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Leakage and diffusion characteristics of underground hydrogen pipeline 地下氢气管道的泄漏和扩散特性
Petroleum Pub Date : 2024-06-01 DOI: 10.1016/j.petlm.2023.06.002
Wenkang Zhang, Guanghui Zhao
{"title":"Leakage and diffusion characteristics of underground hydrogen pipeline","authors":"Wenkang Zhang,&nbsp;Guanghui Zhao","doi":"10.1016/j.petlm.2023.06.002","DOIUrl":"10.1016/j.petlm.2023.06.002","url":null,"abstract":"<div><p>Soil corrosion and hydrogen embrittlement are the main factors of hydrogen pipeline failure. The gas escapes, diffuses and accumulates in the soil and enters the atmosphere when leak occurs. The mechanism of gas diffusion in buried pipelines is very complicated. Mastering the evolution law of hydrogen leakage diffusion is conducive to quickly locating the leakage point and reducing the loss. The leakage model of the underground hydrogen pipeline is established in this paper. The effect of leakage hole, soil type, pipeline pressure, pipeline diameter on hydrogen leakage diffusion were investigated. The results show that when the hydrogen pipeline leaks, the hydrogen concentration increases with the increase of leakage time, showing a symmetrical distribution trend. With the pipeline pressure increase, hydrogen leakage speed is accelerated, and longitudinal diffusion gradually becomes the dominant direction. As the leakage diameter increases, hydrogen leakage per unit of time increases sharply. Hydrogen diffuses more easily in sandy soil, and its diffusion speed, concentration, and range are higher than that in clay soil. The research content provides a reference and basis for the detection and evaluation of buried hydrogen pipeline leakage.</p></div>","PeriodicalId":37433,"journal":{"name":"Petroleum","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2405656123000378/pdfft?md5=8fdd518068c30907b6a649155aae6f9b&pid=1-s2.0-S2405656123000378-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85133866","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A hybrid machine learning approach based study of production forecasting and factors influencing the multiphase flow through surface chokes 基于混合机器学习方法的生产预测和多相流通过表面扼流圈的影响因素研究
Petroleum Pub Date : 2024-06-01 DOI: 10.1016/j.petlm.2023.06.001
Waquar Kaleem , Saurabh Tewari , Mrigya Fogat , Dmitriy A. Martyushev
{"title":"A hybrid machine learning approach based study of production forecasting and factors influencing the multiphase flow through surface chokes","authors":"Waquar Kaleem ,&nbsp;Saurabh Tewari ,&nbsp;Mrigya Fogat ,&nbsp;Dmitriy A. Martyushev","doi":"10.1016/j.petlm.2023.06.001","DOIUrl":"10.1016/j.petlm.2023.06.001","url":null,"abstract":"<div><p>Surface chokes are widely utilized equipment installed on wellheads to control hydrocarbon flow rates. Several correlations have been suggested to model the multiphase flow of oil and gas via surface chokes. However, substantial errors have been reported in empirical fitting models and correlations to estimate hydrocarbon flow because of the reservoir's heterogeneity, anisotropism, variance in reservoir fluid characteristics at diverse subsurface depths, which introduces complexity in production data. Therefore, the estimation of daily oil and gas production rates is still challenging for the petroleum industry. Recently, hybrid data-driven techniques have been reported to be effective for estimation problems in various aspects of the petroleum domain. This paper investigates hybrid ensemble data-driven approaches to forecast multiphase flow rates through the surface choke (viz. stacked generalization and voting architectures), followed by an assessment of the impact of input production control variables. Otherwise, machine learning models are also trained and tested individually on the production data of hydrocarbon wells located in North Sea. Feature engineering has been properly applied to select the most suitable contributing control variables for daily production rate forecasting. This study provides a chronological explanation of the data analytics required for the interpretation of production data. The test results reveal the estimation performance of the stacked generalization architecture has outperformed other significant paradigms considered for production forecasting.</p></div>","PeriodicalId":37433,"journal":{"name":"Petroleum","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2405656123000366/pdfft?md5=bfbc1ac106deb5949c0fb09de0b85ec9&pid=1-s2.0-S2405656123000366-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88698110","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Investigation of pore structure alteration and permeability enhancement of shale matrix by supercritical water treatment after hydraulic fracturing 水力压裂后超临界水处理对页岩基质孔隙结构改变和渗透性增强的研究
