石油钻采工艺2016，Vol.38Issue(6)：746-751,6.DOI:10.13639/j.odpt.2016.06.006
地层压力随钻预测技术在高温高压井的应用
Application of formation pressure prediction while drilling technology in HTHP wells
摘要
Abstract
In the Ying-Qiong Basin, HTHP wells are suffered from multiple pressure steps and complex pressure systems, so the ifeld operation cannot be carried out satisfactorily only based on the predrilling seismic data prediction. The formation pressure predic-tion while drilling technology corrects in real time the predrilling formation pressure prediction model and the prediction results by using the pressure monitoring results while drilling of compound logging, so as to increase the formation pressure prediction accuracy and protect oil and gas layers effectively. In this paper, a case study was carried out on HTHP Well Y1. In this well, internationally ad-vanced Equipoise system is used for formation pressure monitoring while drilling in place. The formation pressure prediction model is corrected according to the actual monitoring results of formation pressure, and then the pressure of undrilled formation in the lower part is re-predicted. The measured pressure after the drilling indicates that the prediction accuracy of formation pore pressure based on this method is up to 94%. The practical application shows that formation pressure monitoring while drilling can be used to correct the forma-tion pressure prediction model and increase the formation pressure prediction accuracy. It provides the technical support for the drilling parameter design of HTHP wells, drilling plan adjustment and safety control.关键词
高温高压井/地层压力/监测/随钻预测/地震/海上油气田Key words
HTHP well/formation pressure/monitoring/prediction while drilling/seismic/offshore oil and gas ifeld分类
能源科技引用本文复制引用
孙东征,杨进,杨翔骞,李中,顾纯巍..地层压力随钻预测技术在高温高压井的应用[J].石油钻采工艺,2016,38(6):746-751,6.基金项目
国家自然科学基金“海洋深水浅层钻井关键技术基础理论研究”（编号51434009）；国家自然科学创新研究群体项目“复杂油气井钻井与完井基础研究”（编号51221003）。 （）
