| Class 166 | WELLS |
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![[List of Pre Grant Publications for class 166 subclass 335]](../as.gif) | ![[List of Patents for class 166 subclass 335]](../ps.gif) | 335 | SUBMERGED WELL |
| | 336 |  Testing |
| | 338 | Connection or disconnection of submerged members remotely controlled |
| | 339 |  With provision for removal or repositioning of member without removal of other well structure |
| | 340 | Disconnection |
| | 341 | With orienting or aligning of member for connection |
| | 344 | Connection to provide fluid flow path |
| | 345 |  Connection of riser-and-tubing assembly to other structure |
| | 346 | Yieldable tubing |
| | 347 | Connection of lateral flow line |
| | 348 | Connection of pipe hanging |
| | 349 | Connection of guide means |
| | 350 | Submerged, buoyant wellhead or riser |
| | 351 | Means removably connected to permanent well structure |
| | 352 | Surface vessel |
| | 353 | Having means to move vessel to precise location |
| | 354 | Having means to hold vessel at given location (e.g., anchor, etc.) |
| | 355 | With means to compensate for vessel movement |
| | 356 | Means to provide protective environment for operative access below surface of water |
| | 357 | Separator |
| | 358 | Drilling means |
| | 359 | Removable riser |
| | 360 | Well component assembly means |
| | 361 | Pipe cutting means |
| | 363 | With safety or emergency shutoff |
| | 364 | Including disaster feature |
| | 365 | With provision for disassembly |
| | 366 | Multiple wells |
| | 367 | Riser |
| | 368 | Wellhead |
| | 244.1 | PROCESSES |
| | 245 | Specific pattern of plural wells |
| | 246 | Using microorganisms |
| | 247 | Nuclear energy or radioactivity for treating |
| | 248 | Electric current or electrical wave energy through earth for treating |
| | 249 | Vibrating the earth or material in or being placed in the earth pores |
| | 250.01 | With indicating, testing, measuring or locating |
| | 251.1 | Including in situ combustion |
| | 252.1 | Including production of earth fluid by driving fluid |
| | 252.2 | Residual oil or oil saturation |
| | 252.3 | Salinity or acidity |
| | 252.4 | Flood front |
| | 252.5 | Permeability or viscosity |
| | 252.6 | And tracing material |
| | 253.1 | Indicating the location, presence, or absence of cement |
| | 254.1 | Determining position of earth zone or marker |
| | 255.1 | Determining position of object in well |
| | 250.02 | Permeability determining |
| | 250.03 | Determining fluid interface or fluid level |
| | 250.04 | Plug indicating or releasing |
| | 250.05 | Scale or corrosion determination |
| | 250.06 | Steam quality |
| | 250.07 | Bottom hole pressure |
| | 250.08 | Leak testing or locating |
| | 250.09 | Impression means |
| | 250.1 | Fracturing characteristic |
| | 250.11 | Holder for coupon or sensor |
| | 250.12 | Tracer |
| | 250.13 | Determining stuck point |
| | 250.14 | Of cementing or plugging technique |
| | 250.15 | Automatic control for production |
| | 250.16 | Prospecting |
| | 250.17 | Including testing or treating tool having at least one actuatable packer |
| | 256 | In situ combustion |
| | 257 | Injecting while producing by in situ combustion from same well |
| | 258 | Plural distinct superimposed formations |
| | 259 | Including fracturing or attacking formation |
| | 260 | Injecting specific fuel or catalyst for burning into formation |
| | 261 | Injecting specific material other than oxygen into formation |
| | 262 | Solid fuel or particles in well |
| | 264 | Sampling well fluid |
