油基泥浆长水平段页岩气固井技术在建页HF-2井的应用  

The Application of Oil-base Mud Cementing Technology in Long Horizontal Section of Shale Gas in Jianye HF-2 Well

作　　者：张国仿[1] 袁欢[2] 吴雪平[2] 周福新[2] 许明标[3] 王晓亮 

机构地区：[1]中石化江汉石油工程公司,湖北潜江433121 [2]中石化江汉石油工程公司钻井一公司,湖北潜江433121 [3]长江大学石油工程学院,湖北武汉430100 [4]荆州嘉华科技有限公司,湖北荆州434000

出　　处：《石油天然气学报》2014年第10期133-136,8,共4页Journal of Oil and Gas Technology

摘　　要：建页HF-2井井深为2888m,水平段长1000m,大斜度段长380.5m,垂深1753.74m,页岩发育,使用油基泥浆,裸眼段伴有漏层。针对现场情况,制定了相应的固井技术措施确保固井质量,具体措施包括:模拟套管串强度通井,优化扶正器安放设计,使用高效油基泥浆清洗液VERSACLEAR冲刷井壁,采用双凝双密度韧性胶乳水泥浆进行防漏防窜双控制,使用双配双注固井设备以及漂浮顶替技术。较好地解决了页岩气长水平段油基泥浆条件下的固井技术难题,建页HF-2井水平段全段固井质量良好。Jianye HF-2 Well was 2888 mdeep,horizontal section length was 1000 m,high-angle segment length was380.5mwith vertical depth of 1753.74 m,Shale formation was developed,oil-base mud was used for drilling and lost circulation was induced in open hole section.In consideration of field conditions,corresponding measures for cementing technique were developed for ensuring the cementing quality.The measures include wiper trip for simulating the strength of well casing strings,optimizing the design of centralizer setting,cleaning the wellbore by using high efficient oil-base fluid VERSACLEAR,using double-density dual condensate toughness latex slurry for controlling the lost circulation and channeling and using double mud pumping trucks and double fluid mixing trucks and floating displacement technology,by which the problems of cementing under the condition of long horizontal section in shale gas formation using oil-base mud are solved,good quality is obtained in the whole well of Jianye HF-2.

关 键 词：页岩 水平井 油基泥浆 清洗液 韧性胶乳双凝水泥浆 固井质量 

分 类 号：TE256[石油与天然气工程—油气井工程]