本文選題：蠡縣斜坡 + 沉積微相　； 參考：《東北石油大學(xué)》2017年碩士論文

【摘要】：本文針對(duì)蠡縣斜坡構(gòu)造樣式相對(duì)單一,但沉積類型多樣,變化期次多,多種類型圈閉與成藏配置關(guān)系復(fù)雜等問題,對(duì)主力含油氣層系沉積相與沉積微相進(jìn)行了研究,希望認(rèn)清冀中坳陷蠡縣斜坡富油圈閉相控影響因素,建立富油圈閉綜合評(píng)價(jià)標(biāo)準(zhǔn)。為了弄清蠡縣斜坡富油圈閉相控影響因素,本文重新厘定了蠡縣斜坡沙二段、沙三段的層序地層方案,把原認(rèn)為的沙一段尾砂巖歸為沙二段的高水位體系域,同時(shí)底部應(yīng)發(fā)育低位體系域,應(yīng)存在一套砂巖;而沙三段上部正常為高位體系域,應(yīng)以一套進(jìn)積的砂體為特征。并明確了沉積相對(duì)于砂體的控制作用,并對(duì)于油氣水關(guān)系有合理的解釋。研究認(rèn)為淺水三角洲前緣優(yōu)質(zhì)砂體利于油氣的富集。前緣相帶砂體發(fā)育,波浪改造明顯,儲(chǔ)層質(zhì)量?jī)?yōu)越,且靠近油源,具有近源儲(chǔ)層易成藏的條件。三角洲前緣分流河道與河口沙壩�？莎B加連片,形成規(guī)模較大優(yōu)質(zhì)儲(chǔ)集砂體,形成連片成藏規(guī)模。通過研究后發(fā)現(xiàn),微相邊緣是導(dǎo)致物性封閉巖性成藏的原因。各類成因砂體邊緣常常是砂體厚度變薄、含泥質(zhì)增加、儲(chǔ)集物性變差位置,這一方面制約了油氣充注的效率,一方面又形成封堵條件。尤其是受構(gòu)造影響的上傾方向發(fā)生微相變化或砂體減薄時(shí),物性封閉成藏成為可能,這是寬緩斜坡近油源上生下儲(chǔ)成藏模式中的獨(dú)特類型,是形成斜坡帶巖性油氣藏的一種重要類型。在上述研究基礎(chǔ)上,總結(jié)出了蠡縣斜四種區(qū)帶成藏模式:(1)中外帶同口-雁翎地區(qū)多源供油構(gòu)造巖性復(fù)合成藏模式;(2)高陽-西柳地區(qū)順向斷層巖性對(duì)接成藏模式;(3)雁翎-任西洼槽潛山過渡帶復(fù)式油氣聚集成藏模式;(4)斜坡中南部中、外帶低豐度多層疊加連片成藏模式。
[Abstract]:In view of the relatively single structural styles in Lixian County slope, the sedimentary facies and sedimentary microfacies of the main oil and gas bearing strata are studied in various types of sedimentary types, many types of change period and complex relationship between the various types of traps and the distribution of reservoir. It is hoped to recognize the factors affecting the phase control of the Xie Pofu oil trap in Lixian County, Jizhong depression, and establish a comprehensive oil trap synthesis. In order to understand the factors affecting the phase control of the oil rich traps in the Lixian County slope, the sequence stratigraphic scheme of the two section of the Lixian County slope and the three sand section of the sand is redefined, and the sand one tailed sandstone originally considered as the high water level system region of the two section of the sand should be classified, at the same time, the low system tract should be developed at the bottom, and a set of sandstone should exist, while the upper part of the three section of the sand is normal. The high system domain should be characterized by a set of accumulated sand bodies. The control effect of sedimentation relative to the sand body is clearly defined and the relationship between the oil and gas water is reasonably explained. The study holds that the high quality sand body in the front of the shallow water delta is beneficial to the enrichment of oil and gas. The delta front distributary channel and the estuarine sand dam are often superimposed to form a large scale and high quality reservoir sand, forming a large scale of reservoir formation. This aspect restricts the efficiency of oil and gas filling. On the one hand, the efficiency of oil and gas filling is restricted, and the sealing conditions are formed on the one hand. Especially when the upward inclination of the structure affects the micro phase change or the thinning of the sand body, it is possible for the physical property to be closed and formed. This is the unique type in the near oil source and the reservoir formation model of the wide slow slope, which is the formation of the slope zone rock. An important type of sexual oil and gas reservoir is made. On the basis of the above study, four types of reservoir forming models of Lixian County slope are summed up: (1) the multi source oil supply structural lithologic complex formation pattern in the same mouth Yanling region, and (2) the lithologic docking model of the Shun direction fault in the Gaoyang xulu area, and (3) the complex hydrocarbon accumulation and accumulation of the Yanling - Ren west depression in the transitional zone of the West Depression (4) in the middle and southern part of the slope, the low abundance and multi-storey superimposed cascade accumulation mode.
【學(xué)位授予單位】：東北石油大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：P618.13
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本文編號(hào)：1979487