| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 201 | Multiple air hammer apparatus and excavating direction correcting method therefor | US09725947 | 2000-11-30 | US06467558B2 | 2002-10-22 | Osamu Miyamoto; Yoshio Akiyama; Taro Watanabe |
| Three air hammers are housed and arranged in a hammer case, and have bits at their respective ends. Each of the air hammers can be activated independently. In a normal excavation, the earth is excavated by activating all the air hammers. When correcting an excavating direction, only an air hammer positioned in the correct direction is activated first so that the earth in the correct direction is excavated in a predetermined amount. Next, all the air hammers are activated to excavate the earth. Thereby, a leading hammer can direct the excavation toward the correct direction, and thus the excavating direction is corrected. | ||||||
| 202 | Method of retarding sand build up in heavy oil wells | US09784388 | 2001-02-15 | US06439311B2 | 2002-08-27 | Peter Gerald Haseloh |
| A method of retarding sand build up in heavy oil wells involving a first step of providing a pumping apparatus with subterranean impellers coupled to a rotary top drive unit by a plurality of connective rods. The plurality of connective rods have fixed outwardly extending vanes that rotate with the plurality of connective rods and are configured to provide a supplementary lifting force. A second step involves positioning the plurality of connective rods in a heavy oil well having a circumferential sidewall. A third step involves activating the rotary drive unit to rotate the plurality of connective rods. The vanes attached to the connective rods assist in lifting sand to surface with the heavy oil. | ||||||
| 203 | Downhole tool | US09446930 | 1999-12-29 | US06401820B1 | 2002-06-11 | Ian Alastair Kirk; William Barron; Alistair Bertrum Clark |
| A tubing shoe (30) comprising: a body (32) for mounting on the end of a tubing string; and reaming members (36) extending longitudinally and helically around the body, the reaming members providing substantially complete circumferential coverage of the body whereby, in use, when the tubing shoe is advanced axially into a bore, the reaming members (36) provide reaming around the shoe circumference. A rotatable torque reducing sleeve or centraliser (38) may also be mounted on the body, rearwardly of the reaming members. | ||||||
| 204 | Irregular surface drill rod for a directional drilling machine | US09933575 | 2001-08-20 | US20020046882A1 | 2002-04-25 | Richard Kenneth Smith JR. |
| A horizontal drilling machine for directionally drilling a drill string into the ground. The drill string includes a plurality of elongated members threaded together in an end-to-end relationship. The drilling machine includes a track, a rotational driver mounted on the track, and a thrust mechanism for propelling the rotational driver along the track. The rotational driver is used to rotate the drill string in forward and reverse directions about a longitudinal axis of the drill string. The drill string is rotated in the forward direction to thread the elongated members together, and rotated in the reverse direction to unthread the elongated members from one another. Rods of the drilling machine have surface irregularities for mixing or agitating drilling fluid within the bore. | ||||||
| 205 | Multiple air hammer apparatus and excavating direction correcting method therefor | US09725947 | 2000-11-30 | US20010006120A1 | 2001-07-05 | Osamu Miyamoto; Yoshio Akiyama; Tao Watanabe |
| Three air hammers are housed and arranged in a hammer case, and have bits at their respective ends. Each of the air hammers can be activated independently. In a normal excavation, the earth is excavated by activating all the air hammers. When correcting an excavating direction, only an air hammer positioned in the correct direction is activated first so that the earth in the correct direction is excavated in a predetermined amount. Next, all the air hammers are activated to excavate the earth. Thereby, a leading hammer can direct the excavation toward the correct direction, and thus the excavating direction is corrected. | ||||||
| 206 | Earth formation surveying device | US09403973 | 1999-10-28 | US06241029B1 | 2001-06-05 | Josef Guillaume Christoffel Coenen; Barend Jan Pestman |
| A survey device for use in a borehole formed in an earth formation. The device includes a carrier body carrying earth formation survey apparatus and drilling device arranged at the front end of the device for drilling of the borehole, a device for progressing the carrier body through the borehole in correspondence with progress of drilling by the drilling device and a device for removing the rock particles resulting from the drilling process. The device for removing the rock particles comprises a device for transporting the rock particles to the rear end of the device and depositing the rock particles into the borehole behind the rear end of the device. | ||||||
