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| 1 | Mechanism of heavy oilrecovery by cyclic superheated steam stimulation显示文摘 | XU Anzhu MU Longxin FAN Zifei | 2013 | Journal ofPetroleum Science and Engineering2013，111，21： | 1 |
| 2 | Channel Sandstone Architecture Characterization by Seismic Simulation显示文摘To describe the distribution of sandstone reservoirs between wells finely,this paper takes the sandstone reservoir of Layer Nm II-4 in Qinhuangdao 32-6 Oilfield for example,and uses the seismic forward simulation and well loggings to study the channel sandstone reservoir. Under the guidance of the modern rivers and outcrops sandstone distribution pattern,the predicting limitations of the seismic forward simulation about channel sandstone boundaries such as mudstone interlayer between channel sandstone and elevation distance between adjacent channel sandstone are clear. The research shows that the mudstone interlayer can be described by seismic forward simulation seismic when the mudstone interlayer is thicker than 2 m and the channel sandstone is thicker than 10 m because of the appearance of the seismic peak when the main frequency of seismic data is nearly 60 Hz. And the elevation distance between adjacent channel sandstone can be described by the seismic forward simulation when elevation distance is longer than 6 m and the channel sandstone is thicker than 10 m because of the appearance of the seismic peak. And the seismic waveform features of single channel sandstone boundaries such as elevation distance between channels,overbank sandstone and abandoned channels. Under the study mentioned above,the single channel boundaries are described in Layer Nm II-4 of Qinhuangdao 32-6 Oilfield,and the predicting boundaries are confirmed by the chemical tracers. The results show that the channel sandstone reservoir architecture characterization can be improved by the seismic forward simulation. | Hongwei Liang Xiaoqing Zhao Longxin Mu Zifei Fan Lun Zhao Shenghe Wu | 2019 | Journal of Earth Science2019，30，4： | 1 |
| 3 | Study on characteristics of well-test type curves for composite reservoir with sealing faults显示文摘The pressure response for the composite reservoirs with a sealing fault locating in inner and outer region is different,which neglected by previous researchers,would cause significant errors during well-test interpretations.Based on seepage theory,a well-test model of two-region radial composite reservoir with infinite outer boundary has been built in this study considering wellbore storage and skin effects.The solutions for this model and characteristics of the type curves have been analyzed by applying the method of mirror image,Laplace transformation and superposition principle,including a straight fault,a perpendicular fault and parallel faults cases.The study shows that the dimensionless pressure derivative curves would be obviously different in two cases:the well to fault distance is larger,and smaller than the half length of the inner-region radius.Therefore,type curves are presented with reasonable parameters to analyze the distance effect on the dynamic pressure response.The results in this study are of great significance。 | Qiguo Liu Heng Lu Longxin Li Aiting Mu | 2018 | Petroleum2018，4，3： | 1 |
| 4 | Mechanism of Heavy Oil Recov- ery by Cyclic Superheated Steam Stimulation 显示文摘 | Anzhu Xu Longxin Mu Zifei Fan Xianghong VVM Lun Zhao Bing Bo Ting Xu | 2013 | Journal of petroleum Science andEngineering2013，，： | 1 |
| 5 | Auto-optimization of production-injection rate for reservoirs with strong natural aquifer at ultra-high water cut stage显示文摘Based on the optimal control theory and taking the production law of reservoirs with strong natural aquifer as the basic constraint, a mathematical model of liquid production for such reservoirs in the later stage of development is established. The model is solved by improved simultaneous perturbation stochastic approximation algorithm(SPSA), and an automatic optimization software for liquid production is developed. This model avoids the disadvantage of traditional optimization methods that only focus on the maximum value of mathematics but ignore the production law of oilfield. It has the advantages of high efficiency of calculation, short period and automatic optimization. It can satisfy the automatic optimization of liquid production in later stage of oilfield development. The software was applied in the oilfield development of D oilfield, Ecuador in South America, and realized the automatic optimization of liquid production in the later stage of oilfield development. | LEI Zhanxiang MU Longxin ZHAO Hui LIU Jian CHEN Heping JIA Fenshu ZHOU Zhanzong | 2019 | Petroleum Exploration and Development2019，46，4： | 0 |
| 6 | Development characteristics, models and strategies for overseas oil and gas fields显示文摘Based on about 20 years of accumulated experience and knowledge of oil and gas field development in overseas countries and regions for China's oil companies, the development features, ideas, models and plan designing strategies of overseas oil and gas fields were comprehensively summarized. Overseas oil and gas field development has ten major features, such as non-identity project resource, diversity of contract type, complexity of cooperation model, and so on. The overseas oil and gas field development aims at the maximization of production and benefit during the limited contract period, so the overseas oil and gas field development models are established as giving priority to production by natural energy, building large-scale production capacity, putting into production as soon as possible, realizing high oil production recovery rate, and achieving rapid payback period of investment. According to the overseas contract mode, a set of strategies for overseas oil and gas field development plans were made. For tax systems contracts, the strategy is to adopt the mode of 'first fat and then thinner, easier in the first and then harder', that is, early investment pace, production increase rate, development workload and production were decided by the change of tax stipulated in the contract. For production share contracts, the strategy is to give priority to high production with a few wells at a high production recovery rate to increase the cost-oil and shorten the period of payback. For technical service contracts, the strategy is that the optimal production target and workload of the project were determined by the return on investment, so as to ensure that the peak production and stable production periods meet the contract requirements. | MU Longxin FAN Zifei XU Anzhu | 2018 | Petroleum Exploration and Development2018，45，4： | 0 |
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