【摘要】：杏七區(qū)區(qū)塊水驅(qū)包括基礎(chǔ)井網(wǎng)、一次加密井網(wǎng)和二次加密井網(wǎng)三套井網(wǎng),各套水驅(qū)井網(wǎng)含水均在91%以上。需要開展區(qū)塊層系井網(wǎng)細(xì)化方法研究。減少井網(wǎng)內(nèi)的層間干擾,提高各類油層的動用程度。區(qū)塊共細(xì)分九十八個(gè)單層,對PⅠ1~3主力油層進(jìn)行了沉積單元的劃分,共有九個(gè),非主力油層劃分沉積單元有八十九個(gè)。由內(nèi)前緣相水下分流平原沉積形成的產(chǎn)物包括PⅠ1_1、PⅠ1_2和PⅠ2_1~1單元,PⅠ2_1~2、PⅠ3_1、PⅠ2_2單元為三角洲下分流平原的沉積產(chǎn)物。PⅠ3_2、PⅠ3_3為三角洲上分流平原的沉積產(chǎn)物。杏七區(qū)主力油層平均砂巖厚度18.51m,有效厚度11.29m。區(qū)塊非主力油層由大型河流——三角洲前緣沉積體系沉積形成,以穩(wěn)定分布的前緣席狀砂及表外儲層沉積為主,整體發(fā)育較差。應(yīng)用Petrel軟件建立了薩葡高油層組細(xì)分小層地質(zhì)模型,縱向網(wǎng)格細(xì)化至0.2m;利用Eclipse軟件對Petrel軟件的建模成果進(jìn)行物性整合產(chǎn)生建立地質(zhì)模型所需的數(shù)據(jù),并制作網(wǎng)格幾何模型和屬性模型用于進(jìn)行杏七區(qū)數(shù)值模擬研究。根據(jù)區(qū)塊油層發(fā)育特點(diǎn)以及井網(wǎng)部署方式,杏七區(qū)一類油層發(fā)育較好,可以分兩套層系進(jìn)行開采;而對于發(fā)育不好的三類油層發(fā)育,整個(gè)薄差儲層沒有潛力進(jìn)行獨(dú)自三次加密調(diào)整,井網(wǎng)進(jìn)行三次加密調(diào)整的前提是要分析對其余井網(wǎng)的影響。
[Abstract]:Water flooding in Xing7 block includes three sets of well pattern: basic well pattern, primary infill well pattern and secondary infill well pattern. The water cut of each set of water drive well pattern is above 91%. It is necessary to carry out research on the refinement method of block stratified well pattern. Reduce the interlayer interference in the well pattern and improve the production degree of all kinds of reservoirs. The block is divided into 98 monolayers, and the main oil layers of P 鈪，

本文編號：2237836