發(fā)布時(shí)間：2018-05-31 14:25

  本文選題：天然氣 + 儲(chǔ)氣庫(kù)��； 參考：《東北石油大學(xué)》2015年碩士論文

【摘要】：地下儲(chǔ)氣庫(kù)作為天然氣輸氣管網(wǎng)系統(tǒng)調(diào)峰設(shè)施,同時(shí)也是一種事故應(yīng)急和戰(zhàn)略儲(chǔ)備的手段。儲(chǔ)氣庫(kù)作為天然氣儲(chǔ)運(yùn)系統(tǒng)的重要配套設(shè)施,建設(shè)技術(shù)要求較高,其選址目前比較普遍的是利用地下蓋層發(fā)育完整的地層作為儲(chǔ)集層,也有少數(shù)利用人工洞穴的作為儲(chǔ)集腔。在用氣量少的季節(jié),從氣井注人到地下儲(chǔ)集層或人工洞穴中儲(chǔ)存起來(lái),在用氣量大,管道系統(tǒng)供氣能力不足或突發(fā)事故時(shí),再?gòu)臍饩虚_采出來(lái),經(jīng)過(guò)凈化,返輸至管道系統(tǒng),滿足管道系統(tǒng)在特殊情況下增大供氣能力需求。地下儲(chǔ)氣庫(kù)選址大多是利用已有的枯竭油氣藏、含水層或鹽穴等地質(zhì)蓋層完善的地層改建而成,其中利用枯竭油氣藏改建地下儲(chǔ)氣庫(kù)因地層情況比較明確,具有技術(shù)成熟、投資小、建設(shè)期短的優(yōu)點(diǎn),世界上有近80%的儲(chǔ)氣庫(kù)應(yīng)用這種建庫(kù)模式。本文根據(jù)雙6區(qū)塊儲(chǔ)層地質(zhì)特點(diǎn),結(jié)合油氣藏開發(fā)規(guī)律,按照雙6儲(chǔ)氣庫(kù)調(diào)峰能力建設(shè)要求,通過(guò)合理設(shè)計(jì)注采井井眼軌跡、井身結(jié)構(gòu)、完井工藝方案、優(yōu)化射孔工藝參數(shù)、優(yōu)化注采管柱、井下工具等,對(duì)注采管柱受力分析及強(qiáng)度校核,對(duì)產(chǎn)能、臨界攜液、沖蝕影響和井筒條件等影響因素綜合分析,滿足強(qiáng)注強(qiáng)采的工況要求,同時(shí)對(duì)后期生產(chǎn)可能出現(xiàn)的風(fēng)險(xiǎn)進(jìn)行了分析,制定了解決預(yù)案,為下一步儲(chǔ)氣庫(kù)投產(chǎn)運(yùn)行奠定了基礎(chǔ)。該設(shè)計(jì)已成功應(yīng)用于雙6儲(chǔ)氣庫(kù)鉆采工程施工,得到了較好的驗(yàn)證,其研究成果對(duì)于我國(guó)今后枯竭油氣藏改建地下儲(chǔ)氣庫(kù),鉆采工程設(shè)計(jì)、施工、分析評(píng)價(jià)等方面具有一定的借鑒意義。
[Abstract]:As a peak-shaving facility of natural gas transmission pipeline system, underground gas storage is also a means of accident emergency and strategic reserve. As an important supporting facility of natural gas storage and transportation system, gas storage has high technical requirements. At present, it is common to use the intact stratum developed by underground caprock as reservoir, and a few artificial caverns are used as reservoir cavity. In the season when the amount of gas used is low, it is stored in underground reservoirs or artificial caves from gas well injectors. In the case of large gas consumption, insufficient gas supply capacity of the pipeline system or sudden accidents, it is then extracted from the gas well, purified and transported back to the pipeline system. To meet the pipeline system under special circumstances to increase the capacity of gas supply requirements. The location of underground gas storage is mostly formed by reconstruction of existing depleted reservoirs, aquifers or salt caprocks, etc. Among them, the reconstruction of underground gas storage by using depleted oil and gas reservoirs is technically mature because of the clear stratigraphic conditions. The investment is small and the construction period is short. Nearly 80% of the world's gas storage uses this model. According to the reservoir geological characteristics of Shuang 6 block, combined with the development law of oil and gas reservoir, according to the requirements of peak shaving ability construction of Shuang 6 gas storage reservoir, this paper optimizes perforation parameters by reasonably designing wellbore trajectory, wellbore structure and completion process scheme. Optimization of injection-production string, downhole tools and so on, force analysis and strength check of injection-production string, comprehensive analysis of influencing factors such as productivity, critical liquid carrying, erosion effect and wellbore condition, etc., to meet the requirements of strong injection and strong production conditions. At the same time, the possible risks in the later production are analyzed, and the preliminary plan is worked out, which lays the foundation for the production and operation of the gas storage reservoir in the next step. The design has been successfully applied to the drilling and production engineering of Shuang6 gas storage depot, and has been well verified. The research results can be used to reconstruct underground gas storage, design and construction of drilling and production engineering for depleted oil and gas reservoirs in China in the future. The analysis and evaluation have certain reference significance.
【學(xué)位授予單位】：東北石油大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TE822

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本文編號(hào)：1960075