水平井自扶正式电缆牵引器的设计.pdf

石油机械
2015年第43卷第2期
CHINA PETROL EUM MACHINERY
油气田开发工程
水平井自扶正式电缆牵引器的设计
周劲辉张勇李翠2
(1.中国石油大学(北京)石油工程教育部重点实验室2.中石化胜利石油工程有限公司钻井エ艺研究)
摘要:在水平井测井、修井等作业过程中,通过电缆牵引器可将仪器输送至井下准确位蛋,
能大大降低成本,缩短作业时间。针对牵引器在井眼中的牵引カ、越障能力以及井眼适应能力不
足的问题,设计了一种水平井自扶正式电缆牵引器。该牵引器主要由地面控制系统和上、下2组
牵引装置组成。牵引装置的传动齿轮机构啮合性好、传动稳定,牵引器控制灵活;呈120°轴向均
布的3组驱动机构起自扶正作用,能大大縮短牵引器的整体长度,提高牵引器在井下驱动的稳定
性、承载能力和通应井眼能力,增强牵引器在井下作业的柔性弯曲适应能力和越障能カ。
关键词:水平井;电缆牵引器;自扶正;驱动轮;120°轴旬均布;双驱双控
中图分类号:TE927文献标识码:Adoi:10.16082/j.cnki,isa1001-4578.2015.02.017
Design of Self-righting Cable Tractor in Horizontal Well
ou Inht
(1.OE Key bror f Petrleum ngin, China Uniwersity of Petroleum(Beijing); 2 Drilling Technology Research In-
stitute, Shengli Oilfield Service Corporation, SINOPEC)
Abstract Instruments can be conveyed to an accurate downhole position by using a cable tractor during log-
ging, workover and other operations of horizontal wells, with greatly reduced costs and less operation
time. Considering insufficient traction force, over-obstacle capacity and wellbore applicability of the cable Tractor
a self-righting cable tractor is designed for horizontal wells, The cable tractor mainly consists of ground control sys
tem and two groups of traction gears(the upper and the lower).The traction gear can realize proper engagement of
drive gear mechanism, stable drive and flexible tractor control; three groups of drive mechanisms uniformly dis
tributed by 120 can play a role of self-righting to greatly reduce overall length of the tractor, improve the stability
bearing capacity and welbore applicability of the tractor during downhole driving, and enhance the flexible bending
applicability and over-obstacle capacity of the tractor in downhole operations
Key words horizontal well; cable tractor; self-righting; driving wheel; axial uniform distribution; double-
drive double-control
时间和成本。
言
1996年由 Statoil公司、 Maritime油井服务公司
和 Welltec公司共同开发了 Welletc轮式水平并电缆
随着水平井和大位移井等钴井技术的迅猛发牵引器,并成功投入使用2-1; Smar Tract公司的
展,井眼条件越来越复杂,修井和测井等井下仪器伸缩式电缆牵引器和 Sondex有限公司的 Sondex电
的下人也变得越来越困难-2。电缆牵引器可方便缆牵引器最为突出。国内对于井下电缆牵引器的研
快捷地将仪器送到井下准确位置,节省大量的作业究较晚,主要处于理论研究和设计试验阶段?。
*基金项目:国家科技重大专项“复杂结构井优化设计与控制关键技术”(2011ZX05009-005);国家自然科学基金创新研究群体项目
“复杂油气井钻井与完井基础研究”(51221003)。