HPR高温高压压裂封隔器的研制与应用  

Development and application of HPR high-temperature and high-pressure fracturing packer

作　　者：王学正 冯强 秦诗涛 骆劲羽 冯大强 赵文凯 WANG Xuezheng;FENG Qiang;QIN Shitao;LUO Jinyu;FENG Daqiang;ZHAO Wenkai(Bohai Institute of Drilling Engineering Technology Completion Center,Tianjin 300450,China;Qinghai Oilfield Drilling and Production Technology Research Institute,Dunhuang 735000,China)

机构地区：[1]中国石油集团渤海钻探工程技术研究院,天津300450 [2]中国石油青海油田钻采工艺研究院,敦煌735000

出　　处：《油气井测试》2023年第1期45-51,共7页Well Testing

基　　金：中国石油集团渤海钻探工程有限公司重大科研项目“新型完井工具研制”(2016ZD01K)。

摘　　要：在高温高压井施工作业过程中,压裂封隔器易出现中途失封、压后无法解封、回收困难、管柱无法起出等问题;进口的压裂封隔器,施工成本高,进货周期长,在一定程度上制约深井和超深井的勘探开发。为满足塔里木、准噶尔、吐哈盆地、柴达木盆地等地区深井、超深井高温、高压作业的需求,研制了集锚定机构、密封机构于一体,采用特种高分子材料作为胶筒防突保护的耐温200℃、承压差105 MPa的HPR高温高压压裂封隔器。室内座封启动和解封实验结果表明,封隔器各项性能参数满足现场试验要求;经ET1井现场试验,封隔器密封良好,锚定可靠,放喷、试气后,解封顺利,满足现场施工要求。该封隔器为高温高压井压裂施工提供了有力的技术支持。During operations of wells with high temperature and high pressure,the fracturing packers are susceptible to failure of isolation during fracturing,failure of release after fracturing,difficulty in retrieval,and inability to pull out the pipe string.The imported fracturing packers are characterized by high operation costs and long delivery cycles,which restrict the exploration and development with deep and ultra-deep wells to a certain extent.In order to satisfy the operations of deep and ultra-deep wells with high temperature and high pressure in Tarim Basin,Junggar Basin,Turpan-Hami Basin,Qaidam Basin and other regions,an HPR high-temperature and high-pressure fracturing packer with a temperature resistance of 200℃and a pressure difference of 105 MPa was developed.This fracturing packer uses special high polymer material for anti-outburst of the rubber packer and integrates the anchoring mechanism and the sealing mechanism.The laboratory setting and releasing experiments show that the fracturing packer meets the performance parameters required on site.The field test in Well ET1 proves that the fracturing packer is well performed in sealing and anchoring,and released successfully after bleeding and gas test.The HPR high-temperature and high-pressure fracturing packer provides a strong technical support for fracturing of wells with high temperature and high pressure.

关 键 词：高温高压井 压裂 封隔器 防突保护 管柱蠕动 材料优选 室内评价 现场试验 

分 类 号：TE353[石油与天然气工程—油气田开发工程]