本文選題：深度調(diào)剖 + 弱凝膠��； 參考：《長(zhǎng)江大學(xué)》2015年碩士論文

【摘要】：隨著油田的注水開發(fā),我國(guó)很多油田都已處于中、高含水期開發(fā)階段,油田綜合含水達(dá)到80%以上。針對(duì)雙河油田出現(xiàn)的儲(chǔ)層非均質(zhì)性差異較大,吸水剖面不均勻,層間干擾嚴(yán)重等問題,提出了一種弱凝膠深度調(diào)剖技術(shù)。該技術(shù)可以有效的改善地層的非勻質(zhì)性,提高聚合物驅(qū)的波及效率,從而達(dá)到提高采收率的目的�，F(xiàn)場(chǎng)試驗(yàn)也證明了開展深度調(diào)剖技術(shù)對(duì)于雙河油田的“控水穩(wěn)油”,提高采收率有著重要的意義,值得重視和推廣本文根據(jù)地質(zhì)資料從室內(nèi)實(shí)驗(yàn)和理論分析等方法研究了雙河油田地層清水配污水稀釋的聚合物調(diào)剖技術(shù)。通過靜態(tài)條件下弱凝膠體系成膠時(shí)間與強(qiáng)度分析分別篩選出三種調(diào)剖劑配方：高強(qiáng)度凝膠,成膠時(shí)間為較短；中強(qiáng)度凝膠,成膠時(shí)間中等：低強(qiáng)度凝膠,成膠時(shí)間較長(zhǎng)。從以下幾方面來研究配方的影響因素：主劑濃度對(duì)凝膠時(shí)間、粘度的影響；交聯(lián)劑濃度對(duì)調(diào)剖劑成膠時(shí)間及粘度的影響；pH值對(duì)成膠時(shí)間以及成膠強(qiáng)度的影響；熱穩(wěn)定性的測(cè)定(成膠強(qiáng)度與成膠時(shí)間)；抗剪切性測(cè)定(成膠強(qiáng)度與成膠時(shí)間)等。通過對(duì)弱凝膠調(diào)剖體系的溫度、pH值、礦化度、機(jī)械剪切等影響因素的分析,得出在室內(nèi)試驗(yàn)下交聯(lián)調(diào)剖劑的性能評(píng)價(jià)。對(duì)深度調(diào)剖劑進(jìn)行室內(nèi)物模實(shí)驗(yàn)研究：實(shí)驗(yàn)室填制高、中、低滲透率的填砂管,將填砂管并聯(lián)在一起,模擬地層的非均質(zhì)性。通過注入不同濃度、不同PV數(shù)的調(diào)剖劑,在注劑及后續(xù)水驅(qū)過程中記錄并聯(lián)模型注入點(diǎn)壓力數(shù)據(jù)和各管出油及出水量數(shù)據(jù),最后進(jìn)行數(shù)據(jù)分析得出提高采收率幅度和分流率隨注入量的變化趨勢(shì)。進(jìn)行了單一聚合物調(diào)剖實(shí)驗(yàn)、不同段塞尺寸調(diào)剖實(shí)驗(yàn)以及不同配方的調(diào)剖實(shí)驗(yàn)。對(duì)實(shí)驗(yàn)結(jié)果進(jìn)行對(duì)比研究。最終得出結(jié)論：1.根據(jù)不同配方實(shí)驗(yàn)結(jié)果,篩選出三種配方體系：低強(qiáng)度配方-聚合物1000-2500mg/L,交聯(lián)劑150～200mg/L,成膠強(qiáng)度108.4-529.5mpa.s,成膠時(shí)間10天；中強(qiáng)度配方-聚合物1000-2500mg/L,交聯(lián)劑400mg/L,成膠強(qiáng)270.7-1133mpa.s,成膠時(shí)間5天；高強(qiáng)度配方-聚合物1000-2000mg/L,交聯(lián)劑600-1000mg/L,成膠強(qiáng)度1100-2380.7mpa.s,成膠時(shí)間4天。2.對(duì)三種弱凝膠體系配方進(jìn)行溫度、pH值、礦化度、機(jī)械剪切等影響因素的分析得出：80℃條件下三種配方體系的成膠性能不會(huì)因溫度的限制而受影響,能夠順利交聯(lián),且其穩(wěn)定性能良好；油田水礦化度對(duì)該三種配方體系的影響不大；雙河陳化污水和新鮮污水的pH對(duì)成膠沒有什么影響；三種配方在80℃的環(huán)境溫度下的抗剪切性能比較好。3.研究了調(diào)剖段塞尺寸對(duì)調(diào)剖效果的影響,綜合考慮采出程度增幅和分流率指標(biāo),在注入配方為聚合物2000mmg/L+交聯(lián)劑200mg/L的情況下,0.125PV是最適合該油藏的配方。4.進(jìn)行了不同配方下調(diào)剖效果的實(shí)驗(yàn)研究,結(jié)果表明：聚合物2000mg/L+交聯(lián)劑600mg/L-0.125PV配方能使注劑前后高滲層分流率減少30%以上,并且對(duì)中、低滲層滲透率影響較小,可以達(dá)到封堵高滲通道、啟動(dòng)中低滲通的目的,滿足項(xiàng)目的技術(shù)指標(biāo)要求。5.進(jìn)行了單一聚合物調(diào)剖實(shí)驗(yàn),同時(shí)和注調(diào)剖劑實(shí)驗(yàn)進(jìn)行對(duì)比和研究,結(jié)果表明：?jiǎn)我痪酆衔锓舛赂邼B層能力較差,同時(shí)注單一聚合物的提高采出程度增幅也要低于注調(diào)剖劑增幅。
[Abstract]:With the development of water injection in the oilfield, many oil fields in our country have been in the middle and high water cut stage, and the comprehensive water cut of the oil field is above 80%. In view of the large difference in reservoir heterogeneity, uneven water absorption profile and serious interlayer interference, a deep profile control technique with weak gel is put forward. The non homogeneity of the good stratum improves the efficiency of the polymer flooding and improves the recovery efficiency. The field test also proves that it is of great significance to carry out deep profile control technology for water control and oil recovery in Shuanghe Oilfield and improve the recovery rate. It is worth to pay attention to and popularize this article from the laboratory and theoretical analysis according to the geological data. Methods the polymer profile control technology of water and sewage dilution in Shuanghe oilfield was studied. Three profile control agents were selected by the time and strength analysis of the weak gel system under static conditions, respectively: high strength gel, short gelation time, medium strength gel, medium gel time, low strength gel and longer gelation time. The influence factors of the formula: the influence of the concentration of the main agent on the gelation time and the viscosity; the influence of the concentration