深井特殊结构井打捞解卡作业技术研究  

THE RESEARCH AND APPLICATION OF RELEASING-STUCK TECHNIQUE IN DEEP AND COMPLICATED TRAJECTORY WELLS

作　　者：郭建国[1] 乔晶[2] 

机构地区：[1]辽河石油勘探局工程技术研究院 [2]辽河油田分公司钻采院

出　　处：《钻采工艺》2004年第5期84-87,共4页Drilling & Production Technology

基　　金：中国石油天然气集团公司重点科技工程项目<水平井;侧钻井修井工具及工艺技术研究>研究成果;项目编号:03B11404。井下液压增力打捞解卡工具已获国家专利;专利号:ZL022755136。

摘　　要：针对辽河油田深井、特殊结构井打捞作业存在的实际问题,分析深井、特殊结构井打捞解卡作业的技术难点,在此基础上研制了井下液压增力打捞解卡工具,经室内及现场试验证明,可产生1200kN液压解卡力,且直接作用在落鱼上而不增加上部打捞管柱及作业设备提升系统负荷,可实现打捞作业“小修代大修”,具有广阔的应用前景及实用价值。The workover can not be effectively realized by the conventional downhole operations and tools owing to complex bore structure,high deviation angle and small wellbore size in the deep well and exceptional wells.This paper presents the actual problems existent in fishing operations of the exceptional wells and deep wells,and analyses the technical difficulty of fishing operations on the basis of these cases,the downhole hydraulic boost releasing tool has been developed.It can produce 1200kN hydraulic releasing stuck force and act directly on the fish,instead of adding additional load on the lifting system including upper fishing string and operating equipment on the wellsite,so that the normal downhole fishing operations can be replaced by this workover technology.

关 键 词：打捞解卡作业 井下作业 辽河油田 深井 井身结构 解卡力 

分 类 号：TE286[石油与天然气工程—油气井工程]