| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 221 | Drilling tool | US411819 | 1989-09-25 | US4967855A | 1990-11-06 | Bernhard Moser |
| A drilling tool, in particular for use in axially striking drive machines for drilling in rock, concrete or the like, which drilling tool is designed from both a vibration point of view by varying the abrupt changes in cross-section and from a drilling point of view by optimising the transport of the drilling dust. In order to arrange, from a vibration point of view, the abrupt changes in cross section, caused by the flute webs, in asymmetrically arranged axial positions, the inclination of the conveying flute constantly changes its size within a lead. Furthermore, the radial, tangential and axial force vector which acts on the drilling dust constantly changes its size, the radial force vector also changing its direction. In this way, the drilling dust is subjected to a constantly changing acceleration. | ||||||
| 222 | Drilling tool having frictionally rotatable drilling head | US359635 | 1989-05-31 | US4942931A | 1990-07-24 | Bernhard Moser |
| A drilling tool is proposed which is preferably suitable for making apertures in concrete work or masonry is fissured rock. To avoid damaging an interchangeable conveying helix (4), the connection between the conveying helix (4) and drilling head (3) is made as a frictional-resistance connection (FIG. 2). | ||||||
| 223 | Downhole gaseous liquid flow agitator | US794341 | 1985-10-31 | US4811786A | 1989-03-14 | G. N. Kamilos; D. D. Kennedy; L. J. Lederhos, Jr. |
| An apparatus and process of mixing a gaseous phase and a liquid phase within a tubing string in a well bore is described. The apparatus and process form a homogeneous gaseous phase liquid phase mixture without requiring a blocking restriction within the tubing string. | ||||||
| 224 | Apparatus for positioning well tools in deviated well bores | US44854 | 1987-05-01 | US4771830A | 1988-09-20 | William R. Peate |
| In the representative embodiment of the invention disclosed herein, new and improved tool-orienting apparatus is adapted to be secured on a well tool that is to be moved through a highly-deviated well bore. To assure that the well tool will remain in a selected angular orientation as it is moved in a well bore, the orienting apparatus includes a pair of oppositely-directed generally-helical guide rails that are respectively terminated in lateral projections that are eccentrically located on one side of the orienting apparatus so that the unbalanced weight of a well tool carrying the orienting apparatus will cause the tool to roll over into a selected angular orientation when the tool is being moved through a deviated well bore interval with the lateral projections riding on the lower wall of the well bore interval. | ||||||
| 225 | Drilling tool with an interchangeable conveying spiral | US862244 | 1986-05-12 | US4750572A | 1988-06-14 | Bernhard Moser |
| A drilling tool is proposed which is provided with an interchangeable conveying spiral and an axial supporting device of the conveying spiral. To achieve a cost-effective and simply constructed, but at the same time reliable axial support of the conveying spiral (14), an elastic sleeve (15) is held in a recessed groove (19) in the drill shank (11) against axial slipping by a support ring (17). | ||||||
| 226 | Sand control system | US797109 | 1985-11-12 | US4681163A | 1987-07-21 | John P. Guidry; Lee Roy C. Gavranovic |
| A Wellbore sand control and filtration system, method, and apparatus for controlling formation sands and for preventing the influx of formation sands into the wellbore, into the production string, and into the produced fluids, the system including introducing smooth particles into the wellbore with limited or no pumping either of particles or of fluids with the particles, introducing the production string into the wellbore with the bottom of the string being introduced into the accumulation of smooth particles, the bottom of the string having connected thereto a tool permitting flow of formation fluids into the production string, the tool moving into the accumulation of particles forcing particles into the perforation tunnels extending from the annulus through the casing and cement into the formation. The system, method, and apparatus may also be used in an open uncased uncemented hole. A tool is provided for facilitating the movement of the string through the particles. | ||||||
| 227 | Rod coupling with mounted guide | US846960 | 1986-04-01 | US4668117A | 1987-05-26 | Michael L. Bair |
| The following structure is connectible to a well sucker rod string:(a) an axially elongated coupling section having threads at its axially opposite ends for coupling to and between successive sucker rods in the string, to transmit string loading,(b) a rod guide extending about and bonded to the coupling section to project outwardly therefrom for engagement with the well bore during up and down stroking of the string.The guide typically comprises molded plastic material, is generally annular, and has a bore bonded to the outer surface of the section. | ||||||
