With regard to chemical pipeline corrosion and leakage,it put forward repair method of using air biliary filled up leakage and replacing pipe section containing corrosion,and make details instruction of operation and attention items.

Different from the traditional hard shipping blocking materials used to block the damaged holes from the inside, this type of blocking gas bag is a kind of soft material which is adopted to conduct the leakage blocking from the outside, making itself more scientific and practical.

Sealing Technical Research and Application in Complex Pressure Strata of Long Open Hole in Deep Well;

Research and application of sealing and plugging technique using GSY highwatercontent swelling diagenetic agent.;

Mechanism and experiment of physical leak resistance and sealing while drilling

Investigation on new thixotropic cement system for lost circulation control in vug-fracture type complex wells;

The paper discussed reservoir protection and drilling fluid technique in drilling process of coal bed methane,and the lost circulation control,coring,cementing technique as well.

This paper introduces the drilling fluids and lost circulation control technology applied in Jinchang gold mine,and takes an example of diamond wire-line coring drilling well(ZK-0003) to illustrate the high efficiency,low cost and stable hole wall.

Application of MTC plugging technology in Llaohe oilfield.;

Cavern accurately-detecting research & application on plugging in cavern under powerhouse foundation ditch of Yinzidu Hydropower Station;