| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 121 | Apparatus and method for reverse circulation cementing a casing in an open-hole wellbore | US11014350 | 2004-12-16 | US07290612B2 | 2007-11-06 | Henry E. Rogers; Earl D. Webb |
| The present invention is directed to an apparatus and method for reverse circulation cementing a casing in an open-hole wellbore. The apparatus includes a surface pack-off device, which has a housing defined by an upper section and lower section. A load bearing plate is secured to the housing between the upper and lower sections. The load plate and lower section of the housing cooperate to prevent sloughing of the earth at the surface of the wellbore via a section of casing string. The surface pack-off device also includes a casing hanger, which couples to the casing in the wellbore. Fluid inlets allow the cement to be pumped into the wellbore in the annulus formed between the casing and wellbore sidewall. The method includes the steps of installing the surface pack-off device and operation on reverse circulation of the cement down the annulus. | ||||||
| 122 | Methods and systems for cementing wells that lack surface casing | US10897249 | 2004-07-22 | US07290611B2 | 2007-11-06 | Anthony M. Badalamenti; Simon Turton; Karl W. Blanchard; Ronald R. Faul; Michael G. Crowder; Henry E. Rogers; James E. Griffith |
| Methods and systems for cementing casing in well bores drilled in subterranean formations, and more particularly, methods and systems for cementing casing in a well bore without surface casing or a well head are provided. A method provided herein may comprise sealing an annulus at the mouth of the well bore with a seal; pumping a cement composition into the annulus through the seal; and taking circulation fluid returns from the inner diameter of the casing. A system provided herein may comprise a seal of an annulus at the mouth of the well bore; a cement composition pump fluidly connected to the annulus through the seal; and a coupling connected to the exposed end of the casing for taking circulation fluid returns from the inner diameter of the casing. | ||||||
| 123 | Post wellhead collar | US11346053 | 2006-02-02 | US20070175628A1 | 2007-08-02 | Jon Pearson |
| An adjustable wellhead collar for positioning around a tubularly cased well or any similar static structure includes a substantially water impermeable disk-like plate having a conical surface extending a substantial radial distance outward and downward from the casing, pipe, pole or post, the disk-like plate having a centrally disposed opening for receiving the upper end of the casing, pipe, pole or post, the opening being surrounded by one or more annular series of marks or perforations, each series defining a removable annular segment for adjusting the size of the opening for receiving multiple sizes of an upper end of the casing, pipe, pole or post, and one or more series of marks or perforations defining at least one removable conduit segment, eccentric with respect to the central opening, for receiving a wiring conduit of a well, with the removable segments being perforated or scored to break along predefined seams. | ||||||
| 124 | Apparatus and method for reverse circulation cementing a casing in an open-hole wellbore | US11255573 | 2005-10-21 | US07225871B2 | 2007-06-05 | Henry E. Rogers; Earl D. Webb; Karl Blanchard |
| A system for cementing a casing in an open wellbore having no surface casing, wherein an annulus is defined between the casing and the wellbore, the system having: an annular plug around the casing at the mouth of the wellbore; a cement composition pump fluidly connected to the annulus through the seal; and a coupling connected to the exposed end of the casing for taking circulation fluid returns from the inner diameter of the casing. | ||||||
| 125 | CONDUCTOR CASING INSTALLATION BY ANCHOR HANDLING/TUG/SUPPLY VESSEL | US11458411 | 2006-07-19 | US20070017680A1 | 2007-01-25 | Gordon Wilde; Pieter Van Luipen; Eckhard Zamboni |
| An anchor handling/tug/supply (AHTS) vessel is employed to engage conductor casings with the seafloor. The conductor casings initially penetrate the seafloor to a first depth under their own weight. The conductor casings may optimally be further engaged with the seafloor to a second depth by the application of suction to the interiors thereof or by the use of a drop hammer. The conductor casings are driven to grade by a hydraulic pile driving hammer deployed from the deck of the AHTS vessel the previously deployed conductor casings to grade before being recovered to the deck of the AHTS vessel. | ||||||
| 126 | Methods and systems for cementing wells that lack surface casing | US10897249 | 2004-07-22 | US20060016600A1 | 2006-01-26 | Anthony Badalamenti; Simon Turton; Karl Blanchard; Ronald Faul; Michael Crowder; Henry Rogers; James Griffith |
