Matches 1 - 50 out of 64 1 2 >
Match Document Document Title
7562702 Drain cap stuffing box  
As may be used in a positive displacement pump system, a capped stuffing box assembly includes a stuffing box mountable to a discharge tee to prevent pumped fluid from escaping collection via the...
7401645 Downhole fluid disposal apparatus and methods  
A seal cartridge and barrel manifold seal are provided for use in a subterranean well and in a method to inject fluid, that is initially produced into the well from a subterranean formation or...
6739390 Articulated seal  
An articulated seal for use with polished rod and rotary drive head assemblies is described. In particular, an articulated seal assembly or system 10 is described which seals a rotating drive...
6705615 Sealing system and method  
A sealing system for sealing with a generally cylindrical surface 52 of a tubular or another tool 50 includes an annular packer element 10, a wedge ring 60 having a substantially conical...
6502827 Sealing device and a method of repairing/replacing sealing devices  
A sealing device (20, 80, 90), optionally in the form of a kit is provided for sealing about a rotatable member such as a shaft (22). The sealing device or the kit includes a follower housing (32)...
6478303 Sealing ring packing  
A sealing ring packing ( 1 ) includes a cooled packing casing ( 4 ) that can be placed inside a stuffing box borehole ( 3 ), and holds at least one essentially annular slide ring ( 5 ) pressed...
6439302 Stripper packer  
A stripper packer includes a main body having a first end and a second end. A passage extends through the main body from the first end to the second end, thereby facilitating the passage of coiled...
6412783 Self aligning stuffing box for pumpjacks  
A self aligning stuffing box for pump jacks includes a first tubular body having an interior bore with internal stops. A second tubular body has a first end with a concave contact surface. The...
6394461 Pressure compensated stuffing box for reciprocating pumping units  
A packing arrangement for a reciprocating pumps, particularly oil well pumps, in which a stuffing box housing contains a pressure chamber, packing seals mounted within the pressure chamber, a pump...
6371487 Gimbal and seal for the drivehead of a downhole rotary pump  
The invention relates to downhole rotary pumping arrangements and more particularly to drivehead gimbals and seals used in the driveheads of downhole rotary pumps. The gimbal and seal system...
6167959 Adjustable stuffing boxes for pump rods  
Stuffing boxes for use with reciprocating or rotating pump rods for downhole pumps include a lower housing adapted to be mounted on a wellhead and provided with internal bores for receiving the...
5791411 Wellhead stuffing box for rotating rod string  
A tubular mandrel is provided as a sleeve around the portion of the rod string polish rod extending through the stuffing box housing. The mandrel is coupled to the polish rod so that they rotate...
5755372 Self monitoring oil pump seal  
A seal system for an oil well head, wherein the shaft rotates about its axis to drive a progressive cavity type pump. Primary and secondary polytetrafluoroethylene seals surround a sleeve that...
5711533 Oilfield stuffing box with polished rod alignment  
An oilfield stuffing box 10 employs mating flange plates 15, 16 with bolt holes appreciably larger in diameter than the bolts employed to hold the flange plates together, thereby permitting lateral...
5636688 Self aligning stuffing box for pumpjack units  
A self aligning stuffing box for a pumpjack unit of the type having a polished rod reciprocatingly extending therethrough and downhole to a pump located at the lower end of a borehole. The stuffing...
5577737 Method and apparatus for establishing and maintaining a fluid seal around a polishing rod  
The invention is a sealing apparatus and method of providing a seal for polished rods in oil and gas well applications. The sealing apparatus has a fluid responsive gland which forms a seal between...
5342066 Non-extrusion device for split annular casing/tubing hanger compression seals  
A non-extrusion device for split annular well casing and tubing hanger compression seals has a flat annular body having truncated, radially-split cone portions forming through holes for receiving...
5257812 Polished rod protection and sealing device  
A reciprocable polished rod projects through a housing and a stuffing box downstream of the housing. A plurality of packings are provided in the upper portion of the housing and contacting the rod...
5245860 Sensor for detection of oil leaks and oil quality in stuffing box of walking beam pump system  
A method and apparatus for sensing unacceptable oil leaks from a stuffing box in a walking beam pumping system includes a container for receiving leakage from the stuffing box which is divided by a...
5217068 Stuffing box  
An improvement in a stuffing box for a rotary polished rod having a tubular housing with first and second rod guides disposed at each end and packing elements therebetween. The lower rod guide is...
5148699 Stuffing box leak detector  
The invention is a wellhead stuffing box leak detector including a split-ring adapter which is installed between the stuffing box and the stuffing box cover. The leak detector functions to contain...
5103915 Wellhead housing seal assembly for damaged sealing surfaces  
A seal assembly for a wellhead housing and wellhead connector will seal even if the primary sealing surface becomes damaged. The wellhead connector and the wellhead housing each have primary...
