摘要
传统的试油作业中需要起下两次钻具才能完成刮削套管和洗井两道工序。针对塔里木盆地井深、高温、试油作业日费高等特点,研发了以刮洗一体化工具为核心的刮削洗井一体化工艺。该工具入井时刮片处于伸开状态,刮削作业完成后通过投球打压方式剪断销钉,刮片回缩后进行通井、洗井、替浆作业。现场应用表明,刮削洗井一体化工艺可实现刮削、替浆、洗井一趟钻完成,平均单井节约试油时间28.0 h。
In traditional test operations, casing scraping and well lfushing should be completed in two trippings. In the Tarim Oilifeld, which is characterized by deep well, high temperature and high day rate for well testing, an integrated scraping and lfushing tool is developed and applied. The tool runs into the hole with its blades stretched out;after scraping, the blades recoverd with the pins are sheared by way of dropping-to-pressurizing, and then well drifting, lfushing and mud replacement. Field application shows that the integrated tool realizes the operation of scraping, replacement and lfushing in one trip, making the time of single well test reduced by 31.4 hours.
出处
《石油钻采工艺》
CAS
CSCD
北大核心
2014年第3期128-130,共3页
Oil Drilling & Production Technology
关键词
刮削
洗井
一体化工具
scraping
lfushing
integrated tool
