Day 2 Tue, August 17, 2021最新文献

{"title":"A Real Time Fatigue Monitoring Platform for Flexible Risers","authors":"Jiabei Yuan, Yucheng Hou, E. Wilson, Z. Tan","doi":"10.4043/31267-ms","DOIUrl":"https://doi.org/10.4043/31267-ms","url":null,"abstract":"\u0000 Fatigue life of flexible risers is a critical design factor in offshore riser system design. To estimate the fatigue damage, global and local analyses are performed inhouse with inputs from operators. Metocean data, riser properties, vessel or platform RAO data are typical inputs for the fatigue analysis. In addition to the conservatism inherited in the product design methodology and API safety factor 10 for fatigue estimation, the input data may also contain some additional conservatism compared to actual operational conditions as these were estimated/projected from limited time-span of observations or predicted purely from numerical modelling. In combination, these inheriated conservatism permits the feasibility of service life extension of the flexible riser systems.\u0000 Many platforms or vessels already have real time monitoring of motions in multiple degrees of freedom and wave/current data. Furthermore, pipe internal operating conditions like pressure and temperature are usually recorded onboard. Compared to the typical input data/assumptions made in predictive analysis, these records are more precisely and directly related to the actual fatigue damage accumulation. With real time data, a more accurate estimation on fatigue performance of riser can be achieved, which could enable the service life extension without compromising the design safety factors.\u0000 A special software tool has been developed to calculate the real time fatigue damage of flexible tensile wires. The software is based on product design tools which are calibrated and independently validated with over 30 years installed operational experience. Developed in Python, the software utilizes an OrcaFlex API and a local analysis algorithm in the background. The software can be customized towards different platforms and pipe systems, as well as input data types. Depending on clients’ needs, multiple fatigue hot spots like top end fitting, bend stiffener region or touch down zone can be monitored at the same time. Other parameters like riser real time extreme response or statistical results can also be checked in the software.\u0000 This paper summarizes the development of the pipe monitoring system. It is believed that with real time inputs, the software can better assist clients to monitor the pipe fatigue performance and other related riser responses.","PeriodicalId":10936,"journal":{"name":"Day 2 Tue, August 17, 2021","volume":"36 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74383930","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":"Novel Design Optimization for Additive Manufactured Components","authors":"S. Acharya, R. Matroja, Mohammad Elyyan Elyyan, Henri De Charnace, Yi Zhang","doi":"10.4043/30956-ms","DOIUrl":"https://doi.org/10.4043/30956-ms","url":null,"abstract":"\u0000 In the last 10 years, Metal Additive Manufacturing (AM) has matured substantially [1,2]. The evolution of metal powder-bed AM now, facilitates production-quality parts to be manufactured. Additive manufacturing has specially attracted attention for its ability to manufacture parts with complex shapes that are cost-ineffective or impossible to manufacture with traditional technologies. For Oil and Gas industry, this ability to manufacture complex shapes offers unprecedented opportunity to redesign and optimize wide ranging components from cutting heads, heat exchangers [3], pumping and filtration equipment to drill motors, inline static-mixers and flanges. as well as advantages over traditional manufacturing techniques. The present work shows how optimization and simulation tools are valuable in rapid development of more efficient and light-weighted components that take advantage of the 3D printing process.\u0000 Additive Manufacturing, while promising offers its own challenges related to process parameter optimization and part distortions. So, testing new paradigm-shifting design becomes time consuming and expensive trial and error process. Computational methods for optimization and physics simulation reduce the risk of testing new designs concepts and make the transition to new products efficient and inexpensive. Conventional design and design-optimization techniques typically do not apply for AM part design. The flexibility of AM in generating complex shapes implies a lesser number of components and implicit savings in assembly. Also, the possibility of latticed structures allows for reduced components through consolidation. The ability to incorporate these structures