纯气井静气柱水汽特性及压力精确计算  

WATER VAPOR CHARACTERISTICS AND PRESSURE ACCURACY CALCULATION OF QUIESCENT GAS COLUMN IN PURE GAS WELL

作　　者：李钦道[1] 周垚尧[1] 张家振[1] 尹晓煜[1] 

机构地区：[1]川庆钻探工程有限公司钻采工程技术研究院

出　　处：《钻采工艺》2012年第3期21-24,7,共4页Drilling & Production Technology

摘　　要：纯气井静气柱水汽特性是一个十分复杂又非常重要的问题。它不仅涉及到井筒中水蒸汽是什么状态,还涉及到这种状态下静气柱压力如何修正,也涉及到水蒸汽会不会对油套管产生腐蚀等一系列问题,因此有必要对水蒸汽特性进行分析研究。文章先从大气中的水蒸汽特性谈起,其次讨论纯静气柱水蒸汽特性,再次讨论水蒸汽对纯静气柱的影响。介绍在水蒸汽条件下纯静气柱精确压力计算公式和方法,用实例介绍纯静气柱精确压力计算的方法和程序。Water vapor characteristics of quiescent gas column in pure gas well are a very important issue.It need to be analyzed and researched because water vapor characteristics involve a series of issues,such as the state of water vapor in hole,the revision of pressure for quiescent gas column and whether causing corrosion or not to tubing and casing,etc.This paper firstly expatiated on water vapor characteristics in the atmosphere,then discussed water vapor characteristics of the quiescent gas column and the influence of water vapor on quiescent gas column.Finally,the accuracy calculation formula and method for pressure of quiescent gas column in hole were presented and the process of calculation was showed by calculation example.

关 键 词：纯静气柱 水汽特性 压力精确计算 

分 类 号：TE21[石油与天然气工程—油气井工程]