以中拐凸起下二叠统佳木河组砾岩气藏的储层为研究案例,在岩芯观察、光学显微镜和全能谱扫描电子显微镜观察的基础上,分析砾岩储层中浊沸石的发育特征,探讨其成因机制,并分析浊沸石充填、溶蚀及含量变化对储层物性的影响,得到如下认识.1)浊沸石不但充填在砾岩、安山质砾石以及颗粒内原生气孔中,而且大量分布在砾石骨架颗粒之间,占胶结物含量的80％以上,与研究区基性和碱性火山质母岩成分密切相关.2)研究区沸石成因有内生和外生两种类型,内生作用形成的沸石充填于安山质砾石内部的原生气孔中,与喷出岩的低温热液作用或接触交代作用有关;外生作用类型的沸石是含玻璃质较高的各种火山熔岩和凝灰岩受碱性水溶液的蚀变作用,发生脱玻璃化后形成,充填在砾石骨架的孔隙中,使储层发生致密化,其中典型的是风化淋滤作用形成的沸石.3)沸石对研究区储层有重要影响,早期碱性环境下,大量沸石的充填和胶结使储层发生致密化的消极作用,后期酸性环境下,部分沸石溶蚀产生次生孔隙的积极作用,以大量充填于砾间孔中而产生致密化的消极作用为主.总之,沸石类矿物的胶结程度、含量及后期的溶蚀程度控制着储层的储集性能.

新疆油田K21井三工河组于2013年获得油气勘探突破.但由于生产初期,射孔投产的两个小层在流体性质、物性方面的差异,产生了两小层是否属于同一个油藏、大规模改造后为何长期低产以及有无进一步增产的潜力等问题.通过对该井测试、试采资料的综合应用,在客观分析地层流体、压力系统、储层参数的基础上,较为完满地解决了上述问题.

The statistics and expatiation of gross resource amounts, distribution, proved reserves and utilization of natural gas in China show that China is rich in gas resources, but the per capita amount of the resources is far below the average of the world. Their extremely uneven distribution allows to be found mostly in central and northwestern China and its coastal continental shelves nowadays, of which the discovery in eastern China is higher than that in western China for the reasons of great buried depth, big difficulty of development and low proved degree. The natural gas accounts for low proportion of domestic energy consumption and is mostly used as industrial fuel and city gas and in chemical industry and power station. The prediction of future demand and supply of natural gas suggests that China needs for importing natural gas in future. A series of countermeasure are proposed in order to deal with these issues.

： Take the Karamay formation conglomerate oil pool as an example， this paper proposed the determining guide for calculating parameters of highly heterogeneous conglomerate oil pools， and an analysis method of net integrated calculation．Using conglomerate oil pool relating data， including its logging interpretation， sedimentary microfacies， spatial distribution of reservoir parameters and corresponding development dynamic analysis data， the network structural database for reserve calculation of conglomerate oil pools has been established． Again， the oil-in-place， recoverable reserves， residual recoverable reserves and recovery percent of each layer of Upper Karamay formation in that area have been calculated． The paper gives important succeeding pay zones and their production potential horizons for production stabilization in oilfield development， such providing corresponding geological basement to improve the effect of oilfield development．

： By means of the analysis for various facies markers， this article discussed the sedimentary facies type， microfacies buildups and their characteristics of Upper Karamay formation reservoir in the District No．8 of Karamay oilfield， based on core analysis， logging and production dynamic data． It is considered that the Upper Karamay formation in this area belongs to fan-delta sediments， which was formed by alluvial fan or braided stream directly entering lacustrine． The lower segment(S1 sandstone layer) is fan-deltaic deposits． A series of microfacies types have been differentiated， such as subaqueous distributary channel， inter-channel bottom land， channel-mouth bar， sheet sand and braided distributary channel， etc． On the basis of substrata division and vertical evolutionary conditions of the 10 substrata， 19 single sand-layers from S5-S1 have been analyzed．

侧钻水平井技术是一项新型的油田开发技术,但是,侧钻水平井能否获得好的效益,关键是井位筛选.作者根据侧钻水平井的特点及目前的工艺水平,结合砾岩油藏地质特征、剩余油分布状况及开发现状,提出了侧钻水平井试验区、目标区、目的层以及侧钻基础井位的优选原则.通过在百口泉油田实际应用表明:该方法实用有效,筛选出的井位实施后获得了很好的开发效果,为侧钻水平井技术在老区的应用提供了一套有效的井位优选方法.