凝析气藏工业气流量计算方法

国土资源部颁发的《DZ/T 0217-2005 石油天然气储量计算规范》给出了我国东部地区气藏不同埋藏深度下估算的工业气流标准,但该标准没有考虑气藏储渗条件的影响,也没有明显体现凝析油成分对工业气流的影响,不适合凝析气藏的对照使用。根据投入产出平衡原理,提出了凝析气藏工业气流计算模型,以我国西部凝析气藏为例,根据目前各项参数测算了相应的工业气流,绘制了工业气流图版。提出的方法也适用于含硫化氢等其他复杂成分气藏工业气流的计算。     

浅谈薄储层测井解释的影响因素及对策

测井解释是在实际开采之前,对于测井的信息进行再确定,将测井和地址信息之间的对应关系和应用关系进行更加详细的解说.这需要专业的测量人员运用一定的手段,将测井的信息加工成地质信息,测井的资料记录的相应数据大部分是关于物理的数据,如电阻率,自然电位等等,这些都可以成为野外勘测的地质依据,而传统的测井资料的纵向分辨率一般来说相应较低,这就为薄储层测井所产生的响应设置了一定的响应障碍,因此在进行解释的过程中,应该注重解释结果的准确性等.     

A review:Photonics devices,architectures,and algorithms for optical neural computing

The explosive growth of data and information has motivated various emerging non-von Neumann computational approaches in the More-than-Moore era.Photonics neuromorphic computing has attracted lots of attention due to the fascinating advantages such as high speed,wide bandwidth,and massive parallelism.Here,we offer a review on the optical neural computing in our research groups at the device and system levels.The photonics neuron and photonics synapse plasticity are presented.In addition,we introduce several optical neural computing architectures and algorithms including photonic spiking neural network,photonic convolutional neural network,photonic matrix computation,photonic reservoir computing,and photonic reinforcement learning.Finally,we summarize the major challenges faced by photonic neuromorphic computing,and propose promising solutions and perspectives.     

Functional Materials for Memristor-Based Reservoir Computing: Dynamics and Applications

The booming development of artificial intelligence (AI) requires faster physical processing units as well as more efficient algorithms. Recently, reservoir computing (RC) has emerged as an alternative brain-inspired framework for fast learning with low training cost, since only the weights associated with the output layers should be trained. Physical RC becomes one of the leading paradigms for computation using high-dimensional, nonlinear, dynamic substrates. Among them, memristor appears to be a simple, adaptable, and efficient framework for constructing physical RC since they exhibit nonlinear features and memory behavior, while memristor-implemented artificial neural networks display increasing popularity towards neuromorphic computing. In this review, the memristor-implemented RC systems from the following aspects: architectures, materials, and applications are summarized. It starts with an introduction to the RC structures that can be simulated with memristor blocks. Specific interest then focuses on the dynamic memory behaviors of memristors based on various material systems, optimizing the understanding of the relationship between the relaxation behaviors and materials, which provides guidance and references for building RC systems coped with on-demand application scenarios. Furthermore, recent advances in the application of memristor-based physical RC systems are surveyed. In the end, the further prospects of memristor-implemented RC system in a material view are envisaged.     

Evaluation and selection of hedging policies using stochastic reservoir simulation

A hedging policy is characterized by three parameters, namely, starting water availability (SWA), ending water availability (EWA) and hedging factor (HF). The effects of these three parameters on the reservoir performance indicators have been evaluated and discussed for a southwest monsoon-dependent within-year reservoir system in southern India. For the performance evaluation, synthetically generated periodic inflow sequences from a periodic autoregressive model have been used. Quite a number of the 1800 hedging policies considered for the reservoir system, yield a better overall performance compared to the standard operating policy (SOP). Reliability, Resilience and vulnerability are found to increase with SWA for a specified EWA. On the other hand, all these performance indicators are found to decrease with EWA for a specified SWA. Hence, it is desirable to start the hedging at reasonably high SWA. All performance indicators remain practically constant at higher ranges of EWA for a given SWA. If hedging is started when there is enough water in storage, reliability, resilience and average deficit increase with degree of hedging, whereas vulnerability decreases significantly up to a hedging factor of 0.3. An interactive computer program has been developed for the selection of compromising hedging policies, and its usefulness has been discussed.     

论三峡水库泥沙淤积的控制——处理三峡水库泥沙的策略与措施

本文专门论述三峡水库泥沙淤积的控制，它是解决三峡工程泥沙问题的关键之一，首先介绍了根据多年研究，提出的利用水库长期使用方法，控制库容淤积，从而能保证绝大部分防洪库容和调节库容。其次提出按照水库积和回水的相互作用，利用防洪限制水位控制库尾回水抬高、筘辊重庆市洪水位抬高，以尽可能减少中、后期淹没，第三、着重阐述了在三峡水库泥沙研究中为了增加水库航深，首次提出航运控制调度的概念，以限制枯水期水位消落，增加其航深，在此基础上从水库淤积控制角度论述了三峡水库运用水位的选择。     

关于青狮潭水库向漓江旅游有偿供水问题之我见

漓江枯水季节不能全程通航，影响了旅游的发展。１９８７年以来，由青狮潭水库放水入漓江补充漓江水量，辅以适当的航道疏浚，解决了近期桂林至阳朔间的旅游、货运通航问题。由此而带来的经济效益估算累计１．５亿元．但是供水至今还是无偿的，有偿供水应该尽快得以实施。     

�ز����еļ�����Ҫ����

本文对“保护油气层防止地层损害”这一课题中的若干重要概念进行了探讨。对如何给地层损害下科学的定义。通过射孔完井电模拟试验,证明了某些情况下,射孔对地层的损害比钻井损害更为严重。目前普遍采用矿场试井法所确定的表皮系数作为地层是否受损的差别标准是不够确切的。     

准噶尔盆地天然气赋存形式及气藏类型

本文根据现有资料对准噶尔盆地天然气的赋存形式及气藏类型进行了初步总结。认为盆地的天然气有三种赋存形式,即溶解气、气顶气和凝析气。主要分布在盆地西北缘和台3断块内。按控制气藏形成的主要因素,可将区内气藏分为构造气藏、岩性气藏和火成岩气藏等三类。     

松辽盆地北部扶,杨油层砂岩的成岩作用与储层性质研究

本文根据近300口井岩心分析,13口井168块薄片、铸体薄片、砂岩中粘土矿物X射线衍射、扫描电镜及阴极发光等分析,经综合研究认为,扶余、杨大城子油层砂岩主要经历了中成央阶段,其最大埋藏深度为1000～2300m,相应镜质体反射率力0.5～1.38％,估计成岩温度为90～120℃。砂岩成岩事件计有:碎屑伊利石转化、球粒状菱铁矿、铁白云石、机械压实、自生石英、蒙皂石、蒙皂石—伊利石、蒙皂石—绿泥石、长石溶解、高岭石、自生伊利石、自生长石、长石钠长石化、绿泥石、重晶石、浊沸石、无铁方解石和浊沸石溶解等。由于上述砂岩的成岩历史,决定了储集层质量具中等孔隙度(10～20％)与低渗透性(0.01×10~3～50×10~(-3)μm~2)的特点。次生孔隙发育段可改善储集层性质。