CAJ | 학술논문

常规尾管悬挂器由于密封性能差、内通径小等问题很难满足生产需要,为此,对悬挂及密封材料、液压及机械相结合的膨胀机构、膨胀方式、爆破盘等关键技术进行了研究,研制了膨胀尾管悬挂器.介绍了其结构和工作原理,阐述了其技术优点:该技术把膨胀套管技术应用到尾管完井领域,密封悬挂机构采用高强度橡胶材料,膨胀方式采用液压和机械相结合、由上至下的膨胀方式,设计了爆破盘.为检验膨胀尾管悬挂器的性能指标,进行了膨胀尾管悬挂器室内试验,验证了膨胀尾管悬挂器的基本性能.在王102-侧54井进行了侧钻井现场试验,悬挂φ95 mm尾管901.67 m.膨胀尾管悬挂器集尾管悬挂器及上封隔器于一身,有效解决了尾管头漏失问题,且悬挂密封可靠,内通径远大于尾管内径,是尾管完井技术的最新发展方向.
상규미관현괘기유우밀봉성능차、내통경소등문제흔난만족생산수요,위차,대현괘급밀봉재료、액압급궤계상결합적팽창궤구、팽창방식、폭파반등관건기술진행료연구,연제료팽창미관현괘기.개소료기결구화공작원리,천술료기기술우점:해기술파팽창투관기술응용도미관완정영역,밀봉현괘궤구채용고강도상효재료,팽창방식채용액압화궤계상결합、유상지하적팽창방식,설계료폭파반.위검험팽창미관현괘기적성능지표,진행료팽창미관현괘기실내시험,험증료팽창미관현괘기적기본성능.재왕102-측54정진행료측찬정현장시험,현괘φ95 mm미관901.67 m.팽창미관현괘기집미관현괘기급상봉격기우일신,유효해결료미관두루실문제,차현괘밀봉가고,내통경원대우미관내경,시미관완정기술적최신발전방향.
Conventional liner hanger has poor sealing property and small path coefficient and it can not meet the requirement of production. So research is conducted on the key technologies of suspension and sealing materials, hydraulic and mechanic expansion structure, expansion ways, and rupture disk. Expandable liner hanger is developed. In this paper, the structure and working principle of the expandable liner hanger are introduced, advantages are elaborated. Expandable casing technology is therefore used to liner comple-tion. High-strength rubber materials are firstly adopted for the sealed suspension structure and the top-down hydraulic and mechanic approach. To test the performance indexes of expandable liner hangers, lab test is carried out. Through the test, the basic performance of expandable liner hanger is verified. The first domestic sidetrack drilling field test is launched in Wang102-Ce54 well, with φ95 mm hanger and 901.67 m liner. As a derivative technology of expandable casing, expandable liner hanger combines the functions of liner hanger and upper packer in one, effectively solving the problem of liner loss. Moreover, it has reliable sealing performance, of which the inner path coefficient is far greater than the inner diameter. So it is the newest development trend of liner completion technology.