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特种油气藏

特种油气藏

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Special Oil & Gas Reservoirs
本刊是国内唯一一份专门报道特种油气藏新理论、新技术、新工艺、新方法、新动向的国家级科技期刊。“特种油气藏”即“非常规油气藏”，系指稠油、高凝油、低渗秀和岩浆岩、变质岩、裂缝、古潜山及其它一切特殊油气藏。凡是反映与特种油气藏的生成、产状、分布规律、勘探与开发方法、储运加工、生态环境、科技信息、综合论述等有关的科技论文均可向本刊投稿。同时征集学术活动、会议简讯等信息，并竭诚为各单位刊登广告和各种技术转让、咨询服务等。
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  • 发文量：4933
  • 被引量：3194
  • H指数：3
  • 开始收录时间：-
  • CNKI综合因子：-
  • 维普期刊影响因子： 2.66
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  • 国内刊号/CN：21-1357/TE
    国际刊号/ISSN：1006-6535
  • 发行周期：双月刊
    邮发代号：8-173
  • 主管单位：中国石油天然气集团公司
    主办单位：中油辽河油田公司
特种油气藏-联系信息
  • 主编：李晓光
  • 电话：0427-7823579 7820262
  • 邮箱：-
  • 地址：辽宁省盘锦市辽河油田分公司勘探开发研究院
  • 邮编：124010
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特种油气藏 >2023年第5期

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  • 摘要：通过对滨海断鼻沙三段、歧北斜坡沙二段和滨海斜坡沙一段流体包裹体均一温度分布特征、烃包裹体产出特征、包裹体和沥青的成因特征的分析,划分出研究区油气成藏期次、成藏时间以及油气藏成因的控制因素,认为研究区具有“两期充注、先油后气,差异聚集、高油低气的油气成藏模式；油藏分布序列受生烃演化、构造发育的配置关系控制；受大面积分布的岩性圈闭控制,多期砂体叠置,差异聚集是油气藏分布倒置的主要原因.%This paper analyzes the distribution of homogenization temperature of fluid inclusion, the occurrence of hydrocarbon inclusion , and the genesis of inclusions and bitumen for Es3 in Binhai fault nose, Es2 in Qibei slope and Es, in Binhai slope; and discriminates hydrocarbon accumulation period, timing and control factors. It is concluded that the study area has the characteristics of " two stages of hydrocarbon filling, oil before gas, differential accumulation, and oil higher than gas" ; reservoir distribution is subject to evolution of hydrocarbon generation, structure development configuration, and widespread lithologic traps; superimposed multistage sands and differential accumulation mainly contributed to inversed reservoir distribution.
  • 摘要：综合大量岩心分析,多口井的测井、录井岩性及野外露头等资料,对塔里木盆地石炭系卡拉沙依组砂泥岩段进行了地层对比及地层接触关系的研究,并对该段的沉积相类型及其平面展布进行了系统分析.研究表明:卡拉沙依组砂泥岩段在盆地大部分地区发育砂泥岩沉积,塔东南地区沉积物较粗,塔西南地区砂泥岩中含有膏盐岩,并且该段与上覆含灰岩段地层为不整合接触关系；该段在盆地大部分地区应是以河流—三角洲的陆相沉积为主,向西南方向直到巴楚及其以西地区才开始发育潮坪、潟湖—开阔台地的海相沉积.塔里木盆地在该时期总体为东高西低的古地貌格局,其物源来自盆地东侧方向.%The sandstone and mudstone section in the Carboniferous Katashayi formation of Tarim Basin has been studied and analyzed for stratigraphic correlation, strata contact relationship, and the types and distribution of sedimentary facies based on a huge data of core observation, outcrop, wireline logging, mud logging and outcrops. The study shows that the Kalashayi formation had developed interbedded sandstone and mudstone section across most part of the basin; the sediments are coarse toward southeast and contain gypsum - salt rock in the southwest; the sandstone and mudstone section is in unconformable contact with overlying limestone formation and dominated by continental sedimentation of fluvial - delta facies in most of the basin, and there starts to occur marine facies of tidal flat, lagoon and open platform from Bachu to the southwest. The palaeogeomorphology of Tarim Basin in this stage was high in the east and low in the west, with sediment source coming from the east of the basin.