| | 265 | Separating material entering well |
| | 268 | Distinct, separate injection and producing wells |
| | 270 | Injecting a composition to adjust the permeability (e.g., selective plugging) |
| | 270.1 | Injecting a composition including a surfactant or cosurfactant |
| | 400 | Sequentially injected separate fluids (e.g., slugs) |
| | 272.1 | Involving the step of heating |
| | 272.2 | In association with fracturing or crevice forming processes |
| | 272.3 | Steam as drive fluid |
| | 272.4 |  In combination with alkyls or carbon chains |
| | 272.5 | With override zone, diverting, or path blocking operation |
| | 272.6 | Liquid material injected |
| | 272.7 | Horizontal well |
| | 271 | Including fracturing or attacking formation |
| | 269 | Fluid injected from longitudinally spaced locations in injection well |
| | 275 | Injected fluid comprises water and material other than inorganic gas |
| | 263 | Cyclic injection then production of a single well |
| | 276 | Providing porous mass of adhered filter material in well |
| | 277 | Repairing object in well |
| | 278 | Graveling or filter forming |
| | 279 | Material placed in pores of formation to treat resident fluid flowing into well |
| | 280.1 | Specific propping feature (EPO) |
| | 281 | Separate steps of (1) cementing, plugging or consolidating and (2) fracturing or attacking formation |
| | 282 | Specific low fluid loss feature for fluid attacking formation |
| | 283 | Specific low fluid loss feature for fracturing fluid or cement causes fracture |
| | 284 | Fluid flow causes pellet to block opening in wall of conduit |
| | 285 | Cementing, plugging or consolidating |
| | 286 | Tamping, vibrating, exploding or using receptacle |
| | 287 | Removable molding or forming means |
| | 288 | Including heating |
| | 289 | Discharging cement from casing at different levels |
| | 290 | By tubing which is subsequently lifted |
| | 291 | With piston separator |
| | 292 | Using specific materials |
| | 296 | Preventing flow into strainer while lowering by blocking openings |
| | 297 | Perforating, weakening, bending or separating pipe at an unprepared point |
| | 299 | With explosion or breaking container to implode |
| | 300 | Chemical inter-reaction of two or more introduced materials (e.g., selective plugging or surfactant) |
| | 301 | Freeing stuck object, grappling or fishing in well |
| | 302 | Heating, cooling or insulating |
| | 304 | Dissolving or preventing formation of solid oil deposit |
| | 305.1 | Placing fluid into the formation |
| | 309 | Producing foam or gas in well by foaming or gas producing material |
| | 310 | Entraining or incorporating treating material in flowing earth fluid |
| | 311 | Cleaning or unloading well |
| | 313 | Parallel string or multiple completion well |
| | 369 | Producing the well |
| | 370 | Including varying downhole pressure |
| | 371 | Including non-expulsive material placed in well |
| | 372 | By fluid lift |
| | 373 | Operating valve, closure, or changeable restrictor in a well |
| | 376 | Destroying or dissolving well part |
| | 377 | Disassembling well part |
| | 378 | Assembling well part |
| | 381 | Placing or shifting well part |
| | 50 | WELLS WITH LATERAL CONDUITS |
| | 51 | MEANS FOR FORMING FILTER BEDS (E.G., GRAVEL PLACING) |
| | 52 | PLURAL WELLS |
| | 53 | AUTOMATIC |
| | 54.1 | WITH MEANS FOR SEPARATELY PUMPING FROM PLURAL SOURCES IN WELL |
| | 54.5 | MEANS FOR CUTTING CABLE OR ROPE BELOW GROUND |
| | 55 | MEANS FOR PERFORATING, WEAKENING, BENDING OR SEPARATING PIPE AT AN UNPREPARED POINT |
