Day 3 Thu, March 24, 2022最新文献

{"title":"The Future of Zero Continuous Flare Operation at Greater Bongkot North Field","authors":"Rattachai Nunthaworrarat, Suchart Srivaranon","doi":"10.4043/31565-ms","DOIUrl":"https://doi.org/10.4043/31565-ms","url":null,"abstract":"\u0000 The Greater Bongkot North (GBN)'s condensate stabilization system initially utilizes multi-stage flashing concept through the multi-stage separators. Most of the flashing gas at the last stage separator could not be recovered as being operated at very low pressure (0.05 barg) resulting in the continuous flaring through Low Pressure (LP) Flare Header at the Production Platform of the GBN since 1st operation day. Recovery of the unrecoverable low-pressure gas has been unsolved since then.\u0000 Regarding lower gas nomination forecasted and exported condensate rate in low condensate production mode, LP flare rate is being simulated at 1-3 MMSCFD whilst the existing condensate and gas recovery system shows the available capacity left over even the field potential is maintained. This information energized the opportunity of Recovery Scheme by boosting the pressure of LP Flare Gas and feeding the recovered gas to the existing FGRU compressor within the minimal modification scope. Entire feasible recovery options had been technically examined including essential requirements of modification to evaluate the Pros and Cons on each development scenarios.\u0000 Key engineering challenge on recovery of the low-pressure heavy flare gas is the closed recirculation of recovered hydrocarbon which wastefully occupies the system capacity. Selection on the returning point of the recovered gas is crucial to minimize the recirculation while increasing production yield. The selected option provides less modification works whereas the entire recovered gas feeding back to the existing FGRU compressor is feasible while the existing facilities at its maximum capacity are utilized and new equipment installation requires only one (Wet Screw) compressor and one liquid recovery (Vertical in-line centrifugal) pump. Each equipment was technically selected through evaluated technical specifications and limitation of installation spaces. Furthermore, the installation scenarios on the aging production platform are key challenge as deck extension, which new equipment are installed, is heavy-lifted, and installed on the existing lower deck of Production Platform using the available margin of platform load on the existing piles. Cost estimation is conducted together with economic evaluation for investment decision. The project is budgetary approved providing an attractive positive NPV. The economic evaluation results in positive NPV mainly due to the condensate gain from the flare gas recovery insisting that greenhouse gas reduction project could be performed in the techno-economical way.\u0000 The implementation of GBN New LP Flare Recovery scheme will soonest be getting started by FEED and Construction phases accordingly to shape up essential details of required engineering aspects to make the start-up of this project meets the timeline supporting Sustainable Development framework (Green-house gas reduction) as PTTEP strategic directions.","PeriodicalId":11011,"journal":{"name":"Day 3 Thu, March 24, 2022","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89744548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Permeability Evolution Model of Double-Porosity Media with Consideration of Temperature and Pressure Variations","authors":"Yi Zhang, Gao Li, Guangchun Leng, Keda Wang, Rui Wang, P. Li","doi":"10.4043/31646-ms","DOIUrl":"https://doi.org/10.4043/31646-ms","url":null,"abstract":"\u0000 Reservoir heat treatment (RHT) can improve rock seepage capacity. Recently, it has been considered as a potential technology to enhance unconventional oil and gas recovery. This work presents a permeability evolution model to describe the thermal cracking effects of double-porosity media under temperature change and certain formation pressure. Moreover, to verify the accuracy of the model, a typical double-porosity media (tight sandstone) is selected as the sample, and the permeability of the sample is tested using a simulated formation heating device. Firstly, according to the observation results under SEM, 400°C is regarded as the transition temperature of porous and fractured media. The two-parameter exponential function and the improved \"cubic law\" are used to characterize the permeability of the pore part and the fracture part respectively. Secondly, rock is comprised of matrix grains and pore space. In the model hypothesis, the volume of the matrix grains is just a function of temperature, and the pore space is compressed or released under the action of effective stress, considering the difference of deformation between the matrix grains and the pore space, the Hooke's law based on engineering strain and natural strain is adopted for them respectively. Thirdly, the influence of temperature on crack