Petroleum Pub Date : 2024-06-01 DOI: 10.1016/j.petlm.2022.05.002
Yili Kang , Peisong Li , Wangkun Cao , Mingjun Chen , Lijun You , Jiang Liu , Zhehan Lai
{"title":"Investigation of pore structure alteration and permeability enhancement of shale matrix by supercritical water treatment after hydraulic fracturing","authors":"Yili Kang ,&nbsp;Peisong Li ,&nbsp;Wangkun Cao ,&nbsp;Mingjun Chen ,&nbsp;Lijun You ,&nbsp;Jiang Liu ,&nbsp;Zhehan Lai","doi":"10.1016/j.petlm.2022.05.002","DOIUrl":"10.1016/j.petlm.2022.05.002","url":null,"abstract":"<div><p>Shale gas reservoirs are unconventional tight gas reservoirs, in which horizontal wells and hydraulic fracturing are required to achieve commercial development. The fracture networks created by hydraulic fracturing can increase the drainage area extensively to enhance shale gas recovery. However, large volumes of fracturing fluid that is difficult to flow back to the surface and remained in the shale formation, will inevitably lead to damages of the shale formations and limit the effectiveness of stimulation. Supercritical water (SCW) treatment after hydraulic fracturing is a new method to enhance shale gas recovery by using appropriate heat treatment methods to the specific formation to convert the retained fracturing fluid into a supercritical state (at temperatures in excess of 373.946°C and pressures in excess of 22.064 MPa). An experiment was conducted to simulate the reaction between shale and SCW, and the capacity of SCW treatment to enhance the permeability of the shale was evaluated by measuring the response of the shale porosity and permeability on SCW treatment. The experimental results show that the shale porosity and permeability increase by 213.43% and 2198.37%, respectively. The pore structure alteration and permeability enhancement of the shale matrix were determined by analyzing the changes in pore structure and mineral composition after SCW treatment. The mechanisms that affect pore structure and mineral composition include oxidative catalysis decomposition of organic matters and reducing minerals, acid-catalyzed decomposition of carbonate minerals and feldspar minerals, hydrothermal catalysis induced fracture extension and cementation weakening induced fracture extension. SCW treatment converts harm into a benefit by reducing the intrusion of harmful substances into the shale formation, which will broaden the scope and scale of shale formation stimulation.</p></div>","PeriodicalId":37433,"journal":{"name":"Petroleum","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2405656122000451/pdfft?md5=c75b04cced6f21452f74642907fd950b&pid=1-s2.0-S2405656122000451-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91095546","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Asphaltene onset pressure measurement and calculation techniques: A review 沥青质起始压力测量和计算技术:综述
Petroleum Pub Date : 2024-06-01 DOI: 10.1016/j.petlm.2023.04.001
Sherif Fakher, Amr Yousef, Aseel Al-Sakkaf, Shams Eldakar
