Advanced Materials Research Vols. 347-353

Abstract: Thickness of reservoir has a direct and close contact with oil and gas exploration and development, reservoir thickness is directly related to success and failure of the exploration and development. The main problem of the Seismic exploration is the limit of the resolution, geophysical workers have done a lot work, but the effect has been not obvious. Mainly to the following questions: 1、it is difficult to determine the boundaries of the reservoir；2、the limits of the resolution still exists. In this paper, through the study of the high-resolution sequence Stratigraphy and fine calibration, we used the sequence boundary and flooding surface to build the initial model, and then the density inversion was done to indentify the oil and gas reservoir. On the basis of the inversion, the density ranges of the sandstone in the sequence were calculated through geostatistics, and then we correctly calculated the thickness of the sandstone in every sequence, in this way we not only solved the problem of reservoir boundaries, but also improved the resolution.

Abstract: Alkali diagenesis has been discovered firstly in Xujiahe formation in Sichuan basin. Alkali diagenesis is characterized by quartz dissolution pore. Based on thin section identification, scanning electron microscope and X-ray diffraction analysis, and considering the geological background, the characteristics and formation mechanism of alkali diagenesis in Xujiahe formation are studied thoroughly. The results indicate that the sandstone reservoir in Xujiahe formation has experienced a strong diagenesis and entered the stage of late diagenetic B. Diagenetic environment experienced a transition from acidity to alkalinity. Secondary pores produced by quartz dissolution contribute for the better quality of Xu_2 reservoir.

Abstract: A series of experiments were conducted according the formation condition of Bohai Oilfield, and applicability conditions and optimum parameters were gained. From economic considerations, foam injection volume should be from 0.3 to 0.5 PV. Applicable permeability ratio range of foam flooding is less than 15. When permeability variation coefficient is from 0.64 to 0.72, oil recovery improvement is the highest. When water cut of produced fluid for water flooding is from 80 % to 90 %, the effect of foam injection is the best. The blocking effect of foam in core is good for gas liquid ratio from 0.5 to 2.5. Considering gas crossflow, gas water ratio should be limited from 0.5 to 1.0. Slug injection is better than continuous and SAG injection methods. If there is high-permeable layer or high capacity channel with permeability higher than 10 D, deep blankoff using blocking agent should be implemented before foam injection.

Abstract: Developed a test using column flotation device, this experiment device in the structure designing considerate multifunctional traits, realizing continuous and respectively working. In the testing platform, installing two diameter vertical and inclined floatation column, so the device can complete roughing, selection and sweep the election testing. On researching the inflatable way, designing and testing two kinds of inflatable devices, one is jet, the other is sand core type. And testing three kinds of into ore ways, conical nozzle atomizer, atomizer grid and bar nozzle device. Through a series of contrast testing, making useful testing data, the testing provide the basis for designing the floatation column.

Abstract: Sodium diethyldithiocarbamate (SDDTC) is a new type of organic amine corrosion inhibitor. The corrosion inhibitor is not only good but also inhibition, bactericidal, antioxidant and other effects. Using dynamic potential polarization curves and the CMB-4510A inhibitor of the rapid assessment instrument its 316L steel in various concentrations of sodium chloride solution in the corrosion inhibition. Through the rapid evaluation of corrosion inhibitors and the determination of polarization curves, the results show that: corrosion rate increases with chloride concentration, with the increasing concentration of the solution SDDTC, inhibition effect was significantly better, when the concentration of 0.76g/l, inhibition efficiency is the best.

Abstract: Based on Fluid Dynamics and Combustion Theory, the model of pipeline was created by the software of CFD, and the spread of gas explosion was simulated in the conditions of pipelines of different lengths. The flame speed was obtained, as well as the the law of pressure changing with time in the pipeline. The results showed that the acceleration of flame speed could be divided into three phases: diffuse transmit, rise rapidly, inertial motion; oscillation pressure affected the turbulence of flame and was the significant reason to the rise of flame speed; when the pipeline got longer, the maximal flame speed would be higher, in addition, the transition distance that flame speed rise to a high value would tend to stable.

Abstract: This study rebuilds the computer model of combination building for preparations to enhance the seismic design of nuclear power plants. The lumped mass stick model is used to generate the natural frequency and floor response spectrum, and this paper conducts a comparison of the variations between the original and rebuilt model before an evaluation. The analysis results indicate that the natural frequency and floor response spectrum provided by the novel lumped mass stick model represent the overall building responses in a reasonable fashion. The results generated by the lumped mass model fit those generated by the previous calculations in 1986. The lumped mass model is suitable for performing the safe evaluation of combination building after an occurrence of earthquakes and tsunamis.

Abstract: This paper has analyzed the degree of agricultural waste recycling utilization, and problems existing in current rural calculated degree of waste recycling in Heilongjiang province, using AHP and entropy weight method integrated and construct the rural waste recycling system, and points out that the evaluation index system of agricultural waste recycling after the development direction.,This paper has analyzed the degree of agricultural waste recycling utilization, and problems existing in current rural calculated degree of waste recycling in Heilongjiang province, using AHP and entropy weight method integrated and construct the rural waste recycling system, and points out that the evaluation index system of agricultural waste recycling after the development direction.

Abstract: This article chooses Tai Zhou area power sustainable development as the research object, combining the study area-specific nature, ecology and power economic development, ecological carrying capacity of coastal areas in TAI Zhou as a precondition to achieve sustainable development objectives of power. From the resource capacity, the market capacity, and environmental carrying capacity three aspects to build a coastal area of TAI Zhou Power Development Study of ecological carrying capacity evaluation index system. State space law on the change of status of regional ecological carrying capacity is analyzed, discussed the changes in ecological carrying capacity of the main power to seek ways to achieve sustainable development of electricity method.

Abstract: At room temperature and pressures, the reaction between sodium cyanide and platinum group metals (PGMs) does not occur because of poor kinetics. However, at elevated temperatures between 100°C and 180°C, PGMs can be dissolved by sodium cyanide like the reaction of gold. In this work, the dissolution of Palladium was measured in pressure clear cyanide solution using a Palladium rotating disk. The data at different rotation speed, different cyanide concentrations, different temperature and different oxygen pressure are obtained. With increasing cyanide concentration and oxygen pressuer, the dissolution first increased to a maximum value and then decreased. With increasing temperature the dissolution is increased.The dissolution was found to have a relation of the cyanide and oxygen level. The dissolution were independent of rotation speed for oxygen-saturated solutions and cyanide concentrations above 5 mol.m-3 and were well below chemical reaction-limited for cyanide and oxygen.