| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 161 | Sucker rod wiper | US813440 | 1991-12-26 | US5217069A | 1993-06-08 | Bobby Badon |
| A wiper device for oil well sucker rods is provided as an integral resilient body fabricated of an oil-resistant elastomeric composition. The resilient body is bounded in part by upper, lower and sidewall surfaces. A flat annular base portion extends inwardly from the sidewall surface. An interior portion of frustro-conical shape extends upwardly from the base portion and terminates in an orifice adapted to embrace the sucker rod. A reinforcing band is embedded within the base portion to provide structural stability. | ||||||
| 162 | Pipe wiper assembly for a well drilling unit | US699760 | 1991-05-14 | US5170853A | 1992-12-15 | Ronald J. Mason; Steven B. Mason |
| A pipe wiper assembly is provided which comprises a first housing for supportingly receiving at least one resilient wiper member, and a second housing supported above the well bore for connecting the first housing to the stack assembly of the drilling unit. The first and second housings are interconnected such that the first housing is selectively movable in response to vertical deviations of the drill pipe as the drill pipe is withdrawn from the vertically extending well bore. | ||||||
| 163 | Oil well spill trough | US698951 | 1991-05-13 | US5121796A | 1992-06-16 | James R. Wigington, Sr. |
| Spills from an oil well are caught in a basin surrounding the oil well casing. The basin is drained from the bottom through a conduit connected to a tank. A vacuum is applied to the tank by a suction pump. The control for starting and stopping the suction pump is by a control which is located above the basin. The control is manually operated by a man who works on a grating above the basin and may see into the basin. | ||||||
| 164 | Rubber and fluorocarbon micropowder composition | US262251 | 1988-10-20 | US5100950A | 1992-03-31 | Douglas W. Carlson; William D. Breach |
| A rubber composition with small fluorocarbon micro-powder particles incorporated into the composition which reduces the coefficient of friction. The rubber with a lowered coefficient of friction allows for ease of movement of the rubber part against metal surfaces thereby reducing the wear of the rubber part. | ||||||
| 165 | Membrane liner for casinghead of oil well of the like | US600622 | 1990-10-22 | US5098220A | 1992-03-24 | Carol A. Norman |
| A covering or liner, capable of surrounding the base of a casinghead of an oil well, which is capable of catching and retaining any fluid that may escape from the casinghead. This covering or liner is a flexible, inextensible, fluid impervious material that is capable of bordering an earthen cavity and surrounding the casinghead of an oil well. This covering or liner has a leak-proof seam to facilitate its installation around the casinghead and a collar to prevent seepage down the casinghead shaft. This invention further contemplates the method for using the same. | ||||||
| 166 | Stripper rubbers for drilling heads | US560526 | 1990-07-31 | US5062479A | 1991-11-05 | Thomas F. Bailey; Larry F. Moeller |
| A stripper rubber for use in a drilling head to seal against a work string deployable through the drilling head. The stripper rubber is longitudinally restrained to prevent extrusion of the stripper under pressure and to reduce the tensile and compressive stresses on the stripper rubber. One embodiment of the stripper rubber incorporates upper and lower metal rings which are maintained in spaced apart relation by vertical rods thereby allowing radial expansion as tool joints pass through the rubber but prevents inversion of the stripper rubber under pressure. Reinforcing cords added to the stripper rubber increase the longitudinal strength. A second embodiment bonds a stripper rubber into a cylinder which restrains the rubber in the vertical direction. Radial deflection is accomodated by allowing the rubber to flow vertically as a tool joint passes therethrough. Each of the stripper rubbers incorporates an integrally formed drive bushing which facilitates mounting within the drilling head. | ||||||
| 167 | Flow diverter | US303905 | 1989-01-30 | US4971148A | 1990-11-20 | Joseph R. Roche; Hugh L. Elkins |
| There are disclosed several embodiments of a flow diverter each of which includes a housing installed beneath the floor of a drilling rig on the upper end of a conductor pipe through which a well is to be drilled, a thrust plate sealably supported within a bore through the housing above a side outlet in the housing through which well fluid may be diverted, and a sealing element carried within the bore of the thrust plate for sealably engaging about a pipe string extending into the conductor pipe. | ||||||
| 168 | Electrical conductor arrangements for pipe system | US210784 | 1988-06-24 | US4953636A | 1990-09-04 | Frank Mohn |
