Class   166	WELLS
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335

SUBMERGED WELL

336

. (1 indent ) Testing

337

.. (2 indent ) For leak

338

. (1 indent ) Connection or disconnection of submerged members remotely controlled

339

.. (2 indent ) With provision for removal or repositioning of member without removal of other well structure

340

.. (2 indent ) Disconnection

341

.. (2 indent ) With orienting or aligning of member for connection

342

... (3 indent ) Including removable, member mounted guide

343

... (3 indent ) Including means to pull member into position

344

.. (2 indent ) Connection to provide fluid flow path

345

... (3 indent ) Connection of riser-and-tubing assembly to other structure

346

... (3 indent ) Yieldable tubing

347

... (3 indent ) Connection of lateral flow line

348

.. (2 indent ) Connection of pipe hanging

349

.. (2 indent ) Connection of guide means

350

. (1 indent ) Submerged, buoyant wellhead or riser

351

. (1 indent ) Means removably connected to permanent well structure

352

.. (2 indent ) Surface vessel

353

... (3 indent ) Having means to move vessel to precise location

354

... (3 indent ) Having means to hold vessel at given location (e.g., anchor, etc.)

355

... (3 indent ) With means to compensate for vessel movement

356

.. (2 indent ) Means to provide protective environment for operative access below surface of water

357

.. (2 indent ) Separator

358

.. (2 indent ) Drilling means

359

.. (2 indent ) Removable riser

360

.. (2 indent ) Well component assembly means

361

.. (2 indent ) Pipe cutting means

363

. (1 indent ) With safety or emergency shutoff

364

. (1 indent ) Including disaster feature

365

. (1 indent ) With provision for disassembly

366

. (1 indent ) Multiple wells

367

. (1 indent ) Riser

368

. (1 indent ) Wellhead

244.1

PROCESSES

245

. (1 indent ) Specific pattern of plural wells

246

. (1 indent ) Using microorganisms

247

. (1 indent ) Nuclear energy or radioactivity for treating

248

. (1 indent ) Electric current or electrical wave energy through earth for treating

249

. (1 indent ) Vibrating the earth or material in or being placed in the earth pores

250.01

. (1 indent ) With indicating, testing, measuring or locating

251.1

.. (2 indent ) Including in situ combustion

252.1

.. (2 indent ) Including production of earth fluid by driving fluid

252.2

... (3 indent ) Residual oil or oil saturation

252.3

... (3 indent ) Salinity or acidity

252.4

... (3 indent ) Flood front

252.5

... (3 indent ) Permeability or viscosity

252.6

... (3 indent ) And tracing material

253.1

.. (2 indent ) Indicating the location, presence, or absence of cement

254.1

.. (2 indent ) Determining position of earth zone or marker

254.2

... (3 indent ) Well logging

255.1

.. (2 indent ) Determining position of object in well

255.2

... (3 indent ) Tool orienting

255.3

.... (4 indent ) Using whipstock

250.02

.. (2 indent ) Permeability determining

250.03

.. (2 indent ) Determining fluid interface or fluid level

250.04

.. (2 indent ) Plug indicating or releasing

250.05

.. (2 indent ) Scale or corrosion determination

250.06

.. (2 indent ) Steam quality

250.07

.. (2 indent ) Bottom hole pressure

250.08

.. (2 indent ) Leak testing or locating

250.09

.. (2 indent ) Impression means

250.1

.. (2 indent ) Fracturing characteristic

250.11

.. (2 indent ) Holder for coupon or sensor

250.12

.. (2 indent ) Tracer

250.13

.. (2 indent ) Determining stuck point

250.14

.. (2 indent ) Of cementing or plugging technique

250.15

.. (2 indent ) Automatic control for production

250.16

.. (2 indent ) Prospecting

250.17

.. (2 indent ) Including testing or treating tool having at least one actuatable packer

