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363-131 121-55A 14-.5
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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