| A pipe assembly for use in production or drilling systems comprises a plurality of pipe members connected together in end-to-end relationship and a plurality of tubular conductor members electrically connected together in end-to-end relationship. The members have co-operating tapered or stepped portions, and/or screw-threaded portions whereby the pipe members support the conductor members in internal or external coaxial relationship. A logging unit can be moved along the assembly unit under fluid pressure to engage stop means for connecting the unit with the conductor members, or a logging unit can be incorporated in a pipe member wall. An outer pipe can surround the pipe assembly to provide with the pipe assembly interior two passages for the reception, flow or circulation of fluids, for example extracted oil and/or gas and barrier fluid. | ||||||
| 169 | Wellhead with safety valve for pumping well | US375249 | 1989-07-03 | US4907650A | 1990-03-13 | Robert L. Heinonen |
| A wellhead for a polished rod pumping unit to provide emergency closure of the bore through the wellhead in the event of breakage of the polished rod. The valve assembly includes a flapper valve mounted on a swivel pin for movement between a vertical open position and a horizontal closed position across the wellhead bore. The flapper valve is spring biased toward the open position. A well pressure responsive cylinder and piston assembly is mounted on the side of the wellhead with an operating rod into the wellhead against the flapper valve to move the valve from the open position to a horizontal closed position. The piston is exposed to well pressure on the one side urging the piston outwardly to the valve open position and a spring engages the piston on the opposite side biasing the piston inwardly toward the valve closed position when well pressure is not sufficient to keep the spring compressed. One form of the wellhead includes a packing assembly for sealing around the polished rod. A second embodiment includes only the valve assembly which is used with a standard packing assembly. A third embodiment of the wellhead includes a swivel mounted packing assembly to permit the polished rod to deviate from the vertical. The swivel mounted packing assembly may include a ball swivel member and ball swivel guide for holding said ball swivel against rotation while permitting the ball swivel to tilt. | ||||||
| 170 | Apparatus for guiding wireline | US301142 | 1989-01-24 | US4899816A | 1990-02-13 | Paul Mine |
| An assembly for feeding wireline down the drill pipe, the assembly including a sub body portion having a lower pin portion mounted onto the upper threaded box portion of the upper end of the drill string. The pin portion further includes a member fixed within the bore of the sub, the member including a lower most threaded portion for accommodating the male end of an overshot tool. The member further includes a bore therethrough, which would be coaxially aligned with the bore in the overshot for accommodating the wireline therethrough. On the upper body portion of the sub, there is further provided a pack off means. The wireline assembly further includes a first principle arm member, the lower end of which is secured to the outer wall of the body portion of the assembly, and extending at substantially a 45.degree. angle therefrom. At the second upper end of the principle arm member, there is included a first pulley wheel rotatable secured thereto. There is further included a secondary arm connected to and extending from the principle arm member in a perpendicular fashion, the second arm member likewise including a second pulley wheel at the furthest end therefrom, the second arm member positioned at a point on the principal arm member, so that the pulley wheel at the distal end thereof allows the wireline to be fed around the wheel and dropped vertically directly in alignment with the bore in the body assembly of the wireline retrieval tool. | ||||||
| 171 | Anti-corrosive stuffing box assembly | US261748 | 1988-10-24 | US4896367A | 1990-01-23 | Hille Newton; Ron Belanger |
| In a well pumping unit of the type employing a polished rod, a stuffing box is disposed at the upper end of the wellhead which has axially spaced bearing assemblies, and packing coils positioned between a bearing section at either end of each assembly to guide the polished rod for reciprocal movement along a vertical path through the wellhead, each bearing section having annular portions connected together in end-to-end relation with one portion composed of brass and another portion composed of zinc which is capable of undergoing a reduction reaction with the oxygen present in the liquids and gases to effectively reduce corrosion of the polished rod. | ||||||
| 172 | Pipe washer and chemical applicator system | US110371 | 1987-10-19 | US4895205A | 1990-01-23 | J. P. Thompson; Henry Guillory; Alfred J. Thomas, II |
