Results 11 to 20 of about 314,928 (308)

Technical measures of deliverability enhancement for mature gas fields: A case study of Carboniferous reservoirs in Wubaiti gas field, eastern Sichuan Basin, SW China

open access: yesPetroleum Exploration and Development, 2017
Taking the carboniferous reservoir of Wubaiti gas field in eastern Sichuan Basin as an example, the technology strategies are proposed about the following major problems during the middle to late stage of gas field development: imbalance development, low
Ailin JIA   +6 more
doaj   +1 more source

A probabilistic approach to the dynamic cut-off grade assessment

open access: yesЗаписки Горного института, 2021
Cut-off grade is an important conditioning parameter that determines the quantity and quality of recoverable reserves and development efficiency.  Today, Russian mining companies operate with certified quality requirements.
Victor I. Bragin   +2 more
doaj   +1 more source

Pricing in dynamic advance reservation games [PDF]

open access: yes2015 IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS), 2015
We analyze the dynamics of advance reservation (AR) games: games in which customers compete for limited resources and can reserve resources for a fee. We introduce and analyze two different learning models. In the first model, called strategylearning, customers are informed of the strategy adopted in the previous iteration, while in the second model ...
Eran Simhon   +3 more
openaire   +1 more source

Evaluation of Exploitable Groundwater Reserves in Karst Terrain: A Case Study from Crete, Greece

open access: yesGeosciences, 2018
Karst systems constitute valuable freshwater resources in Crete island, a region of Greece that is threatened by water scarcity. The present work refers to evaluation of the available groundwater potential in a karst terrain and contributes to providing ...
Emmanouil Steiakakis
doaj   +1 more source

Construction of Critical Metal Mineral Product Reserve System in China [PDF]

open access: yes中国工程科学
Critical metal minerals, such as rare earths, tungsten, antimony, cobalt, lithium, and tantalum, play a vital role in safeguarding national economic stability and defense security.
Yu Wang   +3 more
doaj   +1 more source

Applied Research of NMR Movable Fluid Saturation in Development of Low Permeability Oilfield [PDF]

open access: yesE3S Web of Conferences, 2020
In order to improve the production degree of reserves in low permeability oilfield, taking Chang 2 reservoir in Bailangcheng oil region as an example, the movable fluid saturation and its influencing factors were studied by using NMR and high speed ...
Xingjun Gao   +3 more
doaj   +1 more source

Well-controlled dynamic hydrocarbon reserves calculation of fracture–cavity karst carbonate reservoirs based on production data analysis

open access: yesJournal of Petroleum Exploration and Production Technology, 2020
Fracture–cavity karst carbonate reservoirs have multiple storage space with irregular geometry and various scales, and this caused strong heterogeneity and complex flow characteristics.
Xinrui Lyu, Guiliang Zhu, Zhongchun Liu
doaj   +1 more source

Rapid landscape assessment for conservation effectiveness of wetland national nature reserves across the Chinese mainland

open access: yesGlobal Ecology and Conservation, 2021
The establishment of protected areas (PAs) is an effective and prevailing tool for conserving wetlands globally, however, strong evidence indicates that not all PAs can deliver adequate conservation to wetland ecosystems due to the impacts of natural and
Yonglin Mu   +8 more
doaj   +1 more source

Temporal and spatial evolution characteristics of slope erosion caused by forest fires in Xide County, Sichuan Province

open access: yesShuiwen dizhi gongcheng dizhi
The mountainous areas in southwestern Sichuan Province, China, are prone to dry winters and springs, which create favorable conditions for frequent forest fires.
Youtai WU, Xiewen HU, Xichao CAO, Kun HE
doaj   +1 more source

Regulating reserve with large penetration of renewable energy using midterm dynamic simulation

open access: yesJournal of Modern Power Systems and Clean Energy, 2013
A novel renewable energy intermittency model and a new midterm dynamic simulation tool in power systems are developed for examining dynamic behavior along the load curve for different combinations of the system operation reserves and renewable portfolio ...
Chaoyang Jing, Baiqing Li
doaj   +1 more source

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