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A Multiphase Wellbore Flow Model for Sour Gas “Kicks” 认领 引用 被引量:1
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作者 Miao He Yihang Zhang +1 位作者 Mingbiao Xu Jun Li 《Fluid Dynamics & Materials Processing》 EI 2020年第5期1031-1046,共16页
This study presents a new multiphase flow model with transient heat transfer and pressure coupling to simulate HTHP(high temperature and high pressure)sour gas“kicks”phenomena.The model is intended to support the es... This study presents a new multiphase flow model with transient heat transfer and pressure coupling to simulate HTHP(high temperature and high pressure)sour gas“kicks”phenomena.The model is intended to support the estimation of wellbore temperature and pressure when sour gas kicks occur during drilling operation.The model considers sour gas solubility,phase transition and effects of temperature and pressure on the physical parameters of drilling fluid.Experimental data for a large-diameter pipe flow are used to validate the model.The results indicate that with fluid circulation,the annulus temperature with H2S kicks is the highest,followed by CO2,and CH4 is the lowest.The phase transition point of H2S is closer to wellhead compared with CO2,resulting in a faster expansion rate,which is more imperceptible and dangerous.With fluid circulation,the drilling fluid density and plastic viscosity both first decrease and then increase with the increase in the well depth.The bottom hole pressure when H2S kicks is greater than that for CO2 with the same amount of sour gas,and the pressure difference gradually increases with the increase of H2S/CO2 content.In addition,a parametric sensitivity analysis has been conducted to evaluate qualitatively and rank the influential factors affecting the bottom hole temperature and pressure. 展开更多
关键词 Multiphase flow model HTHP sour gas kicks phase transition
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Singapore: Cultural and Tourism Year of Jiangsu Kicks Off 认领 引用
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《China & The World Cultural Exchange》 2019年第2期5-6,共2页
The opening ceremony of The Charms of Wonderful Jiangsu一Cultural and Tourism Year of Jiangsu was held at the China Cultural Center in Singapore on Jan 26, 2019. The performance infused folk songs, dance, acrobatics a... The opening ceremony of The Charms of Wonderful Jiangsu一Cultural and Tourism Year of Jiangsu was held at the China Cultural Center in Singapore on Jan 26, 2019. The performance infused folk songs, dance, acrobatics and traditional instruments from Jiangsu, marking the beginning of a year-long event to showcase the natural scenery, art and cultural heritage of Jiangsu. 展开更多
关键词 Singapore Cultural Jiangsu Kicks
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Sino-Canadian Project on Carbon Cycle Kicks Off 认领 引用
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《Bulletin of the Chinese Academy of Sciences》 2002年第3期141-141,共1页
  A Sino-Canadian research project titled "Responding to the global warming: Improving China's carbon storage capacity" was officially initiated on August 2.……
关键词 Project Sino-Canadian Project on Carbon Cycle Kicks Off
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Kicks Controlling Techniques Efficiency in Term of Time 认领 引用
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作者 Ali K. Darwesh Thorkild Maack Rasmussen Nadhir Al-Ansari 《Engineering(科研)》 2017年第5期482-492,共11页
Kicks are the result of under balance drilling operation. Time consumed to control the kicks will be different in depending on the controlling technique. Drilling fluid considered as a first barrier to control formati... Kicks are the result of under balance drilling operation. Time consumed to control the kicks will be different in depending on the controlling technique. Drilling fluid considered as a first barrier to control formation pressure and well kicks. Any advance in drilling fluids leads to more controlled operation in term of time. This paper will follow the general increasing profile of pressure before entering the reservoir. Both methods of well controlling technique;circulating techniques and non-circulating have been