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Piston float equipment
专利权人:
Weatherford Technology Holdings, LLC
发明人:
Morrison Jeffery
申请号:
US201414509938
公开号:
US9915124(B2)
申请日:
2014.10.08
申请国别(地区):
美国
年份:
2018
代理人:
Patterson & Sheridan, L.L.P.
摘要:
A valve includes a housing having a bore. The valve further includes a piston member movable between a first position permitting fluid passage through the bore and a second position obstructing the bore through the housing. Additionally, the valve includes a biasing member configured to bias the piston member toward the second position. A method of using a valve in a cementing operation is provided.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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