| | 55.1 | With disparate below ground feature |
| | 55.2 | Perforating or splitting cutter |
| | 55.6 | Cutter rotates circumferentially of pipe |
| | 56 | SCREEN AND OUTSIDE CLEANING PIPE |
| | 57 | WITH HEATING, REFRIGERATING OR HEAT INSULATING MEANS |
| | 58 | Fuel supply or hot billet in well |
| | 59 | Burner in well |
| | 60 | Electrical heater in well |
| | 61 | Heater surrounding production tube |
| | 62 | With eduction pump or plunger in well |
| | 63 | WITH EXPLOSIVE OR GAS GENERATING MEANS IN WELL |
| | 64 | WITH TIME OR DISTANCE MEASURING, TEMPERATURE RESPONSIVE OR COUNTING MEANS |
| | 65.1 | WITH ELECTRICAL MEANS |
| | 67 | WITH BELOW AND ABOVE GROUND MODIFICATION |
| | 68 | Eduction pump or plunger in well |
| | 69 | With receptacle for insertion into well |
| | 70 | Head for tool, piston or cleaner (e.g., cement head) |
| | 71 | With above ground casing sinking means |
| | 72 | Above ground actuating means for below ground device |
| | 74 | With below ground screen |
| | 75.11 | ABOVE GROUND APPARATUS |
| | 76.1 | Having structure for converting from one mode of operation to another; e.g., valve to packer |
| | 77.1 | Moving tubing or cable into an existing well |
| | 77.51 | With means facilitating connecting or disconnecting supported tubing or rod sections |
| | 85.1 | With assembly or disassembly means (e.g., handling, guiding, or tool feature) |
| | 85.2 | Pitless well adapters |
| | 85.3 | Seal or bushing insertion or removal |
| | 85.4 | With blowout preventer |
| | 85.5 | Guiding or aligning feature |
| | 86.1 | Inner member anchor or seal with valve |
| | 86.2 | Annular sealing type valve |
| | 86.3 | Gate type (perpendicular to pipe) valve |
| | 87.1 | Axially movable type valve |
| | 88.1 | Inner member anchor or seal with lateral port |
| | 89.1 | Plural inner pipes |
| | 88.2 | Slip type well anchor |
| | 88.4 | With hydraulic conduit or line extending through outer member |
| | 78.1 | With tube rotating means (rotary tables) |
| | 79.1 | Cap having transporting means or ground support |
| | 80.1 | Having retractable pipe section to allow closing of gate type valve or flapper valve for rod or pipe |
| | 81.1 | Fluid catcher around pipe coupling |
| | 82.1 | Releasable seal or cleaner disengaged by projection on inner member |
| | 84.1 | With seal for reciprocating member |
| | 84.2 | Cooling fluid or grease supplied to seals |
| | 84.3 | Rotary blowout preventer type |
| | 84.4 | Fluid pressure actuated seals |
| | 84.5 | Seal fixedly mounted to rod |
| | 90.1 | With means for inserting fluid into well |
| | 75.15 | With means for injecting solid or particulate material into the well |
| | 91.1 | With flow restrictions (e.g., chokes or beans) |
| | 92.1 | Cap or head pivotably attached to tube or casing |
| | 93.1 | Split cap or head |
| | 94.1 | Laterally adjustable cap or head |
| | 95.1 | Central valve or closure and lateral port |
| | 96.1 | External anchoring or bracing means |
| | 97.1 | With valve on cap or head |
| | 75.13 | Well caps or casing heads |
| | 75.14 | Suspension means |
| | 75.12 | Treatment of produced fluids |
| | 97.5 | Parallel pipes extending along distinct paths through wellhead |
| | 98 | GRAPPLE AND WELL ANCHORED LIFTING MEANS |
| | 99 | WITH JUNK RETRIEVING MEANS |
| | 100 | LATERAL PROBE OR PORT SEALED AGAINST WELL WALL |
| | 101 | PACKER OR PLUG AND PUMP OR PLUNGER MEANS EXERTING OUTWARD PRESSURE |
| | 102 | CONVERTIBLE |
| | 104 | WITH MOTOR FOR ROTARY OR OSCILLATING MOTION |
| | 105 | WITH EDUCTION PUMP OR PLUNGER |
