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This paper is the study of the gas communication andthe loss of hyd rostatic head of cement column caused by the gelling of cement slurry in the case of simulating the changes of temperature and pressuse in the well bore. From the results of experiments, it has been proved to be true that the gas communication and the loss of hydrostatic head of cement column caused by the gelling of cement slurry are serious, and the loss of hydrostatic head of cement column caused by the gelling of cement slurry can be calculated... This paper is the study of the gas communication andthe loss of hyd rostatic head of cement column caused by the gelling of cement slurry in the case of simulating the changes of temperature and pressuse in the well bore. From the results of experiments, it has been proved to be true that the gas communication and the loss of hydrostatic head of cement column caused by the gelling of cement slurry are serious, and the loss of hydrostatic head of cement column caused by the gelling of cement slurry can be calculated quantatively after experimentation and mathematical analysis. This makes it possible that a sound basis is provided for taking technical measures to prevent oil, gas and water communication in the casing cementing job. 本文是在摸擬井身溫度和壓力變化的情況下,對水泥漿柱由于水泥膠凝引起的“失重”和氣侵的研究。從實驗研究的結果證實了水泥膠凝引起的“失重”和氣侵是嚴重的,而水泥漿膠凝引起的“失重”,通過實驗和數學分析后是可以作到定量計算的,這就可能給固井施工中,為防止油、氣、水竄工藝技術措施,提供可靠的基本依據。 Some energy saying measures were carried out in the FCC unit of the 2nd Refinery during 1980,including:the use of CO-combustion promotor,energy recovery from flue gas,rearrangement of heat exchanges,steam generation by waste heat,and boiler feed water preheat by low-temperature effluents,resulting a decrease of energy consumption by 65×10~4 kcal/ton of feed. 石油二廠流化催化裂化裝置在1980年又進行了節能技術改造.主要項目是:采用助燃劑的完全再生,煙氣能量回收,換熱流程調整,余熱發生蒸汽,以及鍋爐水預熱回收低溫位熱等.通過改造,裝置能耗下降到65萬千卡/噸原料油. A techno-economic analysis with, respect to the energy-savings in refinery was presented and a number of proposals were recommended accordingly. 作者通過參加煉油廠節能規劃工作,對煉油廠節能中的一些技術問題,進行了技術經濟分析,提出了一些看法和建議。
技術
technology
Research on Technology for Sand Control of Permeable Microfine Cement System 可滲透性微細水泥體系防砂技術研究 短句來源 Remaining Oil Description of Untabulated Reservoir and Tapping Potentia Technology Research of Surfactant Flooding in Xing1-3 Region 杏1-3區表外儲層剩余油描述及注表活劑挖潛技術研究 短句來源 A Study on Percolation Mechanism of Low Permeability Reservoir and Recovery Technology 低滲透油藏滲流機理及開發技術研究 短句來源 The BFS MTC Cementing Technology Research 水硬高爐礦渣MTC固井技術研究 短句來源 The Weak Gel Flooding Technology Research 弱凝膠驅油技術研究 短句來源 更多 technique
Study on Key Technique of Crude Oil Transport Pipeline Leak Detection 原油管道泄漏檢測若干關鍵技術研究 短句來源 Early-Stage Description Technique and Its Application of Fluvial Facies Sandstone Gas Reservoir 河流相砂巖氣藏早期描述的技術方法及應用 短句來源 The Modern Reservoir Management and Control Technique 現代油氣藏管理與控制技術 短句來源 Research for the Development Technique of Low Permeability Gas Reservoirs in Sichuan Basin 四川盆地低滲透氣藏開發技術研究 短句來源 The Research of Seismic Identification Technique of Heterogeneous and Fracture Tight Gas Reservoir of Xujiahe Formation, in Chuanxi Depression 川西坳陷深層致密非均質裂縫性氣藏地震識別技術研究 短句來源 更多 method
Discussion On the Optimum Technique in Russell Method 論Russell法中的優化技術 短句來源 Technology-Economic Analysis of the Design of Auxilary Tube and Variable Diameter Tube in Gas Transportation Pipeline-Minimum Metal Consumption Method 輸氣管線副管與變徑管設計技術經濟分析——最小金屬耗量法 短句來源 The Technique and Method to Determine the Safety of Working Derrick 在用井架安全性測評技術及方法 短句來源 Hoisting and Installation Technique in Petro-chemical Equipment Renewal─Suspended Cable Routing Method 石化設備更新改造吊裝技術──懸索走線法 短句來源 Crosshole Seismic Technology──A New Improving Seismic Method Useful for Oil Field Development 井間地震技術──方興未艾的開發地震新思路 短句來源 更多 tech
