本文選題：海坨子地區(qū) + 水平井��； 參考：《東北石油大學(xué)》2015年碩士論文

【摘要】：因水平井采油時(shí)具有較小生產(chǎn)壓差和較大泄油面積等特點(diǎn),如今已成為開(kāi)發(fā)新油田、挖潛老油田以及提高采收率的重要采油技術(shù)。水平井采油還可控制含水上升速度、使油井產(chǎn)液量提高,因此在低滲透儲(chǔ)層的開(kāi)發(fā)中越來(lái)越受到重視。本文針對(duì)海坨子地區(qū)在水平井鉆井時(shí)存在的諸多困難,對(duì)海坨子地區(qū)開(kāi)展了防塌防漏的水平井鉆井液技術(shù)研究,論文圍繞水平井鉆井順利施工和提高油井產(chǎn)能這一中心緊密開(kāi)展,對(duì)海坨子地區(qū)嫩江組、姚家組、青山口組和泉頭組等地層巖屑粘土礦物分析、理化性能分析以及井壁穩(wěn)定性研究,得出海坨子地區(qū)上部蒙脫石含量高,屬于中等水化膨脹地層,中下部地層伊蒙混層含量高,層理裂縫發(fā)育,屬于硬脆性泥頁(yè)巖地層,遇水易分散,鉆井液沿微裂縫進(jìn)入地層內(nèi)部,形成較厚的水化膜,產(chǎn)生較大的水化斥力,從而導(dǎo)致地層極易掉塊垮塌,總體表現(xiàn)為弱/中膨脹中強(qiáng)分散易垮塌地層;并形成了海坨子地區(qū)井壁穩(wěn)定性剖面,為海坨子地區(qū)防塌防漏鉆井液技術(shù)研究提供詳實(shí)、系統(tǒng)的基礎(chǔ)數(shù)據(jù)。實(shí)現(xiàn)海坨子地區(qū)水平井安全、快速鉆進(jìn),有效節(jié)約鉆井成本,提高單井產(chǎn)能和儲(chǔ)層開(kāi)發(fā)效果。
[Abstract]:Due to the characteristics of small production pressure difference and large oil discharge area in horizontal wells, it has become an important oil recovery technology to develop new oil fields, tap potential old oil fields and improve oil recovery. Horizontal well oil recovery can also control the water cut rising speed, so that the oil well liquid production increased, so in the development of low permeability reservoir, more and more attention is paid to it. Aiming at the difficulties existing in horizontal well drilling in Haituozi area, this paper studies the drilling fluid technology of horizontal well in Haituozi area. Focusing on the center of horizontal well drilling and improving well productivity, the paper analyzes the formation debris clay minerals of Nenjiang formation, Yao Jia formation, Qingshankou formation and Quantou formation in Haituozi area, such as the formation of Nenjiang formation, the Yao formation, the Qingshankou formation and the Quantou formation. Physical and chemical properties analysis and wellbore stability study show that the upper part of the Tuozi area has a high content of montmorillonite, which belongs to the medium hydrated swelling formation, and the middle and lower strata of the middle and lower strata contain a high content of emonium-mixed layer, and the bedding fractures are developed, so it belongs to the hard and brittle shale formation. When the water is easily dispersed, the drilling fluid enters the formation along the micro-fracture and forms a thicker hydration film, resulting in a large hydration repulsion force, which leads to the formation collapsing easily, and the overall performance is weak / moderate expansion, medium and strong dispersion and easy collapse. The stability profile of wellbore in Haituozi area is formed, which provides detailed and systematic basic data for the study of sloughing and leakproof drilling fluid technology in Haituozi area. The horizontal well in Haituozi area can be safely drilled quickly, the drilling cost can be saved effectively, and the productivity of single well and the effect of reservoir development can be improved.
【學(xué)位授予單位】：東北石油大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TE254

【參考文獻(xiàn)】

相關(guān)期刊論文 前1條

1 甄劍武;王中華;雷祖猛;楊建軍;趙虎;楊勇;;水平井鉆井液及儲(chǔ)層保護(hù)[J];油田化學(xué);2010年04期

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本文編號(hào)：2000668