{"title":"Asphaltene onset pressure measurement and calculation techniques: A review","authors":"Sherif Fakher,&nbsp;Amr Yousef,&nbsp;Aseel Al-Sakkaf,&nbsp;Shams Eldakar","doi":"10.1016/j.petlm.2023.04.001","DOIUrl":"10.1016/j.petlm.2023.04.001","url":null,"abstract":"<div><p>Asphaltene precipitation can result in several production, operational, and transportation problems during oil recovery. If asphaltene precipitates and deposits, it can reduce reservoir permeability, damage wellbore equipment, and plug the pipelines. It is therefore extremely important to evaluate the conditions at which asphaltene precipitation occurs; this is referred to as the asphaltene onset pressure. Asphaltene onset pressure has been measured using many different experimental techniques. There have also been many attempts along the years to predict asphaltene onset pressure using mathematical correlations and models. This research provides an up-to-date comprehensive review of the methods by which asphaltene onset pressure can be measured using laboratory experiments and mathematical models. The research explains the main mechanisms of all the laboratory experiments to measure asphaltene onset pressure under static conditions and how to conduct them and highlights the advantages and limitations of each method. The research also provides a summary of the commonly used mathematical models to quantify asphaltene onset pressure directly and indirectly.</p></div>","PeriodicalId":37433,"journal":{"name":"Petroleum","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2405656123000202/pdfft?md5=0797f321455963448035d12a584912b3&pid=1-s2.0-S2405656123000202-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87610133","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fracturing-flooding technology for low permeability reservoirs: A review 低渗透储层的压裂-注水技术:综述
Petroleum Pub Date : 2024-06-01 DOI: 10.1016/j.petlm.2023.11.004
Nianyin Li , Shijie Zhu , Yue Li , Jingrui Zhao , Bo Long , Fei Chen , Erzhen Wang , Wentao Feng , Yanan Hu , Shubei Wang , Chen Jiang
{"title":"Fracturing-flooding technology for low permeability reservoirs: A review","authors":"Nianyin Li ,&nbsp;Shijie Zhu ,&nbsp;Yue Li ,&nbsp;Jingrui Zhao ,&nbsp;Bo Long ,&nbsp;Fei Chen ,&nbsp;Erzhen Wang ,&nbsp;Wentao Feng ,&nbsp;Yanan Hu ,&nbsp;Shubei Wang ,&nbsp;Chen Jiang","doi":"10.1016/j.petlm.2023.11.004","DOIUrl":"10.1016/j.petlm.2023.11.004","url":null,"abstract":"<div><p>The development of low-permeability oil and gas resources presents a significant challenge to traditional development methods. To address the problem of “no injection and no production” in low -permeability reservoirs, a novel fracture-injection-production integration technology named fracturing-flooding has been proposed by oilfield sites. This technology combines the advantages of conventional fracturing, water flooding, and chemical flooding, resulting in improved reservoir physical properties, increased injection, replenished energy, and increased oil displacement efficiency. The technology is especially suitable for low-permeability reservoirs that suffer from lack of energy, and strong heterogeneity. Fracturing-flooding technology has shown significant results and broad development prospects in some oilfields in China. This paper analyzes the development status of fracturing-flooding technology from its development history, technical mechanism, technical characteristics, process flow, types of fracturing and oil displacement fluids, and field applications. Physical and numerical simulations of fracturing-flooding technology are also summarized. The results suggest that fracturing-flooding technology is more effective than conventional fracturing, water flooding, and chemical flooding in stimulating low-permeability tight reservoirs and improving oil recovery. Moreover, it has a high input-output ratio and can be utilized for future reservoir stimulation and transformation.</p></div>","PeriodicalId":37433,"journal":{"name":"Petroleum","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2405656123000755/pdfft?md5=b6e9dc70d1a6c12131e85a35717b3940&pid=1-s2.0-S2405656123000755-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138625991","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Studying the effect of surfactant assisted low-salinity water flooding on clay-rich sandstones 研究表面活性剂辅助低盐度水浸对富粘土砂岩的影响
Petroleum Pub Date : 2024-06-01 DOI: 10.1016/j.petlm.2023.09.006
Saeed Khezerloo-ye Aghdam , Alireza Kazemi , Mohammad Ahmadi
