优化改造油田生产工艺 增产增效提高环保水平——涠洲11-4油田生产工艺优化改造实践

油田生产水处理和海管输油能力不足是制约涠洲11-4油田生产和影响生产安全的瓶颈问题。合理利用油田原有设施和条件,对生产水处理系统和输油管道系统进行工艺优化改造,使该油田B平台海管运行的安全可靠性得以明显提高,并使油田生产水处理能力和处理质量得到有效改善,同时大幅度降低了油田生产成本,拓宽了油田增产挖潜的空间。涠洲11-4油田优化改造生产工艺实践经验,可为进一步拓宽海上老油气田的生产管理思路提供参考。     

生产尾管固井技术优化及其在渤中25-1油田中深丛式井的应用

渤中25-1油田沙河街组油藏属于中深层高温高压油藏,制约了常规尾管固井技术的应用。对生产尾管固井技术进行了优化,解决了中深丛式井生产尾管固井作业安全、质量与时效之间的矛盾,实现了非钻机时间候凝和电测固井质量,显著提高了钻井作业时效。该项技术成果对于渤海中深层油田的开发具有重要意义。     

准噶尔盆地车排子地区侏罗系层序地层格架

在前人对准噶尔盆地全盆地或局部层序地层大量研究成果的基础上，重点对盆地西北缘侏罗系地层格架特征开展了深入、细致的解剖和刻划，建立了层序地层格架，首次对车排子地区侏罗系层序及体系域界面特征进行了描述，并结合钻探井资料，划分了有利的沉积相带，对盆地侏罗系隐蔽型圈闭和油气藏的勘探提供了一种思想和方法。     

提高特高含水期油藏采收率的方法及应用效果

针对胜索油田二区9-10单元的层间非均质和平面非均质性，运用水动力学方法，采用周期注水及增压注水改善单元的水驱油效果。经过6a的实施，单元的开发形势趋好，单元采收率提高9.62%，增加可采储量341.5kt，对同类型非均质性油藏改善水驱油效果，提高最终采收率具有借鉴意义。     

重力测井用于注CO2油藏监测的理论分析

在３次采油过程中，注采已为广泛应用，但所面临的问题是如何确定油层中注入流体的波及范围、流体前缘位置及推进速度等。利用地震方法进行注采由于受震资料分辨率的限制，只适用于浅层，而其它测井方法由于探测范围限制，揭示井间注采动态又显不足。重力测井具有探测范围大、受井径变化影响小、重复观测周期短、不受目的层埋深限制等优点。通过正演模拟分析表明，重力测井方法不仅可监测ＣＯ２前缘空间位置的变化，而且可以判定ＣＯ     

三元复合驱配注站工艺流程与自控系统

根据对三元复合驱配注站自控系统的设计及现场经验，介绍了大庆油田三元复合驱配注站自控系统的内容和现状，总结了大庆油田已建三元复合驱配注站的运行情况，并提出了三元复合驱配注站自控系统的发展趋势。     

SEISMIC FACIES ANALYSIS BASED ON 3D MULTI-ATTRIBUTE VOLUME CLASSIFICATION, DARIYAN FORMATION, SE PERSIAN GULF

Interpretation of recently acquired 3D seismic data from the adjacent Sirri C and D oilfields in the SE Persian Gulf indicates that a 3D interpretation of seismic facies is crucial to resolve the internal stratal geometries of the Aptian Dariyan Formation. This carbonate formation passes southward into the Shu'aiba Formation, a prolific reservoir rock of similar facies in the UAE. Lack of exposures and limited cored intervals have forced reliance on the seismic data for evidence of the depositional environment and the internal architecture of potential reservoir rocks. The progradational nature of the Dariyan Formation and the occurrence of carbonate build‐ups within it make this stratal geometry complex. The complex internal heterogeneity of the build‐ups and presence of seismic noise make mapping of the build‐ups in 3D space using conventional seismic interpretation tools difficult, despite the availability of high‐quality 3D seismic data covering the area. The high quality seismic and limited well data from this field is one of the few datasets of this kind presented in the literature. A procedure for the hierarchical multi‐attribute analysis of seismic facies using Paradigm's Seis Facies software is used in this study to provide a 3D interpretation of the stratal patterns. Principal component analysis reduces the noise and redundant data by representing the main data variances as a few vector components in a transformed coordinate system. Cluster analysis is performed using those components which have the greatest contribution to the maximum spread of the data variability. Six seismic attribute volumes are used in this study and the result is a single 3D classified volume. Important new information obtained from within the Dariyan Formation gives new insights into its stratigraphic distribution and internal variability. This method of processing seismic data is a step towards exploring for subtle stratigraphic traps in the study area, and may help to identify exploration targets.     

特低渗油藏水平井布井方式研究

本文以西峰油田董志区长8油藏为例，运用数值模拟技术，研究了水平井组合方式及其井网形式。研究结果表明，水平井是提高特低渗油藏开发效果的有效途径。结合长庆特低渗储层吸水性能好的特点，认为采用直井注水，水平段走向垂直于储层最大主应力方位的水平井采油的井网组合开发效果最佳。     

套管液压式φ106mm密封加固系统研究

针对套管液压式φ100mm密封加固系统在实际应用中的缺点,开展了大通径密封加固技术专题研究.研制的套管液压式φ106mm密封加固器承压达30 MPa以上,悬挂力达到500kN以上,可下入φ100mm小直径分层管柱.现场应用见到了明显的效果,为提高小直径分采分注管柱寿命创造了条件.