Q1井油气层保护技术实践

• 作 者: 王兴中
• 出 处: 钻采工艺
• 发表日期: 1999年05期
• 关键词: 油气层保护 Q1 技术实践 钻井液处理剂 环空流速 钻井液密度 固井技术 钻井技术 储集层 防塌钻井液

Ｑ１井属裂缝型油气井。设计井深３０２５ｍ，完钻井深３０２０ｍ。主要目的层是大安寨，岩性为灰色微晶介屑灰岩。预计地层压力当量钻井液密度为１５０ｇ／ｃｍ３～１６３ｇ／ｃｍ３，实际达到１８４ｇ／ｃｍ３。１储集层损害因素和预防措施（１）损害油气储集层的主

Q1 well is a fractured oil and gas well. Design well depth 3025m, finished drilling depth 3020m. The main target is Da’anzhai, lithology is a gray microcrystalline dikite limestone. It is estimated that the drilling fluid density of formation pressure equivalent is 150g / cm3 ~ 163g / cm3, and actually reaches 1.84g / cm3.1 Factors and preventive measures of reservoir damage (1) Main damage to oil and gas reservoirs