| 228 | Stabilizer for drillstems | US779359 | 1985-09-23 | US4664206A | 1987-05-12 | Stuart D. Butler |
| An improved stabilizer for use in stabilizing both drill collars and other sections on a drill string is disclosed. The stabilizer has at least three circumferentially spaced helical blades which have a tapered portion at each end and a cylindrical portion therebetween, each blade overlapping the adjacent blade within each tapered portion as well as within the cylindrical portion. | ||||||
| 229 | Method and apparatus for hydrocarbon recovery | US775996 | 1985-09-13 | US4658916A | 1987-04-21 | Les Bond |
| Apparatus for radial drilling into selected formations adjacent an earth borehole, the apparatus consisting of concentric, counterwound spring shafts operating in conjunction with a rotary drive source and a guide housing positionable to direct the rotating bendable shaft down and outward in a radial direction. The apparatus includes bit weight limiting means and guide housing locking means which enable effective radial drilling operation in any selected angular and/or radial directions to greatly multiply and enlarge the producing formation interface. | ||||||
| 230 | Rock drill | US597457 | 1984-04-05 | US4549616A | 1985-10-29 | Gerhard Rumpp; Dieter Scholz |
| A rock drill is formed of an axially elongated member made up of a cutting bit at one end followed by a helically grooved shaft and then ending in a shank. At least a portion of the groove, viewed in the axial direction of the member, has a stepped bottom providing groove sections of different depths. The depth of the groove section from the surface of the shaft decreases in the direction toward the shank. The groove sections with stepped bottom commence at a certain axial length from the cutting bit. | ||||||
| 231 | Control method and apparatus for fluid delivery in a rotary drill string | US376340 | 1982-05-10 | US4489793A | 1984-12-25 | Roy Boren |
| The apparatus comprises a cylindrical casing or housing with an interior passageway in which is mounted a fluid divider comprising three air divider legs each of which is a tapered plate formed with a concave cavity or air scoop with curved upper edges that are joined together in the center so that the legs diverge downwardly and outwardly in the drill string passageway of the cylindrical housing. The legs support a divider hood dome on which is mounted three separate curved plates defining three air channels. The fluid is directed into the concave scoops then into channels that lead to the outside of the housing in an upwardly direction. Fluid also spills over the air divider scoops and travels onto the bit, cooling the bit and chip removal from around the rollers. | ||||||
| 232 | Reverse action auger | US580784 | 1984-02-22 | US4484642A | 1984-11-27 | Francis C. Evans |
| The present invention provides an improved auger for use in drilling holes in the earth. The auger has a helical flight which is wound in a direction opposite to the normal direction of rotation of the auger. Thus an auger which is to be rotated in a clockwise manner has its flight directed in a counterclockwise manner. As the auger enters the earth with its clockwise rotation the tailings created thereby encounter a downhole force created by the reverse flight and they are forced outwardly from the auger so that they enter natural fissures or porous zones of the earth along the wall of the hole. No tailings reach the surface of the earth to create environmental problems. When water is used, as in drilling deeper as for seismic exploration, the water and tailings enter the wall of the hole and create a form of cement which prevents wall collapse. Drilling is faster and more economical, with fewer breakdowns, than with conventional augers. | ||||||
| 233 | Sound attenuating rock drill shank | US324522 | 1981-11-24 | US4393947A | 1983-07-19 | Uwe Lutze; Dieter Scholz; Ernst Brennsteiner |
| A rock drill includes a drill shank with a boring head at one end and laterally enclosed for at least a portion of its length by a tubular shell. A helix extends around the outside of the tubular shell for carrying borings away from the boring head. Supporting members formed of a sound attenuating material are located between the helix and the other parts of the rock drill. | ||||||
| 234 | Integral blade cylindrical gauge stabilizer reamer | US309048 | 1981-10-06 | US4385669A | 1983-05-31 | Paul Knutsen |
| This invention is directed to a stabilizer-reamer which is useful in drilling oil wells and holes in mineral formations. The stabilizer-reamer extends the life of the drill bit by maintaining the diameter of the hole to original specifications. The stabilizer-reamer comprises a stabilizer portion which reduces excessive lateral movement of the drill bit, a reamer portion which reams away undersize portions of the walls of the hole and a rock chip grinding portion which breaks down oversize rock chips in the hole. | ||||||