Probe Into Application Tech nology of Clean Fuel Production 生產清潔燃料應用技術的探討 短句來源 Application of Numerical Well Logging Tech in Zhongyuan Oilfield. 數值試井技術在中原油田的應用 短句來源 Tech of Pulse Neutron Oxygen Activation Logging and Its Application in Dagang Oilfield. 脈沖中子氧活化測井技術及其在大港油田的應用 短句來源 Influence of Tidal Action on DST Testing Data and Its Emendation Tech Study 潮汐效應對DST測試資料的影響及校正技術研究 短句來源 Tech of Net Pressure Monitoring for Acid and Fracture and Its Application in Tahe Oilfield. 塔河油田酸壓凈壓力監測技術及應用 短句來源 更多 
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NEW TECHNOLOGY FOR DRUG DISCOVERY BASED UPON INSERTION OF LIGANDS INTO GENE SEQUENCES BY NUCLEAR RECEPTOR PROTEINS
Two scheduling problems in group technology with deteriorating jobs
This paper considers single-machine scheduling problems in group technology with the jobs' processing times being simple linear functions of their start times.
Impact of operating costs on investment strategies in new technology adoption with a further new technology anticipated
This paper studies a dynamic duopoly model in which two firms compete in adoption of current technology with a further new technology anticipated.
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A number of q,t-analogues of this fact were conjectured in [10]; the present paper proves most of those conjectures, as well as some new identities suggested by the proof technique.
In this paper we present a technique for proving bounds of the Boas-Kac-Lukosz type for unsharply restricted functions with nonnegative Fourier transforms.
This technique gives rise to several "epsilonized" versions of the Boas-Kac-Lukosz bound (which deals with the case f(u) = 0, |u| ≥ 1).
The basic technique uses factorization of group elements and Gel'fand-Tsetlin bases to simplify the computations, and may be extended to treat the computation of Fourier transforms of finitely supported distributions on the group.
Our technique applies, in particular, to the Shannon and Journe wavelet sets.
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In this note we present a very simple method of proving that some hyperbolic manifoldsM have finite sheeted covers with positive first Betti number.
The method applies to the standard arithmetic subgroups ofSO(n,1) (a case which was proved previously by Millson [Mi]), to the non-arithmetic lattices inSO(n,1) constructed by Gromov and Piatetski-Shapiro [GPS] and to groups generated by reflections.
(HereM3 denotes the vector space of 3×3 matrices over k andp>amp;gt;3.) The method of proof involves an induction, and is potentially of wide applicability.
The proof is based on a variant of Moser's method using time-dependent vector fields.
In the second part we apply this method to obtain pseudo-Riemannian homogeneous manifolds with real Killing spinors.
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The purpose of this paper is to discuss how the value of high-tech firm can be rationally valued by taking into account managerial flexibility when its future revenue is uncertain, thereby the firm's manager can make rational investment decisions.
Besides the needs arising from large-scale high-temperature plants, the high tech developments, such as micro chemo-mechanical systems and high-power electronics, provide new challenges to structural integrity technology.
An Automated Installation for Measuring the Complex Thermal Expansion Coefficient of Polymers by the Modulation Dilatometry Tech
Review: Motov, D.L., Fizikokhimiya i sul'fatnaya tekhnologiya titanoredkometall'nogo syr'ya (Physical Chemistry and Sulfate Tech
Feasibility of using holographic interferometry in selecting the shape of an immobile joint to be used in a high-tech device is discussed.
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