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

Development and Laboratory Test of All-Metal Bridge Plug for Ultra-High Temperature Environments

open access: yesShiyou jixie, 2023
Soluble bridge plugs are deficient for low compressive strength,slow degradation rate,and inapplicability to ultra-high temperature environment.For these problems,an innovative design of all-metal bridge plug for ultra-high temperature environments was ...
Cheng Yuxiong   +5 more
doaj  

Mixing characteristics in perforation due to the delivery of combustion-supporting agent by jet for in-situ combustion of methane fracturing

open access: yesMeitan xuebao
As a disruptive reservoir stimulation technology in unconventional natural gas development, in-situ methane combustion fracturing generates complex fracture networks through high-temperature and high-pressure shockwaves produced by the combustion of ...
Chengzheng CAI   +7 more
doaj   +1 more source

The Solution of Massive Hydraulic Fracturing of Shale Gas in China

open access: yesShiyou jixie, 2018
According to the characteristics of shale gas exploration and development in China, through the analyses of the massive shale gas fracturing complete equipment in North America and the geographical distribution of shale gas in China, solution of ...
Zhang Shuli, Li Xincheng
doaj  

Determination of pre-Darcy/Darcy/non-Darcy seepage patterns in coal around extraction boreholes

open access: yesMeitan xuebao
The stress concentration phenomenon in extraction drill holes easily leads to different degrees of damage to the coal body structure around the holes, and the redistribution of stress also causes the formation of a large number of pores and fissure ...
Mingkun PANG   +4 more
doaj   +1 more source

Research and Application of Fiber Carrying Proppant Fracturing Technology in Eastern Ordos Basin

open access: yesShiyou jixie, 2021
When conventional fracturing technology is used to conduct fracturing in the gas reservoirs of eastern Ordos Basin, some problems such as low gas flow rate, poor rate maintenance capability and difficult development often occur.
Hu Guangming, Ji Suibo, Gao Yu
doaj  

Effect of CO2 Fracturing Parameters on Well Temperature and Pressure

open access: yesShiyou jixie, 2018
Since the thermo physical properties of supercritical CO2 change drastically in the flow, the calculation method of common physical properties is not suitable.
Lan Jianping, Gong Qun, Xu Zhiguo
doaj  

Dissolvable Bridge Plug Test and Field Application

open access: yesShiyou jixie, 2018
To eliminate the need of coiled tubing milling and debris fishing after multistage fracturing in horizontal wells, a fully dissolvable bridge plug made by magnesium alloy material was developed.
Yang Xiaocheng, Li Jun, Zou Gang
doaj  

Analysis on Erosion Wear Laws of High Pressure Manifold

open access: yesShiyou jixie, 2018
In view of the problem that the inner wall of the high-pressure manifold is damaged by erosion during the fracturing operation, the erosive wear rate and the erosion dispersion distribution of the inner wall of the high-pressure manifold are studied ...
Tu Yadong   +5 more
doaj  

Continuous Sand Transport Unit for Fracturing in Shale Gas Development

open access: yesShiyou jixie, 2016
Given large displacement and high sand ratio in shale gas recovery,a large amount of sand and fast sanding at 3~8 m3/min are required.The sanding mode in conventional fracturing is inapplicable for its low transport efficiency and large area occupation ...
Wang Yunhai   +4 more
doaj  

Effect of Cementing Quality on Casing Failure in Horizontal Section of Shale Gas Well

open access: yesShiyou jixie, 2019
The casing for shale gas well is subject to complicate forces. The inferior cementing quality will easily cause large stress concentration on the casing, which will lead to deformation failure.
Mai Yang   +5 more
doaj  

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