公开(公告)号：CA2741779A1

公开(公告)日：2010-05-27

申请号：CA2741779

申请日：2009-10-12

Applicant: EXXONMOBIL UPSTREAM RES CO

Inventor： YUNG TIN-WOO ,  HE HAIPING ,  SANDSTROM ROBERT E

IPC: G01L27/00

Abstract: The present invention discloses apparatuses, systems, and methods for controlling liquid impact pressure in liquid impact systems. The liquid impact systems include at least one gas and a liquid, the gas having a density (PG) and a polytropic index (?) and the liquid having a density (PL). The methods include the step of calculating a liquid impact load of the liquid on the object by determining a parameter ? for the system, wherein ? is defined as (PG/PL)(?-1)/?. The systems are also configured to utilize the parameter ?. The parameter ? may be adjusted to increase or reduce the liquid impact load on the system. Automatic, computer-implemented systems and methods may be used or implemented. These methods and systems may be useful in applications such as LNG shipping and loading/off-loading, fuel tank operation, manufacturing processes, vehicles dynamics, and combustion processes, among others.

公开(公告)号：CA2700749A1

公开(公告)日：2009-04-09

申请号：CA2700749

申请日：2008-08-29

Applicant: EXXONMOBIL UPSTREAM RES CO

Inventor： SRNKA LEONARD J ,  NEDWED TIMOTHY J ,  THOMANN HANS ,  SANDSTROM ROBERT E

IPC: G01V5/00

Abstract: Methods for detecting a liquid under a surface and characterizing Ice are provided The liquid may be a liquid hydrocarbon such as crude oil or fuel oil or mineral oil The surface may be ice, snow, or water, and the method may be practiced in an arctic region to detect oil spills, leaks, or seepages The methods may be used with a range finder to characterize marine ice The methods may include a nuclear magnetic resonance (NMR) tool with antenna to send a radio-frequency (RF) excitation pulse or signal into volume of substances being detected, detect an NMR response signal to determine the presence of the liquid of interest The NMR response may include a relaxation time element and an intensity level and may include a free induction signal (T2*), a spin echo signal (T2), a train of spin echo signals (T2), or a thermal equilibrium signal (T 1).