CAJ | 학술논문

随着深井、超深井、水平井、高温高压井等复杂井越来越多，固井施工的难度越来越大，常规尾管固井工具及工艺难以满足现场需求。为解决复杂井况下的固井技术难题，研制了新型多功能尾管悬挂器，设计了旋转机构、坐挂机构、液压丢手、顶部封隔等多个功能模块，并采用有限元方法对关键部件进行仿真分析，优化了各功能模块的结构和参数。计算和地面试验证明，各功能模块的性能、功能及技术参数符合设计要求。多功能尾管悬挂器在涠洲WZ612 A3S井进行了现场试验，结果表明，该尾管悬挂器对现场复杂井况具有较强的适应能力和可靠性。
수착심정、초심정、수평정、고온고압정등복잡정월래월다，고정시공적난도월래월대，상규미관고정공구급공예난이만족현장수구。위해결복잡정황하적고정기술난제，연제료신형다공능미관현괘기，설계료선전궤구、좌괘궤구、액압주수、정부봉격등다개공능모괴，병채용유한원방법대관건부건진행방진분석，우화료각공능모괴적결구화삼수。계산화지면시험증명，각공능모괴적성능、공능급기술삼수부합설계요구。다공능미관현괘기재위주WZ612 A3S정진행료현장시험，결과표명，해미관현괘기대현장복잡정황구유교강적괄응능력화가고성。
With the development of drilling deep ,ultra-deep ,horizontal ,and HPHT wells ,more chal-lenges in cementing have occurred ,conventional liner cementing tools and technique have difficulty meeting the new requirements .To solve complex problems in cementing ,a new type of multi-functional liner hanger was manufactured ,which included rotary mechanism ,setting device ,hydraulic release and top packer etc , and the finite element method was used to simulate some key components to optimize structure and param-eters .Calculation and tests show that all parts can meet the needs of designing performance ,function and parameters .The paper showed that multi-functional liner hanger used in the Well WZ6 12 A3S ,has pow-erful adaptability in complex dow n-hole conditions .