复杂油气藏
複雜油氣藏
복잡유기장
COMPLEX HYDROCARBON RESERVOIRS
2012年
4期
70-72
,共3页
层内自生气%二氧化碳%驱油%采收率
層內自生氣%二氧化碳%驅油%採收率
층내자생기%이양화탄%구유%채수솔
in - situ carbon dioxide generation%carbon dioxide%oil displacement%oil recovery
CO2驱被认为是提高采收率最有效的方法之一，制约其应用的主要因素就是气源问题，以及腐蚀、安全和环境影响等。在室内进行了层内生气体系单液法的研究，优选出适应性强、经济可行的复配生气体系，并通过高压测试、驱油实验对其效果进行了评价。实验结果表明优化后的体系具有生气量大、无腐蚀、溶解性能好、反应受温度控制的特点，该体系适合在温度大于70℃的油藏中使用，其采收率可提高4％左右。
CO2驅被認為是提高採收率最有效的方法之一，製約其應用的主要因素就是氣源問題，以及腐蝕、安全和環境影響等。在室內進行瞭層內生氣體繫單液法的研究，優選齣適應性彊、經濟可行的複配生氣體繫，併通過高壓測試、驅油實驗對其效果進行瞭評價。實驗結果錶明優化後的體繫具有生氣量大、無腐蝕、溶解性能好、反應受溫度控製的特點，該體繫適閤在溫度大于70℃的油藏中使用，其採收率可提高4％左右。
CO2구피인위시제고채수솔최유효적방법지일，제약기응용적주요인소취시기원문제，이급부식、안전화배경영향등。재실내진행료층내생기체계단액법적연구，우선출괄응성강、경제가행적복배생기체계，병통과고압측시、구유실험대기효과진행료평개。실험결과표명우화후적체계구유생기량대、무부식、용해성능호、반응수온도공제적특점，해체계괄합재온도대우70℃적유장중사용，기채수솔가제고4％좌우。
Up to now, carbon dioxide injection is one of the more efficient methods of enhanced oil recovery (EOR) particularly in the case when miscibility develops. But the technology development was restricted by the source, corrosive- ness, environmental effect, and safety of carbon dioxide. An in - situ carbon dioxide generation technology to enhance oil recovery was proposed. In lab, an adaptable and feasible single - liquid formula, which is used in - situ carbon dioxide gen- eration ,was selected to study its effectiveness by using high - pressure testing and oil displacement instruments. Lab results show that the optimizing formula has large generation gas volume, non - corrosive, good solubility, and reaction rate con- trolled by temperature,which can be applied in more than 70 ℃ reservoirs and increase oil recovery by about 4%.
