本文主要研究内容
作者程亮（2019）在《分层采油泵漏失分析及结构优化设计》一文中研究指出：分层采油技术是油田开采的中后期提高采收率、降低开采成本的关键技术手段。与常规抽油泵相比,分层采油泵包含较多球阀类零件,结构复杂,且通常用于高含水量、含砂量的油井,作业工况更加恶劣,更易导致分层采油泵漏失、冲蚀磨损。针对分层采油泵的间隙高漏失量和固定阀的冲蚀磨损,本文基于分层采油泵(FCCYB38-28A)高含水量和含砂量的工况,运用计算流体动力学理论,采用理论计算与数值计算相结合的方法,对分层采油泵柱塞泵筒环形间隙以及固定阀流场进行了研究。在建立了间隙泄漏数值模型的基础上,为了研究单个冲程内间隙泄漏规律,对50mm长度的间隙泄漏模型进行了数值计算。结果表明:柱塞上行时剪切漏失和压差漏失的方向均为沿井筒向下,为正漏失,而下行时只存在负向的剪切漏失;柱塞泵筒环形间隙泄漏量随柱塞两端压差的增大而增大,二者呈线性关系,随间隙宽度的增大而增大,呈三次函数关系。为了研究三种泵间隙等级下迷宫密封槽的适用性,建立了带迷宫密封槽的间隙泄漏模型,通过改变计算域中介质的粘度值,对三种泵间隙等级下迷宫密封槽的阻流效果进行了研究,得到了迷宫密封槽在三种泵间隙等级下的适用原则:一级泵间隙加迷宫密封槽,适用于产出液粘度值小于2mPa·s的油井;二级和三级泵间隙加迷宫密封槽,分别适用于产出液粘度值小于2.5mPa·s和小于6mPa·s的油井。为使迷宫密封槽阻流效果达到最优,采用单因素法研究了密封槽尺寸对阻流能力的影响,结果表明:对一级泵间隙,随着密封槽尺寸的增大,阻流能力先增大再减小,槽宽取0.54mm时阻流效果相对最好;对二级、三级泵间隙,密封槽阻流能力随槽尺寸的增大而增大,在标准允许范围内,槽宽应取1.5mm;通过对比验证发现,对于相同长度的泵间隙,给定密封槽间距,增加密封槽尺寸比增加密封槽数量更有利于减小泄漏。针对固定阀开启压差作用下,阀座冲蚀磨损严重的问题,通过改变固定阀开启程度,研究了固定阀冲蚀特性与开启程度的关系。结果表明:固定阀锥面处冲蚀磨损最严重,最大冲蚀率随固定阀开启程度的增大而迅速减小;研究了固定阀的阀座锥度对最大冲蚀率的影响,结果表明:最大冲蚀率随着锥度的增大而减小,锥度值取37.5°至39°时,能得到较小的冲蚀率;针对分层采油泵固定阀沉砂结垢问题,提出了固定阀结构改进方案,经验证,通过改进后的固定阀结构,能显著改善阀腔内流体产生漩涡的现象,从而能较好改善固定阀结垢沉砂的问题。
Abstract
fen ceng cai you ji shu shi you tian kai cai de zhong hou ji di gao cai shou lv 、jiang di kai cai cheng ben de guan jian ji shu shou duan 。yu chang gui chou you beng xiang bi ,fen ceng cai you beng bao han jiao duo qiu fa lei ling jian ,jie gou fu za ,ju tong chang yong yu gao han shui liang 、han sha liang de you jing ,zuo ye gong kuang geng jia e lie ,geng yi dao zhi fen ceng cai you beng lou shi 、chong shi mo sun 。zhen dui fen ceng cai you beng de jian xi gao lou shi liang he gu ding fa de chong shi mo sun ,ben wen ji yu fen ceng cai you beng (FCCYB38-28A)gao han shui liang he han sha liang de gong kuang ,yun yong ji suan liu ti dong li xue li lun ,cai yong li lun ji suan yu shu zhi ji suan xiang jie ge de fang fa ,dui fen ceng cai you beng zhu sai beng tong huan xing jian xi yi ji gu ding fa liu chang jin hang le yan jiu 。zai jian li le jian xi xie lou shu zhi mo xing de ji chu shang ,wei le yan jiu chan ge chong cheng nei jian xi xie lou gui lv ,dui 50mmchang du de jian xi xie lou mo xing jin hang le shu zhi ji suan 。jie guo biao ming :zhu sai shang hang shi jian qie lou shi he ya cha lou shi de fang xiang jun wei yan jing tong xiang xia ,wei zheng lou shi ,er xia hang shi zhi cun zai fu xiang de jian qie lou shi ;zhu sai beng tong huan xing jian xi xie lou liang sui zhu sai liang duan ya cha de zeng da er zeng da ,er zhe cheng xian xing guan ji ,sui jian xi kuan du de zeng da er zeng da ,cheng san ci han shu guan ji 。