本文選題：富油凹陷 + 古壓力��； 參考：《中國(guó)礦業(yè)大學(xué)學(xué)報(bào)》2017年03期

【摘要】：為了明確富油凹陷洼槽區(qū)古壓力演化特征,以冀中坳陷饒陽(yáng)凹陷為研究對(duì)象,運(yùn)用錄測(cè)井、試油等資料,在現(xiàn)今地層壓力研究的基礎(chǔ)上,采用盆地模擬技術(shù)與流體包裹體測(cè)溫技術(shù)相結(jié)合定量恢復(fù)了不同洼槽古壓力演化過(guò)程,并探討了富油凹陷洼槽區(qū)古壓力演化的影響因素,認(rèn)為洼槽區(qū)古壓力演化經(jīng)歷了原始積累—釋放—再積累3個(gè)階段,不同階段不同洼槽古壓力演化特征差異明顯;源巖生排烴能力控制的生烴增壓作用是大規(guī)模生排烴時(shí)期(12~0 Ma)古壓力明顯增強(qiáng)的主要原因.結(jié)果表明:饒陽(yáng)凹陷洼槽區(qū)發(fā)育東營(yíng)組—沙一段和沙三段2套壓力系統(tǒng),河間、馬西與留西洼槽為上弱下強(qiáng)型,任西洼槽為下強(qiáng)上弱型,其中河間洼槽超壓強(qiáng)度最大,壓力系數(shù)可達(dá)1.58.古壓力恢復(fù)結(jié)果表明饒陽(yáng)凹陷洼槽區(qū)成藏期普遍發(fā)育超壓,最大壓力系數(shù)可達(dá)1.51,相鄰構(gòu)造帶發(fā)育弱超壓,最大壓力系數(shù)為1.29.洼槽區(qū)沉積充填特征決定了不同層系的巖性、厚度與沉積速率等特性,影響了欠壓實(shí)增壓機(jī)制對(duì)超壓的貢獻(xiàn)大小;大規(guī)模生排烴時(shí)期異常壓力快速積累,洼槽區(qū)古壓力變化率fVR隨生排烴量差值增大而提高,馬西洼槽fVR可達(dá)0.030 Ma-1.
[Abstract]:In order to clarify the evolution characteristics of the paleo pressure in the depression trough area of the rich oil depression, the Raoyang depression in Jizhong depression is taken as the research object. On the basis of the current stratigraphic pressure research, the basin simulation technology is combined with the fluid inclusion temperature measurement technology to quantitatively restore the evolution process of the ancient pressure in different trough. The influence factors of the evolution of ancient pressure in the depression trough area are that the evolution of the paleo pressure in the trough area has experienced 3 stages of the original accumulation release and accumulation, and the difference of the paleo pressure evolution characteristics in different stages of the different stages is obvious; the hydrocarbon generation supercharging effect of the source rock generation capacity control is obviously enhanced by the ancient pressure of the 12~0 Ma in the big gauge mode hydrocarbon generation and expulsion. The main reason is that 2 sets of pressure systems are developed in the Raoyang depression trough area of the Raoyang depression and the sands of the Dongying and the sand, the maxi and the Liu Xi depression are upper and weak, and the Ren Xi depression is the lower strength and weak type, among which the overpressure strength of the inter River trough is the largest, the pressure coefficient can reach the 1.58. paleo pressure recovery result indicating the period of the reservoir formation in the depression of the Raoyang depression. The maximum pressure coefficient can reach 1.51, the adjacent tectonic zone develops weak overpressure. The maximum pressure coefficient is the characteristics of the lithology, thickness and deposition rate of different layers in the 1.29. trough area, which affects the contribution of the uncompacted supercharging mechanism to the overpressure, and the rapid accumulation of abnormal pressure during the period of large scale hydrocarbon generation. The Paleopressure variation rate fVR in the trough area increases with the difference of hydrocarbon generation and expulsion amount, and the fVR of Maxi trough is up to 0.030 Ma-1..
【作者單位】： 中國(guó)石油大學(xué)(華東)地球科學(xué)與技術(shù)學(xué)院;中國(guó)石油華北油田勘探開(kāi)發(fā)研究院;
【基金】：國(guó)家重大科技專項(xiàng)(2016ZX05006-003) 中國(guó)石油股份公司重大科技專項(xiàng)(2014E-35) 中央高校基本科研業(yè)務(wù)費(fèi)專項(xiàng)資金項(xiàng)目(15CX06015A)
【分類號(hào)】：TE122.1

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本文編號(hào)：2093853