2017 Vol. 42, No. 8
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2017, 42(8): 1247-1262.
doi: 10.3799/dqkx.2017.518
Abstract:
With the development of oil and gas field, the complex reservoirs including low or ultra-low permeability reservoirs, heavy or ultra-heavy oil reservoirs, small fault block reservoirs, thin reservoirs, high water-cut reservoirs have been drawing incr...
With the development of oil and gas field, the complex reservoirs including low or ultra-low permeability reservoirs, heavy or ultra-heavy oil reservoirs, small fault block reservoirs, thin reservoirs, high water-cut reservoirs have been drawing incr...
2017, 42(8): 1263-1272.
doi: 10.3799/dqkx.2017.546
Abstract:
Simulation results of the reactive flow of the acid in the rock generally are used to optimize the operation of reservoir acidization so that the optimal injection rate is determined to stimulate the formation effectively with minimum cost. Many mode...
Simulation results of the reactive flow of the acid in the rock generally are used to optimize the operation of reservoir acidization so that the optimal injection rate is determined to stimulate the formation effectively with minimum cost. Many mode...
2017, 42(8): 1273-1286.
doi: 10.3799/dqkx.2017.101
Abstract:
Fractured carbonate reservoir is one of the most important reservoir types in the world, and its flow mechanisms has been a hot but challenging research topic in petroleum engineering. With the deepening exploration and development, many deep fractur...
Fractured carbonate reservoir is one of the most important reservoir types in the world, and its flow mechanisms has been a hot but challenging research topic in petroleum engineering. With the deepening exploration and development, many deep fractur...
2017, 42(8): 1287-1295.
doi: 10.3799/dqkx.2017.522
Abstract:
Seepage model experimentis widely utilized in many engineering fields such as geotechnical engineering and oil engineering since it can simulate the seepage process and movement law of fluid in porous media. While in the traditional seepage model exp...
Seepage model experimentis widely utilized in many engineering fields such as geotechnical engineering and oil engineering since it can simulate the seepage process and movement law of fluid in porous media. While in the traditional seepage model exp...
2017, 42(8): 1296-1300.
doi: 10.3799/dqkx.2017.102
Abstract:
Vertical reorientation fracture is a new hydraulic fracturing technique, which has been proved very effective in oil recovery enhancement, particularly in anisotropic reservoirs. In this paper, an analytical model has been derived to evaluate the pro...
Vertical reorientation fracture is a new hydraulic fracturing technique, which has been proved very effective in oil recovery enhancement, particularly in anisotropic reservoirs. In this paper, an analytical model has been derived to evaluate the pro...
2017, 42(8): 1301-1313.
doi: 10.3799/dqkx.2017.551
Abstract:
Shale reservoirs have different types of pore spaces, however, relevant studies on measuring the apparent permeability (AP) of shale gas reservoirs with considering different pore space have not been reported. A stochastic permeability model is propo...
Shale reservoirs have different types of pore spaces, however, relevant studies on measuring the apparent permeability (AP) of shale gas reservoirs with considering different pore space have not been reported. A stochastic permeability model is propo...
2017, 42(8): 1314-1323.
doi: 10.3799/dqkx.2017.532
Abstract:
Hydraulic fracturing practices in shale reservoirs show that effective stimulated reservoir volume (ESRV) significantly affects the production of hydraulic fractured well. Therefore, estimating ESRV is an important prerequisite for the evaluation and...
Hydraulic fracturing practices in shale reservoirs show that effective stimulated reservoir volume (ESRV) significantly affects the production of hydraulic fractured well. Therefore, estimating ESRV is an important prerequisite for the evaluation and...
2017, 42(8): 1324-1332.
doi: 10.3799/dqkx.2017.556
Abstract:
Numerical well test interpretation of massive multistage fractured horizontal wells can be used for the fracturing effect evaluation, which is very important for productivity evaluation. However, few field case studies have been conducted. Numerical ...
Numerical well test interpretation of massive multistage fractured horizontal wells can be used for the fracturing effect evaluation, which is very important for productivity evaluation. However, few field case studies have been conducted. Numerical ...
2017, 42(8): 1333-1339.
doi: 10.3799/dqkx.2017.506
Abstract:
The application interpretation of nuclear magnetic resonance (NMR) technology in unconventional reservoirs has been very controversial. A new interpretation method of NMR spectrum is proposed and applied to the unconventional reservoirs combining wit...
The application interpretation of nuclear magnetic resonance (NMR) technology in unconventional reservoirs has been very controversial. A new interpretation method of NMR spectrum is proposed and applied to the unconventional reservoirs combining wit...
2017, 42(8): 1340-1347.
doi: 10.3799/dqkx.2017.527
Abstract:
Yinggehai basin X area belongs to high-temperature and high-pressure gas reservoir, so that the content of dissolved gas in water is very large. However, the changing characteristics of gas-water interface and water invasion regularity is unknown bec...
Yinggehai basin X area belongs to high-temperature and high-pressure gas reservoir, so that the content of dissolved gas in water is very large. However, the changing characteristics of gas-water interface and water invasion regularity is unknown bec...
2017, 42(8): 1348-1355.
doi: 10.3799/dqkx.2017.103
Abstract:
The formation heterogeneity causes uneven sweeping of waterflooding. Different degrees of prevailing water flowing are generated due to different sizes of pores and throats. During the middle-late stage of water flooding, it is hard to move the remai...
