| |
 |
|
Class Information
Number: 166/250.01
Name: Wells > Processes > With indicating, testing, measuring or locating
Description: Process including a step of: providing evidence of a condition; e.g., leak, oil-gas interface; performing an analysis; e.g., downhole pressure; counting; or determining the position of an object or formation.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 5482122 |
Oriented-radial-cores retrieval for measurements of directional properties |
Jan. 9, 1996 |
| 5477505 |
Downhole pipe selection for acoustic telemetry |
Dec. 19, 1995 |
| 5469917 |
Use of capillary-membrane sampling device to monitor oil-drilling muds |
Nov. 28, 1995 |
| 5467823 |
Methods and apparatus for long term monitoring of reservoirs |
Nov. 21, 1995 |
| 5464058 |
Method of using a polished rod transducer |
Nov. 7, 1995 |
| 5456316 |
Downhole signal conveying system |
Oct. 10, 1995 |
| 5415232 |
Method and apparatus for ramping of stimulation chemical concentrations for treatment of subterranean formations |
May. 16, 1995 |
| 5413174 |
Signal transmission through deflected well tubing |
May. 9, 1995 |
| 5412568 |
Remote programming of a downhole tool |
May. 2, 1995 |
| 5375658 |
Shut-in tools and method |
Dec. 27, 1994 |
| 5357797 |
Method and apparatus for correcting MWD porosity measurement |
Oct. 25, 1994 |
| 5355952 |
Method and device for establishing an intermittent electric connection with a stationary tool in a well |
Oct. 18, 1994 |
| 5353872 |
System, support for carrying out measurings and/or servicings in a wellbore or in a well in the process of being drilled and uses thereof |
Oct. 11, 1994 |
| 5335732 |
Oil recovery combined with injection of produced water |
Aug. 9, 1994 |
| 5319966 |
Determining location and composition of liquid contaminants in geologic formations |
Jun. 14, 1994 |
| 5318125 |
Method for continuing measurements after recovery of a measuring tool immobilized in a well |
Jun. 7, 1994 |
| 5313829 |
Method of determining drillstring bottom hole assembly vibrations |
May. 24, 1994 |
| 5305830 |
Method and device for carrying out measurings and/or servicings in a wellbore or a well in the process of being drilled |
Apr. 26, 1994 |
| 5293937 |
Acoustic system and method for performing operations in a well |
Mar. 15, 1994 |
| 5259452 |
System for sensing acoustic waves in wells, allowing the mechanical uncoupling of the sensors |
Nov. 9, 1993 |
| 5253518 |
Apparatuses and methods for adjusting a material's fluid content and effective stresses |
Oct. 19, 1993 |
| 5249461 |
Method for testing perforating and testing an open wellbore |
Oct. 5, 1993 |
| 5244040 |
Method and apparatus to determine wellhead level |
Sep. 14, 1993 |
| 5234053 |
Reeled tubing counter assembly and measuring method |
Aug. 10, 1993 |
| 5212354 |
Apparatus and method for detecting seismic waves in a borehole using multiple clamping detector units |
May. 18, 1993 |
| 5210533 |
Apparatus and method for positioning a tool in a deviated section of a borehole |
May. 11, 1993 |
| 5205165 |
Method for determining fluid influx or loss in drilling from floating rigs |
Apr. 27, 1993 |
| 5176207 |
Underground instrumentation emplacement system |
Jan. 5, 1993 |
| 5123492 |
Method and apparatus for inspecting subsurface environments |
Jun. 23, 1992 |
| 5113941 |
Surface sand detection monitoring device and method |
May. 19, 1992 |
| 5113942 |
Method of opening cased well perforations |
May. 19, 1992 |
| 5105881 |
Formation squeeze monitor apparatus |
Apr. 21, 1992 |
| 5095982 |
Method of characterizing the flowpath for fluid injected into a subterranean formation |
Mar. 17, 1992 |
| 5095983 |
Multiphase production evaluation method using thru-tubing, wireline packoff devices |
Mar. 17, 1992 |
| 5081613 |
Method of identification of well damage and downhole irregularities |
Jan. 14, 1992 |
| 5062482 |
Piezometer actuator device and method for its installation in a borehole |
Nov. 5, 1991 |
| 5063519 |
Landfill gas production testing and extraction method |
Nov. 5, 1991 |
| 5016712 |
Method and apparatus for locating solvent injection apparatus within a natural gas wellbore |
May. 21, 1991 |
| 4997313 |
Process for in-situ surfactant washing of contaminated soil |
Mar. 5, 1991 |
| 4953618 |
Injection manifold and method |
Sep. 4, 1990 |
| 4949575 |
Formation volumetric evaluation while drilling |
Aug. 21, 1990 |
| 4942923 |
Apparatus for isolating a testing zone in a bore hole screen casing |
Jul. 24, 1990 |
| 4928758 |
Downhole wellbore flowmeter tool |
May. 29, 1990 |
| 4914432 |
Apparatus for locating a member in a borehole |
Apr. 3, 1990 |
| 4890672 |
Method of controlling the flow of landfill gas from sanitary landfills and apparatus for performing the method |
Jan. 2, 1990 |
| 4890671 |
Polished rod liner puller assembly |
Jan. 2, 1990 |
| 4879695 |
Method of locating a member in a borehole |
Nov. 7, 1989 |
| 4862962 |
Matrix treatment process for oil extraction applications |
Sep. 5, 1989 |
| 4834194 |
Method and apparatus for detection of volatile soil contaminants in situ |
May. 30, 1989 |
| 4821801 |
Producing asphaltic crude oil |
Apr. 18, 1989 |
|
|
|
