1) There is a heavy oil scum on the surface at one end, which has collected naturally.

2) A third appraisal of this potentially significant heavy oil field will be drilled in 1993.

3) Adhesion of heavy oil to posterior lens capsule.

4) Then, heavy oil reservoirs are comprehensively evaluated and reservoirs with higher values will be developed preferentially.

5) Xing 23 fault - block is a small heavy oil reservoir that is being developed in Jilin oilfield currently.

6) The deep,(http:///heavy oil.html) extra - heavy oil reservoir in Leng 42 fault block is recovered by cyclic steam stimulation.

7) As increasing of heavy oil component in raw oil and rising of light oil yield, this result in stricter requirement for lift pipe reactor of oil refining unit.

8) Casing damage causes the tremendous economic loss in heavy oil fields, on which the domestic and foreign experts had done a great quantity of work, but the problem has not been properly solved.

9) The heavy oil is distributed at handing wall, light oil and gas reservoir at the footwall.

10) Cold production has been successfully applied to the heavy oil recovery in uncemented sandstones taking as a new production technology.

11) A well stimulation method used on heavy oil reservoirs during primary recovery.

12) Established a method to design rod string of heavy oil directional wells.

13) Finished concept design of consecutively lifting excessively heavy oil production equipment without reducing viscosity.

14) In order to solve the problem of heavy oil sewage, field treatment experiment has been carried out by using heavy oil sewage from Huan 4 gathering station, Liaohe oil province.

15) The results showed that reducing trend of heavy oil flux about oxidation period of rotary anode furnace in copper refining was quite obvious, its saving energy w...

16) An integrated process of heavy oil hydrotreating succeeded with catalytic cracking was conducted in the laboratory.

17) The heavy oil reservoirs of Lukeqin structure belt are in distribution areas of pre-Jurassic heavy oil reservoirs which is discovered in the Turpan-Hami basin.

18) As an important parameter for safe operation of steam-injection boiler, dryness is also an important target which affects the effect of heavy oil thermal drive.

19) Combined with process characteristics of flow bed flashing calciner, an analysis is carried out at flashing flow bed calciner on the application of coke oven gas as fuel replacing heavy oil.

20) Both the two plates of thrust are the thick sandstone with high permeability, and these thrust block traps can accumulated heavy oil.

21) Among hydrogen donors tested, tetralin has the biggest effect on super heavy oil aqua-thermolysis.

22) In combination with author 's working practice, the interior maintenace measure of long term idle process equipment of heavy oil catalytic cracking unit is recommended.

23) With the riser height increases, the mass fraction of heavy oil reduces, while the weight of gasoline, LPG, gas and coke has been increasing.

24) This paper discusses how much to add the capacity of adulterating heavy oil in the existing primary coverter. The chemical reaction theory about the combustion has also been discussed.

25) In the long-term operation of atmospheric and vacuum heat furnace that use vacuum heavy oil as fuel, thesurface of nailhead furnace tube in the convection chamber was seriously deposited.

26) This product contains a number of surface-active agent, water softener compound made of concentrated liquid Degreaser can be rapid and effective removal of heavy oil.

27) The catalyst has excellent anti-metal performance when being used in heavy oil cracking reaction, and can increase the weight ratio of liquefied gas, gasoline and diesel fuel in the product.

28) In the liquefaction process there was reversible reaction between the heavy oil and volatile organic compounds; organic dissolved was mainly transformed into gas in the secondary reaction.

29) Aiming at the existing problems of gas making with heavy oil, this paper suggests to use diesel oil as feedstock of cyclic catalysis cracking gas making.

30) Purpose To calculate the cementation factor of unconsolidated rock of heavy oil reservoir.

31) Moreover, the application of this technology in suitable area is of importance for improving producing degree and ultimate recovery factor of super heavy oil reserves.

32) Heavy crude oil of Tahe is a inferior and heavy oil. It is processed with the shallow splitting unit and cannot get qualified with light oil, but can get qualified with heavy fuel oil.