256

. (1 indent ) In situ combustion

257

.. (2 indent ) Injecting while producing by in situ combustion from same well

258

.. (2 indent ) Plural distinct superimposed formations

259

.. (2 indent ) Including fracturing or attacking formation

260

.. (2 indent ) Injecting specific fuel or catalyst for burning into formation

261

.. (2 indent ) Injecting specific material other than oxygen into formation

262

.. (2 indent ) Solid fuel or particles in well

264

. (1 indent ) Sampling well fluid

265

. (1 indent ) Separating material entering well

266

.. (2 indent ) Injection and producing wells

267

.. (2 indent ) Separating outside of well

268

. (1 indent ) Distinct, separate injection and producing wells

270

.. (2 indent ) Injecting a composition to adjust the permeability (e.g., selective plugging)

270.1

.. (2 indent ) Injecting a composition including a surfactant or cosurfactant

270.2

... (3 indent ) Nonaqueous type

400

.. (2 indent ) Sequentially injected separate fluids (e.g., slugs)

401

... (3 indent ) Injecting a gas or gas mixture

402

.... (4 indent ) CO2 or carbonated gas

403

....• (5 indent ) In combination with additional organic material (e.g., alkyls, carbon chains)

272.1

.. (2 indent ) Involving the step of heating

272.2

... (3 indent ) In association with fracturing or crevice forming processes

272.3

... (3 indent ) Steam as drive fluid

272.4

.... (4 indent ) In combination with alkyls or carbon chains

272.5

.... (4 indent ) With override zone, diverting, or path blocking operation

272.6

... (3 indent ) Liquid material injected

272.7

... (3 indent ) Horizontal well

271

.. (2 indent ) Including fracturing or attacking formation

269

.. (2 indent ) Fluid injected from longitudinally spaced locations in injection well

275

.. (2 indent ) Injected fluid comprises water and material other than inorganic gas

263

. (1 indent ) Cyclic injection then production of a single well

276

. (1 indent ) Providing porous mass of adhered filter material in well

277

. (1 indent ) Repairing object in well

278

. (1 indent ) Graveling or filter forming

279

. (1 indent ) Material placed in pores of formation to treat resident fluid flowing into well

280.1

. (1 indent ) Specific propping feature (EPO)

280.2

.. (2 indent ) Composition of proppant (EPO)

281

. (1 indent ) Separate steps of (1) cementing, plugging or consolidating and (2) fracturing or attacking formation

282

. (1 indent ) Specific low fluid loss feature for fluid attacking formation

283

. (1 indent ) Specific low fluid loss feature for fracturing fluid or cement causes fracture

284

. (1 indent ) Fluid flow causes pellet to block opening in wall of conduit

285

. (1 indent ) Cementing, plugging or consolidating

286

.. (2 indent ) Tamping, vibrating, exploding or using receptacle

287

.. (2 indent ) Removable molding or forming means

288

.. (2 indent ) Including heating

289

.. (2 indent ) Discharging cement from casing at different levels

290

.. (2 indent ) By tubing which is subsequently lifted

291

.. (2 indent ) With piston separator

292

.. (2 indent ) Using specific materials

293

... (3 indent ) Cement or consolidating material contains inorganic water settable and organic ingredients

294

... (3 indent ) Cement or consolidating material is organic or has organic ingredient

295

.... (4 indent ) Organic material is resin or resinous

296

. (1 indent ) Preventing flow into strainer while lowering by blocking openings

297

. (1 indent ) Perforating, weakening, bending or separating pipe at an unprepared point

298

.. (2 indent ) Perforating, weakening or separating by mechanical means or abrasive fluid

299

. (1 indent ) With explosion or breaking container to implode

300

. (1 indent ) Chemical inter-reaction of two or more introduced materials (e.g., selective plugging or surfactant)

301

. (1 indent ) Freeing stuck object, grappling or fishing in well

302

. (1 indent ) Heating, cooling or insulating

303

.. (2 indent ) Placing preheated fluid into formation

304

. (1 indent ) Dissolving or preventing formation of solid oil deposit

305.1

. (1 indent ) Placing fluid into the formation

306

.. (2 indent ) Fluid enters and leaves well at spaced zones

307

.. (2 indent ) Attacking formation

308.1

.. (2 indent ) Fracturing (EPO)

