板南储气库井承压堵漏技术  

Technology of Mud Loss Control under Pressure in Bannan Gas Storage Wells

作　　者：王禹[1,2] 黄达全 解文[3] 杨贺卫 郭剑梅 杨俊良 田增艳 张贺生 

机构地区：[1]长江大学石油工程学院 [2]渤海钻探泥浆技术服务分公司 [3]中国石油大港油田公司

出　　处：《钻井液与完井液》2013年第3期47-49,95,共3页Drilling Fluid & Completion Fluid

摘　　要：为了满足储气库井提高地层承压能力的需要,研究出了新型刚性嵌入多级封堵承压堵漏技术,该技术主要是利用不同级别目数的刚性架桥颗粒,以及各粒级的桥塞堵漏剂和可变形微粒封堵材料,在地层中架桥,楔入、填充裂缝中,提高地层的周向诱导应力,从而提高地层承压能力。室内实验针对板南储气库井的地层特点优选出一套承压堵漏浆配方:基浆+5%刚性颗粒A(150～250μm)+3%刚性颗粒B(40～60μm)+3%刚性颗粒C(10～30μm)+10%桥塞堵漏剂BZ-SPA+2%低渗透封堵剂BZ-DFT。该承压堵漏技术在板南储气库现场应用3口井,均一次完成承压堵漏,显著提高了堵漏效率,满足了固井施工对地层承压能力的要求。Reservoirs of Bannan gas storage is of sandstone reservoir with low formation pressure because of long time production,where cement slurry losses are encountered while drilling gas storage wells.Because the traditional LCM cannot improve the formation pressure containment very effectively,and the operation time is too long,a novel technology of mud loss control under pressure is applied to meet the demand of cementing in gas storage wells.A formulation of LCM drilling fluid is developed in laboratory that is 5% rigid particle C(10-30 μm)+10% bridging LCM BZ-SPA+2% BZ-DFT.The applications in 3 wells are all achieving success at the first time,which improves the formation pressure containment and meets demand of cementing job.

关 键 词：承压堵漏 刚性颗粒 多级封堵 储气库井 

分 类 号：TE258[石油与天然气工程—油气井工程] TE282