Day 2 Wed, August 23, 2023最新文献

{"title":"Fugitive Emissions Study: How to Minimize and Control Methane Emissions While Utilizing Sand Separators","authors":"R. Wasfy, D. Spady, Á. Sisto, C. Hemstock, K. Hierath","doi":"10.2118/215754-ms","DOIUrl":"https://doi.org/10.2118/215754-ms","url":null,"abstract":"\u0000 The goal for all oil and gas well sites is to have zero fugitive emissions. This is functionally difficult during flowback and early production operations, however, minimizing and managing fugitive emissions to net-zero is possible with planning and careful production equipment selection.\u0000 Sand separators are a critical piece of flowback and early production equipment. The process of removing sand at high pressure through blowing vessels down to atmospheric pressure, provides conditions where fugitive emissions can be created. In order to reduce the unnecessary fugitive emissions, horizontal or low angle Desanders have shown better performance over vertical or spherical sand separators as they have a larger sand holding capacity as well as a reliable sand measuring system resulting in fewer cleanouts and unnecessary releases of fugitive emissions (Wasfy et al, SPE-196142-MS 10). Furthermore, simple changes and additions to the rig-up design can be made to allow for all methane emissions to be captured during the process providing options for how to handle greenhouse gases in order to minimize environmental impact.\u0000 Using a spherical separator as a base measurement, for 1 m3 (264.2 gallons) of sand stopped a vertical geometry would produce 94.3% of the carbon emissions of the spherical vessel while the horizontal desander would produce 34.5% of the carbon emissions of the spherical and a low angle tilt would produce 14.7% of the carbon emissions. Also, through leveraging improved rig-up design with Horizontal and Low-Angle Tilt Desander, all methane resulting from the desanding process can be captured and directed to flare or vapor recovery reducing the equivalent CO2 released into the environment to near zero.\u0000 With the industry moving to achieve the minimal amount of environmental impact, operators are looking at every aspect of the process to reduce methane emissions, including the flowback process. The implementing of horizontal or Low-Angle Tilt Desanders, the sand measurement system, and the improved rig-up design allows for the elimination of open tanks on location during flowback. Further analysis, design improvements, and technology integration continues in order to achieve the goal of eliminating flaring and to conserve all methane produced by compressing into the pipeline and/or reserving to fuel other completions operations.","PeriodicalId":422143,"journal":{"name":"Day 2 Wed, August 23, 2023","volume":"694 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121990635","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":"Be a Good Geoscientist First, and the Rest Will Follow","authors":"B. Roth, D. Hills","doi":"10.2118/215728-ms","DOIUrl":"https://doi.org/10.2118/215728-ms","url":null,"abstract":"\u0000 This paper seeks to demonstrate the application of learnings from the oil and gas industry, specifically in the field of geoscience, as they relate to applications within the growing industry of Carbon Capture, Utilization and Storage (CCUS). Additionally, this paper will highlight how current educational programs are already geared to produce a talent pipeline for young professionals beginning their careers in the CCUS field or for later career professionals who are looking to transition into CCUS.\u0000 To demonstrate the stated objectives, the fundamental theories and knowledge required to operate as a successful geoscientist in the oil and gas industry will be presented. This will include a discussion of basic skills and working knowledge as well as an introduction to various software utilized extensively within the oil and gas industry. This provides context illustrating where the geoscience community has been and the prior focus of many geoscience education pipelines. Then, a comparison of the oil and gas workflows to CCUS workflows will be made to demonstrate that the skills and techniques are aligned.\u0000 Example workflows from our experience developing CCUS projects will be presented with a focus on the geologic characterization, such as generating subsurface geologic and structural models and developing reservoir models to predict plume migration. It will be made clear that the fundamentals of these workflows and the skills necessary to implement them are essentially the same. Both oil and gas and CCUS workflows utilize the same basic knowledge and geologic understanding (e.g., reservoir porosity, permeability, volumetrics), the same data (e.g., geophysical well logs, seismic reflection surveys, geologic core analysis) and even the same software. This demonstrates the direct application of knowledge and workflows that were previously gatekept by the oil and gas community and highlights their significance in ability to be applied to new opportunities.