Analysis on Rebuilding Qianshan Oil Reservior in Ren Well 11 into An Underground Gas Storage;

The central intelligent monitoring system for refinery scattered water wells is developed based upon the existing conditions of refinery water supply system.

Research on rock breaking test with pick rolling cuter for mine shaft rising boring;

Study on finite multi-well test model of heavy oil thermal recovery;

This paper,the finite multi-well test model with consideration of heat loss and adjacent production wells is established based on the characteristics of seepage flow of heavy oil reservoir.

The paper presents drilling progresses and main technical challenges for deep and ultra-deep wells, analyzes deep and ultra-deep drilling-technique actualities worldwide from seven aspects including drilling geological descriptions and evaluations, rapid-vertical drilling techniques, ROP improvement, mud, cementing, drilling information and drilling equipment.

This paper describes the effects of hydraulic energy for deep drilling, discusses some key problems on the study and applications of hydraulic power for deep drilling.

Based on the investigation of various deep drilling techniques in which the depth exceeds 4,500 metes in the recent twenty five years, it is considered that the drilling techniques during US and North Sea of Europe are the advanced in the world and there is a tenyear gap between them and former Soviet Union and China.