implemented in many oil blocks. The process of designing and casing selection, setting depth and many other issues is predominately dependent on the utilization of accurate values of formation pressure. Formation pressures used to design safe mud weights to overcome fracturing the formation and prevent well kicks. Hence the emphasis has been placed on the practical utilization of kicks pressure near the reservoir. The presented relationships will help the engineer to better understand lithological columns and reduce potential hole problems during the kick appearance. Selecting the best well controlling practical method can lead to not harming the reservoir and more production later. Changes in some drilling fluid properties have been proposed with increasing the depth without damaging the reservoir. Suggestions in relation to the casing setting point of the intermediate section are also proposed. Standard equations with proper modification for gases and safety margin have been proposed for the future drilling operation in oil fields above the reservoir. 展开更多
关键词 Driller Technique Engineer Technique Drilling Fluid Kicks Reservoir
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NISSAN KICKS 肌肉小正太 认领 引用
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作者 王一鸣 《世界汽车》 2016年第11期16-21,共6页
'也许是日本人民族性格方面的原因,他们在汽车技术的应用上更愿意采用相对稳妥和保守的做法,比如涡轮增压早早地就被日本人开发出来,但将其发扬光大地却是欧美人。而在车型的研发上亦如此,在小型SUV已经大行其道的今天。
关键词 中控台 正太 NISSAN KICKS SUV 新车型
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EU project on agronomic portfolio kicks off 认领 引用
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《Bulletin of the Chinese Academy of Sciences》 2007年第1期64-64,共1页
The launching meeting for “benefiting from an improved agricultural portfolio in Asia,” a research project supported by the European Commission under
关键词 EU project on agronomic portfolio kicks off
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冲击波 5分钟带你了解日产Kicks 认领 引用
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作者 王文汐 《中国汽车市场》 2016年第11期
还记得在2014年的巴西圣保罗车展上,日产发布的那款Kicks概念车吗?现如今,这款外观亮眼的小车终于正式量产了,而且它的正式名称还是Kicks,即'冲击力'的意思。它究竟有多大能量?让我们拭目以待。Kicks量产版保留了大部分概念车... 还记得在2014年的巴西圣保罗车展上,日产发布的那款Kicks概念车吗?现如今,这款外观亮眼的小车终于正式量产了,而且它的正式名称还是Kicks,即'冲击力'的意思。它究竟有多大能量?让我们拭目以待。Kicks量产版保留了大部分概念车的设计,整体线条简洁而富有力量感。新车前脸采用了日产标志性的V型进气格栅。 展开更多
关键词 Kicks 概念车 冲击波
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Shaolin Soccer Kicks Off 认领 引用
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作者 Liu Wei 《ChinAfrica》 2011年第7期44-45,共2页
Will combining kungfu with soccer someday bring China glory at the World Cup? THE cries of 12,000 Chinese children moving in unison are impressive.On a hot June afternoon they go through their paces,perfecting the anc... Will combining kungfu with soccer someday bring China glory at the World Cup? THE cries of 12,000 Chinese children moving in unison are impressive.On a hot June afternoon they go through their paces,perfecting the ancient intricate moves of Shaolin kungfu in an area the size of four football fields.Standing on the sidelines a tall,black man watches intently.His name is Tchami Keou Joseph and he’s there to 展开更多
关键词 Shaolin Soccer Kicks Off World
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A quantitative interpretation method of gas kick driven by physicsinformed neural network 认领 引用
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作者 Hong-Wei Yang Biao Wang +5 位作者 Jun Li Geng Zhang Gong-Hui Liu Jia-Hao Zhan Zhen-Yu Long Chao Wang 《Petroleum Science》 SCIE EI CAS CSCD 2026年第5期2599-2621,共23页
To address the challenges associated with predicting wellbore fluid flow behavior and gas kick rates in deep,complex formations following gas kick events,this study develops a quantitative interpretation method of gas... To address the challenges associated with predicting wellbore fluid flow behavior and gas kick rates in deep,complex formations following gas kick events,this study develops a quantitative interpretation method of gas kick driven by physics-informed neural network(PINN).The proposed method integrates a physical model of gas—liquid two-phase flow in the wellbore into the neural network by formulating it as a loss function,leveraging annulus temperature and pressure