本文選題：低滲透氣田　切入點(diǎn)：經(jīng)濟(jì)臨界產(chǎn)量　出處：《西南石油大學(xué)》2014年碩士論文

【摘要】：‘近年來,我國已探明天然氣儲量中低滲透氣藏高達(dá)90%,且所占比例呈逐年上漲趨勢�；谶@種原因,把勘探開發(fā)目標(biāo)瞄準(zhǔn)在低滲透氣田已勢在必行。對于天然氣開發(fā)企業(yè)來說,天然氣產(chǎn)量越高,并非意味著經(jīng)濟(jì)效益就越好,如果天然氣產(chǎn)量的增長是以投資和成本的大幅度增加為代價(jià),勢必會造成天然氣單位利潤的下降甚至虧損。因此,為更加經(jīng)濟(jì)、有效地對低滲透氣田進(jìn)行開發(fā),滿足天然氣開發(fā)企業(yè)的目標(biāo)收益,同時提高企業(yè)的開發(fā)質(zhì)量和管理水平,對低滲透氣田開發(fā)經(jīng)濟(jì)臨界產(chǎn)量進(jìn)行深入研究是至關(guān)重要的。 本研究通過分析低滲透氣田不同開發(fā)時期的開發(fā)特點(diǎn)及氣田開發(fā)投資成本、天然氣產(chǎn)量的構(gòu)成及變化,結(jié)合天然氣開發(fā)企業(yè)實(shí)際經(jīng)營情況,引入了產(chǎn)能計(jì)算系數(shù)、產(chǎn)能建設(shè)臨界值等經(jīng)濟(jì)指標(biāo),運(yùn)用凈現(xiàn)值法、邊際分析法、動態(tài)盈虧平衡分析法等原理,分別建立了低滲透氣田開發(fā)初期、開發(fā)中期、開發(fā)中后期及開發(fā)后期四個階段的天然氣經(jīng)濟(jì)臨界產(chǎn)量計(jì)算模型并將其應(yīng)用到N氣田的實(shí)際生產(chǎn)開發(fā)中。各階段模型充分考慮了天然氣價(jià)格、天然氣產(chǎn)量、操作成本、投資金額、營業(yè)稅金及附加、商品率等經(jīng)濟(jì)指標(biāo),計(jì)算結(jié)果貼近低滲透氣田的生產(chǎn)開發(fā)實(shí)際。各階段經(jīng)濟(jì)臨界產(chǎn)量計(jì)算模型不僅能計(jì)算氣田不同開發(fā)時期的天然氣經(jīng)濟(jì)臨界產(chǎn)量,還可分析經(jīng)濟(jì)臨界產(chǎn)量對天然氣價(jià)格、基準(zhǔn)收益率、操作成本等經(jīng)濟(jì)參數(shù)的敏感性。深入研究低滲透氣田對實(shí)現(xiàn)天然氣開發(fā)企業(yè)利潤最大化,降低生產(chǎn)投資成本,加強(qiáng)氣藏經(jīng)營管理,提高天然氣開發(fā)企業(yè)組織生產(chǎn)和投資決策能力具有重要的指導(dǎo)性意義。
[Abstract]:In recent years, 90 gas reservoirs have been proved in China, and the proportion is increasing year by year.For this reason, it is imperative to target exploration and development in low permeability gas fields.For natural gas producers, the higher the natural gas production, the better the economic benefits. If the increase in natural gas production comes at the expense of a large increase in investment and cost,Will inevitably cause the natural gas unit profit drop or even the loss.Therefore, in order to develop low permeability gas fields more economically and effectively, to meet the target income of natural gas development enterprises, and at the same time to improve the development quality and management level of the enterprises,It is very important to study the economic critical production of low permeability gas fields.Through analyzing the development characteristics of low permeability gas fields in different development periods, the investment cost of gas field development, the composition and changes of natural gas production, and combining with the actual operation situation of natural gas development enterprises, the productivity calculation coefficient is introduced.By using the principles of net present value method, marginal analysis method and dynamic break-even analysis method, respectively, the initial and middle stages of development of low permeability gas fields are established.The calculation model of economic critical production of natural gas in the middle and late stages of development is applied to the actual production and development of N gas field.Each stage model fully considers the economic indexes such as natural gas price, natural gas output, operation cost, investment amount, operating tax and additional tax, commodity rate, etc. The calculation results are close to the production and development practice of low permeability gas field.The model can not only calculate the economic critical production of natural gas in different development periods of gas field, but also analyze the sensitivity of economic critical production to the economic parameters such as natural gas price, benchmark rate of return, operating cost and so on.The deep study of low permeability gas fields is of great significance in realizing the profit maximization of natural gas development enterprises, reducing production investment cost, strengthening gas reservoir management and improving the ability of natural gas development enterprises to organize production and make investment decisions.
【學(xué)位授予單位】：西南石油大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：F426.22;TE328

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