In order to improve the horizontal well completion,cementing in build-up section plus ECP sectionalized screen completion,liner hangering plus cementing in build-up section plus ECP VariSPF screen completion,uniform acidification string of hydraulic jetting as well as junk preventing string were developed according to geologic characteristics of different complicated fault block oil reservoirs.

Experimental study of sand control string used for fracturing/gravel packing;

A new squeeze packing sand control string.;