H區(qū)塊縫洞單元連通方式及注水開(kāi)發(fā)對(duì)策研究
本文選題:開(kāi)發(fā)對(duì)策 + 連通方式; 參考:《西南石油大學(xué)學(xué)報(bào)(自然科學(xué)版)》2017年03期
【摘要】:針對(duì)H區(qū)塊縫洞型油藏連通單元井組實(shí)施注水驅(qū)替開(kāi)發(fā)效果差異很大這一問(wèn)題,開(kāi)展了縫洞單元連通方式及注水開(kāi)發(fā)對(duì)策研究。利用地球物理方法對(duì)微裂縫、大尺度裂縫、有效基質(zhì)、孔洞進(jìn)行刻畫(huà),提出了3種縫洞單元連通方式:暗河巖溶管道、大尺度縫、彌散縫伴有大尺度縫。對(duì)不同的縫洞連通單元開(kāi)展機(jī)理性數(shù)值模擬和礦場(chǎng)試驗(yàn)研究,給出合理的注水開(kāi)發(fā)對(duì)策。暗河體系具有連通井組低注高采、洞注暗河驅(qū)洞采的注采關(guān)系;彌散縫伴有大尺度縫,溝通縫洞單元,不同單元二者匹配具有差異性,應(yīng)控制合理的注采比,后續(xù)動(dòng)態(tài)調(diào)整,提高注水開(kāi)發(fā)采收率,改善區(qū)塊連通單元注水驅(qū)替效果,對(duì)相同或類(lèi)似縫洞型碳酸鹽巖油藏連通單元注水開(kāi)發(fā)具有一定的借鑒及指導(dǎo)意義。
[Abstract]:In order to solve the problem that there are great differences in the effect of water flooding and development in the connected unit well group of fracture-cavity reservoir in H block, the connection mode of fracture-cavity unit and the development countermeasure of water injection are studied in this paper. Using geophysical method to describe microcracks, large scale cracks, effective matrix and holes, three kinds of connection modes of fracture and cavity unit are proposed: underground river karst pipeline, large scale crack, dispersion joint with large scale crack. Mechanical numerical simulation and field test are carried out for different fracture-cavity connected units, and reasonable water injection development countermeasures are given. The dark river system has the injection-production relation of low injection-high production in connected well group, the injection-production relation of hole injecting dark river driving hole, the dispersive fracture accompanied with large scale fracture, the difference of the match between the two units, the reasonable injection-production ratio should be controlled, and the subsequent dynamic adjustment should be carried out. Improving the water injection recovery and water flooding effect of the connected units in the block has certain reference and guiding significance for the waterflooding development of the connected units in the same or similar fractured and cavernous carbonate reservoirs.
【作者單位】: 中國(guó)石油塔里木油田分公司勘探開(kāi)發(fā)研究院;東北石油大學(xué)非常規(guī)油氣成藏與開(kāi)發(fā)省部共建國(guó)家重點(diǎn)實(shí)驗(yàn)室培育基地;
【基金】:國(guó)家科技重大專(zhuān)項(xiàng)(2011ZX05004-004)
【分類(lèi)號(hào)】:TE357.6
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