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Class Information
Number: 166/250.03
Name: Wells > Processes > With indicating, testing, measuring or locating > Determining fluid interface or fluid level
Description: Measuring including the step(s) of indicating a liquid-gas contact or a depth of a gas or liquid within a well.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7614452 |
Flow reversing apparatus and methods of use |
Nov. 10, 2009 |
| 7548681 |
Prevention of optical fiber darkening |
Jun. 16, 2009 |
| 7445043 |
System and method for detecting pressure disturbances in a formation while performing an operation |
Nov. 4, 2008 |
| 7445934 |
System and method for estimating filtrate contamination in formation fluid samples using refractive index |
Nov. 4, 2008 |
| 7373976 |
Well production optimizing system |
May. 20, 2008 |
| 7281422 |
Method for borehole conductivity profiling |
Oct. 16, 2007 |
| 7240730 |
Use of fiber optics in deviated flows |
Jul. 10, 2007 |
| 7066256 |
Apparatus and method of detecting interfaces between well fluids |
Jun. 27, 2006 |
| 6997256 |
Use of fiber optics in deviated flows |
Feb. 14, 2006 |
| 6910374 |
Borehole conductivity profiler |
Jun. 28, 2005 |
| 6892815 |
Coal bed methane borehole pipe liner perforation system |
May. 17, 2005 |
| 6866098 |
Method for controlling a producing zone of a well in a geological formation |
Mar. 15, 2005 |
| 6843119 |
Apparatus for measuring and recording data from boreholes |
Jan. 18, 2005 |
| 6802373 |
Apparatus and method of detecting interfaces between well fluids |
Oct. 12, 2004 |
| 6758277 |
System and method for fluid flow optimization |
Jul. 6, 2004 |
| 6705397 |
Liquid level detection for artificial lift system control |
Mar. 16, 2004 |
| 6702028 |
Apparatus and method for producing oil and gas |
Mar. 9, 2004 |
| 6684952 |
Inductively coupled method and apparatus of communicating with wellbore equipment |
Feb. 3, 2004 |
| 6659176 |
Method for monitoring remediation of non aqueous phase solution |
Dec. 9, 2003 |
| 6651739 |
Medium frequency pseudo noise geological radar |
Nov. 25, 2003 |
| 6634426 |
Determination of plunger location and well performance parameters in a borehole plunger lift system |
Oct. 21, 2003 |
| 6547004 |
Method and apparatus for sampling low-yield wells |
Apr. 15, 2003 |
| 6536522 |
Artificial lift apparatus with automated monitoring characteristics |
Mar. 25, 2003 |
| 6516879 |
Liquid level detection for artificial lift system control |
Feb. 11, 2003 |
| 6502634 |
Interface monitoring placement system |
Jan. 7, 2003 |
| 6481499 |
Well-bottom gas separator |
Nov. 19, 2002 |
| 6470967 |
Sampling device |
Oct. 29, 2002 |
| 6467543 |
System and process for secondary hydrocarbon recovery |
Oct. 22, 2002 |
| 6456201 |
Method and apparatus for measuring groundwater levels |
Sep. 24, 2002 |
| 6415864 |
System and method for separately producing water and oil from a reservoir |
Jul. 9, 2002 |
| 6412555 |
System and method for controlling fluid flow in one or more oil and/or gas wells |
Jul. 2, 2002 |
| 6408691 |
Well monitoring system |
Jun. 25, 2002 |
| 6374669 |
Water influx identification |
Apr. 23, 2002 |
| 6371204 |
Underground well kick detector |
Apr. 16, 2002 |
| 6352109 |
Method and apparatus for gas lift system for oil and gas wells |
Mar. 5, 2002 |
| 6318463 |
Slickline fluid indentification tool and method of use |
Nov. 20, 2001 |
| 6302204 |
Method of obtaining improved geophysical information about earth formations |
Oct. 16, 2001 |
| 6277286 |
Method and device for the separation of a fluid in a well |
Aug. 21, 2001 |
| 6272915 |
Dual transmitter multi-capacitance flow meter |
Aug. 14, 2001 |
| 6234250 |
Real time wellbore pit volume monitoring system and method |
May. 22, 2001 |
| 6155347 |
Method and apparatus for controlling the liquid level in a well |
Dec. 5, 2000 |
| 6152226 |
System and process for secondary hydrocarbon recovery |
Nov. 28, 2000 |
| 6138754 |
Method and apparatus for use with submersible electrical equipment |
Oct. 31, 2000 |
| 6085836 |
Well pump control using multiple sonic level detectors |
Jul. 11, 2000 |
| 5996691 |
Control apparatus and method for controlling the rate of liquid removal from a gas or oil well with a progressive cavity pump |
Dec. 7, 1999 |
| 5971069 |
Well completion and production techniques |
Oct. 26, 1999 |
| 5969242 |
Isobaric groundwater well |
Oct. 19, 1999 |
| 5957198 |
Telescoping joint for use in conduit connected wellhead and zone isolating tool |
Sep. 28, 1999 |
| 5905036 |
Characterization of organic contaminants and assessment of remediation performance in subsurface formations |
May. 18, 1999 |
| 5767400 |
Hydraulic test system mounted with borehole television set for simultaneous observation in front and lateral directions |
Jun. 16, 1998 |
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