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Geological features and reservoir exploration of Shawan formation

Liu Chuanhu,Wang Xuezhong

Strategic Study of CAE 2011, Volume 13, Issue 4, Pages 87-95

Abstract:

Shawan exploration of Juggar Basin was faced with exploration problems of small scale oil sand, thin reservoir and rapid changes in lithology. In 2005, Pai 2 Well in Shawan formation drilled oil layer. It obtains 49.6 t/d industrial oil and the ground oil viscosity is 1.6 mPa·s. Practice and boldly exploiting contributes to Shawan's breakthrough of shallow, light oil and high lithologic oil reservoir, and high precision three dimensional seismic technology has played a crucial role. Chepaizi region of Shawan formation has double gathered and the "three floors" oil and gas accumulation mode of multiple oil source transporting, multi line oil, multi type enrichment and multi-grade coexistence characteristics. Shawan's light oil sand body shape has a good corresponding relationship with amplitude property, and the oil water boundary can be identified by seismic attributes. Oil of thin oil is oil lower limit, and powder and fine sandstone is lithologic lower limit, permeability of 0.022 μm² and porosity of 20 % is lower limit for the properties. Reservoir interval transit time is greater than 300 μs/m, resistivity is greater than 1.5 Ω·m and resistivity index is greater than 5.5. 23 reservoirs have been found in Shawan.

Keywords： formation oil and gas reservoiring mode oil and gas exploration petroleum geologic characteristics statisticslaw Junggar Basin Chunguang Oilfield

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Deriving Improved Newton's Second Law and the Law of Gravity at One Time with Form of Fractal Formula

Fu Yuhua

Strategic Study of CAE 2003, Volume 5, Issue 6, Pages 55-58

Abstract:

Newton's second law and the law of gravity are summarized with experimental results.For discussing the possibility of deriving the two laws theoretically, according to the law of conservationof energy, the method of deriving improved Newton's second law and the law of gravity at one timeresults suitable for this example with the constant dimension fractal form are as follows： improved lawof gravity F = - GMm/r^1.99989 , and improved Newton's second law F = ma^1.01458

Keywords： Newton & acute s second law the law of gravity theoretical derivation

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Improving existing “reaching law” for better discrete control of seismically-excited building structures

Zhijun LI, Zichen DENG

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 2, Pages 111-116 doi: 10.1007/s11709-009-0022-5

Abstract: In this paper, a novel “composite reaching law” was explained in details: 1) the equation of discreteThe results of numerical example analysis of the model show that the control law can effectively reduce

Keywords： discrete-time variable structure control composite reaching law chattering effect saturated control law

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How did Archimedes discover the law of buoyancy by experiment?

Hidetaka KUROKI

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 1, Pages 26-32 doi: 10.1007/s11465-016-0368-z

Abstract: water measurement of golden crown is impossible, and at his Eureka moment, Archimedes discovered the lawHe did not find the law of buoyancy but rather specific gravity of things at the moment.Through these measurements, he reached the discovery of the law of buoyancy directly by experiment.

Keywords： Archimedes’ principle buoyancy specific gravity Eureka Vitruvius displaced water balance floating body

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An emerging market for groundwater remediation in China: Policies, statistics, and future outlook

Deyi Hou, Guanghe Li, Paul Nathanail

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 1, doi: 10.1007/s11783-018-1027-x

Abstract: Plan in April 2015, a Soil Action Plan in May 2016, and a draft Soil Pollution Prevention and Control Law

Keywords： Groundwater pollution Contaminated land Groundwater remediation Emerging market

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Anovel approach of noise statistics estimate using H∞ filter in target tracking

Xie WANG,Mei-qin LIU,Zhen FAN,Sen-lin ZHANG

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 5, Pages 449-457 doi: 10.1631/FITEE.1500262

Abstract: Noise statistics are essential for estimation performance.In practical situations, however, a priori information of noise statistics is often imperfect.Previous work on noise statistics identification in linear systems still requires initial prior knowledge

Keywords： Noise estimate H∞ filter Target tracking

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China’s Ministry of Environmental Protection Adopted Draft Amendment to the Law on Prevention and Control

Fu Sun,Yi Liu

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 6, doi: 10.1007/s11783-016-0890-6

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Why does environmental compliance cost more than penalty? —A legal analysis on environmental acts of enterprises in China

DONG Hongwei

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 4, Pages 434-442 doi: 10.1007/s11783-007-0069-2

Abstract: In the environmental protection field of China, due to lower law-breaking cost but higher law-abidingcost , it is a common case that the enterprise chooses to break through the law on purpose.

