【摘要】：利津油田隸屬于勝利油區(qū),其29斷塊注采井網(wǎng)不完善,地層能量得不到補(bǔ)充,產(chǎn)液量下降;單元的注采矛盾加劇,井網(wǎng)控制和水驅(qū)控制程度下降,導(dǎo)致注水開發(fā)形勢嚴(yán)峻。利29塊主力油層沙二段含油面積1.9km2、地質(zhì)儲量351.34×104t,井網(wǎng)控制程度68.6%,水驅(qū)控制程度僅有54.8%,邊部井網(wǎng)未控制儲量達(dá)116.7×104t,實(shí)施“二次開發(fā)”的潛力巨大。因此,通過對利津油田29塊當(dāng)前開發(fā)效果的分析,評價其儲量動用情況、層系和井網(wǎng)適應(yīng)性、水驅(qū)效果和能量狀況,發(fā)現(xiàn)其存在的問題和進(jìn)一步開發(fā)的潛力;同時,在剩余油富集區(qū)研究的基礎(chǔ)上,對開發(fā)方案進(jìn)行有針對性的調(diào)整設(shè)計,并對優(yōu)選的最優(yōu)方案的開發(fā)指標(biāo)和采收率進(jìn)行預(yù)測。預(yù)計方案實(shí)施后,單井控制儲量可提升到14.7?104t;十五年末采出程度為37.8%,區(qū)塊綜合含水96.7%,提高采收率9.1%,增加可采儲量33.0?104t;有效地改善了開發(fā)效果、提升了采收率。
[Abstract]:Lijin Oilfield belongs to Shengli oil area, its 29 fault block injection-production well pattern is not perfect, formation energy can not be replenished, liquid production is decreased, the contradiction between injection and production of unit is aggravated, well pattern control and water drive control degree decrease, which leads to serious situation of water injection development. The oil bearing area of the second member of the main oil formation of Block Li 29 is 1.9 km ~ 2, the geological reserves are 351.34 脳 10 ~ 4t, the control degree of well pattern is 68.6, the control degree of water drive is only 54.8%, and the uncontrolled reserve of well pattern in the edge part is 116.7 脳 10 ~ 4 t. The potential for the implementation of "secondary development" is enormous. Therefore, through the analysis of the current development effect of Block 29 in Lijin Oilfield, the reserve production situation, adaptability of strata and well pattern, water drive effect and energy status are evaluated, and the existing problems and potential for further development are found. At the same time, on the basis of the study of the remaining oil rich area, the development scheme is adjusted and designed, and the development index and recovery factor of the optimal scheme are predicted. It is estimated that after the implementation of the scheme, the controlled reserves of single well can be raised to 14.7104t, the recovery degree is 37.8t at the end of 15 years, the comprehensive water cut of the block is 96.77.The recovery factor is improved by 9.1and the recoverable reserve is increased by 33.0104t. It can effectively improve the development effect and enhance the recovery efficiency.
【學(xué)位授予單位】：中國石油大學(xué)(華東)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TE34

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