Journal of Southwest Petroleum University(Science & Technology Edition)

SIGNIFICANCE OF GEOCHEMISTRY ENERGY TkEORY IN THE EARTH' S EVOLUTION

Hong Qing-yu

1990, 12(2): 1-5. DOI: 10.3863/j.issn.1000-2634.1990.02.01

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The calculation of encrgy indicates that the earth's mantic is not balanced，or unstable.The earth's crust proliferates by the action of extrusion and spill of the ocean median ridge and fold.The critical position of granite energy and the location of granite in space indicate that the primary cause of its formation is the granitization of sedimentary rocks.

ON CHEMICAL CHARACTERISTICS AND CLASSIFICATION OF OIL FIELD WATER IN CONTINENTAL SEDIMENTARY BASIN OF CHINA

Yan Wan-sun

1990, 12(2): 6-14. DOI: 10.3863/j.issn.1000-2634.1990.02.02

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According to predecessor's research materials, the chemical characteristics of oil field water in continental sedimentary basin of China are: wide-ranged fluctuation of mineralization degree; obvious ion separation; higher content of sulfates; containing of many miniature elements，such as，I，Br, B etc; positive isotope , negative :and richly accumulated organic materials. The article further points out that the occurence of the chemical characteristics of oil field water is chiefly restricted by different depositional environments and conditions at last, the author approaches the classification of continental oil field water，and believes that it remains to be further discussed that the classification of continental oil field water according to the variation coefficient of ion composite is applied to the west and South-west of China.

COMPUTER-AIDED WELL TESTING INTERPRETATION FISSURED RESERVOIRS WITH DOUBLE-POROSITY BEHAVIOR

Li Yun Zhan Da-shu

1990, 12(2): 15-26. DOI: 10.3863/j.issn.1000-2634.1990.02.03

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This paper summarizes current well testing theory and analysis techniques for fissured reservoirs with double-porosity behavior，which include mathematical models and their analytic solutions and numerical solutions. Based on these solution，a new well testing analysis method and interpretation system are computer-aided presented. Also, the basic structure of the interpretation system is described in the paper.

OPTIMAL SELECTION OF PERFORATION PARAMETERS FOR MAXIMUM PRODUCTIVITY OF WELL

Pan Ying-de Tang Yu-la Feng Yao-ping

1990, 12(2): 27-37. DOI: 10.3863/j.issn.1000-2634.1990.02.04

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This paper introduces the results of electricity simulation and mathematical model of finite element method of perforating completion well, analyze the elect of peroration perforation, perforation density and perforation phase on well productivity, and analyzes the arrangement order of relative importance of affecting PR of perforated well. It also introduces calculating software and quanta alive relationship and monograms, Finally，it presents the applied results of optimally selected perforation parameters in the field of North China.

DISPERSION OF MISCIBLE FLUIDS FLOWING THROUGH POROUS MEDIA

Yao Hengshen Peng Ke-zong

1990, 12(2): 38-47. DOI: 10.3863/j.issn.1000-2634.1990.02.05

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This paper deals mainly with hydrodynamic dispersion. Based on the analysis of the experiment results and the widely used formulas for calculating dispersion coefficients reported in the literatures，two improved methods are presented for determining the coefficients, The relational expression of flow rates and dispersion coefficient has also been developed for similar cores.

AN EFFICIENT HYDRAULLC PROGRAM DESIGN

Zhou Kai-ji Deng Chuan-guang

1990, 12(2): 48-56. DOI: 10.3863/j.issn.1000-2634.1990.02.06

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The ROP is increased as hydraulic horsepower per square inch of bit is increased. At the same time, the hydraulic end of pumps. the damageable parts of high pressure circulating system，and the expenses of oil fuel are increased while the useful life of equipment and drilling tool is shortened.Therefore, the principle of hydraulic parameter design is that economic profits obtained from the increment of ROP must be equal to or more than those caused by hydraulic horsepower increment.