| A method for cementing a casing in an open well bore having no surface casing, wherein an annulus is defined between the casing and the well bore, the method having: sealing the annulus at the mouth of the well bore with a seal; pumping a cement composition into the annulus through the seal; and taking circulation fluid returns from the inner diameter of the casing. A system for cementing a casing in an open well bore having no surface casing, wherein an annulus is defined between the casing and the well bore, the system having: a seal of the annulus at the mouth of the well bore; a cement composition pump fluidly connected to the annulus through the seal; and a coupling connected to the exposed end of the casing for taking circulation fluid returns from the inner diameter of the casing. A seal of a well bore annulus at the mouth of an open well bore having a casing extending there from and no surface casing, the seal having: an annular plug around the casing in the annulus below and proximate the mouth of the well bore, wherein the annular plug has conduit through the annular plug allowing fluid communication with the annulus below the annular plug; an anchor attachable to the casing above the annular plug; and at least one jack positioned between the annular plug and the anchor, wherein the at least one jack pushes the annular plug downwardly away from the anchor. | ||||||
| 127 | Method and apparatus for injecting packing into stuffing boxes for reciprocating rods | US11137285 | 2005-05-25 | US20050230106A1 | 2005-10-20 | Mark Mahoney; Ian Rimmer; Benny Williams |
| A stuffing box for a polished rod used with a downhole pump uses injectable packing to provide a seal around the polished rod. The stuffing box has a chamber for receiving the packing. The chamber has an opening to allow the addition of packing to the chamber. The packing is maintained in a compacted condition by either injecting additional packing through the opening or adjusting the volume of the chamber. | ||||||
| 128 | Screw-driven wellhead isolation tool | US10138544 | 2002-05-03 | US06666266B2 | 2003-12-23 | Phillip M. Starr; Don S. Folds; Lee Wayne Stepp |
| A wellhead isolation tool comprises a threaded drive rod coaxially aligned with a tubular mandrel having a smooth outer surface. A motor displaces the threaded drive rod vertically without rotating the drive rod to move the tubular mandrel through a wellhead into a tubular element in a well. The lower end of the tubular mandrel will sealingly engage the tubular element in the well so that treating fluids or other substances such as, but not limited to, chemicals and erosive flows, can be displaced therethrough at high pressures into the well to fracture or otherwise treat the well without damaging the wellhead. | ||||||
| 129 | Screw-driven wellhead isolation tool | US10138544 | 2002-05-03 | US20030205373A1 | 2003-11-06 | Phillip M. Starr; Don S. Folds; Lee Wayne Stepp |
| A wellhead isolation tool comprises a threaded drive rod coaxially aligned with a tubular mandrel having a smooth outer surface. A motor displaces the threaded drive rod vertically without rotating the drive rod to move the tubular mandrel through a wellhead into a tubular element in a well. The lower end of the tubular mandrel will sealingly engage the tubular element in the well so that treating fluids or other substances such as, but not limited to, chemicals and erosive flows, can be displaced therethrough at high pressures into the well to fracture or otherwise treat the well without damaging the wellhead. | ||||||
| 130 | Method for installing a sensor in connection with plugging a well | US09673475 | 2000-10-16 | US06478086B1 | 2002-11-12 | Henning Hansen |
| A method for plugging wells for use in connection with extraction of a fluid. Above a leakage site in the well, from which the fluid flows into the well from a subsurface formation surrounding the well, there is a set a seal (20), which seals the well, and on the bottom of which is a sensor device (22) for measuring well data. On the top of the seal (20) is a connecting part (24) which is connected to the sensor. Above the seal (20) the well is filled with a temperable, liquid sealant (32), into which is lowered via a cable (38) a connecting device (40) with a connecting part (42) until the connecting parts (24, 42) have been connected. Both the lowering and this connection are provided by means of the weight of the connecting device (40). The cable (38) is connected to a logging device (50) outside the well opening and the sealant (32) is set. | ||||||
| 131 | Mechanical plug device | US466901 | 1995-06-06 | US5664626A | 1997-09-09 | William F. Watts, III |
