1、綏濱坳陷構造演化及東榮組成躲條件研究        【中文摘要】為了研究綏濱坳陷構造演化及成躲條件，系統(tǒng)收集了地層、構造、沉積、石油地質(zhì)資料，對野外地質(zhì)剖面資料、鉆井資料、地球物理資料和分析化驗資料進行了深進研究。通過對已有地震剖面資料的重新處理解釋，結合重新采集的地震剖面資料，對綏濱坳陷主要構造層構造圖進行了重新編制，在此基礎上對其構造和沉積相進行了重新研究，得到綏濱坳陷具二凸二凹三斜坡的構造格式，江濱、普北、軍川、松1松2等斷裂控制坳陷的構造及其沉積。利用鉆井、沉積相及分析化驗資料對東榮組暗色泥巖厚度分布進行了

2、猜測，得出東榮組暗色泥巖主要分布于坳陷中部及東部，有機質(zhì)豐度高，類型以型干酪根為主，有機質(zhì)演化已進進高過成熟程度，應以天生自然氣為主，天生石油為輔。烴源巖排油高峰約在東榮組沉積末期，大量排氣期為寶泉嶺組沉積末期。利用鉆井及沉積相資料對東榮組砂巖厚度分布進行了猜測，得出東榮組砂巖儲層厚度大，主要分布于坳陷中部及東部，但物性較差，屬于低孔低滲儲集巖。利用鉆井、測井及沉積相資料對東榮組泥巖蓋層厚度分布進行了猜測，得出東榮組泥巖蓋層厚度大，主要分布于坳陷中部及東部。綜合評價了綏濱坳陷東榮組泥巖蓋層的封閉能力，結果顯示東榮組泥巖蓋層好及差等級區(qū)域面積很小，盡大部分地區(qū)為較好中等蓋層。定義和求取了砂體輸導

3、自然氣能力評價參數(shù)，得到東榮組砂體輸導自然氣能力參數(shù)相對高值區(qū)主要分布在東部斜坡帶中部。對東榮組輸導層的油氣運移動力和運移時所碰到的阻力值進行了計算，結果表明油氣主要由南部的南大林子凹陷向東部斜坡帶運移。根據(jù)源巖，儲層，蓋層評價結果，對綏濱坳陷東榮組油氣成躲與分布的有利區(qū)進行了猜測，綏濱坳陷東榮組油成躲與分布的有利區(qū)主要分布在福興斜坡區(qū)、東部斜坡區(qū)和新房凹陷東北部，以及北部斜坡區(qū)綏D2井和福興斜坡北部綏D1井的局部地區(qū)，面積相對較小。綏濱坳陷東榮組自然氣成躲與分布的有利區(qū)主要在新房凹陷與福興斜坡區(qū)交界普陽農(nóng)場西北部、普陽農(nóng)場以東的局部地區(qū)和東部斜坡帶中部區(qū)域，面積相對較小，不利于自然氣的成躲與

4、分布。選取8個參數(shù)作為圈閉含油氣性評價參數(shù)，根據(jù)其對圈閉含油氣性的影響程度對各圈閉進行等級劃分，結果表明有14個圈閉為含油氣有利圈閉。根據(jù)含油氣有利區(qū)及有利圈閉的評價結果，確定18號、2226號圈閉為鉆探靶區(qū)。');【Abstract】 The data of geologic section in the field,well drilling, geophysics and analysis and test ofgeochemistry were deeply studied through the systematical collection of formation,str

5、ucture,sediment andthe material of petroleum geology to study tectonic evolvement and condition of oil-gas reservoirgeneration in Suibin depression.The structural contour maps of major structural layer in Suibin depressionare renewed through integrating the renewed interprete of the data of old seis

6、mic section with the newdata.Based on it,the structure and sedimentary facies were restudied.The conclusion can be drawn thatthere are 2 sags and 3 uplift in Suibin depression, Some faults control the structure and deposition ofdepression,such as JIANGBIN, PUBEI, JUNCHUAN, SONG1-SONG2 faults and so

7、on. Thethickness of dark mudstone of Dongrong formation is predicted to study the characteristic of source rock bythe use of well-drilling,sedimentary facies and data of the analysis and assay.It can be known that the darkmudstone mainly ties in the middle and east of Suibin depression,the organic m

8、atter is abundant,the type ofwhich is mainly Type, organic evolvement exent is from high to higher, generates primarily gas andsecondly oil.The peak of oil drain is at the end of Dongrong formation sediment.The peak of gas drain is atthe end of Baoquanling formation sediment. The sandstone thickness

9、 of Dongrong formation is predicted tostudy the reservoir condition by the use of well-drilling and sedimentary facies data.It can be known thatthe sandstone mainly lies in the middle and east of Suibin depression,the physical characteristic isweak,the type is belong to lower porosity and lower perm

10、eability.The thickness of mudstone caprock ispredicted to study the caprock condition by the use of well-drilling,well-logging and sedimentary faciesdata. It can be known that the mudstone mainly lies in the middle and east of Suibin depression.Thecaprock sealing ability of Dongrong formation in Sui

11、bin depression is synthetically evaluated and the resultshows there are mainly better and middle class,trace best and poor class.The ewaluation parameter of gas-transporting ability of sandstone is defined and calculated to study the characteristic of oil-gas transportionand migration of Dongrong fo

12、rmation.It can be known that the relative higher efficiency area is located inthe middle of East Slope zone in Suibin depression.The locomotivity and resistance data of oil-gasmigration are calculated to study the path of oil-gas migration of Dongrong formation.The result showsthat oil-gas migrates

13、from the Nandalinzi sag in the south to East Slope zone. Based on the evaluating resultof source rock,reservoir rock and caprock,the favorable district of oil-gas reservoir generation anddistribution of Dongrong formation in Suibin depression is predicted.The result shows that oil favorabledistrict

14、is mainly located in Fuxing slope,East slope,the northeast of Xinfang sag,locally in Well SuiD2 ofNorth slope and Well SuiDlof the north of Fuxing slope, which has small area,that gas favorable district ismainly located in the northwest of Puyang farm which is common place of Xinfang sag and Fuxing

15、slopeand the middle area of East slope zone,locally in the east of Puyang farm, which has small area and is poorto the distribution and generation of oil-gas reservoir. Eight parameter which are used as the trapevaluating parameter of oil potential are chosen to evaluated the oil potential of trap of Dongrongformation.The grades of trap are classified accord