308.2

... (3 indent ) Using a chemical (EPO)

308.3

.... (4 indent ) Water based composition with inorganic material (EPO)

308.4

.... (4 indent ) Oil based composition (EPO)

308.5

.... (4 indent ) Including cross-linking agent (EPO)

308.6

.... (4 indent ) Foam (EPO)

309

. (1 indent ) Producing foam or gas in well by foaming or gas producing material

310

. (1 indent ) Entraining or incorporating treating material in flowing earth fluid

311

. (1 indent ) Cleaning or unloading well

312

.. (2 indent ) Liquid introduced from well top

313

. (1 indent ) Parallel string or multiple completion well

369

. (1 indent ) Producing the well

370

.. (2 indent ) Including varying downhole pressure

371

.. (2 indent ) Including non-expulsive material placed in well

372

.. (2 indent ) By fluid lift

373

. (1 indent ) Operating valve, closure, or changeable restrictor in a well

374

.. (2 indent ) Operated by fluid pressure controlled above ground

375

... (3 indent ) By auxilliary fluid control line

376

. (1 indent ) Destroying or dissolving well part

377

. (1 indent ) Disassembling well part

378

. (1 indent ) Assembling well part

379

.. (2 indent ) Above ground parts

380

.. (2 indent ) Conduit

381

. (1 indent ) Placing or shifting well part

382

.. (2 indent ) Providing support for well part (e.g., hanger or anchor)

383

.. (2 indent ) By fluid driven piston

384

.. (2 indent ) With bending of tubing

385

.. (2 indent ) Flexible cable or wire

386

.. (2 indent ) Fluid flow control member (e.g., plug or valve)

387

.. (2 indent ) 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

. (1 indent ) 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

. (1 indent ) 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

. (1 indent ) With disparate below ground feature

55.2

. (1 indent ) Perforating or splitting cutter

55.3

.. (2 indent ) Wedge or cam actuated

55.6

. (1 indent ) Cutter rotates circumferentially of pipe

55.7

.. (2 indent ) Internal

55.8

... (3 indent ) Tool moved radially by fluid pressure

56

SCREEN AND OUTSIDE CLEANING PIPE

57

WITH HEATING, REFRIGERATING OR HEAT INSULATING MEANS

58

. (1 indent ) Fuel supply or hot billet in well

59

. (1 indent ) Burner in well

60

. (1 indent ) Electrical heater in well

61

. (1 indent ) Heater surrounding production tube

62

. (1 indent ) 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

66

. (1 indent ) Indicating

66.4

. (1 indent ) Electrical motor (e.g., solenoid actuator)

66.5

. (1 indent ) Magnetic

66.6

. (1 indent ) Valve

66.7

.. (2 indent ) Longitudinally movable operator

67

WITH BELOW AND ABOVE GROUND MODIFICATION

68

. (1 indent ) Eduction pump or plunger in well

68.5

.. (2 indent ) With above ground (1) motor carried by casing or casing support or (2) well fluid pump

69

. (1 indent ) With receptacle for insertion into well

70

. (1 indent ) Head for tool, piston or cleaner (e.g., cement head)

71

. (1 indent ) With above ground casing sinking means

72

. (1 indent ) Above ground actuating means for below ground device

73

.. (2 indent ) Tubing or casing actuated

74

. (1 indent ) With below ground screen

75.11

ABOVE GROUND APPARATUS

76.1

. (1 indent ) Having structure for converting from one mode of operation to another; e.g., valve to packer

77.1

. (1 indent ) Moving tubing or cable into an existing well

77.2

.. (2 indent ) Coiled tubing

77.3

... (3 indent ) Chain injector

77.4

.. (2 indent ) Piston and cylinder

77.51

. (1 indent ) With means facilitating connecting or disconnecting supported tubing or rod sections

77.52

.. (2 indent ) With elevator detail

77.53

.. (2 indent ) Upper and lower slips

85.1

. (1 indent ) With assembly or disassembly means (e.g., handling, guiding, or tool feature)

