第39卷第7期 2017年7月
能源与环保
China Energy and Environmental Protection
Vol.39No.7
2017
Jul.
渤海A油田储层敏感性评价及油气层保护技术
孙少川，彭芳芳，任彬”，燕收广，田宇
（1.长江大学地球科学学院，湖北武汉430100；2.中石化河南油田分公司石油工程技术研究院，河南南阳473132；
3.长庆油田第四采气厂，内蒙古那尔多斯017300）
摘要：渤海A油田开采过程中出现了欠产现象，通过对该油田储层岩性、储层物性、黏土矿物含量以及流体特征的分析研究，并结合储层敏感性评价及典型井酸化处理前后产量变化情况的分析结果，提出了针对性的油气层保护技术措施。储层敏感性评价结果表明：储层临界流速为3mL/min，为中等偏强速敏；临界矿化度为4038.5mg/L，具有强水敏效应；临界pH值为11,储层具有弱碱敏；盐酸和土酸敏感性评价结果为无酸敏，为可酸化处理地层。在油田后期开发过程中，应结合油田的实际情况，合理选择相应的油气层保护技术措施，包括前期钻井、完并液的选择、生产过程的控制以及增产措施的选择，为确保油田后期稳产增产开发提供技术保障。
关键词：渤海A油田；敏感性；储层特征；油气层保护；稳产增产
中图分类号：TE155
文章编号：10030506(2017)07012205
文献标志码：A
Sensitivityevaluationandreservoirprotectiontechnologyof BohaiAoilfield
Sun Shaochuan',Peng Fangfang ,Ren Bin,Yan Shouguang,Tian Yu
(1. Yangtze Uninersity,SchooL of Earth Sciences,Wuhan430100,China;
2. Petroleum Engineering Technology Research Institute,Henan Oilfield Company,Nanyang473132, Chind :
3. Fourth Gas Production Plant of Changqing Oilfield Company,Ordos 017300, China)
Abstract: According to the phenomenon of shortfall in output process of Bohai A oilfield exploitation, the authors studied the reservoir lithology , reservoir properties, clay mineral content and fluid characteristics, and combined with the results of yield changes before and after the reservoir sensitivity evaluation and typical wells acidizing treatment, corresponding technical measures of reservoir protection were put forward in this paper. Reservoir sensitivity evaluation results showed that, reservoir critical velocity is 3 mL/min, medium to strong velocity sensitivity ; critical salinity is 4 038. 5 mg/L, with strong water sensitivity ; critical pH value is 11 ,the reservoir has weak sensitivity ; evaluation of the hydrochloric acid and mud acid sensitivity results for acid sensitive to acidification and formation. In the process of oilfield development,it should choose a reasonable f reservoir protection and corresponding technology combined with the ac-tual situation of oil field,including pre drilling and completion fluid selection, production process control and stimulation of choice, in order to ensure the stable development of oilfield production and provide technical support.
Keywords : Bohai A oilfield; sensitivity ; reservoir characteristics ; reservoir protection; stable production and increase productivity
0引言
油气层保护技术是贯穿油气勘探、开发以及生产过程中各个环节的一项重要技术措施，不仅为新油田投产开发提供技术保障，而在老区块的开发过程中同样不可忽视1-。在油气田开发过程中采取
收稿日期：2017-02-01；责任编辑：陈朋磊
的增产措施效果往往是有限的，而一且造成油气层的损害，其影响无法估量[7-10]。储层损害不仅会增加各类并下作业的工作量和开发成本，还会严重影响油气产量，如果一旦造成储层损害，就很难再恢复到原始的产能，甚至会影响到整个油田的开采效率，最终影响到油田开发的经济效益。因此，充分认识
D0I:10. 19389/j. cnki. 1003 0506. 2017. 07. 022
作者简介：孙少川（1989一），男，河北任丘人，博士研究生，2015年毕业于长江大学，现从事沉积储层方面的研究工作。
引用格式：孙少川，彭芳芳，任彬，等.激海A油田储层敏感性评价及油气层保护技术[J].能源与环保，2017,39(7)：122-126
Sun Shaochuan, Peng Fangfang, Ren Bin,et al. Sensitivity evaluation and reservoir protection technology of Bohai A oilfield[J], China Energy and Environmental Protection,2017,39 (7) :122-126
·122.万方数据