本文選題：致密油　切入點：水平井　出處：《東北石油大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：與常規(guī)儲層試油工藝相比,致密儲層由于密度高、孔隙度低、滲透性差,壓裂改造規(guī)模大,施工壓力高,對井下壓裂工具及井口、地面管匯的耐溫、耐磨要求高;致密儲層濾失小,導(dǎo)致放噴周期長,排液量大。針對致密儲層這一復(fù)雜的勘探目標(biāo),壓裂技術(shù)不斷進步,相繼開發(fā)了縫網(wǎng)壓裂、轉(zhuǎn)向壓裂等技術(shù),壓裂規(guī)模也越來越大。為了與之相配套,相應(yīng)的致密儲層試油工藝技術(shù)及評價方法還存在問題,需通過科研攻關(guān)來實現(xiàn)。本文主要就致密油水平井試油工藝研究、現(xiàn)場試驗、資料錄取及評價解釋方面四項研究內(nèi)容:(1)設(shè)計了致密油平臺井多井壓裂的三通轉(zhuǎn)六通由壬壓裂裝置,優(yōu)化了深層氣井防砂、控砂的測氣地面流程,形成了致密儲層大型壓裂改造的井口及地面管匯配套技術(shù)。(2)研究形成了水平井排液求產(chǎn)地面及井下工具配套技術(shù),形成了水平井多相流自動計量技術(shù)、油水分離技術(shù)、沉降罐自動計量技術(shù),有效地解決了水平井試油施工中自動分離和精確計量的問題。(3)形成了壓后早期合理控制放噴及水平井、直井低回壓排液求產(chǎn)方法,壓后合理控制放噴,對于防止和控制地層出砂意義重大。(4)通過探索致密儲層彈性開采條件下的產(chǎn)能變化規(guī)律,形成了中長期產(chǎn)能評價兩點理論新認識、一種定產(chǎn)優(yōu)化新方法,中長期產(chǎn)能預(yù)測為試采方案制定、指導(dǎo)油田后期開發(fā)提供依據(jù)。
[Abstract]:Compared with conventional reservoir testing technology, dense reservoir has high density, low porosity, poor permeability, large scale of fracturing modification, high operation pressure, high temperature resistance and high wear resistance to downhole fracturing tools and wellhead and surface pipe. The filtration loss of tight reservoir is small, which results in long blowout period and large amount of liquid discharge. In view of the complex exploration target of tight reservoir, fracturing technology has been continuously improved, and fracturing technology has been developed successively, such as fracturing with fracture net, turning to fracturing and so on. The scale of fracturing is also getting larger and larger. In order to match it, there are still some problems in the relevant technology and evaluation method of tight reservoir oil testing, which need to be realized through scientific research. This paper mainly focuses on the research of tight oil horizontal well oil test technology, field test, Data acquisition and evaluation and interpretation four research contents: 1) designed a three-way to six-way non-nonfracturing device for multi-well fracturing of a tight oil platform well, and optimized the gas logging surface flow of deep gas wells for sand control and sand control. The matching technology of wellhead and surface pipe assembly for large-scale fracturing reconstruction in dense reservoir is formed. The technology of producing area and downhole tool for horizontal well drainage is studied, and the multi-phase flow automatic measurement technology and oil-water separation technology are formed in horizontal well. The automatic measurement technology of settling tank has effectively solved the problems of automatic separation and accurate measurement in horizontal well testing operation. In order to prevent and control formation sand production, it is of great significance to explore the law of productivity change under the condition of elastic exploitation of tight reservoir, and to form two new theories of medium and long term productivity evaluation and a new method of constant production optimization. Medium-and long-term productivity prediction provides basis for production test plan formulation and for guiding oil field later development.
【學(xué)位授予單位】：東北石油大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TE273
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本文編號：1579188