【摘要】：南海南部北康盆地發(fā)育大量的生物礁,蘊藏豐富的油氣資源。文章基于北康盆地高精度地震數(shù)據(jù)及鉆井數(shù)據(jù)的研究表明,北康盆地的生物礁成像較好、類型齊全,有點礁、臺地邊緣礁、塊狀礁、層狀礁、塔礁、環(huán)礁共6類型。其發(fā)育演化可以分為4個階段,分別為早中新世的初始發(fā)育階段、中中新世早期的繁盛階段、中中新世晚期的衰退階段和晚中新世的淹沒階段。古近紀及早中新世的斷裂活動產(chǎn)生了大量的構造高點,為生物礁的初始發(fā)育創(chuàng)造了條件,而中中新世以來基底快速沉降導致的相對海平面的快速上升決定了生物礁主要發(fā)育于中中新世時期,而晚中新世以來相對海平面持續(xù)上升,致使生物礁退積到隆起頂部,從而進入淹沒階段。北康盆地的生物礁數(shù)量多、規(guī)模大,而且很少受后期成巖作用的二次改造,具備優(yōu)質(zhì)儲層形成的前提。同時,區(qū)域烴源巖、疏導體系、蓋層及生物礁的分布等油氣地質(zhì)條件,決定了中部隆起西部和東部隆起東部是北康盆地今后生物礁油氣勘探的重點區(qū)域。
[Abstract]:A large number of reefs are developed in the Beikang Basin in the south of the South China Sea, with abundant oil and gas resources. Based on the high precision seismic data and drilling data of Beikang Basin, it is shown that the bioreefs in Beikang Basin have better imaging, complete types and a bit of reefs, and there are 6 types of reef in the platform margin, block reef, layered reef, tower reef and atoll. Its development and evolution can be divided into four stages: the initial development stage of early Miocene, the prosperous stage of early Miocene, the recession stage of late Miocene and the submergence stage of late Miocene. The early Miocene fault activity in Paleogene resulted in a large number of tectonic highs, which created conditions for the initial development of reefs. The rapid rise of the relative sea level caused by the rapid subsidence of the basement since Miocene determined that the reefs mainly developed in the Miocene period, while the relative sea level rose continuously since the late Miocene, which resulted in the reef retreating to the top of the uplift. Thus entering the stage of inundation. The reef in Beikang Basin is abundant in quantity and large in scale, and rarely remade by late diagenesis, so it has the premise of high quality reservoir formation. At the same time, the oil and gas geological conditions, such as regional source rock, dredging system, caprock and reef distribution, determine that the western part of the central uplift and the eastern part of the eastern uplift are the key areas for oil and gas exploration of the reef in Beikang Basin in the future.
【作者單位】： 廣州海洋地質(zhì)調(diào)查局國土資源部海底礦產(chǎn)資源重點實驗室中國地質(zhì)調(diào)查局海洋石油天然氣地質(zhì)研究中心;
【基金】：國土資源部海底礦產(chǎn)資源重點實驗室開放基金(KLMMR-2017-A-14) 中國地質(zhì)調(diào)查局項目(DD20160155)聯(lián)合資助~~
【分類號】：P618.13

【相似文獻】

相關期刊論文 前10條

1 范嘉松;古代生物礁研究中的若干問題,兼論我國西南地區(qū)二疊系生物礁的類型[J];石油與天然氣地質(zhì);1988年01期

2 張廷山,高衛(wèi)東,藍光志;系統(tǒng)論在生物礁古生態(tài)研究中的應用[J];西南石油學院學報;1991年04期

3 范嘉松,吳亞生;我國生物礁研究中的問題及發(fā)展方向[J];石油與天然氣地質(zhì);1992年04期

4 顧家裕,方輝,蔣凌志;塔里木盆地奧陶系生物礁的發(fā)現(xiàn)及其意義[J];石油勘探與開發(fā);2001年04期

5 劉殊,楊繼友;一個可能的生物礁預測[J];石油物探;2004年01期

6 劉春燕;林暢松;吳茂炳;云金表;鞏固;;中國生物礁時空分布特征及其地質(zhì)意義[J];世界地質(zhì);2007年01期

7 畢長春;李聯(lián)新;梅燕;張延充;何誠;;川東長興組生物礁分布控制因素及地震識別技術[J];天然氣地球科學;2007年04期

8 金惠;趙正望;吳長江;;生物礁及我國含生物礁地層的分布[J];石油天然氣學報;2013年02期

9 戴問天;關于生物礁成礦問題的討論[J];地質(zhì)與勘探;1982年01期

10 曾鼎乾;劉炳溫;;我國西南地區(qū)二疊紀生物礁(摘要)[J];天然氣工業(yè);1984年02期

相關會議論文 前10條

1 金善q，

本文編號：2383262