  • 摘要：Dissolved gas will come out from oil in producing process when flowing pressure is lower than bubble point pressure, thus appeared three - phase flow in oil wells of water flooding reservoir, and oil production will decrease with the drop of flowing pressure , showing inversion of IPR curve. A newly established inflow performance relationship can reasonably match and describe the inversion, judge whether there will be an inversion or inflection point on IPR curve, and calculate the minimum reasonable flowing pressure in oil wells. The new IPR involves most of the classical IPR equations, such as Vogel and Fetkovich equations and their generalization formula, so it is highly practical.%油藏开采过程中,当流动压力低于饱和压力时,溶解于原油中的天然气析出,水驱油藏油井出现三相渗流,部分油井受其影响,产量出现随着流动压力降低而下降的现象,表现为IPR曲线发生倒转.利用新建立的油井流入动态关系方程,能够合理地拟合和描述这种倒转现象,并可以判断油井IPR曲线是否出现倒转现象或具有拐点,计算油井的最低合理流动压力.新建立的IPR方程通式囊括了大部分经典的IPR方程,包括经典的Vogel方程和Fetkovich方程及其推广式,具有较强的实用性.
  • 摘要：A model of faults control action on oil and gas distribution is set up based on coruTol mechanism research and faults development characteristics in the Xinli oilfield of Jilin province. The distribution of remaining oil under the impact of faults is studied by applying multidisciplinary methods. Adjustment wells are placed based on well pattern and remaining oil near faults. As guided by the research result, 76 wells have been placed, with average single well daily mass production of 11. 8 t/d, daily oil of 6. 5 t/d, which is 5. 4 times of old wells. This inspiring result provides a new way of producing remaining oil in high water cut period.%针对吉林新立油田断层发育的特点,以断层对油气分布的控制机理研究为基础,建立了断层对油气富集的控制模式；综合应用多学科技术手段,研究了断层影响下的剩余油分布规律；结合断层附近现有井网类型和剩余油状况,优化确定了合理的高效调整井布井方式.根据研究成果指导实际布井76口,平均单井日产液为11.8 t/d,日产油为6.5 t/d,其日产油是老井产量的5.4倍,取得了较好的效果,为高含水期挖掘剩余油潜力探索出一条新的技术思路.
  • 摘要：国内一些油田已陆续进入聚合物驱后续水驱阶段,亟待研发聚合物驱油后进一步提高采收率技术.为此,运用物理模拟方法,研究了不同驱油剂的渗流能力及聚合物驱油后驱油效果.实验结果表明,泡沫复合体系阻力系数及残余阻力系数最高,流度控制作用最强,扩大了波及体积,同时由于表面活性剂的加入,进一步提高了驱油效率,驱油效果较好,聚合物驱油后采收率提高10.6个百分点.%Some oilfields in China have entered the stage of subsequent water flooding after polymer flooding, and it is in urgent need to develop EOR technology after polymer flooding. Therefore physical simulation has been performed to study the percolation capacity of different oil displacement agents and the oil displacement efficiency of polymer flooding. The experiment results show that foam complex system has the highest resistance coefficient and residual resistance factor, the strongest control on fluid mobility, expands swept volume, and further improves oil displacement efficiency by adding surfactant. The recovery factor is improved by 10. 6% after polymer flooding.
  • 摘要：Exploration drilling shows that the reservoirs in the Qixia formation in west Sichuan Basin have complex lithology, diversified reservoir spaces, severe reservoir heterogeneity and anisotropy. It is difficult to identify reservoir and fluid property by logging. Based on analysis of reservoir characteristics, this paper summarizes the log response characteristics of fracture - pore ( hole) dolomite reservoir and fractured limestone reservoir, analyzes four influencing factors on fluid property discrimination, including lithology , physical property, reservoir space type and water salinity, and puts forward acoustic - neutron porosity overlaying method and wireline formation test method to identify reservoir fluid property for the study area.%川西地区栖霞组储层的岩性复杂,储集空间类型多样,储层非均质性与各向异性较强,对其进行测井识别与流体性质判断较困难.在分析研究区储层基本特征的基础上,总结了裂缝-孔(洞)型白云岩储层和裂缝型灰岩储层的测井响应特征,分析了岩性、物性、储集空间类型与地层水矿化度等4种影响流体性质判别的因素,提出了声波-中子孔隙度重叠法与MDT测试法2种适合研究区储层流体性质判别的方法.
  • 摘要：The SZ oilfield has entered high water cut stage in its mid - late life of oilfield development. It is necessary to further describe reservoir distribution. This paper comprehensively studies the stratigraphy, base level cycle interface, flooding surface genesis of the lower member of Dongying formation in SZ oilfield by using core, logging, seismic and production performance data, and establishes a sequence stratigraphic framework of medium - short term cycles. Isochronous stratigraphic correlation is conducted for short - term sequences; meanwhile sedimentary microfacies are divided for single well and described for every subunit. A geological prediction model is built by applying sequence stratigraphy and facies - constrained technique to finely characterize reservoir heterogeneity, and history matching is conducted for reservoir pressure and water cut through numerical simulation. The result matches well with actual oilfield production data, manifesting that sequence stratigraphy and facies - constrained modeling technique can be used to provide reliable geological basis for integral adjustment and potential tapping in the mid - late life of oilfield development.%SZ油田已进入开发中后期的高含水阶段,为进一步描述储层分布规律,以高分辨率层序地层学理论为基础,采用岩心、测井、地震资料和生产动态资料等方法,对SZ油田东营组下段的层序地层及基准面旋回界面、洪泛面的成因类型进行综合研究,建立了中短期旋回层序地层框架.在此基础上进行短期层序为单元的等时地层对比,同时划分单井沉积微相并描述小层单元内沉积微相特征.应用层序地层学和相控储层建模技术,建立能精细表征储层非均质特征的地质预测模型,并利用油藏数值模拟对油田压力、含水率进行历史拟合,拟合结果与油田实际生产数据吻合较好,表明利用层序地层学及相控地质建模技术可为油田中后期综合调整及挖潜提供可靠的地质依据.
