發(fā)布時(shí)間：2018-01-14 02:29

  本文關(guān)鍵詞：華慶油田元284區(qū)塊水平井開(kāi)發(fā)效果評(píng)價(jià)　出處：《西安石油大學(xué)》2015年碩士論文　論文類(lèi)型：學(xué)位論文

  更多相關(guān)文章： 華慶油田 水平井 地質(zhì)特征 生產(chǎn)特征 開(kāi)發(fā)效果評(píng)價(jià)

【摘要】：華慶油田作為長(zhǎng)慶油田近年來(lái)發(fā)現(xiàn)的幾個(gè)大型整裝油田之一,上報(bào)審批儲(chǔ)量超過(guò)5億噸。為了提高該油田長(zhǎng)63油層的開(kāi)發(fā)效益,分別采用了水平井和直井兩種不同井型進(jìn)行超前注水開(kāi)發(fā)。由于水平井開(kāi)發(fā)還處于初級(jí)階段,如何客觀的評(píng)價(jià)水平井開(kāi)發(fā)效果就顯得尤為重要,本文以元284區(qū)塊為例來(lái)進(jìn)行評(píng)價(jià)。論文針對(duì)華慶油田長(zhǎng)63油藏細(xì)分了9個(gè)小層,確定了631為元284區(qū)塊的主力層位,分別以9個(gè)小層研究了構(gòu)造特征、砂體展布、儲(chǔ)層非均質(zhì)性、隔夾層等分布特征。結(jié)合元284區(qū)塊的生產(chǎn)數(shù)據(jù)分別從生產(chǎn)動(dòng)態(tài)、產(chǎn)量遞減規(guī)律、油井見(jiàn)效特征以及含水率變化特征等方面對(duì)比分析元284區(qū)塊水平井和直井開(kāi)發(fā)區(qū)的不同,水平井開(kāi)發(fā)區(qū)呈現(xiàn)遞減趨勢(shì),月遞減率為3.9%,而直井開(kāi)發(fā)區(qū)產(chǎn)量保持穩(wěn)定,水平井的產(chǎn)量是直井產(chǎn)量的4.82倍。此外,利用水驅(qū)規(guī)律評(píng)價(jià)元284區(qū)塊水平井區(qū)開(kāi)發(fā)效果,總體水驅(qū)效果較好。最后還利用數(shù)值模擬技術(shù)預(yù)測(cè)了元284區(qū)塊水平井和直井兩種不同井型開(kāi)發(fā)的最終采收率,預(yù)測(cè)可采儲(chǔ)量482.88×104m3與水驅(qū)曲線等方法計(jì)算可采儲(chǔ)量相差不大,水平井采收率為10%左右。本文的研究結(jié)果對(duì)華慶油田元284區(qū)塊地質(zhì)特征及開(kāi)發(fā)現(xiàn)狀有了更深刻的認(rèn)識(shí),為后期開(kāi)發(fā)提供了十分重要的指導(dǎo)意義。
[Abstract]:As one of several large integrated oil fields discovered in Changqing Oilfield in recent years, Huaqing Oilfield has reported approval reserves of more than 500 million tons. In order to improve the development benefit of Chang63 reservoir in this oilfield. Two different types of horizontal well and vertical well are adopted to develop water injection in advance. Since horizontal well development is still in the primary stage, how to objectively evaluate the development effect of horizontal well is particularly important. In this paper, Yuan284 block is taken as an example to evaluate. Aiming at Chang63 reservoir of Huaqing oilfield, 9 sub-layers are subdivided, and 631 is determined as the main layer of Yuan284 block. The structural characteristics, sand distribution, reservoir heterogeneity, intercalation and other distribution characteristics are studied in 9 sub-layers, respectively. Combined with the production data of Yuan 284 block, the production performance and production decline law are studied respectively. Comparison and Analysis on the characteristics of Oil well effectiveness and Water cut variation the horizontal well development zone in Yuan284 block is different from that in the vertical well development zone. The horizontal well development zone shows a decreasing trend with a monthly decline rate of 3.9%. The production of horizontal well is 4.82 times of that of vertical well. In addition, the development effect of horizontal well in block Yuan284 is evaluated by using the rule of water drive. Finally, the final recovery factors of horizontal well and vertical well in block Yuan284 are predicted by numerical simulation. The prediction of recoverable reserves (482.88 脳 10 ~ 4m ~ 3) is not different from that of water drive curves in calculating recoverable reserves. The oil recovery of horizontal well is about 10%. The research results of this paper have a deeper understanding of the geological characteristics and development status of Yuan284 block in Huaqing Oilfield, and provide a very important guiding significance for the later development.
【學(xué)位授予單位】：西安石油大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類(lèi)號(hào)】：TE243;TE34

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