| A mechanical plug device for an environmental monitoring well is disclosed for sealing the exposed top end of a well casing in order to prevent pollutants from entering the monitoring well. The plug is lockable to prevent unauthorized access to the monitoring well. A valve assembly is attached to the plug so as to allow a user to selectively fluidly communicate with a sampling port and the interior of the monitoring well, thereby permitting fluid samples to be extracted through the plug without removing the plug from the well and without exposing the well interior to the outside atmosphere. | ||||||
| 132 | Well head cutting and capping system | US586225 | 1996-01-16 | US5623994A | 1997-04-29 | Jerry H. Robinson |
| Systems and methods for cutting a well casing and then capping the cut well casing are provided. A well casing cutting assembly having a tensioned wire cutting element may first be moved into position relative to the well casing and operated so that the cutting element reciprocates transversely (i.e., in saw-like fashion) while simultaneously being advanced forwardly into cutting relationship with the well casing. The cutting assembly is removed from the cut well casing and replaced with a well capping assembly having a shield enclosure and a thread cutting subassembly. The thread cutting subassembly includes an interiorly threaded pipe coupling which rigidly carries a normally open, remotely controlled valving assembly and is mounted to the shield enclosure so as to be capable of both rotational and vertical movements relative to the cut well casing. By simultaneously rotating and downwardly displacing the thread cutting element, threads will be formed on the exterior surface of the well casing and will threadably couple the pipe coupling automatically thereto. The valving mechanism may then be operated so as to cap the well casing. Structure is provided which enable quick disassembly of the thread cutting subassembly from the pipe coupling so that the well capping assembly can be removed and reused. | ||||||
| 133 | Expansion foam borehole plug and method | US153813 | 1993-11-17 | US5497829A | 1996-03-12 | Richard A. Rajkovich |
| A borehole decking plug which is created by a self-expanding plastic foam. Two closed waterproof pouches, an inner pouch and an outer pouch, each contain a separate component of the foam. The inner pouch is contained within the outer pouch, and both are contained within a third open external pouch having a tether attachment. Upon breaking the inner pouch, the separate foam components combine within the outer pouch to form a complete expansion foam. The foam expands slowly enough to provide sufficient time for the device to be lowered via the tether down a borehole to a preselected position. Once in position, the expansion foam bursts the outer pouch and escapes upward through the external pouch to form a deck plug at the preselected position. | ||||||
| 134 | Well plugging apparatus and method | US291463 | 1994-08-17 | US5435388A | 1995-07-25 | Bruce Matthews |
| An apparatus for plugging a burning or gushing well comprises a hollow tubular plug body (20) sized for insertion into a well casing (112). Provided on the plug body are a retainer module (54) for retaining the plug within the well casing; a sealing sleeve (46) provided for forming a seal between the plug body and the well casing; and a valve assembly (50) for selectively closing a hollow internal passageway of the tubular plug body. The plug body is loaded on a gantry assembly (21), which in turn is carried by a shielded vehicle (24). At the base of the gantry assembly are provided an alignment assembly (37) for aid in approach to the well casing and a cutter assembly (40) for sawing off inordinately protruding casings. In one embodiment, a protective break-away shell (118) circumferentially surrounds at least a portion of the plug body. | ||||||
| 135 | Method and apparatus for closing a wellhead casing | US716097 | 1991-06-17 | US5207779A | 1993-05-04 | Charles Chaplinski |
| A steerable compression clamp assembly includes a guide plate for aligning the assembly with an oil wellhead casing and clamp and compression assemblies for collapsing the casing to seal same. The clamp assembly provides an articulating arm which cooperates with a stop arm. The compression assembly includes a pair of crushing dies which mount to a hydraulic ram. In alternative configurations, a cable directed drag skid or a tracked vehicle support the compression assembly. Remotely mounted controls direct machine operation and steering. A hydraulic cylinder may also be included with a split duide plate to provide a controlled separation of the guide plate during compression. | ||||||
| 136 | Oil/gas separator for installation at burning wells | US748586 | 1991-08-22 | US5191940A | 1993-03-09 | Carol T. Alonso; Donald A. Bender; Barry R. Bowman; Alan K. Burnham; Dwayne A. Chesnut; William J. Comfort, III; Lloyd G. Guymon; Carl D. Henning; Knud B. Pedersen; Joseph A. Sefcik; Joseph A. Smith; Mark S. Strauch |
