本文選題：超稠油　切入點(diǎn)：套變井　出處：《東北石油大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：遼河油田油藏結(jié)構(gòu)以稠油油藏為主,開采區(qū)塊中稠油區(qū)塊占據(jù)比例很大,其中曙光采油廠的超稠油藏開發(fā)都已經(jīng)進(jìn)入了吞吐后期,長(zhǎng)期多輪次注水、注汽的吞吐降壓開采,油井地層出水狀況不斷加劇、油層上部的套管補(bǔ)償器出現(xiàn)嚴(yán)重?fù)p壞、套管損壞漏失等現(xiàn)象,導(dǎo)致油井含水量急劇增高,并且向油層倒灌的現(xiàn)象頻繁出現(xiàn),影響油井正常生產(chǎn)情況。同時(shí),出現(xiàn)套管變形的油井的數(shù)量越來越多,變形后的套管無(wú)法通過常規(guī)的井下工具,并且現(xiàn)有的套變封隔器也已經(jīng)無(wú)法滿足油井生產(chǎn)的溫度要求,使得大量高含水油井很難實(shí)施機(jī)械堵水工藝措施,嚴(yán)重影響此類油井的采收率。針對(duì)以上出現(xiàn)的多種問題提出了針對(duì)超稠油油井的機(jī)械堵水工藝管柱技術(shù)研究,目的是通過對(duì)7"套管井、5"套管井以及7"套管變形井的井下工藝管柱的原理、結(jié)構(gòu)、形變等各方面的研究及優(yōu)化,依此來豐富和完善超稠油油井的工藝增產(chǎn)措施,提高此類油井的最終采收率。針對(duì)超稠油井的機(jī)械堵水工藝技術(shù)在2009-2012年總計(jì)實(shí)施150余井次,累計(jì)增油總量為44100t,其中,超稠油籠統(tǒng)堵水工藝技術(shù)共實(shí)施50余井次,措施成功率達(dá)到100%,累計(jì)增油量為14303t;可摻洗式機(jī)械堵水技術(shù)共實(shí)施90余井次,措施成功率達(dá)到100%,累計(jì)增油量為29137t,;超稠油套變井機(jī)械堵水工藝技術(shù)共實(shí)施3井次,措施成功率達(dá)到100%,累計(jì)增油量為660t,滿足了超稠油油井的實(shí)際生產(chǎn)需要,在油田的超稠油生產(chǎn)中發(fā)揮了巨大作用,取得巨大的經(jīng)濟(jì)效益和社會(huì)效益。針對(duì)超稠油井的機(jī)械堵水工藝技術(shù)的研究成功對(duì)遼河油田超稠油油井的常規(guī)生產(chǎn)、后期開采具有重要意義。
[Abstract]:The reservoir structure of Liaohe Oilfield is mainly heavy oil reservoir, and the heavy oil block occupies a large proportion in the production block. The development of super heavy oil reservoir in Shuguang Oil production Plant has entered the late stage of huff and puff, and the long term multiple rounds of water injection and steam injection are used for stimulation and pressure reduction. The water situation of the oil well formation is getting worse, the casing compensator in the upper part of the reservoir is seriously damaged, the casing damage is lost and so on, which causes the water content of the oil well to increase sharply, and the phenomenon of pouring back to the reservoir frequently. At the same time, the number of wells with casing deformation is increasing, the casing after deformation can not pass through conventional downhole tools, and the existing casing Packer can no longer meet the temperature requirements of oil well production. It is very difficult for a large number of high water cut wells to carry out mechanical water shutoff measures, which seriously affect the oil recovery of this kind of wells. In view of the above problems, the technical research of mechanical water shutoff technology for super heavy oil wells is put forward. The purpose of this paper is to enrich and perfect the measures for increasing production of super heavy oil wells by studying and optimizing the principle, structure and deformation of downhole process string of 7 "casing well" and 7 "casing deformation well." In 2009-2012, the mechanical water shutoff technology for super heavy oil wells has been implemented more than 150 times, with a cumulative total increase of 44100 tons, of which more than 50 times have been carried out in general water shutoff technology for super heavy oil wells. The success rate of the measures is 100 and the cumulative oil increment is 14303t, the mechanical plugging technology of water plugging by mixing and washing has been carried out for more than 90 wells, the success rate of the measures has reached 100, the accumulative oil increment is 29137t / t, and the mechanical water shutoff technology of ultra-heavy oil casing variable wells has been carried out for three times. The success rate of the measures reached 100 and the accumulative oil increment was 660 t, which satisfied the actual production needs of super heavy oil wells and played a great role in the production of super heavy oil in oil fields. The research on the technology of mechanical water shutoff for super heavy oil wells is of great significance to the conventional production of super heavy oil wells in Liaohe Oilfield and to the later stage of production.
【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)】：TE935

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本文編號(hào)：1648512