摘要
川西某气田位于四川龙门山山前带川西坳陷 ,已发现侏罗系沙溪庙组、上三叠统香四、香二段 3个气藏及中三叠统雷四段高压高产盐卤矿藏 ,为多产层、多储盖组合的复合型气田〔1〕。三叠统雷四段盐卤矿藏为一富钾富硼高浓卤水 ,K+、B3+组分异常高 ,其含量分别达 53.2 7g/L和 4994mg/L ,远超过综合利用和单独开采工业品位 ,为世界罕见的液态钾硼资源。且富含Br- 、I- 、Sr2 +、Li+、Rb+等多种有用组分 ,品质优异 ,构成优质的化工原料水 ,实际上它是一种高品质的以钾、硼为主的具有很高经济和开发利用价值的综合性液态矿藏。本文着重论述三叠系雷四段富钾富硼高浓卤水的水文地球化学特征和成因及其勘查开发前景。
One gas field in West Sichuan is located in West Sichuan Depression in the frontal zone of Longmenshan Mountains in Sichuan,in which three gas reservoirs in the Shaximiao Formation of Jurassic and the fourth and second members of Xiangxi Formation of Upper Triassic and a brine pool with high-pressure and high-production in the fourth member of Leikoupo Formation of Middle Triassic have been found,being a combination field with multiple-zone and multiple reservoir-seal assemblage.The brine pool contains potassium-rich and boron-rich high-concentration brine water and the K + content and B 3+ content are 53.27 g/l and 4994 mg/l respectively,which far exceed the industrial grades for comprehensive utilization and stand-alone production,being the rare liquid potassium-boron resources in the world.This brine water is also rich in many other useful constituents as Br -,I -,Sr 2+ ,Li + and Rb +,etc.,being a high-quality raw material water applied in chemical industry.Essentially,it is a compound high-quality liquid pool,which mainly contains potassium and boron and is of greatly economic value to development and utilization.The hydrogeochemical characteristics and genesis of the brine water and its exploration and development prospects are emphatically expounded in the paper.
出处
《天然气工业》
EI
CAS
CSCD
北大核心
2000年第5期9-14,共6页
Natural Gas Industry
关键词
气田水
卤水
地球化学特征
川西地区
三叠系
West Sichuan,Gas field water,Potassium-rich and boron-rich high-concentration brine,Geochemical characteristic,Development evaluation