| An oil/gas separator is disclosed that can be utilized to return the burning wells in Kuwait to production. Advantageously, a crane is used to install the separator at a safe distance from the well. The gas from the well is burned off at the site, and the oil is immediately pumped into Kuwait's oil gathering system. Diverters inside the separator prevent the oil jet coming out of the well from reaching the top vents where the gas is burned. The oil falls back down, and is pumped from an annular oil catcher at the bottom of the separator, or from the concrete cellar surrounding the well. | ||||||
| 137 | Magnetic-pulse sealing of oil-well-head pipe | US730668 | 1991-07-16 | US5188177A | 1993-02-23 | Randy D. Curry |
| A well-head pipe of a leaking oil well is sealed by radial application of a high-energy magnetic pulse to the well-head pipe to thereby plastically deform the metal of the pipe casing and form the metal into a seal that caps the well-head pipe without cracking the pipe. A system for sealing an oil-well-head pipe having a metal casing includes an electromagnet dimensioned for placement around an exposed portion of the well-head pipe, with the electromagnet being disposed to radially apply a magnetic field to the pipe when the electromagnet is placed around the exposed portion of the pipe; and a capacitor bank and a transmission line for providing a high-energy current pulse to the electromagnet to cause the electromagnet to radially apply a high-energy magnetic pulse to the pipe to plastically deform the metal of the pipe casing and form the metal into a seal that caps the well-head pipe. | ||||||
| 138 | Oil well fire extinguisher having oil jet dispersing screens | US761428 | 1991-09-17 | US5165484A | 1992-11-24 | Victor B. Chaput |
| A system to extinguish oil well fires includes screens for dispersing an oil jet through the walls of a cylinder by the use of layered mesh screens, resulting in the reduction of the velocity of the oil jet by impact with the screens and the interior wall of the cylinder to a point where it will then flow down the wall of the cylinder by gravity. This system also includes a collar around the cylinder, through which water will be pumped and sprayed on the cylinder through holes formed in the collar and directed at the cylinder. Additional holes may also be formed and may also be formed and directed to the surrounding area to help extinguish any remaining ground fire. This system allows the flame of an oil well fire to go into the cylinder and the combustion in the cylinder will then produce carbon dioxide and water. Carbon dioxide is prevented from escaping by a flapper valve, which seals the cylinder from a rush of external air. Because of the absence of oxygen, any flame entering the cylinder is immediately extinguished, and once the fire is extinguished and the cylinder is removed, the oil well can be capped according to conventional methods. | ||||||
| 139 | Oil well-fire containment device | US69016891 | 1991-04-22 | US5150752A | 1992-09-29 | GUNST OLE; FISHER GARY R |
| An apparatus for reaming and tapping an oil well casing and sealing the casing against escaping oil is disclosed. The apparatus comprises a self-tapping sleeve assembly the functions of which are to provide an internal seal to an oil well casing and cause cessation of escaping oil. In the process of capping the well, burning oil, if present, is simultaneously extinguished. Utilizing the present invention, there is no necessity of providing water to cool the wellhead prior to capping, no need to excavate reservoirs to contain oil after fire extinguishment, nor is there need to bring a crew to the well head until the well is capped and flow stopped. | ||||||
| 140 | Oil well head fire cap | US716921 | 1991-06-18 | US5119887A | 1992-06-09 | Robert J. Rosa |
| An Oil Well Head Fire Cap is a self-locking and sealing adapter coupling that, when lowered onto an uncontrolled well head fire, will connect a new well head valve to a burning oil well casing. When the valve is closed, the fire is extinguished by stopping the flow of gushing fuel. The Coned shape of the device will allow it to center itself and, when forced down with a cement anchor block, will compress an inner casing into a tapered sleeve until it reaches the seal material and seats. A plurality of spring-engaged sprags, set in recesses, with upwardly pointed horizontal teeth, will roll back, out of the way, as the coupling is lowered on the outer, or surface, casing. As the anchor block is removed, the coupling is lifted by the downhole pressure. The spring-engaged sprags will bite into the outer casing forcing them to roll out tighter against the outer casing, making a firmer grip or deeper "bite". The embodiment of the coupling/Fire Cap will be of corresponding shape to the removable cement anchor block. | ||||||
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