| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 281 | Well pipe connector | US3420303D | 1967-12-13 | US3420303A | 1969-01-07 | STEARNS ROBERT EDWARD |
| 282 | Anti-freeze siphon for over the top pump delivery | US27139663 | 1963-04-08 | US3261403A | 1966-07-19 | JC NEWMAN |
| 283 | Pitless well construction | US37344064 | 1964-06-08 | US3239007A | 1966-03-08 | GORDON BAKER JOHN |
| 284 | Well pump adapter | US65043757 | 1957-04-03 | US2960166A | 1960-11-15 | EDWARD HAYDIN; REUTER LUKE N |
| 285 | Water well cap | US769248 | 1948-02-11 | US2562946A | 1951-08-07 | READ DONALD G |
| 286 | Well pump installation | US74138347 | 1947-04-14 | US2529062A | 1950-11-07 | WILLIAMS CLIFFORD C |
| 287 | Treatment apparatus | US46228530 | 1930-06-19 | US1923098A | 1933-08-22 | KNIGHT JAMES B; RAINEY ALBERT J |
| 288 | SYSTEM AND METHOD FOR MANAGED PRESSURE WELLBORE STRENGTHENING | PCT/US2015024891 | 2015-04-08 | WO2015164078A3 | 2015-12-17 | KARIMI MOJTABA; HANNEGAN DON; SHAHRI MOJTABA P; MUTLU OVUNC |
| Systems and methods for wellbore strengthening are disclosed. An effective way to strengthen a wellbore and prevent future fractures during drilling operations is to induce fractures having a desired fracture width profile and fracture length. Surface back pressure can be used to accurately induce such fractures. The induced fractures which are then sealed can increase fracture gradient of the wellbore thus mitigating future fractures. | ||||||
| 289 | DRILLING METHOD FOR DRILLING A SUBTERRANEAN BOREHOLE | PCT/GB2013052526 | 2013-09-27 | WO2014049369A3 | 2015-04-09 | LEUCHTENBERG CHRISTIAN; SAVAGE PAT |
| A method of drilling a subterranean wellbore using a drill string (3) including the steps of estimating or determining a reduced static density of a drilling fluid based on the equivalent circulating density of the drilling fluid in a section of the wellbore, providing a drilling fluid having substantially that reduced static density, introducing the drilling fluid having said reduced static density into the wellbore, and removing the drilling fluid from the wellbore via a return line. | ||||||
| 290 | PRESSURE ACTIVATED DOWN HOLE SYSTEMS AND METHODS | PCT/US2013053552 | 2013-08-05 | WO2014028252A2 | 2014-02-20 | ACOSTA FRANK; BUDLER NICHOLAS F; SZARKA DAVID D |
| Systems and methods for activating a down hole tool in a wellbore. A piston is moveable from a first position to a second position for activating the down hole tool. The piston includes a first side exposed to a first chamber, and a second side exposed to a second chamber. A rupture member has a first side exposed to the first chamber and a second side exposed to a third chamber. The rupture member is configured to rupture when a pressure differential between the first chamber and the third chamber reaches a predetermined threshold value, at which point the rupture member allows fluid communication between the first chamber and the third chamber. When the rupture member is intact, the piston is in the first position, and when the rupture member ruptures, the piston moves to the second position and activates the down hole tool. | ||||||
| 291 | SUBSEA WELLHEAD WITH SEGMENTED FATIGUE REDUCTION SLEEVE | PCT/GB2011000403 | 2011-03-22 | WO2011128613A3 | 2012-12-13 | WILLOUGBY DANIEL ALEXANDER |
| A subsea wellhead comprises a generally cylindrical body including a lower extension (9) for forming an annular space (11) for a cement column between the lower extension and an outer conductor. The extension carries a multiplicity of interfitting rings (13b) forming a sleeve which facilitates the flexure of the extension in the presence of the cement column. Each ring may comprise an inner flange for disposition adjacent the outside of the extension and an outer flange for fitment over the inner flange of an adjacent ring. The outer flange may have a radial through-bore. | ||||||
| 292 | INSERTION OF A PACKOFF INTO A WELLHEAD | PCT/GB2011000402 | 2011-03-22 | WO2011128612A3 | 2012-12-13 | WILLOUGBY DANIEL ALEXANDER |