data obtained from downhole dual measurement tools.The feasibility and effectiveness of this method are evaluated through comparative analysis.The result indicates that duringgas kick occurrences,this method achieves mean relative errors of 8.49%and 9.07%for the predicted gas volume fraction and apparent gas phase velocity between the dual measurement points,respectively,and 3.76%for the bottomhole gas kick rate,without the need for mesh discretization or predefined initial conditions,demonstrating strong applicability in field scenarios.Compared to the unscented Kalman filter(UKF)and genetic algorithm(GA),this method exhibits higher prediction accuracy and stability due to its global optimization capability,overcoming the divergence issues encountered by UKF and GA during point-wise recursive predictions under noisy pressure data conditions.Integrating this method with downhole dual measurement tools can provide valuable guidance for blowout risk assessment,well-control method selection,and well-killing parameter design after a gas kick. 展开更多
关键词 Gas kick Quantitative interpretation Physics-informed neural network Downhole dual measurement tools Partial differential equation
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东风日产全新KICKS劲客 认领 引用
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作者 佟星 王雷 《汽车之友》 2017年第13期22-23,共2页
上海车展,全新导入东风日产生产体系的KICKS中文定名劲客,这一小型SUV产品将目标客户群锁定在90后年轻一族,主要竞品车型为本田双车:缤智和XR-V。目前市场上合资小型SUV并不多见,劲客的出现也标志着日产开始真正发力该级别消费领域借... 上海车展,全新导入东风日产生产体系的KICKS中文定名劲客,这一小型SUV产品将目标客户群锁定在90后年轻一族,主要竞品车型为本田双车:缤智和XR-V。目前市场上合资小型SUV并不多见,劲客的出现也标志着日产开始真正发力该级别消费领域借厂家的邀请,我们进行了一次实车静态棚拍,这也是劲客首度向媒体公开内饰。 展开更多
关键词 KICKS 上海车展 目标客户群 主动安全系统 离地间隙 中控 近光灯 车内空间 自动开启 预计价格
Penalty Kicks Are All in the Mind 认领 引用
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作者 Michael Hopkin 纪家举 《科技英语学习》 2007年第4期31-33,共3页
足球比赛中的点球大战历来残酷,不少球员为此饮恨绿茵场,其中不乏像罗·巴乔和范·巴斯滕这样的巨星。本文从2006年世界杯法国队的特雷泽盖罚失点球说起,通过对41场点球大战的分析,认为点球罚进与否与球员罚球的顺序及罚球时面... 足球比赛中的点球大战历来残酷,不少球员为此饮恨绿茵场,其中不乏像罗·巴乔和范·巴斯滕这样的巨星。本文从2006年世界杯法国队的特雷泽盖罚失点球说起,通过对41场点球大战的分析,认为点球罚进与否与球员罚球的顺序及罚球时面临的压力情形有关,归根结底取决于球员的心理素质,并根据分析结果对正式比赛前如何练习罚点球提出建议。 展开更多
关键词 Penalty Kicks Are All in the Mind
280 000 T/A EPS Project Kicks off 认领 引用
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《China Chemical Reporter》 2008年第1期21-21,共1页
On November 28th,2007 construction onthe 280000t/a EPS(expandablepolystyrene)project of Huizhou Xingda Pet-rochemical Industry Co.,Ltd,was started in Dayawan Petrochemical
关键词 Project T/A EPS Project Kicks off
全文增补中
An unsupervised intelligent warning model for drilling kick risk based on multi-temporal feature coupling 认领 引用 被引量:2
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作者 De-Tao Zhou Zhao-Peng Zhu +6 位作者 Tao Pan Xian-Zhi Song Shi-Jie Xiao Gen-Sheng Li Cheng-Kai Zhang Chen-Zhan Zhou Zi-Yue Zhang 《Petroleum Science》 SCIE EI CAS CSCD 2025年第9期3613-3626,共14页
As oil and gas exploration continues to progress into deeper and unconventional reservoirs,the likelihood of kick risk increases,making kick warning a critical factor in ensuring drilling safety and efficiency.Due to ... As oil and gas exploration continues to progress into deeper and unconventional reservoirs,the likelihood of kick risk increases,making kick warning a critical factor in ensuring drilling safety and efficiency.Due to the scarcity of kick samples,traditional supervised models perform poorly,and significant fluctuations in field data lead to high false alarm rates.This study proposes an unsupervised graph autoencoder(GAE)-based kick warning method,which effectively reduces false alarms by eliminating the influence of field engineer operations and incorporating real-time model updates.The method utilizes the GAE model to process time-series data during drilling,accurately identifying kick risk while overcoming challenges related to small sample sizes and missing features.To further reduce false alarms,the weighted dynamic time warping(WDTW)algorithm is introduced to identify fluctuations in logging data caused by field engineer operations during drilling,with real-time updates applied to prevent normal conditions from being misclassified as kick risk.Experimental results show that the GAE-based kick warning method achieves an