摘要
四川盆地卤水分布广泛，资源丰富，早为世人所瞩目，中三叠统雷口坡组是四川盆地最早开采天然气和盐卤的层系之一。根据盆地雷口坡组大量钻井资料研究表明，盆地雷口坡组主要成盐期分别为雷三2期和雷四2期，在盆地东部和南部由于受到古隆起的影响，盐岩地层已被剥蚀难以保存，现今盐岩主要分布在开江古隆起和泸州古隆起的西部以及天井山古隆起的南部（华蓥山以西一龙门山以东的川西川中地区）。印支运动对盆地雷口坡组盐岩在平面的迁移起着十分重要的作用，根据不同时期盐岩统计数据看，两期盐盆在平面上具有向西迁移、叠加的特征，其中川中的GS1井就钻遇了这两期的盐岩。
Abstract： Middle Triassic Leikoupo group is one of the earliest formations where nature gas and salt brine were exploited in Sichuan Basin. The large number of drilling data from Leikoupo indicate that the period of the Leikoupo salt is T_2l_3^2 and T_2l_4^2, respectively. Eastern and southern basin due to the effect of palaeohigh, the ancient salt rock strata have been eroded and hard to conserve, today, the salt formation mainly exist in the Kaijiang palaeohigh and Luzhou west palaeohigh, as well as Tianjing mountain. Indo-Chinese movement plays an important role in the horizontal migration of salt rock of Leikoupo group. According to statistical data of rock salt in different periods, two salt basins in the plane display a feature of westward migration and superimposition. An examlpe of such feature is Well Gongshan 1 on the two phases of rock salt in middle Sichuan Basin.
出处
《西南石油大学学报（自然科学版）》
CAS
CSCD
北大核心
2013年第2期37-42,共6页
Journal of Southwest Petroleum University(Science & Technology Edition)
关键词
雷三2期
雷四2期
迁移
叠加
四川盆地
T_2l_3^2 period
T_2l_4^2 period
migrate
super in position
Sichuan Basin
