Table of Content

20 December 2003, Volume 25 Issue 6

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地质勘探

SOURCE ROCK EVALUATION OF COAL-MEASURES STRATA IN KUQA DEPRESSION OF TARIM BASIN

SUN Jin-shan LIU Guo-hong SUN Ming-an WANG Zhao-xia

2003, 25(6):  1-4.  DOI: 10.3863/j.issn.1000-2634.2003.06.01

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According to the thermal decomposition achievement of mudstone, carbonaceous mudstone and coal samples, which are taken in the Jurassic coal-measure strata of Yang 1 well and Tougeerming outcrop in Kuqa depression, the organic matter abundance , type and maturation have been analysed with TOC,S1(the absorption hydrocarbon),S2( the hydrocarbon of kerogen decomposition) andIH(Hydrogen Index,S2/TOC).An absolute majority of samples have the features of high organic richness. The result of above analysis indicates that the Jurassic coal-measure strata of Kuqa depression is the coal -measure source rock of high hydrocarbon generating potential.


EVALUATION OF VOLCANIC ROCK RESERVOIR IN GU16TH AREA, KLAMY OIL-FIELD

HUO Jin CHEN Ke HUANG Wei-qiang LI Xing-rui SHAN Zhao-hui

2003, 25(6):  5-8.  DOI: 10.3863/j.issn.1000-2634.2003.06.02

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Based on the EMI data, geologic information and conventional logging data, the validity and permeability of the fractured reservoirs in the volcanic rocks of the area of Gu-16 wellare evaluated. The result shows: there are two primary reservoir interspaces, the fracture and the matrix dissolved pore in the volcanic rocks. The reservoir pattern mainly includes: the directly interconnected fractures type and the indirect interconnected pore-fractures type. The reservoir type includes: the low-pore-fracture type and the pore-fracture type. The matrix porosity is 2%-22% or so and the fractured porosity is 0.01%-0.08% in volcanic rock reservoir, so volcanic rock reservoir is low porosity and low permeability reservoir. It is distributed beneath less than 250 meters of unconformable face, which is on the middle and upper areas of volcanic rock.


DERIVING CAPILLARY PRESURE CURVES FROM NMR T2SPECTRA

QUE Hong-pei LEI Bian-jun

2003, 25(6):  9-11.  DOI: 10.3863/j.issn.1000-2634.2003.06.03

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NMR T2 distribution data obtained on reservoir real log are converted directly to capillary pressure curves. Firstly the T2 cut-off values were determined, and theT2spectra were divided into irreducible water spectra and moveable water spectra. Then the moveable water spectra were corrected for hydrocarbon effects to reconstruct moveable water spectra, which were then added to the irreducible water spectra to obtain the T2 spectra at SW=1. Using a converting coefficient κ, theT2 spectra atSW=1 were able to be converted directly to capillary pressure curve. The key of the method is the correction of hydrocarbon effects on the moveable water spectra and the determination of the optimum κ. We have demonstrated that for sandstone formations capillary pressure curves can be reliably derived from NMR data with an accuracy that is equivalent to standard log interpretation. This was verified through an extensive core study as well as using real log data. This allows obtaining a reliable saturation- height function also in oil(or gas) bearing depth intervals.


THE APPLICATION OF A NEW TYPE OF KEROGEN AUTOMATIC PREPARATION INSTRUMENT

LIN Feng Liao Xi-Ming LV Zhong-yu LI Yan-mei XU Zhi-ming WANG Lan-sheng MU Lu-wen ZHOU Guang-jia

2003, 25(6):  12-15.  DOI: 10.3863/j.issn.1000-2634.2003.06.04

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A new type of kerogen automatic preparation instrument can automatically operate the whole process of kerogen preparation .The instrument can process 8 samples per operation sothat the efficiency can be increased five times over the original ways. Meanwhile, the quality of the sample has reached the standard of SY/T5123-86 and SY/T5123-96.It has successfully solved the problems of such poisonous substances as hydro fluorite acid and hydrochloric acid in sampling so as to prevent environmental pollution and guarantee the health of the operator. The instrument possesses advantages of advanced design, easy operation, full function, stable performance and higher automation.