| A system for washing, cleaning, and chemically treating sections of drill pipe being tripped out of the hole, which includes an elongated cylindrical housing having a central opening therethrough, the housing comprised of a first and second semi-circular sections, the sections movable between open and closed positions by a hinged joint along one edge, and in the closed position maintained closed via a locking member along the second edge. Within the housing there is further included upper and lower wipers, which comprise circular rubberized material having bores along their central axes, the bores being substantially the width of a section of drill pipe to clean the wall of the pipe. Each wiper would be spaced apart from one another and housed within an annular channel along the inner surface of the housing so that the wipers would be stationary within the housing as the housing is placed in the closed position. There is provided spray nozzles for providing pressurized spray of water and anti-corrosive compound for coating the pipe wall. | ||||||
| 173 | Apparatus for sealing a tubing string in a high pressure wellbore | US149389 | 1988-01-28 | US4860826A | 1989-08-29 | John L. Land |
| Method and apparatus for hanging and sealing a tubing string in a high pressure wellbore. The invention discloses apparatus which enables the pulling of a tubing string on an injection well to be achieved without having to kill or bleed down the formation pressure. A support and flow control apparatus is provided for supporting the upper end of a tubing string that extends downhole in a cased borehole, while packing off the annulus between the tubing and the casing. The apparatus includes a tubing hanger which is connected to the upper end of the wellbore for supporting the upper end of the tubing string therefrom so that the string is in tension. The tubing hanger includes a hollow member having a boss formed thereon by which the hollow member is received in seated relationship within the support and flow control apparatus, and further includes a main body having a vertical passageway and a horizontal passageway formed therethrough in intersecting relationship respective to one another so that the two passageways are disposed perpendicularly respective to one another. | ||||||
| 174 | Self-aligning lubricating stuffing box | US661666 | 1984-10-17 | US4613140A | 1986-09-23 | Gary W. Knox |
| A self-aligning and self-lubricating stuffing box for oil well polish rods, pump rods and the like, and comprising a housing disposed around the outer periphery of the rod and having an internal cooling chamber surrounding the outer periphery of the rod for retaining a fluid reservoir in engagement with the rod for an efficient lubrication thereof, at least one valved internal passageway provided in the housing for automatically directing the fluid to and/or from the cooling chamber as required during the operation of the polish rod during a well fluid production process, at least two longitudinally spaced bushing members disposed in the housing and in engagement with the outer periphery of the rod for assuring an efficient axial alignment between the housing and the rod during the reciprocation of the rod, and a swivel connection for overcoming any misalignment between the pump jack and the pumping "T" during the well production operation. | ||||||
| 175 | Packless stuffing box for polish rods | US661911 | 1984-10-17 | US4579350A | 1986-04-01 | Gary W. Knox |
| A stuffing box for the reciprocal polish rod of a producing oil and/or gas well bore, the rotatable rod of a pump, or the like and comprising a housing disposed around the outer periphery of the rod and concentrically arranged with respect thereto to provide a cooling chamber around the outer periphery of the rod, upper and lower bushing members disposed in the housing and around the outer periphery of the rod for assuring an efficient axial alignment between the rod and the housing during reciprocation of the rod, annular sealing members interposed between the bushings and the rod for precluding leakage of fluid therebetween with the use of the usual packing assemblies, a charging seal provided at the lowermost bushing and responsive to pressure differentials acting thereacross for admitting fluid into the cooling chamber while precluding movement of fluid from the cooling chamber around the charging seal, a valved internal passageway provided in the stuffing box providing communication between the cooling chamber and a fluid reservoir for automatically controlling circulation of the fluid to and from the cooling chamber as required during operation of the stuffing box and rod, and one embodiment of the stuffing box including a fluid seal for isolating the cooling chamber from any fluid which may be present in the fluid reservoir. | ||||||
| 176 | Crossover seal assembly | US637994 | 1984-08-06 | US4556224A | 1985-12-03 | Tri C. Le |
| A crossover seal assembly (44) for sealing the annulus between a well casing (16) and tubing head (22). The assembly includes spaced pairs of upper and lower metal seal rings (60 and 72, 108 and 120) having matching frusto-conical wedging surfaces (70 and 74, 118 and 122) which interact when an axial compressive force is applied to thereby effect a controlled radial expansion of the seal rings to sealingly engage the inner and outer cylindrical surfaces (48, 47) of the tubing head (22) and well casing (16). The axial compressive force is mechanically applied by a plurality of holddown lock screws (90) which interact through tapered conical tips (94) to energize the crossover seal assembly (44). | ||||||
