美国油气田采出水的处置与利用

Management of Produced Water in U.S.Oil and Gas Fields

美国油气田采出水除回注外,主要还有地下灌注、地表排放、农业灌溉等方式,多途径实现采出水的资源化利用,但同时也带来了地下处置可能引发地震、浅层处置可能影响含水层、浅层处置导致地层压力增大的风险。通过对美国油气田采出水管理方式的研究,为国内油气田采出水的处置及资源化利用提供借鉴。

Simple treatment before re-injection of oil-field water are often used in domestic oil and gas fields which does not utilize the water resource effectively.In addition,the investment and cost of oil and gas field development are increased,and the development profits are reduced accordingly.The United States has underground irrigation,surface drainage,agricultural irrigation and other ways to achieve the multi-channel utilization of produced water besides re-injection.However,earthquake might be induced by improper underground treatment,shallow layer treatment may also be risky increasing formation pressure and affect the shallow aquifer.Based on the study of the management model of produced water in American oil and gas fields,this paper provides references and suggestions for the pollution prevention and utilization of produced water in domestic oil and gas fields.