The member Ek2 continental shale oil in the Cangdong sag has currently entered the stage of beneficial development and pilot testing. In order to achieve economy of scale development, horizontal well drilling and completion large-scale volume fracturing technology are being comprehensively adopted. Accurate evaluation of rock mechanical parameters is crucial for hydraulic fracturing reconstructing of the member Ek2 continental shale oil in the Cangdong sag. A comparison has revealed significant differences in acoustic velocity between horizontal and vertical wells, limiting the application of homogeneous and isotropic rock mechanical parameter calculation methods in horizontal wells. To find a suitable calculation method for the rock mechanical parameters of the member Ek2 continental shale oil, a measurement plan for the anisotropic rock mechanical parameters of shale oil is designed. Measurement results show that the member Ek2 continental shale oil exhibits strong acoustic anisotropy. Through analysis, it is found that the development of laminations is the main reason for the strong acoustic anisotropy of the member Ek2 continental shale oil. Pressure, lithology, and organic carbon have a significant impacts on acoustic anisotropy, physical properties have certain influences, and oil content has a less pronounced influences. Based on core analysis, a method for characterizing the acoustic anisotropy and dynamic-static rock mechanical parameters of the member Ek2 continental shale oil is established. This method can provide accurate rock mechanical parameters for hydraulic fracturing reconstructing of shale oil in horizontal wells and has achieved good application results in practical use.

项目全生命周期管理是项目管理模式之一,其核心在于统筹项目策划决策、建设实施、生产运营等各个阶段,以实现项目全生命周期效益最大化.本文深入研究了近20个采用全生命周期管理模式的油气项目及其管理效果,分析了全生命周期管理模式在油气项目管理中的适用性及存在的问题,并提出了相关建议.

近年来水平井钻完井技术和分段分簇大型体积压裂技术大量应用于沧东凹陷E k2段陆相页岩油的开发,由于水平井的电性响应特征与垂直井存在明显差异,以往基于垂直井的页岩油测井评价技术的应用受到限制.通过方岩样不同方向和不同地层角度的柱塞样电阻率测量发现,Ek2段陆相页岩油具有非常强的电性各向异性.分析发现,纹层和层间微裂缝高度发育,是E k2段陆相页岩油整体呈现强电性各向异性的主要因素.且岩性、物性、含油性均影响电性各向异性的强弱,泥质含量、铁磁矿物含量、含油性增加,储层电性各向异性增强;物性变好,电性各向异性降低.在综合考虑纹层以及层间微裂缝影响基础上,提出了基于岩性、物性、含油性加权融合的电性各向异性系数计算方法,为页岩油水平井电阻率校正提供技术手段.

中国油气钻井业务形成了三大石油集团油服公司主导、多家民营企业拓展壮大的竞争格局.各油服企业之间成本和效率存在巨大差异.国际油服公司在中国境内的业务为中国油服企业树立了技术与管理方面的标杆.国企油服公司主要得益于来自母公司自有市场的保障,民营油服公司的市场占有率不高,国际油服公司的高附加值业务占比较大.持续降本增效是未来钻井业务发展的必然趋势,数字化转型是助力钻井业务高质量发展的重要手段.随着油气勘探开发对象向深层、低渗透、非常规领域转移,中国钻井业务在管理机制、科技创新、技术服务等方面与规模有效勘探开发需求不适应的问题日趋突出.中国企业钻井业务发展存在面对复杂勘探开发对象的技术适应性有待提升、缺乏合理的共享共赢机制、钻井企业高附加值业务比例偏低等主要问题.建议完善科技研发与应用机制,在非常规油气项目中建立互利共赢发展模式,探索绿色低碳可持续发展模式.

以大港油田乌马营地区YGXX井为代表的二叠系石盒子组深层低孔特低渗致密储集层目前勘探程度较低,没有形成配套的测井评价方法.针对乌马营二叠系致密砂岩含气储集层,利用岩心常规分析数据与测井曲线敏感参数相结合,优化储集层参数计算模型,并引入流动单元概念开展储集层有效性评价,建立了储集层有效性评价图板及重新计算渗透率、孔隙度比值(K'/φ')与电阻率比值(RT/Rsh)交会图板,形成了一套致密砂岩气层的测井解释评价技术,填补了该层系致密砂岩储集层测井评价方法的欠缺.在乌马营地区应用6井次效果明显,解释符合率上升至82.4％.

储层构型单元研究是沉积学和储集层地质学一个重要的研究方向,测井和地震资料是最直接的基础资料.对大港油田7、8、9级储层构型单元的测井资料划分方法进行探讨,进行构型单元测井定性划分标准的判定;并在此基础上研究了利用测井多参数交会自动识别储层构型单元的方法;对构型单元的剩余油分布进行分析.通过与岩心井构型单元划分对比,验证了方法的有效性,解决了历史上测井资料划分8、9级储层构型单元的困难.

