【摘要】：內蒙地區(qū)強1塊構造上位于彰武盆地七家子洼陷的東北部。經過歷年勘探,在凹陷北部長北背斜帶獲取較大的成果,在“下洼找油”的勘探思路指導下,再次開始對南部地區(qū)的研究工作,改變以往注重尋找高部位構造圈閉的工作方式,深入到洼陷中尋找有利的沉積相帶。經過認真地分析認為:七家子洼陷沙海組暗色泥巖發(fā)育,具有一定程度的生油能力,且儲集條件優(yōu)良,在此洼陷構造落實的強參1東塊部署強1井,在沙海組下段獲得工業(yè)油流。因此全面拉開了內蒙古地區(qū)張強南部新一輪勘探研究的新篇章。通過對強1塊地震、鉆井、錄井、取心、分析化驗資料的分析整理,綜合評價構造特征、油氣水分布特征、油藏類型、流體性質、沉積特征、儲層特征、溫度系統、壓力、滲流物理特征和試油試采試注分析等綜合地質特征,精細刻畫地質體,搞清開采特性,編制開發(fā)方案,明確了本塊的開發(fā)原則、開發(fā)方式、井網、井距、注水方式、注采壓力系統和合理壓力水平等開發(fā)指標。獲取以下成果和認知:1、油藏特征認識。在空間上,研究地域單井厚度、油層分布變化迅速,平面上觀測,強1區(qū)塊油層分布中南北斷塊有較大地不同,北塊(強5塊)以Ⅱ油組為主,Ⅰ油組受砂體展布與物性控制影響,所以分布受限;南塊(強1-4塊)Ⅰ、Ⅱ油組均較發(fā)育;縱向上觀測,油層主要集中在沙海組下段煤層上下200m范圍內,油層段位相對集中。因為主要受到砂體及物性的雙重控制影響,歸納屬于構造—巖性油藏。2、油藏工程設計。結合此區(qū)的油藏綜合地質特征、試油試注試采分析等方面的研究,確立開發(fā)方式、開發(fā)原則、井網、井距、注水方式、注采壓力系統及合理壓力水平等詳細開發(fā)的指標。3、儲層特征研究。綜合考慮完善的分析化驗、系統取心的資料,對儲層礦物的沉積特征、孔隙結構、巖石學特征、物性等儲層特征的研究,充分評價沙海組儲層特征。4、注采井別方案設計。在油藏地質特性的研究及油藏工程設計的基礎上,精確定位油層富集區(qū)域,明確合理的注采井網,整體部署,實現高質量合理的開發(fā)。5、開發(fā)指標預測。對開發(fā)前期試油、試采的資料進行分析和論證,考慮平面上的產能不同,合理確定單井初期產量及遞減率,準確地預測開發(fā)各項指標。通過對油藏進行綜合地質特征的研究及試油試采試注詳細的分析,精細描述刻畫地質體,搞清開采的特性,編制完備的開發(fā)方案,實現高效合理開發(fā)的目的。其研究思路及技術方法對其它區(qū)域的相類似油藏開發(fā)研究具有積極的借鑒意義。
[Abstract]:The Qiang1 block in Inner Mongolia is located in the northeast of Qijiazi depression in Zhangwu Basin. After many years of exploration, under the guidance of the exploration idea of "Xiwa looking for oil", the research work in the southern region was started again, which changed the working mode of paying attention to the search for structural traps in the high position in the north of the sag, and obtained great achievements in the Changbei anticline belt of the north of the sag. Go deep into the sag to find favorable sedimentary facies. Through careful analysis, it is considered that dark mudstone of Shahai formation in Qijiazi sag has developed, has certain degree of oil generation ability, and the reservoir conditions are good. The Qiangshen 1 East Block, which is implemented in this sag structure, is deployed in Qiangshen 1 well. Industrial oil flow was obtained in the lower member of Shahai formation. Therefore opened the Inner Mongolia region Zhang Qiang south a new round of exploration research a new chapter. Through the analysis and arrangement of seismic, drilling, logging, coring and analysis of laboratory data, the structural characteristics, oil, gas and water distribution, reservoir types, fluid properties, sedimentary characteristics, reservoir characteristics, temperature system, pressure are comprehensively evaluated. The physical characteristics of percolation and the comprehensive geological characteristics such as oil test and production test and injection analysis, the detailed description of geological bodies, the clear understanding of exploitation characteristics, the compilation of development plans, the clear development principles, development methods, well pattern, well spacing, water injection mode of this block, Development indicators such as injection-production pressure system and reasonable pressure level. Obtain the following results and cognition: 1, knowledge of reservoir characteristics. In space, the thickness of single well in the study area, the distribution of oil layer changes rapidly, observed on the plane, the distribution of north and south fault blocks in Qiang1 block is quite different, and the north block (Qiang5 block) is dominated by oil group 鈪，

本文編號：2233608