spacing and opening is analyzed based on the energy principle and Weibull distribution. Finally, a permeability evolution model is established for the whole process of thermal expansion and cracking. The model describes two phases. In the first phase, the matrix grains expand under confining pressure, and at the same time accumulate thermal stress. In the second phase, after the thermal stress overcomes the confining pressure, the porosity recovers and cracks are gradually damaged and formed. The interaction between thermal stress and confining pressure is controlled by introducing a modulation factor. Due to the difference of component properties, the rock has obvious non-uniform thermal fracture phenomenon. Therefore, in this model, three parameters are introduced to ensure the robustness of the model: the contribution of deformation behavior of the matrix grains and pore space to crack opening, the influence of effective stress on crack opening, and the crack proportion of effective seepage. The results indicate that the model can describe the permeability evolution behavior of double-porosity media under certain confining pressure and temperature changes, it provides theoretical guidance for RHT to enhance oil and gas recovery.","PeriodicalId":11011,"journal":{"name":"Day 3 Thu, March 24, 2022","volume":"41 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91441712","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biggest Wells Plug and Abandonment Campaign – Effective Management & Best Practices Implementation","authors":"Azwan Azim Azihar, Maziah Abu Mukhtar, Shahril Yang, M. Z. A Razak, A. Z. A Rajab, M. A. Tumiran","doi":"10.4043/31403-ms","DOIUrl":"https://doi.org/10.4043/31403-ms","url":null,"abstract":"\u0000 This paper covers the strategy that led to successful execution of Plug and Abandonment (P&A) campaign. This paper also shares the best practices implementation, and challenges in completion of the biggest plug and abandonment campaign at Alpha Platform in Peninsular Malaysia. Among the challenges are aging wells with numerous integrity issues, well sequence selection and prioritization, monsoon season, stakeholder management as well as piloting new technology applications.\u0000 In the last 5 years, there are over 50 wells have been successfully abandoned in Malaysia water. The generic abandonment project management framework consists of Initiation Stage, Concept Selection, Scope Definition, Execution, and Post Execution; Close Out. The scope for this paper will detail out the levels for abandonment planning. Screening and clustering, fit-for-purpose strategy, novel technology, innovative contracting strategy are among the pillars in abandonment planning and execution. Effective tools and matrix have been introduced to evaluate the wells candidates. Execution phase is narrowed down to several approaches and best practices that have been implemented to successfully complete all wells at Alpha Platform. The approaches have been customized to safely abandon wells with sustained annulus pressure (SAP) in compliance with the country's regulations. In-depth well study and aggressively piloting new technology are among the keys to tackle numerous well integrity issue in 40 years old wells e.g shallow gas, casing leak, wellhead, and Christmas tree leak. Vigilant logistic management and integrated contract approach also play important roles in reducing the risk and liability to the operator and at the same time developing local players’ capability.\u0000 The strategy and best practices in completing plug and abandonment of Alpha Platform should be replicated by P&A industry to manage the similar issue in other projects. Integrated and fit-for-purpose abandonment approach act as the foundation to model invaluable high-quality planning, forecasting and Value Creation Plan for P&A project portfolio. This paper will be useful in P&A industry where a lot of lessons learned to be shared in the biggest campaign in Malaysia.","PeriodicalId":11011,"journal":{"name":"Day 3 Thu, March 24, 2022","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73654072","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Digital Transformation for the Gulf of Thailand's Assets Condensate Stabilizer Real-Time Optimization","authors":"N. Atibodhi, Supha-Kitti Dhadachaipathomphong, F. Nazir, Nathachok Namwong","doi":"10.4043/31363-ms","DOIUrl":"https://doi.org/10.4043/31363-ms","url":null,"abstract":"\u0000 PTTEP's natural gas fields in Gulf of Thailand, has encountered losses in Condensate yield due to suboptimal operating conditions as variation in feed compositions occurs when production line up changes. As a result of this suboptimal operation, some light Condensate is lost into gas phase resulting in lower overall profitability.