  • 摘要：通过分析区块开发形式和存在的问题,进行了出砂冷采后多种开发方式的标准筛选以及此技术在该油藏的适应性研究,结合火驱物理模拟实验,明确了该区块进行火驱的可行性；利用数值模拟技术,优选了火驱合理的井网方式和注气参数.2007年开始,通过开展现场试验,见到了较好的效果,为提高区块采收率提供了技术支持.%The development schemes after cold production with sand have been screened and their applicability has been studied for the Taobao heavy oil reservoir based on analysis of the development situation and existing problems. It has been determined through physical simulation tests that in - situ combustion is feasible for the reservoir. Rational well pattern and air injection parameters have been optimized through numerical simulations. Since 2007, field tests have achieved satisfactory result, and provided technical support for improving reservoir recovery factor.
  • 摘要：研究了带形地层中水平井方位对产能和采收率的影响.产能方面,在对比分析齐成伟导出的带形地层中横向和纵向双分支水平井拟三维产能公式的差异后,提出了“纵横阻力比”的概念,研究表明带形地层中纵向水平井的产能远大于横向水平井；采收率方面,在水平井激发的三维渗流场可近似为等长裂缝激发的二维渗流场的情况下,根据齐成伟导出的带形地层中横向和纵向双裂缝复势公式绘制了流网图,流网图显示带形地层中纵向水平井的采收率远小于横向水平井.%This paper meticulously studies productivity and recovery factor in banded formation from a new perspective, the orientation. The concept of "aspect ratio of seepage resistance" is proposed after analyzing pseudo 3D productivity formulae of transverse horizontal well and longitudinal bilateral horizontal wells derived by Qi Chengwei. The study shows that the productivity of longitudinal horizontal well is much higher than that of transverse horizontal well; while the flow net diagram constructed according to the complex potential formulae of transverse and longitudinal bilateral fractures derived by Qi Chengwei under the condition that a 3D seepage field excited by horizontal wells is approximate to a 2D seepage field excited by fractures with length equal to horizontal wells indicates that the recovery factor of longitudinal horizontal well is much less than that of transverse horizontal well in banded formation.
  • 摘要：直井压裂是1种开发煤层气的重要方式,如何准确模拟直井压裂后的排采规律是数值模拟研究的难点.根据压裂直井和两分支水平井流线的相似性,提出了1种等效模拟方法,推导出了直井压裂缝传导系数和虚拟多分支水平井传导率之间的数量关系,根据该关系式等效模拟直井压裂后的排采规律.以沁水盆地南部一口压裂气井FZ-005井为例,进行实验结果对比,证明该等效方法符合实际应用需要.%Vertical well fracturing is an important method in coalbed methane development, and how to simulate the trend of water discharge and gas production after vertical well fracturing has been a big issue in numerical simulation research. An equivalent simulation method has been proposed based on the similarity of stream lines of fractured vertical well and dual lateral horizontal well. The quantitative relationship between the conductivity coefficients of vertical well fractures and virtual multi - lateral horizontal well has been derived, on which basis the water discharge and gas production pattern of fractured vertical wells has been simulated. Fractured gas well FZ - 005 in southern Qinshui Basin was taken as an example and has verified that the equivalent method is feasible.
  • 摘要：针对超稠油油藏开展火烧油层技术可行性研究的需要,利用自行设计研制的火烧油层物理模拟实验装置,分别采用超稠油、特稠油、普通稠油开展了火烧油层燃烧基础参数物理模拟实验.对比了不同类型稠油门槛温度、燃料消耗量等燃烧基础参数,结合产出油组分及温度场发育特征,分析了超稠油燃烧基础参数特征.研究认为,超稠油油藏开展火烧油层试验是可行的,超稠油门槛温度、燃料消耗量等燃烧基础参数值均高于其他类型稠油；稠油火烧油层的驱油效率与黏度相关,黏度越大其燃料消耗量越大,其最终的驱油效率相对较低；火烧后原油性质发生了明显改善.%A physical simulation system has been designed and developed to study the feasibility of in - situ combustion for super heavy oil reservoirs. Physical simulation experiments have been carried out for the basic parameters of in - situ combustion by respectively using super heavy oil, extra heavy oil and conventional heavy oil. Basic combustion parameters such as threshold temperature and fuel consumption have been compared for different types of heavy oil. The parameter characteristics of super heavy oil combustion have been analyzed combining with produced oil composition and temperature field characteristics. It has been concluded that in - situ combustion is feasible for super heavy oil reservoirs, whose threshold temperature and fuel consumption are higher than other types of heavy oil. The displacement efficiency of in - situ combustion is related to oil viscosity. The higher the viscosity is, the bigger the fuel consumption is, and the lower the ultimate displacement efficiency will be. Crude oil properties have been substantially improved after in - situ combustion.
