本文關(guān)鍵詞： 動(dòng)態(tài)開(kāi)發(fā)特征 水侵規(guī)律 剩余儲(chǔ)量 開(kāi)發(fā)潛力 調(diào)整對(duì)策　出處：《重慶科技學(xué)院》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：黃龍場(chǎng)長(zhǎng)興組氣藏是典型的碳酸鹽巖巖性圈閉氣藏,具有埋藏深,非均質(zhì)性強(qiáng)等特點(diǎn)。該氣藏2003年4月投產(chǎn)開(kāi)發(fā)以來(lái),面臨產(chǎn)量遞減快、水侵嚴(yán)重等問(wèn)題,導(dǎo)致對(duì)氣藏剩余儲(chǔ)量分布認(rèn)識(shí)不清,后期開(kāi)發(fā)調(diào)整困難。因此,為合理開(kāi)發(fā)該氣藏,提高氣藏的采出程度,制定氣藏的開(kāi)發(fā)調(diào)整對(duì)策就顯得十分重要。本文以黃龍場(chǎng)長(zhǎng)興組氣藏的靜、動(dòng)態(tài)資料為基礎(chǔ),采用理論研究與數(shù)值模擬研究相結(jié)合的思路,綜合應(yīng)用滲流力學(xué)、氣藏工程、現(xiàn)代數(shù)學(xué)、數(shù)值模擬技術(shù)等多學(xué)科理論與技術(shù)。首先基于滲流力學(xué)理論建立符合氣藏的產(chǎn)能評(píng)價(jià)模型,分析氣藏的遞減規(guī)律和氣井動(dòng)用儲(chǔ)量,研究氣藏的動(dòng)態(tài)開(kāi)發(fā)特征,評(píng)價(jià)氣藏開(kāi)發(fā)效果;其次,通過(guò)氣藏工程和數(shù)值模擬方法研究氣藏的水侵量、水體大小、水體活躍程度以及影響氣藏水侵的主要因素,揭示氣藏的水侵規(guī)律;再次,通過(guò)建立數(shù)值模擬模型研究氣藏剩余氣的分布特征,獲得氣藏的開(kāi)發(fā)潛力;進(jìn)而,制定氣藏合理開(kāi)發(fā)調(diào)整對(duì)策,并進(jìn)行指標(biāo)預(yù)測(cè),優(yōu)選出最佳調(diào)整方案。通過(guò)研究取得的創(chuàng)新點(diǎn)及主要成果如下:(1)建立了適合于有水氣藏的產(chǎn)水氣井產(chǎn)能計(jì)算模型,弄清了水氣比對(duì)氣井無(wú)阻流量的影響規(guī)律,獲得氣藏?zé)o阻流量與水氣比變化關(guān)系函數(shù)。(2)建立了邊水氣藏氣井見(jiàn)水機(jī)理模型,模擬帶有邊水氣井動(dòng)態(tài),認(rèn)識(shí)邊水運(yùn)動(dòng)規(guī)律及影響邊水氣藏水侵的主要因素。(3)弄清了黃龍場(chǎng)長(zhǎng)興組氣藏的水侵特征,總體表現(xiàn)為構(gòu)造南翼和北翼較低位置的黃龍001-X1井和黃龍004-X3井已發(fā)生明顯的水侵,南部水體比北部活躍。(4)弄清了黃龍場(chǎng)長(zhǎng)興組氣藏的剩余氣分布規(guī)律,主要分布在氣藏中部和高部位處,剩余儲(chǔ)量36.63×10~8m~3。(5)制定氣藏優(yōu)化配產(chǎn)和排水采氣的綜合開(kāi)發(fā)調(diào)整對(duì)策,預(yù)測(cè)15年,預(yù)測(cè)期末累產(chǎn)氣量59.98×10~8m~3/d,采出程度74.49%,累產(chǎn)氣量較目前生產(chǎn)狀況生產(chǎn)提高了1.92×10~8m~3/d,采出程度提高了2.10%。邊水前緣推進(jìn)到黃龍001-X1井生產(chǎn)層段以后,沒(méi)有進(jìn)一步向前推進(jìn),減輕了對(duì)其它生產(chǎn)井的危害,氣藏開(kāi)發(fā)效果得到一定改善。
[Abstract]:The Changxing formation gas reservoir in Huanglongchang is a typical carbonate lithologic trap gas reservoir with the characteristics of deep burial and strong heterogeneity. Since the reservoir was put into production in April 2003, it has been faced with the problems of rapid production decline and serious water invasion. As a result, the distribution of the remaining reserves of the gas reservoir is not clear, and it is difficult to adjust the later development. Therefore, in order to develop the gas reservoir reasonably, the recovery degree of the gas reservoir can be improved. On the basis of static and dynamic data of Changxing formation gas reservoir in Huanglong Chang Chang formation, this paper combines theoretical research with numerical simulation study, synthetically applies percolation mechanics and gas reservoir engineering. Modern mathematics, numerical simulation technology and other multi-disciplinary theories and techniques. Firstly, based on the theory of percolation mechanics, the productivity evaluation model of gas reservoir is established, and the law of gas reservoir decline and the production reserves of gas well are analyzed, and the dynamic development characteristics of gas reservoir are studied. Secondly, through gas reservoir engineering and numerical simulation methods to study the water invasion, water body size, water body activity and the main factors affecting gas reservoir water invasion, to reveal the gas reservoir water invasion law. Through the establishment of numerical simulation model to study the distribution characteristics of residual gas in gas reservoir, the development potential of gas reservoir is obtained, and then, the reasonable development adjustment countermeasures of gas reservoir are worked out, and the indexes are forecasted. According to the innovation points and main results obtained by the research, the productivity calculation model of water-producing gas wells suitable for water-producing gas reservoirs is established, and the influence law of water-gas ratio on the unobstructed flow rate of gas wells is clarified. The relation function of unhindered flow rate and water-gas ratio in gas reservoir is obtained. (2) the water breakthrough mechanism model of gas well with edge water gas reservoir is established, and the performance of gas well with edge water gas well is simulated. The characteristics of water invasion of Changxing formation gas reservoir in Huanglong Chang Chang formation are clarified. The main characteristics of water invasion are as follows: well Huanglong 001-X1 and well Huanglong 004-X3, located at lower position in the south and north wing of the structure, have undergone obvious water invasion. The distribution law of residual gas in Changxing formation gas reservoir in Huanglong Chang Chang formation is clarified in the south water body, which is mainly distributed in the middle and high parts of the gas reservoir, and the remaining reserves are 36.63 脳 10 ~ (8) m ~ ((3)) ~ (5)) and the comprehensive development and adjustment countermeasures for optimizing gas distribution and drainage gas recovery are worked out. For the last 15 years, the predicted cumulative gas production capacity was 59.98 脳 10 ~ (10) m ~ (-1) / d, the recovery degree was 74.49%, the cumulative gas production rate was 1.92 脳 10 ~ (8) mm / d higher than the current production status, and the recovery degree was increased by 2.10%. After the edge of the water front was pushed to the production layer of Huanglong 001-X _ 1 well, no further progress was made. The harm to other production wells has been alleviated and the gas reservoir development effect has been improved to some extent.
【學(xué)位授予單位】：重慶科技學(xué)院
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TE37

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