本文選題：永3斷塊 + 沙河街組　； 參考：《中國石油大學(華東)》2015年碩士論文

【摘要】：東辛永3斷塊位于東營凹陷東北部,內(nèi)部被多級斷層切割復雜化,為一中高滲多油層復雜斷塊,其含油層位為沙河街組。該區(qū)主要存在斷裂發(fā)育特征與斷裂演化過程研究不系統(tǒng),斷裂形成機制認識不透徹及斷裂對油氣的控制作用不明確等問題,嚴重制約了該斷塊后續(xù)開發(fā)。本論文基于地質(zhì)、地震解釋、測井、測試等資料,物理實驗與數(shù)值模擬相結合,開展了沙河街組斷裂形態(tài)及組合樣式、斷層活動性、構造演化分析等研究,闡明了研究區(qū)斷裂特征及形成機制,揭示了斷裂對沙河街組油氣分布的影響。取得的成果及認識主要有以下方面:(1)總結出主要斷層特征及組合樣式。認為東辛永3斷塊斷裂系統(tǒng)分為近EW、NW、近SN向三組;構造樣式在剖面上表現(xiàn)為“y”字型、階梯狀、地塹—地壘式組合樣式;在平面上表現(xiàn)為雁列狀、平行狀、放射狀和斜交式組合樣式。斷裂特征和組合樣式反映了本區(qū)構造是由伸展應力和走滑剪切應力疊加產(chǎn)生。(2)闡明了主要斷層的活動特征。主干斷層活動具有分段性和分期性特征,次級斷層活動,總體傾角一般都大于60°,體現(xiàn)了走滑性質(zhì),并且隨著演化發(fā)展,走向和傾角變化多樣。(3)提出了研究區(qū)斷裂成因機制。受郯廬斷裂帶右旋剪切作用,東營凹陷區(qū)域構造應力影響及塑性泥膏層上拱共同作用,在兩期伸展、伸展—走滑和底辟上拱等多種動力機制作用下經(jīng)歷了多期構造演化,并將研究區(qū)劃分為孔店組—沙四段、沙三段—沙二下亞段、沙二上亞段—沙一段、東營組—明化鎮(zhèn)組四個構造演化階段。(4)構造物理模擬和構造應力場數(shù)值模擬正反演相結合證實了永3斷塊區(qū)在古新世—中始新世受到NNE向的伸展作用,在晚始新世—晚漸新世受到NW、NNE雙向伸展、右旋剪切及底辟上拱多期共同作用。(5)揭示了沙河街組斷裂對油氣分布的控制作用。斷層級次、活動性、斷層組合樣式控制著油氣藏的分布;高級序斷層具有較強的封閉性,能夠完全遮擋油氣的運移及擴散,低級序斷層與高級序斷層組合形成羽狀斷裂組合樣式,利于剩余油富集。
[Abstract]:Dongxinyong 3 fault block is located in the northeast of Dongying sag, which is complicated by multistage fault cutting, and is a complex fault block with middle, high permeability and multiple oil layers, and its oil-bearing horizon is Shahejie formation. There are some problems in this area, such as the lack of systematic study on the characteristics of fault development and the process of fault evolution, the lack of thorough understanding of fault formation mechanism and the unclear control of fault on oil and gas, etc., which seriously restrict the subsequent development of the fault block. Based on the data of geology, seismic interpretation, logging, testing, physical experiments and numerical simulation, this paper has carried out the research of Shahejie formation fault morphology and combination style, fault activity, structural evolution analysis, and so on. The characteristics and formation mechanism of faults in the study area are expounded, and the influence of faults on the distribution of oil and gas in Shahejie formation is revealed. The main achievements and understandings are as follows: (1) the main fault features and combination patterns are summarized. It is considered that the fault system of the Dongxinyong 3 fault block is divided into three groups: near EWN NW, near SN direction, and the structural styles are y, ladder, graben and crustal assemblage in the section, and geese and parallel in the plane. Radial and oblique combinations. The fault characteristics and combination patterns reflect that the structure in this area is formed by the superposition of extensional stress and strike-slip shear stress. (2) the active characteristics of the main faults are clarified. The main fault activity is segmented and staged. The secondary fault activity, the total dip angle is generally greater than 60 擄, which reflects the strike-slip property, and with the development of evolution, the variation of strike and dip angle is various. (3) the mechanism of fault genesis in the study area is put forward. Under the action of dextral shear in the Tanlu fault zone, regional tectonic stress in Dongying sag and the interaction of the plastic mud layer arch, the tectonic evolution has undergone many periods under the action of two stages of extension, extension-strike-slip and diapir arch, etc. The study area is divided into three parts: kongdian formation-sha 4 member, sha 3 member-sha 2 lower submember, and sha 2 upper submember-sha 1 member The four tectonic evolution stages of Dongying formation and Minghuazhen formation are as follows: (4) the combination of tectonic physical simulation and numerical simulation of tectonic stress field proves that the Yong3 fault block area was extended in NNE direction in Paleocene and Miocene. During the late Eocene to the late Oligocene, NWN NNE extended in both directions, dextral shear and diapir arch combined. (5) the controlling effect of Shahejie formation fault on oil and gas distribution was revealed. The distribution of oil and gas reservoirs is controlled by fault order, activity and fault combination style, and the high order fault has strong sealing property, which can completely block the migration and diffusion of oil and gas. The combination of low order fault and high order fault forms plume fault assemblage style, which is favorable for remaining oil enrichment.
【學位授予單位】：中國石油大學(華東)
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：P618.13

