摘要
根据新疆鄯善油田38口井的压裂施工资料，拟合出裂缝延伸压力梯度与压裂目的层压力系数之间的关系。经验证，该方法简单可靠。在新区进行压裂设计时，由于没有先前的压裂施工资料可供借鉴，此时可用该方法对裂缝的延伸压力进行估算，进而掌握地面施工系压和功率消耗情况，并由此选择地面设备、井下工具及部分压裂工艺参数，使压裂设计更具科学性。
The relational expression between fracture extension pressure gradient and pressure coefficient of fractured formation is matched based on fracturing operation data of 38 wells in Shanshan oilfield of Xinjiang. Field application results show that it is simple and reliable. In fracturing design for a new oilfield, the fracture extension pressure can be calculated by this relational expression since there is no fracturing operation data for reference. The surface equipment, downho1e tools and operation parameters for fracturing can be selected according to the operation pump pressure and power consumption. It plays an important role for scientific fracturing design.
出处
《石油钻采工艺》
CAS
CSCD
北大核心
1996年第5期91-94,共4页
Oil Drilling & Production Technology
关键词
裂缝延伸
压力梯度
压力系数
压裂设备
井下工具
fracture extension pressure gradient formation pressure coefficient fracturing equipment downhole tool fracturing operation parameter