STUDY OF HEAT TREATMENT FOR FORMATION WATER BLOCK DAMAGE

YAN Rong-hui TANG Hong-ming LI Gao LU Shu-xiu

2003, 25(6):  16-18.  DOI: 10.3863/j.issn.1000-2634.2003.06.05

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The damage of water block is that capillary force existing in gas-liquid interface of formation pore passage obstructs the flow of oil and gas. Results studied in worldwide have shown that the water block affects seriously development effects and becomes one type of the major damages for low permeability gas reservoirs. It has resulted in serious consequences. Bench-scale heating tests have been carried out to water sensitive sandstone core to determine the effect of heat on effective permeability. Results indicate that heat treatment can improve the damage of water block. Experimental results show that the intense heat vaporizes bound and blocked water, destroys clay lattices, and ultimately increases the permeability of clay-rich formations, then removes or postpones water block damage.

石油工程

DISCUSSION ON CLASSIFICATION OF COALBED METHANE RESERVOIRS FOR DEVELOPMENTS

KANG Yi-li LUO Ping-ya

2003, 25(6):  19-22.  DOI: 10.3863/j.issn.1000-2634.2003.06.06

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Coalbed methane(CBM) reservoirs are characterized with specialties in pore structures, gas occurrences and production mechanisms different with conventional and other unconventional gas reservoirs. The classifications of CBM reservoirs in publishing are usually proposed for direction of exploration and evaluation of candidate areas. With the progress of economically developments of various types of CBM reservoirs in overseas, especially with the rapid increases in quantity and scale of pilot tests in china, it is of important significance to discuss the classifications of CBM reservoirs for developments which comprehensively considers particularities and common properties of different kinds of CBM reservoirs, as well as major factors related to development efficiencies. The classifications of CBM reservoirs for developments are presented in the light of thickness of coalbeds, permeability, gas saturation in matrix and water saturation in natural fractures. Case studies show that fundamental problems on CBM developments related to reservoirs with high and medium permeability have been solved. As the fact that there are some key theoretical and technological questions retarded CBM developments of low permeability and tight reservoirs, solving these questions are the main directions for R&D in the future.


THE DEVELOPMENT AND SIGNIFICANCE OF STUDY ON FLUID FLOWING IN THE DEFORMATION MEDIA GAS RESERVOIR

YANG Man-ping LI Zhi-ping WANG Zheng-mao PENG Cai-zhen HU Yong-le

2003, 25(6):  23-26.  DOI: 10.3863/j.issn.1000-2634.2003.06.07

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The theory of the fluid flowing at the deformed porous media gas reservoir is developing with the one of fluid flowing through porous media, and the production of deformation media gas reservoir is the one of fluid-solid coupling. In the early time, the main intention was to study the relation among pressure, porosity and permeability of reservoir. After the effective stress was introduced, the fluid flow model about liner elastic deformation was established, later, the fluid-solid coupling model about nonlinear elastic or plastic deformation. Now, the coupling model have been established considering the relation about fluid flow, stress and temperature. In China, the study of theory started very late and was based on the foreign theory . After 1990s, many scholars have begun to study the theory and gained many good results. And these results are very important to develop the gas reservoir in China at present. Certainly, the theory needs to be perfected continuously and be made a theory system for production.


STUDY ON CALCULATION OF WATER INFLOW RATE OF BOTTOM HOLE OF GAS WELL WITH WATER

WU Jian-fa GUO Jian-chun ZHAO Yin-zhou HU Yong-quan

2003, 25(6):  27-30.  DOI: 10.3863/j.issn.1000-2634.2003.06.08

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Study on Calculation of Water Inflow Rate of Bottom Hole of Gas Well With Water A new model for calculation of water inflow rate at bottom hole of gas producing wells is presented. The slippage effect of two phase and the transition mechanisms among different flow patterns are taken into consideration. The wellbore is divided into a number of segments whose pressure drop and space distribution of gas-liquid with time under unsteady-state flow conditions is calculated iteratively by using transient steady flow method. At last, the relationships of bottom-hole pressure and water inflow rate changing with time are established.


METHOD OF DETERMINING OPTIMUM WELL LOCATION FOR HORIZONTAL WELL IN BOTTOM-WATER RESERVOIR

CHEN Ming SHEN Yan-lai YANG Zhai

2003, 25(6):  31-34.  DOI: 10.3863/j.issn.1000-2634.2003.06.09

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Abstract Determining optimum well location for Horizontal well in bottom-water reservoir is the key to keep high and steady production and prolong producing time without water. Using mirror effect and superposition principle of potential function, this paper derives the potential function at arbitrary point in reservoir and acquires the potential difference in horizontal wellbore and production equation of the well. Then, the factors affecting production, critical production and water breakthrough time is studied and the optimum well location for horizontal well in bottom-water reservoir is acquired. It provides the theory base for reasonably developing bottom- water reservoir with horizontal well.