of the crosslinker on the time and viscosity of the profile modification agent; the effect of the pH value on the gelation time and the adhesive strength; the determination of the thermal stability (adhesive strength and gelation time); the shear resistance determination (when the adhesive strength and the gelation time) Through the analysis of the influence factors such as temperature, pH value, mineralization degree and mechanical shearing of the weak gel profile control system, the performance evaluation of cross-linking profile control agent under indoor test was obtained. The laboratory experiment on the depth profile control agent was carried out in the laboratory: the laboratory filled the sand filling pipe with high, medium and low permeability, and the sand pipe was parallel together to simulate the formation. Inhomogeneity, by injecting different concentration, different PV number profile control agent, recording the injection point pressure data of parallel model and the data of each tube out of oil and water in the process of injection and subsequent water flooding. Finally, the data analysis shows the trend of increasing the recovery rate and diverting rate with the injection quantity. A single polymer profile control experiment is carried out. The experimental results of the same slug profile control and different formula were compared. Finally, the results were concluded: 1. according to the experimental results of different formulas, three formula systems were selected: low strength formula 1000-2500mg/L, crosslinking agent 150 ~ 200mg/L, adhesive strength 108.4-529.5mpa.s, gelatin time 10 days; medium strength; The formula polymer 1000-2500mg/L, the crosslinker 400mg/L, the strong 270.7-1133mpa.s and the gelation time 5 days, the high strength formula polymer 1000-2000mg/L, the crosslinker 600-1000mg/L, the adhesive strength 1100-2380.7mpa.s, the gelation time.2. to the temperature of the three weak gel systems, the pH value, the mineralizing degree, the mechanical shear and so on. The results showed that the gelation properties of the three formulations were not affected by the temperature limit at 80 centigrade, and could be cross-linked smoothly, and its stability was good; the water salinity of the oil field had little influence on the three formula systems; the pH of the double river aging sewage and the fresh sewage had no effect on the gelation; the three formulations were at the ambient temperature of 80. The lower shear resistance is better than.3.. The effect of profile control slug size on profile control effect is studied. The increase of recovery and the index of diverting rate are taken into consideration. Under the condition of the injection formula of polymer 2000mmg/L+ crosslinker 200mg/L, 0.125PV is the most suitable formula.4. for the reservoir. The results of different formula reduction results are studied. The results show that the formula of polymer 2000mg/L+ crosslinker 600mg/L-0.125PV can reduce the diffluence rate of high permeability layer by more than 30% before and after injection, and has little influence on the permeability of low permeability layer. It can block high permeability channel, start middle and low permeability, and meet the technical specification requirement of the project to carry out a single polymer profile control experiment, at the same time and injection. The experiment of profile control agent is compared and studied. The results show that the ability of single polymer plugging high permeability layer is poor, and the increase in recovery of single polymer is lower than that of injection profile control agent.

