An improved numerical simulation method is presented to calculate the downhole temperature distribution for multiple pay zones in producing oil wells. Based on hydrodynamics and heat transfer theory, a 2-D temperature...An improved numerical simulation method is presented to calculate the downhole temperature distribution for multiple pay zones in producing oil wells. Based on hydrodynamics and heat transfer theory, a 2-D temperature field model in cylindrical coordinates is developed. In the model, we considered general heat conduction as well as the heat convection due to fluid flow from porous formation to the borehole. We also take into account the fluid velocity variation in the wellbore due to multiple pay zones. We present coupled boundary conditions at the interfaces between the wellbore and adjacent formation, the wellbore and pay zone, and the pay zone and adjacent formation. Finally, an alternating direction implicit difference method （ADI） is used to solve the temperature model for the downhole temperature distribution. The comparison of modeled temperature curve with actual temperature log indicates that simulation result is in general quite similar to the actual temperature log. We found that the total production rate, production time, porosity, thickness of pay zones, and geothermal gradient, all have effects on the downhole temperature distribution.展开更多
A new method for manufacturing explosive charge liner of petroleum perforation bullet, using hot press sintering technique, has been introduced in the paper. The sintering process of making explosive charge liner has...A new method for manufacturing explosive charge liner of petroleum perforation bullet, using hot press sintering technique, has been introduced in the paper. The sintering process of making explosive charge liner has been investigated. The mechanical test and SEM analysis indicate that the property of the liner produced by the process is satisfied.展开更多
With the development of Chinese economy at high speed continuously for a decade,the oil consumption has entered into a fast increasing phase that with yearly average increase rate of 7.1%.
E-commerce is known as the most advanced business mode, being the new point for global economic growth in 21 century. Comparing to the traditional purchase mode, E-commerce is available for reducing the purchasing cos...E-commerce is known as the most advanced business mode, being the new point for global economic growth in 21 century. Comparing to the traditional purchase mode, E-commerce is available for reducing the purchasing cost and improving the working efficiency, thus lifting the whole benefit for the company through centralized purchasing.展开更多
On July 8th, 2005, China＇s largest integrated oil refining and chemical joint-venture project was officially launched in Quanzhou, Fujian Province, indicating that another petrochemical base is growing up following S...On July 8th, 2005, China＇s largest integrated oil refining and chemical joint-venture project was officially launched in Quanzhou, Fujian Province, indicating that another petrochemical base is growing up following Sinopec Qilu Petrochemical Company, Sinopec Beijing Yanhua Petrochemical Co. Ltd,展开更多
The trial of oil displacement driven by natural gas injection in China has been successfully accomplished recently for the first time in Zhongyuan Oilfield, Henan Province. This technology is ready for oilfield applic...The trial of oil displacement driven by natural gas injection in China has been successfully accomplished recently for the first time in Zhongyuan Oilfield, Henan Province. This technology is ready for oilfield application in July.展开更多
SinoCanada, a subsidiary of Sinopec International Petroleum Exploration and Development Corporation, and Canada-based Synenco Energy Inc announced on May 31 that they have inked a series of agreements to launch a join...SinoCanada, a subsidiary of Sinopec International Petroleum Exploration and Development Corporation, and Canada-based Synenco Energy Inc announced on May 31 that they have inked a series of agreements to launch a joint venture for common development of the oil sand project located in Athabasca region of Northeast Canada＇s Alberta Province. Based on the agreements, Sinopec will pay 105 million Canadian dollars （USS84 million） for a stake in Canada＇s Northern Lights oil sands project while Synenco owns the remaining 60 percent share, and will operate the project as the managing partner.展开更多
