目前,国际上油气开发项目合同主要分三种:产量分成合同(PSC)、矿税制合同和服务合同(包括回购合同)。我国陆上油田开发实行的是矿税制合同,与国外相比除在税费设置上有区别外,差异不大,且国内油气田开发经济评价有着较多研究,这里不再赘述。而回购合同与PSC合同,近几年国 At present, the international oil and gas development project contracts are mainly divided into three types: production sharing contracts (PSC), mining tax contracts and service contracts (including repurchase contracts). China’s onshore oilfield development is the implementation of the mining tax contract, compared with foreign countries in the tax set apart, the difference is not significant, and the economic evaluation of domestic oil and gas development have more research, not repeat them here. The repurchase contract and the PSC contract, in recent years