大庆外围东部葡萄花油层酸渣伤害机理研究

从立足于研究大庆外围葡萄花油层原油防止酸渣形成的方法入手，从原油胶质沥青质、酸液类型、三价铁离子和各种类型的杭渣别等方面，考察了大庆外围葡萄花油层的原油(一个区块)与酸接触，形成酸渣的可能性。室内实验表明，盆酸和土酸与原油形成酸渣的趋势强于磷酸和乙酸，酸渣量达19以上;酸渣童随着Fe，平浓度的增加而增加;残酸和乏酸也能形成一定量的酸渣;好的杭渣剂能明显减少酸渣生成量。这为预防酸渣形成，保证酸化施工质童和效果，提供了良好的理论基础。.

STUDY OF SLUDGE DAMAGE MECHANISM FOR PUTAOHUA RESERVOIR IN THE EAST OF DAQING PERIPNFRAL OILFIFID

In order to prevent the acid sludge forming during acidizing treatment for Putaohua formation in Daqing peripheral oilfield, the research on colloid and bitumen in oil , acid system , ferricion and anti-sludge agent has been carried out to determine the possibility of sludge forming. Indoor experiments show that hy-drogen- chloride and mud acid have stronger trend of causingsludge than phosphoric acid and acetic acid when contact with oil, which produce above 1 g sludge. Additionally the sludge in-creases with the higher concentration of ferric ion, and the spentacid also can produce some sludge, suitable anti-sludge agent can inhibit the forming of sludge obviously. It provides a better theoretical foundation for preventing sludge forming and guaran-teeing the acidizing effect.