Keywords： law-abiding punishment environmental protection law-breaking enterprise

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Enforcing the revised law on energy conservation and promoting the work of energy conservation

Fu Zhihuan

Strategic Study of CAE 2008, Volume 10, Issue 12, Pages 13-16

Abstract: fast and its utilizing efficiency is low, which is an issue standing out relatively, thus the prior lawwhole society, the Standing Committee of National People's Congress enacted the amendment of the lawThis article introduces the fundamental conceptions and main contents of the revised law, together with

Keywords： law energy conservation

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First law-based thermodynamic analysis on Kalina cycle

ZHANG Ying, HE Maogang, JIA Zhen, LIU Xun

Frontiers in Energy 2008, Volume 2, Issue 2, Pages 145-151 doi: 10.1007/s11708-008-0021-6

Abstract: Based on the first law of thermodynamics, and adopting the Peng-Robinson equation (P-R equation) as the

Keywords： ammonia-water P-R single-stage distillation Peng-Robinson pressure

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Performance Evaluation in Automatic Target Recognition Based on Fuzzy Comprehensive Evaluation and Statistics

Li Yanpeng,Li Xiang,Wang Hongqiang,Zhuang Zhaowen

Strategic Study of CAE 2005, Volume 7, Issue 3, Pages 64-68

Abstract: Recognition (ATR), the evaluation indexes and their measurement method are chosen with the application of statistics

Keywords： statistics fuzzy comprehensive evaluation automatic target recognition performance evaluation

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Erratum to: Industrial water treatment and industrial marine outfalls: Achieving the right balance

Law, Chunyan Tang

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 2, Pages 290-290 doi: 10.1007/s11705-017-1639-x

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Performance analysis of combined cycle power plant

Nikhil DEV,Rajesh ATTRI

Frontiers in Energy 2015, Volume 9, Issue 4, Pages 371-386 doi: 10.1007/s11708-015-0371-9

Abstract: of pressure ratio, turbine inlet temperature and ambient relative humidity on the first and second law

Keywords： first-law second-law exergy destruction components

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Thoughts on the Law of Automobile Industry Development

Fu Yuwu, Chen Xiumin

Strategic Study of CAE 2019, Volume 21, Issue 3, Pages 98-102 doi: 10.15302/J-SSCAE-2019.03.019

Abstract:

Automobile industry has accumulated numerous worldwide-accepted laws since its emergence over 130 years ago.China's automobile industry is currently facing a strategic opportunity for industrial transformation and upgrading, so it is necessary to strengthen the research on the laws of development for the automobile industry, thus to avoid any impulsive actions. In this paper, nine laws of development are summarized from the aspects of technology, market, and talent, including the complementary relationship between transformation and upgrading, the characteristics of the capital-, technology-, and labor-intensive industry, the inevitable requirements of innovation and collaboration, etc., thus to guide and promote the healthy and sustainable development of the automobile industry in China.

Keywords： automobile industry law of development sustainable development

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An investigation on patient dose in screen-film diagnostic radiology in Lhasa City, Xizang Autonomous Region, China

Xiang Du

Frontiers of Medicine 2013, Volume 7, Issue 4, Pages 506-509 doi: 10.1007/s11684-013-0294-y

Abstract:

This study aimed to investigate patient dose in diagnostic screen-film radiographic examinations in the city of Lhasa, China. Seven out of the twenty-six hospitals registered with the Lhasa Health Bureau were included in the investigation. The entrance surface air Kerma (ESAK) of seven conventional screen-film radiology X-ray equipment in these hospitals was measured with a QA dosimeter in September 2012. The X-ray examinations were divided into three categories: PA (posterior-anterior) chest, upper/lower limb, and AP (anterior-posterior) lumbar spine. For each category, ESAKs were calculated and analyzed. The mean ESAK was 0.6 mGy for PA chest, 0.3 mGy for upper/lower limb, and 1.8 mGy for AP lumbar spine. In addition, the mean ESAK value recorded for PA chest X-ray examinations exceeded the corresponding value recommended by the International Atomic Energy Agency (0.4 mGy).

Keywords： radiation dosage radiology radiation protection radiography/statistics & numerical data