نتایج جستجو برای: nanopolymer flooding

تعداد نتایج: 13752  

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2008
mahdi jafari amir badakhshan vahid taghikhani davood rashtchian cirous ghotbi

in this research the experimental and theoretical studies on different enhanced oil recovery (eor) techniques, i.e. water flooding (wf), gas injection (gi) and water alternating gas process (wag) were performed on specimens taken from an iranian carbonate offshore reservoir at the reservoir condition. the experimental results for each specified techniques were compared with the corresponding re...

Journal: :journal of petroleum science and technology 2015
li yanjie zhang yanyu wang shichao chen huijuan shi xiaoying

prior to the implementation of co2 injection eor projects, the screening evaluation of candidate reservoirs will promote the economic benefits of co2 injection. currently, a uniform screening method for co2 miscible flooding does not exist. based on more than 112 successfully implemented co2 miscible flooding reservoirs, which was referred in 2010 worldwide eor survey, and co2 miscible flooding...

Journal: :journal of petroleum science and technology 2015
changhua yang yiqing lin zhang zhang ruijian deng xinrong wu

the biqian-10 block, located in henan oilfield of sinopic, contains many thin and interbedded reservoirs, which have been operated by cyclic steam stimulation for 20 years or more. therefore, it is a challenge to implement the conventional steam flooding. in order to improve the recovery of steam flooding, urea was used to assist steam flooding. urea can decompose into co2 and nh3, which are be...

2012

The objective of this paper is to establish relationships between rainfall extremes and damage data from Dutch insurance industry. Rainfall data are based on a network of 33 automatic rain gauges held by the Royal Netherlands Meteorological Institute. Rainfall characteristics, such as peak rainfall intensity and rainfall volume, are correlated with damage statistics of claims in the vicinity of...

2014
Ghazala Mustafa Setsuko Komatsu

Flooding stress has a negative impact on soybean cultivation because it severely impairs growth and development. To understand the flooding responsive mechanism in early stage soybeans, a glycoproteomic technique was used. Two-day-old soybeans were treated with flooding for 2 days and roots were collected. Globally, the accumulation level of glycoproteins, as revealed by cross-reaction with con...

Journal: :Annals of botany 2015
Qian Zhang Eric J W Visser Hans de Kroon Heidrun Huber

BACKGROUND AND AIMS Flooding can occur at any stage of the life cycle of a plant, but often adaptive responses of plants are only studied at a single developmental stage. It may be anticipated that juvenile plants may respond differently from mature plants, as the amount of stored resources may differ and morphological changes can be constrained. Moreover, different water depths may require dif...

2007
Yong-Feng Yan Jin-Dong Fu Byun-Woo Lee

Rice bran application just after transplanting has been increasingly practiced as a herbicide-substitute for organic rice production in Korea. However, this practice is frequently reported to be unsatisfactory in weed suppression. An experiment with five treatments that combine flooding depth (shallow and deep), rice bran application level (low and high), and herbicide application was carried o...

This study sought to probe the role of input flooding through listening tasks on the uptake of simple present tense and the present progressive tense among pre - intermediate English a s Foreign Language ( EFL ) learners. To comply with the objective, an experimental design was adopted. 55 pre - intermediate learners participated in the study. They were randomly divided into one control group, ...

Populus euphratica tree is a species naturally growing in riparian zones of rivers in arid and semiarid region where seasonal flooding and soil waterloging provides the conditions for this species. The aim of current study was to assess survival, growth characteristics and biomass allocation of Populus euphratica seedlings exposed to combined flooding- salinity stress at four levels including c...

ژورنال: علوم آب و خاک 2012
حسن رمضان‌پور, , مهدی نوروزی , ,

Flooding and fire are important phevent which could impact the forests of north of Iran periodically. These phenomena could have undesirable effects on properties and quality of soil. This study was conducted in order to investigative the effects of flooding and fire on some soil properties in Lakan forest, Guilan province. Soil sampling was carried out on three replicates from three depths 0-3...

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