33) This system is especially suitable for the remote well, heavy oil well and low level in deep well. The system can run under the unwatched condition. Its unique adv...

34) The heavy oil of TAHE oilfield in high deep well has the unique feature of high viscosity, high density and poor diffluence .

35) When flowing in the formation heavy oil always reveals non - Newton rheological behavior.

36) The catalyst of the invention is used for catalytic cracking of heavy oil, the conversion rate is high(sentence dictionary), the yield of gasoline is high and the coke yield is low.

37) Formation burst pressure is one of the key parameters for the thermal production of heavy oil, drilling engineering and downhole operation.

38) That heavy oil will clog up the machinery, ie prevent it from working properly.

39) Monggulin sandstone reservoir is a thin layered heavy oil reservoir with weak edge water.

40) A ban on heavy oil, which is expected to be adopted by the International Maritime Organization later this year, would effectively block big cruise ships.

41) In this paper, it is researched that the optimum technological factors of emulsified heavy oil and the research of heavy oil, coal and water triplex synfuel .

42) The skewback bearer will be directly heated by gushing flame when tuckstone end dropped happens , which threats the safe run of the furnace and causes heavy oil consumption up .

43) This paper studied the calculating method for a series of economic limit indexes concerned with new area development, old area adjustment and heavy oil development.

44) The principle and procedure for determining heavy oil emulsifying HLB with fluorescence method were introduced.

45) Utilization efficiency of heavy oil reserves of will further increase after commercial usage of cold production technology.

46) Simulation is processed with the example of the shell heavy oil fractionators benchmark problem, and the result shows the validity of the algorithm.

47) Meanwhile, an effective method of obtaining acidic components from heavy oil by solvent extraction was provided and the suitable extraction condition was explored.

48) Fault block of east Shan 6 in Shanjiasi oilfield is a typical super heavy oil reservoir.

49) Steam thermal drive oil is the method in which high pressure steam with suitable dryness fraction is injected into heavy oil stratum.

50) In the following soak (shut-in) phase, the well is shut in for days to allow the heat to dissipate in the reservoir and the heavy oil to heat up and become less viscous.

51) Taking solvent refining technique to produce rubber oil furfural extract oil and catalytic cracking heavy oil.

52) Heavy oil emulsions, comprising decant oils and No. 6, No. 5 and No. 4 oils, and water are stabilized by adding certain saccharide-based esters.

53) Test at operating temperaturCold engine, tight ( new ) engine, or heavy oil will increase starter amperage draw.

54) All the countries in the world have been looking for the economical and reliable heavy oil transportation method ever since the beginning of heavy oil production.

55) The catalyst precursors can form a hydroprocessing molybdenum sulfide catalyst in heavy oil feedstocks.

56) By virtue critical temperature of heavy oil and the frequency, the heating time is estimated.

57) The combustion mechanics and the preparation method of the emulsified heavy oil were introduced, and the combustion result of the heavy petroleum in the ceramics tunnel furnace was discussed.

58) Electrical resistance heating ( ERH ) is a new thermal stimulation technique for recovering heavy oil reservoirs.

59) By analyzing for the flange leakage on a heavy oil catalytic pyrolysis unit, the writer put forward a treatment method, i. e. to replace old asbestos gasket with a compound corrugated gasket.

60) In this paper, a simulation device of vertical flow constructed wetland was used to treat salinity heavy oil wastewater in Xinjiang oilfield.

61) Deeper reaction degree and the catalyst with strong heavy oil crackability would be a prior selection to meet cracking requirements due to heavier fractions in hydrogenated residue.

62) The changes of viscosity, hydrocarbon composition and average relative molecular mass of Shengli heavy oil in catalytic upgrading by oil-soluble catalyst XAGD-2 were investigated.

63) Fluid catalytic cracking ( FCC ) is one of the most important processes converting heavy oil to light oils.

64) H2S is a highly toxic and highly corrosive gases. In recent years H2S has been found in some areas of Liaohe Oilfield, especially in heavy oil thermal recovery block.

