首页
产品
黄页
商标
征信
会员服务
注册
登录
全部
|
企业名
|
法人/股东/高管
|
品牌/产品
|
地址
|
经营范围
发明名称
SLOTTED EXPANDABLE CENTRALISER
摘要
This invention relates to a slotted expandable centraliser. In preferred embodiments, the centraliser is adapted to be used in conjunction with slotted casing, and can expand with the casing when an expander cone is propelled through the casing.
申请公布号
WO03078789(A1)
申请公布日期
2003.09.25
申请号
WO2003GB01022
申请日期
2003.03.11
申请人
DOWNHOLE PRODUCTS PLC;KIRK, IAN, ALASTAIR;BARRON, WILLIAM;CLARK, ALISTAIR, BERTRAM
发明人
KIRK, IAN, ALASTAIR;BARRON, WILLIAM;CLARK, ALISTAIR, BERTRAM
分类号
E21B43/10;(IPC1-7):E21B43/10
主分类号
E21B43/10
代理机构
代理人
主权项
地址
您可能感兴趣的专利
垢结双酚-酚加合物的结晶冷却器改进除垢方法
柴油机缸套的铸造方法及专用筒体
在对连铸产品进行连续机械切削时探测表面缺陷的方法和装置
乙烯系共聚物组合物及成形品
强制性密封油环
数据传输装置、数据接收装置、数据传输系统和数据传输方法
电动机
Composite binder, process for its manufacture and its use in road pavements
Device and method for transmission of audio data
System and method for providing dynamic noise profile selection for hybrid error diffusion image processing
Cobalt free high speed steels
Call routing
Low coefficient of friction silicone release formulations
Improved peripheral device control in data processing systems
Integrated pulsed propulsion system for microsatellite
Dishwashing machine with supporting structure, composed of horizontal and vertical frame members for a rinsing container
Integral elastic support structure with ornamental elements and method for manufacturing such structure
Method of forming integrated optical circuit planar waveguide turning mirrors
Absorbent article with longitudinal elastic members
Method and apparatus for measuring resistivity of an earth formation