本文選題：河間南區(qū) + 構(gòu)造解釋　； 參考：《長江大學(xué)》2015年碩士論文

【摘要】：本文以饒陽凹陷河間南地區(qū)為例,在三維地震資料精細(xì)構(gòu)造解釋的基礎(chǔ)上,進(jìn)行井一震結(jié)合構(gòu)造解釋和斷層的研究工作,并結(jié)合鉆井、 油田發(fā)動態(tài)資料、地震反演的結(jié)果,最終對目標(biāo)區(qū)進(jìn)行圈閉評價與儲層預(yù)測研究,圈定有利區(qū)塊,提出鉆探井位。饒陽凹陷位于冀中坳陷東部,東起獻(xiàn)縣凸起,西至高陽低凸起,南接深縣凹陷,北接霸縣凹陷,是冀中探區(qū)油氣富集、勘探潛力大的富油凹陷。本文研究工區(qū)位于饒陽凹陷中部,北鄰八里莊潛山油田、南接留北油田,西隔河間西洼槽接肅寧油田。東西寬8km,南北長12km,面積約100km2。該地區(qū)第三系共發(fā)現(xiàn)四套含油層系：Nm、Ng、Ed、Es2,其Ed為主要含油層系,Nm、Es：具備一定的滾動勘探潛力。首先,本文以勘探地震學(xué)、構(gòu)造地質(zhì)學(xué)理論為指導(dǎo),運(yùn)用自動追蹤、多線聯(lián)合、合成記錄標(biāo)定、水平切片、相干體以及速度場建立技術(shù)等一系列精細(xì)構(gòu)造解釋技術(shù),在詳細(xì)研究工區(qū)內(nèi)測井、鉆井、地震資料的基礎(chǔ)上,對研究區(qū)內(nèi)100km2三維地震資料進(jìn)行全區(qū)地震解釋,運(yùn)用先進(jìn)技術(shù)和方法落實(shí)構(gòu)造、精確斷層位置,完成各標(biāo)志層精細(xì)構(gòu)造圖。其次,本文以儲層地質(zhì)學(xué)、地震沉積學(xué)為理論指導(dǎo),重點(diǎn)結(jié)合地震屬性分析技術(shù),對研究區(qū)進(jìn)行成藏規(guī)律研究,明確各油藏的供油斷層、油氣運(yùn)移方式及剩余油分布規(guī)律。該工區(qū)由于受河間主斷層的控制,西側(cè)形成了河間主生油洼槽,大斷層下降盤形成了河間東營組逆牽引背斜構(gòu)造,大斷層上升盤形成了河間潛山、馬851潛山等多個構(gòu)造和潛山。其特定的地質(zhì)條件形成了多套含油層系,該區(qū)是一個具有多套含油層系的復(fù)式油氣聚集帶。最后,在構(gòu)造、儲層研究的基礎(chǔ)上,根據(jù)其配置關(guān)系,結(jié)合油氣富集特點(diǎn),發(fā)現(xiàn)和落實(shí)圈閉24個,并對重點(diǎn)圈閉進(jìn)行了描述和評價。通過論文的開展,最后認(rèn)為：(1)河間斷層控制了本區(qū)油氣的分布,深淺層油藏圍繞河間斷層分布,館陶、明化鎮(zhèn)油層的分布與河間西斷層有主要關(guān)系。有利目標(biāo)及剩余油潛力應(yīng)該圍繞河間斷層周圍開展研究。河間地區(qū)是一個復(fù)式油氣聚集帶,存在基巖潛山油藏、沙二+三段砂巖油藏、東營組油藏、館陶組油藏及明化鎮(zhèn)含油層。遠(yuǎn)離河間斷層的以東地區(qū),由于缺乏生油層和油源斷層,潛山及第三系圈閉均未成藏。(2)河間主斷層斷距較大,斷層上下兩盤的地層厚度和產(chǎn)狀差別都較大,因此,河間主斷層兩側(cè)的速度橫向變化較大。在河間主斷層下降盤,地層層序較全,地層的厚度橫向變化不大,速度相對穩(wěn)定。在河間主斷層上升盤,由于缺失東營組地層和沙一段上部地層,同時由于地層厚度在橫向上的變化也較大,從而導(dǎo)致速度在橫向上的變化也較大。在進(jìn)行速度研究時,在不同的區(qū)塊采用不同的方法求取地層速度,分區(qū)塊建立速度場。最后把得到的速度場進(jìn)行合并,實(shí)踐表明這種方法能很好的還原地下真實(shí)構(gòu)造形態(tài),準(zhǔn)確找到構(gòu)造高點(diǎn)。
[Abstract]:Based on the fine structural interpretation of 3D seismic data, this paper takes the South Hegan area of Raoyang Sag as an example to study the combination of well and earthquake structure interpretation and fault, combined with drilling, oil field dynamic data, and seismic inversion results.Finally, the trap evaluation and reservoir prediction of the target area are carried out, the favorable blocks are delineated, and the drilling well location is put forward.Raoyang sag is located in the eastern part of Jizhong depression, Xianxian uplift in the east, Gaoyang low uplift in the west, Shenxian depression in the south and Baxian sag in the north. It is an oil-rich depression with great exploration potential in the exploration area of Jizhong.The research area is located in the middle of Raoyang Sag, bordering Balizhuang buried Hill Oil Field in the north, Liubei Oilfield in the south, and Suning Oilfield in Xiwa trough in Xianhejian.East and west 8 km wide, north and south 12 km long, the area is about 100 km2 2.Four sets of oil-bearing strata, one of which were found in the Tertiary system in this area, were found to have the potential for rolling exploration. Their Ed is the main oil-bearing series.First of all, guided by the theory of exploration seismology and tectonic geology, a series of fine structural interpretation techniques, such as automatic tracing, multi-line association, synthetic record calibration, horizontal slice, coherent volume and velocity field establishment, are used in this paper.Based on the detailed study of the testing wells, drilling and seismic data in the working area, the seismic interpretation of 100km2 3D seismic data