英買(mǎi)力氣田污水絮凝處理試驗研究

第29卷第6期石油化工應用Vol.29 No.62010年6月PETROCHEMICAL INDUSTRY APPLICATIONJune 2010英買(mǎi)力氣田污水絮凝處理試驗研究任青云',屈撐囤',劉武',晁宏洲2(1.西安石油大學(xué)化學(xué)化工學(xué)院，陜西省環(huán)境污染控制技術(shù)與儲層保護重點(diǎn)實(shí)驗室,陜西西安710065;2.中國石油塔里木油田分公司,新疆庫爾勒841000)摘要:針對英買(mǎi) 力作業(yè)區氣田采出污水礦化度高、腐蝕性強、總鐵含量高硫化物含量低、細菌含量較低、pH值低的特點(diǎn),通過(guò)研究調整pH值、除鐵劑種類(lèi)及其用量、無(wú)機和有機絮凝劑種類(lèi)及其用量以及加藥間隔時(shí)間等的研究,對英買(mǎi)力氣田污水進(jìn)行絮凝處理。結果表明:當pH值為7.5、除鐵劑加量為25 mg/L、無(wú)機絮凝劑加量為80 mg/L.有機絮凝劑加量為2.5 mg/L,有機絮凝劑與無(wú)機絮凝劑加藥間隔控制在30- 40s時(shí),處理后的污水的含鐵量、含油量.Ss含量、腐蝕速率由處理前的18.1-19.5 mg/L.54.9 -64.3 mg/L、256.3-276.9 mgL.0.0897 mm/a分別下降到0.049-0.059 mg/L.2.0~5.5 mg/L、7.2~9.6 mg/L.0.0103 mn/ao關(guān)鍵詞:氣田污水;絮凝;回注;除鐵中圖分類(lèi)號:TE99文獻標識碼:A文章編號:1673- -5285( 2010 )06 -0012-05Flocculent treatment study on yingmaili gasfieldproducted -waterREN Qingyun' ,QU Chengtun',LU Wu?,CHAO Hongzhou2(1.Key Laboratory of Shanxi Province for Entironment Pollution Control Technology &Reservoir Protection of 0ifield , College of Chemistry and Chemical Engineering, Xi 'anShiyou University, Xian Shanxi 710065 , China; 2.Terimu Oilfield Company of Petrochina,Korla Xinjiang 841000, China)Abstract: The sewage of yingmaili gasfield producted-water has hypersalinity、putrescence、high total iron conter Jlow conten of sulfides and bacteria Jower pH value. The pH, de-ironagent and amount, inorganic and organic flocculating agent and interval of agent additive wereoptimized in the yingmaili gas field -producted water, the results indicated that pH 7.5, the :additive amounts of de -iron agent 25 mg/L,inorganic flocculating agent 80 mgL organicflocculating agent 2.5 mg/L and the interval of agent additive was 30- 40 s. The quality of thetreated water was stable,and iron content dropped from 18.1~19.5 mg/L to 0.049~0.059 mg/L,ss content dropped from 256.3~276.9 mg/L to 7.2~9.6 mg/L,oil dropped from 54.9~64.3 mg/L to 2.0~5.5 mg/L, corrosion rate dropped from 0.0897 mm/a to 0.0103 mm/a, andmet the re- injection water standards of recommended injection water quality.Key words: gasfield producted- water;flocculation;reinjection;de ironing◆收稿日期:2010-04-21基金項目:陜西省"13115”科技創(chuàng )新工程項目(2009ZDKC 61);西安市創(chuàng )新支撐計劃-產(chǎn)學(xué)研合作促進(jìn)工程[CXY09013(3)]。作者簡(jiǎn)介:任青云,女,西安石油大學(xué)在讀碩士研究生,主要從事石油環(huán)境污染與控制技術(shù)方面的研究工作。第6期任青云等英買(mǎi) 力氣田污水絮凝處理試驗研究13塔里木油田英買(mǎi)力地區屬于寒武一奧陶系地層表1英買(mǎi)力氣田采出水性質(zhì)分析結果Tablel The result of quality analysis of waste water produced in碳酸鹽巖縫洞型儲層，其氣田污水具有以下特點(diǎn)"，Yingmaili gas feld礦化度高、含鐵高和腐蝕速率高,pH值低和細菌含指標結果離子種類(lèi).舍量/(mg/L)量低。對于氣田污水,國內外多采用回注方式進(jìn)行處水溫/C42-43cr96 664.5~102 912.8理,處理工藝主要是采用混凝沉降、氣浮、過(guò)濾、精細H.0CO2過(guò)濾等單元技術(shù)組合的處理流程，并使氣田污水中懸浮物含量、含油量等含量達到《氣田水回注方法》含油量<(mg/L) 54.9-64.3HCO;793-146.4Ss/(mgL)256.3-276.9Ca27 443.8-8 080.1(SY/T 6596-2004)的要求21。 在上述處理工藝中存總鐵(mg/L)18.1-19.5Mg"925.0-1 678.6在以下問(wèn)題:投加藥品劑種類(lèi)多(主要有混凝劑、殺菌劑,清洗劑.脫氧劑、阻垢劑、緩蝕劑等)而且加量Fe*