CAJ | 학술논문

低渗气藏不断加大水平井开发力度,水平井数量急剧增加,井筒积液成为水平气井普遍存在的难题。根据水平井筒内气液两相流体由分层流向非分层流转变判别式,对影响水平段井筒携液的因素进行分析。分析表明：水平段井筒倾角越大、积液高度越高、管径越小,水平井筒中气液两相流型更容易从层流转向非层流,水平段中的液体更容易被气流带出。通过实例证明水平井井轨迹对气井排液有影响,B靶点比A靶点越高,井底积液越少。
저삼기장불단가대수평정개발력도,수평정수량급극증가,정통적액성위수평기정보편존재적난제。근거수평정통내기액량상류체유분층류향비분층류전변판별식,대영향수평단정통휴액적인소진행분석。분석표명：수평단정통경각월대、적액고도월고、관경월소,수평정통중기액량상류형경용역종층류전향비층류,수평단중적액체경용역피기류대출。통과실예증명수평정정궤적대기정배액유영향,B파점비A파점월고,정저적액월소。
With the increase of horizontal well development,the fluid accumulation in well-bore is becoming a common problem in horizontal wells.The factors of effecting horizontal well fluid carrying are analyzed by using the discriminant that estimates fluid flow pattern into non-laminar from laminar.The results show that the greater the horizontal segment degree is,the higher the hydrops is,and the smaller the tube diameter is,the fluid flow pattern is easier to become non-laminar from laminar,and the fluid is easier to be carried out by gas flow.