| 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 | REMOTE OPERATION OF A ROTATING CONTROL DEVICE BEARING CLAMP AND SAFETY LATCH | US13300335 | 2011-11-18 | US20120125633A1 | 2012-05-24 | Leonard C. LINDE; Reece E. CASHION; Larry D. WHITE |
| An RCD can include a housing assembly which contains a bearing assembly and an annular seal which rotates and seals off an annulus between a tubular string and an RCD body, a remotely operable clamp device which selectively permits and prevents relative displacement between the housing assembly and the body, and a remotely operable safety latch which selectively permits and prevents unclamping of the clamp device. A method of remotely operating an RCD clamp device can include remotely operating a safety latch which selectively permits and prevents unclamping of the clamp device, and remotely operating the clamp device while the safety latch is in an unlatched position, thereby unclamping a bearing housing assembly from the RCD body. Another RCD can include a remotely operable clamp device which selectively permits access to an RCD body interior, and a remotely operable safety latch which selectively prevents unclamping of the clamp device. | ||||||
| 122 | Seal for a drill string | US12597823 | 2008-04-04 | US08066062B2 | 2011-11-29 | Per Espen Edvardsen; Tom Kjetil Askeland |
| Sealing arrangement for dynamic sealing around a drill stem (16) or a coiled tubing is described, comprising an elongated, dynamic sealing unit (10) which is arranged to surround the drill stem (16), in that the sealing unit (10) comprises a number of sets with main seals (20) arranged mutually spaced apart in the longitudinal direction of the sealing unit (10), where said main seals (20) comprise at least one disc-formed or ring-formed packer element (30) of an elastic material, such as an elastomeric material, arranged to surround said drill stem (16). Said main seal (20) comprises at least one inlet channel arranged to receive a friction reducing medium through or via the seal directly into the seal surface (32) of the packer element (30), against the drill stem (16). | ||||||
| 123 | Stuffing box maintenance device | US12711178 | 2010-02-23 | US07971837B1 | 2011-07-05 | Jack Wilkinson |
| A stuffing box maintenance device designed to be releasably secured to a polished rod above the stuffing box wherein the stuffing box maintenance device is configured to retain the tools and the maintenance items required to perform a maintenance procedure on the stuffing box. The stuffing box maintenance device further includes a body being planar in manner and rectangular in shape. A mounting ring secured to the body on one end is operable to surroundably mount the polished rod. An opening is located on the mounting ring opposite the body and is configured to allow the stuffing box maintenance device to be laterally coupled to the polished rod. The stuffing box maintenance device further includes a support rod for retaining at least one packing gland. The body is further configured to retain the hand tools necessary to perform a maintenance procedure on the stuffing box. | ||||||
| 124 | TEMPERATURE CONDITIONED STUFFING BOX WITH FLUID CONTAINMENT | US12995455 | 2009-05-27 | US20110139436A1 | 2011-06-16 | Perry St. Denis |
| A temperature conditioned stuffing box includes a housing having an outer surface, an inner surface defining a packing-receiving bore, a lower surface for attaching to a wellhead and an upper surface. A flow passage through the housing for passing temperature-conditioned fluid through the housing has an input and an output. | ||||||
| 125 | Wellsite Replacement System and Method for Using Same | US12761550 | 2010-04-16 | US20100270746A1 | 2010-10-28 | Denzal Wayne Van Winkle |
| Systems and methods for replacing equipment at a wellsite, the wellsite having a subsea stripper installed proximate a subsea borehole. The system has at least one seal assembly portion, at least one seal replacement arm and an actuator. The seal assembly portion(s) is (are) positionable in the subsea stripper and replaceable therefrom. The seal assembly portion(s) has (have) a packer extendable within the subsea stripper to form a seal about the subsea stripper. The seal replacement arm(s) is (are) for replacing the seal assembly portion(s) through a door of the subsea stripper. The actuator is for remotely actuating the seal replacement arm(s) to engage the seal assembly portion(s) whereby the seal assembly portion(s) is (are) remotely replaceable. | ||||||
| 126 | Wireline entry sub | US11995919 | 2006-07-17 | US07721798B2 | 2010-05-25 | Per G. Angman |
| A wireline entry sub includes a body for connection with a wellbore string of tubulars. An opening on the body extends a depth from a body outer surface to at least the longitudinal center axis. A wireline passage extends though the body from the opening to a lower end. A wireline pulling device is mounted on the sub body to apply pulling force to a wireline. The wireline pulling device ma be driven by a motor mounted on the wireline cut sub or by a to drive of a drilling rig. | ||||||
| 127 | Apparatus for wiping the interior of pipes | US11632578 | 2005-07-15 | US07681634B2 | 2010-03-23 | Ketil Botnmark; Kjell Mikalsen |
