松辽盆地油田开发建设对地质环境的负面影响——以大庆油田为例

松辽盆地中的大庆油田是我国主要油气生产基地，不但油气资源丰富，地下水和地热资源也非常丰富.经过半个多世纪的持续高强度开发建设，油田已进入开发中后期，综合含水率已达90%以上.大庆油田的地质环境受到了严重的负面影响，具体表现在：①含水层环境的破坏污染；②土壤环境的破坏污染；③对地层原始压力的影响；④地面隆起和沉降变形；⑤热储体系和地热资源的破坏.相关部门应予以足够的重视，及时开展调查评价监测和研究工作，采取有效防治措施.

NEGATIVE EFFECT OF THE DEVELOPMENT AND CONSTRUCTION IN THE OILFIELD IN SONGLIAO BASIN ON GEOLOGICAL ENVIRONMENT:A Case Study of Daqing Oilfield

The Daqing oilfield in Songliao Basin is one of the major oil and gas production bases of China, with abundant oil and gas resources as well as groundwater and geothermal resources. After more than half a century of sustained development and construction, Daqing oilfield has entered the middle and late stage of development. The comprehensive water content of the oilfield is up to 90% and more. Due to the development and construction of high strength, the geological environment of the oilfield is badly affected, specifically in the following aspects: 1) pollution of aquifer environment; 2) pollution of soil environment; 3) influence on the original pressure of strata; 4) ground uplift and subsidence; and 5) destruction of geothermal reservoir and geothermal resources. It should be paid great attention to immediately carry out investigation, evaluation, monitoring and research work and take countermeasures.