摘要
针对海上油田小井眼注水井缺乏高效测调分注工艺的技术现状,在现有大尺寸边测边调分注工艺基础上,创新设计了高效测调分注工艺、分注管柱、注水工作筒及验封测调一体化仪器,形成了适用于海上油田82.6 mm(3.25 in)内通径的小井眼分注井测调一体化工艺技术。采用该工艺技术可使小井眼注水井的分注层数不受限、单层流量不小于1000 m^(3)/d,测调时效和成功率高,且具备测试通道。海上油田小井眼分注井测调一体化工艺技术现场应用了11口井,验封调配144层次,一次性验封测调成功率97.3%以上,平均单井测调时间在6 h以内,分层验封效果可达90%以上,分层流量测调误差在10%以内,测调精度在2%以内,分层配水合格率超过95%。该工艺技术可以满足当前海上油田小井眼注水井精细化注水的开发需求。
Aiming at the lack of the efficient measurement and adjustment separate injection technology for offshore slim hole injection wells,based on the existing large-size measurement and adjustment separate injection technology,the 82.6 mm integrated instrument for high-efficiency measurement and adjustment separate injection are innovatively designed.An integrated measurement and adjustment technology for offshore slim hole separate injection well is established.With the technology,the number of separate layers of the slim hole water injection is not limited,the flow rate of a single layer is no less than 1,000 m^(3)/d,and the measurement and adjustment timeliness and the success rate are high with the test channel available.The technology has been applied in 11 wells with 144 layers.The one-time success rate of sealing examining,measurement and adjustment is over 97.3%.The average single-well measurement and adjustment time is within 6 hours.The separate layer sealing effect can reach more than 90%.The separate layer flow measurement and adjustment error is within 10%.The measurement and adjustment accuracy are within 2%.The pass rate of separate layer water distribution exceeds 95%.This technology can meet the current demand for refined water injection of offshore slim hole injection wells.
作者
刘义刚
孟祥海
张志熊
蓝飞
陈征
张乐
陈华兴
Liu Yigang;Meng Xianghai;Zhang Zhixiong;Lan Fei;Chen Zheng;Zhang Le;Chen Huaxing(Tianjin Company of CNOOC)
出处
《石油机械》
北大核心
2021年第3期90-94,101,共6页
China Petroleum Machinery
关键词
海上油田
小井眼
分层注水
验封
测调
一体化工艺
offshore oil field
slim hole wellbore
separate layer water injection
sealing examining
measurement and adjustment
integrated technology
作者简介
第一作者:刘义刚,教授级高级工程师,生于1969年,1994年毕业于大庆石油学院采油工程专业,现从事采油工艺技术方面的研究和管理工作。地址:(300456)天津市滨海新区。E-mail:chenhuaxing@163.com。
