【摘要】：中國渤海海域已經(jīng)進入勘探與開發(fā)的發(fā)展重要階段,為了增加產(chǎn)量,降低鉆井投入,很多區(qū)塊的開發(fā)工作需要鉆水平井、多底井。在鉆探的過程中,為了不鉆或少鉆領(lǐng)眼,準確、快速的完成鉆井任務(wù),現(xiàn)場的井眼軌跡實時地質(zhì)跟蹤技術(shù)將起到關(guān)鍵的作用。有效的、成熟的地質(zhì)實時跟蹤技術(shù)可以確保鉆井任務(wù)的順利完成,確保井眼軌跡符合設(shè)計要求。B油田是渤海海域內(nèi)第四大油田,該油田發(fā)現(xiàn)的油層主要在明化鎮(zhèn)下段,為正常的溫度、壓力系統(tǒng),海拔在1650~1850米深。巖性特征為一套泥巖與砂巖的不等厚互層,砂巖單層厚度2~20m不等。為了有效的增大產(chǎn)出,降低成本,設(shè)計在該油田開發(fā)過程中將鉆探多口水平井(及多底井),按照設(shè)計每口井均需要鉆領(lǐng)眼。目前國際石油行業(yè)中,水平井(及多底井)已經(jīng)是一種相當成熟的技術(shù)。本文分析和研究出一套針對B油田地質(zhì)情況的井眼軌跡實時地質(zhì)跟蹤技術(shù),可以保證該油田水平井(及多底井)的成功鉆探,以達到少鉆或不鉆領(lǐng)眼的目的,在以后的勘探與開發(fā)過程中做到少投入、多產(chǎn)出。
[Abstract]:The Bohai Sea area in China has entered an important stage of exploration and development. In order to increase production and reduce drilling investment, horizontal wells and multi-bottom wells are required for the development of many blocks. In the process of drilling, in order to complete the drilling task accurately and quickly, the real-time geological tracking technology will play a key role. Effective and mature geological real-time tracking technology can ensure the smooth completion of drilling tasks and ensure that wellbore trajectory meets the design requirements. Oil field .B is the fourth largest oil field in the Bohai Sea area. The reservoir found in the oilfield is mainly in the lower section of Minghua Town. For normal temperature, pressure system, elevation at 1650m 1850 m. The lithology is characterized by a set of interbedded layers between mudstone and sandstone, and the thickness of single layer of sandstone varies from 2m to 20m. In order to increase the output effectively and reduce the cost, it is designed to drill multiple horizontal wells (and multi-bottom wells) in the development process of the oilfield, and each well needs to be drilled according to the design. At present, horizontal well (and multi-bottom well) is a very mature technology in international petroleum industry. In this paper, a set of real-time geological tracking techniques for borehole trajectory in B oilfield are analyzed and studied, which can ensure the successful drilling of horizontal wells (and multi-bottom wells) in this oil field, so as to achieve the goal of less drilling or no drilling. In the later exploration and development process to do less input, more output.
【學位授予單位】：東北石油大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TE52

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本文編號：2250120