| 177 | Polymeric annular snubbing apparatus | US541169 | 1983-10-12 | US4480843A | 1984-11-06 | Virgil E. Springer; John J. Garner, Jr. |
| For use in hydraulic workover operations for oil and gas wells, a snubbing element is provided that is made entirely of polymeric material such as polyurethane. According to a preferred embodiment of the invention, the strength and rigidity supplied to the snubbing element in the prior art metallic support ring is now provided by molding that portion of the polymeric annular snubbing element from a polymeric material having a higher density and hardness than that of the polymeric sealing member. The polymeric annular snubbing element thus comprises a high density polymeric support member and a relatively lower density polymeric sealing member. | ||||||
| 178 | Downhole seal for low profile oil well pumping installations | US207946 | 1980-11-18 | US4431052A | 1984-02-14 | Robert G. James |
| Set out herein is a seal arrangement for sealing an oil well rod string below ground surface. More specifically a polished cylinder is inserted into the casing of an oil well and is supported at the well head by a flange radially extending from the upper end thereof. Received in the cylinder is a piston assembly connected at the upper surface to a flexible string or chain articulated by a pump and supporting at the lower surface a polished rod sealably extending through a lower seal fitting received in the bottom end of the polished cylinder. The cavity formed between the piston and the polished cylinder is aspirated into the well casing through a one-way check valve on the upward stroke of the piston and any oil residue that may pass through the lower sealing assembly is forced back into the well casing by another check valve opened during the downward piston stroke. Both the piston and the seal assembly may include sealing rings to improve edge contact which thus render the downhole seal less vulnerable to hot gases and abrasive impurities commonly found in the course of secondary recovery. | ||||||
| 179 | Wellhead flow control devices | US111604 | 1980-01-14 | US4289294A | 1981-09-15 | Douglas K. McLean |
| The device includes a main flow control valve and associated packings designed for effective operation under extreme conditions associated with the pumping of high viscosity asphaltic crude wherein the formation includes toxic gases, and where the formation is produced using steam flooding techniques. The main valve seat and the associated valve closure, consisting of a reciprocating ram and packing plug, are coaxial with the pump polished rod. The valve seat includes tapered walls defining a shoulder which partially confronts the ram plug; and the ram plug is formed of a compressible material formed to the shape of the valve seat. The packing plug is retained on the end of the ram by axial tie rods and a retaining ring, which ring may engage the valve seat shoulder to effect axial compression of the packing plug between the retaining ring and ram face, and consequent radial expansion into sealing engagement. The ram is reciprocated axially, either manually or hydraulically relative to the ram body; and a packing gland, suitable to seal against toxic gases, is provided between the ram and valve body. A rod packing, at the upper end of the ram, includes a primary adjustable packing gland for effective sealing between the ram and the reciprocating polished rod; and may also include a positive shutdown gland for positive sealing at the polished rod in the event of the failure of the primary gland. The positive shutdown is designed for hydraulic operation, to enable automatic operation in response to detection of a gas leak at the primary gland. | ||||||
| 180 | Rod packing | US751390 | 1976-12-17 | US4060249A | 1977-11-29 | Milton G. Stowe; Barry J. Brooks |
| A rod packing for stripping oil from a string of sucker rods as they are removed from the oil well, and including a pair of interfitting semicylindrical packing halves joinable to each other at a diametrical plane by pairs of mating protuberances and sockets. An axial bore is formed by mating semicylindrical grooves in the packing halves which are in registry when the packing halves are joined. Opposite ends of the axial bore communicate with frusto-conical recesses centered in the opposed planar ends of the joined semicylindrical packing halves, and each of the packing halves includes a pair of spaced, substantially parallel, chordally extending grooves in one of the planar ends thereof positioned to intersect the respective frusto-conical recess in that planar end, and to receive accumulated liquid therefrom. | ||||||
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