本文選題：氣井積液 + 排水采氣��； 參考：《西南石油大學(xué)》2015年碩士論文

【摘要】：隨著氣井生產(chǎn)的進(jìn)行,井底積液問題逐漸凸顯,能否及時排液成為保障氣井正常生產(chǎn)的關(guān)鍵所在。然而,傳統(tǒng)的排水采氣工藝越來越不能滿足復(fù)雜多變的生產(chǎn)實際,研究推廣新型高效排水采氣工藝越來越迫切。而在排液采氣工藝中,渦流排水采氣工藝是近年來興起的一項新技術(shù)。國內(nèi)外許多成功經(jīng)驗表明渦流工具具有良好的攜液能力,能顯著提升積液氣井的采收率。 然而,2013年川西氣田引進(jìn)了渦流排水采氣工藝并進(jìn)行了先導(dǎo)試驗表明,其排水采氣效果卻并不理想,遠(yuǎn)遠(yuǎn)沒有達(dá)到文獻(xiàn)中的效果。分析可能的原因主要在于國內(nèi)外人們對渦流工具的適用條件認(rèn)識不夠明確,過于經(jīng)驗化,導(dǎo)致選井不合適,同時工具結(jié)構(gòu)參數(shù)并不合理,有待優(yōu)化。 本文在充分調(diào)研渦流工藝排水采氣相關(guān)文獻(xiàn)的基礎(chǔ)上,詳細(xì)分析了渦流工具排水采氣的工作原理、結(jié)構(gòu)特征、作業(yè)方式和理論計算基礎(chǔ),通過使用Catia、Gambit和Fluent等3款商業(yè)軟件進(jìn)行物理建模和數(shù)值模擬,進(jìn)行了結(jié)構(gòu)優(yōu)化并制作出工具樣件,采用室內(nèi)實驗驗證與數(shù)值模擬相結(jié)合的方式,深入研究氣井產(chǎn)能特征、井身結(jié)構(gòu)和工具參數(shù)對渦流工具排采效果的影響情況,以優(yōu)化工具結(jié)構(gòu),并結(jié)合川西氣田的實際情況,提出了合理的、明確的選井建議和適用條件,為國內(nèi)產(chǎn)水氣田排水采氣工藝的篩選和渦流排水采氣工藝的推廣應(yīng)用提供借鑒與參考。
[Abstract]:With the development of gas well production, the problem of bottom hole fluid accumulation is becoming more and more prominent, and the key to ensure gas well normal production is to discharge liquid in time. However, the traditional drainage gas production technology can not satisfy the complicated and changeable production practice more and more, so it is more and more urgent to study and popularize the new high efficiency drainage gas production technology. In the process of discharging liquid and gas, eddy current drainage gas recovery is a new technology developed in recent years. Many successful experiences at home and abroad show that the eddy current tool has a good liquid carrying capacity and can significantly improve the recovery factor of the gas well. However, in 2013, the eddy current drainage gas recovery technology was introduced into the western Sichuan gas field and the pilot test showed that the drainage and gas recovery effect was not ideal and far from the effect in the literature. The main reason for the analysis is that people at home and abroad do not have clear understanding of the applicable conditions of eddy current tools, which leads to improper selection of wells and unreasonable structural parameters of tools, which need to be optimized. In this paper, based on the investigation and investigation of the relevant literature on drainage and gas production of eddy current process, the working principle, structure characteristics, operation mode and theoretical calculation basis of drainage and gas production with eddy current tools are analyzed in detail. Through the physical modeling and numerical simulation of three commercial software such as Catia Gambit and fluent, the paper optimizes the structure and makes a tool sample. The productivity characteristics of gas wells are deeply studied by the combination of laboratory experiment verification and numerical simulation. The influence of wellbore structure and tool parameters on the effect of eddy current tool drainage and production, in order to optimize the tool structure, and combined with the actual situation of western Sichuan gas field, the reasonable and definite well selection suggestions and applicable conditions are put forward. It provides reference and reference for the selection of drainage gas production process and the popularization and application of eddy current drainage gas recovery technology in domestic water producing gas fields.
【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】：2015
【分類號】：TE377

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本文編號：2094703