In China, hot researches on shale oil were raised by the important breakthrough of shale oil in America. Obviously, the first important issue is the actual shale oil resource potential of China, and the selection of t...In China, hot researches on shale oil were raised by the important breakthrough of shale oil in America. Obviously, the first important issue is the actual shale oil resource potential of China, and the selection of the key appraisement parameter is vital to the shale oil resource amount. Among the appraisement parameters, the oil content parameter（S1） is the key one, but the evaluation result is generally lower because of light hydrocarbon losing and heavy hydrocarbon handling. And the more important thing is that the light hydrocarbon with small molecular weight is more recoverable, and therefore its amount is important to the total shale oil yields. Based on pyrolysis experiments and the kinetic model of hydrocarbon generation, correction factors and a model of light hydrocarbon losing and heavy hydrocarbon handling were established. The results show that the correction factor of heavy hydrocarbon handling is 3.2, and that of light hydrocarbon losing is controlled by kerogen type, maturity and hydrocarbon generation environment（closed or open）.展开更多
1 Introduction There is a set of organic rich shale at E2842 sub-member in damnintun sag. The organic material is typically type I. In recent years, breakthrough was obtained in shale oil exploration. The wettability ...1 Introduction There is a set of organic rich shale at E2842 sub-member in damnintun sag. The organic material is typically type I. In recent years, breakthrough was obtained in shale oil exploration. The wettability of organic and inorganic pore is different. As a result, the mobility of oil in organic and inorganic pore is different. So it＇s necessary to distinguish the organic and inorganic pore. While the ratio of organic and inorganic pore in oil-bearing shale is still not clear.展开更多
With the increasing of energy demand and conventional oil and gas resources depletion, unconventional oil and gas resources are getting more and more attention, and have become a major contributor to the global oil an...With the increasing of energy demand and conventional oil and gas resources depletion, unconventional oil and gas resources are getting more and more attention, and have become a major contributor to the global oil and gas production growth over the past five years （Zou et al., 2012; Jia et al., 2014）.展开更多
Unconventional oil and gas resources are closely to the retaining ability of hydrocarbon of source rock. The detained hydrocarbon can be divided to two parties： organic retaining ability including the swelling and ad...Unconventional oil and gas resources are closely to the retaining ability of hydrocarbon of source rock. The detained hydrocarbon can be divided to two parties： organic retaining ability including the swelling and adsorption function of kerogen and retaining ability of organic pore, and inorganic retaining ability including adsorption of detrital minerals and retaining ability of inorganic pore.展开更多
As all the nations in the world demand for more and more oil and gas resources and it is decreasing continually, unconventional oil and gas with the large resource potential gradually become the new exploration areas....As all the nations in the world demand for more and more oil and gas resources and it is decreasing continually, unconventional oil and gas with the large resource potential gradually become the new exploration areas. Unconventional oil has been attached great importance by countries and companies.展开更多
With the rising of energy demand and the dwindling of conventional oil and gas resources, the unconventional oil and gas resources are getting more and more attention, and has become the main contribution of global oi...With the rising of energy demand and the dwindling of conventional oil and gas resources, the unconventional oil and gas resources are getting more and more attention, and has become the main contribution of global oil and gas production growth over the past five years.展开更多
吸附态是页岩气的主要赋存状态之一,对吸附气含量的准确评价是页岩气勘探开发中的重要环节.在页岩吸附气含量评价过程中,所选用的等温吸附模型是否遵循页岩气的赋存状态及其微观作用机理,是决定模型适用性的关键所在,也是决定吸附气含...吸附态是页岩气的主要赋存状态之一,对吸附气含量的准确评价是页岩气勘探开发中的重要环节.在页岩吸附气含量评价过程中,所选用的等温吸附模型是否遵循页岩气的赋存状态及其微观作用机理,是决定模型适用性的关键所在,也是决定吸附气含量评价准确性的重要因素.因此,需要对页岩气在孔隙表面的赋存状态及其微观作用机理开展深入研究,为科学地优选或建立吸附气评价模型提供理论依据.利用巨正则蒙特卡洛(Grand Canonical Monte Carlo,简称GCMC)法分别模拟甲烷在有机质和伊利石孔隙中的吸附特征并得到分子构型,并进行分子动力学(MD)模拟使体系达到充分平衡.在此基础上,根据气体浓度分布、密度场分布以及分子间相互作用等特征阐明页岩气在孔隙表面的赋存状态及其微观作用机理.研究表明,页岩气在孔隙表面的吸附作用并非单层吸附,吸附相可划分为强吸附层、弱吸附层和二者之间的吸附层波谷.强吸附层主要受到矿物表面的吸附作用;吸附层波谷与弱吸附层既受到矿物表面的吸附作用,又受到不同吸附层之间的吸附作用.Langmiur模型与BET模型的假设条件与此机理不严格相符,可能对模型评价精度造成一定影响.对页岩气在孔隙表面赋存状态及其微观作用机理的研究,有望为吸附模型的优选或建立提供理论依据.展开更多
基金supported by "the Fundamental Research Funds for the Central Universities" (14CX05017A)the Natural Science Foundation of China (41330313)+1 种基金Program for New Century Excellent Talents in Heilongjiang Provincial University (1252-NCET-012)CNPC Innovation Foundation (2011D-5006-0101)
文摘In China, hot researches on shale oil were raised by the important breakthrough of shale oil in America. Obviously, the first important issue is the actual shale oil resource potential of China, and the selection of the key appraisement parameter is vital to the shale oil resource amount. Among the appraisement parameters, the oil content parameter（S1） is the key one, but the evaluation result is generally lower because of light hydrocarbon losing and heavy hydrocarbon handling. And the more important thing is that the light hydrocarbon with small molecular weight is more recoverable, and therefore its amount is important to the total shale oil yields. Based on pyrolysis experiments and the kinetic model of hydrocarbon generation, correction factors and a model of light hydrocarbon losing and heavy hydrocarbon handling were established. The results show that the correction factor of heavy hydrocarbon handling is 3.2, and that of light hydrocarbon losing is controlled by kerogen type, maturity and hydrocarbon generation environment（closed or open）.
