Day 2 Wed, September 06, 2023最新文献

{"title":"Hybrid Optimization Technique Allows Dynamic Completion Design and Control in Advanced Multilateral Wells with Multiple Types of Flow Control Devices","authors":"Jamal Ahdeema, M. H. Sefat, K. Muradov","doi":"10.2118/215507-ms","DOIUrl":"https://doi.org/10.2118/215507-ms","url":null,"abstract":"\u0000 Designing a well completion for multilateral wells with multiple types of flow control devices (FCDs) can be a challenging optimization task due to a large number of correlated control variables and computationally demanding objective functions. Consequently, standard optimization workflows may fail to find the optimal design. The lack of a reliable optimisation workflow has forced the industry to adopt a simplified, snapshot approach to intelligent completion design, ignoring long-term dynamic reservoir performance.\u0000 In this work, a multistage optimization workflow named hybrid optimization (HO), has been developed for effectively optimizing the completion design of multilateral wells that are equipped with multiple types of FCDs. Differential evolution (DE), a metaheuristic optimisation algorithm, is utilized for initial exploration of the search space to identify promising regions, while the generated data are employed to develop a fast surrogate model to mimic the dynamic performance of the computationally expensive reservoir model. Global sensitivity analysis using the Sobol method is then performed with the aid of the developed and tested surrogate model, to divide control parameters into high and low impact groups. The Simultaneous Perturbation Stochastic Approximation (SPSA) algorithm is employed at the final optimisation stage to perform a refined search in the optimal areas previously identified. The proposed framework offers engineers a set of guidelines to adjust the completion design, by modifying the most critical design parameters, in order to maximize production performance while minimizing installation and operational risks.\u0000 The new workflow has been tested on a 3-D, synthetic, representative reservoir model developed by an intelligent dual-lateral well equipped with inflow control devices (ICDs) inside the laterals, and interval control valves (ICVs) at the laterals’ junctions. The developed HO technique showed superior performance as compared to the current, standard optimization options relying on a single algorithm. It allows efficient dynamic optimization and delivers reliable results in a reasonable time, to replace the snap-shot designs which can be sub-optimal due to their dependency on a single timestep.","PeriodicalId":213852,"journal":{"name":"Day 2 Wed, September 06, 2023","volume":"131 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121307783","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":"Cement Integrity Assessment Using a Hydration-Coupled Thermo-Mechanical Model","authors":"A. Moghadam, Matteo Loizzo","doi":"10.2118/215497-ms","DOIUrl":"https://doi.org/10.2118/215497-ms","url":null,"abstract":"\u0000 Portland cement is commonly used in wells to provide zonal isolation in the annulus. A damaged cement sheath can expose the casing to corrosive fluids and open a leakage pathway to shallow freshwater aquifers and atmosphere. The leakage can manifest itself as sustained casing pressure (SCP) or lead to gas accumulation in shallower formations. The impact of pressure and temperature variation on cement stress has been widely studied in the literature. However, the hydration reactions of cement are not usually included in the mechanical models. This leads to incorrect assumptions about the initial state of stress in cement immediately after curing.\u0000 In this work, we have developed a 3D well integrity model that incorporates the cement hydration process. The model is verified using laboratory experiments on cement stress evolution. The model calculates the water consumption during the hydration reactions to predict the pore pressure change in cement. The evolution of cement's mechanical properties with the hydration degree is captured using a homogenization model. A case study is designed to represent a typical low-enthalpy geothermal well in the Netherlands, using well designs and inputs from publicly available data. The cement stresses are tracked over the life of the well, to understand the magnitude of the stress cycles and to assess the potential long-term damage to the cement sheath.\u0000 The results show that the pore pressure drop due to cement hydration causes an increase in shear stress in the cement sheath. The pore pressure drop during hydration can debond the cement from the formation. The level of destressing in cement is a function of cement properties, formation stiffness, and the depth of the top of cement. When placed against softer formations, the stress drop in cement is more muted leading to a better seal. During the temperature cycles, the shear stress in cement changes in a cyclical manner. Depending on the magnitude of the stress cycles, damage can be accumulated in the cement sheath. The stress evolution in cement can also vary depending on the presence of external water (formation permeability).