【參考文獻】

相關期刊論文 前10條

1 王淑萍;徐守余;董春梅;王麗萍;;東營凹陷北帶沙四下亞段深層砂礫巖儲層儲集空間特征及成因機制[J];天然氣地球科學;2014年08期

2 束寧凱;;永安鎮(zhèn)油田永3-1斷塊沙二段5—6砂層組河控三角洲前緣沉積模式[J];油氣地質(zhì)與采收率;2014年02期

3 盧虎勝;林承焰;程奇;張憲國;;東營凹陷永安鎮(zhèn)油田沙二段三角洲相儲層構型及剩余油分布[J];東北石油大學學報;2013年03期

4 王端平;楊勇;許堅;丁可新;;復雜斷塊油藏立體開發(fā)技術[J];油氣地質(zhì)與采收率;2011年05期

5 田宜平;劉雄;李星;魏民;;構造應力場三維數(shù)值模擬的有限單元法[J];地球科學(中國地質(zhì)大學學報);2011年02期

6 楊勇;;東營凹陷永安鎮(zhèn)油田永3斷塊沙二段進積三角洲沉積體系[J];油氣地質(zhì)與采收率;2009年02期

7 王勇;鐘建華;馬鋒;魚宏珍;;濟陽坳陷陡坡帶深層砂礫巖體次生孔隙成因機制探討[J];地質(zhì)學報;2008年08期

8 周建勛;周建生;;渤海灣盆地新生代構造變形機制：物理模擬和討論[J];中國科學.D輯:地球科學;2006年06期

9 張軍華;呂寧;田連玉;陸文志;鐘磊;;地震資料去噪方法技術綜合評述[J];地球物理學進展;2006年02期

10 張進鐸;;地震解釋技術現(xiàn)狀及發(fā)展趨勢[J];地球物理學進展;2006年02期

相關博士學位論文 前2條

1 張林;濟陽坳陷變換構造及其油氣地質(zhì)意義[D];中國石油大學（華東）;2012年

2 唐其升;東營凹陷斷裂系統(tǒng)與中央構造帶形成機制[D];浙江大學;2008年

相關碩士學位論文 前2條

1 梁剛;永新地區(qū)斷裂系統(tǒng)與成藏關系研究[D];中國石油大學;2010年

2 陳強;高郵凹陷西部地區(qū)構造應力場及對構造的控制作用研究[D];中國石油大學;2009年

，

本文編號：2072371