免钻式膨胀管补贴技术研究与现场试验  

Research and Field Test of Non-Drilling Plug Expandable Casing Patching Technology

作　　者：杨海波 侯婷 冯德杰 滕照正 吴柳根 Corporation;

机构地区：[1]中石化胜利石油工程有限公司钻井工艺研究院,山东东营257000

出　　处：《石油钻探技术》2017年第5期74-78,共5页Petroleum Drilling Techniques

基　　金：中国石化集团科技攻关项目"裸眼封堵等井径膨胀套管技术研究"(编号:JP11007)部分研究内容

摘　　要：采用常规膨胀管补贴技术进行套管修复后需进行钻塞作业,会延长修井周期、增加作业费用。为此,进行了免钻装置结构设计、工具参数优化和室内试验验证,确定工具性能指标和使用工况,形成了免钻式膨胀管补贴技术。根据室内试验结果确定免钻装置的性能指标符合现场实施要求,除此之外,还确定了施工参数及施工工况,给出了免钻膨胀管补贴技术的现场施工工艺。渤海湾CDX-56P井的现场试验结果表明,该免钻装置能够满足抗扭、抗压等现场施工要求,具有较好的实用性。免钻式膨胀管补贴技术的试验成功,为套损井的治理开发提供了一种完井周期更短、费用更加低廉的技术手段。Drilling plug operations must be carried out after casing repair by means of the traditional expandable casing patching technology,which results in an extended workover period and increased operating expenses.Therefore,non-drilling plug expandable casing patching technology were developed after determination of performance indicators and applying working condition of tools by structural design of nondrilling plug device,parameter optimization of tools,verification of laboratory experiment.Laboratory test results showed that the performance indicators of this device in wells with damaged casing met site implementation requirements.Construction parameters and working conditions were made clear.Moreover,the site implementation flow for non-drilling plug expandable casing patching technology was established.The field test results in Well CDX-56 Pof Bohai Gulf indicated that this non-drilling plug device could satisfy the site construction requirements for anti-torsion and anti-pressure,etc and it also possessed good field practicability.The successful test of non-drilling plug expandable casing patching technology provided the technical means of shorter operating cycle and lower costs for harnessing the development of wells with damaged casing.

关 键 词：膨胀管 套管补贴 免钻 现场试验 CDX-56P井 

分 类 号：TE358.4[石油与天然气工程—油气田开发工程]