NONCONFORMING NODAL EXPANSION FEA FOR STATIONARY VISCOUS IMPRESSIBLE NAVIER－STOKES EQUATIONS

Pu Chun-sheng Zhang Shaohuai

1990, 12(2): 57-63. DOI: 10.3863/j.issn.1000-2634.1990.02.07

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In this paper，the nodal expansion method of neutron diffusion equation is applied to the computation of flowing field and the nonconforming nodal expansion finite element approximation is set up for solving stationary viscous impressible Navier-Stokes equations. The existence uniqueness convergence of the finite element solution are proved . The numerical test Stokes problem is carried out and satisfactory results are obtained

OPTIMAL ALLOCATION MODEL F0R PRODUCTION OF GAS FIELD DEVELOPMENT

Liu Dehua Li Guang-yao

1990, 12(2): 64-72. DOI: 10.3863/j.issn.1000-2634.1990.02.08

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The optimal allocation model for the production of gas field development is presented in this paper. It is used to optimize the allocation of the production and to make the investment minimum in gas field development. It is applied in gas field，and the satisfactory results are obtained.

RESEARCH ON A NEW UNIDIMENSIANALSEARCH

Chui Lan Liu Xue-zhong

1990, 12(2): 73-83. DOI: 10.3863/j.issn.1000-2634.1990.02.09

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By improving RMS method a new unidimensional search (named IRMS method) is presented in this paper. And concrete steps of the algorithm are also given. The results of calculating many examination problem show that the method is efficient，the calculation is correct and the applicability is wide.

NEAR-THRESHOLD CORROSION FATIGUE OF MARINE STRUCTURAL STEELS

Xu Zhi-yue

1990, 12(2): 84-91. DOI: 10.3863/j.issn.1000-2634.1990.02.10

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The test study of the corrosion fatigue of two new high strength low alloy steels potentials is conducted under different corrosion environments, cathodic stress frequencies. The effect of the above factors on the corrosion fatigue crack propagation rate is described and analyzed in this paper.

APPROACH TO LIMIT SETTING DEPTH OF ELECTRICAL OIL-SUBMERSIBLE PUMPS

Liang Zheng

1990, 12(2): 92-101. DOI: 10.3863/j.issn.1000-2634.1990.02.11

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Electrical oil submersible pump is one of the mail artificial lift method s in oil-field mid back development stage and has been widely used in mail oil-producing countries. Starting with shaft’s strength and stiffness questions of oil submersible multi-stage centrigugal pumps, this paper approaches the limit setting depth of electrical oil submersible pump using the continuous beams theory under the action of direct compression and lateral load. Finally the 200 m3 D electrical oil submersible pump mad in china is taken for example to show the effect of concerned parameters on deformation and strength of the shaft, and analyze and discuss the main calculation results

RESEARCH ON TREATMENT OF HIGH RESIDUE DRILLING WASTEWATER BY COAGULATION METHOD

Zhang Zhen-xiang Chen Ji

1990, 12(2): 102-110. DOI: 10.3863/j.issn.1000-2634.1990.02.12

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In general，the results of treating high residue drilling wastewater by coagulation are dissatisfactory. Based on the experiments，this paper sums up the relationship between the doses of coagulants and the total residues in drilling wastewater，and presents the ways to improve the results of treating high residue drilling wastewater: dilution method and grading coagulation method.

ANALYSIS AND DESIGN OF AN UPS INVERTER SYSTEM

Feng Wen-jiang

1990, 12(2): 111-116. DOI: 10.3863/j.issn.1000-2634.1990.02.13

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An UPS inverter system is designed in this Paper. The double half bridge structure is used in the main circuit. Inverter output voltage waveform is the sixteen step-waves, The combination of the PWM control with the sequence pulse control is used in the control circuit which can perform the transistors functions of transistors. By using CAD technique, the power transistors are thought of as the ideal switches and used for analyzing characteristics of the magnetic coupling device, By analyzing the effect states and the circuit parameters，the basis is provided for the circuit design.

QUANTIZATION OF ROBERTSON-WALKER GEOMETRY COUPLED TO A CONFORMALLY INVARIANT SCALAR FIELD

Wang Wen-fu Tao Cai-de

1990, 12(2): 117-122. DOI: 10.3863/j.issn.1000-2634.1990.02.14

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A Robertson-walker universe coupled to a conformally invariant scalar field is quantized following the canonical formalism for constrained Hamiltonian systems, The exact solution is found to corresponding wheeler-Dewitt equation. It is shown that in the case under discussion the parameter vanishing. The parameter p denotes some factor-ordering ambiguty in the Quantum Gravitational Theory. It is also shown that the extreme value of the scale factor of the universe is the order of planck length.

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