本文選題：稠油 + 蒸汽吞吐　； 參考：《東北石油大學(xué)》2016年碩士論文

【摘要】：哈薩克斯坦S區(qū)塊K油田稠油油藏所處區(qū)域?qū)儆诎肷衬颓鹆昶皆?鹽堿地廣泛發(fā)育,在常規(guī)的冷采開(kāi)發(fā)過(guò)程中主要存在四大問(wèn)題:油藏埋深淺,生產(chǎn)壓差小,影響油井產(chǎn)量和增產(chǎn)效果;油稠流動(dòng)性差,產(chǎn)能較低;構(gòu)造平緩,邊底水錐進(jìn)嚴(yán)重,產(chǎn)量遞減快;地層疏松,油層出砂嚴(yán)重,低溫下形成砂泥有機(jī)質(zhì)混合垢,造成油井產(chǎn)能急劇下降。為了改善該稠油油藏的開(kāi)發(fā)效果,針對(duì)開(kāi)發(fā)過(guò)程中存在的難題,調(diào)研了國(guó)內(nèi)外蒸汽吞吐開(kāi)采技術(shù)的研究現(xiàn)狀,對(duì)哈薩克斯坦S區(qū)塊K油田稠油油藏進(jìn)行地質(zhì)特征綜合研究,選取自然開(kāi)采、水驅(qū)及蒸汽吞吐開(kāi)采方式進(jìn)行論證,在哈薩克斯坦S區(qū)塊K油田稠油油藏進(jìn)行蒸汽吞吐開(kāi)采技術(shù)可行性研究。通過(guò)油藏?cái)?shù)值模擬等手段,對(duì)井型、井網(wǎng)與井距大小進(jìn)行優(yōu)化,并對(duì)影響蒸汽吞吐效果的注汽速度、蒸汽干度、注汽量、燜井時(shí)間進(jìn)行參數(shù)優(yōu)化;針對(duì)傳統(tǒng)防砂方式的不足,進(jìn)行完井防砂工藝優(yōu)化研究,同時(shí)優(yōu)化采油工藝,最終提出方案優(yōu)化設(shè)計(jì),并應(yīng)用于哈薩克斯坦S區(qū)塊K油田,取得了良好的開(kāi)發(fā)效果。22口試驗(yàn)油井全部采用蒸汽吞吐投產(chǎn),投產(chǎn)后日產(chǎn)油量最高達(dá)到12.4t,平均產(chǎn)油量是注汽前產(chǎn)油量的3倍,增產(chǎn)效果明顯,累計(jì)增油17292t�，F(xiàn)場(chǎng)應(yīng)用效果表明,蒸汽吞吐開(kāi)采技術(shù)適合哈薩克斯坦S區(qū)塊K油田的稠油油藏,不僅改善了該油藏的開(kāi)發(fā)效果,而且提高了該油田的采出程度,對(duì)類似稠油油藏的開(kāi)發(fā)具有重要指導(dǎo)與借鑒意義。
[Abstract]:The heavy oil reservoir in S block of Kazakstan is located in a semi-desert hilly plain with extensive development of saline-alkali land. There are four main problems in the development of conventional cold production: shallow reservoir depth, small production pressure difference, Affecting oil well production and production increase effect; poor oil flow and low productivity; gentle structure, serious coning of edge and bottom water, rapid decline of production; loose formation, serious sand production in oil reservoir, formation of mixed scale of sand and organic matter at low temperature, Resulting in a sharp decline in oil production capacity. In order to improve the development effect of this heavy oil reservoir, in view of the problems existing in the development process, the present research situation of steam huff and puff production technology at home and abroad is investigated, and the geological characteristics of heavy oil reservoir in S block of Kazakhstan are studied synthetically. Natural exploitation, water drive and steam stimulation are selected to demonstrate the feasibility of steam huff and puff recovery in heavy oil reservoir in S block of Kazakstan. By means of reservoir numerical simulation, the well type, well pattern and well spacing are optimized, and the steam injection speed, steam dryness, steam injection rate and steaming time that affect the effect of steam huff and puff are optimized. The optimization of completion sand control technology and oil recovery technology were studied, and the scheme optimization design was put forward finally. It was applied to K oil field in S block of Kazakhstan, and good development effect was obtained. 22 test wells were all put into production by steam huff and puff, and all of them were put into production by steam huff and puff. The daily oil production is up to 12.4t, and the average oil production is 3 times of that before steam injection. The effect of increasing production is obvious, and the accumulative oil increment is 17292t. The field application results show that the steam stimulation technology is suitable for heavy oil reservoirs in K oilfield in S block of Kazakhstan, which not only improves the development effect of this reservoir, but also improves the recovery degree of the oil field. It has important guidance and reference significance for the development of similar heavy oil reservoirs.
【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】：2016
【分類號(hào)】：TE345

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