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Class Number: 166 Class Title: WELLS Subclass Subclass Number Title 335 SUBMERGED WELL 336 .Testing 337 ..For leak 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 342 ...Including removable, member mounted guide 343 ...Including means to pull member into position 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 .With indicating, testing, measuring or locating 251 ..Including in situ combustion 252 ..Including production of earth fluid by driving fluid 253 ..Indicating the location, presence or absence of cement 254 ..Determining position of earth zone 255 ..Determining position of object in well 256 .In situ combustionn 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 263 .Cyclic operation of plural wells 264 .Sampling well fluid 265 .Separating material entering well 266 ..Injection and producing wells 267 ..Separating outside of well 268 .Injection and producing wells 269 ..Fluid injected from longitudinally spaced locations in injection well 270 ..Introduced materials chemically inter-react in formation pores or surfactant produced in situ 271 ..Including fracturing or attacking formation 272 ..Including heating 273 ..Three or more separate fluids injected 274 ..Two separate fluids injected 275 ..Injected fluid comprises water and material other than inorganic gas 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 .Specific propping feature for a fracture 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 293 ...Cement or consolidating material contains inorganic water settable and organic ingredients 294 ...Cement or consolidating material is organic or has organic ingredient 295 ....Organic material is resin or resinous 296 .Preventing flow into strainer while lowering by blocking openings 297 .Perforating, weakening, bending or separating pipe at an unprepared point 298 ..Perforating, weakening or separating by mechanical means or abrasive fluid 299 .With explosion or breaking container to implode 300 .Chemical inter-reaction of two or more introduced materials 301 .Freeing stuck object, grappling or fishing in welll 302 .Heating, cooling or insulating 303 ..Placing preheated fluid into formation 304 .Dissolving or preventing formation of solid oil deposit 305.1 .Placing fluid into or fracturing the formation 306 ..Fluid enters and leaves well at spaced zones 307 ..Attacking formation 308 ..Fracturing 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 312 ..Liquid introduced from well top 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 374 ..Operated by fluid pressure controlled above ground 375 ...By auxilliary fluid control line 376 .Destroying or dissolving well part 377 .Disassembling well part 378 .Assembling well part 379 ..Above ground parts 380 ..Conduit 381 .Placing or shifting well part 382 ..Providing support for well part (e.g., hanger or anchor) 383 ..By fluid driven piston 384 ..With bending of tubing 385 ..Flexible cable or wire 386 ..Fluid flow control member (e.g., plug or valve) 387 ..With sealing feature (e.g., packer) 50 WELLS WITH LATERAL CONDUITS 51 MEANS FOR FORMING FILTER BEDS (E.G., GRAVEL PLACING) 52 PLURAL WELLS 53 AUTOMATIC 54 .Float controlled valve 54.1 WITH MEANS FOR SEPARATELY PUMPING FROM PLURAL SOURCES IN WELL 54.5 MEANS FOR CUTTING CABLE OR ROPE BELOW GROUND 54.6 .Cutting means actuated by contacting element suspended in well by cable or rope 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 55.3 ..Wedge or cam actuated 55.6 .Cutter rotates circumferentially of pipe 55.7 ..Internal 55.8 ...Tool moved radially by fluid pressure 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 welll 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 66 .Indicating 66.4 .Electrical motor (e.g., solenoid actuator) 66.5 .Magnetic 67 WITH BELOW AND ABOVE GROUND MODIFICATION 68 .Eduction pump or plunger in well 68.5 ..With above ground (1) motor carried by casing or casing support or (2) well fluid pump 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 73 ..Tubing or casing actuated 74 .With below ground screen 75.1 ABOVEGROUND APPARATUS 76 .Convertible 77 .Forcing tubing or cable into an existing well 77.5 .With means facilitating connecting or disconnecting tubing or rod sections 78 .With tube rotating means 79 .With transporting means or unconnected cap 80 .Retractable pipe section extending through valve 81 .Fluid catcher around pipe coupling 82 .Releasable seal or cleaner for inner member 83 ..Radially inwardly releasable latches 84 .With seal for