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Class Information
Number: 166/244.1
Name: Wells > Processes
Description: A process.
Sub-classes under this class:
| Class Number |
Class Name |
Patents |
| 166/245 |
Specific pattern of plural wells |
328 |
| 166/246 |
Using microorganisms |
180 |
| 166/247 |
Nuclear energy or radioactivity for treating |
20 |
| 166/248 |
Electric current or electrical wave energy through earth for treating |
224 |
| 166/249 |
Vibrating the earth or material in or being placed in the earth pores |
140 |
| 166/250.01 |
With indicating, testing, measuring or locating |
502 |
| 166/256 |
In situ combustion |
116 |
| 166/263 |
Cyclic injection then production of a single well |
121 |
| 166/264 |
Sampling well fluid |
322 |
| 166/265 |
Separating material entering well |
221 |
| 166/268 |
Distinct, separate injection and producing wells |
238 |
| 166/276 |
Providing porous mass of adhered filter material in well |
157 |
| 166/277 |
Repairing object in well |
174 |
| 166/278 |
Graveling or filter forming |
538 |
| 166/279 |
Material placed in pores of formation to treat resident fluid flowing into well |
200 |
| 166/280.1 |
Specific propping feature (epo) |
194 |
| 166/281 |
Separate steps of (1) cementing, plugging or consolidating and (2) fracturing or attacking formation |
280 |
| 166/282 |
Specific low fluid loss feature for fluid attacking formation |
75 |
| 166/283 |
Specific low fluid loss feature for fracturing fluid or cement causes fracture |
129 |
| 166/284 |
Fluid flow causes pellet to block opening in wall of conduit |
49 |
| 166/285 |
Cementing, plugging or consolidating |
404 |
| 166/296 |
Preventing flow into strainer while lowering by blocking openings |
47 |
| 166/297 |
Perforating, weakening, bending or separating pipe at an unprepared point |
548 |
| 166/299 |
With explosion or breaking container to implode |
173 |
| 166/300 |
Chemical inter-reaction of two or more introduced materials (e.g., selective plugging or surfactant) |
831 |
| 166/301 |
Freeing stuck object, grappling or fishing in well |
199 |
| 166/302 |
Heating, cooling or insulating |
499 |
| 166/304 |
Dissolving or preventing formation of solid oil deposit |
197 |
| 166/305.1 |
Placing fluid into the formation |
608 |
| 166/309 |
Producing foam or gas in well by foaming or gas producing material |
228 |
| 166/310 |
Entraining or incorporating treating material in flowing earth fluid |
229 |
| 166/311 |
Cleaning or unloading well |
282 |
| 166/313 |
Parallel string or multiple completion well |
390 |
| 166/369 |
Producing the well |
380 |
| 166/373 |
Operating valve, closure, or changeable restrictor in a well |
366 |
| 166/376 |
Destroying or dissolving well part |
132 |
| 166/377 |
Disassembling well part |
165 |
| 166/378 |
Assembling well part |
116 |
| 166/381 |
Placing or shifting well part |
299 |
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7604049 |
Polymeric composites, oilfield elements comprising same, and methods of using same in oilfield applications |
Oct. 20, 2009 |
| 7553800 |
In-situ filter cake degradation compositions and methods of use in subterranean formations |
Jun. 30, 2009 |
| 7534744 |
Method and composition for preventing or treating lost circulation |
May. 19, 2009 |
| 7494957 |
Energized fluids and methods of use thereof |
Feb. 24, 2009 |
| 7488704 |
Invert drilling fluids for use in drilling in subterranean formations |
Feb. 10, 2009 |
| 7482311 |
Self-destructing filter cake |
Jan. 27, 2009 |
| 7462580 |
Flat rheology drilling fluids |
Dec. 9, 2008 |
| 7455106 |
Polymer protective coated polymeric components for oilfield applications |
Nov. 25, 2008 |
| 7419939 |