LARGE-SCALE RESERVOIR NUMERICAL SIMULATION USING PC-CLUSTERS IN DAQING OIL FIELD

ZHAO Guo-zhong YIN Zhi-lin WU Yong

2003, 25(6):  35-39.  DOI: 10.3863/j.issn.1000-2634.2003.06.10

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Potential tapping through oilfield development adjustment to improve water-flooding recovery in the late period of high water cut stage requires that the residual oil distribution for Daqing oil field should be quantitatively studied using large scale reservoir numerical simulation. Enlarged scale and highly expected efficiency need higher technical capability for reservoir numerical simulation. By using PC-Cluster technique developed in recent years, large-scale reservoir numerical simulation can be performed at a relatively low cost in Daqing oil field. Firstly, the first PC-Cluster used for reservoir numerical simulation is established in Daqing oil field, and based on this developing environment, the serial black oil simulator is paralleled. Then, this PC-Cluster parallel simulating technique is applied in seven oil production districts of Daqing oil field. The hardware and system software configuration of PC-Clusters established in Daqing oil field is briefly introduced, the idea and method for paralleling the serial applying results is described and presented.


油气化学工程与化工

EXPERIMENTAL STUDY OF FOAM BLOCKING ABILITY

WANG Qi-wei CAO Xu-long ZHOU Guo-hua GUO Ping LI Xiang-liang LI Xue-song

2003, 25(6):  40-42.  DOI: 10.3863/j.issn.1000-2634.2003.06.11

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In this paper, the blocking ability of several foam flooding systems have been studied, which is foam flooding after oil-bearing model water flooding, single-pure foam flooding after complex foam or polymer flooding, complex foam flooding. Result shows that the single-pure foam flooding cannot form effective block under the condition of residual oil saturation, while complex foam flooding system can form effective block under various residual oil saturation. It can be determined that the complex foam flooding system is an useful profile control agent.


STUDY ON OIL DISPLACEMENT MECHANISMS OF QUATERNARY CATIONICS

YAO Tong-yu LIU Fu-hai LIU Wei-dong

2003, 25(6):  43-45.  DOI: 10.3863/j.issn.1000-2634.2003.06.12

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Oil displacement mechanism of quaternary cationics has been studied in several ways: surface and interface tension, wettability, surface electrical behavior. It’s thought that there has been low interface tension mechanism, wetting conversion mechanism and surface electrical conversion mechanism while displaced by the surfactants. When the concentration of the surfactants is as high as 600 mg•L-1, the oil recovery increment of 5%-6% is available. It is expectable that cationic surfactants with adsorbance property probably have such mechanisms in oil displacement, and have some potentiality.


SYNTHESIS AND PERFORMANCE OF AN ORGANIC CHROME CROSSLINKING AGENT FOR DEEP PROFILE CONTROL

LI Yong-tai PENG Zhi-gang FENG Qian QIU Yong

2003, 25(6):  46-48.  DOI: 10.3863/j.issn.1000-2634.2003.06.13

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An organic chrome crosslinking agent of weak gel for deep profile control has been synthesized by using a monose compound as ligand based on its complexing constant of the complexing agent. Results indicate that the crosslinking system has the properties of convenient operation, easy injection and good performance. The contraction between the vertical and plane in formation has been solved effectively and the oil recovery has been enhanced.


STUDY ON MECHANISM OF WAXY CRUDE OIL STRUCTURE FORMATION

JING Jia-qiang YANG Li QIN Wen-ting LUO Ping-ya

2003, 25(6):  49-52.  DOI: 10.3863/j.issn.1000-2634.2003.06.14

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Based on the infrared spectra of paraffin and asphaltene, the microstructure of simulated waxy oils and crystallographic theories, mechanism of structure formation for waxy crude oils has been discussed. Results show that the mechanism is that of the formation of crystalline nucleuses, the growth of paraffin crystals and the interconnection of paraffin crystalline particles. The basic conditions include that macromolecules such as paraffin or asphaltene or resin form crystalline nucleuses, paraffin crystalline particles continuously form and grow as increase of the interactions between the paraffin molecules and crystalline nucleuses. The increase of the interactions among paraffin crystalline particles leads the particles to contact each other and bridge to form the structure. To understand fully the mechanism of structure formation of waxy crude oils is very helpful to investigate that of their pour point depression and viscosity reduction, and the improving technology of their flow-ability at lower temperature.