\u0000 The modelling technique presented in this work provides a robust methodology to estimate the magnitude of cyclical stresses in the cement sheath. This is a critical input to design cement recipes that can withstand load cycles throughout the lifetime of the well. The results of this work indicate the need to assess the integrity of cement at various depths and against various formations. It may not be possible to guarantee the seal efficiency against all formations, however risk analysis can be conducted using the presented model to assess the seal integrity of critical locations in the well profile.","PeriodicalId":213852,"journal":{"name":"Day 2 Wed, September 06, 2023","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116175468","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":"Lithium Extraction From North Sea Oilfield Brines Using Ion Exchange Membranes","authors":"Botelho Disu, R. Rafati, Amin Sharifi Haddad, Nabihah Fierus","doi":"10.2118/215585-ms","DOIUrl":"https://doi.org/10.2118/215585-ms","url":null,"abstract":"The annual demand for lithium for low-carbon technologies applications has been trading exponentially forward, 965% more in 2050 than the quantity demanded in 2017. In the current chain of demand, there is a necessity for continuous lithium production from both conventional sources (i.e., salt lakes and rock minerals) as well as the incorporation of novel extraction sites from alternative brine resources such as Oilfield and Geothermal. In the present paper, the lithium potentiality of the North Sea is evaluated with fields in the Central-East and Southern-West reaching the highest regional concentration of 40 ppm. Those include oilfields such as Montrose, Arbroath, Ula, Nelson, Brisling, Gyda, Ekofisk and Bream, as well as gas fields such as the Esmond, Anglia, Lemman, Ann, and Viking, with the possibility of brine enrichment extending itself even to shallow waters fields around the Groningen region. To experimentally evaluate the potential extractability of lithium from those oilfield brine resources in the North Sea, ion-sieve adsorbents (Li1.6Mn1.6O4) were prepared from commercially available LiMnO2 and formed into three different ion-exchange membranes. The foam had the best performance out of those structures, displaying a higher and much stabler powder insertion capacity compared to granular and flat sheet membranes, which registered significant material loss. At an optimum polymeric concentration of 10% and MNO/PVA ratio of about 50%, the foam membrane had the highest theoretical extraction capacity of 9.94 mg/g, followed by granular and flat sheet, with 7.36 and 7.24 mg/g, respectively. Those membranes had good selectivity forward lithium ion in the presence of other competing cations when used on synthetic oilfield brine with concentration mimicking that of Buchan field, being able to efficiently recover 18.4% (foam), 17% (granular), and 14.37% (flat sheet) of lithium. However, the recovery capacity was increased up to 50% when non-formed HMO powder was used, with selectivity in the following decreased order of affinity, Li+ > Mg2+ > Na+ > Ca2+ > K+. The powder recoverability raises the lithium production prospect from North Sea brine to about 26.2 kg per day with an estimated market value of 1834 USD for the produced quantity.","PeriodicalId":213852,"journal":{"name":"Day 2 Wed, September 06, 2023","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127457870","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":"Field Experience Using Flow Positioned Ditch Magnet Systems - Contribution to Efficient Drilling","authors":"G. O. Ånesbug, J. E. Pallin, B. Aase, O. I. Andresen, M. Sandvik, P. Khalili, A. Saasen","doi":"10.2118/215604-ms","DOIUrl":"https://doi.org/10.2118/215604-ms","url":null,"abstract":"The presence of magnetic debris in the drilling fluid has a detrimental effect on the drilling process. The BHA compass becomes shielded and most Logging While Drilling operations are affected. Magnetic particles will be present whenever no efficient method to remove these are used. The following text shows how removal of such contamination contributed to successfully drill 6624m horizontal 8 ½\" section of in one run on with high average ROP on a North Sea field.\u0000 Benchmarking of the flow positioned magnets with simpler systems has shown that it may be several times as effective in removal of magnetic debris than competing systems. Furthermore, this removal significantly eased the directional control during drilling. For the particular well the removal of magnetic debris was very effective. It was stated that due to the improved directional control they did not observe the severe whirl typically expected in long tangent sections. Directional control is known to be affected by the magnetic particle content in the drilling fluid. Neither was there any need for changing any logging tools during drilling. Such changing of logging tools is not uncommon because of agglomeration of metal on the measurement ports. Also, the lifetime of the turbine in the MWD increased partly because of less metallic debris in the drilling fluid. In the article it is summarised the experience of operating the ditch magnets along with an outline of the drilling performance. The amount of removed steel is quantified. The