Results 51 to 60 of about 26,044 (169)

Implementations of star evaluation management model in complex high water-cut gas field during its integrated development of geological engineering

open access: yesYouqicang pingjia yu kaifa, 2021
Poor reserve quality, high water-cut and high investment cost have become the bottleneck of developing Dongsheng Gas Field located in Ordos Basin. In this way, the star evaluation management model is put forward to enhance its production performance.
LIU Xiaobo   +9 more
doaj  

Determination of the radius of the zone of explosive loosening of a fractured rock mass when blasting a borehole charge

open access: yesТехнічна інженерія, 2020
The work presents the results of scientific research on determining the radius of the zone of explosive loosening of fractured rock massifs during the explosion of a borehole charge of an explosive in it.
O.O. Frolov, M.I. Beltek
doaj   +1 more source

Fractures and fracture dislocations [PDF]

open access: yesThe Dublin Journal of Medical Science, 1916
n ...
openaire   +1 more source

Study of texture changes in the emptiness of rocks under the tension conditions by electron microscopy methods

open access: yesGeoresursy
On the example of an oil deposit of the Vereisk age which is one of the deposits in the Volga-Urals, lithotypes of rocks are distinguished, characterized by a fundamentally different structure of the void space.
B. M. Osovetsky   +4 more
doaj   +1 more source

Volume fracturing technology of deep shale gas in southern Sichuan

open access: yesYouqicang pingjia yu kaifa, 2021
Due to the deep buried depth(3 500~4 200 m), high ground stress, high ground stress discrepancy(7 to 17 MPa), low reservoir brittle(< 0.5)and the undeveloped natural fracture, the hydraulic fracture of Weirong deep shale gas face the problems of high ...
Wang Xingwen, Lin Yongmao, Miao Weijie
doaj  

Selection and assessment of filtration-capacitive parameters for clay reservoirs

open access: yesНаука. Инновации. Технологии, 2022
Consideration is given to the selection and assessment of filter-capacitive parameters of clay reservoirs, substantiation of oil-gas-saturated thickness and permeability of reservoirs.
Ramiz Aliyevich Gasumov
doaj  

Discrimination criteria for interaction behavior between hydraulic fractures and natural fractures based on energy balance principle

open access: yesYouqi dizhi yu caishoulu
The interaction between hydraulic fractures and natural fractures has an important influence on the distribution and complexity of fracture networks after fracturing.
ZHANG Wang   +3 more
doaj   +1 more source

Evaluation of quality of experimental white‑grain rice populations in accelerated breeding by grain size and vitreosity

open access: yesSiberian Journal of Life Sciences and Agriculture
Background. In marker-assisted rice breeding, the accelerated development of varieties with superior grain quality traits through advanced biotechnological approaches requires the generation of segregating rice populations followed by phenotyping of ...
Natalya G. Tumanyan   +4 more
doaj   +1 more source

Numerical Analysis of Pulsed Eddy Current Testing for Erosion Defects of High-pressure Manifold

open access: yesShiyou jixie, 2023
In fracturing operation, erosional damage easily occurs in high-pressure manifold running for a long time under bad working conditions, and the online testing of high-pressure manifold is particularly important to ensure safe production.Based on pulsed ...
Li Jie   +4 more
doaj  

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