天堂国产午夜亚洲专区-少妇人妻综合久久蜜臀-国产成人户外露出视频在线-国产91传媒一区二区三区

當(dāng)前位置:主頁(yè) > 科技論文 > 地質(zhì)論文 >

伊拉克哈勒法耶油田白堊系Mishrif組碳酸鹽巖儲(chǔ)層成因及分布評(píng)價(jià)

發(fā)布時(shí)間:2018-08-08 11:21
【摘要】:伊拉克哈勒法耶油田是以生物碎屑灰?guī)r為主的巨型油田,Mishrif組是最主要的產(chǎn)油層位,沉積厚度大,發(fā)育灘相和非灘相兩類儲(chǔ)層,兩類儲(chǔ)層成因不同,儲(chǔ)集性能有明顯差異。綜合利用巖石薄片觀察、掃描電鏡、陰極發(fā)光、碳氧同位素、物性測(cè)試等技術(shù)資料對(duì)巖石學(xué)特征、沉積特征、成巖作用及儲(chǔ)層特征進(jìn)行研究,明確儲(chǔ)層發(fā)育控制因素,在此基礎(chǔ)上開展灘相和非灘相儲(chǔ)層成因類型研究,提出Mishrif組儲(chǔ)層成因類型劃分方案。根據(jù)不同成因類型儲(chǔ)層物性和孔隙結(jié)構(gòu)特征的差異開展不同成因類型儲(chǔ)層分類評(píng)價(jià)研究,將灘相儲(chǔ)層劃分為四類,非灘相儲(chǔ)層劃分為三類。同時(shí),在單井儲(chǔ)層分布基礎(chǔ)上,綜合考慮沉積微相類型、儲(chǔ)層成因類型和有效儲(chǔ)層厚度等地質(zhì)因素,開展Mishrif組優(yōu)質(zhì)儲(chǔ)層平面分布評(píng)價(jià)研究。Mishrif組發(fā)育在一個(gè)二級(jí)層序內(nèi),可進(jìn)一步劃分為2個(gè)三級(jí)層序和4個(gè)四級(jí)層序,Mishrif組層序地層發(fā)育主要受海平面變化控制,橫向?qū)有驅(qū)Ρ刃院、展布穩(wěn)定,該組含油層在海侵體系域和高位體系域均有發(fā)育。研究區(qū)碳酸鹽巖時(shí)代較新、生物繁盛,根據(jù)鄧哈姆分類的支撐類型分為顆;?guī)r和泥晶灰?guī)r兩大類,依據(jù)沉積水動(dòng)力條件的差異將顆;?guī)r分為生屑/砂屑灰?guī)r和有孔蟲灰?guī)r,以生屑/砂屑、有孔蟲骨架和泥晶基質(zhì)為三個(gè)端元將研究區(qū)巖石類型分為生屑/砂屑灰?guī)r、有孔蟲灰?guī)r和泥晶灰?guī)r三大類,進(jìn)一步結(jié)合顆粒含量的多少細(xì)分為6小類,共計(jì)9種巖石類型,并對(duì)不同巖石特征進(jìn)行了研究,同時(shí)在巖性測(cè)井識(shí)別的基礎(chǔ)上開展不同巖性的分布特征,其中生屑/砂屑灰?guī)r類在Mishrif組分布廣泛,其中MB2段是整個(gè)Mishrif組生屑/砂屑灰?guī)r分布最為集中的層段,厚度約50m;泥晶灰?guī)r主要分布在MB1段,以薄層狀分布在生屑/砂屑灰?guī)r之間。Mishrif組發(fā)育在碳酸鹽臺(tái)地背景下,通過(guò)對(duì)沉積特征的研究表明發(fā)育局限臺(tái)地、開闊臺(tái)地和臺(tái)地邊緣三種沉積亞相。局限臺(tái)地發(fā)育生屑灘和臺(tái)內(nèi)洼地兩類微相,生屑灘與灰泥呈頻繁互層狀分布,局部可見少量搬運(yùn)改造后的生物碎屑,臺(tái)內(nèi)洼地和緩坡相以泥晶灰?guī)r沉積為主,優(yōu)質(zhì)儲(chǔ)層不發(fā)育。開闊臺(tái)地發(fā)育灘間和臺(tái)內(nèi)生屑灘沉積,沉積水動(dòng)力條件比局限臺(tái)地生屑灘強(qiáng)。臺(tái)地邊緣發(fā)育多種沉積微相及其組合,其中介屑灘+灘間+厚殼蛤碎屑灘+生屑灘+厚殼蛤碎屑灘組合儲(chǔ)集性能最好。Mishrif組發(fā)育灘相和非灘相兩類儲(chǔ)層,灘相儲(chǔ)層主要發(fā)育在臺(tái)地邊緣和開闊臺(tái)地相,儲(chǔ)集巖類包括介屑灰?guī)r、厚殼蛤碎屑灰?guī)r、砂屑灰?guī)r、生屑泥;?guī)r、生屑粒泥灰?guī)r等。儲(chǔ)集空間以粒間孔和鑄?诪橹,發(fā)育多種孔隙組合類型,其中生物格架孔僅在厚殼蛤碎屑灘儲(chǔ)層段發(fā)育。灘相儲(chǔ)層孔隙度、滲透率較高,屬高孔、中-高滲儲(chǔ)層。孔隙結(jié)構(gòu)發(fā)育大喉道與小喉道兩類,大喉道占比少但卻對(duì)滲透率起控制作用,滲透率最高達(dá)到765×10-3μm2。非灘相儲(chǔ)層主要發(fā)育在局限臺(tái)地相,儲(chǔ)集巖顆粒較細(xì),孔隙類型組合以體腔孔、溶孔和鑄?诪橹,孔隙度1.67%~25.35%,平均15%,滲透率0.01×10-3μm2~72.14×10-3μm2,平均8.47×10-3μm2,為中高孔、中低滲儲(chǔ)層,孔喉分布以中等喉道為主,約占比65%。Mishrif組層間隔夾層厚度較大、橫向分布較穩(wěn)定、區(qū)域連續(xù)性好;層內(nèi)隔夾層普遍厚度較小,連續(xù)性差?偟膩(lái)說(shuō),Mishrif組儲(chǔ)層表現(xiàn)出層內(nèi)較弱、層間稍強(qiáng)的非均質(zhì)性特征。通過(guò)對(duì)Mishrif組儲(chǔ)層特征的研究,認(rèn)為沉積相是控制研究區(qū)碳酸鹽儲(chǔ)層的根本因素(成巖作用主要為同生期的溶蝕作用和少量的膠結(jié)作用,其也受控于沉積相)。在儲(chǔ)層特征及主控因素研究基礎(chǔ)上,提出Mishrif組不同儲(chǔ)層成因類型劃分方案:根據(jù)沉積微相、巖石類型和優(yōu)勢(shì)孔隙類型組合的差異,將研究區(qū)灘相儲(chǔ)層分為臺(tái)緣灘儲(chǔ)層和臺(tái)內(nèi)灘儲(chǔ)層,其中臺(tái)緣灘儲(chǔ)層包括砂屑灰?guī)r儲(chǔ)層、似球;?guī)r儲(chǔ)層、介屑灰?guī)r儲(chǔ)層、厚殼蛤碎屑灰?guī)r儲(chǔ)層及生屑灰?guī)r儲(chǔ)層;臺(tái)內(nèi)灘主要為生屑顆粒成分復(fù)合的灰?guī)r儲(chǔ)層,共計(jì)2大類、4小類成因類型;通過(guò)對(duì)非灘相儲(chǔ)層特征研究及成因分析,結(jié)合巖石類型及優(yōu)勢(shì)孔隙類型將非灘相儲(chǔ)層劃分為2類、3小類成因類型,其中臺(tái)緣斜坡、灘間(洼)地的生屑有孔蟲粒泥灰?guī)r相、緩坡及臺(tái)洼中的有孔蟲灰?guī)r相和有孔蟲泥晶灰?guī)r相為較好的儲(chǔ)層。