| 207 | Drill pipe | US09242573 | 1999-04-22 | US06167917A | 2001-01-02 | William Russell Scott Aitken |
| A drill pipe having a length of conduit having a first diameter, a first and a second end portion, where each end portion has a second diameter greater than the first diameter. An enlarged portion is located between and spaced from the first and second end portions, where the enlarged portion comprises a central section which has a third diameter greater than the first diameter. The central section has a substantially smooth external surface, and two end sections, one end section at either end of the central section, which vary in diameter between the first and the third diameter. One of the end sections has a spiral formation thereon. | ||||||
| 208 | Element of a rotating drill pipe string | US039338 | 1998-03-16 | US6056073A | 2000-05-02 | Jean Gilbert Boulet |
| A rotating drill pipe string element (1) includes at least one portion (2a) of tubular shape whose external surface has at least one groove (8a, 8b, 8c, 8d, 8e) arranged in a helix having as an axis the axis (O) of the tubular portion (2a). The groove (8a, 8b, 8c, 8d, 8e) has a cross-section in a plane perpendicular to the axis (O) of the portion having an undercut part (10) lying to the rear of a radius (OA) of the cross-section of the tubular portion, (2a), the radius passing through the external end (A) of the area of the groove (8c) lying to the rear, with respect to the forward direction of rotation of the pipe string of the groove (8c) with respect to the forward direction of rotation (.OMEGA.) of the pipe string. | ||||||
| 209 | Methods and systems for subterranean multilateral well drilling and completion | US731464 | 1996-10-15 | US5735350A | 1998-04-07 | James R. Longbottom; Don C. Cox; John C. Gano; William R. Welch; Pat M. White; Richard Charles Jacquier; Tommie Austin Freeman; Harold Wayne Nivens; Paul David Holbrook; David H. Mills |
| Improved methods and systems for creating a multilateral well and improved multilateral well structures. In one aspect of the present invention, the method comprises the steps of: (1) setting a diverter at a prescribed position and a prescribed orientation in a main well flow conductor located within a main wellbore, (2) boring through a sidewall of the main well flow conductor and into a material surrounding the main well flow conductor, the boring creating a window having a particular shape in the sidewall, the orientation of the diverter determining a lateral position of the window in the main well flow conductor, a lateral wellbore thereby being formed in the material and extending from the main wellbore, (3) lining the lateral wellbore with a liner, the liner having an interface end, the interface end adapted to contact a periphery of the window in the sidewall and (4) cementing the liner in place within the lateral wellbore, the step of cementing creating a pressure-bearing seal between the periphery of the window and the interface end of the liner. The method allows multiple lateral wellbores to be joined to the main wellbore and provides for connectivity among main and lateral wellbores, pressure-bearing sealing of joints to allow selective isolation of one or more wellbores or portions thereof and subsequent wellbore access for rework or other purposes. | ||||||
| 210 | Downhole tools having circumferentially spaced rolling elements | US343478 | 1994-11-28 | US5649603A | 1997-07-22 | Neil Andrew Abercrombie Simpson; Paul Raymond Coey |
| A downhole tool for providing rotary support of a downhole assembly in which the tool is incorporated, the tool also converting rotary contact with the wellbore to a longitudinal force tending to propel the assembly along the wellbore. The tool resembles a roller stabilizer in which the roller axes are skewed to be tangential to a notional helix, such that the natural (non-slipping) paths of roller contact with the wellbore have a longitudinal component in addition to the usual circumferential path. The tool can be used on drill strings and in downhole motor assemblies. The invention has particular advantage in highly deviated wells since it simultaneously compensates for increased bore friction and dynamically enhances weight-on-bit. | ||||||
| 211 | Offshore system and method for storing and tripping a continuous length of jointed tubular conduit | US488476 | 1995-06-08 | US5547314A | 1996-08-20 | Thomas J. Ames |
