PROJECT CHALLENGE
ENTI undertook simultaneous and zipper fracturing services for four horizontal wells in Qian'an for PetroChina. The reservoir was tight with low permeability, presenting a high degree of difficulty for volume fracturing.

SOLUTIONS 
We adopted a staged fracturing technique with composite plug and E-FRAC open hole external casing packer. Two of these wells used different techniques for simultaneous fracturing and the remaining two wells used composite plug to perform zipper fracturing. The comparison of reservoir stimulation effects between different techniques, stages, clusters and scales was made.

ACHIEVEMENTS 
All wells were successfully treated in a simultaneous and zipper fracturing operation and a production breakthrough was made while acquiring valuable correlation data and treatment experience.