馬嶺地區(qū)長8儲層特征及提高單井產(chǎn)能技術對策研究
本文選題:馬嶺長8 + 儲層特征。 參考:《西安石油大學》2012年碩士論文
【摘要】:近年來,按照長慶油田公司“馬嶺下面找馬嶺”的思路,采油二廠加大了三疊系下部層系的勘探評價開發(fā)力度。環(huán)305、環(huán)82井區(qū)是近三年建產(chǎn)效果較好區(qū)塊之一。馬嶺地區(qū)長8主要受西部及西南物源影響;在沉積上,與姬塬及西峰油田長8既有相似性,又有其特殊性。馬嶺地區(qū)長8主要發(fā)育長812油層,長812油層分布穩(wěn)定,連通性好,規(guī)模落實,砂體呈現(xiàn)連片趨勢。通過對近年該區(qū)探評井和產(chǎn)建井的實施效果的分析,環(huán)305-環(huán)56、環(huán)82井區(qū)、里148井區(qū)、木30井區(qū)是下步有利建產(chǎn)區(qū)。該區(qū)平面及縱向上非均質性較強,通過規(guī)模實施水平井,可提高鉆遇一類油層概率。通過優(yōu)化鉆井方式、注水時機、壓裂參數(shù)及前置酸可提高單井產(chǎn)能。從試油、試采、開發(fā)層系、開發(fā)方式、壓力保持水平及合理單產(chǎn)入手,可以實現(xiàn)長期穩(wěn)產(chǎn),提高油藏采收率。
[Abstract]:In recent years, according to the idea of "looking for Maling under Maling" in Changqing Oilfield Company, the second Plant of Oil recovery has increased the exploration, evaluation and development of the lower layer of Triassic system. Huan 305, Huan 82 well area is one of the better production areas in the last three years. Chang8 in Maling area is mainly influenced by the western and southwest provenances, and is similar to Chang8 in Jiyuan and Xifeng oil fields, and has its particularity. Chang812 oil layer is mainly developed in Maling area, and Chang812 oil layer is stable in distribution, good in connectivity, implementation in scale, and the sand body shows a continuous trend. Through the analysis of the effect of exploration and evaluation well and production well construction in this area in recent years, Huan305-Huan56, Huan82 well area, Li 148 well area and Mu30 well area are favorable production areas for the next step. The horizontal and longitudinal heterogeneity is strong in this area. The probability of drilling and meeting a class of reservoirs can be improved by implementing horizontal wells on a large scale. The single well productivity can be improved by optimizing drilling method, water injection timing, fracturing parameters and preacid. Starting with oil test, production test, development series, development mode, pressure maintenance level and reasonable unit yield, long-term stable production can be realized and oil recovery efficiency can be improved.
【學位授予單位】:西安石油大學
【學位級別】:碩士
【學位授予年份】:2012
【分類號】:P618.13;TE355
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