基金funded by National Natural Science Foundation of China(41330313)National Natural Science Foundation of China(41172134)+3 种基金“the Fundamental Research Funds for the Central Universities”(13CX05013A)“the Fundamental Research Funds for the Central Universities”(15CX06013A)Postgraduate Innovation Project(YCX2015002)Innovation Fund of CNPC(2011D-5006-0101)
文摘1 Introduction There is a set of organic rich shale at E2842 sub-member in damnintun sag. The organic material is typically type I. In recent years, breakthrough was obtained in shale oil exploration. The wettability of organic and inorganic pore is different. As a result, the mobility of oil in organic and inorganic pore is different. So it＇s necessary to distinguish the organic and inorganic pore. While the ratio of organic and inorganic pore in oil-bearing shale is still not clear.
基金National Basic Research Program of China(2014CB239005)Natural Science Foundation of China(41172134)+1 种基金National Key S&T Special Projects,(2011ZX05004-001-002)Central University Basic Scientific Research Business Expenses Special Funds(14CX05012A)
文摘With the increasing of energy demand and conventional oil and gas resources depletion, unconventional oil and gas resources are getting more and more attention, and have become a major contributor to the global oil and gas production growth over the past five years （Zou et al., 2012; Jia et al., 2014）.
文摘Unconventional oil and gas resources are closely to the retaining ability of hydrocarbon of source rock. The detained hydrocarbon can be divided to two parties： organic retaining ability including the swelling and adsorption function of kerogen and retaining ability of organic pore, and inorganic retaining ability including adsorption of detrital minerals and retaining ability of inorganic pore.
文摘As all the nations in the world demand for more and more oil and gas resources and it is decreasing continually, unconventional oil and gas with the large resource potential gradually become the new exploration areas. Unconventional oil has been attached great importance by countries and companies.
文摘With the rising of energy demand and the dwindling of conventional oil and gas resources, the unconventional oil and gas resources are getting more and more attention, and has become the main contribution of global oil and gas production growth over the past five years.
文摘吸附态是页岩气的主要赋存状态之一,对吸附气含量的准确评价是页岩气勘探开发中的重要环节.在页岩吸附气含量评价过程中,所选用的等温吸附模型是否遵循页岩气的赋存状态及其微观作用机理,是决定模型适用性的关键所在,也是决定吸附气含量评价准确性的重要因素.因此,需要对页岩气在孔隙表面的赋存状态及其微观作用机理开展深入研究,为科学地优选或建立吸附气评价模型提供理论依据.利用巨正则蒙特卡洛(Grand Canonical Monte Carlo,简称GCMC)法分别模拟甲烷在有机质和伊利石孔隙中的吸附特征并得到分子构型,并进行分子动力学(MD)模拟使体系达到充分平衡.在此基础上,根据气体浓度分布、密度场分布以及分子间相互作用等特征阐明页岩气在孔隙表面的赋存状态及其微观作用机理.研究表明,页岩气在孔隙表面的吸附作用并非单层吸附,吸附相可划分为强吸附层、弱吸附层和二者之间的吸附层波谷.强吸附层主要受到矿物表面的吸附作用;吸附层波谷与弱吸附层既受到矿物表面的吸附作用,又受到不同吸附层之间的吸附作用.Langmiur模型与BET模型的假设条件与此机理不严格相符,可能对模型评价精度造成一定影响.对页岩气在孔隙表面赋存状态及其微观作用机理的研究,有望为吸附模型的优选或建立提供理论依据.
