation, the method and equipment of its reproduction significantly affect the deformability and quality of pipes, the cost of rolling tools, productivity, and in general the efficiency of cold (warm) rolling of pipes. Tool calibration is the distribution of individual compressions along the length of the working stroke of the rolls, determined by the shape and size of the grooves and the mandrel. The need to improve the calibration of rolling tools is determined by the ever-increasing requirements for pipe production products. In this article, it is proposed to set the function of relative reductions as a product of elementary functions. In the course of the work, the coefficients of the proposed function were determined from the condition of the minimum load on the gauge at the pre-calibration section to ensure the minimum longitudinal difference in the thickness of the pipes. Calibration and forces during rolling of stainless thin-walled pipes of size 95×2 mm by the improved method have been calculated using MS Excel. The force parameters of rolling, calculated using the improved method, are compared with the forces calculated using other well-known calibration calculation methods. It is shown that the proposed technique provides lower values of force on most of the crimping section, which allows reducing longitudinal variation of pipes and increasing durability of calibers. To assess the accuracy of rolled pipes, the calculation of the elastic deformation of the stand was carried out depending on the force in the pre-calibrating section. The calculated value shows that the proposed improved method of tool calibration allows rolling pipes of increased accuracy. The developed procedure involves the use of size 95×2 mm pipes made of 12X18H10T steel for rolling in order to produce from a two-pass scheme to a single-pass scheme while ensuring the required high cost of pipes.

A Novel Free-Standing Riser Concept for Deepwater Developments

Abstract Free-standing hybrid risers (FSHR) are well established in deepwater field developments in the oil and gas industry. The major advantages foreseen for the FSHR are the possibility of safely anticipating production and requiring significantly reduced payloads at the floating production unit. This work addresses the feasibility of a novel proposed optimized concept, the free-standing integrated riser (FSIR), where the pipeline is integrated into the riser by means of a transition section, which is kept in place by a multiple line mooring system, developed to keep the functionality and integrity of the entire riser along its lifetime. The work provides the findings from numerical analysis simulated in orcaflex, a finite element simulation software dedicated to global analysis of risers, considering the design criteria provided in API 2RD Standard. As part of the FSIR evaluation, screening static analysis was performed to identify the most promising configurations for the multiple line mooring system, followed by a series of dynamic analyses to evaluate the behavior of the riser in extreme conditions. In addition, several investigations were performed to assess the functionality and the robustness of the system, including parametric studies to check for installation and dimensional tolerances, assessment of fatigue damage, and checking the impact of pipe size on the design. The results show that the proposed novel FSIR concept can provide a practical and economical solution for deepwater projects.

Magnetic Permeability Perturbation Testing for Internal Axial Cracks in Small-Diameter Thick-Walled Steel Pipes

Special geometric features and complex working environments render the internal defects of small-diameter thick-walled steel pipes “easy to expand, difficult to detect”. In this paper, a magnetic permeability perturbation testing (MPPT) method is proposed to assess the internal axial cracks of small-diameter thick-walled steel pipes. The mechanism of the MPPT method and its corresponding probe and magnetizer are introduced, and its feasibility is verified through a series of simulations and experiments. Experiments conducted using different sizes of small-diameter thick-walled pipes show that this method offers good performance with respect to the detection of internal axial cracks. Additionally, both diameter and wall thickness significantly affect the MPPT signal. To a certain extent, a greater wall thickness or a smaller diameter brings about a weaker signal. This method does not benefit from the lift-off effect, nor is it limited by the skin effect, which has great practical value as a supplement to the evaluation of thick-walled steel pipes.

Rancang Bangun Oven Pengering Lidi Sawit Dengan Sistem Double Blower

The process of drying palm sticks carried out by umkm in Kampar Regency, precisely in the Terentang mine, still needs to be solved in the drying process, which only has sunlight and changes in hot weather in the quality drying palm sticks. Therefore, an oven is designed to improve the quality of drying palm sticks using a double blower system and a branched pipe. This oven is manufactured for an open iron drying room measuring 3x3 cm with volume dimensions of 100 cm3, then for the heating room using a hollow iron measuring 3x3 cm with dimensions of length 50 cm, width 50 cm, and height 50 cm. Heat flow pipe using a pipe of 2 inches along the 800 mm and connected using a branched pipe 50 mm long with a pipe size of 1 inch as much as 4 sections that lead to each rack in the oven chamber. Based on the calculation of the design capacity of this palm stick drying oven, the total capacity of this oven is 28.8 kg on each shelf. However, from experiments that have been carried out with the drying process of palm sticks at full capacity, it is measuring the water content of each shelf is uneven. The bars on each frame and the rods in the middle pile do not experience differences in air content because the hot air obtained is less when compared to the top bundle of posts and the bars at the bottom.

