泥页岩地层孔隙压力的预测方法  

A Prediction Method of Pore Pressure in Mud Shale Formation

作　　者：左星[1] 何世明[1] 黄桢[2] 范兴亮[2] 李薇[1] 曾永清[3] 

机构地区：[1]西南石油大学,四川成都610500 [2]四川石油管理局川东开发公司,重庆400021 [3]塔里木油田公司勘探事业部,新疆库尔勒841000

出　　处：《断块油气田》2007年第1期24-26,共3页Fault-Block Oil & Gas Field

摘　　要：勘探开发过程中,由于地层孔隙压力预测不准,时常造成井眼坍塌、破裂,这不但影响了工程的进行,而且带来了巨大的经济损失。因此,准确预测地层孔隙压力,对钻井设计中钻井液密度的选择和合理的井身结构设计起着重要作用,同时也是打好一口井的重要因素。文中概述了关于地层孔隙压力预测的一系列方法,并通过实例来说明如何准确预测,最后针对预测方法的局限性提出了一些建议。The inaccurate predication of the pore pressure often damages the borehole during the exploration and the exploitation.It not only obstacles the process of engineering project,but also engenders big economic damages.So,the accurate prediction of pore pressure not only plays an important role in determining the mud density and the design of well bore structure in drilling,but also is a key factor for drilling successfully.This article emphatically elaborates about a series of methods to forecast pore pressure,including the forecast for formation pressure during the process of drilling,and it illustrates how to accurately forecast pore pressure.Finally,this article presents some suggestions pointing to the limitations of method of prediction.

关 键 词：勘探开发 预测 地层孔隙压力 钻井液密度 

分 类 号：TE21[石油与天然气工程—油气井工程]