| An apparatus is provided for cleaning a drill string of drilling mud during tripping, the apparatus being provided with a mass and a volume such that it is able to float on a surface of the drilling mud in the drill string during the tripping operation. The apparatus includes a wiper device which is bellows-shaped, and a weight which is fastened to the top of the wiper device. | ||||||
| 128 | Packer Insert for Sealing on Multiple Items Used in a Wellbore | US12553761 | 2009-09-03 | US20090321066A1 | 2009-12-31 | John P. Scoggins; William L. Carbaugh |
| A packer insert for sealing multiple items used in a wellbore includes an elastomeric member having one or more channels configured to seal on the multiple items when compressed by a packing unit, wherein the elastomeric member is made of a material selected from rubber, an elastomer, and a composite material, and wherein the packer insert is not affixed to a pressure control apparatus having the packing unit disposed therein. The packer insert is axially fixed to at least one of the multiple items. | ||||||
| 129 | Wiper darts for subterranean operations | US11620455 | 2007-01-05 | US07559363B2 | 2009-07-14 | Matt Howell; Ronald L. Hinkie |
| Methods and devices useful in subterranean treatment operations are provided. One example of a device is a dart having a deformable body, a nosepiece connected to a lower terminus of the deformable body, and a channel extending through the deformable body and the nosepiece. One example of a method includes providing a dart, providing a production casing having at least one production sleeve therein, placing the dart in the production casing of a well bore, pumping a treatment fluid into the well bore, and allowing the dart to open the production sleeve within the production casing such that the treatment fluid is introduced into the subterranean formation through the production casing. | ||||||
| 130 | System and Method for Dynamic Sealing Of a Drill String | US11988524 | 2006-07-12 | US20090166046A1 | 2009-07-02 | Per Espen Edvardson; Tom Kjetil Askeland |
| A system and a method are described for a dynamic seal around a drill stem that moves into or out of water carrying, drilling fluid carrying or hydrocarbon carrying wells. The sealing arrangement (10) comprises an elongated sealing unit (30) that is arranged to envelop the drill stem (16), and a receiver unit (40) that is mounted to said existing equipment on the well and which is arranged to receive the elongated sealing unit (30), and that internal pressure support is provided in the sealing arrangement, at least corresponding to the surrounding pressure, to provide a dynamic seal around the drill stem (16). | ||||||
| 131 | Wiper Darts for Subterranean Operations | US11620455 | 2007-01-05 | US20080164031A1 | 2008-07-10 | Matt Howell; Ronald L. Hinkie |
| Methods and devices useful in subterranean treatment operations are provided. One example of a device is a dart having a deformable body, a nosepiece connected to a lower terminus of the deformable body, and a channel extending through the deformable body and the nosepiece. One example of a method includes providing a dart, providing a production casing having at least one production sleeve therein, placing the dart in the production casing of a well bore, pumping a treatment fluid into the well bore, and allowing the dart to open the production sleeve within the production casing such that the treatment fluid is introduced into the subterranean formation through the production casing. | ||||||
| 132 | Stripper rubber adapter | US11639382 | 2006-12-14 | US07334633B2 | 2008-02-26 | John R. Williams; Charles Todd Bishop |
| A connector is provided for selectively connecting or disconnecting a stripper rubber to or from drilling head equipment such as a bearing assembly. A generally cylindrical adapter connected to the equipment defines a primary bore accommodate a down hole tubular. One or more cam pin bores, adapted to house one or more cam pins, are positioned radially around the adapter substantially parallel to the primary bore. One or more cam lock bores adapted to house one or more at least partially rotatable cam locks, are offset from the pin cam bores such that each cam pin bore partially intersects a corresponding cam lock bore to form an apertaure through which the cam lock engages the cam pin. One or more cam pins are connected to the stripper rubber; and one or more at least partially rotatable cam locks house in the cam lock bores of the adapter optionally engage or disengage the pin cams to respectively connect or disconnect the stripper rubber to or from the equipment. | ||||||
| 133 | Stuffing box for progressing cavity pump drive | US10638737 | 2003-08-11 | US07044217B2 | 2006-05-16 | Vern Arthur Hult |
| Progressive cavity (PC) pump drive heads require a stuffing box to seal crude oil from leaking onto the ground where the polish rod passes from the crude oil passage in the wellhead to the drive head. Because crude oil typically contains fine sand particles, alignment between the stuffing box and the polished rod is imperfect, and PC drive heads run continuously, it is very difficult make stuffing boxes that last as long as desirable by oil production companies. By using a flexibly mounted standpipe in various configurations, around which is a bearing supported shaft carrying the sealing means, long term durability of the stuffing box can be achieved. By using a pressurization system such that the pressure output exceeds the pressure at the wellhead, stuffing box seal life can be extended and external leakage from the stuffing box can be eliminated. A double wall standpipe may be provided in some applications as part of the pressurization system. In some cases pressurization of the stuffing box is sufficiently advantageous that a floating standpipe is not economically warranted. | ||||||
