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“边际油田”是指由于各种原因 (地理、地质、技术或征税 )以及在给定的经济条件下被测定为用常规方法开发没有足够经济效益的油田。目前 ,北海有 30 0多个油田 ,总储量超过 80× 1 0 8bbl ( 1 30 0× 1 0 6 m3)。多数边际油田都远离现有的基础设施。随着对石油需求的不断增长 ,开发这些油田的战略显得非常重要 ,并将使多数国家保持石油工业对经济的影响 ,有利于能源独立、贸易平衡、工业投资和解决就业。在目前条件下 ,这些油田只能靠采用先进的技术 (三维地震、水平钻井、多相采油、轻结构 )及油公司与其供应商之间密切的合作来开发。
“Marginal oil fields” are those fields that, for a variety of reasons (geography, geology, technology or taxation) and under certain economic conditions have been determined as not being economically viable by conventional methods. At present, there are more than 30 oil fields in the North Sea with total reserves exceeding 80 × 108bbl (130 × 106m 3). Most of the marginal oil fields are far away from the existing infrastructures. With the increasing demand for oil, the strategy of developing these fields is of great importance and will enable most countries to maintain the economic impact of the oil industry in favor of energy independence, trade balance, industrial investment and employment settlement. Under the current conditions, these fields can only be developed by using advanced technologies (3D seismic, horizontal drilling, multiphase production, light construction) and close cooperation between oil companies and their suppliers.