發(fā)布時(shí)間：2018-02-02 20:11

  本文關(guān)鍵詞： 低滲透 儲層特征 儲層改造 壓裂工藝 適用性 效果評價(jià)　出處：《西安石油大學(xué)》2016年碩士論文　論文類型：學(xué)位論文

【摘要】：壓裂技術(shù)自從應(yīng)用于油田生產(chǎn)之后,使得油田的產(chǎn)量有了很明顯的提升,尤其對于低滲透區(qū)塊的油田,效果尤為明顯。但是,由于各個(gè)地層地質(zhì)結(jié)構(gòu)的復(fù)雜性,以及現(xiàn)有壓裂技術(shù)的多樣性發(fā)展,使得各個(gè)地區(qū)的壓裂,有著自己的獨(dú)特性,因此對于壓裂方案與壓裂目的地層適應(yīng)性的研究就顯得格外重要,直接關(guān)系到壓裂的效果。本論文對國內(nèi)外目前應(yīng)用的各項(xiàng)壓裂改造技術(shù)的調(diào)研分析,并從儲層條件、設(shè)備要求和經(jīng)濟(jì)效益方面出發(fā),對其在延長油田的適用性進(jìn)行了分析。對研究區(qū)域的壓裂地質(zhì)特征進(jìn)行了研究和認(rèn)識。收集、整理、統(tǒng)計(jì)了吳起、永寧、定邊、靖邊、直羅、子北6個(gè)區(qū)塊長6、長2儲層壓裂改造井所有與壓裂工藝適應(yīng)性研究有關(guān)的各種儲層資料,為壓裂工藝評價(jià)提供參數(shù)依據(jù)。對目前已有的吳起、永寧、定邊、靖邊、直羅、子北6個(gè)區(qū)塊共計(jì)886口壓裂改造井的壓裂施工資料、試油資料、生產(chǎn)動態(tài)數(shù)據(jù)等按照儲層分類情況分別進(jìn)行整理、統(tǒng)計(jì)、分析。主要研究了儲層電性參數(shù)之間、物性參數(shù)與試油產(chǎn)量之間、壓裂參數(shù)與試油產(chǎn)量之間的關(guān)系。開展了壓裂工藝的適應(yīng)性研究。重點(diǎn)研究了目前壓裂工藝條件下的裂縫擴(kuò)展規(guī)律,并分析了其地質(zhì)適用性。在特低滲儲層中,主要從提高儲層縱向改造程度、裂縫穿透深度和裂縫導(dǎo)流能力三個(gè)方面,提出了相應(yīng)的技術(shù)方案;在底水儲層中,以避免壓裂過程溝通水層為主要目標(biāo),提出了兩個(gè)工藝方案。
[Abstract]:Since its application in oilfield production, fracturing technology has significantly improved the production of oil fields, especially in low-permeability oil fields. However, because of the complexity of each formation geological structure. As well as the diversity of existing fracturing technology, fracturing in each region has its own unique, so it is particularly important to study the adaptability of fracturing plan and fracturing destination layer. This paper investigates and analyzes the fracturing technology applied at home and abroad, and starts from reservoir conditions, equipment requirements and economic benefits. Its applicability in Yanchang Oilfield is analyzed. The fracturing geological characteristics in the study area are studied and recognized. Wu Qi, Yongning, Dingbian, Jingbian and Zhiluo are collected, sorted and counted. All kinds of reservoir data related to the study on the adaptability of fracturing technology in the fracturing revamping wells of 6 blocks in Zibei, Chang6 and Chang2 reservoirs, which provide parameter basis for the evaluation of fracturing technology, are available to Wuqi, Yongning and Dingbian. The fracturing operation data, oil test data and production performance data of 886 fracturing wells in Jingbian, Zhiluo and Zibei blocks are sorted out according to reservoir classification, and statistics are made. Analysis. Mainly studied between the reservoir electrical parameters, between the physical parameters and production test. The relationship between fracturing parameters and oil test production. The adaptability study of fracturing technology is carried out. The fracture propagation law under the current fracturing technology condition is studied emphatically, and its geological applicability is analyzed in the ultra-low permeability reservoir. The corresponding technical scheme is put forward mainly from three aspects: improving the degree of reservoir longitudinal reconstruction, fracture penetration depth and fracture diversion ability. In bottom water reservoir, two technology schemes are put forward to avoid fracturing process to communicate water layer.
【學(xué)位授予單位】：西安石油大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2016
【分類號】：TE357

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