| 石油钻井工程中岩层蠕变速率及蠕变参数分析 |
| |
| 引用本文： | 陈 锋,唐代绪,杨春和. 石油钻井工程中岩层蠕变速率及蠕变参数分析[J]. 岩土力学, 2006, 27(Z1): 493-496 |
| |
| 作者姓名： | 陈 锋 唐代绪 杨春和 |
| |
| 作者单位： | 1. 中国科学院武汉岩土力学研究所，武汉 430071；2. 胜利油田石油管理局钻井工艺研究院 油田化学研究所，东营 257017 |
| |
| 基金项目： | 国家自然科学基金（No. 50374064，50434050）；国家重点基础研究发展规划（973）项目（No. 2002CB412704），中国科学院岩土力学重点实验室开放基金资助项目（No. Z000508）。 |
| |
| 摘 要： | 石油勘探开发工程中，盐膏岩层及含膏泥岩由于具有较低的渗透特性，往往是大型油气藏的封闭层。由于盐层具有较大的流变特性，盐层钻井技术成为钻井工程中的重大技术难题。通过对某一勘探井盐岩层及含膏泥岩井眼不同时间间隔下的井眼测试，获得了井眼地层盐岩及软泥岩等岩层的蠕变速率。采用幂指数流变本构模型对盐岩及软泥岩的蠕变速率进行了分析，通过反演获得了该地质区块盐岩及软泥岩的蠕变参数。该参数能进一步用于对盐岩钻井过程中钻井液密度的优化分析中。
|
| 关 键 词： | 盐岩 含膏泥岩 蠕变 钻井液密度 |
| 收稿时间： | 2006-04-20 |
Creep rate and creep parameters analysis of rock layer in drilling engineering |
| |
| CHEN Feng,TANG Dai-xu,YANG Chun-he. Creep rate and creep parameters analysis of rock layer in drilling engineering[J]. Rock and Soil Mechanics, 2006, 27(Z1): 493-496 |
| |
| Authors: | CHEN Feng TANG Dai-xu YANG Chun-he |
| |
| Affiliation: | 1. Key Laboratory of Rock and Soil Mechanics, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China;2. Oilfield Chemistry Department, Drilling Technology Institute, Shengli Petroleum Administration Bureau, Dongying, 257017 |
| |
| Abstract: | The salt rock layer and the soft mudstone layer with salt, which have the low permeability, are usually the sealing layer of the large-scale oil-gas pool in the oil geology exploratory engineering. Thanks to the creep behavior of salt rock, the drilling technique in the salt rock layer becomes the difficult problem of drilling engineering. Based on the measured result of the drilling hole diameter between the different time, the creep rates of the rock layers in the deep stratum are obtained. The creep rate of the soft mudstone with salt is maximal. Secondly is the salt rock layer. The exponent creep constitutive law is employed to analyze the creep rate of rock layer in the three-dimensional numerical method. The creep parameters of salt rock and mudstone with salt are obtained. The parameters can be used in the optimizing analysis of the drilling mud density. |
| |
| Keywords: | salt rock mudstone with salt creep damage drilling mud density |
|
| 点击此处可从《岩土力学》浏览原始摘要信息 |
|
点击此处可从《岩土力学》下载全文 |