| Apparatus for the insertion of a pack-off (34) into a recess (51) in a bore of a wellhead body comprises an activating sleeve (36) which has a portion (58) disposed for engagement with the pack-off (34) for the movement of the pack-off into the recess and body portions shaped for location on a datum member (52) within the bore. The activating sleeve (36) includes a plurality of apertures (65) circumferentially spaced about the activating sleeve. A running tool (50) which is adapted to move said activating sleeve into engagement with the packoff carries spring-loaded dogs (72) each disposed in one of the apertures (65). Each of a plurality of releasing pins (71) is positioned such that it enters a respective one of the apertures (65) when the activating sleeve (36) has caused the packoff (34) to be located in said recess (52). The entry of the pins (71) into the apertures causes depression of the dogs out of the apertures and allows the consequent release of the activating sleeve (36) from the running tool (50). | ||||||
| 293 | WELL TOOLS WITH ACTUATORS UTILIZING SWELLABLE MATERIALS | PCT/US2007066991 | 2007-04-19 | WO2007124374A2 | 2007-11-01 | HAILEY TRAVIS T; FREYER RUNE |
| Well tools utilizing swellable materials. Actuators for well tools may incorporate swellable materials as force generating devices. A well tool includes an actuator which actuates the well tool in response to contact between a swellable material and a well fluid. A method of actuating a well tool includes the steps of : installing a well tool including an actuator; contacting a swellable material of the actuator with a well fluid; and actuating the well tool in response to the contacting step. A well system includes a well tool with a flow control device and a swellable material. The well tool is operative to control flow through a passage of a tubular string in response to contact between the swellable material and well fluid. | ||||||
| 294 | SYSTEM AND METHOD FOR MANAGED PRESSURE WELLBORE STRENGTHENING | PCT/US2015024891 | 2015-04-08 | WO2015164078A9 | 2016-04-14 | KARIMI MOJTABA; HANNEGAN DON; SHAHRI MOJTABA P; MUTLU OVUNC |
| Systems and methods for wellbore strengthening are disclosed. An effective way to strengthen a wellbore and prevent future fractures during drilling operations is to induce fractures having a desired fracture width profile and fracture length. Surface back pressure can be used to accurately induce such fractures. The induced fractures which are then sealed can increase fracture gradient of the wellbore thus mitigating future fractures. | ||||||
| 295 | PACKER SETTING METHOD USING DISINTEGRATING PLUG | PCT/US2015035057 | 2015-06-10 | WO2015195432A2 | 2015-12-23 | ROTH BRIAN A |
| Some examples of a packet setting method using disintegrating plug can be implemented as a method for setting a packer in a wellbore. A disintegrating plug is installed in a tubing. The disintegrating plug blocks flow through the tubing in response to pressure. A packer is installed above the disintegrating plug in the tubing. The tubing including the packer and the disintegrating plug is run into a wellbore. The packer is positioned at a wellbore location to create an annular area between the packer and the wellbore wall. Downhole pressure is applied in the tubing to set the packer. | ||||||
| 296 | WASHOUT PREVENTER | PCT/EP2013053765 | 2013-02-26 | WO2013127759A3 | 2014-03-27 | BROWN DAVID |
| A device for preventing soil wash out during subsea drilling is shown and described, having means for retaining the soil around a sub sea anchor foundation (7). The means comprises at least, one flap member (7') hingedly (11) mounted adjacent to the lateral walls of a subsea anchor foundation (7) and adapted to receive a well bay insert (8). The flap member (7") is adapted to be in a substantially vertical position during the lowering to the seabed and remain in substantially horizontal position, parallel to the sea bed (2) during drilling operation and acts as a lid or a lock for physically holding the soil in position. | ||||||
| 297 | EXPANDABLE PACKER | PCT/EP2011069132 | 2011-10-31 | WO2012059469A3 | 2012-10-18 | LOVSLETT ROBIN; PEDERSEN DAG; VEDAL TORE |
