Study Progresses of Hydraulic Fracturing Technology

Hydraulic Fracturing plays an important part in development of low permeability,Ultra-low permeability oil and gas field.Based on the analysis of difficulties and influence factors of refracturing and fracturing in complex wells,this paper expounds the current situation and development of water base fracturing fluid and fracturing damage.The high-efficiency low-damage low-cost and high-temperature resistant fresh water fracturing fluid system,low-damage fracturing fluid system and high-temperature resistant clean fracturing fluid system will be used wildly.Liquid invasion and solid plugging are the main factors of fracturing damage,therefore the research of low-damage fracturing fluid system,fracturing design,flowback technology and broken down measures should be done to avoid secondary damage.