in the study area is carried out, the structure is implemented by advanced techniques and methods, the location of faults is accurate, and the fine structural maps of each marker layer are completed.Secondly, under the guidance of reservoir geology and seismic sedimentology, combined with seismic attribute analysis technology, this paper studies the reservoir formation law in the study area, and makes clear the oil supply fault, oil migration mode and remaining oil distribution law of each reservoir.Under the control of the main fault in Hejian, the main oil generating depression was formed on the west side, the descending plate of the big fault formed the reverse traction anticline structure of the Dongying formation in Hejian, and the rising face of the big fault formed several structures and buried hills, such as buried hill in Hejian and buried hill in Ma 851.Several sets of oil-bearing strata have been formed in the specific geological conditions, and this area is a complex oil-gas accumulation zone with multiple sets of oil-bearing strata.Finally, on the basis of research on structure and reservoir, according to its configuration relationship, combined with the characteristics of oil and gas enrichment, 24 traps are discovered and implemented, and the key traps are described and evaluated.Through the development of the paper, it is concluded that the distribution of oil and gas in this area is controlled by the fault between the river and the river, and the distribution of deep and shallow reservoir around the fault between the river, Guantao and Minghuazhen is mainly related to the fault in the west of Hegan.Favorable targets and residual oil potential should be studied around the interriver fault.Hejian area is a compound oil and gas accumulation zone with bedrock buried-hill reservoir, sandstone reservoir of the third member of Sha 2, Dongying formation, Guantao formation and oil bearing layer of Minghuazhen.Far from the east of the Hejian fault, because of the lack of oil source fault and oil source fault, the buried hill and the third system trap have not formed reservoir. 2) the fault interval of the main fault in Hejian is larger, and the formation thickness and occurrence of the upper and lower sides of the fault are different greatly, therefore, the formation thickness and occurrence of the upper and lower sides of the fault are quite different.The lateral variation of velocity on both sides of the main fault in Hejian is great.In the downplane of the main fault in Hejian, the stratigraphic sequence is relatively complete, the thickness of the stratum is not changed transversely, and the velocity is relatively stable.Due to the absence of the Dongying formation and the upper part of the Shayi formation in the main fault of Hejian, the lateral variation of the formation thickness is also large, which leads to the great variation of the velocity in the transverse direction.In the research of velocity, different methods are used to calculate formation velocity in different blocks, and velocity fields are established in different blocks.Finally, the velocity field is combined, and the practice shows that this method can restore the real structure and find the high point of the structure.
【學(xué)位授予單位】：長江大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：P618.13;P631.44

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