在儲(chǔ)層成因類型研究基礎(chǔ)之上,結(jié)合不同成因類型儲(chǔ)層物性和孔隙結(jié)構(gòu)特征,將灘相儲(chǔ)層劃分為Ⅰ、Ⅱ類,其中Ⅰ類儲(chǔ)層為臺(tái)緣灘相發(fā)育帶,在MB2段最為發(fā)育,特別是在介屑灘、厚殼蛤碎屑灘和砂屑灘發(fā)育部位;灘相Ⅱ類儲(chǔ)層為似球粒灘、臺(tái)內(nèi)灘,在MA、MB2和MC1段均有發(fā)育,分布最廣;將非灘相儲(chǔ)層劃分為Ⅱ、Ⅲ類,其中Ⅱ類儲(chǔ)層主要發(fā)育在MB1下段局部生屑灘和臺(tái)緣斜坡、灘間(洼)地的生屑有孔蟲粒泥灰?guī)r相發(fā)育部位;Ⅲ類儲(chǔ)層主要為緩坡及臺(tái)洼中的有孔蟲灰?guī)r相和有孔蟲泥晶灰?guī)r相發(fā)育部位,非灘相Ⅳ類為非儲(chǔ)層,主要發(fā)育在緩坡、臺(tái)洼相,整體厚度較薄,巖性以泥晶灰?guī)r為主,含少量致密粒泥灰?guī)r。通過(guò)單井儲(chǔ)層分布和儲(chǔ)層平面分布研究認(rèn)為優(yōu)質(zhì)儲(chǔ)層為灘相I+II類儲(chǔ)層和非灘相II類儲(chǔ)層,主要發(fā)育在生屑灘、粒屑灘相灰?guī)r及有孔蟲發(fā)育的非灘相灰?guī)r區(qū)。
[Abstract]:The Hale Faye oilfield in Iraq is a giant oil field mainly with bioclastic limestone. The Mishrif group is the most important oil producing layer, with large thickness of deposit and two types of reservoirs with developed beach and non shoal facies. The formation of two types of reservoirs is different and the reservoir performance is different. On the basis of the study of petrological characteristics, sedimentary characteristics, diagenesis and reservoir characteristics, the control factors of reservoir development are clearly defined. On this basis, the genetic types of the shoal and non shoal facies are studied, and the classification scheme of the formation types of the Mishrif formation is put forward. The differences in the characteristics of reservoir physical properties and pore structure of different genetic types are also proposed. In the study of different types of reservoir classification and evaluation, the shoal facies are divided into four types, and the non shoal reservoirs are divided into three types. At the same time, on the basis of the distribution of single well reservoir, the type of sedimentary microfacies, the reservoir genesis type and the effective reservoir thickness are considered, and the evaluation of the.Mishrif group of the high quality reservoir plane distribution in the Mishrif group is carried out. It is developed in a two order sequence, which can be further divided into 2 three order sequences and 4 four order sequences. The sequence stratigraphic development of group Mishrif is mainly controlled by sea level change, the transversal sequence contrast is good and the distribution is stable. According to Dunham classification, the support types are divided into two major categories: granular limestone and muddy limestone. According to the difference of the hydrodynamic conditions, the grained limestone is divided into raw chip / sand clastic limestone and foraminifera limestone, and three endpoints, including the raw debris / sand debris, the foraminifera skeleton and the mud crystal matrix, are divided into the raw debris / sand clastic limestone and the foraminifera limestone. Three types of muddy limestone, which are further combined with the number of particles in 6 small categories, are divided into 9 types of rock, and the characteristics of different rocks are studied. At the same time, the distribution characteristics of different lithology are carried out on the basis of lithologic logging recognition. Among them, the