{"title":"Studying the effect of surfactant assisted low-salinity water flooding on clay-rich sandstones","authors":"Saeed Khezerloo-ye Aghdam ,&nbsp;Alireza Kazemi ,&nbsp;Mohammad Ahmadi","doi":"10.1016/j.petlm.2023.09.006","DOIUrl":"10.1016/j.petlm.2023.09.006","url":null,"abstract":"<div><p>Sandstone reservoirs often contain clay particles that can cause damage and reduce permeability during low-salinity water flooding. In this study, the effect of surfactants on fine migration in clay-rich sandstones and its impact on oil recovery was investigated.</p><p>First, the impact of surfactants on interparticle forces in fine-matrix, fine-fine, and oil-matrix systems was modeled. The results showed that both CTAB (cetyltrimethyl ammonium bromide) and QS (quillaja saponin) cause EDL compaction, weakening the repulsive forces. However, SDS (sodium dodecyl sulfate) and TX (triton X-100) do not affect the EDL. Next, the effect of surfactants on IFT reduction and wettability alteration was experimentally investigated. All surfactants reduced IFT due to the surface excessive concentration mechanism. The wettability alteration experiment illustrated that although QS and CTAB compact EDL around oil and matrix particles leading to attraction force augmentation, they both alter wettability through adsorption on matrix and carboxylic groups present in crude oil, respectively.</p><p>Surfactant aqueous solutions were then injected into various clay-rich sandstone sanpacks, which resulted in increased oil recovery. However, the mechanisms leading to enhanced oil recovery variedby surfactant type. CTAB increased recovery by 10% through IFT reduction and wettability alteration, while SDS and TX increased recovery by 12% and 9%, respectively, through wettability alteration and extreme fine migration. In contrast, partial fine migration in the QS flooding experiment reached a recovery increase of 18%. Permeability trends through experiments were also recorded. During CTAB injection, permeability did not reduce, while QS aqueous solution reduced rock permeability to 5 mD. SDS and TX reduced the magnitude of permeability to 2 mD.</p><p>In conclusion, this study demonstrates that surfactants can effectively improve oil recovery in clay-rich sandstones by altering the interparticle forces, reducing IFT, and changing wettability. The results suggest that the type of surfactant used should be carefully selected to achieve the desired recovery increase without affecting the permeability of the reservoir.</p></div>","PeriodicalId":37433,"journal":{"name":"Petroleum","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2405656123000640/pdfft?md5=db1c947c4dd6b393aad4cbc74d35ac13&pid=1-s2.0-S2405656123000640-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135389456","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Investigation of the transformation of organic matter of carbonate deposits of the Semiluksky–Mendymsky horizon under hydrothermal conditions 塞米卢克斯基-门迪姆斯基地层碳酸盐沉积有机物在热液条件下的转化研究
Petroleum Pub Date : 2024-06-01 DOI: 10.1016/j.petlm.2023.07.001
S.M. Petrov , A.I. Lakhova , E.G. Moiseeva , A.G. Safiulina
{"title":"Investigation of the transformation of organic matter of carbonate deposits of the Semiluksky–Mendymsky horizon under hydrothermal conditions","authors":"S.M. Petrov ,&nbsp;A.I. Lakhova ,&nbsp;E.G. Moiseeva ,&nbsp;A.G. Safiulina","doi":"10.1016/j.petlm.2023.07.001","DOIUrl":"10.1016/j.petlm.2023.07.001","url":null,"abstract":"<div><p>The paper presents the results of studies on the transformation of the organic matter of siliceous-clayey carbonate rocks of the Semiluksko–Mendymsky horizon of the Romashkino oil field in a hydrothermal fluid for an hour (with a water-to-rock ratio of 33) at 340°C and 380°C and pressures of 17 and 20 MPa. As a result of hydrothermal treatment, at 340°C and 17 MPa, based on nitrogen porosimetry and electron microscopy data, transformations of rock-forming minerals in the rock are observed. They lead to an increase in the volume and average diameter of mesopores in it and the formation of micropores, as well, which improve its filtration properties. At the same time, the amount of kerogen in the composition of the organic matter decreases and the yield of the petroleum hydrocarbon extract increases, in which, according to the SARA analysis, the content of asphaltenes increases and the content of resins, aromatic and saturated hydrocarbons decreases. In the composition of aroatic hydrocarbons, the proportion of alkyltrimethylbenzenes and