Sedimentary Permeability Coefficient And Variation Characteristics Of The Brine Compositionof Kunty Salt Lake Under The Background Of Filling Water

Kunty Salt Lake Is a comprehensive minerals mainly the brine, Due to the large number of sustainable mining the rich brine potassium, the brine resources in the shortage situation. How to fully use the potential of salt lake resources effectively?Should not only keep the continuous supply of salt lake brine resources, but ensure the stability of chemical components and suitable for salt lake brine processing technology,Is a major problem of science and technology that affect the salt lake potash resource efficient and orderly development of our country. This paper aims at the theory problem, put The 13 hydrological observation hole in the study area as the research object, using the methods of pumping test and element geochemistry, carried out under the background of artificial filling water solid-liquid conversion rule research. Analysis and contrast of permeability coefficient K of 13 hole pumping experiment three times(one month each time interval) and the hole brine composition variation characteristics, For the sustainable development and utilization of the resources in the studied area provide the important theoretical guiding significance.By analyzing the three times of permeability coefficient and the change of pore brine composition, mainly got the following conclusions:1.permeability Coefficient of study area is low, including ZKG01, ZKG03, ZKG12, ZKG13 hole than the increase for the first time, than the decreases for the srcond time, and the change trend of increase after decreases first. While ZKG02, ZKG04, ZKG05, ZKG06, ZKG07, ZKG08, ZKG09, ZKG10, ZKG11 hole than the decreased for the first time, than the increased for the srcond time,the trend of first decreased and then increased.The main reason of permeability coefficient decrease is temperature drop, mirabilite of precipitation blocking pores.2.permeability coefficient of Confined aquifer significantly smaller than Unconfined aquifer, artificial filling water mainly concentrated in the central region, therefore in northern and central permeability coefficient is larger, smaller in the south.3.the order of the major cationics content in brine is Na+﹥Mg2+﹥K+﹥Ca2+ ﹥B2O3﹥Li+,, and the minor anionics is Cl-﹥SO42-﹥HCO3-; three analysis results of ZKG02, ZKG05, ZKG06, ZKG11, ZKG12 hole, the average concentration of all showed a trend of decrease; ZKG04 hole average concentration showed a trend of fall after rise first; ZKG03, ZKG07, ZKG08, ZKG09, ZKG10, ZKG13 hole average concentration showed a trend of increase, average ion concentration changes of ZKG02 holes is most obvious; Three analysis results show that,: concentration of Na+、K+、Mg2+、Ca2+、Li+、Cl-、HCO3- in ZKG01, ZKG02, ZKG03, ZKG04, ZKG05, ZKG06 hole decreases continuously.4.Overall,a trend of increase the permeability coefficient decrease, and the ion concentration is on the decline, especially ZKG02, ZKG05, ZKG06 hole area, permeability coefficient of test hole and ion concentration decreases illustrates the underground brine in the process of filling water in a flow state, At the same time the porosity increases, further open the filling water channel, reached the expected research goal.