| A system and method is provided for storing a continuous length of an assembled jointed tubular conduit on an offshore vessel and for conveying the tubular conduit between the deck of the vessel and a subsurface wellhead on the floor of the body of water. The system includes a carousel positioned around the perimeter of the vessel defining a continuous close-curved carousel pathway in parallel or coplanar alignment with the horizontal deck. The assembled tubular conduit is maintained in coiled storage along the carousel pathway until it is desired to convey the tubular conduit into or out of the carousel. Horizontal and vertical directing means are provided that, in cooperation with rotation of the carousel, enable uncoiling of the tubular conduit from the carousel into the water or recoiling of the tubular conduit into the carousel from the water. The horizontal directing means is positioned proximal to the carousel, engaging the tubular conduit and defining a substantially horizontal curved pathway for the tubular conduit, thereby redirecting the tubular conduit in a linear radial direction relative to the circumferential carousel pathway. The vertical directing means is positioned proximal to the deck opening, engaging the tubular conduit and defining a vertical curved pathway for the tubular conduit, thereby redirecting the tubular conduit in a linear perpendicular direction relative to the carousel pathway. | ||||||
| 212 | Helical drill | US338065 | 1994-11-14 | US5503237A | 1996-04-02 | Axel Neukirchen |
| A rock drill is formed of an axially extending shank (2) with a drill head (1) at one end and chuck end (3) at the other end. The axially extending outside surface of the shank has at least one helically extending conveying groove (4, 5) and at least one helically extending land (6, 7). The land (6, 7) forms the radially outer surface of the shank (2). Grooves (8, 9) extending perpendicularly of the shank axis are formed in the surface of the land. | ||||||
| 213 | Centralizing liner hanger method and system for subterranean multilateral well drilling | US380905 | 1995-01-30 | US5499681A | 1996-03-19 | Pat M. White; John C. Gano |
| A liner hanger and a method of hanging a liner. The liner hanger comprises: (1) a slip having a gripping surface thereon and adapted to slide axially with respect to the liner between a retracted position and a deployed position, (2) a slip housing located radially outwardly of the slip and covering the slip when the slip is in the retracted position, (3) a slip carrier slidably mounted to the liner and adapted to move axially with respect to the liner and (4) a slip arm extending from the slip carrier and coupling the slip carrier and a slip having a gripping surface thereon and adapted to slide axially with respect to the liner between a retracted position and a deployed position, the slip carrier capable of transmitting a deploying force to the slip via the slip arm to move the slip from the retracted position to the deployed position, the slip arm partially collapsing when the deploying force exceeds a predetermined limit, a nose extension of the slip carrier moving toward and directly engaging the slip as the slip arm partially collapses allowing further transmission of the deploying force exceeding the predetermined limit from the slip carrier to the slip via the nose extension to centralize the liner hanger(s). In a related embodiment of the present invention, spaced-apart first and second liner hangers may cooperate to allow the liner to be employed as a drill guide. | ||||||
| 214 | Diverter, diverter retrieving and running tool and method for running and retrieving a diverter | US380899 | 1995-01-30 | US5499680A | 1996-03-19 | Jeffrey S. Walter; John C. Gano; Desmond Jones |
| A diverter for a subterranean well, a diverter retrieving tool and methods of diverting objects traversing the well and retrieving the diverter. The diverter comprises: (1) a body having a lower portion adapted to be coupled to a diverter anchoring structure and an upper portion having a slanted diverting surface, the diverter adapted to be placed within a main borehole of the subterranean well at a predetermined location and orientation proximate a junction of a lateral borehole with the main borehole, the slanted diverting surface adapted to redirect an object having a particular diameter and coming into contact with the diverter into the lateral borehole and (2) a compliant spring member associated with the slanted diverter surface. The spring member is resiliently retractable toward the slanted diverter surface to allow the object to traverse the junction and enter the lateral borehole, the diverter therefore dynamically adjustable to compensate for an insufficient minimum diameter of a selectable one of the main borehole, junction and lateral borehole. The diverter is configured to receive a flexible finger of the retrieving tool into a central longitudinal shaft therein to engage and retrieve the diverter without having to orient the retrieving tool. | ||||||
| 215 | Gravel pack assembly with tubing seal | US38436 | 1993-03-26 | US5348092A | 1994-09-20 | H. Mitchell Cornette; Stephen E. Morrison; Michael J. Barton |
| A sand control screen installation for a well includes an auger type sand control screen connected to a length of smooth-walled tubing which is disposed in a tubing seal support sub connected to a packer and having a frangible coupling interconnecting the tubing with the sub whereby the assembly may be pre-installed in a wellbore, the packer set and the tubing decoupled from the sub for reciprocation relative thereto while a fluid tight seal is maintained between portions of the wellbore to prevent underbalanced or overbalanced fluid flow during installation of the sand control screen. In an alternate embodiment, the tubing seal support sub has suitable lock mechanism for installation in a landing nipple in wells with pre-installed tubing strings and packers. | ||||||
