本文選題：四川盆地　切入點：高石梯—磨溪地區(qū)　出處：《天然氣工業(yè)》2017年01期

【摘要】：四川盆地高石梯—磨溪地區(qū)下寒武統(tǒng)龍王廟組氣藏是國內(nèi)單體規(guī)模最大的特大型海相碳酸鹽巖整裝氣藏,找準溶蝕孔洞或者溶孔與裂縫疊加形成的高滲區(qū)是該氣藏開發(fā)獲得高產(chǎn)穩(wěn)產(chǎn)氣井的關(guān)鍵,而優(yōu)質(zhì)白云巖儲層埋藏深且存在著較強的非均質(zhì)性,因此儲層預測難度大。為此,開展了相關(guān)的地震攻關(guān)研究并形成了配套技術(shù),主要包括:①通過已有資料深入分析,建立地質(zhì)模型,開展正演建立儲層地震響應模式;②采用井驅(qū)振幅處理技術(shù),并通過VSP測井資料求取球面擴散補償因子,實現(xiàn)地震資料真振幅恢復;③利用井驅(qū)高分辨拓頻技術(shù)提高深層地震數(shù)據(jù)的分辨率,獲得了高品質(zhì)的疊前時間偏移成果數(shù)據(jù);④通過基于地層模型的全局自動地震解釋技術(shù)實現(xiàn)多套灘相儲層追蹤,解決了多套儲層橫向連片、縱向疊置的預測難題,高質(zhì)高效地刻畫出優(yōu)質(zhì)儲層的平面展布。利用所形成的配套技術(shù)最終實現(xiàn)了準確定位鉆井軌跡,指導部署的開發(fā)井口口獲得高產(chǎn),助推了百億立方米級特大型現(xiàn)代化氣田的建成。
[Abstract]:The low Cambrian Longwangmiao formation gas reservoir in Gaoshititian-Moxi area, Sichuan Basin, is the largest large-scale marine carbonate gas reservoir in China. Finding correct solution hole or high permeability area formed by superposition of dissolved pore and fracture is the key to obtain high and stable gas production well in this gas reservoir, while the reservoir of high quality dolomite is buried deep and has strong heterogeneity, so it is difficult to predict the reservoir. Related seismic research was carried out and a complete set of techniques was formed, mainly including: 1, through in-depth analysis of existing data, the establishment of geological models, the development of forward modeling of reservoir seismic response model and the adoption of well displacement amplitude processing technology. The spherical diffusion compensation factor is obtained by VSP logging data, and the true amplitude recovery of seismic data can be realized. The resolution of deep seismic data can be improved by using the high resolution frequency extension technique of well drive. The high quality data of prestack time migration are obtained. Through the global automatic seismic interpretation technology based on stratigraphic model, the reservoir tracing of multiple sets of beach facies is realized, which solves the problem of prediction of horizontal and vertical overlapping of multiple sets of reservoirs. The plane distribution of high quality reservoir is characterized with high quality and high efficiency. Finally, the drilling trajectory is accurately located by using the matching technology formed, and the high yield is obtained under the guidance of the deployment of the development wellhead. The construction of 10 billion cubic meters of super-large and modern gas fields has been promoted.
【作者單位】： 成都理工大學;中國石油西南油氣田公司;
【基金】：中國石油天然氣股份有限公司重大科技專項“四川盆地深層海相碳酸鹽巖勘探開發(fā)技術(shù)現(xiàn)場實驗”[編號:2014E-3208(GF)] 國家科技重大專項“大型油氣田及煤層氣開發(fā)”(編號:2011ZX05004-005、2016ZX05004-005) 中國石油天然氣集團公司重大科技專項“西南油氣田天然氣上產(chǎn)300億立方米關(guān)鍵技術(shù)研究與應用”(編號:2016E-06)
【分類號】：P618.13;P631.4;TE37

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