The formation heterogeneity causes uneven sweeping of waterflooding. Different degrees of prevailing water flowing are generated due to different sizes of pores and throats. During the middle-late stage of water flooding, it is hard to move the remai...
2017, 42(8): 1356-1363.
doi: 10.3799/dqkx.2017.537
Abstract:
Diffusion is one of the key steps of methane transport in coal seam, yet our understanding of it is still insufficient. Taking the high rank coal bed methane (CBM) reservoir in the southern Qinshui basin, China as the study area, the patterns and qua...
Diffusion is one of the key steps of methane transport in coal seam, yet our understanding of it is still insufficient. Taking the high rank coal bed methane (CBM) reservoir in the southern Qinshui basin, China as the study area, the patterns and qua...
2017, 42(8): 1364-1372.
doi: 10.3799/dqkx.2017.542
Abstract:
With the development of economy and the rising demand for oil resources, the exploitation of viscous oil, bitumen and oil shale is an important challenge for the oil industry while the recoverable reserves of conventional crude is decreasing constant...
With the development of economy and the rising demand for oil resources, the exploitation of viscous oil, bitumen and oil shale is an important challenge for the oil industry while the recoverable reserves of conventional crude is decreasing constant...
2017, 42(8): 1373-1378.
doi: 10.3799/dqkx.2017.104
Abstract:
The pore structures and connections in unconventional oil and gas resources are very complex, the size of which may vary several orders of magnitude from millimeter to nanometer. And gas transport process depends on both microstructure characteristic...
The pore structures and connections in unconventional oil and gas resources are very complex, the size of which may vary several orders of magnitude from millimeter to nanometer. And gas transport process depends on both microstructure characteristic...
2017, 42(8): 1379-1385.
doi: 10.3799/dqkx.2017.550
Abstract:
Tight oil reservoirs mainly include tight limestone and tight sandstone, and there are significant differences in their microscopic characteristics. However, there are relatively fewer comparative studies on tight limestone and tight sandstone, so it...
Tight oil reservoirs mainly include tight limestone and tight sandstone, and there are significant differences in their microscopic characteristics. However, there are relatively fewer comparative studies on tight limestone and tight sandstone, so it...
2017, 42(8): 1386-1393.
doi: 10.3799/dqkx.2017.105
Abstract:
It is essential to understand methane mass transport through micro/nano pores in shale for the reservoir evaluation and gas production prediction. There distributes large numbers of pores, including micropores, mesopores and macropores. Kerogen, as t...
It is essential to understand methane mass transport through micro/nano pores in shale for the reservoir evaluation and gas production prediction. There distributes large numbers of pores, including micropores, mesopores and macropores. Kerogen, as t...
2017, 42(8): 1394-1402.
doi: 10.3799/dqkx.2017.106
Abstract:
Hydraulic fracturing is the main development method of low permeability reservoir, so it is important to the engineering to address the issue. By combining the fluid-structure interaction theory with fracture mechanics, the propagation of hydraulic f...
Hydraulic fracturing is the main development method of low permeability reservoir, so it is important to the engineering to address the issue. By combining the fluid-structure interaction theory with fracture mechanics, the propagation of hydraulic f...
2017, 42(8): 1403-1412.
doi: 10.3799/dqkx.2017.107
Abstract:
The ground temperature is higher and the pore pressure gradually decreases in the process of gas extraction in deep coal seams, however there are few studies on the coupling effect of temperature and pore pressure on the permeability of coal. Seepage...
The ground temperature is higher and the pore pressure gradually decreases in the process of gas extraction in deep coal seams, however there are few studies on the coupling effect of temperature and pore pressure on the permeability of coal. Seepage...
2017, 42(8): 1413-1420.
doi: 10.3799/dqkx.2017.519
Abstract:
It is significant to explore fluid crossflow rule of various medium in fractured-cavity reservoirs for effective development of crude oil in large-scale partially filled cavity. Based on the filling characteristics of the large size cavity in fractur...
It is significant to explore fluid crossflow rule of various medium in fractured-cavity reservoirs for effective development of crude oil in large-scale partially filled cavity. Based on the filling characteristics of the large size cavity in fractur...
2017, 42(8): 1421-1430.
doi: 10.3799/dqkx.2017.543
Abstract:
Studies on the adsorption mechanism of shale gas are of great significance to shale gas accumulation and reserves evaluation. Methane is in supercritical state at conditions under formation temperature and pressure, so the adsorption of shale gas is ...
Studies on the adsorption mechanism of shale gas are of great significance to shale gas accumulation and reserves evaluation. Methane is in supercritical state at conditions under formation temperature and pressure, so the adsorption of shale gas is ...
2017, 42(8): 1431-1440.
doi: 10.3799/dqkx.2017.108
Abstract:
During the process of tight oil exploration, counter current imbibition effect is significantly different due to the presence of complex fracture network and flow characteristics in tight oil reservoirs. But at present, there is no proper model to si...
During the process of tight oil exploration, counter current imbibition effect is significantly different due to the presence of complex fracture network and flow characteristics in tight oil reservoirs. But at present, there is no proper model to si...