In June 22, a ground breaking ceremony was warmly held for Qingdao Refining Project. It marked that the construction of Qingdao Refining Project have entered into a fast progressing period, and that the construction o...In June 22, a ground breaking ceremony was warmly held for Qingdao Refining Project. It marked that the construction of Qingdao Refining Project have entered into a fast progressing period, and that the construction of a ten-million-ton refinery “being the first level in the world and taking the lead in China”in the 21st century have been completely launched.展开更多
Sinopec and Qingdao Port Group held a formal ceremony to sign the “joint venture contract and the issues of association for Qingdao Shihua Crude Oil Wharf Co. Ltd.”on June 21,2005. This is another association betwee...Sinopec and Qingdao Port Group held a formal ceremony to sign the “joint venture contract and the issues of association for Qingdao Shihua Crude Oil Wharf Co. Ltd.”on June 21,2005. This is another association between the both parties since they formed a strategic alliance on the successful transfer of the 1.80 million cubic meters of crude oil tanks in 2001.展开更多
China＇s largest private petroleum group-the Great United Petroleum Holding Co.,Ltd（GUPC） announced its establishment in Beijing on June 29th,marking that the private enterprises are moving from being decentralized ...China＇s largest private petroleum group-the Great United Petroleum Holding Co.,Ltd（GUPC） announced its establishment in Beijing on June 29th,marking that the private enterprises are moving from being decentralized to unification,China＇s private oil industry is entering on a new stage of development. GUPC as a conglomerate initiated by several domestic private petroleum enterprises will mainly be engaged in oil exploration and production,展开更多
On June 15th 2005, Russian crude oil unloading reconstruction project of Nansan oil store, which has drawn much attention of the state, China National Petroleum Corporation （CNPC） and Daqing Oilfield, was successful...On June 15th 2005, Russian crude oil unloading reconstruction project of Nansan oil store, which has drawn much attention of the state, China National Petroleum Corporation （CNPC） and Daqing Oilfield, was successfully accomplished and put into operation, marking the start of large scale import of Russian crude and opening up a new era for Daqing Oilfield to involve in foreing crude trade.展开更多
PetroChina has got the preliminary approval from the central government for construction of three LNG terminals in the coastal areas of Jiangsu Province, Hebei Province and Liaoning Province. Reportedly, China＇s Nati...PetroChina has got the preliminary approval from the central government for construction of three LNG terminals in the coastal areas of Jiangsu Province, Hebei Province and Liaoning Province. Reportedly, China＇s National Development and Reform Commission （NDRC） has given green light to PetroChina to conduct preliminary work in constructing the three terminals”, a PetroChina senior vice-president recently said at an energy forum in Beijing.展开更多
The CifNet network multi-well data management system is developed for 100MB or 1000MB local network environments which are used in Chinese oil industry. The kernel techniques of CifNet system include: 1, establishing ...The CifNet network multi-well data management system is developed for 100MB or 1000MB local network environments which are used in Chinese oil industry. The kernel techniques of CifNet system include: 1, establishing a high efficient and low cost network multi-well data management architecture based on the General Logging Curve Theory and the Cif data format; 2, implementing efficient visit and transmission of multi-well data in C/S local network based on TCP/IP protocol; 3,ensuring the safety of multi-well data in store, visit and application based on Unix operating system security. By using CifNet system, the researcher in office or at home can visit curves of any borehole in any working area of any oilfield. The application foreground of CifNet system is also commented.展开更多
By means of selecting proper additives and optimizing catalyst composition and preparation procedures, a high-platinum and low coke deposition catalyst PS-Ⅶ for continuous catalytic reforming （CCR） without reducing...By means of selecting proper additives and optimizing catalyst composition and preparation procedures, a high-platinum and low coke deposition catalyst PS-Ⅶ for continuous catalytic reforming （CCR） without reducing its specific surface area has been successfully developed. This catalyst PS-Ⅶ was evaluated in a 100-mL pilot test unit. Study results showed that under the same reaction conditions the newly developed catalyst PS-Ⅶ achieved a 26% reduction in coke deposition as compared to the existing high-platinum CCR catalyst. This catalyst upon its first commercial application in a 1.39 Mt/a CCR unit had exhibited good anti-attrition performance and good stability in terms of its specific surface area. Compared to the original CCR catalyst this PS-Ⅶ type catalyst could reduce the coke deposition by 27.32% when operating on feedstock with low potential aromatic content, along with apparent increase in C6^＋ liquid yield, hydrogen yield and aromatics yield, which could grapple with the problem associated with the catalyst regeneration constraints after CCR capacity expansion to ensure the longcycle high-load operation of the CCR unit.展开更多
