摘要
昌吉油田二叠系芦草沟组为自生自储型油藏,具有典型致密油的特征,该储层纵向上发育上、下两个甜点体,吉3*H井与吉7*H井是位于该区块的水平井,钻井井眼轨迹均在上甜点穿行,两井导眼井对应目的层的渗透率和自由流体孔隙度相当,储层厚度相当,电性相当,且水平段钻进物性上吉3*H井比吉7*H井要差,裂缝发育程度也较吉7*H差,吉7*H井采用传统压裂加砂模式,而吉3*H井采用高速通道压裂技术,两井施工均获得成功。通过两井施工数据、压后退液试产数据以及节约施工材料的对比分析,确定了高速通道压裂技术在致密油储层压裂改造方面具有较明显的优势。
Lucaogou reservoir of Permian in Changji oilfield is self-generating and self-storage type reservoir,and it has the typical tight characteristics,and it developed upper and lower two'sweet point'in the longitudinal direction,well Ji3*H and Ji7*H are two horizontal Wells in this block,and the well trajectory all is walking through the upper'sweet point',and corresponding objective layer of the pilot holes of the two horizontal wells has almost the same free fluid porosity and permeability,the same reservoir thickness and electrical,and the physical properties of the well Ji3*H are worse than well Ji7*H,also the fracture development degree is poor.Well Ji7*H used the traditional sand fracturing model,well Ji3*H used the high-speed channel fracturing technology,and the drilling operation of two wells were successful.Through the comparison and analysis of the operation data,and production testing data,and materials cost of the two wells,the results showed that the high-speed channel fracturing technology had more obvious advantages in the tight oil reservoir fracturing.
出处
《钻采工艺》
CAS
北大核心
2014年第6期55-57,4,共3页
Drilling & Production Technology
关键词
昌吉油田
致密油
压裂技术
高速通道压裂技术
对比分析
Changji Oilfield
tight reservoir
high-speed channel fracturing technology
traditional fracturing technology
comparative analysis
