| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 181 | Drill stem arrangement and method | US461046 | 1990-01-04 | US4987961A | 1991-01-29 | Branch M. McNeely, Jr. |
| A member M provides a preferred combination of reduced weight with increased resistance to buckling under compressive loading and includes a tubular member 10 with tool joints TJ at each end for connection to form a drill stem. The tubular member 10 further includes a first portion or pipe section 15 adjacent either one of the tool TJ and may include a second portion or pipe section 15' adjacent the other tool joint TJ which are of smaller or reduced diameter than the adjacent tool joint. An enlarged portion 20 extends longitudinally of the tubular member from adjacent the first portion to adjacent the second portion where there is a second portion adjacent the other tool joint. If there is only one first portion adjacent one tool joint, the enlarged diameter extends from adjacent such first portion to the tool joint at the other end of the tubular member. The enlarged portion 20 has a larger inner and outer diameter than the adjacent first portion. | ||||||
| 182 | Stabilizing and drilling apparatus and method | US244767 | 1988-09-15 | US4881605A | 1989-11-21 | Tommy M. Warren; Warren J. Winters; Jame F. Brett |
| To stabilize a drill string and to reduce or prevent wellbore deviation in directional drilling, weight rods by which weight is to be applied to drill bit are maintained free-standing and under compression within a drill string while the drill string itself is maintained in tension to limit or prevent lateral deviation of the weight rods in compression. Weight provided by the weight rods is transferred to the drill bit through a load transfer member in compression connected between the drill string and the drill bit. | ||||||
| 183 | Method for protecting a pipe casing from a drill pipe string | US090287 | 1987-08-28 | US4832137A | 1989-05-23 | John H. Walker |
| An improved method for protecting a drill pipe casing from a rotatable string of drill pipe longitudinally extended therethrough. The method involves positioning a collar structure circumferentially around the upper end of one pipe section which is internally threaded and then thereafter engaging therewith the lower end of a second pipe section which is externally threaded and engageable with said first pipe section. The collar structure is formed of a poly(arylene sulfide) and is a single unitary structure having circumferentially extended outer surfaces which are adapted to resist spinning with the drill pipe string positioned in the casing structure. | ||||||
| 184 | Method and apparatus for controlling azimuthal drift of a drill bit | US515199 | 1983-07-20 | US4508182A | 1985-04-02 | Edward O. Anders |
| A method of and apparatus for controlling the azimuthal drift of a drill bit in an inclined well bore is described. The method comprises prestressing a drill collar member in torsion to adjust the angle in the horizontal plant that the drill bit makes with the longitudinal axis of the well bore when the drill collar is subjected to the gravitational, axial, and torsional forces of the drilling operation. The drill collar includes an inner tubular member and an outer tubular member. The two are held against relative rotation at one end. The desired torque is placed in the members by rotating the other ends of the members relative to each other in the desired direction. A splined member engages grooves in the inner and outer surfaces of the members to hold the members in their prestressed state. | ||||||
| 185 | Tubular drill string member with contoured circumferential surface | US419881 | 1982-09-20 | US4465146A | 1984-08-14 | John L. Fitch |
| A tubular member for a drill string used in the rotary drilling of deviated boreholes, which includes an outer circumferential surface which is contoured and adapted to engage the wall of the borehole so as to produce a longitudinally downward force on the drill bit upon rotation of the drill string. The tubular member may be a drill collar or section of drill pipe, wherein the contoured surface is constituted of a helical thread of a pitch which will impart a longitudinal force towards the drill bit upon rotation of the tubular member. | ||||||
| 186 | Intermediate weight drill string member | US210479 | 1980-11-26 | US4460202A | 1984-07-17 | Glenn G. Chance; William Kovensky |
| An improved intermediate weight member to be put in a drill string between the collars and the drill pipe which has a spiraled outer surface, and which is so configured as to provide a uniform bending moment of inertia over its length including the slip area. | ||||||
| 187 | Insulated drill collar gap sub assembly for a toroidal coupled telemetry system | US240264 | 1981-03-04 | US4348672A | 1982-09-07 | Gregory C. Givler |
| An insulated drill collar gap sub for a toroidal coupled telemetry system comprising a first annular sub member (100) operable to be connected at one end to a drill collar and a second annular sub member (104) operable to be connected at the other end to the drill collar. The first and second annular sub members have longitudinally extending interconnecting structural members (106, 118) operable to structurally interfere. The interconnecting structural members are dimensioned to form a continuous gap (116) between mutually opposing surfaces and a dielectric material (118) fills the gap to electrically isolate the first annular sub member (100) from the second annular sub member (108). A bearing member (124) is positioned between the first annular member and the second annular member but is insulated from at least one of said annular members to facilitate the formation of a drill collar of structural and electrical integrity. | ||||||
| 188 | Drill collar with thread connections | US43314274 | 1974-01-14 | US3923324A | 1975-12-02 | CRUICKSHANK JAMES R; JURGENS RAINER |
| Drill collar for a rotary drill string, including a threadless drill collar body, parts or connections, such as a sub having pin threads or a sub having box threads, being frictionally mounted by means of a shrink-fit on opposite ends of the body, the combination of parts enabling drill collars to remain at a preselected, constant length by replacing a worn thread connection or sub with a new one, all of such connections or subs having the same length.