A hybrid approach using MLD (mixed logical dynamical) framework to handle infeasibility and constraint prioritization issues in MPC (model predictive control) based on input-output model is introduced. By expressing c...A hybrid approach using MLD (mixed logical dynamical) framework to handle infeasibility and constraint prioritization issues in MPC (model predictive control) based on input-output model is introduced. By expressing constraint priorities as propositional logics and by transforming the propositional logics into inequalities,the infeasibility and constraint prioritization issues are solved in the MPC. Constraints with higher priorities are met first, and then these with lower priorities are satisfied as much as possible. This new approach is illustrated in the control of a heavy oil fractionator-Shell column. The overall control performance has been significantly improved through the infeasibility and control priorities handling.展开更多
基金sponsored by the National Nature Science Foundation of China (Grant No. 40830424).
文摘An improved numerical simulation method is presented to calculate the downhole temperature distribution for multiple pay zones in producing oil wells. Based on hydrodynamics and heat transfer theory, a 2-D temperature field model in cylindrical coordinates is developed. In the model, we considered general heat conduction as well as the heat convection due to fluid flow from porous formation to the borehole. We also take into account the fluid velocity variation in the wellbore due to multiple pay zones. We present coupled boundary conditions at the interfaces between the wellbore and adjacent formation, the wellbore and pay zone, and the pay zone and adjacent formation. Finally, an alternating direction implicit difference method （ADI） is used to solve the temperature model for the downhole temperature distribution. The comparison of modeled temperature curve with actual temperature log indicates that simulation result is in general quite similar to the actual temperature log. We found that the total production rate, production time, porosity, thickness of pay zones, and geothermal gradient, all have effects on the downhole temperature distribution.
文摘A new method for manufacturing explosive charge liner of petroleum perforation bullet, using hot press sintering technique, has been introduced in the paper. The sintering process of making explosive charge liner has been investigated. The mechanical test and SEM analysis indicate that the property of the liner produced by the process is satisfied.
文摘With the development of Chinese economy at high speed continuously for a decade,the oil consumption has entered into a fast increasing phase that with yearly average increase rate of 7.1%.
文摘E-commerce is known as the most advanced business mode, being the new point for global economic growth in 21 century. Comparing to the traditional purchase mode, E-commerce is available for reducing the purchasing cost and improving the working efficiency, thus lifting the whole benefit for the company through centralized purchasing.
文摘On July 8th, 2005, China＇s largest integrated oil refining and chemical joint-venture project was officially launched in Quanzhou, Fujian Province, indicating that another petrochemical base is growing up following Sinopec Qilu Petrochemical Company, Sinopec Beijing Yanhua Petrochemical Co. Ltd,
文摘The trial of oil displacement driven by natural gas injection in China has been successfully accomplished recently for the first time in Zhongyuan Oilfield, Henan Province. This technology is ready for oilfield application in July.
文摘SinoCanada, a subsidiary of Sinopec International Petroleum Exploration and Development Corporation, and Canada-based Synenco Energy Inc announced on May 31 that they have inked a series of agreements to launch a joint venture for common development of the oil sand project located in Athabasca region of Northeast Canada＇s Alberta Province. Based on the agreements, Sinopec will pay 105 million Canadian dollars （USS84 million） for a stake in Canada＇s Northern Lights oil sands project while Synenco owns the remaining 60 percent share, and will operate the project as the managing partner.