dibenzothiophenes increases, phenanthrene homologues appear, and in the composition of saturated hydrocarbons, the amount of iso-structure alkanes decreases relative to the content of linear alkanes. Raising the temperature and pressure of the hydrothermal fluid to 380°С and 20 MPa increases the degree of kerogen conversion from 12.4% to 23.6%. At the same time, changes occurring in the component composition of petroleum hydrocarbon extracts remains similar to the experiments carried out at 340°C and 17 MPa; the content of naphthalenes decreases, the content of dibenzothiophenes increases and C<sub>11</sub>–C<sub>17</sub>, C<sub>19</sub>–C<sub>22</sub> alkyltrimethylbenzenes appear. According to IR spectroscopy, with increasing temperature and pressure of the hydrothermal fluid the intensity of the absorption bands of the aromatic ring, aliphatic fragments, and oxygen-containing groups increases in resins; the structural-group composition of asphaltenes changes little: aromaticity and the content of condensed structures slightly increase. The revealed distinctive features in the composition of organic matter after hydrothermal impact on siliceous-clayey carbonate rocks confirm the concept of staged destruction of kerogen, when large structural heteroatomic blocks (asphaltenes) are split off at the initial stages. Changes occurring in the composition of petroleum hydrocarbon extracts indicate their involvement in the process of hydrothermal transformation of organic matter of siliceous-clayey carmbonate rocks with the predominant reactions of dehydrogenation of naphthenic compounds and oxidative polycondensation of aromatic structures. The data of electron microscopy and nitrogen porosimetry of rocks after hydrothermal exposure at 380°С and 20 MPa indicate a deterioration in their reservoir properties. The most optimal thermobaric conditions of the hydrothermal fluid for the generation of petroleum hydrocarb","PeriodicalId":37433,"journal":{"name":"Petroleum","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2405656123000433/pdfft?md5=19a48947e03d9129a1ee0232ffcfa150&pid=1-s2.0-S2405656123000433-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86296810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A thermo-mechanical simulation for the stability analysis of a horizontal wellbore in underground coal gasification 地下煤炭气化过程中水平井筒稳定性分析的热力学模拟
Petroleum Pub Date : 2024-06-01 DOI: 10.1016/j.petlm.2023.11.003
Mohammadreza Shahbazi , Mehdi Najafi , Mohammad Fatehi Marji , Ramin Rafiee
{"title":"A thermo-mechanical simulation for the stability analysis of a horizontal wellbore in underground coal gasification","authors":"Mohammadreza Shahbazi ,&nbsp;Mehdi Najafi ,&nbsp;Mohammad Fatehi Marji ,&nbsp;Ramin Rafiee","doi":"10.1016/j.petlm.2023.11.003","DOIUrl":"10.1016/j.petlm.2023.11.003","url":null,"abstract":"<div><p>The stability analysis of horizontal wells is essential for a successful underground coal gasification (UCG) operation. In this paper, a new 3D coupled thermo-mechanical numerical modeling is proposed for analyzing the stability of UCG horizontal wells. In this model, the effect of front abutment stresses, syngas pressure, syngas temperature and thermal stresses is considered to predict the mud weight window and drilling mud pressure during UCG process. The results show that the roof caving in UCG panel has a greatest impact on the stability of horizontal well. Moreover, when the time of coal gasification is increased, the well convergence increases and for more stability it is necessary to increase the drilling mud pressure. This research was carried out on the M2 coal seam in Mazino coal deposit (Iran). The results showed that the mud weight window for horizontal well drilling is between 0 and 33 MPa. The appropriate stress for the maximum stability of the horizontal well, taking all the thermal and mechanical parameters into account, is 28 MPa. The suggested numerical method is a comprehensive and consistent way for analyzing the stability of horizontal wells in UCG sites.</p></div>","PeriodicalId":37433,"journal":{"name":"Petroleum","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2405656123000743/pdfft?md5=0de6c0fa8601ac5f32f18613d90f87c2&pid=1-s2.0-S2405656123000743-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139296314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sedimentary characteristics and lithofacies paleogeography of the Cambrian in Sichuan basin, Southwest China 中国西南四川盆地寒武纪沉积特征和岩相古地理
