河北阳原县三马坊地区温泉井成井工艺探讨  

Research on Well Completion Technology of Hot-Spring Wells in the Sanmafang Area of Yangyuan County,Hebei Province

作　　者：景龙[1] 王彦静[1] 赵丽梅 常林祯[1] 

机构地区：[1]河北省地矿局第四水文工程地质大队,沧州061000 [2]河北柳江盆地地质遗迹国家级自然保护区管理处,秦皇岛066000

出　　处：《地质与勘探》2010年第4期716-721,共6页Geology and Exploration

摘　　要：河北省阳原县三马坊地区地热资源条件优越,该地区多年来施工温泉井较多,但成功者无几,即使成井亦无法实现井口关闭,造成资源浪费。工程实践中通过分析以往成井存在的问题,采用了三开成井的施工工艺。通过准确把握一开深度,将273mm表层套管下入至高压热储层上部的稳定隔水段后水泥封固,经试压检验确保管外封闭牢固;二开通过加大泥浆比重力求平衡钻进,钻进后期以涌水限量为依据准确把握时机抢下219mm技术套管;三开以安全钻进为前提,以涌出颗粒大小为依据,采用清水钻进适时完井,从而实现增产。最终本井顺利完工,井口安全关闭。In the Sanmafang region, Yangyuan county in Hebei province, there are abundant geothermal resources. Many hotspring wells were drilled, but very few were successful in recent years. Even if wells are finished, their tops cannot he closed, leading to wasting resources. In this work, we have analyzed the problems in the previous well construction, and used the third-interval of well completion technology. In the first interval, after the Ф273mm surface casing pipe was tripped in the steady aquifuge above the high pressure hot reservoir, cement sealing was implemented which was ensured by pressure test. In the second interval, the drilling was balanced by increasing the slurry proportion. At the end of drilling, the Ф219mm casing was tripped timely based on the limited inrush of water. In the third interval, with the precondition of safety drilling, the well was completed by fresh water-drilling on the basis of debris size to increase the yield. Finally, the well completion was realized favorably with the safe well closure.

关 键 词：三马坊 地热资源 温泉井 成井工艺 

分 类 号：P642[天文地球—工程地质学]