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- Arps decline curve is basic mathematic model used for studying oil/gas production decline regularity at present, but it has some defects. Arps遞減曲線是目前用於研究油氣產量遞減規律的基本數學模型;但該模型仍有一些不足之處.
- Arps equation,a optimun fitting of production decline curve analysis of oil and gas reservoirs is presented in this paper. Arps方程的推導,提出了油氣藏產量遞減曲線分析的最佳擬合法。
- Traditional Arps production decline analysis method requires to determine the initial time, production and decline ratio before analyzing. 傳統的Arps產量遞減分析方法要求事先選定遞減規律的初始時間、初始產量及初始遞減率,事實上這些參數是很難確定的。
- Based on production decline curve equation, through mathematical derivation, a kind of logarithmic type production decline curve equation is obtained. 在產量衰減曲線方程的基礎上,通過數學推導,得到了一種對數型產量衰減曲線方程。
- Rome) Sixty-one governmental officials will meet next week in Bangkok to discuss the tendency of the world's rice production decline that is increasingly becoming a concern . 法新社羅馬電)六十一個國家的政府官員下周將在曼谷集會,討論日益令人關切的全球稻米產量下降趨勢問題。
- To study the production decline is very significant for the later adjustment, production prediction and recoverable-reserves rechecking during a gas reservoir development. 產量遞減規律的研究對搞好氣藏開發後期調整,產量預測及可采儲量複核都有重要意義。
- For waterflooding oilfields, the methods for prediction of recoverable re-serves include water drive curve, production decline, forecast model and numerical simulation. 然而,當油氣田業已進入遞減階段之後,產量遞減法則是最為重要的預測方法。
- A production decline model which is fit for water huff and puff well is established based on the in-site production data and imbibition experiment in lab. 並根據礦場生產動態數據和室內滲吸實驗,建立適合於注水吞吐井的產量遞減模型。
- But from the production history of the individual well in the block, most of the wells have such problems as short stable production period and quick production decline. 但從該區塊單井的生產歷史來看,大部分井存在穩產時間短、遞減快的問題。
- TheCommerce Department revealed that during the last three months of 2008, itsgross domestic product decline at an annual rate of 6.2%, the sharpest fallingin 25 years. 商務部指出,2008年的最後三個月,國內生產總值以每年6.;2%25的速度下降,是25年來最急劇的下滑。
- On the basis of Arps fundamental production decline law, a simple and reliable analysis method of production decline was presented, and the linear relationship between cumulative production rate and time in log coordinate system was developed. Arps基本的遞減規律出發;提出了一種新的簡單可靠的分析產量遞減的方法.;該方法在對數坐標中建立了累積產量與時間的線性關係
- Based on the analyses of Arps production decline law and changes of remaining reserve-production ratio. a simple and convenient method for estimating decline factors and recoverable reserves during decline period in any oil- field was presented. 通過對Arps產量遞減規律與油田剩餘儲采比變化規律關係的分析,給出了一種計算遞減期油田遞減指數與可 采儲量的簡便方法。
- Through choosing referential time, production and decline ratio, this method is more flexible, simple and practical than the Arps method in terms of analyzing the production decline. 通過選用參考時間、參考產量和參考遞減率,使得遞減分析方法具有一定的靈活性和優越性、該方法簡便、實用。
- After the gas field has entered into the production decline stage , its decline law can be studied by use of the typical curve fitting method or coordinate transform method through Arps hyperbolic decline equation generally . 氣田進入產量遞減期后 ,一般通過Arps遞減方程 ,應用典型曲線擬合或坐標變換法來研究遞減規律。
- Lai Enna said: "The people are most concerned about is that Apple's high-end products decline. 萊恩納說:「人們最擔心的是,蘋果高端產品出現頹勢。
- There are some results as below:(1) With mathematical model improvement of unsteady porous flow, new theoretical typecurves are plotted which can enlarge Arps production decline curves from leaky boundaries. 通過數學模型和分析計算得到了以下認識和結果:(1)改進了直井不穩態產能分析滲流數學模型,求解后形成了新的理論圖板。
- AFP report from Rome) Sixty-one governmental officials will meet next week in Bangkok to discuss the tendency of the world's rice production decline that is increasingly becoming a concern . 法新社羅馬電)六十一個國家的政府官員下周將在曼谷集會,討論日益令人關切的全球稻米產量下降趨勢問題。
- Based on the production decline method in petroleum reservoir engineering, a new method to predict recoverable and remaining recoverable reserves of oil and gas fields has been proposed in this paper. 基於油氣藏工程中的產量遞減法,提出了預測油氣田可采儲量和剩餘可采儲量的新方法。
- The tong-term tune bests of Pinus yunnanensis management lead to bio-diversity decrease, diseases and insect pests damage, genetic degradation, and productivity decline. 摘要長期以來,雲南松的純林經營使得生物多樣性降低、林分穩定性變差、遺傳品質退化、林分生產力下降,從而導致生態系統功能衰退。
- What percentage of the earth is covered by oceans? 地球上百分之多少被海水覆蓋著?