accuracy of 92.7%and significantly reduces the false alarm rate.The GAE model continues to operate effectively even under conditions of missing features and issues kick warnings 4 min earlier than field engineers,demonstrating its high sensitivity and robustness.After integrating the WDTW algorithm and real-time updates,the false alarm rate is reduced from 17.3%to 5.6%,further improving the accuracy of kick warnings.The proposed method provides an efficient and reliable approach for kick warning in drilling operations,offering strong practical value and technical support for the intelligent management of future drilling operations. 展开更多
关键词 Kick warning Graph autoencoder Field engineer operations False alarms Weighted dynamic time warping
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Numerical simulation of gas kick evolution and wellbore pressure response characteristics during the deepwater dual gradient drilling 认领 引用
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作者 Geng Zhang Hong-Wei Yang +5 位作者 Jun Li Hui Zhang Hong-Lin Huang Biao Wang Wen-Xu Wang Hao Chen 《Petroleum Science》 SCIE EI CAS CSCD 2025年第1期398-412,共15页
The gas kick represents a major risk in deepwater oil and gas exploration.Understanding the dynamics of gas kick evolution and the associated pressure response characteristics is critical for effective well control.In... The gas kick represents a major risk in deepwater oil and gas exploration.Understanding the dynamics of gas kick evolution and the associated pressure response characteristics is critical for effective well control.In this paper,we introduce a transient wellbore multiphase flow model specifically developed to simulate gas kick in deepwater dual-gradient drilling,incorporating a downhole separator.The model accounts for the variable mass flow within the annulus and heat exchange between the annular fluid and the formation.Using this model,we analyzed the multiphase flow and thermodynamic behavior during the gas kick.Simulation results reveal a progressive increase in bottom-hole temperature,underscoring its potential as a key indicator for gas kick early detection.Additionally,variable gradient parameters affect not only the annular equivalent circulating density(ECD)profile but also the evolution of the gas kick.The inclusion of a downhole separator alters the annular ECD profile,creating a“broken line”shape,which enhances adaptability to the multi-pressure systems typically encountered in deepwater forma-tion.By adjusting factors such as hollow sphere concentration,separator position,and separation effi-ciency,the annular ECD profile can be effectively customized.This study provides important theoretical insights and practical applications for utilizing dual-gradient drilling technology to address challenges in deepwater formation drilling. 展开更多
关键词 Gas kick Multiphase flow Dual gradient drilling Equivalent circulating density Downhole separator
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Samkok And the Monkey King Literary classics across the Sino-Thai border 认领 引用
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作者 Li Haolang 《China Report ASEAN》 2025年第6期38-39,共2页
A Peking Opera mask shaped like a monkey peered out from Charassri Jiraphas’phone case.In a caféat U-Center in Beijing’s Wudaokou area,she recalled her favorite scene from Shaw Brothers’cinematic adaptation of... A Peking Opera mask shaped like a monkey peered out from Charassri Jiraphas’phone case.In a caféat U-Center in Beijing’s Wudaokou area,she recalled her favorite scene from Shaw Brothers’cinematic adaptation of Journey to the West.“When the Monkey King shrinks into an insect just to enter the belly of Princess Iron Fan,”she recounted,her eyes sparkling with reminiscent wonder,“he punches and kicks until Princess Iron Fan can’t take it anymore,gives in,and lends him her Iron Fan.”Later,the Monkey King uses the magical fan to conjure such strong wind that the Flaming Mountains subside,breaking yet another impasse impeding the four Buddhist scriptureseeking monks. 展开更多
关键词 Peking Opera punches kicks peking opera mask iron fan laterthe Journey West Shaw Brothers princess iron fan she Chinese Literature