TREATMENT OF FRACTURING FLUID WASTE WATER BY Fe/C MICRO-ELECTROLYSIS PROCESS

WAN Li-ping ZHAO Li-zhi MENG Ying-feng

2003, 25(6):  53-55.  DOI: 10.3863/j.issn.1000-2634.2003.06.15

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This is the first time that fracturing fluid waste water after coagulation has been treated by Fe/C micro-electrolysis process, and four factors, namely pH value, detention time, Fe/Cvolumetric ratio, grain size of scrap iron, dose of ammonium chloride (NH4CI) have been studied. By calculation, the consume of the scrap iron has been determined. Results show that removal rate of color is nearly 100%, removal rate of Chemical Oxygen Demand (COD) arrives at 58%, the consume of the scrap iron is 0.28 kg/m3, while pHvalue is 2, detention time is 25 minutes, Fe/C volumetric ratio is 1-1.5, iron grain is 6080 mesh, adding content of NH4CI is 1 000 mg/L.


石油机械工程及其它

XP—AN AGILE METHOD SUITABLE FOR MIDDLE-OR-SMALL SCALE SOFTWARE SYSTEM

FENG Shan;CHEN Shi-ping;ZENG Zhen-bing ZHU Da-yong XU Feng

2003, 25(6):  56-60.  DOI: 10.3863/j.issn.1000-2634.2003.06.16

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The goal of software engineering (SE) is aimed at solving the development and anagement problems of large-scale software projects in its early phases to make the cow-boy-style programming processes into engineering ones with rules and operational criteria. However, because of the inherence drawbacks of traditional software engineering (TSE) models, the increasing rules and operational criterions, it is not met to the really needs of the middle-or-small scale projects’ developing process. Based on our experiences accumulated during about 14 years period and combined with SDBC-MIS practice, the new method called XP (extreme Programming) is discussed in its features, software processes practical rules and applied domain scope. The differences between TSE and XP are contrasted systemically. According to this parallel research, XP is more suitable than TSE when applied to middle-or-small scale systems.


WORKING PRINCIPLE AND KINEMATICS ANALYSIS OF 7NB MUD BUMP

JIN Xun LIU Qing-you HE Xia

2003, 25(6):  61-62.  DOI: 10.3863/j.issn.1000-2634.2003.06.17

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Oil and nature gas exploration and development is going on in the regions in the adverse circumstances and the geological complex condition. For this reason, the mud pump is asked to reduce the weight and volume, to improve its structure and to raise the efficiency to adapt to various adverse circumstances and conditions. In this paper, the 7NB mud pump, a new mud pump, was described. Moving equations and computation models of the 7NB were established on the basis of studying its structure and working principal. The kinematics of the new mud pump was analyzed. It provided the theoretical supports for the improving structure of the mud pump.


HIGH SPEED JOURNAL SEAL OF CONE BIT DESIGN AND FINITE ELEMENT METHOD ANALYZE

YANG Qi-ming CHEN Yong-jun

2003, 25(6):  63-65.  DOI: 10.3863/j.issn.1000-2634.2003.06.18

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The life span of cone bits is almost directly decided by the life of bit journals, which depends in great degree on the life of their seals. To enhance the reliability of journal seal of cone bit, this paper presented the face-radial combination sealing structure, that is to say, end-face and radial seal was arranged in one bit simultaneously. The design of sealing structures were analyzed and optimized with the nonlinear finite element methods, and the new seal mate was designed. Theoretically and practically, it provided that the new seal combination structure can adapt to the developing trend of high speed cone bit in lubricating system of journal seal.


CONTACT STRESS ANALYSIS ON THE BEARING OF SINGLE-CONE BITS

DENG Rong MA Hong-wei

2003, 25(6):  66-68.  DOI: 10.3863/j.issn.1000-2634.2003.06.19

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The contact stress of the bearing of single-cone bit were studied and analyzed with the software Pro/M and the method FEM. The bearing stress distribution, the relations between axial load and radial load, the relations between the structure parameter of the bit, WOB and contact stress, as well as the contact area were discussed in detail. The distributing curve of the contact stress on the bearing was obtained, some suggestions to design the bearing of the bit was presented.