| 235 | Reamer | US157867 | 1980-06-09 | US4350204A | 1982-09-21 | Gary B. Horton |
| A reamer for removing paraffin, scale, ice and other accumulations from the inside surfaces of oil well pump tubing and casing which includes a hollow, tapered shell or housing fitted with external blades and having an enlarged upper internal bore area to accommodate a threaded lock nut, and a threaded shaft projecting into the housing cavity in threadable cooperation with the lock nut and provided with stops to permit limited rotation of the shell on the shaft and to prevent the shaft from exiting the shell when fully extended from the shell on the lock nut. When the reamer is lowered by means of a wire line and swivel joint into a length of tubing or casing to the constricted area, and the shaft is extended in the shell, a repetitive impact load on the projecting end of the shaft effects rotation of the shell and blades on the shaft to remove the deposits. When the shell rotatably progresses to a fully threaded position on the shaft responsive to the impact load, upward pressure is then exerted on the shaft by means of the wire line, and the shaft rotates upwardly on the lock nut to the former position of full extension in the shell, where the load is again applied. A threaded shaft and cooperating lock nut for either clockwise or counter-clockwise rotation of the tapered shell can be used in the reamer, and the blades can be removed and the counter-clockwise shell rotation used to loosen tubing in the well. | ||||||
| 236 | Straight hole driller | US104277 | 1979-12-17 | US4285407A | 1981-08-25 | Travis L. Samford |
| For use in a drilling string, the preferred and illustrated embodiment depicts a drill collar to be placed in the lower parts of the drill string for straightening the hole. The preferred embodiment utilizes a generally square drill collar with a thick or heavy wall. It is square in cross section along the greater portion of its length, the four corners being slightly rounded to a specified diameter on rotation, and the four lengthwise corners of the regular cross section are all reinforced with hardfacing material to a specified depth, typically tungsten carbide. The four edges abrade the bore hole as the drill string penetrates the earth. In addition, the lower end of the tubular body includes lengthwise flutes in the form known on a stabilizer to guide the hole straightening device into the hole to be reamed by operation of the device. | ||||||
| 237 | Helical surface-shaped machine part and method for manufacturing the same | US700060 | 1976-06-25 | US4091693A | 1978-05-30 | Immanuel Straub |
| A helical surface-shaped machine part or component having a radially extended flank profile or section. At least two components wound in the same direction are joined together by means of their contacting coils in such a manner that their cross-sections augment one another to form the complete flank profile or section. | ||||||
| 238 | Method of forcibly introducing a curved steel pipe into the ground and a machine therefor | US710854 | 1976-08-02 | US4062196A | 1977-12-13 | Hiroshi Yoshida; Yoshitaka Kuwabara; Hideo Tsuchida |
| A method of forcibly introducing a curved steel pipe into the ground which comprises forcibly introducing into the ground a curved steel pipe in which has been encased an auger train consisting of a plurality of augers coupled in flexible manner with universal joints by jacking said pipe from its rear, rotating said auger train within said curved steel pipe, and conveying away the excavated earth and sand through said pipe, and a curved steel pipe pressing-in machine used in the above method. | ||||||
| 239 | Rock drilling bit | US3703214D | 1971-03-01 | US3703214A | 1972-11-21 | BOEHM OTTO; SCHOLZ WERNER |
| The present rock drilling bit comprises along its shaft portions of asymmetrical cross sectional areas for strengthening the drilling bit. These asymmetrical portions are distributed along and around the central axis of the shaft in such a manner that a curve which interconnects the surface centers of gravity of these portions which are located off said central axis, forms a spiral helix. These portions may be located in preferred sections of the drill bit shaft, especially in a transitionary section between the tip of the drill bit and the shaft proper or in another transitionary section between the shaft and a shank of the drilling bit.
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| 240 | Auger-type boring machines | US3565190D | 1969-03-06 | US3565190A | 1971-02-23 | ISHII MORINDO |
| Auger-type boring machines for drilling cylindrical holes in order to make pile foundations in the earth, comprising a double auger consisting of an outside auger and an inside auger, with oppositely twisted threads the latter being rotatably passed through the inside of the former, whereby efficiently to produce holes of large diameters, by rotating the augers in opposite directions.
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