发明名称 |
DOWNHOLE SAMPLER AND METHOD OF WELL SAMPLING |
摘要 |
FIELD: oil and gas industry. ^ SUBSTANCE: invention refers to downhole analysis of underground bed. Specifically invention refers to sampling through perforations in well bore leading to the underground bed. Method and device for caving reduction in perforation formed in well bore and leading from well bore to underground bed are offered. The well bore contains the device body with the lever moving forward. The perforation contains one or more caving block units mounted by using the lever. Caving block unit is designed so that to prevent caving from base fluid to the body through perforation. ^ EFFECT: reduced contamination of base fluid. ^ 31 cl, 20 dwg |
申请公布号 |
RU2348807(C2) |
申请公布日期 |
2009.03.10 |
申请号 |
RU20040122778 |
申请日期 |
2004.07.23 |
申请人 |
SHLJUMBERGER TEKNOLODZHI BV |
发明人 |
FILDZ TROJ |
分类号 |
E21B49/10;E21B33/138;E21B43/11;E21B49/06 |
主分类号 |
E21B49/10 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|