QF矿区无水芒硝矿精细描述及开发对策

摘要

According to the historical well analysis of QF mining area and its surrounding areas located in Hongze Sag, thenardite distributes mainly in the VIII and IX ore formations which located in the lower salt sub - member and the desali- nation sub -member around well S12. Fine description of thenardite indicates that these ore formations are steady in struc- ture and have tiny changes in sedimentation thickness, but they are absent in the north part. Thenardite distributes mainly in the south part of QF ore area, which is thicker and wider in the VIII ore formation than ones in the IX ore formation. In the XI ore formation,the thenardite only distributes around well S12. Lab test result discloses that the quality of thenardite in QF ore area is good and can be up to industry standards. Based on the character of ore layers, the interconnected horizontal well production technology is primary, a few single wells production technology is secondary.%根据对洪泽凹陷QF矿区及周边已钻井分析认为，矿区无水芒硝主要分布在下盐亚段的第Ⅷ、区矿层，以及S12井附近的淡化亚段。通过研究，认为探区内矿层构造稳定，沉积厚度变化小，但北部有缺失。无水芒硝主要分布在矿区南部，第区矿层分布范围小，厚度薄，而第Ⅷ矿层分布范围广，厚度大，第Ⅺ矿层只在S12井附近有分布。化验结果表明研究区的无水芒硝品级较好，符合工业指标要求。结合矿层特征，认为研究区宜采用水溶式对井生产为主，配合少量单井为辅的开发方式。