85.2

.. (2 indent ) Pitless well adapters

85.3

.. (2 indent ) Seal or bushing insertion or removal

85.4

.. (2 indent ) With blowout preventer

85.5

.. (2 indent ) Guiding or aligning feature

86.1

. (1 indent ) Inner member anchor or seal with valve

86.2

.. (2 indent ) Annular sealing type valve

86.3

.. (2 indent ) Gate type (perpendicular to pipe) valve

87.1

.. (2 indent ) Axially movable type valve

88.1

. (1 indent ) Inner member anchor or seal with lateral port

89.1

.. (2 indent ) Plural inner pipes

89.2

... (3 indent ) Parallel pipes (as opposed to concentric)

89.3

... (3 indent ) Having slip type hanger

88.2

.. (2 indent ) Slip type well anchor

88.3

... (3 indent ) Seal actuated with anchor

88.4

.. (2 indent ) With hydraulic conduit or line extending through outer member

78.1

. (1 indent ) With tube rotating means (rotary tables)

79.1

. (1 indent ) Cap having transporting means or ground support

80.1

. (1 indent ) Having retractable pipe section to allow closing of gate type valve or flapper valve for rod or pipe

81.1

. (1 indent ) Fluid catcher around pipe coupling

82.1

. (1 indent ) Releasable seal or cleaner disengaged by projection on inner member

83.1

.. (2 indent ) Latches releasable radially inward

84.1

. (1 indent ) With seal for reciprocating member

84.2

.. (2 indent ) Cooling fluid or grease supplied to seals

84.3

.. (2 indent ) Rotary blowout preventer type

84.4

.. (2 indent ) Fluid pressure actuated seals

84.5

.. (2 indent ) Seal fixedly mounted to rod

90.1

. (1 indent ) With means for inserting fluid into well

75.15

. (1 indent ) With means for injecting solid or particulate material into the well

91.1

. (1 indent ) With flow restrictions (e.g., chokes or beans)

92.1

. (1 indent ) Cap or head pivotably attached to tube or casing

93.1

. (1 indent ) Split cap or head

94.1

. (1 indent ) Laterally adjustable cap or head

95.1

. (1 indent ) Central valve or closure and lateral port

96.1

. (1 indent ) External anchoring or bracing means

97.1

. (1 indent ) With valve on cap or head

75.13

. (1 indent ) Well caps or casing heads

75.14

. (1 indent ) Suspension means

75.12

. (1 indent ) Treatment of produced fluids

97.5

. (1 indent ) 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

. (1 indent ) Having sediment trap or deflector

105.2

.. (2 indent ) Carried by reciprocating plunger or plunger rod

105.3

.. (2 indent ) Sediment trap formed in pumping chamber

105.4

.. (2 indent ) In pump discharge flow path

105.5

. (1 indent ) Having liquid-gas separator

105.6

.. (2 indent ) Gas fed to entrainment type pump

106

. (1 indent ) With packer or plug

107

. (1 indent ) Receptacles

108

.. (2 indent ) Piston actuates foot valve

109

.. (2 indent ) Telescoping

110

.. (2 indent ) Lateral port always below piston and used in well

111

.. (2 indent ) Bail engaging piston rod

112

. (1 indent ) 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

. (1 indent ) 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

. (1 indent ) 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

179

PACKERS OR PLUGS

118

. (1 indent ) With expanding anchor

119

.. (2 indent ) Relatively movable packers or plugs

120

.. (2 indent ) Anchor actuated by fluid pressure

121

... (3 indent ) Pressure transmitted by cup type packer or plug seal

122

... (3 indent ) Pressure transmitted by packer or plug expanded by confined fluid from central chamber, pump, or plunger

123

.. (2 indent ) With detachable setting means

124

... (3 indent ) Screw threaded

125

... (3 indent ) Radially movable latch

126

.. (2 indent ) With controllable passage between central chamber and space below packer

127

... (3 indent ) Spaced packer or plug seals

128

... (3 indent ) Passage controllable by movement of central chamber

129

.. (2 indent ) With controllable bypass outside central conduit

130

... (3 indent ) Packer expanded by upper valve

131

.. (2 indent ) With controllable passage between central conduit and space above packer or plug