  • 摘要：Well F19 has $212. 7 mm openhole section of 2 445 m. Its formation pressure system is obviously different from adjacent wells, coexisting with high pressure bitumen formation, salt water layer, and thief zones. The safe density window of drilling fluid is narrow for the well. During drilling operations, some downhole problems such as bitumen contamination, lost circulation and salt water contamination have been experienced. Bitumen poses a great threat to drilling safety, and damages the rheological property of drilling fluids. Drilling fluids may become jelly and can not be recycled when seriously contaminated. On the basis of lab experiments , diesel - mixed drilling fluids have been used to prevent and treat bitumen contamination. For lost circulation, two slurry formulations have been optimized, which are bridge plug and solidification plug. Concrete measures and contingency plan have been worked out in regards to drilling fluids, hanging tools and operations to ensure liner running to bottom hole. Some abnormal situations such as sticking and mud loss had happened during liner running, but finally the liner was successfully set to the bottom hole and the well was cemented thanks to the proper measures and contingency plan.%F19井φ212.7 mm井眼裸眼段长达2445 m.与邻井相比,地层压力系统发生了明显的变化,高压沥青、盐水层与多个低压薄弱层共存,钻井液安全密度窗口窄.钻井过程中先后发生了沥青侵、井漏和盐水侵等一系列井下复杂情况.稠油沥青严重威胁着钻井安全,破坏钻井液流变性能,污染严重时钻井液呈现胶凝状,无法循环利用.在室内实验的基础上,应用混柴油钻井液预防和处理稠油沥青侵及问题；同时针对严重的井漏,优选出了桥塞堵漏和固结型堵漏2种堵漏浆配方.为保证尾管下到底,从钻井液、悬挂工具、操作等多方面制订了具体措施和应急预案.下尾管作业中,尽管多次出现阻卡和失返等异常情况,但由于措施和预案有针对性,可操作性强,最终成功实现尾管“坐底”,挤水泥固井.
  • 摘要：The reasons for inefficient oil wells have been systematically analyzed based on data statistics of thermal recovery wells, and supporting techniques have been completed to treat casing failure well in conjunction with prevention. Researches have developed supporting techniques for enhanced oil recovery including integrated surface-wellbore-reservoir compound chemical foam profile control, HDCS, and fracturing sand control, thus solved the problem of low thermal recovery efficiency in high water cut wells and stripped wells. Field applications indicate that these techniques have effectively increased the development effect of horizontal wells and achieved satisfactory economic benefit.%在对热采低效井数据统计的基础上,对油井低效原因进行系统分析,配套系列技术,做到套管损坏井治理与防治相结合.通过研究,形成了地面—井筒—油藏一体化的多元复合化学泡沫调剖技术和HDCS、压裂防砂地层改造强化采油配套工艺,针对性解决了高含水井、低产井热采开发效果差的问题.现场应用表明,该系列技术的应用有效提高了水平井的开发效果,取得了良好的经济效益.
  • 摘要：辽河油区锦16块实施二元复合驱时,产生大量采出液,同时要向油层注入大量水以保持油层压力.通过室内驱替实验模拟该区块实施复合驱后二元体系的采出液,测定采出液配制二元复合体系的界面张力、黏度稳定性及流变性,研究采出液配制二元复合体系的可行性.结果表明:不同注入阶段采出液配制的二元复合体系所需的聚合物用量均比深部处理污水配制相同黏度的聚合物干粉用量少；采出液配制的二元复合体系界面张力可达10-3mN/m;采出液配制的二元复合体系的黏度具有较好的稳定性；采出液配制的二元复合体系具有较好的黏弹性.因此,采出液配制二元复合体系是可行的.%A huge amount of fluids is produced during surfactant/polymer flooding in the Jinl6 block of Liaohe oilfield; meanwhile it is required to inject water into the reservoir to maintain reservoir pressure. Bench scale displacement test has been carried out to simulate the produced fluids after surfactant/polymer flooding for this block, to measure the interfacial tension, viscosity stability and rheological property of surfactant/polymer system prepared with produced fluid, and to study the feasibility of the prepared system. The results indicate that the polymer amount used for preparing surfactant/polymer system with produced fluid is always less than that used for preparing the system of same viscosity with treated produced waste water. The surfactant/polymer system prepared with produced fluid has interfacial tension up to 10~3mN/m and has good viscosity stability and viscoelasticity, therefore it is feasible to prepare surfactant/polymer system with produced fluid.
