發(fā)布時間：2018-01-08 08:21

  本文關(guān)鍵詞：固井套管扶正器應(yīng)用技術(shù)研究　出處：《重慶科技學(xué)院》2017年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 固井 套管扶正器 安放間距 下套管摩阻

【摘要】：在定向井固井施工過程中,套管居中度是影響固井質(zhì)量的重要因素之一。為提高套管居中度,現(xiàn)場采用套管扶正器。不同類型的套管扶正器由于結(jié)構(gòu)和特性不同以及套管扶正器安裝距離的不同,套管柱下入過程中的摩阻力也存在較大差異。因此,對于定向井、特別是大位移井,確定合適的套管扶正器及安裝距離,對于套管柱的順利下入及提高固井質(zhì)量具有重要的意義。本文在調(diào)研國內(nèi)外文獻的基礎(chǔ)上,對現(xiàn)場常用的套管扶正器的結(jié)構(gòu)和特點進行了調(diào)研分析,認為剛性套管扶正器使用范圍有限,液壓式套管扶正器結(jié)構(gòu)復(fù)雜、可控性差,而彈性套管扶正器結(jié)構(gòu)簡單、現(xiàn)場應(yīng)用較多,在隨套管下入過程中彈性套管扶正器下入摩阻力還可進一步降低,以使套管柱可下深度進一步加大。本研究在對現(xiàn)有彈性套管扶正器結(jié)構(gòu)進行分析的基礎(chǔ)上,對彈性套管扶正器結(jié)構(gòu)進行了改進設(shè)計,采用摩擦系數(shù)較低的硬塑料材料作為與井壁接觸的支撐塊,其摩擦系數(shù)約是原彈性套管扶正器的彈簧片摩擦系數(shù)的十分之一,運用二維畫圖工具設(shè)計出硬塑料扶正塊零件圖以及改進后的彈性套管扶正器的裝備圖,改進結(jié)構(gòu)設(shè)計申請獲國家實用新型專利(專利號:ZL201621089458.X)�？紤]套管內(nèi)外密度差影響因素分析計算載荷,參照石油與天然氣行業(yè)標準方法SY/T5334-1996,修正了套管扶正器安裝間距計算方法,使分析計算彈性套管扶正器安放間距更適合用于工程實際。在此基礎(chǔ)上,運用VB語言編寫的計算程序,可實現(xiàn)套管扶正器下入摩阻力、安裝間距等參數(shù)的快速計算,對于套管柱的優(yōu)化和下入作業(yè),具有一定的指導(dǎo)意義。根據(jù)計算程序,結(jié)合工程實際井草平6井和南華1井,計算出原彈性套管扶正器和改進后的彈性套管扶正器下入過程的摩阻力,計算結(jié)果進行對比分析表明:改進的彈性套管扶正器摩阻力降低了原來的百分之九十左右,更有利于定向井、大位移井下套管作業(yè)的順利實施。
[Abstract]:In the directional well cementing process, casing center degree is one of the important factors affecting the cementing quality. In order to improve the casing center degree, the centralizer. Different types of casing centralizer due to the structure and characteristics of different and different casing centralizer installation distance, casing down into the friction in the process of existence big difference. Therefore, for directional well, especially the large displacement wells, determine the centralizer and the appropriate installation distance, is of great significance for the improvement of casing and well cementing quality. Based on the investigation of domestic and foreign literature on the structure and characteristics of the centralizer of the site research and analysis that rigid casing centralizer with limited scope, structure of hydraulic casing centralizer is complex, poor controllability, and elastic centralizer has the advantages of simple structure, widely used in the scene, with the casing In the process of elastic centralizer in friction can be further reduced, so that the casing can further increase the depth. This research is based on the existing elastic centralizer structure on the analysis of elastic centralizer structure was designed by using hard plastic materials as low friction coefficient the supporting block and wall contact, the friction coefficient is about spring friction coefficient of elastic casing centralizer 1/10, using two-dimensional drawing tools to design the equipment figure elastic centralizer hard plastic centralizer piece part drawings and improved the improvement of structure design for the national utility model patent (Patent No.: ZL201621089458.X) considering the internal and external casing. The density difference analysis on the influencing factors of the load calculation, according to the SY/T5334-1996 oil and gas industry standard method, fixed centralizer spacing meter installation The analysis calculation method, calculation of elastic casing centralizer spacing is more suitable for engineering practice. On this basis, using the calculation program of VB language, can achieve the centralizer in friction resistance, fast calculation of installation distance and other parameters for optimization of casing and operation, which has a certain guiding significance. According to the calculation procedure, combined with the engineering practice well Cao Ping 6 well and South China 1 wells, friction elastic centralizer calculated elastic centralizer and improved in the process, by comparing the calculation results analysis show that: the improved elastic centralizer friction reduces about ninety percent of the original, more conducive to well, the smooth implementation of large displacement casing operations.

【學(xué)位授予單位】：重慶科技學(xué)院
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TE925.2

【相似文獻】

相關(guān)期刊論文 前10條

1 舒中選,陳德東,鄭嚴,李靜芬;常用套管扶正器扶正力及其變形關(guān)系的探討[J];石油鉆探技術(shù);2003年05期

2 劉玉江,楊啟貞,宿官禮;整體式強力編織套管扶正器的研制及應(yīng)用[J];石油鉆采工藝;1999年02期

3 魏學(xué)成;夏書林;;疊片式可膨脹套管扶正器設(shè)計[J];石油礦場機械;2007年02期

4 吳疆;套管扶正器間距計算[J];西南石油學(xué)院學(xué)報;1984年01期

5 陳生t/;套管與井壁之間最小間隙的分析研究與最優(yōu)扶正器間距的選擇[J];石油鉆采工藝;1986年04期

6 李定先;;使用套管扶正器提高固井質(zhì)量[J];鉆采工藝;1990年02期

7 蘇川運;;西北地區(qū)首臺套管扶正器性能檢測裝置研制成功[J];新疆石油科技;1992年01期

8 張虎林 ,韓振強 ,王中伏 ,張s，

本文編號：1396337