文摘In June 22, a ground breaking ceremony was warmly held for Qingdao Refining Project. It marked that the construction of Qingdao Refining Project have entered into a fast progressing period, and that the construction of a ten-million-ton refinery “being the first level in the world and taking the lead in China”in the 21st century have been completely launched.
文摘Sinopec and Qingdao Port Group held a formal ceremony to sign the “joint venture contract and the issues of association for Qingdao Shihua Crude Oil Wharf Co. Ltd.”on June 21,2005. This is another association between the both parties since they formed a strategic alliance on the successful transfer of the 1.80 million cubic meters of crude oil tanks in 2001.
文摘China＇s largest private petroleum group-the Great United Petroleum Holding Co.,Ltd（GUPC） announced its establishment in Beijing on June 29th,marking that the private enterprises are moving from being decentralized to unification,China＇s private oil industry is entering on a new stage of development. GUPC as a conglomerate initiated by several domestic private petroleum enterprises will mainly be engaged in oil exploration and production,
文摘On June 15th 2005, Russian crude oil unloading reconstruction project of Nansan oil store, which has drawn much attention of the state, China National Petroleum Corporation （CNPC） and Daqing Oilfield, was successfully accomplished and put into operation, marking the start of large scale import of Russian crude and opening up a new era for Daqing Oilfield to involve in foreing crude trade.
文摘PetroChina has got the preliminary approval from the central government for construction of three LNG terminals in the coastal areas of Jiangsu Province, Hebei Province and Liaoning Province. Reportedly, China＇s National Development and Reform Commission （NDRC） has given green light to PetroChina to conduct preliminary work in constructing the three terminals”, a PetroChina senior vice-president recently said at an energy forum in Beijing.
文摘The CifNet network multi-well data management system is developed for 100MB or 1000MB local network environments which are used in Chinese oil industry. The kernel techniques of CifNet system include: 1, establishing a high efficient and low cost network multi-well data management architecture based on the General Logging Curve Theory and the Cif data format; 2, implementing efficient visit and transmission of multi-well data in C/S local network based on TCP/IP protocol; 3,ensuring the safety of multi-well data in store, visit and application based on Unix operating system security. By using CifNet system, the researcher in office or at home can visit curves of any borehole in any working area of any oilfield. The application foreground of CifNet system is also commented.
文摘By means of selecting proper additives and optimizing catalyst composition and preparation procedures, a high-platinum and low coke deposition catalyst PS-Ⅶ for continuous catalytic reforming （CCR） without reducing its specific surface area has been successfully developed. This catalyst PS-Ⅶ was evaluated in a 100-mL pilot test unit. Study results showed that under the same reaction conditions the newly developed catalyst PS-Ⅶ achieved a 26% reduction in coke deposition as compared to the existing high-platinum CCR catalyst. This catalyst upon its first commercial application in a 1.39 Mt/a CCR unit had exhibited good anti-attrition performance and good stability in terms of its specific surface area. Compared to the original CCR catalyst this PS-Ⅶ type catalyst could reduce the coke deposition by 27.32% when operating on feedstock with low potential aromatic content, along with apparent increase in C6^＋ liquid yield, hydrogen yield and aromatics yield, which could grapple with the problem associated with the catalyst regeneration constraints after CCR capacity expansion to ensure the longcycle high-load operation of the CCR unit.
基金Supported by the 973 Program (No. 2002CB312200)National High Tech. Project of China (863/CIMS 2004AA412050).
文摘A hybrid approach using MLD (mixed logical dynamical) framework to handle infeasibility and constraint prioritization issues in MPC (model predictive control) based on input-output model is introduced. By expressing constraint priorities as propositional logics and by transforming the propositional logics into inequalities,the infeasibility and constraint prioritization issues are solved in the MPC. Constraints with higher priorities are met first, and then these with lower priorities are satisfied as much as possible. This new approach is illustrated in the control of a heavy oil fractionator-Shell column. The overall control performance has been significantly improved through the infeasibility and control priorities handling.