debris / dust limestone is widely distributed in the Mishrif group, and the MB2 section is the whole Mishrif group. The most concentrated layer of clump / clastic limestone is about 50m, and the muddy limestone is mainly distributed in the MB1 section, and the.Mishrif group between the clump and the clastic limestone is developed under the background of the carbonate platform. By the study of the sedimentary characteristics, three sedimentary subfacies in the limited platform, the open platform and the edge of the platform are found. There are two types of microfacies in the developmental and platform depressions, and the slime and plaster are frequently interbedded, and a small amount of reformed bioclasts can be seen, and the low-lying and gentle slope facies are mainly composed of muddy limestone deposits, and the high quality reservoirs are not developed. A variety of sedimentary microfacies and their assemblages are developed on the edge of the platform. Among them, the combination of the chip beach + interbank + thick shell clam clastic beach + raw clam clam clam clam flats is the best.Mishrif formation and non shoal facies, and the beach facies reservoirs are mainly developed at the edge of the platform and the open platform facies, and the reservoir rocks include the mesoporous limestone and the thick clam. Clastic limestone, sand clastic rock, bioclastic limestones and bioclastic marl, and so on. The reservoir space is mainly composed of intergranular pore and mold hole, and many kinds of pore combination are developed. Among them, the biogrid hole is developed only in the clam clam reservoir section of thick clam. The porosity and permeability of the reservoir are high, and the pore structure is high and medium high permeability reservoir. The pore structure develops large throat and the pore structure is developed with large throat and large throat. There are two types of small larynx. The large throat is less than the permeability, but the permeability is controlled by the permeability. The permeability is up to 765 x 10-3 mu m2., the reservoir is mainly developed in the limited platform facies, the reservoir rock particles are fine, the pore type is composed of the body cavity, the porosity and the mold hole are mainly, the porosity is 1.67%~ 25.35%, the average is 15%, and the permeability is 0.01 * 10-3, m2~72.14 * 10-3 Mu m2, The average 8.47 x 10-3 Mu M2 is medium and low permeability reservoir, and the pore throat distribution is mainly medium throat. The thickness of the interval interlayer of the 65%.Mishrif group is larger, the transverse distribution is more stable, the continuity of the region is good, the thickness of the interlayer is small and the continuity is poor. In general, the reservoir of the Mishrif group shows a weak layer in the layer and a slight heterogeneity between the layers. Through the study of the reservoir characteristics of the Mishrif group, it is considered that the sedimentary