\u0000 As part of company's Digital Transformation initiatives, a Condensate Stabilizer Optimization (CSO) solution has been implemented to minimize or eliminate these losses. The objective of CSO is to provide real-time recommended operating conditions to maximize condensate production while maintaining sale condensate specification using optimization technology that considers all relevant condensate stabilization process parameters.\u0000 The CSO solution leverages Multivariable Predictive Control or Model Predictive Control (MPC) technology and communicates the obtained results to offshore teams via an online web user interface.\u0000 Besides the dynamic models and MPC technology, the solution also includes an important component of the CSO solution which is the web based online dashboards as they are the key to communicate between the solution and the users. The dashboards include the following key features:\u0000 – Key operating parameters of Condensate Stabilizer Units including Controlled, Manipulated, and Disturbance Variables – Recommended optimal values of Manipulated Variables to achieve maximum condensate production – Difference between actual vs predicted RVP. This is to visualize current model accuracy – Captured Benefit\u0000 As of December 2021, the CSO solution has been fully utilized for 5 months, i.e. Go-Live since August 2021. During this period, it has successfully delivered not only safe operating window but also benefits which adds up to 1.49 MUSD/year. As the benefits of the solution have been proven, a plan to proceed with Phase 2 of this project, in which the CSO solution will be integrated with the Distributed Control System (DCS) allowing MPC Controller to automatically adjust process parameters to achieve the most optimal conditions, has been set.\u0000 Apart from process optimization, the CSO solution can be used to evaluate operating scenarios based on given simulated process parameters, thus becoming a true \"Digital Twin\" of the Condensate Stabilizer that can replicate its operation at different operating conditions.","PeriodicalId":11011,"journal":{"name":"Day 3 Thu, March 24, 2022","volume":"108 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79209597","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparative Review Study on Different Carbon Capture Methods and Applications in Steelmaking Plant from Economical Point of View","authors":"Thinesh Shakkti Arul Rajoo, K. Elraies, U. Z. Husna, Juhairi Aris Muhamad Shuhili, Mohd Afandi Abu Bakar, Hazliza Haron, Ismail Mohd Saaid, J. Lee, M. N. Mohamad Ibrahim, S. B. Gogoi, A. Saeedi","doi":"10.4043/31540-ms","DOIUrl":"https://doi.org/10.4043/31540-ms","url":null,"abstract":"\u0000 One of the emerging areas in combatting environmental issue like global warming is carbon capture and storage (CCS) entices a solution by not limiting output of any operation. Carbon capture storage refers to the process of capturing or gathering carbon dioxide released into the atmosphere from various activities and injecting the captured gas underground (aquifer). CCS can be divided into 3 main stages namely capturing, transportation and storage. The carbon dioxide will be captured from a source, being transported and sequestrated underground. In this paper, the main area discussed is the capturing process and application in steelmaking industry from economical point of view. Carbon capture is an expensive process which creates an indecisiveness among different parties to actually put the process in practice. However, this expensive process is not properly quantified which is the main motivation of this study to contribute to the cost quantification of carbon capture. Carbon capture is mainly divided to several methods namely membrane separation, oxyfuel combustion, absorption, adsorption, chemical looping combustion, calcium looping and cryogenic method. Despite of having many capturing methods available, there was no vivid or clear application at a large commercial or industrial scale of several methods which rendered them mooted for comparison's sake. Technologies that have gone beyond technological readiness level (TRL) 4 shall be considered since the relevancy of the comparison can benefit parties planning to spearhead or undertake CCS.","PeriodicalId":11011,"journal":{"name":"Day 3 Thu, March 24, 2022","volume":"101 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80873163","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hybrid Pipeline Fit for Purpose for Multiphase Gas and Condensate Transportation","authors":"Nur Izyan Mukhtar, M. H. A Razak, Z. Jamil","doi":"10.4043/31453-ms","DOIUrl":"https://doi.org/10.4043/31453-ms","url":null,"abstract":"\u0000 Corrosion and materials degradation factors during normal and abnormal operating conditions are among the essential criterion in evaluating materials suitability for an offshore pipeline transporting treated gas and condensate with contaminants i.e. CO2, Materials resistant to wet H2S damage in accordance with ISO 15156 requirements and mercury. A thorough study was conducted to ascertain the pipeline section that will be exposed to sour service conditions due to substantial Materials resistant to wet H2S damage