Based on the investigation on the production of oil peony( Paeooia suffruticosa Andr.) in the main producing areas in Hubei Province,the current situations and problems faced by oil peony industry were analyzed.The oi...Based on the investigation on the production of oil peony( Paeooia suffruticosa Andr.) in the main producing areas in Hubei Province,the current situations and problems faced by oil peony industry were analyzed.The oil peony industry is in the adjustment period after years of development in Hubei Province,and the following suggestions were proposed for its further development.First,make full use of the ornamental value of peony and carry out the theme eco-tourism of peony.Second,make full use of the advantages of local resources and develop resource evaluation and utilization.Third,promote the intensive processing of oil peony and extend the industrial chain of products.展开更多
The first pilot test of polyacrylamide microsphere alternate surfactant flood(PMAS)with mixtures of anionic-cationic surfactants(Sa/c)was carried out for a high-temperature,high-salinity,and highhardness sandstone res...The first pilot test of polyacrylamide microsphere alternate surfactant flood(PMAS)with mixtures of anionic-cationic surfactants(Sa/c)was carried out for a high-temperature,high-salinity,and highhardness sandstone reservoir to demonstrate the potential of this novel technique to improve oil recovery.A critical micelle concentration(CMC)of 4.82 mg/L,an ultralow interfacial tension(IFT)of 8104 mN/m,and a high oil solubilization of 22 were obtained.Static and dynamic adsorptions of Sa/c on natural core containing 15 wt%clay were reduced to about 2.20 and 0.30 mg/g-core,respectively,with the addition of adsorption inhibitor(AI).Since June 2014,the pilot test of PMAS was carried out in a Sinopec reservoir with a temperature of 87C,a salinity of 260,393 mg/L,and a hardness of 6,401 mg/L.Twelve cycles of alternative injection of 0.0125 PV Sa/c with a concentration of 0.1%and 0.0125 PV polyacrylamide microsphere with a concentration of 0.2%were conducted at an injection rate of 0.1 PV/yr,for a total of 0.3 PV chemical injection.As a result,the net daily oil production increased from 0 t to 6.5 t,and the water cut decreased from 96.3%to 93.8%,leading to an ultimate improved oil recovery of 6.3%original oil-in-place.展开更多
基金Supported by the Project of Hubei Agricultural Science and Technology Innovation Center 2016-620-000-001-070)
文摘Based on the investigation on the production of oil peony( Paeooia suffruticosa Andr.) in the main producing areas in Hubei Province,the current situations and problems faced by oil peony industry were analyzed.The oil peony industry is in the adjustment period after years of development in Hubei Province,and the following suggestions were proposed for its further development.First,make full use of the ornamental value of peony and carry out the theme eco-tourism of peony.Second,make full use of the advantages of local resources and develop resource evaluation and utilization.Third,promote the intensive processing of oil peony and extend the industrial chain of products.
文摘The first pilot test of polyacrylamide microsphere alternate surfactant flood(PMAS)with mixtures of anionic-cationic surfactants(Sa/c)was carried out for a high-temperature,high-salinity,and highhardness sandstone reservoir to demonstrate the potential of this novel technique to improve oil recovery.A critical micelle concentration(CMC)of 4.82 mg/L,an ultralow interfacial tension(IFT)of 8104 mN/m,and a high oil solubilization of 22 were obtained.Static and dynamic adsorptions of Sa/c on natural core containing 15 wt%clay were reduced to about 2.20 and 0.30 mg/g-core,respectively,with the addition of adsorption inhibitor(AI).Since June 2014,the pilot test of PMAS was carried out in a Sinopec reservoir with a temperature of 87C,a salinity of 260,393 mg/L,and a hardness of 6,401 mg/L.Twelve cycles of alternative injection of 0.0125 PV Sa/c with a concentration of 0.1%and 0.0125 PV polyacrylamide microsphere with a concentration of 0.2%were conducted at an injection rate of 0.1 PV/yr,for a total of 0.3 PV chemical injection.As a result,the net daily oil production increased from 0 t to 6.5 t,and the water cut decreased from 96.3%to 93.8%,leading to an ultimate improved oil recovery of 6.3%original oil-in-place.