effect on directional drilling is assessed. At the same time, the workload to clean the magnets properly is shown as well as the need for the crew to operate the system properly.","PeriodicalId":213852,"journal":{"name":"Day 2 Wed, September 06, 2023","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121764983","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":"Adopting the Data Mesh – An approach to unlock business value","authors":"D. Ramchandani, D. Mackinnon","doi":"10.2118/215544-ms","DOIUrl":"https://doi.org/10.2118/215544-ms","url":null,"abstract":"\u0000 This paper presents a case study on the adoption of Data Mesh, a novel approach to managing data in organisations, and its impact on unlocking business value. The study explores the implementation of Data Mesh principles, including the establishment of decentralised data ownership and domain-oriented data teams. The results demonstrate the effectiveness of Data Mesh in improving data accessibility, data quality, and accelerating data-driven decision-making processes. This paper provides insights and practical recommendations for organisations looking to adopt Data Mesh to harness the true potential of their data assets.","PeriodicalId":213852,"journal":{"name":"Day 2 Wed, September 06, 2023","volume":"39 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115074638","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":"Multi-Stage Hydraulic Fracturing Using High- Temperature Fracturing Fluids in the Deepest Offshore Well in China- Case Study of Lab Test and Field Execution","authors":"Yi Feng, Ming Zhang, Junbao Li, Bo Zhang, Lipeng Hu, Yisheng Wang, Xuefeng Zhang, Tian Liang, Zichao Wang, Liang Feng, Changhong Wuauthor","doi":"10.2118/215540-ms","DOIUrl":"https://doi.org/10.2118/215540-ms","url":null,"abstract":"\u0000 Bohai Bay is one of the world's largest oil and gas fields, consisting of different reservoirs with multiple lithologies.\u0000 BZ condensate oil and gas reservoir is discovered in recently past years. It is planning to develop this field in future years. This field are fractured buried hill condensate gas reservoir, buried deeply and it is not property researched. Several Wells drilled at early stage of the production schedule is not stable and economic value is not enough, so hydraulic fracturing technology is needed to realize the maximization of the production. Due to the well was deep with extremely high temperature and high pressure, the choice of the method of completion, fracturing process design and the realization of the project are challengeable.\u0000 When the target well depth over 5000m with temperature over 195 °C, we usually use metal crosslinked fluids, particularly using CMHPG and crosslinked with Zirconate crosslinker designed for high temperature. This system delivers a great combination of benefits: availability, low cost, ease to use, high viscosity, and fluid recovery.\u0000 BZ 9 well is the deepest offshore in China by far. We finish the multi-stage hydraulic fracturing using High-temperature fracturing fluids. We conduct DST test, production evaluation, DFIT Test, Hydraulic Fracture for BZ 9 well. Data analysis and caliber the production evaluation is also tried to do. The high temperature fracture fluid stability test, break test, surface tension test, core perm recovery test is shown is this article. At the same time, also show the well fracturing design idea and method of pump schedule, fracturing model result, DFIT and SRT process, understanding of the reservoir, display and analysis of fracturing plot, the full 3D GRID- ORIENTED HYFRAULIC FRACTURE STIMULATOR corrective, the analysis of the pressure plot, flowback and production, and further suggestions are put forward.","PeriodicalId":213852,"journal":{"name":"Day 2 Wed, September 06, 2023","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133764484","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":"Selection of CO2 Mixture Composition for Flow Assurance Analysis","authors":"B. Pierre, D. Wright","doi":"10.2118/215558-ms","DOIUrl":"https://doi.org/10.2118/215558-ms","url":null,"abstract":"\u0000 Transported and geologically stored CO2 contains several impurities that depend on its source and associated capture technology. Impurities in anthropogenic CO2 can have damaging impacts on the different elements of a CCS system, which must be considered when developing a CO2 specification (Table 1). Thus, characterising all the impurities and determining the required purity of the CO2 mixture is critically important for the safe design and operation of CCS transport and storage systems.\u0000 It is important to note that CO2 specifications relate to normal operations. Short-term excursions outside of the recommended maximum concentrations for each impurity may be permissible provided they do not lead to health and safety risks and / or risks to the mechanical integrity of the asset.","PeriodicalId":213852,"journal":{"name":"Day 2 Wed, September 06, 2023","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129157726","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":"Improving EOR Economics by Polymer Technology Development","authors":"S. Toivonen, G. Johnson, S. Hanski, T. Lynch, L. Rosati, E. Pin, N. Lugo","doi":"10.2118/215496-ms","DOIUrl":"https://doi.org/10.2118/215496-ms","url":null,"abstract":"\u0000 Recent advancements in polymer technology have played an important role in enabling polymer flood projects and widening the spectrum of applicable conditions for use. These improvements have generated clear benefits to operators by improving the economic and environmental measures for these projects.