分段式地层压力预测方法及其在阿姆河右岸地区的应用  

Segmented Formation Pressure Prediction and Its Application on the Right Bank Area of Amu Darya Basin

作　　者：吕功训 项红英 龚幸林 欧阳华 王建立 陈德元 

机构地区：[1]中石油阿姆河天然气勘探开发(北京)有限公司,北京100011 [2]北京科胜伟达石油科技股份有限公司,北京100085

出　　处：《石油天然气学报》2014年第1期40-44,5,共5页Journal of Oil and Gas Technology

基　　金：国家科技重大专项(2011ZX05059)

摘　　要：阿姆河右岸地区普遍存在异常高压现象,对于钻井设计和施工构成重大影响。基于正常压实理论模型的地层压力预测方法,采用的是单一压实趋势线,对于复杂岩性地区的地层压力预测效果不佳。为此,针对不同岩性采用分段式地层压力预测方法,对盐上层、膏盐层和盐下碳酸盐岩层进行了压力预测,经钻井实测地层压力检验,相对误差在2%以下。该方法提高了阿姆河右岸地区复杂地质环境下地层压力预测的准确性,能有效指导钻井工程的设计和施工。There widely existed abnormally high pressure on the right band area of Amu Darya,it seriously influenced drilling design and operation.The predicted result was poor,which was based on the method of formation pressure prediction in the area with complex lithologic property as single compaction trend line was used.Therefore segmented formation pressure predicting method was used in allusion to different lithologic properties,pressure was predicted above and beneath the salt beds and evaporite bed of carbonate reservoir,the formation pressure testing in drilling indicated that the error was lower than 2%.The method is used for formation pressure prediction in the area with complex geological condition,the prediction accuracy is improved,it can be used to guide the design and operation of well drilling.

关 键 词：阿姆河右岸 膏盐层 碳酸盐岩 等效深度法 分段式地层压力预测 

分 类 号：P618.13[天文地球—矿床学]