加重材料复配对高密度钻井液滤失造壁性的影响  

Effect of Weighting Materials Mixture on Wall Building Properties of High-Density Drilling Fluid

作　　者：韩成 邱正松[2] 许发宾 魏安超 刘智勤 

机构地区：[1]中海石油(中国)有限公司湛江分公司,广东湛江524057 [2]中国石油大学(华东)石油工程学院,山东青岛266580

出　　处：《辽宁石油化工大学学报》2015年第5期42-44,共3页Journal of Liaoning Petrochemical University

基　　金：国家自然科学基金资助项目(51374233);国家十二五科技重大专项子课题(2011ZX05030-005-07)

摘　　要：研究了四氧化三锰与传统的加重材料(重晶石、铁矿粉)按不同质量比加重的高密度钻井液的滤失造壁性。实验结果表明,对采用相对单一的加重材料加重的高密度钻井液,当四氧化三锰与重晶石和铁矿粉按较优的质量比复配时,球形的四氧化三锰小颗粒对重晶石和铁矿粉大颗粒的充填效果较明显,得到的泥饼较致密。当四氧化三锰与重晶石、铁矿粉分别按1∶4和2∶3的质量比复配加重时,高密度钻井液滤失量小,而且泥饼渗透率较低。Wall building properties of high-density drilling fluid weighted with manganese tetroxide and traditional weighting materials（barite,iron ore powder）in different proportion were studied.Experimental results show that high-density drilling fluid weighted with the compound of manganese tetroxide and traditional weighting materials were synthesized in the optimum proportion,the effect of small size and spherical manganese tetroxide particles filled into large size barite or iron ore particles was more obviously than one single weighting materials.When high-density drilling fluid was weighted with manganese tetroxide with barite and iron ore respectively according to the quality ratio of 1∶4and 2∶3,filtration and permeability of cake was lower.

关 键 词：加重材料 高密度钻井液 四氧化三锰 滤失造壁性 粒度分布 

分 类 号：TE254[石油与天然气工程—油气井工程]