broadens the design criteria to achieve previously unforeseen possibilities. After arriving at the part design, the \"print design\" needs to be addressed. The AM process involves large thermal transients, phase change and non-linear material properties potentially leading to distortions and residual stresses in the finished component. Process simulation is valuable in estimating stresses generated in components, distortion, and adequacy of the support design. The presentation illustrates the simulation methodologies in design, multi-physics and process optimization for a drill-head geometry.","PeriodicalId":10936,"journal":{"name":"Day 2 Tue, August 17, 2021","volume":"94 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80332067","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":"Replacing the Piled Foundations of the Houphouët-Boigny Bridge in Abidjan Cote d’Ivoire","authors":"Ashkan Ameri, A. Mercer","doi":"10.4043/31285-ms","DOIUrl":"https://doi.org/10.4043/31285-ms","url":null,"abstract":"\u0000 Due to historical ground movement, increased traffic levels, and general degradation, this important road and rail bridge which provides an essential link between the interior of the country and the Port of Abidjan, required significant repair and reinforcement. This included strengthening the pre-stressed concrete box girders and replacement of the piled foundations. Replacement piles had to be adjacent to, and no longer than, the existing piles to not compromise the stability of the operational bridge during the works. The underlying geology, however, meant that the pile loads had to be predominantly transferred into the ground through end bearing. Rather than installing a greater number of piles or larger diameter piles, innovative thinking changed the usual mind-set of designing the piles to the prevailing ground conditions, to designing the ground conditions to suit the piles. Jet grouted columns were installed beneath the toes of the new piles to increase the bearing capacity of the ground. This significantly contributed to the sustainability of the project and reduced carbon emissions through saving concrete, steel, plus transportation and disposal of spoil.","PeriodicalId":10936,"journal":{"name":"Day 2 Tue, August 17, 2021","volume":"296 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74953979","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":"Benefits of Using Requirements Management Tools on a Digitized API 17O Document","authors":"Rey Climacosa, Sierra Foster Matlock, Joveline Anne Ollero, D. Miller","doi":"10.4043/31024-ms","DOIUrl":"https://doi.org/10.4043/31024-ms","url":null,"abstract":"\u0000 Currently oil and gas companies are spending billions of dollars on digitalization efforts. One important aspect of a project that needs to be digitized are requirements. Most oil and gas companies receive project documentation and requirements as PDF files. Receiving PDF documents make it very difficult for companies to manipulate the content to identify which parts of the document are requirements and which parts are just background information. In addition, documents that contain requirements have poorly written requirements that are ambiguous, and can have many interpretations, making it difficult to show compliance. To solve the issues caused by poorly written requirements and receiving PDF files instead of receiving requirements in a more usable format, the solution is to rewrite the requirements and use a requirements management (RM) tool to put the requirements in a database. The American Petroleum Institute (API) 17O 2nd Edition document and a representative list of High Integrity Pressure Protection System (HIPPS) product requirements are used to show the benefits of using a requirements management tool. This paper will describe the prerequisites prior to selecting an RM tool, show how using a requirements quality analyzer tool can aid in preparing requirements to be imported into an RM tool, demonstrate the main benefits of using an RM tool in a project context, and discuss lessons learned from adding an RM tool to a document-based project.","PeriodicalId":10936,"journal":{"name":"Day 2 Tue, August 17, 2021","volume":"12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76290852","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":"Digitally Transforming Offshore Production: Making Low-Manned Brownfield Installations a Reality","authors":"Elgonda LaGrange, Brett M. Bollinger, Ali Elnaamani","doi":"10.4043/30996-ms","DOIUrl":"https://doi.org/10.4043/30996-ms","url":null,"abstract":"This paper outlines an approach for de-manning brownfield offshore production installations. It discusses how the latest advancements in rotating equipment, electrical & automation systems, and digitalization can be applied to reduce operating costs, lower breakeven prices, and extend the lifetime of existing/aging fields.