Petroleum Pub Date : 2024-06-01 DOI: 10.1016/j.petlm.2022.02.003
Lin Xie , Xuefei Yang , Yanhong Zhang , Yan Xu , Deming Zeng , Ruifeng Tang , Yao Du , Xingzhi Wang
{"title":"Sedimentary characteristics and lithofacies paleogeography of the Cambrian in Sichuan basin, Southwest China","authors":"Lin Xie ,&nbsp;Xuefei Yang ,&nbsp;Yanhong Zhang ,&nbsp;Yan Xu ,&nbsp;Deming Zeng ,&nbsp;Ruifeng Tang ,&nbsp;Yao Du ,&nbsp;Xingzhi Wang","doi":"10.1016/j.petlm.2022.02.003","DOIUrl":"https://doi.org/10.1016/j.petlm.2022.02.003","url":null,"abstract":"<div><p>Cambrian in Sichuan basin developed thick black shale, varies carbonate and clastic rock, which deposited in different sedimentary environment. Sichuan basin in the upper Yangtze platform contained a record of environment during the Cambrian. Detail facies analyses of Cambrian enable us to discuss the sedimentary environment and palaeogeographic setting. Sedimentation commenced in the Early Cambrian with the deposition of shelf facies (Qiongzhusi Formation and Canglangpu Formation). At this stage, thick shale and clastic rock deposited in Sichuan basin. At the end of the Early Cambrian, a carbonate platform developed in upper Yangtze platform, and Sichuan basin was located in restricted platform (Longwangmiao Formation). In the Middle Cambrian, tidal flat and restricted platform developed in Sichuan basin (Douposi Formation), because of continuous regression. During the Late Cambrian, Sichuan basin was located in carbonate platform again (Xixiangchi Formation). There are three types of sedimentary system in the Cambrian of Sichuan basin: clastic sedimentary system, clastics-carbonate mixed sedimentary system and carbonate sedimentary system. Vertically, the basin shows the evolutionary character of clastic-carbonate sedimentary systems. The three sedimentary systems correspond to three “transgression-regression” cycles of the Cambrian. The transgression in the initial period of the Early Cambrian led to the formation of clastic sedimentary system in the Qiongzhusi Formation of Lower Cambrian. The transgression in the later period of the Early Cambrian led to the formation of clastic-carbonate mixed sedimentary system in the Middle-Lower Cambrian. The transgression in the initial period of the Late Cambrian led to the formation of carbonate sedimentary system in the Xixiangchi Formation of Upper Cambrian. With the end of Late Sinian continental rifting ended, Sichuan basin entered a stable evolutionary stage of the craton basin, while the paleo-land developed in the north and southwest. In Qiongzhusi-Canglangpu period, the basin developed onshore-shelf sedimentary facies from west to east; In Longwangmiao-Xixiangchi period, the basin developed tidal flat-platform-slope sedimentary facies from west to east.</p></div>","PeriodicalId":37433,"journal":{"name":"Petroleum","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2405656122000189/pdfft?md5=c376094741c0b25b805ce74a36dc7184&pid=1-s2.0-S2405656122000189-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141328541","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Drilling dynamics measurement of drilling motors and its application in recognition of motor operation states through machine learning 钻孔电机的钻孔动态测量及其在通过机器学习识别电机运行状态中的应用
Petroleum Pub Date : 2024-06-01 DOI: 10.1016/j.petlm.2024.06.003
Fei Li, Haolan Song, Yifan Wang
{"title":"Drilling dynamics measurement of drilling motors and its application in recognition of motor operation states through machine learning","authors":"Fei Li, Haolan Song, Yifan Wang","doi":"10.1016/j.petlm.2024.06.003","DOIUrl":"https://doi.org/10.1016/j.petlm.2024.06.003","url":null,"abstract":"","PeriodicalId":37433,"journal":{"name":"Petroleum","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141403793","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}
引用次数: 0
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