水基泡沫鉆井液穩(wěn)定性影響因素分析
[Abstract]:As a main type of underbalanced drilling fluid, foam drilling fluid has many advantages, such as fast drilling speed, small formation damage, strong suspension energy, effective protection of drilling tools and drill bits, etc. The most important thing to evaluate foam drilling fluid is foaming performance and foaming stability. At present, many scholars have studied the stability of foam, but generally it is the mathematical equation analysis of a single liquid drain or a single gas diffusion, less systematic analysis of both, in order to solve this problem, In this paper, the factors affecting the stability of water-based foam and its performance evaluation are analyzed in macro and micro aspects, and the mathematical equations of foam efflux and gas diffusion coefficient are also analyzed. The main work of this paper is as follows: firstly, the foaming performance and foaming stability of eight kinds of foaming agents are evaluated. The foaming agent YLB, with a foaming height of 780mL and a half-life of 605s was selected and microscopically compared with the foaming agent YLB and foaming agent K12 by means of styroscope and Nano Measure 1.2 software. The results show that the particle size distribution of foaming agent K12 is 56.49 ~ 540.35 渭 m, the average particle size is 246.94 渭 m, and the particle size distribution of foaming agent YLB is 29.38 ~ 260.72 渭 m and 86.29 渭 m respectively. The microcosmic analysis shows that the stability of foaming agent YLB is good. Secondly, the stability of foaming agent YLB foam was investigated in laboratory under different influence factors, such as concentration, temperature, base viscosity, inorganic salt content and pH value. At the same time, the particle size of foaming agent YLB and foaming agent K12 was measured with Scion Image software at different concentration, temperature, time and PH value. The stability of foaming agent was analyzed microscopically under different influence factors. At last, the relationship between the amount of efflux and time is obtained by the mathematical fitting of the quantity of efflux of different types of foaming agent with time. The change of liquid content and particle size with time in the upper and lower layer foam of foaming agent YLB was fitted by using the model proposed by K Feitosa. The results showed that the Deff of upper foams varied with time from 0.96 to 0.93 脳 10-6cm2/s. The Deff of the lower foams varies from 0.81 to 0.93 脳 10-6cm2/s, while the Deff of the upper and lower foams varies little with time and is basically a constant. It is proved that it is better to fit the efflux of foam with the size of foam. At the same time, according to Lemlich theory, the calculation method of gas diffusion coefficient is given, and the gas diffusion coefficient of foaming agent YLB and foaming agent K12 are calculated respectively, and the JYLBJK12. is obtained. It is also proved that the compound foaming agent YLB is more stable than the single blowing agent K 12.
【學位授予單位】:西南石油大學
【學位級別】:碩士
【學位授予年份】:2017
【分類號】:TE254
【相似文獻】
相關期刊論文 前10條
1 耿宏章,周開學,秦積舜,陳興隆;磁場對泡沫鉆井液電導率的影響研究[J];鉆井液與完井液;2003年04期
2 張振華,孫延德,崔曉艷;高溫高壓下可循環(huán)微泡沫鉆井液管路流動試驗[J];鉆井液與完井液;2004年02期
3 張坤,秦宗倫,田嵐,周志文;可循環(huán)泡沫鉆井液的再認識[J];鉆采工藝;2004年04期
4 耿宏章,蔣莉,王軍,成效華;可循環(huán)泡沫鉆井液動靜密度特性對比實驗研究[J];鉆井液與完井液;2005年05期
5 李銀朋;韓洪升;;微泡沫鉆井液流變特性研究[J];內(nèi)蒙古石油化工;2009年19期
6 王桂全;孫玉學;李建新;孫良偉;;微泡沫鉆井液的穩(wěn)定性研究與應用[J];石油鉆探技術(shù);2010年06期
7 藍強;張敬輝;李公讓;張虹;何興貴;王傳富;;泡沫鉆井液的析液作用機理研究進展[J];鉆井液與完井液;2011年04期
8 李波,隋躍華,郭建國,成效華,紀洪濤;可循環(huán)泡沫鉆井液技術(shù)在側(cè)平1井中的應用[J];鉆采工藝;2000年02期
9 李家龍,王德康,趙正培,譚奇生;泡沫鉆井液在大井眼漏失井中的應用[J];鉆采工藝;2000年06期
10 劉德勝,郭志強,鄭永臣,賈東民,苑旭波,丁光波,鄧永波;微泡沫鉆井液在哈345X井的應用[J];鉆井液與完井液;2000年05期
相關會議論文 前1條
1 趙曉竹;何恕;劉永貴;宋濤;;抗高溫可循環(huán)霧化泡沫鉆井液在徐深31井的應用[A];環(huán)保鉆井液技術(shù)及廢棄鉆井液處理技術(shù)研討會論文集[C];2014年
相關重要報紙文章 前1條
1 韓彬 通訊員 韓建棟 祁雙虎;微泡技術(shù):殺入市場的黑馬[N];中國石油報;2004年
相關博士學位論文 前2條
1 程榮超;泡沫鉆井液水平井段流動特性研究[D];中國石油大學;2008年
2 孔凡軍;大慶油田海塔盆地鉆井提速關鍵技術(shù)研究[D];東北石油大學;2011年
相關碩士學位論文 前10條
1 肖平平;吉林油田微泡沫鉆井液流變模型的研究[D];東北石油大學;2015年
2 劉熙光;分支水平井泡沫鉆井液研究及應用[D];東北石油大學;2015年
3 朱春光;抗高溫無固相可循壞微泡沫鉆井液技術(shù)研究與應用[D];東北石油大學;2015年
4 孔斌;適用于頁巖氣鉆井的油基泡沫鉆井液的研制[D];西南石油大學;2016年
5 佘德風;可循環(huán)氮氣泡沫鉆井液技術(shù)研究[D];中國石油大學(華東);2014年
6 徐友紅;水基泡沫鉆井液穩(wěn)定性影響因素分析[D];西南石油大學;2017年
7 趙劍龍;微泡沫鉆井液防塌機理及應用研究[D];大慶石油學院;2008年
8 楊婧娜;大慶油田微泡沫鉆井液室內(nèi)研究[D];東北石油大學;2011年
9 王輝;塔木察格微泡沫鉆井液體系應用研究[D];東北石油大學;2013年
10 陳先貴;微泡沫鉆井液研制[D];東北石油大學;2013年
,本文編號:2271096
本文鏈接:http://www.sikaile.net/shoufeilunwen/boshibiyelunwen/2271096.html