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Enhancement of multiatom non-classical correlations and quantum state transfer in atom–cavity–fiber system 认领 引用
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作者 Qi-Liang He Jian Sun +1 位作者 Xiao-Shu Song Yong-Jun Xiao 《Chinese Physics B》 SCIE EI CAS CSCD 2021年第1期170-177,共8页
Taking the advantage of "parity kicks" pulses, we investigate the non-classical correlation dynamics and quantum state transfer in an atom–cavity–fiber system, which consists of two identical subsystems, e... Taking the advantage of "parity kicks" pulses, we investigate the non-classical correlation dynamics and quantum state transfer in an atom–cavity–fiber system, which consists of two identical subsystems, each subsystem comprising of multiple two-level atoms trapped in two remote single-model optical cavities that are linked by an optical fiber. It is found that the non-classical correlations and the fidelity of quantum state transfer(between the atoms) can be greatly improved by the parity kicks pulses. In particular, with decrease of the time intervals between two consecutive pulses, perfect non-classical correlation transfer and entangled state transfer can be achieved. 展开更多
关键词 atom–cavity–fiber system quantum state transfer parity kicks pulses
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加勒比海小安德列斯岛弧Kick’emJenny海底火山岩的斜长石成分环带:示踪大洋岛弧岩浆房的演化 认领 引用 被引量:23
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作者 李原鸿 黄方 +2 位作者 于慧敏 贺治伟 陈沙 《岩石学报》 SCIE EI CAS CSCD 北大核心 2016年第2期605-616,共12页
我们对采自于加勒比海地区小安德列斯岛弧(Lesser Antilles Arc)Kick’em Jenny(KEJ)海底火山玄武岩中的斜长石斑晶进行了矿物形态和成分分析。利用电子探针(EMPA)和LA-ICP-MS测定了具有环带结构的斜长石斑晶中主量元素的空间分布,同时... 我们对采自于加勒比海地区小安德列斯岛弧(Lesser Antilles Arc)Kick’em Jenny(KEJ)海底火山玄武岩中的斜长石斑晶进行了矿物形态和成分分析。利用电子探针(EMPA)和LA-ICP-MS测定了具有环带结构的斜长石斑晶中主量元素的空间分布,同时也利用LA-ICP-MS分析了斜长石中Sr的分布。结果表明,在不同的矿物斑晶中,元素含量均表现出和环带结构相联系的空间分布变化。斜长石斑晶中最主要的结构为韵律环带以及熔蚀结构,所测定的矿物边缘都存在An值从由内向外迅速降低的致密韵律环带,可能反映了快速结晶时的不平衡;而晶体内部的稀疏韵律环带结构是由岩浆填充或对流活动导致的。部分斜长石的熔蚀层An值由内向外升高,反映了高Ca岩浆填充的过程。这说明斜长石斑晶的矿物形态和元素环带可以用来制约俯冲带海底火山岩浆从源区上升到岩浆房再到喷发的复杂过程,包括岩浆演化、熔体多次填充、熔体与结晶矿物之间的反应、以及矿物再熔融等。这对于理解海底火山的喷发以及岛弧岩浆岩的演化有重要意义。 展开更多
关键词 斜长石环带 Kick’em Jenny火山 岩浆演化过程 海底火山
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Evolution of gas kick and overflow in wellbore and formation pressure inversion method under the condition of failure in well shut-in during a blowout 认领 引用 被引量:8
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作者 Guo-Shuai Ju Tie Yan +2 位作者 Xiao-Feng Sun Jing-Yu Qu Qiao-Bo Hu 《Petroleum Science》 SCIE CAS CSCD 2022年第2期678-687,共10页
With ongoing development of oil exploration and techniques,there is a significant need for improved well control strategies and formation pressure prediction methods.In this paper,a gas-liquid transient drift flow mod... With ongoing development of oil exploration and techniques,there is a significant need for improved well control strategies and formation pressure prediction methods.In this paper,a gas-liquid transient drift flow model was established according to the gas-liquid two-phase flow characteristics during the gas kick.A Roe scheme was used for numerical calculation based on the finite volume method.The changes of bottom-hole pressure,casing pressure,the development law of cross-sectional gas holdup,and gas velocity,along with the vertical well depth,were analyzed through simulation examples.The time-series characteristics of mud pit gain were obtained by adjusting the formation parameter.The complex nonlinear mapping relationship between the formation parameters and the mud pit gain was established.The long short-term memory network(LSTM)of deep learning was used to obtain a formation pressure inversion when the blowout is out of control and the well cannot be shut-in.Experimental data from a well were used to verify the gas-liquid two-phase transient drift flow model based on the finite volume method,demonstrating that this method is reliable,with greatly improved prediction accuracy.This approach provides theoretical support for the early monitoring of gas kick during drilling,and for well-killing design and construction after uncontrolled blowout. 展开更多
关键词 Gas kick Formation pressure Multiphase flow Computational model Long short-term memory