【學(xué)位授予單位】：長(zhǎng)江大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TE39

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 白寶君,李宇鄉(xiāng),劉翔鶚;國(guó)內(nèi)外化學(xué)堵水調(diào)剖技術(shù)綜述[J];斷塊油氣田;1998年01期

2 樊文杰,劉連福,孫建國(guó);注聚前深度調(diào)剖井堵劑用量確定方法[J];大慶石油地質(zhì)與開發(fā);2002年02期

3 卓仁禧,張先正;溫度及pH敏感聚(丙烯酸)/聚(N-異丙基丙烯酰胺)互穿聚合物網(wǎng)絡(luò)水凝膠的合成及性能研究[J];高分子學(xué)報(bào);1998年01期

4 張艷芳,羅躍,張建國(guó),羅志華,黨娟華;弱凝膠驅(qū)油體系的研究進(jìn)展[J];精細(xì)石油化工進(jìn)展;2003年06期

5 崔景勝,胡玉國(guó),張偉東,尹鐵山,王浩然;體膨型預(yù)交聯(lián)調(diào)驅(qū)劑TY-101在港西18-6-1井的應(yīng)用[J];石油與天然氣化工;2002年03期

6 趙福麟,張貴才,周洪濤,李宜坤,趙普春;調(diào)剖堵水的潛力、限度和發(fā)展趨勢(shì)[J];石油大學(xué)學(xué)報(bào)(自然科學(xué)版);1999年01期

7 馬艷,呂曉華,皇海權(quán),胡鵬,彭冠宇,胡斌;雙河油田高溫油藏調(diào)剖劑研究及應(yīng)用[J];河南石油;2003年04期

8 蘭玉波;楊清彥;李斌會(huì);;聚合物驅(qū)波及系數(shù)和驅(qū)油效率實(shí)驗(yàn)研究[J];石油學(xué)報(bào);2006年01期

9 王平美,羅健輝,李宇鄉(xiāng),劉國(guó)生,毛為成;弱凝膠調(diào)驅(qū)體系在巖心試驗(yàn)中的行為特性研究[J];石油鉆采工藝;2000年05期

10 唐孝芬,劉玉章,向問陶,劉戈輝,李紅艷,胡頻;交聯(lián)聚合物凍膠調(diào)堵劑性能評(píng)價(jià)指標(biāo)及方法[J];石油鉆采工藝;2004年02期

相關(guān)碩士學(xué)位論文 前1條

1 石國(guó)新;陸9區(qū)呼圖壁河組油藏化學(xué)驅(qū)提高采收率技術(shù)研究[D];西南石油學(xué)院;2005年

，

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