FINITE ELEMENT ANALYSIS OF STRUCTURE STRENGTH FOR XRZS-Z SHALE SHAKER

HOU Yong-jun YANG Jian-zhong LI Guo-zhong YANG Ji-jun ZHANG Ming-hong

2003, 25(6):  69-71.  DOI: 10.3863/j.issn.1000-2634.2003.06.20

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To determine the stress distribution of XRZS-Z Shale Shaker, and ensure the strength of the shaker body, the Finite Element model for strength calculating of the shaker body was established with the Mechanical mode of Pro/E. The analyzing results indicated that the stress of shaker body is periodical varying stress, the stress concentration mainly was at the joint between two shells of electric motor seat, and between the Lbeam and side shell of shaker body, and the strength of every part of the shaker body is enough.



TESTING STUDY OF THE GAS SEAL ABOUT GAS PRODUCTION WELLHEAD

ZHANG Bin

2003, 25(6):  72-74.  DOI: 10.3863/j.issn.1000-2634.2003.06.21

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The gas production wellhead equipment is the key equipment of oil and natural gas field development. It is a direct bearing on the safety & environmental protection and protection for resource of oil and natural gas field to test the performance of the gas seal, to inspect and control its quality. This paper summarized the hydrostatic pressure seal test and gas seal pressure test to the wellhead, the paper focused on the discussion of the issues, such as how to set up high-pressure gas test device, how to perform hydrostatic test and high-pressure gas test and how to improve gas sealing performance of high-pressure wellborn equipment in combination with the situation of development of super high-pressure gas test devices.


FINITE ELEMENT ANALYSIS OF COMBINED I-SHAPED BEAMS UNDER ECCENTRIC LOAD

DONG Shi-er LIAN Zhang-hua DENG Xi-sheng

2003, 25(6):  75-77.  DOI: 10.3863/j.issn.1000-2634.2003.06.22

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In this paper, when the beam was applied with eccentric force, the finite element analysis technique was used to calculate the maximum stress peak in the combined beams section. For the combined beams of the steel structure engineering while the beams are mounted and are not mounted web stiffener, and the results were that the stress peak in web stiffener of the beams section can be reduced remarkable, finally, it provided the detail items for the designing of beams.

CAD/CAPP SYSTEM DESIGN OF SWITCHING JOINT BASED ON Pro/E

XIAO Xiao-hua ZHANG Mao CHEN Bo WANG Wei-dang

2003, 25(6):  78-80.  DOI: 10.3863/j.issn.1000-2634.2003.06.23

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Switching joint (SJ) of drill-string is a sort of standard component, but many types for the different usages. The structural database was created according to the features of SJ, and CAD/CAPP System software Design of SJ was developed with VB as programming tool, Pro/E and AutoCAD as developing platform. The software with Pro/PROGRAM can carry out parameterization design of SJ to automatically create 3-D solid, 2-D drawing, processing procedure cards and processing sequence cards of SJ.


APPLICATION RESEARCH OF THE GERBER PARABOLA FOR THE FATIGUE RELIABILITY DESIGN

GUO Wei-qiang PU Ru-ping ZHAO Wu-yun

2003, 25(6):  81-83.  DOI: 10.3863/j.issn.1000-2634.2003.06.24

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Five kinds of fatigue limits stress (σm-σa) diagrams were introduced in this paper, and application characteristics of Good man diagram, Simplified fatigue limit fold curve diagram, Soderberg line diagram ,Биргерparabolaand Gerber parabola curves were analyzed. The calculating values of the standard difference of fatigue limit in reliability intensity of Gerber’s parabola were in good agreed with the testing data. The advantages of the fold curve equations were analyzed in detail, it provided the theoretical supports for the reliability design.