facies are the fundamental factors to control the carbonate reservoirs in the study area (the Cheng Yan action is mainly the dissolution of the same period and a small amount of cementation, and it is also controlled by the sedimentary facies). On the basis of the reservoir characteristics and the main controlling factors, the genetic types of different reservoirs in the Mishrif group are put forward. Division scheme: according to the difference of sedimentary microfacies, rock types and the combination of dominant pore types, the study area is divided into the platform margin reservoir and the platform inner beach reservoir, in which the platform margin reservoir includes the sand clastic reservoir, the pellet limestone reservoir, the mesoporous limestone reservoir, the clam clastic limestone reservoir and the clastic limestone reservoir, and the main platform of the platform is the flat beach. There are 2 types of limestone reservoirs composed of the composition of raw debris particles, and 4 small types of genetic types. Through the study on the characteristics of the non shoal facies and the genetic analysis, the non shoal facies are divided into 2 types and 3 types of genetic types, including the rock types and the dominant pore types, including the platform margin slope and the interbank (depression) area of the grain marl facies, the gentle slope and the platform depression. The foraminifera limestone and foraminifera mudstone facies are good reservoirs. On the basis of the genetic types of reservoir formation and the characteristics of reservoir physical properties and pore structure of different genetic types, the shoal facies are divided into type I and class II, among which, the type I reservoir is the platform margin Development Zone, and the most developed in the MB2 section, especially in the mesoporous beach and thick clam. The formation of clastic beach and sand flats; the type II reservoir of the shoal facies is like pellet beach, and the inner beach is developed and distributed most widely in MA, MB2 and MC1 segments; the non Shoal Reservoir is divided into II and III, of which the second kind of reservoir is mainly developed in the local crumb and edge slope of the lower MB1 segment, and the development part of the pellet marl facies in the interbank (depression); The reservoir is mainly the foraminifera limestone and the foraminifera muddy facies development parts in the gentle slope and the platform, the non shoal type IV is non reservoir, which mainly develops in the gentle slope, the platform depression is thin, the lithology is mainly composed of muddy limestone and contains a small amount of dense grained marl. It is a type I+II reservoir of beach facies and a type II reservoir of non-beach facies, mainly developed in the non-beach facies limestone areas of bioclastic beach, granular beach facies limestone and foraminifera.
【學(xué)位授予單位】:成都理工大學(xué)
【學(xué)位級(jí)別】:博士
【學(xué)位授予年份】:2016
【分類號(hào)】:P618.13

