【摘要】：岔河集造帶位于霸縣凹陷的西部,牛駝鎮(zhèn)凸起的西部,主要發(fā)育北東向和北西向兩組方向的斷裂,鉆遇的地層從下到上依次為古近系孔店組、沙河街組、東營(yíng)組、新近系館陶組、明化鎮(zhèn)組、第四系平原組地層。本論文以多學(xué)科理論為指導(dǎo),采用宏觀與微觀相結(jié)合的方法,以巖心觀察與描述為基礎(chǔ),結(jié)合巖心、古生物等分析化驗(yàn)資料,參考區(qū)域地震相及測(cè)井相響應(yīng)特征對(duì)研究區(qū)東三段地層展開沉積相研究。取得了如下認(rèn)識(shí)： 1)根據(jù)標(biāo)志層和沉積旋回,將岔河集構(gòu)造帶東營(yíng)組地層自下而上劃分東三段、東二段、東一段,其中東三段地層自下而上進(jìn)一步劃分Ed3Ⅳ、Ed3Ⅲ、Ed3Ⅱ和Ed3I四個(gè)油層組。 2)根據(jù)巖性、沉積構(gòu)造、顆粒結(jié)構(gòu)、古生物特征、測(cè)井相分析,在單井沉積微相分析的基礎(chǔ)上,研究區(qū)為淺水三角洲和湖泊相沉積體系,其中以淺水三角洲相沉積為主,并可進(jìn)一步劃分淺水三角洲平原亞相、水三角洲前緣亞相和三角洲前緣亞相,其中三洲平原亞相可細(xì)分為分流河道、分流間灣和天然堤微相,三角洲前緣亞相可細(xì)分為水下分流河道、水下分流間灣、水下天然堤、分流河口壩、砂壩和泥灘等微相。 3)根據(jù)重礦物組合及分布、巖石成分、砂巖分布等資料分析,認(rèn)為工區(qū)內(nèi)主要沉積物源來(lái)自于西部,岔北區(qū)塊存在來(lái)自北面的物源,岔南區(qū)塊南部存在來(lái)自西南方向的次級(jí)物源。 4)通過工區(qū)內(nèi)不同沉積微相儲(chǔ)集物性特征的研究,認(rèn)為(水下)分流河道微相儲(chǔ)層物性最好,多為中孔中滲儲(chǔ)層；砂壩儲(chǔ)集性能相對(duì)較好,多為中孔低滲儲(chǔ)層；天然堤、水下天然堤砂體儲(chǔ)集性能較差,多為低孔低滲儲(chǔ)層；分流間灣微相多是特低孔特低滲砂體。根據(jù)不同沉積微相儲(chǔ)集物性特征并結(jié)合試油資料,認(rèn)為三角洲分流河道砂體屬于高產(chǎn)能區(qū),遠(yuǎn)砂壩、河口壩和曲流河邊灘相儲(chǔ)層屬于較高產(chǎn)能區(qū),天然堤屬于低產(chǎn)能區(qū)。
[Abstract]:The Cha Heji belt is located in the western part of the Baxian depression and the western part of Niu Humu Town uplift. It mainly develops faults in the direction of NNE and NW, and the strata encountered in the drill are Paleogene Kongdian formation, Shahejie formation and Dongying formation from the bottom to the top. Neogene Guantao formation, Minghuazhen formation and Quaternary plain formation. Under the guidance of multi-disciplinary theory, this paper adopts the method of combining macro and micro, based on core observation and description, combined with core, paleontological and other analytical data. According to the response characteristics of seismic facies and logging facies, the depositional facies of the third member of the eastern part of the study area are studied. The results are as follows: 1) according to the marker layer and sedimentary cycle, the Dongying formation of the Cha Heji structural belt is divided from the bottom to the top into the east third member, the eastern second member and the east first member. The three formations in the Middle East are further divided into four formations, Ed3 鈪，

本文編號(hào)：2255790