  • 摘要：为了评价泡沫在多孔介质中的稳定性,借助可视化微观模型驱替装置,利用图像采集系统,通过对大量图片进行分析,研究了水湿和油湿介质中不同压力下单一泡沫体系、复合泡沫体系在多孔介质中的稳定性以及泡沫的形成与衰变机理.结果显示,单一泡沫体系和复合泡沫体系在水湿介质中形成的泡沫稳定性均较好,泡沫形成较为容易；同等条件下泡沫体系在油湿介质中泡沫的形成较水湿介质中困难,泡沫稳定性较水湿介质中差；压力相同时,水湿介质和油湿介质中添加了高聚物的复合泡沫体系比单一泡沫体系泡沫稳定性好.%The stability, generation and decay mechanism of unitary and compound foam systems in water - wet and oil - wet porous media under different pressures have been studied by using visual microscopic displacement model and image acquisition system through analyzing a huge number of images. The results indicate that both unitary and compound foam systems exhibit good stability and easier foam generation in water - wet media; while under the same conditions, it is hard to generate foam and achieve good stability in oil -wet media; at the same pressure, compound foam system added high polymer is more stable than unitary foam system in both water - wet and oil - wet media.
  • 摘要：针对页岩气藏中两条互相垂直裂缝井,运用2次保角变换,建立了考虑裂缝的有限导流和滑脱效应影响的页岩气藏裂缝井稳态产能数学模型.分析不同支撑剂粒径和裂缝穿透比条件下裂缝导流能力对产能动态曲线的影响,绘制了不同滑脱系数下的产能流入动态曲线,同时研究了不同滑脱系数下裂缝穿透比对产能的影响.%A mathematical model of steady productivity is established for wells in shale gas reservoir with orthogonal fractures through twice eonformal transformations by taking account of slippage effect and finite conductivity. The impact of fracture flow capacity on productivity curve under conditions of different proppant grain sizes and fracture penetration ratios is analyzed, the inflow performance curves are drawn under different slippage factors, and the effect of fracture penetration ratio on productivity is studied under different slippage factors. The results show that gas well productivity increases with fracture flow capacity (below 2 000) , increases linearly with fracture penetration ratio, and increases with slippage factor especially at low flowing pressure stage.
  • 摘要：从油层物理对孔隙度及岩石几种不同压缩系数的基本概念入手,采用2种方法推导出岩石孔隙体积压缩系数、岩石总体积压缩系数及岩石骨架体积压缩系数的关系式.此表达式的导出有助于储层孔隙度、渗透率变化规律的研究及油藏工程基础研究.%Based on the concept of reservoir porosity and several different compression coefficients of rock in reservoir physics, two methods have been employed to derive the relation equations of rock pore volume compressibility, bulk compressibility and rock matrix compressibility. The equations are helpful to the study of reservoir porosity and permeability and the basic research of reservoir engineering.
  • 摘要：The Irrawaddy Basin in Burma is a Tertiary depression basin which had experienced multi - episodic tectonism. Basement - involved compressional structure dominates the north central part of the basin due to intensive compression. The structural styles in the study area include compression, inversion, extension and strike - slip structures. There had developed Gangaw anticlinorium belt, Htonwaing synclinorium belt, Patolon anticlinorium belt, Thingadon synclinorium belt, Mahudaung anticlinorium belt and Kani slope belt in the basin. The study area had experienced three evolution stages, which are synrift, compressive inversion, and intensive compressional depression. The nature of fault structure depended on the dynamic background in each geological time. The most favorable traps in the study area are anticlinal traps formed by triangle structure and inversion structure.%伊洛瓦底盆地是经历多期构造作用的第三系沉降盆地,后期强烈挤压导致盆地中北部主要发育基底卷入型的挤压构造.研究区构造样式包括挤压、反转、伸展和走滑构造.盆地发育甘高复背斜带、洪湾复向斜带、Pacolon复背斜带、赛带复向斜带、Mahudaung复背斜带和甘尼斜坡带构造单元.研究区经历了断陷—挤压反转—强烈挤压坳陷-沉降3个发展时期,各地质时期的动力学背景决定了断裂构造的性质.研究区最有利圈闭类型为三角带构造和反转构造所形成的背斜圈闭.