| 216 | Method and tool string for curving a vertical borehole horizontally | US578980 | 1990-09-07 | US5085283A | 1992-02-04 | Ed O. Seabourn; William R. Ericksen |
| A flexible drill string for curving a vertical borehole laterally towards the horizontal, comprising an elongated flexible casing made of a plurality of sections with each section having a longitudinal central axis. Each section is attached to an adjacent section such that the casing string can conform to a segment of a curve. An elongated flexible drilling string is rotatably received within the flexible casing and an annulus is formed between the casing and drill string. The drill string has a central fluid passageway of resilient material surrounded by a plurality of longitudinally extending bendable members that jointly encapsulate the central fluid passageway and forms an outer housing about the drill string. The drill string central passageway is an elastomeric conduit and the plurality of bendable members are placed circumferentially thereabout and are connected together to form the housing. The elongate bendable members are individual cables spaced an equal radial distance from the longitudinal axis of the passageway , and a connector affixed at each end of the cables enables the string to be connected into a tool string. | ||||||
| 217 | Methods and apparatus for drilling subterranean wells | US595550 | 1990-10-11 | US5040620A | 1991-08-20 | Dwight S. Nunley |
| A method and apparatus is provided for drilling high-angle, directional and horizontal subterranean wells for hydrocarbon extraction. A drillstring component having at least one helical undercut pumping chamber is described, which drillstring component is designed especially for increased flexibility in directional drilling applications. The undercut pumping chamber of the invention drillstring component is designed to improve volumetric efficiency in removing cuttings from the borehole, and to reduce the incidence of differential sticking or key-seating. | ||||||
| 218 | Gravel pack well completion with auger-screen | US518046 | 1990-05-04 | US5036920A | 1991-08-06 | Holley M. Cornette; Michael H. Johnson; Bennett M. Richard |
| A method and apparatus for installing a gravel pack completion which does not require the circulation of fluids during installation. The gravel is first placed or preset within the completion zone and then a well completion tool (e.g. a fluid-permeable liner) having an auger blade thereon is lowered and rotated into the present gravel without circulating fluid through the tool. Since the auger blade mechanically displaces the gravel upward as the tool is moved into the preset gravel, there is no need to flow fluid under pressure to "fluidize" the gravel as is required in prior completions of this type. | ||||||
| 219 | Cast-in-place piling method and apparatus | US458363 | 1989-12-28 | US5013191A | 1991-05-07 | Katsumi Kitanaka |
| An apparatus for piling a cast-in-place pile includes an earth auger main body and an auger head. The earth auger main body includes a hollow shaft, a spiral screw blade provided about the hollow shaft, a spiral belt provided on an outer circumference of the spiral screw blade and in parallel with an outer circumferential surface of the hollow shaft. The auger head is connected to a lower end of the earth auger main body and includes a holow shaft, one or two spiral screw blades provided about the hollow shaft, one or two spiral belts provided on outer circumferences of the spiral screw blades and in parallel with the outer circumferential surface of the hollow shaft, and excavating bits provided at a lower end of the spiral screw blades, and device for preventing excavated earth and sand from flowing in a return direction when the auger head is rotated in a reverse direction. | ||||||
| 220 | Method and device for stabilizing the path of a drilling tool | US455976 | 1989-12-22 | US4995466A | 1991-02-26 | Roy W. Snow, Jr. |
| An apparatus, and method of using the apparatus, for use in a drill string inserted into a borehole to stabilize the path of travel of a drilling tool. The apparatus is attached to the lower end of a drill string, and comprises a tubular section having a passageway therethrough communicating with the drill string passageway and a sleeve telescoped over the tubular section having at least two camming surfaces on the outer periphery thereof, the camming surfaces being substantially on opposite sides of the sleeve and spaced longitudinally along the sleeve. The rotation of the sleeve on the tubular section is selectively controlled. | ||||||
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