65) The star-up of the heavy oil fluid catalytic cracking unit of Wuhan Petrochemical Works adopting the technology of Stone-Webster Co. is briefly described.

66) The dual-group hydrocarbon type rubber plasticizer was prepared using the heavy components in the production of heavy oil catalytic cracking by secondary deasphalting process.

67) The thermodynamic sorption behavior mechanism of expanded graphite for heavy oil in simulated seawater were investigated.

68) Float production line design: We can design float production line with daily melting capacity of 200t-900t , the fuel can be heavy oil , coal gas , natural gas,(http:///heavy oil.html) coke-oven gas or others.

69) A newtype selective blocking agent for heavy oil is studied, and it is applied to the field of Jilin petroliferous area.

70) The paper bring forward the scheme of calefaction to heavy oil by the cooling water of diesel engine according to the actual condition of locomotive, so that the viscosity be controlled.

71) Aiming at the geological characteristics of NB35-2 heavy oil reservoir, conventional heavy oil in-situ autogenetic foam combination flooding recovery technology is proposed in this paper.

72) Method Heavy oil is recovered by small direct-fired steam-gas generator through injecting mixed gas.

73) Effervescent atomizer is a new-style nozzle, and it was provided many characteristics with high quality spray, low air consumption, so it is suitable for atomizing liquid fuel such as heavy oil.

74) The corrosion causes of the catalysis and desulfurization system for heavy oil were analysed through the performance comparison between MDEA and DIPA, and some countermeasures were proposed.

75) The Wangzhuang oilfield belong to heavy oil reservoir of strong sensitivity.

76) Heavy oil recovery rate can be increased and gasoline olefin hydrocarbon content can be decreased effectively by catalytic cracking operation parameters optimization.

77) A new multivariate linear model was proposed to associate viscosity and group composition of heavy oil. Multiple correlation coefficient of the model is 0.9885.

78) In this paper, base on the gradually exposed problems of the current Tahe oilfield heavy oil mixed thin oil visbreaking, conducted a wellbore foaming oil visbreaking research.

79) Finally, this control strategy is success fully applied to the control of the Shell heavy oil fractionators benchmark problem.

80) A mathematical model of heavy oil flux about rotary anode furnace in copper refining based on warm-up burning air was established based on principle of energy balance.

81) Reserves value of heavy oil is calculated mainly with cash flow method.

82) Productivity analysis of horizontal well with non-Newtonian power law fluid is helpful to carry out rational development and evaluation of heavy oil reservoirs.

83) Later he told his parents that he had been a dockworker who had fallen asleep in the hold of a ship when a heavy oil drum fell on him and killed him instantly.

84) The results showed that the aromatic ratio, heteroatom and metal contents contribute to the high polarity of the asphaltenes. This is the basis of other properties of heavy oil.

85) Development scheme is a critical parameter to influence the ultimate recovery factor of super heavy oil .

86) The corrosion in atmospheric-vacuum distillation unit mainly occurred in tower overhead, condensing system, tower bottom and heavy oil inlet section.

87) Said method has better heavy oil cracking ability and desulphurizing ability.

88) The heavy oil and oil - bearing sand reservoirs of Songliao basin are of considerable prospective reserves.

89) The selected bacteria species used for Kara-may Heavy Oil are introduced with living environment and effects of degrading and emulsifying on heavy oil.

90) This paper studies the type and reason of water production, analyzes its impact on ultra heavy oil development, and proposes maneuverable technical countermeasures in conj.

91) The heavy oil is distributed at the handing wall, light oil and gas reservoir at the footwall.

92) The results show that there exist a critical production and injection ratio(CPIR)under an optimized steam injection rate for a given heavy oil reservoir.

93) Raffinate loses the emulsifying ability and low interfacial tension property, so the acidic components in heavy oil are the major active component for emulsification of basic water.

94) Heavy oil emulsion visbreaking can alternate the process of blending light oil in heavy oil and electrical heating of super- heavy oil, but has not been broadly popularized yet.

95) Shanjiasi oil field is a deep buried heavy oil field with active edge and bottom water.