本文關(guān)鍵詞： 寬方位地震 方位各向異性 走滑斷裂 儲層預測　出處：《成都理工大學》2015年碩士論文　論文類型：學位論文

【摘要】：相對于窄方位角地震資料,寬方位角地震資料具有更好的識別裂縫或儲層的能力和成像分辨率等。本文以研究寬方位資料特點及實際應用為核心,依托準噶爾盆地MN地區(qū)MH1井區(qū)實際寬方位角地震資料,研究了寬方位角地震資料在走滑斷裂解釋和儲層預測中的應用方法和效果。首先論述了不同方位角觀測下斷裂和裂縫發(fā)育帶的縱波方位各向異性屬性特征。對于相干、曲率等屬性,當觀測方位垂直于小斷層走向時,小斷層能獲得較為清晰的成像;而當觀測方位與小斷層走向斜交時,小斷層無法很好成像�？v波反射振幅與測線和裂縫走向有關(guān),測線與裂縫走向平行時振幅最強;隨著測線與裂縫走向夾角的增大,振幅逐漸減弱;測線與裂縫走向垂直時,振幅最弱。基于縱波方位各向異性屬性特點,開展了分方位疊加資料的相干、曲率、方向加權(quán)相干、振幅等屬性提取和解釋工作,以走滑斷裂Sylvester簡單剪切模式為指導,結(jié)合研究區(qū)構(gòu)造演化背景,對MH1井區(qū)走滑斷裂帶進行了合理解釋和對裂縫發(fā)育帶進行了地震預測。利用不同橫縱比資料,運用波形分類、屬性分析、稀疏脈沖反演及神經(jīng)網(wǎng)絡(luò)測井參數(shù)反演等技術(shù)手段開展了儲層預測研究。結(jié)果表明寬方位資料預測結(jié)果與鉆井資料吻合更好,認為寬方位角資料對疊置砂體的刻畫和有利儲層發(fā)育帶的預測效果更好。本研究解釋了MH1井北走滑斷裂系統(tǒng),落實了7個斷塊圈閉,面積26.7km2;研究認為裂縫發(fā)育帶為近東西向和近平行于走滑斷裂伴生羽狀斷裂走向發(fā)育;落實了三套疊置砂體的平面展布規(guī)律;研究認為MH1-MH4井砂體和MH2井砂體南部是有利儲層,為研究區(qū)的勘探部署提供了有利的支撐。
[Abstract]:Compared with narrow azimuth seismic data, wide azimuth seismic data have better ability to identify fractures or reservoirs and imaging resolution. Based on the actual wide azimuth seismic data of MH1 well area in MN area of Junggar Basin, The application method and effect of wide azimuth seismic data in the interpretation of strike-slip faults and reservoir prediction are studied. Firstly, the characteristics of azimuth anisotropy of faults and fracture development zones under different azimuth angles are discussed. Curvature and other properties, when the observed azimuth is perpendicular to the strike of the small fault, the small fault can be clearly imaged, but when the observed azimuth is oblique with the strike of the small fault, The reflection amplitude of longitudinal wave is related to the measured line and fracture strike, and the amplitude is strongest when the measuring line is parallel to the fracture strike, and the amplitude decreases gradually with the increase of the angle between the measured line and the fracture strike, and when the measured line is perpendicular to the fracture strike, Based on the characteristic of azimuth anisotropy of longitudinal wave, the extraction and interpretation of coherent, curvature, directional weighted coherence and amplitude of azimuth stacking data are carried out, which are guided by the Sylvester simple shear model of strike-slip fault. Combined with the tectonic evolution background of the study area, the reasonable interpretation of the strike-slip fault zone in the MH1 well area and the earthquake prediction of the fracture development zone are carried out. Using the data of different transverse and vertical ratios, the waveform classification and attribute analysis are used. Sparse pulse inversion and neural network logging parameter inversion are used to study reservoir prediction. The results show that the prediction results of wide azimuth data are in better agreement with drilling data. It is considered that the wide azimuth data is more effective in the characterization of superimposed sand bodies and the prediction of favorable reservoir development zones. This study explains the North strike slip fault system of MH1 well and implements 7 fault block traps. The area of the fracture is 26.7 km ~ 2. It is considered that the fracture development zone is nearly east-west and nearly parallel to the strike-slip fault associated with plume fault, and the horizontal distribution of the triple-set sand body is carried out. It is considered that the MH1-MH4 well sand body and the southern MH2 well sand body are favorable reservoirs. It provides favorable support for the exploration and deployment of the study area.
【學位授予單位】：成都理工大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：P618.13;P631.4

【參考文獻】

相關(guān)期刊論文 前3條

1 賈承造,趙文智,鄒才能,李明,池英柳,姚逢昌,鄭曉東,劉曉,殷積峰;巖性地層油氣藏勘探研究的兩項核心技術(shù)[J];石油勘探與開發(fā);2004年03期

2 張保慶;周輝;左黃金;王者武;賀兆全;曾天玖;秦伯東;;寬方位地震資料處理技術(shù)及應用效果[J];石油地球物理勘探;2011年03期

3 邵雨;汪仁富;張越遷;汪新;李震華;梁瀚;;準噶爾盆地西北緣走滑構(gòu)造與油氣勘探[J];石油學報;2011年06期

，

本文編號：1555095