摘要寻找新的石油和天然气资源，持续向着更具挑战性的地区行进，这导致所涉及公司的投资规模和风险都在加大。The quest for new oil and gas resources continues to move toward ever more challenging areas, resulting in an increase in the level of investment and risk for the companies involved.
出处《经济导报（石油天然气）》
2007年第1期1-1,共1页
Oil & Gas Technology
