本文選題：含油污泥調(diào)剖　切入點(diǎn)：污泥來(lái)源　出處：《西安石油大學(xué)》2015年碩士論文

【摘要】：油田生產(chǎn)廢棄物是油田開(kāi)發(fā)和儲(chǔ)運(yùn)過(guò)程中產(chǎn)生的主要污染物之一,含油污泥和污染土壤得不到及時(shí)的處理,將會(huì)對(duì)開(kāi)發(fā)生產(chǎn)區(qū)域環(huán)境造成不同程度的影響。隨著國(guó)家對(duì)環(huán)保要求的越來(lái)越嚴(yán)格,含油土壤及含油污泥的無(wú)害化、減量化、資源化處理技術(shù)將成為油田廢棄物處理技術(shù)發(fā)展的必然趨勢(shì)。把污泥和藥劑復(fù)合配方后重新回注到地層是一舉兩得的辦法:含油污泥來(lái)自地層,又回注于地層,既處理了污泥,又具有調(diào)剖作用。本文對(duì)永寧油田長(zhǎng)6油層含油污泥復(fù)配深度調(diào)剖技術(shù)進(jìn)行了研究,對(duì)指導(dǎo)含油污泥調(diào)剖具有一定的意義。主要取得了以下認(rèn)識(shí):(1)研究區(qū)含油污泥的主要來(lái)源是①原油開(kāi)采產(chǎn)生的含油污泥,主要來(lái)源于井口、井場(chǎng)和地面處理系統(tǒng);②原油集輸過(guò)程產(chǎn)生的含油污泥,在原油的集輸過(guò)程中,原油流經(jīng)接轉(zhuǎn)站、油罐、隔油池底等設(shè)備,污水流經(jīng)沉降罐、污水罐以及含油水處理設(shè)施均會(huì)產(chǎn)生含油污泥;(2)含油污泥的主要成分為泥質(zhì)、水、油。研究區(qū)含油污泥的含水量分布在45.04%~50.03%,含油量分布在20.31%~25.42%,泥質(zhì)含量分布在為21.55%~34.65%;(3)通過(guò)室內(nèi)實(shí)驗(yàn)確定合適的懸浮劑、分散劑種類(lèi)及固相顆粒的大小、濃度。最終我們確定的含油污泥調(diào)剖劑體系為90%含油污泥體系,其中懸浮劑0.10%~0.20%;M分散劑0.15%~2%;10%弱凝膠體系。(4)所配置的含油污泥調(diào)剖劑具有良好的耐溫、耐剪切、熱穩(wěn)定性,溫度由20℃度增加到100℃,凝膠的粘度保留率依舊可以達(dá)到87.5%,凝膠具有良好的耐溫特性;凝膠在65℃條件下保存60d后,粘度保留率依舊可以達(dá)到77.3%,具有良好的熱穩(wěn)定性;在剪切速率達(dá)到100 S-1時(shí),粘度保留依舊可以達(dá)到84.6%,表現(xiàn)出較好的抗剪切能力。(5)所配置的含油污泥調(diào)剖劑具有良好的封堵性。含油污泥調(diào)剖劑對(duì)巖心的封堵率達(dá)到了86.4%~96.4%,且對(duì)滲透率較低的巖心的封堵率小于滲透率較高的巖心,突破壓力均在9Mpa以上,也表明了配制的含油污泥調(diào)剖劑對(duì)儲(chǔ)層具有較好的封堵作用。(6)所配置的含油污泥調(diào)剖劑具有良好的選擇性進(jìn)入能力。隨著調(diào)剖劑注入量的增加,其進(jìn)入儲(chǔ)層的阻力系數(shù)增加。但進(jìn)入低滲透儲(chǔ)層的阻力系數(shù)是高滲透儲(chǔ)層的55倍左右。因此,污泥調(diào)剖劑基本上選擇性進(jìn)入了高滲透帶。
[Abstract]:Waste oil production is one of the main pollutants in oilfield development and production process of storage, oily sludge and contaminated soil can not get timely treatment, will cause different effects on the development and production of regional environment. With the national environmental protection requirements of more and more strict, harmless, oil containing soil and oily sludge reduction, resources processing technology will become the inevitable trend of the development of oil field waste treatment technology. The sludge and chemical compound after re injected into the stratum is the way: oily sludge from shooting two birds with one stone formation, and into the ground, can not only dispose the sludge, but also has the profile control effect. This paper made a research on Yongning oilfield Chang 6 reservoir of oily sludge compound depth profile control technology, it has certain significance in oily sludge profile. The conclusions are as follows: (1) the main source of the study area is the crude oil sludge Oily sludge produced by mining, mainly from the wellhead, well site and ground treatment system; crude oil in oily sludge produced in the process of transportation, in crude oil gathering and transportation process, crude oil flows through the transfer station, oil tank, oil separation tank bottom equipment, sewage flows through the sedimentation tank, sewage tank and oily water treatment facilities will produce oil sludge; (2) the main component of oily sludge is muddy, water and oil. The study area of oily sludge moisture distribution in 45.04%~50.03%, the oil content distribution in 20.31%~25.42%, mud content distribution in 21.55%~34.65%; (3) through the indoor experiment to determine the appropriate suspending agent, dispersing agent and solid particle size. The concentration of system. Oily sludge profile control agent and eventually we defined 90% oily sludge system, the suspension of 0.10%~0.20% M 0.15%~2% 10%; dispersant; weak gel system. (4) the configuration of the oily sludge profile control agent has good resistance to high temperature. Shear, thermal stability, temperature increasing from 20 degrees to 100 degrees C, the gel viscosity retention rate can still reach 87.5%, the gel has good heat resistant properties; gel preservation of 60d under the condition of 65 DEG C, the viscosity retention rate can still reach 77.3%, with good thermal stability; shear rate reached 100 in S-1 still, the viscosity retention can reach 84.6%, showing good shear resistance. (5) oily sludge profile control agent configuration has good sealing. Oily sludge plugging agent on the core rate reached 86.4%~96.4%, and the sealing of the low permeability core was less than high permeability core, breakthrough the pressure is above 9Mpa, also shows that the oily sludge profile control agent has good plugging effect on reservoir. (6) oily sludge profile control agent configuration has good selectivity into ability. With the increasing of injection profile control agent In addition, the drag coefficient of reservoir entering reservoir increased. However, the drag coefficient of low permeability reservoir was 55 times higher than that of high permeability reservoir. Therefore, sludge profile control agent basically entered the high permeability zone.

【學(xué)位授予單位】：西安石油大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類(lèi)號(hào)】：TE357

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本文編號(hào)：1714400