| 134 | Non-rotating cement wiper plugs | US10308626 | 2002-12-03 | US06945326B2 | 2005-09-20 | Raymond F. Mikolajczyk |
| A non-rotating cement wiper plug has an insert, with inner and outer telescoping sleeves, within a resilient outer body. The outer body has annular fins which bear against a casing wall. The inner sleeve has a tapering nose within a tapered cavity in the outer sleeve. Slots in the outer sleeve form a plurality of segments. The inner and outer sleeves are preferably of a frangible material. When the plug is pumped down and lodges against downhole float equipment, pump pressure compresses the plug, forces the inner sleeve down within the outer sleeve, forces the segments radially outward, and fractures or separates the outer sleeve segments. The outer body is forced against the casing wall so tightly that it cannot rotate in response to the forces from a rotary drill bit. Lock surfaces on the inner and outer sleeves lock them together and maintain the outer body in its forced-outwardly position. | ||||||
| 135 | Well stuffing box packing | US10713682 | 2003-11-14 | US20050103505A1 | 2005-05-19 | Scott Lappin |
| Disclosed herein are apparatus and methods for sealing a well stuffing box. | ||||||
| 136 | Arrangement for the removal of cuttings and gas arising from drilling operations | US10334333 | 2002-12-26 | US06877565B2 | 2005-04-12 | Per Espen Edvardsen |
| An end piece arrangement is mounted on an end of a pipe sleeve to close off the annular passage between the pipe sleeve and drill stem and to divert an upward flow of sludge, cuttings and gas into a conduit system to transport the flow to a remote location. In one embodiemnt, the arrangement is a self-contained unit that houses seal rings to seal against the drill stem. In another embodiment, the arrangement includes separate components; i.e. a housing mounted on the pipe sleeve to divert the upward flow and a seal unit mounted on the drill stem and rotatably mounted in the housing. | ||||||
| 137 | Wellhead stuffing box support assembly | US10038935 | 2002-01-04 | US06637509B2 | 2003-10-28 | Keith D. Farquharson; Daniel J. Riddell |
| A stuffing box support assembly is configured to be positioned between a production pumping tree and a stuffing box of a wellhead. In use, the support assembly functions like a joint between the wellhead production tree and the stuffing box. The support assembly is configured such that it could tilt or move laterally to maintain a coaxial relationship between the stuffing box and a polished rod extending therethrough. This alignment between the stuffing box and the polished rod reduces wear and tear of the stuffing box packing. | ||||||
| 138 | Apparatus | US10275844 | 2002-11-08 | US20030146219A1 | 2003-08-07 | Austen Watson Ross |
| The present invention relates to apparatus this is particularly, but not exclusively, suited for use as a mud bucket in the oil and gas industry. The apparatus includes a seal that seals the mud bucket to a tubular (e.g. a stand of drill pipe). The seal is attached to the mud bucket via a quick release mechanism so that worn-out or damaged seals can be replaced quickly. | ||||||
| 139 | Stripper/packer | US09742070 | 2000-12-20 | US06484808B2 | 2002-11-26 | Donald L. Jones; David J. McWhorter; Richard M. Ward |
| A stripper/packer includes first and second packing elements, which are interchangeable to alleviate inventory concerns. The upper actuating hydraulic piston is the same diameter as the lower piston, which allows the operator to utilize the same amount of pressure to maintain a seal during transition between packing elements. Both packing elements are separately actuated from the lower side allowing the wellbore pressure to assist the seal. | ||||||
| 140 | System for accessing oil wells with compliant guide and coiled tubing | US10003859 | 2001-10-24 | US20020074135A1 | 2002-06-20 | Colin Stuart Headworth |
| The present invention provides a system including a spoolable compliant guide, injector and lubricator to obtain vertical access to any oil well and to insert coiled tubing therein to. The spoolable compliant guide provides a substantial distance between the injector and the annular well seal at the lubricator and functions as a crimp or bend resistor for the coiled tubing therein facilitating the imposition of compression forces thereon. This enables the injector to be conveniently positioned remote from the wellhead, not necessarily vertically above the wellhead, on the facility with the wellheads or on an entirely separate facility, vehicle or vessel. Wellheads on land, offshore or underwater can all be accessed. Pressurized well fluids are prevented from entering the spoolable compliant guide thus decreasing the risks associated with its damage, failure or emergency disconnection. | ||||||
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