wei le yan jiu san chong beng jian xi deng ji xia mi gong mi feng cao de kuo yong xing ,jian li le dai mi gong mi feng cao de jian xi xie lou mo xing ,tong guo gai bian ji suan yu zhong jie zhi de nian du zhi ,dui san chong beng jian xi deng ji xia mi gong mi feng cao de zu liu xiao guo jin hang le yan jiu ,de dao le mi gong mi feng cao zai san chong beng jian xi deng ji xia de kuo yong yuan ze :yi ji beng jian xi jia mi gong mi feng cao ,kuo yong yu chan chu ye nian du zhi xiao yu 2mPa·sde you jing ;er ji he san ji beng jian xi jia mi gong mi feng cao ,fen bie kuo yong yu chan chu ye nian du zhi xiao yu 2.5mPa·she xiao yu 6mPa·sde you jing 。wei shi mi gong mi feng cao zu liu xiao guo da dao zui you ,cai yong chan yin su fa yan jiu le mi feng cao che cun dui zu liu neng li de ying xiang ,jie guo biao ming :dui yi ji beng jian xi ,sui zhao mi feng cao che cun de zeng da ,zu liu neng li xian zeng da zai jian xiao ,cao kuan qu 0.54mmshi zu liu xiao guo xiang dui zui hao ;dui er ji 、san ji beng jian xi ,mi feng cao zu liu neng li sui cao che cun de zeng da er zeng da ,zai biao zhun yun hu fan wei nei ,cao kuan ying qu 1.5mm;tong guo dui bi yan zheng fa xian ,dui yu xiang tong chang du de beng jian xi ,gei ding mi feng cao jian ju ,zeng jia mi feng cao che cun bi zeng jia mi feng cao shu liang geng you li yu jian xiao xie lou 。zhen dui gu ding fa kai qi ya cha zuo yong xia ,fa zuo chong shi mo sun yan chong de wen ti ,tong guo gai bian gu ding fa kai qi cheng du ,yan jiu le gu ding fa chong shi te xing yu kai qi cheng du de guan ji 。jie guo biao ming :gu ding fa zhui mian chu chong shi mo sun zui yan chong ,zui da chong shi lv sui gu ding fa kai qi cheng du de zeng da er xun su jian xiao ;yan jiu le gu ding fa de fa zuo zhui du dui zui da chong shi lv de ying xiang ,jie guo biao ming :zui da chong shi lv sui zhao zhui du de zeng da er jian xiao ,zhui du zhi qu 37.5°zhi 39°shi ,neng de dao jiao xiao de chong shi lv ;zhen dui fen ceng cai you beng gu ding fa chen sha jie gou wen ti ,di chu le gu ding fa jie gou gai jin fang an ,jing yan zheng ,tong guo gai jin hou de gu ding fa jie gou ,neng xian zhe gai shan fa qiang nei liu ti chan sheng xuan guo de xian xiang ,cong er neng jiao hao gai shan gu ding fa jie gou chen sha de wen ti 。
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论文作者分别是来自长江大学的程亮，发表于刊物长江大学2019-09-04论文，是一篇关于分层采油泵论文,漏失论文,结构优化论文,有限元论文,计算流体动力论文,长江大学2019-09-04论文的文章。本文可供学术参考使用，各位学者可以免费参考阅读下载，文章观点不代表本站观点，资料来自长江大学2019-09-04论文网站，若本站收录的文献无意侵犯了您的著作版权，请联系我们删除。
标签：分层采油泵论文; 漏失论文; 结构优化论文; 有限元论文; 计算流体动力论文; 长江大学2019-09-04论文;