【摘要】：經(jīng)多年鉆井開發(fā)及井網(wǎng)加密,吉林大老爺廟油田的儲層發(fā)育較好的主體區(qū)塊都已先后投入生產(chǎn),復(fù)雜性與難點逐步加深,在老油田內(nèi)尋找新的有利區(qū)也越來越難,故為了弄清吉林大老爺府地區(qū)的石油天然氣地質(zhì)儲量及技術(shù)可采儲量,進一步制定詳細開發(fā)方案,提高開采效率,對研究區(qū)開展了油藏地質(zhì)特點的研究工作。吉林大老爺府地區(qū),上至下共發(fā)育有三套含油氣層系:葡萄花油氣層(姚家組一段)、高臺子油氣層(青山口組一段)、扶余油氣層(泉頭組四段)。其中高臺子油氣層是油田開發(fā)產(chǎn)能建設(shè)重點含油層位之一,具有較大的擴邊建產(chǎn)潛力,為了進一步研究,特開展此次工作,文章充分利用前人研究成果和認識,結(jié)合三維地震資料,運用層序地層學(xué),沉積學(xué)、石油地質(zhì)學(xué)以及構(gòu)造學(xué)等多學(xué)科相關(guān)理論,通過綜合分析吉林大老爺府地區(qū)的地震、測井、巖心資料的,完成了大老爺府地區(qū)高臺子油層的地質(zhì)特征研究工作。論文結(jié)合工區(qū)已有資料,條理分明的對工區(qū)地質(zhì)特征逐級分布進行研究。首先,以松遼盆地構(gòu)造演化特征為背景,開展了構(gòu)造與斷裂特征的研究,根據(jù)油層組巖性、巖相變化的旋回性及其反映在電測曲線形態(tài)上的組合特征,總結(jié)區(qū)域沉積地層演變規(guī)律將目的層段劃分為1個長期旋回,4個中期基準(zhǔn)面旋回,11個短期基準(zhǔn)旋回。以合成記錄為橋梁,對層位精細標(biāo)定,完成GI、GII、GIII、GIV四個砂組及各砂組11個小層的構(gòu)造解釋。利用時深關(guān)系建立適合的三維速度場,并成取構(gòu)造圖件,并在構(gòu)造圖和地震資料的基礎(chǔ)上,對研究區(qū)目的層段分析構(gòu)造特征,斷裂特征。研究區(qū)目的層段構(gòu)造演化遵循松遼盆地構(gòu)造演化背景,盆地經(jīng)歷了四個階段的演化歷程,形成了獨具特色的沉積地層及層序格架。在構(gòu)造上,整體形態(tài)是一背斜構(gòu)造,繼承性良好,圈閉條件有利。斷層主要分布在邊緣地區(qū),穹窿內(nèi)部不發(fā)育。其次,結(jié)合研究區(qū)沉積環(huán)境背景建立單井、聯(lián)井相模式,結(jié)合屬性特征,繪制沉積相圖,研究沉積地質(zhì)特征。高臺子油層各砂組砂巖分布穩(wěn)定。分析沉積特征屬于三角洲沉積相。再次,利用巖心鉆井資料,結(jié)合砂體展布情況,分析總結(jié)高臺子油層儲層物性特點,砂體連通性好,疊加連片,中低孔滲。最后,結(jié)合生儲蓋組合與成藏模式及油水分布規(guī)律等,開展成藏規(guī)律研究,建立研究區(qū)地區(qū)油氣成藏模式,分析油藏類型,優(yōu)選有利勘探目標(biāo)。文章深入的研究了高臺子油層的地質(zhì)特征,分析了油層動態(tài),精確的預(yù)測有利區(qū)帶。更拓寬了研究思路,對加快吉林地區(qū)油氣勘探工作的步伐有著積極的促進作用,此外,還可以為老油區(qū)的井網(wǎng)加密調(diào)整和更深一步油藏評價提供技術(shù)支持。
[Abstract]:After many years of drilling and development and well pattern infilling, the main blocks with good reservoir development have been put into production successively, and the complexity and difficulties have gradually deepened, and it is becoming more and more difficult to find new favorable areas in the old oil fields. Therefore, in order to make clear the petroleum and natural gas geological reserves and the technically recoverable reserves in the Dalaoyefu area of Jilin Province, to further formulate the detailed development plan and improve the production efficiency, the research work on the reservoir geological characteristics has been carried out in the study area. There are three sets of oil-bearing gas reservoirs: Putaohua oil and gas reservoir (first member of Yaojia formation), Gaotaizi oil and gas reservoir (one member of Qingshankou formation) and Fuyu oil and gas reservoir (fourth member of Quantou formation) in the Da'laoyefu area of Jilin Province. Among them, Gaotaizi oil and gas reservoir is one of the key oil-bearing layers in the development and productivity construction of oil field, and it has great potential to expand the edge to build production. In order to further study, this paper makes full use of the previous research results and understanding. Combining with 3D seismic data and using the relevant theories of sequence stratigraphy, sedimentology, petroleum geology and tectonics, through comprehensive analysis of seismic, logging, and core data in the Dalaoyefu area of Jilin Province, The geological characteristics of the Gaotaizi reservoir in the Dariyiefu area have been studied. Based on the existing data, this paper studies the distribution of geological features in the area. First of all, based on the tectonic evolution characteristics of Songliao Basin, the structural and fault characteristics are studied. According to the lithology, the cyclicity of lithofacies change and the combination characteristics reflected in the shape of the electric survey curve, the structure and fault characteristics are studied. According to the evolution of regional sedimentary strata, the target interval is divided into one long-term cycle, four medium-term base-level cycles and 11 short-term datum cycles. With the composite records as a bridge, the fine calibration of the layers is carried out, and the tectonic interpretation of the four sand formations and the 11 sub-layers of each sand formation are completed. A suitable 3-D velocity field is established by using time-depth relationship and structural maps are obtained. On the basis of structural maps and seismic data, structural characteristics and fault characteristics of the target zone in the study area are analyzed. The tectonic evolution of the target formation in the study area follows the tectonic evolution background of Songliao Basin. The basin has undergone four stages of evolution and formed a unique sedimentary stratigraphy and sequence framework. The whole structure is an anticline structure with good inheritance and favorable trap conditions. The fault is mainly distributed in the marginal area and is not developed within the fornix. Secondly, combined with the background of sedimentary environment in the study area, the single well and the combined well facies model were established, and the sedimentary facies diagram was drawn in combination with the attribute characteristics to study the sedimentary geological characteristics. The sandstone distribution of each sand formation in Gaotaizi reservoir is stable. The sedimentary characteristics belong to delta sedimentary facies. Thirdly, based on the core drilling data and the distribution of sand body, the physical characteristics of the reservoir in Gaotaizi reservoir are analyzed and summarized. Finally, based on the combination of source, reservoir and caprock assemblage and oil / water distribution, the study of reservoir formation law is carried out, the oil and gas accumulation model in the study area is established, the reservoir type is analyzed, and favorable exploration targets are selected. In this paper, the geological characteristics of Gaotaizi reservoir are deeply studied, and the reservoir dynamics are analyzed, and the favorable zones are accurately predicted. It can also provide technical support for well pattern infilling adjustment and further reservoir evaluation in old oil area.
【學(xué)位授予單位】：東北石油大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：P618.13

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相關(guān)期刊論文 前1條

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本文編號：2174558