摘要
在四川勘探钻井重点探区温泉井、渡口河两构造钻井中,速度慢,井下事故复杂频繁发生,严重制约该地区的勘探速度。通过分析渡1、渡2、渡3、渡4和温泉4井的经验教训,建议加强对该探区浅层气的研究和认识;从钻井设计入手,增加设计前的地质情况调查,尤其是钻井周边环境状况的调查;提高对井下、人身、地面设备的安全意识,控制上部井段清水浸泡时间,加强堵漏治漏工艺技术的攻关,提高固井质量。
When drilling in
Wenquanjing structure and Dukouhe structure which are main exploration drilling area in
Sichuan basin,the low drilling speed,many downhole problems have severely restricted drilling
progresses in the area.Based on analysis of well Du 1,well Du 2,well Du 3 and well Du 4,this
paper presents that the study on shallow natural gas reservoirs in this drilling area should be
strengthened.On the basis of drilling design,we should make more geologic investigation
before drilling design,especially,pay attention to the study on circumferential environment
around the well sites,strengthen safty consciousness over downhole,staff and surface
equipment,controll the soaking time of upper section in drilling fluid,make further research on
curing lost circulation,improve cementing quality and enforce management of cementing
engineering.
出处
《钻采工艺》
CAS
1999年第2期9-13,共5页
Drilling & Production Technology
关键词
气井
勘探钻井
井控
固井质量
井漏
钻井事故
exploration drilling,structure,well control,cementing quality,lost
circulation,eastern Sichuan