reciprocating member 85 .With assembly or disassembly means (e.g., handling, guiding or tool feature) 86 .Inner member anchor or seal with valve 87 ..Axially movable valve 88 .Inner member anchor or seal with lateral port 89 ..Plural inner pipes 90 .With nozzle for inserting fluid 91 .With flow restrictors (e.g., chokes or beans) 92 .Cap or head pivoted to tube or casing 93 .Split cap or head 94 .Laterally adjustable cap or head 95 .Central valve or closure and lateral port 96 .External anchoring or bracing means 97 .With valve on cap or head 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 separatorr 105.6 ..Gas fed to entrainment type pump 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 116 .Surrounding conduit carries packer or plug 117 RECEPTACLE OR PART THEREOF LEFT IN WELL 117.5 MEANS FOR GUIDING INSERTABLE ELEMENT LATERALLY OF WELL AXIS (E.G., WHIPSTOCK) 117.6 .Secured in operative position by movable means engaging well conduit (e.g., anchor) 117.7 MEANS ANCHORED AGAINST ROTATION IN ONE CONDUIT SECTION FOR RELATIVELY ROTATING ANOTHER SECTION 118 PACKER OR PLUG 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 124 ..Screw threaded 125 ..Radially movable latch 126 .With controllable passage between central chamber and space below packer 127 ..Spaced packer or plug seals 128 ..Passage controllable by movement of central chamber 129 .With controllable bypass outside central conduit 130 ..Packer expanded by upper valve 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 .Plug 136 .Spring set anchor 137 ..Spring moves anchor slip relative to wedge or cam 138 .Wedge or cam and friction drag 139 ..Threaded element rotated 140 ..Anchor above packer or plug seal 141 PACKER OR PLUG SEALING PORTION CLOSES PORT BETWEEN CENTRAL PIPE AND OUTSIDE SPACE WHEN UNEXPANDED 142 PACKER WITH CONTROLLABLE PASSAGE BETWEEN CENTRAL CHAMBER AND SPACE BELOW PACKER 143 .Central conduit detachable 144 ..Bottom supported casing or screen section 145 .Bypass closing and passage opening to upward flow contrained 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 bypassingg 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 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 158 .Detachable wash pipe 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 AGITATING, WIPING, VIBRATING OR FRACTURING MEANS 178 WITH JAR MEANS FOR RELEASING STUCK PART 179 PACKERS OR PLUGS 180 .Adjustable over pipe or set over prepositioned pipe 181 .With detachable setting means 182 ..Packer or plug locked expanded 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 186 ..Port between sealing portions and bypass around 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 .Plugs 193 ..Free falling type (e.g., dropped ball) 194 ...With sleeve valve 195 .Deformable portion engages conduit restriction 196 .Central support has shoulders expanding sealing portion, or telescopes 202 .Cup type 203 .Non-deformable type 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)) 210 ..With friction drag for setting by turning movement also 211 ..With spring 212 .Fluid pressure actuated 213 .Bowed anchor means 214 .Spring set 215 ..Spring moves anchor slip relative to wedge or cam 216 .With wedge or cam and friction drag 217 .Expansible means translated by wedge or cam 222 WHIRLING OR LATERAL DISCHARGE OR PROJECTABLE NOZZLES 223 .Rotary or projectable 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 322 ...Retrievable 323 ...Locked open or closed 324 ...With fluid pressure equalizing means 325 ..One way, e.g., check valve type 326 ...Flexible valve element 327 ...Shoes with check valve 328 ....Loose ball closure 329 ..Loose ball closure with limited reverse flow 330 .Rotated operator 331 ..Lug in branched slot, e.g., "J" slot 332 .Longitudinally movable operator 333 ..Contact with bore bottom 334 ..Vertical movement of conduit 227 SCREENS 228 .Porous material 229 .Inserted screen plug 230 .Woven mesh 231 .Spiral 232 ..With spacing lug for adjacent turns 233 ..With perforated pipe 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 241.3 ..Rotatable or having a rotatable element 241.4 ..Surrounding existing rod 241.5 .For a wireline operation 241.6 .Surrounding existing device or tubing 241.7 ..Removably secured by a fastener (e.g., pin) parallel to tubing 242 CONDUIT WALL OR SHOE STRUCTURE ONLY 243 MISCELLANEOUS (E.G., ANCHOR PIPES) * ****************************** * CROSS-REFERENCE ART COLLECTIONS * ****************************** 901 WELLS IN FROZEN TERRAIN 902 FOR INHIBITING CORROSION OR COATINGG