  • 摘要：A numerical simulation program has been developed based on the seepage model of low permeability reservoirs with deformed triple medium to predict reservoir productivity by taking account of the influences of threshold pressure gradient, pressure -sensitive effect and skin effect. The variation curves of productivity versus time are plotted by using actual reservoir development parameters , and the effects of various parameters on oil well productivity are analyzed. The results indicate that threshold pressure gradient has substantial negative effect on oil well productivity, while pressure - sensitive effect has little influence; and skin effect can create a pressure buffer zone near wellbore, which can improve productivity without affecting the duration of oil well production at constant pressure. The variation of oil well productivity distinctively features triple medium.%综合考虑启动压力梯度、压敏效应和表皮效应的影响,根据变形三重介质低渗透油藏的渗流模型,开发设计了三重介质油藏产能预测的数值模拟程序；并结合油田开发中油藏参数的实际数据,绘制了产能随时间的变化曲线,分析了各参数对油井产能的影响.分析结果表明:启动压力梯度对油井产能产生较大的负面影响,而压敏效应影响较小；表皮效应会在井筒附近产生一个压力缓冲区,提高产能,但不影响油井定压生产持续的时间；油井产能变化具有鲜明的“三重介质”特点.
  • 摘要：This paper studied the law of water cut change in horizontal wells of bottom water reservoirs in order to reduce the effect of bottom water coning on reservoir development. Six influential factors (horizontal well dimensionless location, oil/water viscosity ratio, angel between horizontal interval and principal permeability direction, vertical/horizontal permeability ratio, horizontal length and reservoir thickness) on Parameter b, which characterizes water breakthrough in horizontal well, have been scrutinized by using Box - Behnken experimental design method based on numerical simulation model of bottom water reservoir. In the later period of the experiment, the influence sequence and interaction of the influential factors on the change of water cut in horizontal wells were obtained by using response surface method. The research results are of theoretical and field guiding significance to the development of bottom water reservoir with horizontal wells.%为揭示底水油藏水平井含水率变化规律,有效降低底水锥进对油藏开发的影响,在建立底水油藏数值模型基础上,运用Box-Behnken实验设计法,对水平井见水特征参数b的6个影响因素(水平井无因次位置、油水黏度比、水平段与主渗透率方向的夹角、垂向与水平渗透率比值、水平段长度、油藏厚度)进行了详细研究.实验后期通过运用曲面反应法得出各影响因素对水平井含水变化的影响顺序和影响交互性.该研究成果对底水油藏的水平井开发具有理论及现场指导意义.
  • 摘要：Under - salt oil and gas resources have presented huge exploration potential and good prospecting as an important reserve growth point and strategic substitution in world oil industry. Based on extensive investigation of related literatures, systematical study has been conducted for under -salt reservoir in respects of geological condition, main controlling factors on hydrocarbon accumulation, existed problems and development trend. The results show that reservoir forming conditions are superior for under - salt reservoirs , such as high abundance and favorable type of organic matters, with the dominant reservoir and percolation spaces being interg-ranular pores, dissolved pores and structural cracks, and with evaporate being the dominant cap rock which is effective in sealing oil and gas. The main controlling factors of under - salt reservoirs include tectonic action and secondary action. There are many technical problems in exploration and development of under - salt reservoirs. It is very important to further strengthen researches on basic theory and tackle key problems in under - salt reservoir exploration and development.%盐下油气资源作为当前世界油气工业极为重要的储量增长点和战略接替区,已经显示出巨大的勘探潜力和良好的勘探前景.在调研大量相关文献的基础上,对盐下油气成藏的地质条件、成藏主控因素、存在问题和发展趋势进行了系统研究.结果表明:盐下油气成藏条件较为优越,其烃源岩有机质丰度高,类型好,其储层储集和渗滤空间主要以粒间孔隙和溶蚀孔洞、裂缝为主,盖层岩性主要为蒸发岩类,封堵油气效果明显；构造作用和次生作用是盐下油气成藏的主控因素；盐下油气藏在勘探和开发上面临各种技术难题,进一步加强盐下油气成藏基础理论研究,有针对性地进行盐下油气勘探和开发的科技攻关,对盐下油气藏的勘探与开发具有重要意义.
  • 摘要：Fire flooding can enhance heavy oil recovery and produce residual oil after cyclic steam stimulation. It has a great potential as a future substitute technology for heavy oil recovery. There is not a mature economic evaluation method and index system for fire flooding at the moment. Fire flooding has its unique features, so that it is very necessary to explore a suitable economic evaluation method. A scientific evaluation method is the premise of reducing investment risk and achieving maximum profit.%火驱采油是一项大幅度提高稠油油藏采收率的热力采油技术,可以继续动用蒸汽吞吐开发所无法开采的剩余油,潜力比较大,是未来稠油开采的有效接替技术.由于火驱采油在国内外都还是一项较新的稠油开采技术,目前尚无成熟的经济评价方法和指标体系,同时由于火驱项目具有独特的技术特点,该类项目的经济评价与一般类型建设项目的经济评价方法不同,所以探索研究适合于火驱采油特点的经济评价方法十分必要.科学评价火驱采油的经济效益,是降低火驱采油项目投资风险,实现项目投资效益最大化的前提.
