Drilling fluid system name

Acidic gel breaking system for horizontal wells

Matching core finishing agent

Clay stabilizer HCS    Acid breaking agent HGB    Corrosion inhibitor HCI    Water proof lock agent HAR / drag reducer HUL

System characteristics

1、It can relieve the blockage that caused by water-soluble macromolecules in the mud cake near the shaft lining;

2、It can effectively remove the damage that caused by acid soluble heavy weighting materials in the mud cake near the well wall;

3、It has good compatibility with formation fluids and pre operation fluids;

4、The gas-liquid surface tension of the breaker system with the addition of the waterproof lock agent HAR is ≤20mN/m, which can better prevent the water lock damage of the low permeability reservoir;

5、The oil-liquid interfacial tension of the breaker system with the addition of drag reducing agent HUL is<1.0mN/m, which can better reduce the flow resistance of heavy oil and improve the seepage characteristics of heavy oil;

6、The reservoir protection effect is good.

Application situation

Five wells such as PL-24H, FK-11H, FM-31H, Assel-15H and FN-26H in the 3/7 district of Sudan, as well as Jidong oilfield and Xinjiang oilfield have achieved good application results.

• 上一条信息：New integrated chemical sand control and sand consolidation fluid system
• 下一条信息：没有了!