| | 105.1 | Having sediment trap or deflector |
| | 105.2 | Carried by reciprocating plunger or plunger rod |
| | 105.3 | Sediment trap formed in pumping chamber |
| | 105.4 | In pump discharge flow path |
| | 105.5 | Having liquid-gas separator |
| | 106 | With packer or plug |
| | 107 | Receptacles |
| | 108 | Piston actuates foot valve |
| | 109 | Telescoping |
| | 110 | Lateral port always below piston and used in well |
| | 111 | Bail engaging piston rod |
| | 112 | With leak means |
| | 113 | COMBINED (E.G., WITH NON-ELECTRICAL INDICATING) |
| | 114 | CENTRAL MEMBER WITH PRE-SET PACKER OR PLUG IN SAME CONDUIT |
| | 115 | CENTRAL CHAMBER SEALED WITH RESPECT TO PREPOSITIONED MODIFIED SURROUNDING CONDUIT |
| | 117 | RECEPTACLE OR PART THEREOF LEFT IN WELL |
| | 117.5 | MEANS FOR GUIDING INSERTABLE ELEMENT LATERALLY OF WELL AXIS (E.G., WHIPSTOCK) |
| | 117.7 | MEANS ANCHORED AGAINST ROTATION IN ONE CONDUIT SECTION FOR RELATIVELY ROTATING ANOTHER SECTION |
| | 179 | PACKERS OR PLUGS |
| | 118 | With expanding anchor |
| | 119 | Relatively movable packers or plugs |
| | 120 | Anchor actuated by fluid pressure |
| | 121 | Pressure transmitted by cup type packer or plug seal |
| | 122 | Pressure transmitted by packer or plug expanded by confined fluid from central chamber, pump, or plunger |
| | 123 | With detachable setting means |
| | 126 | With controllable passage between central chamber and space below packer |
| | 129 | With controllable bypass outside central conduit |
| | 131 | With controllable passage between central conduit and space above packer or plug |
| | 132 | Portion extends beyond end of surrounding conduit |
| | 133 | With controllable passage through packer |
| | 134 | Support and holddown expanding anchors |
| | 135 | Flow stopping type, e.g., plug |
| | 136 | Spring set anchor |
| | 138 | Wedge or cam and friction drag |
| | 141 | Sealing portion closes port between central pipe and outside space when unexpanded |
| | 142 | With controllable passage between central chamber and space below packer |
| | 143 | Central conduit detachable |
| | 145 | Bypass closing and passage opening to upward flow constrained to occur simultaneously |
| | 146 | Passage connects with space below packers and continuously open passageway connects with space between packers |
| | 147 | Passage connects with space between packer or plug seals |
| | 148 | Upwardly biased check valve and means for opening or bypassing it |
| | 149 | With passageway between central chamber and space above packer |
| | 150 | Passageway controllable by movement of central chamber |
| | 151 | Passageway valve directly responsive to fluid pressure |
| | 152 | Passage controllable by movement of central chamber |
| | 180 | Adjustable over pipe or set over prepositioned pipe |
| | 181 | With detachable setting means |
| | 183 | With controllable bypass outside central conduit |
| | 184 | With controllable passage between central conduit and space above packer or plug |
| | 185 | With central conduit and fluid port to space outside |
| | 187 | Expanded by confined fluid from central chamber, pump or plunger |
| | 188 | Controllable passage through packer |
| | 189 | For non-concentric members |
| | 191 | Spaced sealing portions |
| | 192 | Flow stopping type; e.g., plug |
| | 195 | Deformable portion engages conduit restriction |
| | 196 | Central support has shoulders expanding sealing portion, or telescopes |
| | 202 | Cup type |
| | 203 | Non-deformable type |
| | 153 | PISTONS, FLUID DRIVEN INTO WELL (E.G., CEMENTING PLUGS) |
