天然气工业2009，Vol.29Issue(11)：59-61,3.DOI:10.3787/j.issn.1000-0976.2009.11.018
库车坳陷山前构造超深井岩石可钻性研究
Rock drillability investigation for ultra-deep well drilling at thrust structure of Kuqa depression
摘要
Abstract
It is an important part in scientific drilling to predict the drilling speed and make out drilling plans according to the rock drillability grades. Then the precise prediction of rock drillability is one of the key fundamentals especially for high-quality and high-efficiency ultradeep well drilling, thus to improve the ROP and reduce costs. Therefore, by use of the mathematical statistical method, based on the drilling, logging and mud data obtained from wells already completed at the thrust structure at the Kuqa depression and the statistical analysis of experiment data on micro-bit drillability, we established the rock drillability profiles in both vertical and horizontal direction for ultra-deep drilling at the thrust structure at the Kuqa depression. Thus, the rock drillability can be predicted rather accurately, which can meet the needs of drilling on site. Meanwhile, a software is then developed for design calculation. The application of the drillability profiles and this software proves that the error between the calculated value and the actual drilling data is 5 -8％, so they can be widely used. To achieve the most technical and economical benefits,the rock drillability profiles can be adjusted according to different areas and structures.关键词
山前构造/超深井/录井/测井/岩石可钻性/钻井成本Key words
thrust structure/ultra-deep well/mud logging/wireline logging/rock drillability/drilling cost/mathematical statistical method/formation/prediction分类
能源科技引用本文复制引用
熊继有,蒲克勇,周健..库车坳陷山前构造超深井岩石可钻性研究[J].天然气工业,2009,29(11):59-61,3.基金项目
本文为国家自然科学基金资助项目(编号:90610013)的部分研究成果. （编号:90610013）
