The 2nd Member of Kongdian Formation has been made up of a large number of oil shale and mudstone in the Kongnan aera of Huanghua depression around the Bohai Bay.In the Kongnan area,the lake basins were very large and...The 2nd Member of Kongdian Formation has been made up of a large number of oil shale and mudstone in the Kongnan aera of Huanghua depression around the Bohai Bay.In the Kongnan area,the lake basins were very large and deep during the deposition of the 2nd Member of Kongdian Formation.During that period,the lakes were sealed,uncommunicated with the sea water and the paleoclimate was very warm and wet in Kongnan area.Analyzing the content of the trace element and the rare earth element,carbon and oxygen isotope in the disquisition,The authors prove the two views correct.展开更多
大港孔南区块属高温高盐油藏,经多年注水开发,综合含水超过90%,如何提高此类油藏采收率成为油田稳产控产的主要工作,为此,开展了适合此类油藏条件的聚合物及表面活性剂筛选评价,开发出具有"抗温(78℃)、抗盐(30 000 mg/L)、抗钙镁(...大港孔南区块属高温高盐油藏,经多年注水开发,综合含水超过90%,如何提高此类油藏采收率成为油田稳产控产的主要工作,为此,开展了适合此类油藏条件的聚合物及表面活性剂筛选评价,开发出具有"抗温(78℃)、抗盐(30 000 mg/L)、抗钙镁(500 mg/L)"特性的功能型聚/表二元驱体系。应用小分子缔合聚合物、高效石油磺酸盐表面活性剂及其它助剂(合成了聚/表二元驱体系),体系黏度达到90 m Pa·s,界面张力达到10-3 m N/m数量级,乳化性强。利用该体系进行岩心驱油实验,提高采收率明显,现场试验提高采收率成效显著。展开更多
基金Supported by Project of Dagang Branch of Petroleum Group Company Ltd,CNPC No TJDG-JZHT-2005-JSFW-0000-00339
文摘The 2nd Member of Kongdian Formation has been made up of a large number of oil shale and mudstone in the Kongnan aera of Huanghua depression around the Bohai Bay.In the Kongnan area,the lake basins were very large and deep during the deposition of the 2nd Member of Kongdian Formation.During that period,the lakes were sealed,uncommunicated with the sea water and the paleoclimate was very warm and wet in Kongnan area.Analyzing the content of the trace element and the rare earth element,carbon and oxygen isotope in the disquisition,The authors prove the two views correct.
文摘大港孔南区块属高温高盐油藏,经多年注水开发,综合含水超过90%,如何提高此类油藏采收率成为油田稳产控产的主要工作,为此,开展了适合此类油藏条件的聚合物及表面活性剂筛选评价,开发出具有"抗温(78℃)、抗盐(30 000 mg/L)、抗钙镁(500 mg/L)"特性的功能型聚/表二元驱体系。应用小分子缔合聚合物、高效石油磺酸盐表面活性剂及其它助剂(合成了聚/表二元驱体系),体系黏度达到90 m Pa·s,界面张力达到10-3 m N/m数量级,乳化性强。利用该体系进行岩心驱油实验,提高采收率明显,现场试验提高采收率成效显著。