in accordance with ISO 15156 requirements level along the pipeline during certain transient scenarios. The study was conducted in view of fit-for-purpose solution and CAPEX optimization initiatives for the project. During certain transient scenarios, there is potential exposure to substantial H2S level under wet conditions for a certain pipeline length which increases materials susceptibility to wet H2S damage such as Hydrogen Induced Cracking (HIC)/Stepwise Cracking (SWC) and Sulfide Stress Cracking (SSC). Flow assurance modeling with compositional tracking module was used to determine the level of H2S along the pipeline where few potential scenarios leading to sour conditions were considered. Risk assessments were also conducted to ascertain the impact and mitigations for the scenarios. Based on studies, exposure to sour service conditions is expected at a partial length of the pipeline as the H2S level exceeds the sour service limit during specific transient scenarios. Specific mitigation measures involving chemical injection, process control and safeguarding and operating procedures were outlined. The study successfully demonstrated an optimized materials selection approach for the pipeline.","PeriodicalId":11011,"journal":{"name":"Day 3 Thu, March 24, 2022","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86986120","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Oilfield Microbiology: Case Study of Molecular Techniques for Determining the Risk of Microbiologically Influenced Corrosion MIC","authors":"Douglas Grant Bennet","doi":"10.4043/31498-ms","DOIUrl":"https://doi.org/10.4043/31498-ms","url":null,"abstract":"\u0000 The objective of this paper is to explain the beneficial information obtained during a microbiological study of an oilfield survey, where molecular microbiology techniques where utilised. The inclusion of these techniques highlighted information that would have otherwise been missed and/or misinterpreted.\u0000 The molecular microbiology techniques deployed during this survey included Quantitative Polymerase Chain Reaction (qPCR) and Next Generation Sequencing (NGS).\u0000 The aim of PCR technology is to specifically increase a target (gene) from an undetectable amount of starting material. The first step is extraction of DNA from the sample, which will subsequently be subjected to the qPCR technology. During qPCR gene copies are made during thermocycling and a fluorescent marker accumulates, which can be used to quantify the target gene.\u0000 Similar to the PCR technology, DNA is extracted from the sample and the DNA is amplified. In NGS, this is then sorted into a library of small DNA segments before they are amplified. During the sequencing step each DNA fragment amplified is sequentially identified from light signals emitted by comparing with a DNA library.\u0000 The results obtained indicated crucial additional information that was not detected by traditional methods. In addition to much higher, truer quantification of known populations of Total Prokaryotes and Sulphate Reducing Prokaryotes, identification of other groups of DNA was possible through the NGS technique analysis. The results provided valuable information, which has subsequently been used to apply successful, targeted mitigation strategies to reduce the risk of MIC to assets.","PeriodicalId":11011,"journal":{"name":"Day 3 Thu, March 24, 2022","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82931401","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Corrosion Management of Wet Gas Sour Gas Carbon Steel Pipeline with Corrosion Inhibitor and Mono-Ethylene-Glycol in NACE Region 3","authors":"Chun Ho Leow, Hock Guan Ong, Rachel Lee, C. A. Khoo","doi":"10.4043/31512-ms","DOIUrl":"https://doi.org/10.4043/31512-ms","url":null,"abstract":"\u0000 This paper will present corrosion management of a wet sour gas carbon steel export pipeline using continuous and batch corrosion inhibitors with mono-ethlene-glycol (MEG) as hydrate mitigation strategy in NACE MR 0175/ ISO 15156 region 3 (severe sour). The wet sour gas carbon steel export pipeline corrosion management via continuous CI and batch inhibitors with closed loop MEG regeneration system is rare worldwide. This is especially challenging when the case study may potentially be the longest wet sour gas, large diameter carbon steel pipeline (approximately 207km × 32 inch) in the world thus far. Pipeline corrosion management and hydrate management aspects when being reviewed holistically, it could provide significant cost savings yet safeguarding the overall technical integrity of the pipeline. The overall corrosion management leverages on Shell's many years of JIP and operating experience in sour service including the pipeline material specification, corrosion management, inspection, and maintenance philosophy. Reliable correlation between reservoir properties and uncertainties severe sour service, flow assurance, chemical behavirous, operating experiences etc were considered to best