\u0000 The approach is value-rather than technology-driven and focuses on prioritizing investments based on return on investment (ROI) to enable low-manned operations as a stepping-stone towards unmanned installations. The paper discusses key facets of a holistic de-manning strategy, including:\u0000 Remotely controlled production operations Predictive analytics to reduce unplanned downtime and extend mean time between overhauls (MTBO) Automated inspections Remote collaboration Unified data management Change management\u0000 The concepts presented in the paper are derived from the authors’ company's work implementing digital solutions for customers in both onshore and offshore oil and gas, and power generation industries. It also draws on the results of an in-depth onshore field de-manning study that was conducted for a major Middle East national oil company (NOC).","PeriodicalId":10936,"journal":{"name":"Day 2 Tue, August 17, 2021","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75934819","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":"Unlocking Potential Thru Sand Management Insights in Digital Fields","authors":"Shazana Ezza Mohd Shabarudin, Mohamad Salhizan Salleh, Hizamal Afdzal Abu Bakar, Nasri Muhamad Jamaluddin, N. Tri, R. Hermann, Roberto Fuenmayor, M. Mokhlis","doi":"10.4043/31104-ms","DOIUrl":"https://doi.org/10.4043/31104-ms","url":null,"abstract":"\u0000 Sand production is creating sand erosion and deposition issues at multiples levels such as tubing, choke and pipeline, therefore causing multiples undesirable events such as unplanned production deferment, integrity and sand handling capacity issues in each field.\u0000 Traditionally, each field has common practices to address sand issues. However, this creates non-standard procedures and prevents sharing best practices around all the assets. Managing sand production and related risks are keys where a multi-disciplined team (from subsurface to the surface) is required to ensure safe operations in more than 45 offshore fields.\u0000 To efficiently manage such a challenge at scale, there was a need to develop a single common digital platform for all. The digital platform provides unified user experience and proactive actionable insights to all assets with characteristics such as;\u0000 Scalable to all fields Solution architecture to allow fast implementation Same company-wide user interface/user experience platform\u0000 To achieve this ambition, it was necessary to move away from traditional waterfall project development to agile approach, automating ingestion of data from multiple sources, integrating the in-house development tool as engine based on equations develop specifically for Malaysia fields.\u0000 The solution was deployed to all fields during 2019. This had created additional benefits such as\u0000 Transparency on the data: Anyone can access to any field Visible Metrics: All fields sharing the same metrics, also improving and developing adjustments according to each situation Regulatory Compliance: Helping to keep up to date with sand sampling\u0000 There are already fields reporting examples of value realization in the form of Cost Avoidance and/or reduction in unplanned deferment due to improved Sand Management handling from the solution. It is expected that the value realization will increase by taking actions of protecting the field of any Loss of Primary Containment (LOPC), saving time of deciding as Process Cycle Efficiency (PCE). The solution can potentially be utilized for annual field forecasting for work program and budget cycle.","PeriodicalId":10936,"journal":{"name":"Day 2 Tue, August 17, 2021","volume":"24 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73862098","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":"Development of Design Criteria and NDE Method for HPHT Equipment","authors":"Dilip Parth Pathak, K. Padmanabha, Robert Joseph Wilhelmi, Luiz Henrique Velloso Coutinho, Venkata Subba Rao Veera","doi":"10.4043/31109-ms","DOIUrl":"https://doi.org/10.4043/31109-ms","url":null,"abstract":"\u0000 Subsea production systems have been using API-specified methods and detection criteria for nondestructive examination (NDE) for equipment up to 15,000-psi rated working pressure. With higher pressure requirements and use of methods for evaluation of the fatigue life of HPHT equipment, existing criteria cannot be sufficient to achieve the desired fatigue life. This paper demonstrates more stringent design criteria and a detection method that was developed to achieve HPHT fatigue life, yet is cost and schedule effective.