港北潜山石炭—二叠系地层煤、碳酸盐岩、砂岩等岩性交互发育,且多为过渡岩性,有效的岩性识别直接制约物性和含油性的评价,如何有效评价港北潜山岩性是测录井综合评价需要解决的重要问题之一.针对港北潜山上古生界复杂储集层岩性特征开展研究,形成了一套测井、录井资料相结合,适合港北潜山上古生界碎屑岩储集层的岩性评价技术,提高了潜山复杂储集层的岩性识别能力,为储集层有效性及含油性的评价奠定了基础,为油田增储上产提供了技术保障.

针对中低孔隙度渗透率储层钻井液侵入特征的研究较少,没有形成有效的规律性认识.提出了利用5岩心联测实验进行钻井液侵入规律研究的新思路,将动态联测实验数据与实际测井资料相结合,形成了中低孔隙度渗透率储层钻井液侵入规律认识.并建立了不同孔隙度渗透率条件下中低孔隙度渗透率储层钻井液侵入速率计算模型,进而得到钻井液侵入储层深度.在研究区进行了应用,为测井解释、射孔参数优化设计和压裂施工设计提供了指导性建议.

Influenced by the brine drilling liquid invasion,the electrical resistivity logging responses are prone to deviate from the true resistivities of the formations.In order to accurately realize the invasion correction of the responses of the array induction logging,based on the water-oil two-phase flowing theory and litho-electric theory,according to the classifications of the formation porosity-permeability ratio (~/K) scope,with the help of the numerical simulating method,the invasion dynamic evolution process of the brine drilling liquid and its effects on the array induction logging responses were acquired under the different physical properties.The invasion simulation results show that the invaded profile characteristics are mainly influenced by the reservoir property and the invasion time,simultaneously,the invasion time and invasion depth are the key controlling factors on the array induction logging responses.According to dynamic invasion rules and considering the pressure difference,~/K and invasion time and so forth,the correcting method of the time-lapse resistivity simulation was established.The actual corrected results of the array induction logging show that the calculated water saturation values by the resistivity from the correcting method are in consistent with those by the sealed coring well measurement values,so the feasibility and accuracy of this correcting method are verified.

近年来随着中国经济的持续快速发展,人们对资源和能源的需求也在不断增加.油气回收技术是一种变废为宝的节能技术,同时它也能在一定程度上避免自然环境被装车过程挥发的油气所破坏.作为现代社会发展的重要影响,结合中国的"十九大"节能规划和石油消费情况和如今中国的石油和天然气工业的发展,可以看出石油和天然气的储存和运输的发展规模越来越大,因此油气回收技术的全面应用是必然的选择.本文主要就固定顶油罐与油气回收集成工艺研究进行研究分析,并提出一些个人观点,以供参考.

地层倾角测井在裸眼井中他侧地层面空间位置，通过对地层倾角和倾斜方位的测量对地质问题进行研究，可以为油天勘探开发提供指导。本文在介绍地层倾角测井和油田压裂技术的基础上，分析了测井技术的实际应用。

It is normal to see that some water occurs in low permeability gas reservoir which influences the gas supply ability.The paper builds a model according to the pore structure,studies the occurrence models of water in different pores and the mechanism that influences the gas flows.The paper also studies the water breakthrough condition in the gas reservoir and the influence to the gas supply ability by physical simulation method.The result shows that there are two types of water in pores,movable water and residual water,which are both determined by reservoir physical properties and gas drive pressure.Movable water mainly occurrs in the fracture and big pores,and the residual water has many occurrence models in differential pores.The result also shows that when the water body is bigger than 6.0PV in gas reservoir,it′s easy to break into the formation.After wetting,some water is remained in the pore just as residual water occupying part or whole flow path.This will make the reserves far from the well and difficult to be employed,so it will influence development of the low permeability gas reservoir.

美国是世界天然气三大消费区域之一,并拥有全球最大的天然气市场。管道运输公司的专业化催生了天然气市场中心,其能有效地协调美国天然气的供需和转运,使得市场平稳运行。美国对管道运输的监管以及天然气市场中心对中国天然气工业的发展具有重要的借鉴作用。由于社会对清洁能源的需求,我国天然气工业面临重大的机遇,但同时因为多方面原因,需要加速天然气工业的发展,从美国的经验来看,未来几年,我国天然气工业应加强多元开发、重点监管、放开竞争、调整结构几方面的工作。