  • 摘要：Shale gas is an important unconventional resource. Comprehensive study on the geological setting, organic geochemical characteristics and physical parameters of the black shale developed in the Longmaxi formation of lower Silurian in northeast Chongqing indicate that this area has the geological conditions of shale gas reservoir. The potential shale gas zone has been located for the Longmaxi formation of lower Silurian in this area by applying evaluation standards at home and abroad. And the resource extent of shale gas is calculated by using analogy method, volumetric method and Turle Philippines method for the study area.%页岩气是重要的非常规特种油气资源.根据重庆渝东北地区志留系下统龙马溪组发育的黑色页岩的地质背景、有机地化特征、物性参数等指标综合研究认为,该区具备发育页岩气藏的地质条件.应用国内外评价标准,结合渝东北地区实际情况,优选出该区志留下统龙马溪组页岩气资源潜力区,并运用类比法、体积法、特尔菲法等计算研究区有利区页岩气资源量.
  • 摘要：奇异值分解是基于矩阵的数学运算方法来优化压缩地震属性集,地震属性集空间维数一般较高,因此有必要对相关地震属性集进行压缩,从而揭示数据集所表征的储层特征,可用于识别有意义的地质目标.采用奇异值分解方法对苏里格气田东区致密砂岩石盒子组盒8段含气储层沿层属性集进行了优化压缩.实际应用结果表明:奇异值分解优化后的各分量比优化压缩前的单属性预测致密含气砂岩效果更好.%Singular value decomposition ( SVD) uses matrix - based mathematical operation to optimize and compress seismic attribute set, which usually has higher spatial dimension and it is necessary to be compressed to reveal reservoir characteristics and identify significant geological target. SVD method has been applied to optimize and compress the along - horizon attribute set of the tight sandstone gas reservoir in the He 8 member of the Shihezi formation in the east of Sulige gas field. The application result indicates that the SVD optimized components can better predict tight sandstone gas reservoir than single attribute before compression.
  • 摘要：Influencing factors on bottom water coning are meticulously analyzed for the Dalinghe bottom/edge water reservoir in the Huanl7 block. The water coning pattern has been generalized by analyzing reservoir geology and development features and using reservoir engineering and reservoir simulation methods. Experimental results indicate that the farther the distance between interbed and perforation is, the smaller the areal distribution of interbed is, the more prominent the bottom water coning will be; oil/water viscosity ratio, vertical/horizontal permeability ratio and well spacing are all in positive correlation to the decline rate of water cones, in the process of bottom water coning control, the higher the daily mass production of single well is, the faster the decline rate of water cone will be. The change in water cone height mainly takes place in the first four years, so it is suggested to shut in wells and control water coning for four years.%为改善底水油藏开发效果、降低油藏开发中底水锥进现象带来的影响,对影响底水锥进现象各因素进行了详细分析.结合欢17块大凌河边底水油藏地质特征及开发特点,利用油藏工程分析方法及油藏数值模拟技术,总结出水锥起降规律.实验结果表明:隔夹层距离射孔段越远、平面展布面积越小,底水锥进现象越明显；油水黏度比、垂向水平渗透率之比、井距与水锥下降速度呈正变关系；在压制底水锥进过程中,单井日产液量越高,水锥下降速度越快;水锥下降高度变化主要发生在前4 a,建议矿场上最佳关井压锥时间为4 a.
  • 摘要：To improve chemical sand control result in field applications, the sand consolidation performance of epoxy resin emulsion has been studied by using low viscosity epoxy resin emulsion prepared with epoxy resin and self - made emulsifier through phase inversion method. In - door sand consolidation experiments has discovered that the cores consolidated by epoxy resin emulsion exhibit high strength and good permeability, with compressive strength reaching 5 MPa, showing good resistance to both oil and water.%为了改善化学防砂技术在应用过程中的效果,开展了环氧树脂乳液固砂性能研究.以环氧树脂、自制乳化剂为原料,采用相反转法,合成了具有较低黏度的环氧树脂水乳液.通过室内模拟固砂实验发现,采用环氧树脂乳液固砂,固结的岩心强度高、渗透性好,抗压强度可达5MPa,且具有良好的耐油、耐水性能.
