Analyzes on solid potassium mineral reserves calculation methods and existing problems of chaerhan salt lake,t with many parameters comparison solid potassium mineral reserves calculation results are reliable,the
A detailed assessment on water resources of HNNR is to find the changing rules in time and space scale of water resources of HNNR and its adjacent areas, and the generating and degrading factors of wetland and provide...A detailed assessment on water resources of HNNR is to find the changing rules in time and space scale of water resources of HNNR and its adjacent areas, and the generating and degrading factors of wetland and provide scientific base on restoring and managing the hydrologic regime for planning and designing at HNNR. Both the assessment area and its adjacent watershed of Bielahong River belong to the same region in the climate and surface features. Total of 46 years of serial data from 1956 2001 in the Bielahong Hydrology Station was employed. Typical analysis of the serial runoff was conducted by adopting the residual mass curve method. The calculation methods of hydrological parameters are valuable for analyzing the water balance of HNNR. The results showed that the inputs of 118.29×10 6 m 3 of the surface runoff and 1 478km 2 of the areas of natural watershed in HNNR were decreased. At the same time some measurements to control and prevent water resources decreased have been proposed.展开更多
As a significant inducement during the development of oil and gas,the role of remaining recoverable reserves is more observable especially in the later phase of development of oilfield.Depended on the production decli...As a significant inducement during the development of oil and gas,the role of remaining recoverable reserves is more observable especially in the later phase of development of oilfield.Depended on the production decline method in petroleum reservoir engineering,a new model of predicting recoverable and remaining recoverable reserves has been展开更多
商业油流是储量起算标准的重要经济评价指标之一。中国石油行业标准Q/ SY 01180—2020《石油天然气经济可采储量评价规范》中给出的常规油藏稳定递减单井商业油流的计算方法,对生产初期产量递减较快、中后期产量递减相对平缓的“分段式...商业油流是储量起算标准的重要经济评价指标之一。中国石油行业标准Q/ SY 01180—2020《石油天然气经济可采储量评价规范》中给出的常规油藏稳定递减单井商业油流的计算方法,对生产初期产量递减较快、中后期产量递减相对平缓的“分段式”递减的特低渗油藏适用性较差。为此,基于常规油藏单一递减率的单井商业油流计算方法,应用盈亏平衡原理,结合“分段式”递减规律,建立了一种符合“分段式”递减规律的油藏单井商业油流计算模型,并以辽河坳陷太阳组为例,结合其油藏相关物性参数、单井投资及成本费用、油气价格等参数,利用所建立的“分段式”递减油藏单井商业油流计算模型,确定了评价油价为60美元/桶条件下的单井商业油流。研究结果对同类型油藏具有借鉴意义。展开更多
Compared with conventional gas reservoir,percolation mechanism of coalbed methane(CBM)is completely different,it is remarkably affected by adsorption/desorption performance,pressure variation and coalbed characteristi...Compared with conventional gas reservoir,percolation mechanism of coalbed methane(CBM)is completely different,it is remarkably affected by adsorption/desorption performance,pressure variation and coalbed characteristics.Then it is difficult to calculate the controlled reserves of CBM wells.Moreover,the connection of edge-bottom water or interbedded water by fractures or faults may largely increase the water yield and drainage period,leading to obvious water invasion in some CBM wells.There are few literature about the predicted production for CBM wells with high water yield.Focusing on the unconventional CBM reservoir,methods of pseudo geological reserves and production index curves are adopted to establish the calculation model of water influx and controlled reserves.It further confirms that the calculation model is successfully applicated on the CBM wells at the middle part of Qinshui Basin in China.展开更多
文摘Analyzes on solid potassium mineral reserves calculation methods and existing problems of chaerhan salt lake,t with many parameters comparison solid potassium mineral reserves calculation results are reliable,the
文摘A detailed assessment on water resources of HNNR is to find the changing rules in time and space scale of water resources of HNNR and its adjacent areas, and the generating and degrading factors of wetland and provide scientific base on restoring and managing the hydrologic regime for planning and designing at HNNR. Both the assessment area and its adjacent watershed of Bielahong River belong to the same region in the climate and surface features. Total of 46 years of serial data from 1956 2001 in the Bielahong Hydrology Station was employed. Typical analysis of the serial runoff was conducted by adopting the residual mass curve method. The calculation methods of hydrological parameters are valuable for analyzing the water balance of HNNR. The results showed that the inputs of 118.29×10 6 m 3 of the surface runoff and 1 478km 2 of the areas of natural watershed in HNNR were decreased. At the same time some measurements to control and prevent water resources decreased have been proposed.
文摘As a significant inducement during the development of oil and gas,the role of remaining recoverable reserves is more observable especially in the later phase of development of oilfield.Depended on the production decline method in petroleum reservoir engineering,a new model of predicting recoverable and remaining recoverable reserves has been
文摘商业油流是储量起算标准的重要经济评价指标之一。中国石油行业标准Q/ SY 01180—2020《石油天然气经济可采储量评价规范》中给出的常规油藏稳定递减单井商业油流的计算方法,对生产初期产量递减较快、中后期产量递减相对平缓的“分段式”递减的特低渗油藏适用性较差。为此,基于常规油藏单一递减率的单井商业油流计算方法,应用盈亏平衡原理,结合“分段式”递减规律,建立了一种符合“分段式”递减规律的油藏单井商业油流计算模型,并以辽河坳陷太阳组为例,结合其油藏相关物性参数、单井投资及成本费用、油气价格等参数,利用所建立的“分段式”递减油藏单井商业油流计算模型,确定了评价油价为60美元/桶条件下的单井商业油流。研究结果对同类型油藏具有借鉴意义。
基金The work was supported by the Natural Science Foundation of China(No.U1762212 and 51374181)the State Key Laboratory of CBM Enrichment Mechanisms(No.2016SZ05036-002).
文摘Compared with conventional gas reservoir,percolation mechanism of coalbed methane(CBM)is completely different,it is remarkably affected by adsorption/desorption performance,pressure variation and coalbed characteristics.Then it is difficult to calculate the controlled reserves of CBM wells.Moreover,the connection of edge-bottom water or interbedded water by fractures or faults may largely increase the water yield and drainage period,leading to obvious water invasion in some CBM wells.There are few literature about the predicted production for CBM wells with high water yield.Focusing on the unconventional CBM reservoir,methods of pseudo geological reserves and production index curves are adopted to establish the calculation model of water influx and controlled reserves.It further confirms that the calculation model is successfully applicated on the CBM wells at the middle part of Qinshui Basin in China.