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 王玉璽;劉波;李揚(yáng);高計(jì)縣;劉建強(qiáng);田澤普;;伊拉克北Rumaila油田白堊系Mishrif組碳酸鹽巖儲(chǔ)層特征與測(cè)井分類識(shí)別[J];測(cè)井技術(shù);2015年05期

2 姜均偉;朱宇清;徐星;趙玉宏;薛永杰;胡友良;;伊拉克H油田碳酸鹽巖儲(chǔ)層的孔隙結(jié)構(gòu)特征及其對(duì)電阻的影響[J];地球物理學(xué)進(jìn)展;2015年01期

3 馬永生;蔡勛育;趙培榮;;元壩氣田長(zhǎng)興組—飛仙關(guān)組礁灘相儲(chǔ)層特征和形成機(jī)理[J];石油學(xué)報(bào);2014年06期

4 邊海光;田作基;童曉光;吳義平;潘校華;;伊拉克哈法亞油田可采儲(chǔ)量增長(zhǎng)因素和潛力分析[J];新疆石油地質(zhì);2014年04期

5 姜航;龐雄奇;施和生;朱俊章;白靜;施洋;高陽(yáng);;基于毛細(xì)管力的有效儲(chǔ)層物性下限判別[J];地質(zhì)論評(píng);2014年04期

6 韓海英;穆龍新;郭睿;趙麗敏;蘇海洋;;伊拉克艾哈代布油田白堊系生物碎屑灰?guī)r儲(chǔ)集層特征及主控因素[J];海相油氣地質(zhì);2014年02期

7 金振奎;邵冠銘;;石灰?guī)r分類新方案[J];新疆石油地質(zhì);2014年02期

8 周家勝;田昌炳;張為民;王釗;;利用鍶同位素比值評(píng)價(jià)魯邁拉油田儲(chǔ)集層連通性[J];新疆石油地質(zhì);2014年02期

9 趙文智;沈安江;周進(jìn)高;王小芳;陸俊明;;礁灘儲(chǔ)集層類型、特征、成因及勘探意義——以塔里木和四川盆地為例[J];石油勘探與開發(fā);2014年03期

10 郭睿;伏美燕;趙麗敏;段天向;韓海英;黃婷婷;孫藏軍;;艾哈代布油田Khasib組沉積相及其對(duì)儲(chǔ)層發(fā)育的控制[J];礦物巖石;2014年01期

相關(guān)博士學(xué)位論文 前1條

1 馬文辛;伊拉克MA油田白堊系森諾曼—土侖階碳酸鹽巖儲(chǔ)層特征及形成機(jī)理[D];成都理工大學(xué);2014年

相關(guān)碩士學(xué)位論文 前2條

1 曹亮;伊拉克A油田Asmari組沉積特征研究[D];西南石油大學(xué);2015年

2 蒲杰;Halfaya油田碳酸鹽儲(chǔ)層沉積特征評(píng)價(jià)及儲(chǔ)層預(yù)測(cè)研究[D];西南石油大學(xué);2014年



本文編號(hào):2171632

資料下載
論文發(fā)表

本文鏈接:http://www.sikaile.net/kejilunwen/diqiudizhi/2171632.html


Copyright(c)文論論文網(wǎng)All Rights Reserved | 網(wǎng)站地圖 |

版權(quán)申明:資料由用戶158ca***提供,本站僅收錄摘要或目錄,作者需要?jiǎng)h除請(qǐng)E-mail郵箱bigeng88@qq.com