利用测井资料预测孔隙压力、破裂压力和坍塌压力  

Prediction of Pore Pressure,Fracture Pressure and Collapse Pressure with Well Logging Data

作　　者：郭桂生[1] 蔺敬旗 张仲华[1] 吴丛文[3] 侯庆宇 

机构地区：[1]中国石油新疆油田分公司开发公司,新疆克拉玛依834000 [2]中国石油西部钻探公司测井公司,新疆克拉玛依834000 [3]中国石油新疆油田分公司陆梁油田作业区,新疆克拉玛依834000

出　　处：《新疆石油地质》2011年第2期187-189,共3页Xinjiang Petroleum Geology

摘　　要：钻井液漏失、井喷、井壁坍塌和油气层受污染等异常情况,主要受地层孔隙压力、破裂压力和坍塌压力(以下简称"三压力")控制,是钻井技术人员经常面临的问题。钻前建立"三压力"剖面,就可以设计出钻井液安全密度窗口,保证油田勘探开发生产中的钻井施工安全。电缆地层测试直接获取较为精确的地层孔隙压力,利用偶极声波测井方法能预测出破裂压力和坍塌压力,建立其连续剖面。最终建立了准噶尔盆地"三压力"成果数据库和网上查询系统。The drilling mud leakage,formation fluid overflow,well wall collapse,formation breakdown,reservoir pollution and other anomalies are mainly controled by pore pressure,fracture pressure and collapse pressure（＂three pressures＂）,which are common problems faced by drilling technicians.Establishing a ＂three-pressure＂ profile before drilling,a safe drilling mud density window can be designed to ensure drilling safety for oil field exploration and development.Using wireline formation testing for directly obtaining pore pressure and dipole acoustic logging method for predicting rupture and collapse pressures,the continuous profile of formation fracture and collapse pressures can be established,based which the ＂three pressures＂ results database and online query system in Junggar basin have been provided for designers of drilling,geology and downhole operations.The effect is proved to be good in two-year appliction by Xinjiang Oilfield Company.

关 键 词：偶极声波 电缆地层测试 孔隙压力 破裂压力 坍塌压力 精细评价 

分 类 号：P631.824[天文地球—地质矿产勘探]