Research On Theoretical Framework And Model System Of Industrial Ecology For Oil And Gas

While the oil and gas industry can bring economic development and social progress,a series of environmental problems caused by the production process are also increasing.Therefore,the ecological development of the oil and gas industry has become the focus of attention.In order to conduct targeted research on the ecological development of oil and gas industry,this paper expands the industrial ecology theory and proposes that the essential connotation of industrial ecology of oil and gas is recycling and reuse of industrial residues.Thus,the key elements,research scope and development process of the oil and gas industry ecology are defined.Based on this,an ecological model system of oil and gas industry is constructed,including a micro-level self-cycle model for individual elements in oil and gas industry,a meso-level cooperative game model for symbiotic unit in oil and gas industry,and a macro-level evolution and regulation model for industry ecological network in oil and gas industry.Based on the individual elements of the oil and gas industry as the research object,the self-cycle model for individual elements in oil and gas industry is constructed.By optimizing the life cycle assessment method and increasing the screening link of selfcycle industrial residues in individual elements and the evaluation link of self-recycling efficiency,the quantitative research on the micro-level of the oil and gas industry is realized.On this basis,this paper collects relevant data of Shanxi HG Liquefaction Plant for example analysis.Through analysis,it is concluded that if the plant achieves selfrecycling,within 20 years of commissioning,the energy saving of CH4 is about 12.66%of the annual LNG production,and the self-cycle efficiency of the total environmental impact is only 15.90%.Therefore,the recycling of industrial residues outside the individual elements should be considered.Based on the symbiotic unit of oil and gas industry as the research object,the cooperative game model for symbiotic unit in oil and gas industry is constructed.In order to maximize the total social economic benefits,the game theory is used to study the cooperative relationship between the individual elements of upstream and downstream of industrial residue exchange from the two dimensions of "governance subject" and "driving mode".The paper realizes the quantitative research on the meso level of the oil and gas industry,and proposes a pricing scheme with the goal of maximizing the total social economic benefits.In the case of given parameters,according to the model,the formation pattern of upstream and downstream individual elements for industrial residue governance can be selected,and the probability of industrial symbiosis between upstream and downstream individual elements can be obtained.Finally,the model is simulated.The cooperative game model for symbiosis unit in the oil and gas industry can provide theoretical support for the formulation of relevant government policies and corporate decisions.Based on the ecological network of the oil and gas industry as the research object,the evolution and regulation model for ecological network in oil and gas industry is constructed.First,based on the multi-objective programming method,with the objective of minimizing the environmental burden and maximizing the economic benefits,an ecological network evolution model for the oil and gas industry is constructed,and individual elements participating in the network formation are selected.Second,based on the transportation model,with the goal of minimizing transportation costs,an ecological network regulation model for the oil and gas industry is constructed,and an industrial residue exchange scheme between individual elements is formulated.Finally,taking 10 industrial residues among 8 individual elements in the oil and gas industry as an example,the model simulation is carried out,and an industrial network of oil and gas industry in this case is drawn by formulating an exchange scheme of industrial residues among the individual elements.In summary,this paper believes that the essence of the ecological development for oil and gas industry is to realize the recycling and reuse of industrial residues in oil and gas industry.By expanding the industrial ecological theory and providing targeted theoretical guidance to the oil and gas industry,it is beneficial to promote the ecological development of the oil and gas industry.The ecological model system of oil and gas industry provides a quantitative method for the recycling of industrial residues.