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A dynamic managed pressure well-control method for rapid treatment of gas kick in deepwater managed pressure drilling 认领 引用 被引量:7
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作者 Hong-Wei Yang Jun Li +4 位作者 Ji-Wei Jiang Hui Zhang Bo-Yun Guo Geng Zhang Wang Chen 《Petroleum Science》 SCIE CAS CSCD 2022年第5期2297-2313,共17页
During deepwater managed pressure drilling(MPD),the gas kick may occur in abnormally high-pressure formations.If the traditional well control method is adopted,the treatment time is long and the advantage of early gas... During deepwater managed pressure drilling(MPD),the gas kick may occur in abnormally high-pressure formations.If the traditional well control method is adopted,the treatment time is long and the advantage of early gas kick detection of MPD is lost.The dynamic managed pressure well-control(MPWC)method can be used to rapidly treat gas kick in deepwater MPD.In this paper,considering the effect of large-variable-diameter annulus and complex wellbore temperature in deepwater drilling,a simplified model of non-isothermal gas-liquid two-phase flow was established for dynamic deepwater MPWC simulation.Using this model,the response characteristics of outlet flow and wellhead backpressure were investigated.The results indicated that the gas fraction,outlet liquid flow rate,pit gain and wellhead backpressure presented complex alternating characteristics when gas moved upwards in the wellbore due to the large-variable-diameter annulus.The outlet liquid flow rate would be lower than the inlet flow rate and the pit gain would decrease before the gas moved to the wellhead.The variation trend of the wellhead backpressure was consistent with that of the pit gain.When the gas-liquid mixture passed through the choke,the expansion or compression of the gas caused part of the choke pressure drop to be supplemented or unloaded,delaying the response rate of the wellhead backpressure.The wellbore temperature,borehole diameter and seawater depth had different effects on outlet flow rate,pit gain and wellhead backpressure.This research could provide a new idea for well control methods in deepwater managed pressure drilling. 展开更多
关键词 Gas kick Managed pressure well-control Gas-liquid two-phase flow Wellhead backpressure Outlet flow characteristics Deepwater managed pressure drilling
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Annular multiphase flow behavior during deep water drilling and the effect of hydrate phase transition 认领 引用 被引量:28
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作者 Wang Zhiyuan Sun Baojiang 《Petroleum Science》 SCIE CAS 2009年第1期57-63,共7页
It is very important to understand the annular multiphase flow behavior and the effect of hydrate phase transition during deep water drilling.The basic hydrodynamic models,including mass,momentum,and energy conservati... It is very important to understand the annular multiphase flow behavior and the effect of hydrate phase transition during deep water drilling.The basic hydrodynamic models,including mass,momentum,and energy conservation equations,were established for annular flow with gas hydrate phase transition during gas kick.The behavior of annular multiphase flow with hydrate phase transition was investigated by analyzing the hydrate-forming region,the gas fraction in the fluid flowing in the annulus,pit gain,bottom hole pressure,and shut-in casing pressure.The simulation shows that it is possible to move the hydrate-forming region away from sea floor by increasing the circulation rate.The decrease in gas volume fraction in the annulus due to hydrate formation reduces pit gain,which can delay the detection of well kick and increase the risk of hydrate plugging in lines.Caution is needed when a well is monitored for gas kick at a relatively low gas production rate,because the possibility of hydrate presence is much greater than that at a relatively high production rate.The shut-in casing pressure cannot reflect the gas kick due to hydrate formation,which increases with time. 展开更多
关键词 Annular multiphase flow phase transition natural gas hydrate gas kick
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