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| 189 | Drilling stabilizer and method | US52105574 | 1974-11-05 | US3916998A | 1975-11-04 | BASS JR SAMUEL L; SCHELLSTEDE HERMAN J |
| A rigid stabilizer sleeve having outwardly extending ribs is slidably received over a collar, internal clamp rings operate to clamp the stabilizer at any desired position on the drill collar; another aspect resides in a structure and method of operation enabling use of a washover tool upon seizure of the string by providing jaw clutch means on opposite ends of each stabilizer and an upwardly facing jaw clutch immediately above the bit so that the stabilizers can be cut by a washover tool to release the clamping means then moved down the string to the next lower stabilizer for engagement with the upper jaw clutch thereon to seize the released stabilizer and enable subsequent cutting through its remaining uncut length and similarly through the length of the other stabilizers until all stabilizers above the point at which the string has been seized have been cut through by the washover tool to enable the tool to clear the seized portion of the string.
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| 190 | Intermediate drill stem | US3784238D | 1971-05-17 | US3784238A | 1974-01-08 | CHANCE G; CREWS S; WILSON C |
| Intermediate drill stem includes an alloy steel body of smaller inner diameter than usual for drill pipe machined to drill pipe outer diameter except having one or more integral protectors of larger outer diameter at intervals along its length and except further having integral transition portions of somewhat larger than drill pipe outer diameter near its ends and portions of elevator shoulders at the ends, the ends also being built up externally and internally with weld metal to match the wall thickness of extra long alloy steel connector members rod welded to the ends of the body. Typically the body of the intermediate drill stem is made from a worn out drill collar and if the ends of the collar are not too far gone the original integral drill collar connectors can be used. New material may be used for the body and if anticipated loading is not too great carbon steel could be used instead of alloy steel. In any case, the integral protectors could be omitted.
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| 191 | Intermediate drill stem | US3773359D | 1971-06-24 | US3773359A | 1973-11-20 | CHANCE G; CREWS S; WILSON C |
| Intermediate drill stem includes an alloy steel body of smaller inner diameter than usual for drill pipe and machined to drill pipe outer diameter except having one or more integral protectors of larger outer diameter at intervals along its length and except further having integral transition portions of somewhat larger than drill pipe outer diameter near its ends and portions of elevator shoulders at the ends, the ends also being built up externally and internally with weld metal to match the wall thickness of extra long alloy steel connector members rod welded to the ends of the body. Typically the body of the intermediate drill stem is made from a worn out drill collar. If the ends of the old collar are not too far gone the original integral drill collar connectors can be used instead of welding on connector members. New material may be used for the body and if anticipated loading is not too great carbon steel could be used instead of alloy steel. In any case, the integral protectors could be omitted. However, if a radially integral protector is used, intermediate stem can be made from a plurality of lengths of material welded together at the thick wall area of the protector.
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| 192 | Travelling drill bit | US3729057D | 1971-11-30 | US3729057A | 1973-04-24 | WERNER G |
| Drill bit and drill collar assemblies for use with a drill string which assemblies can be moved up and down the drill string without the need of removing the drill string from the well hole. The drill collar assembly also is shaped, and includes elements, which together serve to prevent excessive lateral shifting of the drill string, thereby assuring the drilling of a straight well hole. This invention relates to improved drill bit and drill collar assemblies for use in combination with a drill string used in the drilling of wells, such as oil wells, for example.
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| 193 | Flexible drill collar | US3446297D | 1966-07-15 | US3446297A | 1969-05-27 | CULLEN ROY H; ELLIOTT CHARLES H; AKER JIMMIE R; BURKE WILLIAM E |
| 194 | Dovetailed drill collar | US49002565 | 1965-09-24 | US3385130A | 1968-05-28 | BOICE ELVIN G |
| 195 | Drill collar | US47812365 | 1965-08-09 | US3383946A | 1968-05-21 | JUSTMAN DAN B |
| 196 | Drill collar | US58369866 | 1966-10-03 | US3382938A | 1968-05-14 | WILLIAMS JR EDWARD B |
| 197 | Drill collar | US46935865 | 1965-05-12 | US3261414A | 1966-07-19 | BOICE ELVIN G |
| 198 | Well apparatus | US34036364 | 1964-01-27 | US3250578A | 1966-05-10 | LUBBES JACK W |
| 199 | Drill collar | US29827763 | 1963-07-29 | US3237427A | 1966-03-01 | SCARBOROUGH WILLIAM E |
| 200 | Spiral drill collar and method of manufacture thereof | US31759363 | 1963-10-21 | US3205733A | 1965-09-14 | SHIPLET LEVI F |
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