發(fā)布時(shí)間：2019-03-20 08:50

【摘要】：本論文研究區(qū)位于大慶長(zhǎng)垣南部,目的層為黑帝廟油層,前人對(duì)薩葡高油層研究較多,而對(duì)黑帝廟油層相對(duì)較少,氣源不清、輸導(dǎo)通道不明確及保存條件不清楚等對(duì)于確定下一步鉆探方向非常不利。黑帝廟油層淺層氣成藏規(guī)律認(rèn)識(shí)不清,因此急需開(kāi)展研究區(qū)內(nèi)黑帝廟油層淺層氣成藏規(guī)律研究。本文以巖心、測(cè)井、地震等資料為基礎(chǔ),應(yīng)用高分辨率層序地層學(xué)等理論,對(duì)大慶長(zhǎng)垣黑帝廟油層沉積微相展布及有利儲(chǔ)層預(yù)測(cè)進(jìn)行研究,研究表明:黑地廟油層為北部物源西南水系分支,屬于典型的河控緩坡三角洲沉積體系,HI1小層在研究區(qū)北部缺失是由于受后期構(gòu)造抬升剝蝕造成的;研究區(qū)為三角洲前緣亞相沉積體系,此區(qū)域發(fā)育的微相類型主要以水下分流河道、河口壩、遠(yuǎn)砂壩等微相為主,沉積微相垂向演化具有過(guò)渡性,從前三角洲亞相過(guò)度到三角洲前緣亞相外前緣區(qū)再過(guò)渡到三角洲前緣亞相內(nèi)外前緣過(guò)渡區(qū)—三角洲前緣亞相內(nèi)前緣區(qū),反映了垂向上湖盆逐漸萎縮的過(guò)程;黑帝廟油層砂體分布總體呈南北向,具有北厚南薄的趨勢(shì),東西兩側(cè)砂體較薄。孔滲值分布也呈北大南小的趨勢(shì),總體與砂體厚度分布規(guī)律大致相同。儲(chǔ)層的分布及其物性質(zhì)量主要沉積相控制,其次是成巖作用的影響;大慶長(zhǎng)垣南部黑帝廟油層HⅠ油組的有利目標(biāo)為葡西-2、葡西-3和新肇-3三個(gè)圈閉,HⅡ油組的有利目標(biāo)為葡西-2、葡西-3和新肇-2三個(gè)圈閉。
[Abstract]:The study area of this paper is located in the south of Daqing Placanticline, the target layer is Hetimiao oil layer, the predecessors have more research on Sapo high oil layer, but the Heitimiao reservoir is relatively few, and the gas source is unclear. It is very disadvantageous to determine the direction of drilling in the next step, such as the unclear transportation channel and the unclear preservation conditions. The law of shallow gas accumulation in Heidimiao reservoir is not clear, so it is urgent to study the law of shallow gas accumulation in Heidimiao reservoir in the study area. Based on core, well logging and seismic data, this paper applies the theory of high resolution sequence stratigraphy to study the distribution of sedimentary microfacies and the prediction of favorable reservoirs in Hetimiao reservoir, Daqing Placanticline. The results show that the Heidimiao reservoir is a branch of the southwestern water system of the northern provenance and belongs to the typical river-controlled gentle slope delta sedimentary system. The absence of the HI1 sublayer in the northern part of the study area is due to the structural uplift and denudation in the late stage. The study area is a delta front subfacies sedimentary system, the microfacies types developed in this area are mainly underwater distributary channel, estuarine dam, far sand dam and other microfacies, and the vertical evolution of sedimentary microfacies is transitional. The transition from the former delta subfacies to the delta front subfacies outer front area and then to the delta front subfacies inner front region reflects the process of vertical upper lake basin gradually shrinking. The distribution of sand body in Heidimiao reservoir is generally in the direction of south-north, with the trend of thick north-south and thin sand body on both sides of east and west. The distribution of pore permeability also shows a trend of smaller than that of the north and south, and the distribution law of the thickness of the sand body is approximately the same as that of the whole. The distribution of reservoir and its physical quality are mainly controlled by sedimentary facies, followed by the influence of diagenesis. The favorable targets of H 鈪，

本文編號(hào)：2444050