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31 However, someone thinks that the optimum oil recovery mode of Lunnan oilfield should be hydraulic piston pump.

32 How to identify and describe low and non-effective circulation layers is one of important challenges of high efficient oilfield development in ultra-high water cut stage.

33 The corrosion reasons of burred metal pipelines are analyzed by studying the corrosion currently conditions of burred metal pipelines in Daqing oilfield.

34 Gas injection immiscible displacement has been selected to improve recovery efficiency in block of Tuha oilfield.

34 Sentencedict.com is a sentence dictionary, on which you can find excellent sentences for a large number of words.

35 Scientific output prediction is very important for the development in oilfield.

36 This is the Zhongyuan Oilfield in recent years, the maximum span of the construction of gas pipeline project, a pipeline project, but also that the first swing truss bridge tower.

37 This paper comprehensively studies the oilfield - class programmed decision by means of system engineering and operations research.

38 This acidizing fluid formulation was applied in Fanjia Oilfield, and got good effect.

39 This paper analyses the influence coefficient of reasonable crude proration plan in Gudong Oilfield.

40 The calculation method of primary wave and second wave speed were studied when the oil saturation and effective pressure of unconsolidated sandstone reservoir with high porosity in X Oilfield changed.

41 The flow unit method was applied to study remaining oil distribution in the high water-containing oilfield by using the data of the Shahejie Formation in the Liangjialou Reservoir.

42 Zhongyuan oilfield conducts a study on innoxious treatment of wasted drilling fluid to eliminate the contamination to soil and underground water source.

43 Correlatograph built by ETR and C19/C23 tricyclic terpane ratio could distinguish the samples from Es3 and Es1 source rocks, and be used to the oil-source correlation for oils from JX1-1 Oilfield.

44 A systemic and integrated criteria is thus obtained for the Ordovician carbonates in the Tahe oilfield.

45 After water flooding development many years, the geological formation in the east region of Fuyu oilfield changed badly, the pressure distribution is very different in some region.

46 The throughput rate is obviously reduced oil pipeline with the reduction of production in Zhongyuan oilfield.

47 Application of accelerant CaCl 2 in deepwell cementing was not allowed for some time in Liaohe Oilfield.

48 This paper introduces the technology of the sand control and oil production in Chengdao oilfield.

49 This study is an important foundation for further oilfield production adjustment and development.

50 Acidizing is important measure of oilfield stimulation, but the effect of acidizing fluid loss.

51 The well logging data from more than ten wells of an anonymous oilfield are processed using the software, and the plane graph of sedimentary microfacies is drawn.

52 In 2004, Dagang oilfield has completed 6 wells of drilling, oil production testing starting - up.

53 Water injection system is one of the five systems in oilfield.

54 The structure, operating principle and characteristics of motor muffler for pump room of oilfield have been introduced.

55 Based on the data sequence of oil unit operation cost from 1999 to 2005 in Talimu oilfield, yearly operation cost prediction is conducted successfully by using GM ( 1,1 ) grey model.

56 Two methods are selected to evaluate economic recoverable reserves of Shuangyang formation in Changchun oilfield:Economic Limit Water-cut Method and Cash- flow Method.

57 Alkaline silicic acid gel is an important agent used for water shutoff in oilfield. It can be prepared by adding the activator to the water glass under alkaline condition.

58 Carbonate reservoir in Tahe Oilfield is characterized by large burial depth, great thickness variations and strong anisotropism which result in the difficulty of making layer contrast.

59 In consideration of complex geologic characters and the contradictions existed in production of Huangjue Oilfield, an experimental study is conducted on interwell seism.

60 This paper analyzes the process of fine silt sand production in Liaohe Oilfield, studies sand production factors, mechanisms and the reasons of sand control difficulty.