福山油田保护油气层钻井完井液技术研究

Research on Drilling and Completion Fluid Technology for Protection of Oil-Gas Formations in Fushan Oilfield

摘要:

福山油田为典型凝析油气藏，储层孔隙度10%～20%，平均渗透率35?10-3 μm2，属于中孔低渗储层，部分为低孔特低渗储层，且水敏、易塌。通过试验选用了以XZD-Ⅱ为暂堵剂的屏蔽暂堵钻井完井液实施油气层保护，取得了较好的保护效果。

Abstract:

Fushan oilfield is a typical condensate reservoir. The reservoir porosity is 10%～20%.The average reservoir permeability is 35×10-3μm2. It belongs to medium porosity and low permeability reservoir, and part being with low porosity and extra-low permeability. It is water sensitive and easy to collapse. By the test, XZD-Ⅱtemporary plugging agent was selected as shielding temporary plugging drilling and completion fluid to protect oil-gas formation with good effects.