132

.. (2 indent ) Portion extends beyond end of surrounding conduit

133

.. (2 indent ) With controllable passage through packer

134

.. (2 indent ) Support and holddown expanding anchors

135

.. (2 indent ) Flow stopping type, e.g., plug

136

.. (2 indent ) Spring set anchor

137

... (3 indent ) Spring moves anchor slip relative to wedge or cam

138

.. (2 indent ) Wedge or cam and friction drag

139

... (3 indent ) Threaded element rotated

140

... (3 indent ) Anchor above packer or plug seal

141

. (1 indent ) Sealing portion closes port between central pipe and outside space when unexpanded

142

. (1 indent ) With controllable passage between central chamber and space below packer

143

.. (2 indent ) Central conduit detachable

144

... (3 indent ) Bottom supported casing or screen section

145

.. (2 indent ) Bypass closing and passage opening to upward flow constrained to occur simultaneously

146

.. (2 indent ) Passage connects with space below packers and continuously open passageway connects with space between packers

147

.. (2 indent ) Passage connects with space between packer or plug seals

148

.. (2 indent ) Upwardly biased check valve and means for opening or bypassing it

149

.. (2 indent ) With passageway between central chamber and space above packer

150

... (3 indent ) Passageway controllable by movement of central chamber

151

... (3 indent ) Passageway valve directly responsive to fluid pressure

152

.. (2 indent ) Passage controllable by movement of central chamber

180

. (1 indent ) Adjustable over pipe or set over prepositioned pipe

181

. (1 indent ) With detachable setting means

182

.. (2 indent ) Packer or plug locked expanded

183

. (1 indent ) With controllable bypass outside central conduit

184

. (1 indent ) With controllable passage between central conduit and space above packer or plug

185

. (1 indent ) With central conduit and fluid port to space outside

186

.. (2 indent ) Port between sealing portions and bypass around

187

. (1 indent ) Expanded by confined fluid from central chamber, pump or plunger

188

. (1 indent ) Controllable passage through packer

189

. (1 indent ) For non-concentric members

191

. (1 indent ) Spaced sealing portions

192

. (1 indent ) Flow stopping type; e.g., plug

193

.. (2 indent ) Free falling type (e.g., dropped ball)

194

... (3 indent ) With sleeve valve

195

. (1 indent ) Deformable portion engages conduit restriction

196

. (1 indent ) Central support has shoulders expanding sealing portion, or telescopes

202

. (1 indent ) Cup type

203

. (1 indent ) Non-deformable type

153

PISTONS, FLUID DRIVEN INTO WELL (E.G., CEMENTING PLUGS)

154

. (1 indent ) Surrounding conduit valve or closure opened by piston

155

. (1 indent ) With downflow past piston

156

. (1 indent ) With stop

157

SCREEN WITH WASHING POINT OR SHOE

158

. (1 indent ) Detachable wash pipe

162

RECEPTACLES

163

. (1 indent ) With separate air chamber having openable passage

164

. (1 indent ) With destroyable closure and valve

165

. (1 indent ) With valved or closed top

166

. (1 indent ) Valve control means contacting well conduit wall

167

. (1 indent ) Bottom receiving and side discharge valves

168

. (1 indent ) Readily releasable bottom valve

169

. (1 indent ) Lateral ports used in well

170

BRUSHING, SCRAPING, CUTTING OR PUNCHING-TYPE CLEANERS

171

. (1 indent ) Perforation cleaners

172

. (1 indent ) Bow spring type

173

. (1 indent ) On tubing or casing

174

. (1 indent ) Retractable on support while lowering

175

. (1 indent ) Reciprocable relative to central member extending from well top

176

. (1 indent ) On sucker rod

177.1

SONIC DEVICE

177.2

. (1 indent ) With specific downhole feature

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

. (1 indent ) Expansible casing

208

. (1 indent ) Liner hanger

209

. (1 indent ) Set by wedge or cam at any point by drop only (e.g., tubing catcher)