APPLICATION RESEARCH FOR PROLONGING LIFE OF AERO-BEARING WITH ION IMPLANTATION

CHEN Jin

2003, 25(6):  84-86.  DOI: 10.3863/j.issn.1000-2634.2003.06.25

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Generally, the service life of aero-bearing is short generally. Through a number of statistical data analysis and further research to the failure gearing, the main problem in the usage of aero-bearing was corrosion and wear. Through various test, it indicated clearly the ion implantation into the test material of aero-bearing and the non-crystal materials appeared on the surface of test material. The feature of anti-corrosion and the feature of anti-wear were 2 times than that before. Meanwhile, Developed ionic beam machine with multiple functions for the ion implantation into the material of aero- bearing solved the problem of non-uniformity implantation on spherical surface. Aero-bearing with ion implantation has been applied in the aero-engine field widely. It not only smoothly succeeded in the engine test on a test bed and gas turbine test on the ground but also all of aero-bearing delivered to China Air force being has a remarkable improvement in the work up to now.

RESEARCH ON LARGE HYDRODYNAMIC JOURNAL BEARINGSAT THE LOW SPEED AND HEAVY DUTY CONDITION

ZHONG Hai-quan

2003, 25(6):  87-89.  DOI: 10.3863/j.issn.1000-2634.2003.06.26

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For developing large type of journal bearings of tubular hydro-generator set, the simulating test of the diameter 1740 mm tilting pad bearings with the diameter 360 mm model bearings were preceded. The maximum testing average pressure is 3.37 MPa. The minimum journal velocity is 3.77 m/s. The maximum journal velocity is 22.62 m/s. Experiment indicated that load and inlet oil pressure and speed and inlet oil temperature and preload factor influenced oil temperature rise and oil flow and dissipation and pad temperature and oil-film thickness at different degree. Among them, the influence of load and speed was remarkable. The journal bearings of the diameter 1740 mm are working dependably at HongYanzi water power plant. At the same time, the software for computing the thermo-elastic-hydrodynamic (TEHD) lubrication performance of journal bearings was developed to estimate oil-film pressure and oil-film temperature and oil-film thickness and dissipation and oil flow etc.


ANALYSIS OF THE STRESS OF LONGITUDINAL CORROSIVE FLAW ON OIL-PIPE WALL

TAO Chun-da MENG Kun-liu YANG Ji-jun

2003, 25(6):  90-92.  DOI: 10.3863/j.issn.1000-2634.2003.06.27

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Flaws on the long distance oil-pipe are one of the invisible big problems which will result in abnormal work. With the finite element method, the longitudinal flaws on pipe wall were analyzed in this paper, the distribution rule of stress at the flaw was obtained, and the influence of the length, width and thickness of the wall on the stress was analyzed. The results can be used to the design and safety management of the pipe.


ESTABLISHMENT AND APPLICATION OF A MODEL FOR PREDICTING FLUID FLOWING TEMPERATURE DISTRIBUTION IN THE MULTIPHASE FLOW PIPELINE

LIU Wu CHEN Cai-ling WU Xiao Hong SHI Xin CAO Xue-bo

2003, 25(6):  93-95.  DOI: 10.3863/j.issn.1000-2634.2003.06.28

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According to the energy conservation law of oil-gas two-phase flow, a general and unified model for predicting fluid flowing temperature distribution in the hybrid transmission pipeline was derived, which considered the effects of joule-thomson coefficient, liquid friction, fluctuating terrain and velocities of gas and liquid. Four simplified models were presented in the paper, and their validity was verified with two field cases for the technological calculation in the oil-gas two-phase pipeline. Through a comparison calculation with actual fluid temperature of pipeline’s end, the main factors which effected the distribution of temperature drop along the multiphase pipeline are heat transfer coefficient, joule-thomson coefficient and liquid friction. However, undulating terrain and velocities of gas and liquid can be ignored for the calculation of temperature drop.


GAS STORAGE TECHNOLOGY OF NATURAL GAS VEHICLE

WANG Zheng-mao LIANG Zheng YANG Zhi ZHONG Gong-xiang SHU Yun-de

2003, 25(6):  96-98.  DOI: 10.3863/j.issn.1000-2634.2003.06.29

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As the substitute fuel of vehicles, natural gas has many advantages, such as the abundant reserves, low prices, high octane number, great combustibility, low sulphur, low nitrogen,no ash, little environmental pollution and so on. But, now, compressed natural gas storage technology has some shortcomings such as high gas storage pressure, low gas storage capacity, short running mileage and so on. Therefore, it is necessary to research the gas storage technology of natural gas vehicle. This paper mainly studied five kinds of gas storage technology of natural gas vehicle and pointed out that adsorption and near critical fluid store natural gas technology will possess the promising application future in the natural gas vehicle field.