5058668 Rod guide bearing assembly for oil well pumping apparatus  
In well pumping apparatus in which a polished rod is arranged for extension through a stuffing box at the upper end of a wellhead, the stuffing box assembly having a pair of axially spaced bearing...
5044672 Metal-to-metal sealing pipe swivel joint  
A metal-to-metal sealing pipe swivel joint especially useful with a subsea well completion system to pivotally interconnect the subsea wellhead to a lay-away flowline, the swivel joint having an...
4981174 Leakproof stuffing box with external lubrication for polish rod  
A stuffing box for an oil well pump which utilizes a separate lubricating fluid chamber for the polish rod rather than using the crude oil that is being pumped as the lubricating fluid.
4917190 Oil well blowout containment system  
An oil well blowout containment system which surrounds the polished rod is provided that will capture the oil leaking and blowing past the stuffing box packing gland. In addition, a vessel which is...
4913464 Tubular joint with seal  
An improved tubular joint between two tubular members having their mating ends with inner sealing surfaces tapering outward in the direction toward the other tubular member and with a sealing ring...
4781387 Metal to metal subsea casing hanger seal  
A seal assembly for providing reliable sealing between a subsea wellhead and a casing hanger suspended within the wellhead which provides a metal band between the top and the bottom of the seal...
4655284 Well head shut-off device  
Well head shut-off device having a housing with a bore for connection to the upper end of production tubing, upper and lower shoulders in the bore and an annular pack-off element with an internal...
4647050 Stuffing box for a sucker rod pump assembly  
A stuffing box for a sucker rod pump assembly is disclosed that utilizes natural convection currents generated in a lubricating fluid reservoir mounted on the housing of the stuffing box and in...
4613140 Self-aligning lubricating stuffing box  
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...
4522368 Closure device  
A closure device connectible to a well head through which the polished rod of a rod string extends into a well tubing for operating pump means for moving well fluids to a surface flow conductor,...
4480842 Self-aligning stuffing box  
A self-aligning stuffing box for use with a drilling device having a rotatable drill shaft includes a packing gland having an opening therethrough sized for passage of the rotatable drill shaft and...
4384726 Expandable lubricating packing assembly for wellheads  
A packing assembly (10) for sealing the annulus between concentric tubular members (12, 14). The assembly (10) includes upper and lower sealing ring assemblies (31, 32) on each side of a lantern...
4360186 Swivel joint  
A Swivel Joint for use on producing wells which are being pumped, having an upper and a lower annular member, in juxtaposition, with a coil spring separating the members, the lower member having a...
4356997 Flow control mechanism for high pressure wells  
A flow control mechanism for high pressure wells comprises a body structure having inlet and outlet passages and adapted for connection to a wellhead in such manner that a metering device meters...
4350346 Heat resistant seal  
A fire-resistant seal for maintaining sealing contact between the sealing surfaces within a packing box under high temperature differentials between the inner and the outer members of such packing...
4345766 Apparatus for sealing an oil well pump polished rod  
An apparatus having a tubular housing adapted for securing to a wellhead of an oil well for sealing a reciprocating oil well pump polished rod extending through the tubular housing. The housing is...
4192517 Anti-scale stuffing box improvement  
Buildup of scale on polished rods extending above certain stuffing boxes on wells producing relatively large amounts of brine incidental to oil production in arid regions is prevented by employing...
4138144 Wellhead sealing assembly  
A sealing assembly for sealing the annulus between a wellhead and a casing hanger in which the assembly includes a recess for receiving a sealing element in which the recess includes a tapered...
4017214 Packing gland leak retriever device  
Disclosed is a leak retriever for the packing gland on oil well pumps. The leak retriever has a reservoir disposed about the packing gland to collect oil which leaks through the gland and an...
3998245 Seal assemblies for water well casings  
An economical easily-installable and easily-removable seal assembly for use on water well casings comprises a dome having a vertically-movable central shaft fastened to a lower flange means so that...
3955822 Rod pump stuffing box control system  
A system for maintaining a constant biasing pressure upon the sealing members of a rod pump stuffing box utilizes a hydraulic system under a constant preset pressure to bias the seal member into...
3887196 SELF ALIGNING STUFFING BOX  
In a combination of an oil well pumping unit with sucker rods and the like, a self aligning stuffing box and well head seal to accommodate misalignment of the rods and tubing. The self aligning...
3523691 FLUID SEAL DEVICE  
3468374 SELF-COOLED OIL WELL POLISH ROD STUFFING BOX  
3395923 Self-lubricating stuffing box  
3369818 Oil well stuffing box packing guard  
3362345 Stuffing box  
3297091 Rotating gas drilling head  
Matches 1 - 50 out of 64 1 2 >