  • 摘要：为提高安塞油田油井产能,针对该区低渗储层的敏感性特征进行了细致研究.通过系统的岩心流动实验,定量评价了储层敏感程度.研究结果表明:高52区长10段低渗透储层整体存在强水敏性(水敏指数平均为77.80％,临界矿化度为10 000 mg/L)、弱碱敏性(碱敏指数平均为15.82％)、强酸敏性(酸敏指数平均为90.58％)损害；储层速敏性不仅与储层黏土矿物组成含量有关,还与储层渗透率和孔隙结构有一定关系.对该区块储层的敏感性研究为下一步的油气开采提供了依据.%Systematic core flow experiments have been carried out to study the sensitivity characteristics of the low permeability reservoirs in Ansai oilfield in order to improve oil well productivity. The study result shows that the low permeability reservoirs in the Chang 10 member of Yanchang formation in Gao 52 block are generally strong water - sensitive (average water sensitivity index 77. 80% , critical salinity 10 000 mg/L) , weak alkali - sensitive (average alkali sensitivity index 15. 82% ) , strong acid -sensitive (average acid sensitivity index 90. 58 % ) ; and the velocity sensitivity of the reservoirs is related not only to clay mineral composition , but also to reservoir permeability and pore structure. Reservoir sensitivity study provides basis for further oil and gas recovery in this block.
  • 摘要：A great deal of oil and gas and oil sand are found in Laiyang Sag, which shows that oil and gas were generated and accu-rnmulated in the basin. However, drilling doesnt indicate the existence of oil and gas. In order to solve this problem, coring data are fully applied to compile column diagram of lacies analyses of a single well. The sedimentary facies of Shuinan Member of Laiyang Formation of the Cretaceous System of Laiyang Sag is classified into 6 facieses by combining the sedimentary properties of Shuinan Member, namely, alluvial fan. braided river, fan delta, shallow shore lacustrine, deep lake and semi - deep lacustrine and near-shore subaqueous fan. Based on the theory of sequence stratigraphy and the combination of geology study with geophysics, the seismic data of Laiyang Formation are comprehensively interpreted, seismic facies is analyzed and seismic attribute is picked up. Based on the work done above and the consideration oi the prototype of the basin and the regional structure background, the distribution features of sedimentary facies of Shuinan Member are derived and are significant to the exploration breakthrough of Shuinan Member.%莱阳凹陷发现了大量的油气显示和油砂,说明该盆地有油气生成和油气的聚集,但钻孔未取得突破.为改变此现状,充分应用盆地内钻井取心资料,编制了岩心单井相分析柱状图.结合水南段沉积期特点,将莱阳盆地白垩系莱阳组水南段的沉积相划分为冲积扇、辫状河、扇三角洲、滨浅湖、深湖半深湖、近岸水下扇6种沉积相类型.在层序地层学理论指导下,将地质研究与地球物理手段相结合,对莱阳组地震资料进行综合解释、对地震相进行分析及对地震属性进行提取,再综合考虑原型盆地类型和区域构造背景,得出水南段的沉积相分布特征,对取得勘探突破具有重要意义.
  • 摘要：Volga-Urals Basin is a foreland basin transited from Russia platform to Urals fold belt. The abundant oil ami gas resource results from good rock resource,combination of reserving and covering reserves and trapping conditions. In Permian period hydrocarbon resource rock was matured and came up to peak generation of hydrocarbon and a great quantity of oil and gas migrated to the high region of the structure and formed a few of large oil and gas fields with Ural Mountains uplift and foreland basin formation. Reserve potential in small structure,non - structural trap and deep formation in southern and eastern basin is large and will be the important area and targets for future exploration.%伏尔加—乌拉尔盆地是俄罗斯陆台向乌拉尔褶皱带过渡的前陆盆地.盆地内丰富的油气资源是广泛发育的优质烃源岩、良好的储盖组合和圈闭条件综合作用的结果.二叠纪,随着乌拉尔山隆起,前陆盆地形成,烃源岩成熟并达到生烃高峰,大量油气运移至附近的构造高点,形成多个大规模油气田.盆地东部和南部的小构造、非构造圈闭以及深层,资源潜力很大,是未来勘探的重点和目标.
  • 摘要：Considering that Single factor analysis in the optimization of the parameters in nitrogen huff and puff has a large work load and cannot reflect the degree of the influence of all the parameters on development efficiency,the paper presents the parameter design of nitrogen huff and puff by using the orthogonal experimental design. The parameters include periodic injection volume,injection rate,injection pressure,liquid production rate and soaking time. The results are analyzed by using the methods of visual analysis and variance analysis,obtaining optimized parameters and influence degree on development efficiency,and therefore providing theoretical instruction to parameter optimization of nitrogen huff and puff.%针对注氮气吞吐注采参数优选中单因素分析方法工作量大,不能反映各参数对开发效果影响程度的问题,运用正交实验设计对某区块注氮气吞吐过程中的周期注入量、注入速度、注入压力、产液速度和闷井时间进行方案设计,利用直观分析和方差分析法对实验结果进行分析,得到最优的注采参数方案及各参数对开发效果的影响程度,为现场注氮气吞吐注采参数的优化提供了理论指导.

    特种油气藏的期刊信息

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    特种油气藏的收录情况

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    特种油气藏的投稿信息

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