represent the operating envelope for this wet sour gas carbon steel pipeline. This includes the testing and selection of continuous CI and batch inhibitor, corrosion monitoring, operational pigging, maintenance, and inspection requirements throughout the field life.","PeriodicalId":11011,"journal":{"name":"Day 3 Thu, March 24, 2022","volume":"48 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83386677","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Application of Conformance Control in Stand-Alone Screen SAS Completed Horizontal Wells-A Case Study of Bohai Bay","authors":"Xu Zheng, Y. Lei, Bailin Pei, Wei Zhao","doi":"10.4043/31611-ms","DOIUrl":"https://doi.org/10.4043/31611-ms","url":null,"abstract":"\u0000 \u0000 \u0000 There is high demand for water shutoff in quite a few SAS completed horizontal wells in the Bohai Bay, China. The popular swellable packer in combination with the ICD screen method cannot be adopted because segmentation cannot be achieved in the annulus between the SAS and the borehole wall by the swellable packers for the SAS is unable to be tripped out. A conformance control method is introduced and a case study is provided.\u0000 \u0000 \u0000 \u0000 When the SAS string is not tripped out, first the path for the particles to flow through is established by perforation. Then, a string of ICD screen with smaller diameter is run in place, followed by the pumping of the continuous pack-off particles into the annulus (the inner annulus) between the ICD screen and the SAS. Meanwhile, the particles being carried by the fluids also pack the annulus (the outer annulus) between the SAS and the borehole wall through the penetrations on the SAS. Thus, the function of axial channeling prevention is realized by the rings of particles.\u0000 \u0000 \u0000 \u0000 The well in the case study is an old well that suffered from high water cut, sand production and mud clogging simultaneously. For this operation, the filling rate of the particles was 104.2%, indicating the particles were tightly packed in the inner and outer annuluses and segmentation in the production interval was realized. After commissioning, the water rate dropped from the original 638m3/d to 85m3/d. The oil rate resumed to the level before the well was shut in and later slowly increased to 40.3m3/d. Water shutoff and oil enhancement was realized and neither sand production nor mud clogging occurred. Three functions are realized via the adoption of this method. Firstly, water shutoff and oil enhancement are realized via conformance control; secondly, both rings of particles together with the filtering layers in jacket provide better sand control; thirdly, the rings formed by the tightly packed particles are capable of preventing mud clogging.\u0000 \u0000 \u0000 \u0000 In this paper, perforation is innovatively proposed to establish the path for the particles to flow through so that both annuluses are tightly filled by particles, together with the ICD screens, conformance control is realized along the entire production interval and the target of water shutoff and oil enhancement is achieved. Accordingly, high CAPEX for sidetracking is avoided and the single well ROI is improved.\u0000","PeriodicalId":11011,"journal":{"name":"Day 3 Thu, March 24, 2022","volume":"23 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89439930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Automatic Fault Segmentation Using Wavelet Convolutional Neural Networks","authors":"Xu Zhou, Qishuai Yin, Bin Wang","doi":"10.4043/31529-ms","DOIUrl":"https://doi.org/10.4043/31529-ms","url":null,"abstract":"\u0000 This study presents a novel neural network model to explore its application in automatically interpreting subsurface faults from seismic images. A Wavelet Convolutional Neural Network (CNN) model that incorporates discrete wavelet decomposition is presented, and its capability in segmenting subsurface faults is analyzed.\u0000 In this study, different neural network models are developed to compare their performance in segmenting subsurface faults. Sliced 2D seismic images are used as the input of the models. Pre-interpreted images with fault locations are used as the output of the models. Different CNN models are created using different pooling methods, including a traditional U-Net model with average pooling method, and an advanced Wavelet CNN model using wavelet pooling method. The results show that the Wavelet CNN model, which incorporates discrete wavelet transformation as the pooling layer, has the best performance comparing to traditional models in segmenting subsurface faults from input seismic images. It is more effective in saving edge features during pooling operations and outperforms the traditional U-Net model in segmenting subsurface faults from seismic images.","PeriodicalId":11011,"journal":{"name":"Day 3 Thu, March 24, 2022","volume":"11 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90716039","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}