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
PREVENTING FLUID MIGRATION AROUND A WELL CASING
摘要
申请公布号
EP0197609(B1)
申请公布日期
1992.02.26
申请号
EP19860200570
申请日期
1986.04.03
申请人
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.
发明人
BOL, GERARDUS MARIA;MEIJS, FRANCISCUS HENDRIKUS;SCHOUTEN, FREDERIC CORNELIS;STEWART, ROBERT BRUCE;DE ROO, PETRUS CORNELIS
分类号
E21B33/14
主分类号
E21B33/14
代理机构
代理人
主权项
地址
您可能感兴趣的专利
DEFECT DETECTING DEVICE
NUCLEAR FUEL ASSEMBLY
ALUMINIUM-MODIFIED SILICA AND ITS USES AS CATALYST
APPARATUS AND METHOD FOR MANUFACTURING ADHESIVE COVERS
A PROCESS AND APPARATUS FOR PRODUCING CONFERENCE CONNECTIONS IN A PCM TIME MULTIPLEX SWITCHING SYSTEM
COFFEE CAPSULES
PROCESS FOR THE TREATMENT OF MOLTEN IRON
CATHETER PLACEMENT ASSEMBLY HAVING AXIAL AND ROTATIONAL ALIGNMENT MEANS
NOVEL ESTERS
THREADED CONNECTIONS
SUBSTITUTED AMINOALKYL GUANIDINES
ROTARY WEIGHT SIZER
METHOD OF DISCRIMINATING LIGHT MATTER
NOZZLEEASSEMBLY FOR ELECTROSTATIC SPRAY GUN
IMPROVED PULVERIZING*MIXING OR DISPERSING DEVICE
PRODUCTION OF ANDROSTANE COMPOUND BY FERMENTATION
DEVICE FOR SELECTING RICE BRAN OF RICE CLEANING
ANALYSIS OF LACTATE DEHYDROGENASE
PRODUCTION OF ARTIFICIAL SOIL
AUTOMATIC LIFTING DEVICE OF SOIL TREATING MACHINE