| 空气钻井中钻具腐蚀因素的灰关联分析 |
| |
| 引用本文： | 万里平,孟英峰,梁发书,梁红.空气钻井中钻具腐蚀因素的灰关联分析[J].断块油气田,2004,11(1):54-57. |
| |
| 作者姓名： | 万里平 孟英峰 梁发书 梁红 |
| |
| 作者单位： | 西南石油学院 |
| |
| 基金项目： | CNPC资助项目“伊朗复杂地层钻井技术研究”的部分成果 |
| |
| 摘 要： | 伊朗TBK气田钻具腐蚀严重，钻杆更换频繁，直接影响中方钻井施工的进度和经济效益。为了弄清影响钻具腐蚀的原因，在对TBK14井地层水质分析的基础上，应用灰色理论中的灰关联分析方法对影响钻具腐蚀的多个因素进行了探讨。分析计算结果与现场实际情况相吻合。结果表明，造成钻具腐蚀的主要原因是高温条件下酸性地层盐水的电化学腐蚀；高压空气中溶解氧对钻具的氧化腐蚀；地层砂子磨损钻具使氧化膜脱落造成的磨蚀。为了保护钻具，决定配制高pH值且添加了缓蚀剂的稳定泡沫液进行空气泡沫钻井。实践证明，此法有效地抑制了钻具腐蚀，提高了经济效益。
|
| 关 键 词： | 空气钻井工艺 钻具 腐蚀现象 缓蚀剂 pH值 钻杆 压力系数 灰色系统 |
| 修稿时间： | 2003年8月26日 |
Grey Association Analysis of Drilling Tools Corrosion Factors in Air Drilling |
| |
| Wan Liping.Grey Association Analysis of Drilling Tools Corrosion Factors in Air Drilling[J].Fault-Block Oil & Gas Field,2004,11(1):54-57. |
| |
| Authors: | Wan Liping |
| |
| Abstract: | Chinese side drilling executive progress and economic benefits are effected,due to drilling tools severe corrosion and drilling pipe frequent replace in TBK gas-field of Iran.In order to ascertain impacting drilling tools corrosive cause,application grey association analysis method of grey theory discusses each corrosive factor,based on formation water quality analysis of TBK 14 well.Analytical calculation outcome dovetails field practical situation.The results show that the main corrosive factors are acid formation briny electro-chemical corrosion in high temperatrue;oxidation corrosion of dissolved oxygen in high pressure air;oxidize membrane shed creating wear,for strata sand abrading drilling tools.In defence of drilling tools,formulating high pH value and adding corrosion inhibitor stable foam proceeds air foam drilling.Practice indicates that this method effectively restrains drilling tools corrosion and improves economic benefits. |
| |
| Keywords: | Drilling tools Air drilling Corrosion Wear Grey association analysis |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