\u0000 When fracture mechanics was used for fatigue life estimation, an initial flaw size is stated as a starting point in determining design life. Using API-specified NDE criteria of 1/16-inch detection of surface flaw, project design life was not achieved for certain components without a major redesign and retest. Smaller flaw lengths were preferred in critical areas instead of standard flaw sizes. This created a need for a high-sensitivity penetrant inspection technique to effectively detect this new minimum flaw size in critical areas. Various methods of NDE were considered, and a conclusion was taken in selecting the best inspection method.\u0000 Fracture mechanics and finite element analysis required a minimum detectable flaw size length of 1/32 inch to meet the project design life without changing equipment technology. By using surface NDE with fluorescent liquid dye penetrant of sensitivity levels 2 and 3, all seeded flaws of 1/32-inch were consistently detected in the validation test coupon, which enabled the use of this stricter criteria for the analysis. Detailed procedures were established, and validation testing results were documented with photographs of detected flaws. Seeded flaw coupons were manufactured for validation of procedures and to train the various facilities that will use these techniques for production equipment. Additionally, procedures and guidelines were provided to inspectors and inspection facilities to ensure proper implementation of the methods. Measurement system analysis for repeatability and reproducibility was conducted at the facilities. This enabled the fatigue design of the HPHT equipment to advance beyond the boundaries of traditional methods and acceptance criteria set by current industry standards.\u0000 New and tighter acceptance criteria were developed to improve HPHT fatigue life. High-sensitivity penetrant inspection technique, capable of detecting flaw sizes as small as 1/32-inch, was established and implemented. This inspection technique is not common to the oil and gas industry because of the ability of standard methods to readily detect the API-required criteria. The method has improved detection capabilities and has the potential to move toward adopting advanced design methods to address HPHT requirements.","PeriodicalId":10936,"journal":{"name":"Day 2 Tue, August 17, 2021","volume":"39 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77802862","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":"Reimagine LNG – An Overview of the LNG Market Potentially Leading to a Future AFLOAT","authors":"Aparna Subramanian","doi":"10.4043/30929-ms","DOIUrl":"https://doi.org/10.4043/30929-ms","url":null,"abstract":"\u0000 \u0000 \u0000 LNG has proven its worth, to meet energy demands throughout the globe at scale, whilst providing the cleanest fossil fuel. To complement the emerging trend of energy transition all over the globe, LNG provides a robust solution for a potential future.\u0000 This paper will describe the current state and outlook of the LNG market, rethinking of LNG contracts and the major drivers that could favor a Floating LNG facility as a market driver compared to land-based facilities.\u0000 \u0000 \u0000 \u0000 With recent events which include the oil price slump, LNG supply glut and the ongoing COVID 19 pandemic, the imbalance in the LNG market is predicted to run with low market price that could last up to four more years.\u0000 On one hand, low market price is putting a lot of pressure on suppliers but on the flip side, this can be a game changer for the consumers. Consumers can potentially exploit buyers' market by making the investments much stronger to strive towards a clean future.\u0000 Conventionally LNG producers have been land-based until facilities like Golar LNG made historical success. The focus of the Floating LNG industry is now directed towards small and mid-scale production.\u0000 With a constant demand from stakeholders to get facilities up and running in a short development schedule, Floating LNG can provide some compelling benefits when combined with the concept of an economic time chartering investment rather than a CAPEX investment. This leads to a shortened execution time from discovery to market and avoids the extensive and time-consuming permitting and land use issues that are typical of onshore projects.\u0000 The main drivers / challenges for a Floating LNG Facility investment are\u0000 · Location, associated country regulatory restrictions · Source of gas · Market demand · Technology based on capacity · Project financing\u0000 Floating LNG can not only provide economic benefits for first use but could also provide a commercial route to easy re-deployment to new gas sources, wherever necessary and possible.