Mineral acid enhanced thermal treatment for viscosity reduction of oils (ECB-0002) |
Sep. 2, 2008 |
| 7361628 |
Remote delivery of latex drag-reducing agent without introduction of immiscible low-viscosity flow facilitator |
Apr. 22, 2008 |
| 7278485 |
Method of formulating and using a drilling mud with fragile gels |
Oct. 9, 2007 |
| 7229950 |
Method and composition for enhanced hydrocarbons recovery |
Jun. 12, 2007 |
| 7226895 |
Drilling fluid systems for reducing circulation losses |
Jun. 5, 2007 |
| 7219728 |
Method and apparatus for generating downhole power |
May. 22, 2007 |
| 7185699 |
Water compatible hydraulic fluids |
Mar. 6, 2007 |
| 7172703 |
Method of reclaiming a well completion brine solutions using an organic chelant |
Feb. 6, 2007 |
| 7144512 |
Method of reclaiming brine solutions using an organic chelant |
Dec. 5, 2006 |
| 6926836 |
Treatment of iron sulphide deposits |
Aug. 9, 2005 |
| 6820689 |
Method and apparatus for generating pollution free electrical energy from hydrocarbons |
Nov. 23, 2004 |
| 6250391 |
Producing hydrocarbons from well with underground reservoir |
Jun. 26, 2001 |
| 6131657 |
Method for preventing or inhibiting metal deposition |
Oct. 17, 2000 |
| 6102119 |
Method for installing tubular members axially into an over-pressured region of the earth |
Aug. 15, 2000 |
| 6026900 |
Multiple liner method for borehole access |
Feb. 22, 2000 |
| 5884700 |
Interior coating of gas well tubing |
Mar. 23, 1999 |
| 5787983 |
Methods of delaying well destruction due to subsidence |
Aug. 4, 1998 |
| 5535826 |
Well-head structures |
Jul. 16, 1996 |
| 5403493 |
Noncorrosive scale inhibitor additive in geothermal wells |
Apr. 4, 1995 |
| 5277823 |
Silica scale inhibition |
Jan. 11, 1994 |
| 5207919 |
Metal ion complexes for use as scale inhibitors |
May. 4, 1993 |
| 5112496 |
Methods for inhibition of scale in high brine environments |
May. 12, 1992 |
| 4937002 |
Interpolymers for barium sulphate inhibition |
Jun. 26, 1990 |
| 4931189 |
Methods for inhibition of scale in high brine environments |
Jun. 5, 1990 |
| 4923617 |
Process for inhibiting scale formation |
May. 8, 1990 |
| 4898677 |
Process for inhibiting scale formation and modifying the crystal structure of barium sulfate and other inorganic salts |
Feb. 6, 1990 |
| 4836941 |
Clear brine fluids |
Jun. 6, 1989 |
| 4763729 |
Method for inhibiting corrosion of iron-containing alloy articles in sulfur-containing media |
Aug. 16, 1988 |
| 4671833 |
Process for applying a heat-shrinkable material over sulfur well piping |
Jun. 9, 1987 |
| 4615387 |
Annular gas trap |
Oct. 7, 1986 |
| 4602683 |
Method of inhibiting scale in wells |
Jul. 29, 1986 |
| 4590996 |
Use of polyalkoxy sulfonate surfactants for inhibition of scale formation |
May. 27, 1986 |
| 4585062 |
Method of using rods resistant to hydrosulfuric acid |
Apr. 29, 1986 |
| 4570708 |
Method of using pipes resistant to hydrosulphuric acid |
Feb. 18, 1986 |
| 4513818 |
Method for reducing scale in geothermal systems |
Apr. 30, 1985 |
| 4501674 |
Method for reducing corrosiveness of aqueous fluids |
Feb. 26, 1985 |
| 4490262 |
Method of servicing wellbores |
Dec. 25, 1984 |
| 4481316 |
Method for inhibiting the degradation of an aqueous solution of an acrylamide polymer in a petroleum recovery process |
Nov. 6, 1984 |
| 4465601 |
Composition and method for servicing wellbores |
Aug. 14, 1984 |
| 4454914 |
Method for conditioning geothermal brine to reduce scale formation |
Jun. 19, 1984 |
| 4393163 |
Method for stabilizing an acrylamide polymer in a petroleum recovery process |
Jul. 12, 1983 |
| 4336146 |
Method of thickening heavy brine solutions |
Jun. 22, 1982 |
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