本文選題：采出液藥劑濃度 + 乳化作用　； 參考：《東北石油大學(xué)》2015年碩士論文

【摘要】：本文以喇嘛甸油田(采油六廠)、薩爾圖油田(采油一廠)和杏樹崗油田(采油四廠)儲(chǔ)層地質(zhì)和流體為研究對(duì)象,開展了三元復(fù)合體系與三典型區(qū)塊原油乳化作用后藥劑在油水相中分配比例及其影響因素、三元復(fù)合驅(qū)采出液變化規(guī)律以及原油性質(zhì)差異對(duì)三元復(fù)合體系與原油乳化作用后藥劑分配的影響等實(shí)驗(yàn)研究。結(jié)果表明,與薩爾圖油田和杏樹崗油田儲(chǔ)層狀況、藥劑濃度和段塞組成相比,喇嘛甸油田儲(chǔ)層注采井連通狀況較差、注入聚合物相對(duì)分子質(zhì)量和濃度較高,加之原油性質(zhì)差異,造成其采出液中表面活性劑和堿濃度較低。與薩爾圖和杏樹崗油田原油相比較,喇嘛甸油田原油黏度、含蠟量和含膠量較高且酸性活性組分種類和數(shù)量較多,強(qiáng)堿在油相中損耗量較多,喇嘛甸原油中重質(zhì)組分含量較高且碳鏈分布范圍較廣,重烷基苯磺酸鹽類表面活性劑在原油中損耗量較大。三元復(fù)合體系與原油乳化作用后,部分表面活性劑和堿會(huì)進(jìn)入到了油相中去,聚合物難以溶入油相。表面活性劑主要以物理混合方式進(jìn)入到油相,可以返回到水相中來。堿主要是與原油中有機(jī)酸等組分發(fā)生化學(xué)反應(yīng)而損失,是不可逆過程。聚合物可以抑制表面活性劑和堿與原油間的作用,減少損耗量。巖心實(shí)驗(yàn)表明,與單一整體段塞相比較,多段塞注入方式采出液中聚合物、表面活性劑和堿濃度減小,界面張力較高,采出液黏度降低。與聚合物相比較,表面活性劑和堿在巖心中不可及孔隙體積較小,波及體積較大,滯留量較大,突破時(shí)間較晚,三種化學(xué)劑間出現(xiàn)色譜分離現(xiàn)象。
[Abstract]:In this paper, the reservoir geology and fluid in Lamadian Oilfield (No. 6 Oil recovery Plant), Saltu Oilfield (No. 1 Oil recovery Plant) and Xingshugang Oilfield (No. 4 Oil recovery Plant) are taken as research objects.After emulsification of crude oil in three typical blocks, the distribution ratio of the agent in oil-water phase and its influencing factors were carried out.Experimental study on the variation law of produced liquid in ASP flooding and the effect of crude oil property difference on the distribution of medicament after emulsification between ASP system and crude oil was carried out.The results show that, compared with Saltu and Xingshugang oil fields, the injection-production well connectivity of Lamadian oilfield is poor, the relative molecular weight and concentration of injected polymer are higher, and the crude oil properties are different.As a result, the concentration of surfactant and alkali in the extracted solution is low.Compared with Saltu and Xingshugang oil fields, Lamadian oil field has higher viscosity, wax content and colloid content, more kinds and quantities of acidic active components, and more loss of strong alkali in oil phase.Lamadian crude oil has a high content of heavy components and a wide range of carbon chain distribution. Heavy alkylbenzene sulfonate surfactants have a large loss in crude oil.After the emulsification of crude oil, some surfactants and alkaloids enter into the oil phase, and the polymer is difficult to dissolve into the oil phase.Surfactants are mainly physically mixed into the oil phase and can be returned to the water phase.Alkali is mainly lost by chemical reaction with organic acids and other components in crude oil. It is an irreversible process.Polymer can inhibit the interaction between surfactant and alkali and crude oil and reduce the loss.The core experiments show that the polymer, surfactant and alkali concentration in the liquid produced by multi-slug injection are decreased, the interfacial tension is higher, and the viscosity of the produced liquid is decreased compared with the single integral slug.Compared with polymer, surfactant and alkali have smaller volume of unreachable pores, larger sweep volume, larger retention, later breakthrough time, and chromatographic separation between the three chemicals.
【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)】：TE357.46

【參考文獻(xiàn)】

相關(guān)期刊論文 前1條

1 羅瀾,趙濉,張路,羅永臣,俞稼鏞,劉加林;遼河原油活性組分的分離、分析及界面活性[J];油田化學(xué);2000年02期

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本文編號(hào)：1739520