| | 154 | Surrounding conduit valve or closure opened by piston |
| | 155 | With downflow past piston |
| | 156 | With stop |
| | 157 | SCREEN WITH WASHING POINT OR SHOE |
| | 162 | RECEPTACLES |
| | 163 | With separate air chamber having openable passage |
| | 164 | With destroyable closure and valve |
| | 165 | With valved or closed top |
| | 166 | Valve control means contacting well conduit wall |
| | 167 | Bottom receiving and side discharge valves |
| | 168 | Readily releasable bottom valve |
| | 169 | Lateral ports used in well |
| | 170 | BRUSHING, SCRAPING, CUTTING OR PUNCHING-TYPE CLEANERS |
| | 171 | Perforation cleaners |
| | 172 | Bow spring type |
| | 173 | On tubing or casing |
| | 174 | Retractable on support while lowering |
| | 175 | Reciprocable relative to central member extending from well top |
| | 176 | On sucker rod |
| | 177.1 | SONIC DEVICE |
| | 177.3 | WIPER |
| | 177.4 | CEMENTING DEVICE |
| | 177.5 | HYDRAULIC FRACTURING DEVICE |
| | 177.6 | VIBRATOR |
| | 177.7 | AGITATOR |
| | 178 | WITH JAR MEANS FOR RELEASING STUCK PART |
| | 205 | SCREEN WITH VALVE, CLOSURE, CHANGEABLE RESTRICTOR OR PORTION REMOVABLE IN WELL |
| | 206 | EXPANSIBLE ANCHOR OR CASING |
| | 207 | Expansible casing |
| | 208 | Liner hanger |
| | 209 | Set by wedge or cam at any point by drop only (e.g., tubing catcher) |
| | 212 | Fluid pressure actuated |
| | 213 | Bowed anchor means |
| | 214 | Spring set |
| | 216 | With wedge or cam and friction drag |
| | 217 | Expansible means translated by wedge or cam |
| | 222 | WHIRLING OR LATERAL DISCHARGE OR PROJECTABLE NOZZLES |
| | 316 | VALVES, CLOSURES OR CHANGEABLE RESTRICTORS |
| | 317 | Destructible element |
| | 318 | Operated by dropped element |
| | 319 | Fluid operated |
| | 320 | Variably opened |
| | 321 | Fluid pressure biased to open position position |
| | 325 | One way, e.g., check valve type |
| | 329 | Loose ball closure with limited reverse flow |
| | 330 | Rotated operator |
| | 332.1 | Longitudinally movable operator |
| | 227 | SCREENS |
| | 228 | Porous material |
| | 229 | Inserted screen plug |
| | 230 | Woven mesh |
| | 231 | Spiral |
| | 234 | Strip or rod |
| | 235 | Stacked annular sections |
| | 236 | Concentric pipes |
| | 237 | DETENTS OR CLUTCHES |
| | 238 | Flow permitting means bridging fluid conduit |
| | 239 | Operated by dropped weight |
| | 240 | Lug in closed branched slot |
| | 241.1 | GUIDE FOR DEVICE OR CONDUIT |
| | 241.2 | On sucker or pump rod |
| | 241.5 | For a wireline operation |
| | 241.6 | Surrounding existing device or tubing |
| | 242.1 | CONDUIT WALL OR SPECIFIC CONDUIT END STRUCTURE |
| | 242.2 | Flexible tube or cable |
| | 242.3 | Plural, parallel, nonconcentric conduits |
| | 242.4 | Corrosion prevention or deterring |
| | 242.5 | Side entry |
| | 242.6 | Downhole coupling or connector |
| | 242.8 | Shoe detail |
| | 242.9 | Brick or cement casing liner |
| | 243 | MISCELLANEOUS (E.G., ANCHOR PIPES) |
| CROSS-REFERENCE ART COLLECTIONS | ||
| | 901 | WELLS IN FROZEN TERRAIN |
| | 902 | FOR INHIBITING CORROSION OR COATING |
| FOREIGN ART COLLECTIONS | ||
| FOR000 | CLASS-RELATED FOREIGN DOCUMENTS |
| Any foreign patents or nonpatent literature from subclasses that have been reclassified have been transferred directly to the FOR Collection listed below. These collections contain ONLY foreign patents or nonpatent literature. The parenthetical references in the collection titles refer to the abolished subclasses from which these COLLECTIONS were derived. | ||
| PROCESSES (166/244.1) |