煤层气井专用井口装置额定工作压力计算  

Calculation of Rated Working Pressure for CBM-specific Wellhead

作　　者：王霞[1] 刘峰[1] 王广福 吴建军[1] 薛孟尧[1] 

机构地区：[1]中国石油大学机电工程学院,山东东营257061 [2]莱芜市公安消防支队,山东莱芜271100

出　　处：《石油矿场机械》2010年第7期45-49,共5页Oil Field Equipment

基　　金：国家油气重大专项(2009ZX05038-004);山东省重点攻关项目(2009GG10007008)

摘　　要：从压裂施工需要和煤层气井关井压力2个方面进行井口压力理论分析和计算,并以晋城和韩城地区煤层气井为研究对象,计算了700 m深煤层理论破裂压力,与实际动态测井数据比较,说明理论计算结果是可信的,为设计煤层气专用井口装置提供了理论依据,并提出正常生产的井口装置设计额定公称压力为14 MPa。In order to design special coal-bed methane wellhead,the wellhead pressure of theoretical calculations from two aspects was implemented for the needs of fracturing and gas shut-in pressure.The fracturing pressure at 700m depth of coal bed was calculated,which after comparison with actual measured one showed that the calculated result is of credibility.It provides theoretical basis for the design of coal-bed methane wellhead and the rated nominal pressure 14MPa wellhead was put forward during normal production.

关 键 词：煤层气井 压裂 井口压力 破裂压力 关井压力 

分 类 号：TE931.02[石油与天然气工程—石油机械设备]