\u0000 The paper will include:\u0000 · Reflection on the LNG market of the recent past · Impact of COVID 19 on LNG market globally and the projected trends by various analysts · Overview of LNG contract types · Technical and commercial Drivers of Floating LNG which will potentially influence the market\u0000 \u0000 \u0000 \u0000 The take-away from this paper is a deeper understanding of the following:\u0000 · Current LNG market and outlook · Reimagine LNG Contracts · Re-explore Floating LNG drivers\u0000 \u0000 \u0000 \u0000 While the COVID 19 has created one of the reasons for the major impact on the market, this paper will present more interesting facts on many other contributing reasons for the present market downturn.\u0000 This will in turn give an in-depth understanding for reimagining the major three drivers of Floating LNG, potentially leading to a WIN-WIN solution. This will help to sustain a constant cash flow amongst both sellers and buyers.\u0000","PeriodicalId":10936,"journal":{"name":"Day 2 Tue, August 17, 2021","volume":"3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84038388","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":"Potential of Synthetic Weather Radar for Squall Identification and Prediction","authors":"Ryan Fulton, James J. Luffman","doi":"10.4043/31247-ms","DOIUrl":"https://doi.org/10.4043/31247-ms","url":null,"abstract":"\u0000 Squall event impacts are a long-standing problem offshore, especially in regions where radar imagery and reliable nowcasts are unavailable. Existing methodologies for monitoring and advising of impacts have been near-stagnant for decades. In this paper, initial results of using machine learning tools paired with advancements in weather satellite imagery processing are presented. The approach is based on a novel method of processing satellite, lightning, radar, and numerical weather model datasets trained against observed weather radar as truth to create gridded synthetic radar and short-term forecast. The capability has demonstrated to be an effective system in simulating and predicting the high precipitation rates that are associated with squall activity in real-time. The resulting output provides precipitation rates among other attributes at 1-km resolution, updated every five minutes, and gridded extrapolative nowcasts produced to four hours ahead. Initial results over multiple geographic domains of the system have performed exceptionally well at identifying and tracking strong thunderstorm activity, with and without ground radar, including detection rates over 90% and false alarm rates near 20%. As the technique is improved and deployed more broadly on a global scale, the objective is to provide a consistent, high-fidelity dataset that enables squall risk identification and advisories within a minimum two-hour planning horizon. The primary visualization for situational awareness is a commonly used format: weather radar. New levels of productivity and safety are possible with the global expansion and application of this system. This work was completed as a collaboration between Solcast, WeatherZone, and DTN.","PeriodicalId":10936,"journal":{"name":"Day 2 Tue, August 17, 2021","volume":"67 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84075732","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":"PEKK Poly Ether Ketone Ketone for High Temperature High Pressure Oil & Gas Conditions","authors":"Alexis Geslin, Paul Clement, P. Bussi, R. Barsotti, Jonathon Hollahan, K CalvinMary","doi":"10.4043/30987-ms","DOIUrl":"https://doi.org/10.4043/30987-ms","url":null,"abstract":"\u0000 Poly Aryl Ether Ketones (PAEK), and in particular Poly Ether Ether Ketone (PEEK), have established themselves as polymers of choice for extreme environments. This is especially true in the Oil & Gas industry, with its very harsh conditions (high temperatures, high pressures and corrosive fluids). Within the PAEK family, Poly Ether Ketone (PEK) and Poly Ether Ketone Ether Ketone Ketone (PEKEKK) were later introduced to address the need for higher mechanical and thermal properties than PEEK; unfortunately, their chemical resistance has been reported as not matching that of PEEK.\u0000 In this paper, we report on novel, high viscosity, Poly Ether Ketone Ketone (PEKK) polymers that combine PEEK-like processing, high mechanical performances, barrier properties and very good chemical resistance in the NORSOK M710 test, positioning PEKK as a strong candidate for demanding Oil & Gas applications, such as O-rings, seals or electrical connectors.","PeriodicalId":10936,"journal":{"name":"Day 2 Tue, August 17, 2021","volume":"89 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80229140","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}