Invention Grant
- Patent Title: Acoustic determination of piston position in a modular dynamics tester displacement pump and methods to provide estimates of fluid flow rate
- Patent Title (中): 模块化动力试验仪位移泵中活塞位置的声学测定和流体流量估计的方法
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Application No.: US13935182Application Date: 2013-07-03
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Publication No.: US09341169B2Publication Date: 2016-05-17
- Inventor: Anthony R. H. Goodwin , Audrey Apoteker , Sylvain Bedouet , Frederic Jacqueme
- Applicant: Schlumberger Technology Corporation
- Applicant Address: US TX Sugar Land
- Assignee: Schlumberger Technology Corporation
- Current Assignee: Schlumberger Technology Corporation
- Current Assignee Address: US TX Sugar Land
- Agent Kenneth L. Kincaid
- Main IPC: F15B15/28
- IPC: F15B15/28 ; F04B1/00 ; F04B47/04 ; F04B51/00 ; G01S7/52 ; G01S15/10 ; G01S15/88
Abstract:
A method for determining a piston position in a downhole tool, having steps of providing a transducer in the downhole tool, wherein the tool has a piston used to create a vacuum for the downhole tool, providing a transducer tone burst to provide acoustic energy toward the piston, reflecting the transducer tone burst by a surface of the piston, receiving the transducer tone burst at a receiver, calculating time of flight for the transducer tone burst and determining the piston position in the downhole tool based upon the calculated time of flight of the transducer tone burst.
Public/Granted literature
Information query
