A high efficiency method is very important in geological survey for a new city in China.Geophysical parameters are Measured While Drilling(MWD),and these parameters are processed and explained on the ground,so the met...A high efficiency method is very important in geological survey for a new city in China.Geophysical parameters are Measured While Drilling(MWD),and these parameters are processed and explained on the ground,so the method can replace conventional engineering geological exploration for drilling rock sample.According petroleum engineering MWD,using the different characters of different rock absorbs γ radial,with the method of storing data in hole and explaining data on the ground,engineering geological exploration formation density MWD is researched.The MWD works stabilized,and the performance is good with precise data.展开更多
Borehole nuclear magnetic resonance(NMR)is a powerful technology to characterize the petrophysical properties of underground reservoirs in the petroleum industry.The rising complexity of oil and gas exploration and de...Borehole nuclear magnetic resonance(NMR)is a powerful technology to characterize the petrophysical properties of underground reservoirs in the petroleum industry.The rising complexity of oil and gas exploration and development objectives,as well as the novel application contexts of underground reservoirs,have led to increasingly demanding requirements on borehole NMR technology including instrument design and related processing methods.This mini review summarizes the advances and applications of borehole NMR instruments along with some future possibilities.It may be helpful for researchers and engineers in the petroleum industry to understand the development status and future trends of borehole NMR technology.展开更多
Due to the rapid development of modern science and technology, many advanced sensors have been put into use to explore our solar system, including the Moon. With the help of those detectors, we can retrieve more infor...Due to the rapid development of modern science and technology, many advanced sensors have been put into use to explore our solar system, including the Moon. With the help of those detectors, we can retrieve more information to about the Moon’s composition and evolution. The Clementine (January, 1994), Lunar Prospector (January, 1998) and especially Smart-1 (September, 2003) launched successively have demonstrated the next-generation planet exploration techniques. Now China has decided to send a probe to the Moon. So it is necessary to overview the development of detectors used for the scientific observation of the Moon. In this paper, some main instruments used to acquire geochemistry information are described, which include UV-VIS-NIR CCD imaging spectroscope, neutronray, gamma-ray, and X-ray spectrometers. Moreover, the payloads of China’s first lunar satellite are introduced briefly.展开更多
文摘A high efficiency method is very important in geological survey for a new city in China.Geophysical parameters are Measured While Drilling(MWD),and these parameters are processed and explained on the ground,so the method can replace conventional engineering geological exploration for drilling rock sample.According petroleum engineering MWD,using the different characters of different rock absorbs γ radial,with the method of storing data in hole and explaining data on the ground,engineering geological exploration formation density MWD is researched.The MWD works stabilized,and the performance is good with precise data.
基金“The Strategic Cooperation Technology Projects of CNPC and CUP(Grant Number ZLZX2020-03)”“China Postdoctoral Science Foundation(Grant Number 2021M700172)”.
文摘Borehole nuclear magnetic resonance(NMR)is a powerful technology to characterize the petrophysical properties of underground reservoirs in the petroleum industry.The rising complexity of oil and gas exploration and development objectives,as well as the novel application contexts of underground reservoirs,have led to increasingly demanding requirements on borehole NMR technology including instrument design and related processing methods.This mini review summarizes the advances and applications of borehole NMR instruments along with some future possibilities.It may be helpful for researchers and engineers in the petroleum industry to understand the development status and future trends of borehole NMR technology.
文摘Due to the rapid development of modern science and technology, many advanced sensors have been put into use to explore our solar system, including the Moon. With the help of those detectors, we can retrieve more information to about the Moon’s composition and evolution. The Clementine (January, 1994), Lunar Prospector (January, 1998) and especially Smart-1 (September, 2003) launched successively have demonstrated the next-generation planet exploration techniques. Now China has decided to send a probe to the Moon. So it is necessary to overview the development of detectors used for the scientific observation of the Moon. In this paper, some main instruments used to acquire geochemistry information are described, which include UV-VIS-NIR CCD imaging spectroscope, neutronray, gamma-ray, and X-ray spectrometers. Moreover, the payloads of China’s first lunar satellite are introduced briefly.