210

.. (2 indent ) With friction drag for setting by turning movement also

211

.. (2 indent ) With spring

212

. (1 indent ) Fluid pressure actuated

213

. (1 indent ) Bowed anchor means

214

. (1 indent ) Spring set

215

.. (2 indent ) Spring moves anchor slip relative to wedge or cam

216

. (1 indent ) With wedge or cam and friction drag

217

. (1 indent ) Expansible means translated by wedge or cam

222

WHIRLING OR LATERAL DISCHARGE OR PROJECTABLE NOZZLES

223

. (1 indent ) Rotary or projectable

316

VALVES, CLOSURES OR CHANGEABLE RESTRICTORS

317

. (1 indent ) Destructible element

318

. (1 indent ) Operated by dropped element

319

. (1 indent ) Fluid operated

320

.. (2 indent ) Variably opened

321

.. (2 indent ) Fluid pressure biased to open position position

322

... (3 indent ) Retrievable

323

... (3 indent ) Locked open or closed

324

... (3 indent ) With fluid pressure equalizing means

325

.. (2 indent ) One way, e.g., check valve type

326

... (3 indent ) Flexible valve element

327

... (3 indent ) Shoes with check valve

328

.... (4 indent ) Loose ball closure

329

.. (2 indent ) Loose ball closure with limited reverse flow

330

. (1 indent ) Rotated operator

331

.. (2 indent ) Lug in branched slot, e.g., "J" slot

332.1

. (1 indent ) Longitudinally movable operator

332.2

.. (2 indent ) Having rotational movement

332.3

... (3 indent ) Ball valve type

332.4

.. (2 indent ) Operated by means inserted from the surface

332.5

.. (2 indent ) Valving means inserted or retrieved to operate

332.6

.. (2 indent ) Having a dump or discharge type means

332.7

.. (2 indent ) Having equalizing valve

332.8

.. (2 indent ) Flapper type

333.1

.. (2 indent ) Contact with bore bottom

334.1

.. (2 indent ) Vertical movement of conduit

334.2

... (3 indent ) And rotational movement; e.g., ball valve-type

334.3

... (3 indent ) Drain-type

334.4

... (3 indent ) Fluid flow through lateral port to exterior

227

SCREENS

228

. (1 indent ) Porous material

229

. (1 indent ) Inserted screen plug

230

. (1 indent ) Woven mesh

231

. (1 indent ) Spiral

232

.. (2 indent ) With spacing lug for adjacent turns

233

.. (2 indent ) With perforated pipe

234

. (1 indent ) Strip or rod

235

. (1 indent ) Stacked annular sections

236

. (1 indent ) Concentric pipes

237

DETENTS OR CLUTCHES

238

. (1 indent ) Flow permitting means bridging fluid conduit

239

. (1 indent ) Operated by dropped weight

240

. (1 indent ) Lug in closed branched slot

241.1

GUIDE FOR DEVICE OR CONDUIT

241.2

. (1 indent ) On sucker or pump rod

241.3

.. (2 indent ) Rotatable or having a rotatable element

241.4

.. (2 indent ) Surrounding existing rod

241.5

. (1 indent ) For a wireline operation

241.6

. (1 indent ) Surrounding existing device or tubing

241.7

.. (2 indent ) Removably secured by a fastener (e.g., pin) parallel to tubing

242.1

CONDUIT WALL OR SPECIFIC CONDUIT END STRUCTURE

242.2

. (1 indent ) Flexible tube or cable

242.3

. (1 indent ) Plural, parallel, nonconcentric conduits

242.4

. (1 indent ) Corrosion prevention or deterring

242.5

. (1 indent ) Side entry

242.6

. (1 indent ) Downhole coupling or connector

242.7

.. (2 indent ) Telescopic

242.8

. (1 indent ) Shoe detail

242.9

. (1 indent ) 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)

FOR100

. (1 indent ) Specific propping feature for a fracture (166/280)

FOR101

.. (2 indent ) Fracturing (166/308)

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