Results 21 to 30 of about 26,154 (115)

Natural gas development prospect in Changqing gas province of the Ordos Basin

open access: yesNatural Gas Industry B, 2022
At present, natural gas accounts for a low proportion in China's primary energy consumption structure and is highly dependent on foreign sources. Changqing gas province of the Ordos Basin where PetroChina Changqing Oilfield Company (referred to as ...
He Jiangchuan   +4 more
doaj   +1 more source

Progress and prospect of CNOOC's oil and gas well drilling and completion technologies

open access: yesNatural Gas Industry B, 2022
Offshore oil and gas production has become an important growth pole to ensure national energy security. However, China's offshore oil and gas production is lack of key core technologies and weak in tool and equipment foundation and can hardly support the
Zhong Li   +3 more
doaj   +1 more source

Popularization and application of the capillary foam deliquification technology in horizontal wells with low pressures and low liquid flow rates: A case study on middle–shallow gas reservoirs in the Western Sichuan depression

open access: yesNatural Gas Industry B, 2019
The application effect of the foam deliquification technology in horizontal wells is poor because the foaming agent fails to reach the target location.
Tong Liu   +6 more
doaj   +1 more source

Integrity tests of cement sheath for shale gas wells under strong alternating thermal loads

open access: yesNatural Gas Industry B, 2020
During large-scale hydraulic fracturing in shale gas horizontal wells, a cement sheath easily loses its integrity due to the fluctuation and continuous change of wellbore temperature and pressure and the cyclic loading and unloading, which will threaten ...
Yuanhua Lin   +5 more
doaj   +1 more source

Is the implementation of energy savings and EROI increasing policy really effective in Russian gas companies? The case of JSC “Gazprom”

open access: yesNatural Gas Industry B, 2019
Natural gas resources production in Russia is profitable, both economically and in terms of the energy produced. In 2017, the Gazprom Return on Energy Investment (further- EROI) for the production, transportation, and processing was 79:1 that is a high ...
Steblyanskaya Alina   +4 more
doaj   +1 more source

New progress in wastewater treatment technology for standard-reaching discharge in sour gas fields

open access: yesNatural Gas Industry B, 2018
Gas field water is generally characterized by complex contaminant components and high salinity. Its proper treatment has always been the great concern in the field of environmental protection of oil & gas fields.
Jie Yang, Qigui Xiang
doaj   +1 more source

Diagenetic differences of the Zhenzhuchong Member of Ziliujing Formation in the Jiulongshan–Jiange area, Sichuan Basin

open access: yesNatural Gas Industry B, 2015
The rocks of the Zhenzhuchong Member of the Ziliujing Formation, Jiulongshan–Jiange area in the Sichuan Basin, were analyzed by petrography, XRD, and SEM techniques to investigate their diagenetic history and properties, such as authigenic mineral types,
Mingcai Hou   +4 more
doaj   +1 more source

Basic characteristics and contraceptive use (n = 762).

open access: yes, 2020
Basic characteristics and contraceptive use (n = 762).
Makiko Komasawa (8595552)   +5 more
core   +1 more source

Investigation of Open Star Clusters Alessi 98 and Ryu 762 [PDF]

open access: yes, 2020
According to the modern high-accuracy astrometric catalog Gaia DR2, the Alessi 98 and Ryu 762 clusters were studied in detail as well as their surroundings for the first time.
Постникова, Е. С.   +1 more
core   +1 more source

Relationship between gas reservoir distribution and structural system of upper Triassic Xujiahe Fm in the Sichuan Basin

open access: yesNatural Gas Industry B, 2019
The gas reservoir of Upper Triassic Xujiahe Fm in the Sichuan Basin is characterized by “accumulation in the early stage, entrapment in the middle stage and activation in the late stage”.
Shu Liu   +6 more
doaj   +1 more source

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