本文選題：支撐劑　切入點(diǎn)：非金屬礦　出處：《信陽師范學(xué)院》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：石油支撐劑作為一種人造陶粒,一般由鋁礬土為主要原料經(jīng)粉碎、篩分、混料、造粒后,高溫焙燒而成。它具有密度小、強(qiáng)度高、流動(dòng)性好、耐酸堿腐蝕等優(yōu)點(diǎn),可有效地提高石油開采率,增加油氣井產(chǎn)量。本文以鋁礬土、高嶺土、凝灰?guī)r及膨潤土等非金屬礦為主要原料,添加適量添加劑,經(jīng)高溫焙燒,制備非金屬礦低密度石油壓裂支撐劑,研究焙燒工藝及添加劑對(duì)支撐劑性能的影響。主要包括以下幾個(gè)方面:(1)采用單因素試驗(yàn)方法探討原料的鋁硅比、不同添加劑及用量、焙燒溫度和焙燒時(shí)間對(duì)支撐劑性能的影響,確定最佳原料配比及添加劑用量,優(yōu)化制備工藝;(2)在單因素試驗(yàn)的基礎(chǔ)上,選取影響較為顯著的因素進(jìn)行正交試驗(yàn),優(yōu)化試驗(yàn)條件,選擇最佳工藝參數(shù),并對(duì)焙燒溫度、添加劑CaF_2與MgO的用量及三者之間的交互作用進(jìn)行探討,運(yùn)用直觀分析、方差分析以及效應(yīng)與工程平均等分析方法,對(duì)試驗(yàn)條件進(jìn)行考察,試驗(yàn)結(jié)果表明,影響支撐劑性能的顯著因素為焙燒溫度和添加劑CaF_2的用量;(3)在正交試驗(yàn)的基礎(chǔ)上,對(duì)支撐劑進(jìn)行樹脂包覆,篩選出合適的樹脂濃度、樹脂與支撐劑的用量比、固化溫度以及固化時(shí)間,優(yōu)化制備工藝,制備低密度的樹脂覆膜石油壓裂支撐劑;(4)對(duì)支撐劑的體積密度、視密度、破碎率及圓球度、晶相組成和形貌進(jìn)行測(cè)定及表征。研究結(jié)果表明,非金屬礦低密度石油壓裂支撐劑的最佳制備工藝為:原料配比為鋁礬土∶高嶺土∶凝灰?guī)r∶膨潤土=78∶7∶10∶5,添加劑CaF_2的用量為1.0%,焙燒溫度為1250℃,焙燒時(shí)間為90 min,制備的支撐劑體積密度為1.548 g·cm~(-3),視密度為2.764 g·cm~(-3),顆粒點(diǎn)強(qiáng)度為46.09 N,52 MPa的閉合壓力下破碎率是21.43%。樹脂覆膜支撐劑的最佳制備工藝為:樹脂與乙醇的質(zhì)量比為1∶6,樹脂溶液與支撐劑的質(zhì)量比為1∶5,固化溫度為160℃,固化時(shí)間為30 min,制備的覆膜支撐劑體積密度為1.437 g·cm~(-3),視密度為2.669 g·cm~(-3),顆粒點(diǎn)強(qiáng)度為70.72 N,52MPa的閉合壓力下破碎率為15.43%。本文以非金屬礦為主要原料,采用高溫靜態(tài)焙燒工藝,制備出低密度的石油壓裂支撐劑,為高嶺土、凝灰?guī)r、膨潤土和珍珠巖等非金屬礦的有效利用提供了新途徑和新方法。
[Abstract]:As a kind of artificial ceramsite, petroleum proppant is generally made of bauxite as the main raw material after crushing, screening, mixing, granulating, and roasting at high temperature. It has the advantages of low density, high strength, good fluidity, resistance to acid and alkali corrosion, etc. In this paper, bauxite, kaolinite, tuff and bentonite are used as the main raw materials, some additives are added and calcined at high temperature. To prepare low density petroleum fracturing proppant for nonmetallic ore, and to study the effect of roasting technology and additives on the properties of proppant, mainly including the following aspects: 1) using single factor test method to study the ratio of aluminum to silicon, different additives and dosage of raw materials, The effects of calcination temperature and calcination time on the properties of proppant, the optimum ratio of raw materials and the dosage of additives, and the optimized preparation technology were determined. On the basis of single factor test, the orthogonal test was carried out with the more significant factors, and the test conditions were optimized. The optimum process parameters were selected, and the roasting temperature, the amount of additive CaF_2 and MgO and their interaction were discussed. The test conditions were investigated by means of visual analysis, variance analysis and analysis of effect and engineering average. The results showed that the significant factors affecting the properties of proppant were roasting temperature and dosage of additive CaF_2. On the basis of orthogonal experiment, the resin was coated with the proppant, and the proper resin concentration and the ratio of resin to proppant were selected. The bulk density, apparent density, breakage rate and sphericity of low density resin coated oil fracturing proppant were prepared by optimizing the preparation process and curing temperature, curing time, and preparing low density resin coated oil fracturing proppant. The crystal phase composition and morphology were measured and characterized. The optimum preparation technology of low-density petroleum fracturing proppant in nonmetallic ore is: bauxite: kaolin: tuff: bentonite, 78: 7: 10: 5, the dosage of additive CaF_2 is 1.0, the roasting temperature is 1250 鈩，

本文編號(hào)：1613750