本文關(guān)鍵詞： 花崗巖潛山 優(yōu)質(zhì)儲(chǔ)層 成因分析 灰度能量屬性 沙壘田凸起　出處：《中國(guó)石油勘探》2017年04期 　論文類型：期刊論文

【摘要】：為弄清低勘探程度區(qū)花崗巖潛山優(yōu)質(zhì)儲(chǔ)層的分布特征,以地質(zhì)模式為指導(dǎo),利用刻畫(huà)花崗巖風(fēng)化殼效果明顯的灰度能量屬性,精細(xì)描述了渤海海域沙壘田凸起西段花崗巖優(yōu)質(zhì)儲(chǔ)層的范圍和厚度,綜合分析構(gòu)造活動(dòng)、風(fēng)化淋濾及古地溫變化等因素對(duì)花崗巖儲(chǔ)層的控制模式和分布特征的影響,探索了一套地質(zhì)成因與地球物理相結(jié)合的預(yù)測(cè)方法。利用該方法對(duì)沙壘田凸起西段花崗巖潛山優(yōu)質(zhì)儲(chǔ)層進(jìn)行預(yù)測(cè),研究結(jié)果表明:研究區(qū)花崗巖潛山長(zhǎng)石等脆性礦物含量高,為優(yōu)質(zhì)儲(chǔ)層的形成奠定了基礎(chǔ);斷層兩盤(pán)地層的錯(cuò)動(dòng)引發(fā)誘導(dǎo)裂縫的發(fā)育,褶皺脊部的引張作用力促使高角度裂縫的發(fā)育,構(gòu)造隆升引起的溫壓變化控制了近水平裂縫的發(fā)育;研究區(qū)西南緣為3類裂縫的疊加區(qū),裂縫極為發(fā)育,且研究區(qū)西南緣長(zhǎng)期接受風(fēng)化淋濾作用,是花崗巖優(yōu)質(zhì)儲(chǔ)層發(fā)育帶。預(yù)測(cè)結(jié)果與實(shí)鉆揭示的實(shí)際地質(zhì)情況相符合,這說(shuō)明地質(zhì)成因與地球物理相結(jié)合研究方法能有效預(yù)測(cè)研究區(qū)優(yōu)質(zhì)儲(chǔ)層的分布,為低勘探程度區(qū)花崗巖潛山優(yōu)質(zhì)儲(chǔ)層預(yù)測(cè)提供參考。
[Abstract]:In order to understand the distribution characteristics of high quality granite buried hill reservoirs in low exploration area, the grayscale energy attribute which depicts the effect of granite weathering crust is used to depict granite weathering crust under the guidance of geological model. The range and thickness of the high quality granite reservoirs in the western section of the Shalieda uplift in Bohai Sea are described in detail, and the tectonic activities are comprehensively analyzed. The influence of weathering and leaching and paleogeothermal variation on the control pattern and distribution characteristics of granite reservoir. A set of prediction method combining geological genesis and geophysics is explored, which is used to predict the high quality reservoir of granite buried hill in the western section of Shalitian uplift. The results show that the content of brittle minerals such as granite buried hill feldspar in the study area is high, which lays a foundation for the formation of high quality reservoir. The development of induced fractures is caused by the dislocation of the two layers of the fault, the development of high angle fractures is promoted by the extensional force in the fold ridge, and the development of the near horizontal fractures is controlled by the variation of temperature and pressure caused by the uplift of the structure. The southwest edge of the study area is a superimposed area of three types of fractures, and the fracture is extremely developed, and the southwest edge of the study area has been subjected to weathering and leaching for a long time. The prediction results are consistent with the actual geological conditions revealed by real drilling, which indicates that the combination of geological genesis and geophysics can effectively predict the distribution of high quality reservoirs in the study area. It provides a reference for the prediction of high quality granite buried hill reservoir in low exploration level area.
【作者單位】： 中海油研究總院;
【基金】：國(guó)家科技重大專項(xiàng)“中國(guó)近海富烴凹陷優(yōu)選與有利勘探方向預(yù)測(cè)”(2016ZX05024-002) 中國(guó)地質(zhì)調(diào)查局“中國(guó)礦產(chǎn)地質(zhì)與成礦規(guī)律綜合集成和服務(wù)(礦產(chǎn)地質(zhì)志)”(DD20160346)
【分類號(hào)】：P618.13
【正文快照】： 隨著渤海油氣勘探的不斷深入,花崗巖潛山作為一種重要的油氣儲(chǔ)層,日益成為渤海油區(qū)增儲(chǔ)上產(chǎn)的重要領(lǐng)域[1-6],但其儲(chǔ)層非均質(zhì)性強(qiáng)[7-13],勘探風(fēng)險(xiǎn)大,優(yōu)質(zhì)儲(chǔ)層預(yù)測(cè)成為低勘探程度區(qū)花崗巖潛山評(píng)價(jià)的關(guān)鍵。花崗巖儲(chǔ)層預(yù)測(cè)不同于碎屑巖,碎屑巖儲(chǔ)層多為“相控”,其優(yōu)質(zhì)儲(chǔ)層的分布與，

本文編號(hào)：1473349