Modeling pipe-soil interaction under vertical downward relative offset using B-spline material point method

To analyze the pipeline response under permanent ground deformation, the evolution of resistance acting on the pipe during the vertical downward offset is an essential ingredient. However, the efficient simulation of pipe penetration into soil is challenging for the conventional finite element (FE) method due to the large deformation of the surrounding soils. In this study, the B-spline material point method (MPM) is employed to investigate the pipe-soil interaction during the downward movement of rigid pipes buried in medium and dense sand. To describe the density- and stress-dependent behaviors of sand, the J2-deformation type model with state-dependent dilatancy is adopted. The effectiveness of the model is demonstrated by element tests and biaxial compression tests. Afterwards, the pipe penetration process is simulated, and the numerical outcomes are compared with the physical model tests. The effects of pipe size and burial depth are investigated with an emphasis on the mobilization of the soil resistance and the failure mechanisms. The simulation results indicate that the bearing capacity formulas given in the guidelines can provide essentially reasonable estimates for the ultimate force acting on buried pipes, and the recommended value of yield displacement may be underestimated to a certain extent.

Multistage Acid Stimulation Uses Straddle Packer, Real-Time Telemetry

_ This article, written by JPT Technology Editor Chris Carpenter, contains highlights of paper SPE 204830, “Multistage Acid Stimulation for ICD Screens Completion Using Straddle Packer and Real-Time Telemetry Coiled Tubing,” by Qadir Looni, SPE, Malik M. Humood, SPE, and Ahmed A. Mousa, Saudi Aramco, et al. The paper has not been peer reviewed. _ The authors describe in the complete paper how the combination of a straddle-packer system and a downhole real-time telemetry system was used to acid-stimulate up to 38 stages successfully and monitor the behavior of the straddle packer continuously during diversion of multistage acid treatment of screens while maintaining packer-seal integrity and downhole pressure. In addition, the study also provides lessons learned from implementation of multistage packers with real-time telemetry for successful diversion of acid treatment uniformly across screens in a horizontal well. Introduction Use of inflow control devices (ICDs) is a preferred completion technique in producing multilayer reservoirs from a single well while allowing the optimal production profile along the completed intervals by managing the drawdown from the reservoir to the wellbore. This study focuses on controlled acid treatment of a high number of ICDs in a single well. Two options existed for achieving optimal acid placement in the subject well with 38 ICDs during treatment, chemical and mechanical diversion. Mechanical diversion is the preferred option because it ensures the most-accurate fluid diversion during stimulation. Once the methodology was confirmed, the next step was to identify the optimal bottomhole assembly (BHA) with a packer element that could be set and unset 38 times in a single coiled tubing (CT) run. The final step in the feasibility study was to obtain real-time bottomhole data to ensure adherence to operational parameters during the interventions. More specifically, a casing collar locator (CCL) reading for depth accuracy, CT downhole pressure for ensuring the packer-set value, and downhole annular pressure to check pressure differences along the packer elements were needed. This required fiber-optic (FO)-enabled CT to acquire real-time communication with downhole tools. Methodology The challenges associated with treatment of ICD screens using a straddle-packer system to divert the treatment mechanically include successfully locating the ICD and placing it across the straddle-packer system, monitoring the pressures inside and outside the CT to confirm the treatment affecting the targeted ICD, and not involving an already-treated ICD. In addition, when treating more than 38 ICDs in a well, maintaining the integrity of the straddle-packer elements is necessary to reduce treatment time per stage and maximize the number of stages that can be treated in a run. Another challenging aspect of mechanically treating the ICD screen is the CT reach. A common practice to extend CT pipe reach is selection of a larger-diameter pipe, but, considering the weight capabilities of the rig crane, increasing the pipe size proved problematic.