CAJ | 학술논문

Br和I是卤族元素的重要成员,I用于油气勘查取得了较好的找矿效果,但是,目前还未见到国外有关Br元素勘查油气的报道.应用松辽盆地中部8.15×104km2的多目标地球化学勘查数据,在研究土壤Br元素近地表影响因素的基础上,试验了表层土壤Br和深层土壤Br的区域地球化学异常对油气的指示意义.在松辽盆地中部发现了表层土壤Br的地球化学巨省和深层土壤Br的地球化学巨环,它们与油气富集区带、大中型油气田和火山岩油气藏相联系.土壤Br元素的表生地球化学作用和油气微渗漏是表层巨省和深层巨环形成的主要机制,因而,土壤Br元素也是战略性油气地球化学填图的一个新的辅助指标.
Br화I시서족원소적중요성원,I용우유기감사취득료교호적조광효과,단시,목전환미견도국외유관Br원소감사유기적보도.응용송료분지중부8.15×104km2적다목표지구화학감사수거,재연구토양Br원소근지표영향인소적기출상,시험료표층토양Br화심층토양Br적구역지구화학이상대유기적지시의의.재송료분지중부발현료표층토양Br적지구화학거성화심층토양Br적지구화학거배,타문여유기부집구대、대중형유기전화화산암유기장상련계.토양Br원소적표생지구화학작용화유기미삼루시표층거성화심층거배형성적주요궤제,인이,토양Br원소야시전략성유기지구화학전도적일개신적보조지표.
Bromine is an important member of the halogen family, nevertheless, reports on its use for oil and gas exploration have not been seen in spite of the fact that good results have been achieved in applying iodine to oil and gas prospecting. Based on an analysis of near-surface factors influencing soil bromine, the authors used multi-purpose geochemical prospecting data over an area of 8.15× 104km2 in central Songliao Basin to verify the significance of geochemical anomalies of surface soil bromine and deep soil bromine for the indication of oil and gas. A huge surface geochemical mega-province and a huge deep geochemical ring of soil bromine were dis-covered in the central Songliao Basin, which are related to oil-and gas-rich belts, large and medium oil and gas fields as well as vol-canic gas reservoirs. The supergene geochemical process of soil bromine, in conjunction with micro-infiltration of oil and gas, is the main mechanism creating the huge surface province and the deep huge ring;however, the supply of abundant material from the oil-and gas-rich belts, together with large and medium oil and gas fields is essential for huge bromine geochemical anomalies. In conclu-sion, bromine is an auxiliary index for strategic oil and gas geochemical mapping.