川东北三高气井测试管柱力学研究  

MECHANICAL ANALYSIS OF TESTING STRING IN HIGH TEMPERATURE,HIGH PRESSURE AND HIGH PRODUCTION GAS WELL OF NORTHEASTERN SICHUAN BASIN

作　　者：丁亮亮[1] 练章华[1] 林铁军[1] 魏纳[1] 吴建军[2] 

机构地区：[1]油气藏地质及开发工程国家重点实验室.西南石油大学 [2]中国石化石油工程西南有限公司井下作业分公司

出　　处：《钻采工艺》2010年第4期71-73,共3页Drilling & Production Technology

基　　金：国家自然科学基金项目资助;编号:50774063;项目名称为:基于数值模拟的复杂地层地应力场反演研究

摘　　要：川东北海相碳酸岩气藏地质条件复杂,气井高温、高压、高产使测试管柱在整个测试过程中载荷和变形变化复杂,给完井测试工作的安全、高效开展带来了挑战。针对川东北三高气井测试管柱工作条件和测试作业的特点,考虑管柱组合、管柱载荷、高温高压等因素及屈曲状态、井口和封隔器约束的影响,并综合考虑管内外流体压力、黏滞摩擦、弯曲失稳后法向支反力及库仑摩擦力的影响,给出了井下管柱载荷、变形计算方法与公式。在此基础上,使用可视化Visual Basic语言编制了测试管柱力学分析软件,并使用软件对川东北元坝1井测试管柱进行力学分析,证明了软件和数学模型的科学性和实用性。Geologic condition of marine facies carbonatite gas reservoir in Northeastern Sichuan Basin is very complex. In high temperature,high pressure,high production gas well,load and de-formation of testing string changes complexly in the entire testingprocess change. Considering the testing string structure and opera-tional features in Northeastern Sichuan Basin,the stability of string by the action of the inside and outside pressure and the high speed gas-stream were studied in this paper. Taking the affection of fluids pressure inside and outside the string,viscosity friction and coulomb friction into account,a general-purpose software for testing string was further developed. The designed software has been used to Yuanba 1 Gas Well testing string mechanical analysis,which has proved the mathematic models and the developed software are both practical and reliable.

关 键 词：三高气井 测试管柱 力学分析 软件开发 

分 类 号：TE37[石油与天然气工程—油气田开发工程]