\u0000 The discussion presented in this paper clearly identifies the overlap of experience gained throughout the detailed history of oil and gas exploration and its direct application to the burgeoning world of CCUS from the perspective of geologic characterization. The examples provided herein also demonstrate that the pipeline for creating new talent already exists with emphasis on learning the fundamentals of geoscience, and the specific application of those skills can be enacted seamlessly within the CCUS community.","PeriodicalId":422143,"journal":{"name":"Day 2 Wed, August 23, 2023","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125142312","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 Novel and Scalable Carbon Management Strategy for a Just Energy Transition","authors":"S. Buskie, G. Visman, M. Dekker, O. Šesták","doi":"10.2118/215741-ms","DOIUrl":"https://doi.org/10.2118/215741-ms","url":null,"abstract":"\u0000 A novel carbon credit supply stream at the center of the energy transition is presented that converts future plug and abandonment liabilities into assets. This approach offers unique benefits when compared to industry standard operating practices including reductions in Scope 1, 2 and 3 greenhouse gas emissions (GHG) and reduced methane intensities.\u0000 A macroeconomic study of U.S. hydrocarbon production was used to demonstrate the total addressable market and potential impact of the decarbonization strategy if deployed at scale. To facilitate scaled deployment of this carbon management approach the application of distributed ledger technology, a blockchain, is proposed. This technology must be coupled with trustworthy and reliable engineering assessments to satisfy the requirements within the voluntary carbon market. A case study is used to describe the economic and operational assessments an operator may take to apply the approach in practice.\u0000 The study shows the opportunity to generate 1 GtCO2e per year of carbon credits while improving the efficiency of U.S. oil and gas production. This is roughly equivalent to the GHG emissions of Japan, or 50% of the anticipated voluntary carbon market volume in 2030. (Crippa, 2022) The adaptation of best practice geoscience and engineering can be used to accurately assess the permanence and quantities of oil and gas eligible for crediting. The use of a blockchain to anchor the outcomes of the approach digitally in a meta-registry not only eliminates the possibility of double counting and provides transparency but also results in the world's first blockchain native carbon credit; a valuable offering within the voluntary carbon market. A case study shows that upstream suppliers of carbon credits could apply this approach and generate carbon credits with competitive breakeven price on the voluntary carbon market, meanwhile reducing their abandonment liabilities on their balance sheet. This novel carbon management strategy coupled with scalable technology deployment defines the future of a just energy transition.\u0000 The paper presents the combination of two novel approaches in service of accelerating the energy transition. It is the first of its kind to demonstrate the impact of advancing the cessation of production from oil and gas wells in return for carbon credits. Additionally, by marrying this approach with blockchain technology it provides a unique solution to allow this decarbonization strategy to be deployed at scale while fulfilling the requirements of the voluntary carbon markets.","PeriodicalId":422143,"journal":{"name":"Day 2 Wed, August 23, 2023","volume":"280 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134318889","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":"Transient Study of Carbon Dioxide Transportation Pipeline Rupture and a Novel Approach for the Carbon Dioxide Plume Containment","authors":"Haidan Lu, C. Kwok, N. G. Bustamante, S. Atmaca, Sean Roy","doi":"10.2118/215727-ms","DOIUrl":"https://doi.org/10.2118/215727-ms","url":null,"abstract":"\u0000 The safe and efficient operation of carbon dioxide (CO2) pipelines is essential for compliance with federal regulations and the operational safety of carbon capture and sequestration (CCS) projects. In this study, we aim to gain insights into the hydraulic conditions and CO2 phase changes during fullbore rupture and investigate the potential of using pipe-in-pipe configuration to achieve better CO2 plume containment during this pressure loss event.\u0000 In this study, we modeled high-concentration CO2 with less than 1% impurities using a pressure-enthalpy flashing routine. We applied the transient multiphase flow analysis to model the CO2 pipeline midpoint fullbore rupture to the atmosphere to predict temperature, pressure, and fluid thermodynamic properties within the pipeline. Key results such as pipe bore temperature profile change over time on either side of the rupture, the minimum temperature locations, and the time to return to ambient temperature were extracted to understand the risk and impact on the pipeline integrity because of the CO2 pipeline rupture. Then the investigation of the use of eccentric pipe-in-pipe systems for hydraulic changes in the event of a pipeline rupture was carried out. Based on the results, the potential of using the casing pipe to contain the leaked CO2 and prevent CO2 plumes from escaping into the atmosphere was explored.","PeriodicalId":422143,"journal":{"name":"Day 2 Wed, August 23, 2023","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114090731","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}