本文關(guān)鍵詞： 油田污水 水質(zhì)處理技術(shù) 層次分析法 技術(shù)選擇 技術(shù)評(píng)價(jià)　出處：《昆明理工大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

【摘要】：近年來,隨著在原油生產(chǎn)過程中油田污水對(duì)環(huán)境的污染越來越嚴(yán)重,并且在我國政府對(duì)環(huán)境保護(hù)工作高度重視的背景下,使得對(duì)油田污水的處理變的尤為重要。本論文旨在針對(duì)D油田所下屬的CY含油污水生化處理站的污水處理技術(shù)來展開全面研究,CY含油污水生化處理站是D油田的環(huán)保重點(diǎn)項(xiàng)目,日處理污水能力三萬立方米,也是D油田最大的工業(yè)污水處理站。目前D油田開采已經(jīng)進(jìn)入三次采油階段,為了更好地提高采油效率,D油田同現(xiàn)階段大部分油田的選擇一樣,通過聚合物三元復(fù)合體系驅(qū)油技術(shù)進(jìn)行原油開采。然而大量的采用三元復(fù)合驅(qū)油技術(shù)使得采油產(chǎn)出水中含有大量的、復(fù)雜的高分子聚合物,極大地增加了污水的處理難度。此外,隨著D油田驅(qū)油用水量的增大,污水量也劇增,這就更加增大了污水的處理難度。隨著國家環(huán)保法規(guī)制度的日益嚴(yán)格,目前CY含油污水生化處理站的污水處理技術(shù)已經(jīng)不適合當(dāng)前環(huán)境保護(hù)和油田生產(chǎn)的需要。針對(duì)D油田的污水現(xiàn)狀,深入有效地開展高含聚物污水水質(zhì)處理技術(shù)的研究就顯得極為重要。本論文便是根據(jù)D油田的實(shí)際情況,首先通過互聯(lián)網(wǎng)、圖書館以及相關(guān)科研機(jī)構(gòu)等多種渠道,搜集并查閱了大量關(guān)于油田污水處理技術(shù)的方案、方法和法規(guī)等資料。然后通過研究國內(nèi)外油田污水處理技術(shù)的相關(guān)資料,歸納出各種技術(shù)的原理及優(yōu)缺點(diǎn)。結(jié)合實(shí)地調(diào)查得出的CY含油污水生化處理站的污水特點(diǎn),將所查閱的資料中與之相關(guān)的技術(shù)逐個(gè)羅列出來。最后綜合考慮CY含油污水生化處理站的污水現(xiàn)狀及各種油田污水處理技術(shù)的特點(diǎn),從而明確評(píng)價(jià)指標(biāo)體系的特點(diǎn),選擇出適宜的評(píng)價(jià)方法。本論文運(yùn)用層次分析法,對(duì)CY含油污水生化處理站的可選污水處理技術(shù)進(jìn)行分析優(yōu)選,篩選出最優(yōu)的污水處理技術(shù)。在層次分析法的分析篩選中,以CY含油污水生化處理站當(dāng)前污水處理最適合的三種技術(shù)設(shè)為方案層；把實(shí)現(xiàn)CY含油污水生化處理站的污水達(dá)標(biāo)排放作為目標(biāo)層；把三種方案的技術(shù)要求、經(jīng)濟(jì)要求、環(huán)境要求、政策要求作為的目標(biāo)評(píng)價(jià)層,建立層次模型,再構(gòu)造判斷矩陣,根據(jù)矩陣中各因素標(biāo)度值來計(jì)算其比重,最后通過層次總排序計(jì)算出三種水處理技術(shù)的優(yōu)先順序,得到評(píng)價(jià)結(jié)果。根據(jù)評(píng)價(jià)結(jié)果,最終選擇MBBR強(qiáng)化生物處理技術(shù)作為CY含油污水生化處理站的污水處理技術(shù)并成功進(jìn)行了現(xiàn)場(chǎng)試驗(yàn),為CY含油污水生化處理站的污水處理技術(shù)的選擇提供理論依據(jù)。
[Abstract]:In recent years, along with the oil field sewage pollution to the environment more and more serious in the crude oil production process, and under the background that our country government attaches great importance to the environmental protection work. It is very important to treat oilfield wastewater. This paper aims to carry out a comprehensive study on wastewater treatment technology of CY oily sewage biochemical treatment station in D Oilfield. CY oil-bearing wastewater biochemistry treatment station is the key item of D oilfield environmental protection, the daily sewage treatment capacity is 30,000 cubic meters, it is also the largest industrial sewage treatment station in D oilfield. At present, D oilfield production has entered the stage of three oil recovery. In order to improve the oil recovery efficiency, the D oil field is the same as most of the oil fields at the present stage. Crude oil is produced by polymer ternary system flooding technology. However, a large number of ASP flooding technology makes oil production water contain a large number of complex polymer. It greatly increases the difficulty of sewage treatment. In addition, with the increase of flooding water consumption in D oilfield, the sewage water volume also increases dramatically, which increases the difficulty of sewage treatment. With the increasingly strict national environmental protection laws and regulations. At present, the wastewater treatment technology of CY oil-bearing wastewater biochemical treatment station is not suitable for the current environmental protection and the needs of oilfield production. It is very important to carry out deep and effective research on water quality treatment technology of high polymer wastewater. This paper is based on the actual situation of D oilfield, first through the Internet. Libraries and related scientific research institutions and other channels, collected and consulted a large number of oilfield sewage treatment technology programs. Methods and regulations. Then through the study of domestic and foreign oilfield sewage treatment technology related data. The principle, advantages and disadvantages of various technologies are summarized. Combined with field investigation, the sewage characteristics of CY oily wastewater biochemical treatment station are obtained. The related technologies are listed one by one. Finally, the wastewater status of CY oily wastewater biochemistry treatment station and the characteristics of various oilfield wastewater treatment technologies are considered synthetically. In order to determine the characteristics of the evaluation index system and select the appropriate evaluation method. This paper uses the analytic hierarchy process to analyze and select the optional sewage treatment technology of the CY oil wastewater biochemical treatment station. In the analysis and screening of analytic hierarchy process (AHP), the three most suitable technologies for wastewater treatment in CY oily wastewater biochemistry treatment station are selected as the scheme layer. The target layer is to realize the standard discharge of CY oily sewage biochemical treatment station. The technical requirements, economic requirements, environmental requirements and policy requirements of the three schemes are taken as the objective evaluation layer, the hierarchical model is established, the judgment matrix is constructed, and its proportion is calculated according to the scale value of each factor in the matrix. Finally, the priority order of three kinds of water treatment technology is calculated by hierarchical total ranking, and the evaluation results are obtained, according to the evaluation results. Finally, the MBBR enhanced biological treatment technology was selected as the wastewater treatment technology of CY oil wastewater biochemical treatment station and the field test was carried out successfully. It provides a theoretical basis for the selection of wastewater treatment technology in CY oil wastewater biochemical treatment station.
【學(xué)位授予單位】：昆明理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：X741

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本文編號(hào)：1464700