延安大学学报:自然科学版
延安大學學報:自然科學版
연안대학학보:자연과학판
Journal of Yan'an University(Natural Science Edition)
2011年
4期
31-34
,共4页
李勇明%江有适%高瑞民%吴金桥%申峰%乔红军
李勇明%江有適%高瑞民%吳金橋%申峰%喬紅軍
리용명%강유괄%고서민%오금교%신봉%교홍군
喷射引流%喷射器%混合压力%特性曲线
噴射引流%噴射器%混閤壓力%特性麯線
분사인류%분사기%혼합압력%특성곡선
ejection drainage technology%ejector%mixed pressure%characteristic curve
天然气喷射引流技术是利用高压气井的能量提高低压气井压力,实现低压气井正常稳定生产,延迟增压开采时间。目前在现场得到了一定应用,但存在喷射压力的理论与应用分析缺乏。为提高喷射引流技术的应用效果,优化设计喷射器参数,本文结合长庆气田某输气站气体喷射器的实际工作情况,以喷射器内部气体流动特征和气体动力学理论为基础,建立了混合压力及特性曲线的计算模型,并进一步分析了其影响因素。结果表明:混合压力随高、低压天然气压力的增加而增加;高、低压气的温度对混合压力的影响不明显;混合压力随喷射器结构参数混合腔喉部面积与一次气喷嘴喉部面积之比的增加而减小,结合可达到喷射系数计算曲线可确定出气体喷射器的最佳状态参数;结构参数一次气喷嘴出口面积与一次气喷嘴喉部面积之比对混合压力有较为复杂的影响,且该参数存在最优范围。分析结果对于喷射引流技术的应用推广具有指导意义。
天然氣噴射引流技術是利用高壓氣井的能量提高低壓氣井壓力,實現低壓氣井正常穩定生產,延遲增壓開採時間。目前在現場得到瞭一定應用,但存在噴射壓力的理論與應用分析缺乏。為提高噴射引流技術的應用效果,優化設計噴射器參數,本文結閤長慶氣田某輸氣站氣體噴射器的實際工作情況,以噴射器內部氣體流動特徵和氣體動力學理論為基礎,建立瞭混閤壓力及特性麯線的計算模型,併進一步分析瞭其影響因素。結果錶明:混閤壓力隨高、低壓天然氣壓力的增加而增加;高、低壓氣的溫度對混閤壓力的影響不明顯;混閤壓力隨噴射器結構參數混閤腔喉部麵積與一次氣噴嘴喉部麵積之比的增加而減小,結閤可達到噴射繫數計算麯線可確定齣氣體噴射器的最佳狀態參數;結構參數一次氣噴嘴齣口麵積與一次氣噴嘴喉部麵積之比對混閤壓力有較為複雜的影響,且該參數存在最優範圍。分析結果對于噴射引流技術的應用推廣具有指導意義。
천연기분사인류기술시이용고압기정적능량제고저압기정압력,실현저압기정정상은정생산,연지증압개채시간。목전재현장득도료일정응용,단존재분사압력적이론여응용분석결핍。위제고분사인류기술적응용효과,우화설계분사기삼수,본문결합장경기전모수기참기체분사기적실제공작정황,이분사기내부기체류동특정화기체동역학이론위기출,건립료혼합압력급특성곡선적계산모형,병진일보분석료기영향인소。결과표명:혼합압력수고、저압천연기압력적증가이증가;고、저압기적온도대혼합압력적영향불명현;혼합압력수분사기결구삼수혼합강후부면적여일차기분취후부면적지비적증가이감소,결합가체도분사계수계산곡선가학정출기체분사기적최가상태삼수;결구삼수일차기분취출구면적여일차기분취후부면적지비대혼합압력유교위복잡적영향,차해삼수존재최우범위。분석결과대우분사인류기술적응용추엄구유지도의의。
Gas ejection drainage technology is the use of the energy of high-pressure gas well to increase the pressure of low-pressure gas well,to achieve a normal and stable production in low-pressure gas well,to delay the time of supercharging production.Currently this technology has been to a certain application at the scene,however,it is a lack of ejection pressure theory and application analysis.To improve the effect of ejection drainage technology,optimize the ejector parameters,in this paper,using the actual work of a gas station in Changqing gas field,establishing mixed pressure and the characteristic curve calculation model based on the gas flow characteristics in internal ejector and gas dynamics theory,and further analysis the affecting factors.The results show that mixed pressure will be increased with high and low gas pressure;the effect of temperature of high and low pressure on the mixedpressure is no significant;mixed pressure will decrease with the ratio of ejector structural parameters of the mixing throat area and a gas ejection throat area increasing,combined with the can be achieved ejection coefficient curve cand etermine the best gas ejector parameters;the ratio of structural parameters of a gas ejection discharging area and a gas ejection throat area have a more complex effects on mixed pressure,and there exists an optimal range of this parameter.The results have guiding significance for the application and promotion of ejection drainage technology.