| An expandable packer tool comprising a mandrel tool body; a sleeve-like packer element mounted on the tool body; and a setting mechanism that is operable to axially compress the packer element such that the diameter of the packer element in its compressed state is increased compared to it uncompressed state. An extrusion barrier can comprise a ring of seal elements disposed around the tool body on either side of the packer element, and arranged to engage the packer element so that expansion of the packer element causes the ring of seal elements to expand in a corresponding manner so as to form an extrusion barrier; wherein the ring of seal elements comprises wedge-shaped seal members comprising first seal members having a inner base wider than an outer surface, and second seal members having an inner base narrower than an outer surface, the ring comprising alternating first and second members, the inclined faces of each wedge-shaped member engaging the corresponding faces of adjacent members. A retraction mechanism for the packer element comprises a cut-out in its inner surface near at least one end; and the setting mechanism comprises an inner mandrel that has an outward projection that engages in the cut-out so that the inner mandrel can exert a pulling force on the packer element. | ||||||
| 298 | MAGNETIC LEAK MANAGEMENT APPARATUS AND METHODS | PCT/US2011055164 | 2011-10-06 | WO2012048157A3 | 2012-07-12 | STAMATAKIS EMANUEL |
| Magnetic means for managing and stopping leaks in metal pipes such as we bores and pipe risers is provided. A magnetic leak arrestor comprises a spool with magnetic collar disposed thereabout. The spool has a tapered end for inserting int a pipe riser. The magnetic collar creates a seal with the pipe riser, which may the be welded in place, if desired. Additionally, a magnet may be positioned proximat a leak in a side wall of a pipe riser to seal the leak. The magnet may be shaped t conform to the shape of the pipe riser, and a seal gasket provided around an edg portion of the magnet. A slurry of magnetically active material may be provide inside the pipe to seal the leak in the side wall or to provide a blockage in the pip riser so that killing fluids may be pumped into the well bore, if desired. | ||||||
| 299 | METHOD AND APPARATUS FOR MEASURING PARTICLE SIZE DISTRIBUTION IN DRILLING FLUID | PCT/US2009061471 | 2009-10-21 | WO2010048276A3 | 2010-07-29 | RONAES EGIL; FREEMAN MICHAEL A |
| A method for measuring particle size distribution in a fluid material, involving inserting a laser beam instrument directly in the fluid flow line, wherein the laser beam instrument focuses a laser beam on a window directly coupled with the fluid flow line, wherein the fluid flow line comprises a fluid having a plurality of particles of different sizes, measuring a diameter of at least one particle in the fluid flow line by reflectance of the at least one particle as the at least one particle passes through the focused laser beam, and determining a duration of reflection of the at least one particle, and obtaining a count of particles in each of a pre-set range group of particle sizes, wherein the count of particles is used to determine particle size distribution in the fluid flow line. | ||||||
| 300 | A SELF ENERGIZING SEAL ELEMENT | PCT/US2008063699 | 2008-05-15 | WO2008147707A4 | 2009-04-16 | CORONADO MARTIN P |
| A self-energizing seal element includes at least one inside interference surface having a dimension smaller than an inside dimension of an annulus in which the seal is to be disposed in use, at least one outside interference surface hav ing a dimension larger than an outside dimension of the annulus in which the seal is to be disposed in use, the at least one inside interference surface being axially offset from the at least one outside interference surface and at least one angular flange extending between the at least one outside interference surface and the at least one inside interference surface and method for sealing. | ||||||
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