\u0000 In the Captain field, located in the UKCS of the North Sea, a liquid, high active, +50% anionic polyacrylamide polymer has been injected since 2017 within the Captain Stage 1 polymerflood development. This large scale offshore polymerflood project has proven the benefit of polymer EOR technology in an offshore setting, with clear production responses across all polymer injection patterns. This paper describes the impact of polymer product development on the overall efficacy of the polymer project at Captain, including savings related to polymer consumption. This progress has a direct effect on overall logistic and supply chain improvements, offshore inventory needs, and results in a reduction of CO2 emissions related to polymer production and transportation.","PeriodicalId":213852,"journal":{"name":"Day 2 Wed, September 06, 2023","volume":"141B 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114360832","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":"Biocatalysis Approach for Affordable and Sustainable Green Hydrogen Production","authors":"Chetan Laddha","doi":"10.2118/215539-ms","DOIUrl":"https://doi.org/10.2118/215539-ms","url":null,"abstract":"\u0000 Green Hydrogen is widely acknowledged as one of the important pillars for decarbonisation of hard-to-abate sectors and to transition the global economy to Net Zero. The current priority in the energy sector is to rapidly establish and scale a green Hydrogen based energy value chain that meets three core objectives: affordability, sustainability and security of supply, also referred to as ‘Energy Trinity’. Green hydrogen is produced from electrolysis of fresh water through technologies such as alkaline electrolyser, PEM (proton exchange membrane), and SOEC (solid oxide electrolyser). The production of green hydrogen from water is an energy intensive process, due to the high thermodynamic stability of water molecules. The cost of producing green hydrogen at scale is large proportional to the cost of renewable electricity. This requires green hydrogen production basins to be located close to regions/ geographies with access to surplus and low-cost renewable electricity, such as Australia, Middle East, Norway, Scotland and Chile.\u0000 The current cost of green hydrogen in the UK has a 5-10 times cost premium as compared to fossil fuels.\u0000 The primary inputs from green hydrogen production through electrolysis technologies are renewable electricity and freshwater. There has been an increasing concern globally on the availability and preservation of water resources. There are publications from water companies in the UK citing that the supply of constant fresh water supply for industrial applications such as green hydrogen production cannot be guaranteed under rapidly changing scenarios of climate change. There is a potential to set up large scale desalination plants to meet the fresh water for hydrogen production, however the large quantities of discharge water with high brine concentration might pose environmental hazards to marine habitat.\u0000 This calls for alternate technologies to be developed which addresses the freshwater dependence for green hydrogen production and the significant green premium on cost structure.\u0000 The paper describes a novel biocatalysis approach for production of green Hydrogen from wastewater, without requiring electricity input.","PeriodicalId":213852,"journal":{"name":"Day 2 Wed, September 06, 2023","volume":"580 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115896900","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":"AI Augmented Engineering Intelligence for Industrial Equipment","authors":"P. Santos, L. Aldren, E. Melvin, J. Lim, G. McMillan, J. Yang, C. Fraser, J. ODonnell","doi":"10.2118/215491-ms","DOIUrl":"https://doi.org/10.2118/215491-ms","url":null,"abstract":"\u0000 This paper presents an Artificial Intelligence (AI) based implementation for anomaly detection in critical industrial equipment at TotalEnergies. The approach was initially inspired by the work of Sipple, J. (2020), on AI anomaly detection in smart buildings. This approach has since then been adapted, applied, and extended to also handle multidimensional time series data effectively, whilst keeping model interpretability by design. The AI models have been successfully deployed in various North Sea assets and have been able to detect anomalous behaviour in the industrial rotating equipment, leading to improved visibility, efficiency, and reliability. The paper also discusses the motivations for the business case and change management processes associated with the implementation of the AI models.","PeriodicalId":213852,"journal":{"name":"Day 2 Wed, September 06, 2023","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123026966","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}