IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0809482
(2001-03-15)
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발명자
/ 주소 |
- Evans, Michael
- Penno, Andrew
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출원인 / 주소 |
- Halliburton Energy Services, Inc.
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대리인 / 주소 |
Conley, Rose & Tayon, P.C.
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인용정보 |
피인용 횟수 :
34 인용 특허 :
1 |
초록
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The present invention relates generally to the treating of wells, and more particularly to a method and device that are capable of detecting the position of a fluid interface so that a well treatment can be placed with greater along hole depth precision in a given hydrocarbon producing well than pre
The present invention relates generally to the treating of wells, and more particularly to a method and device that are capable of detecting the position of a fluid interface so that a well treatment can be placed with greater along hole depth precision in a given hydrocarbon producing well than previously. More particularly, an embodiment of the invention includes a method for accurately placing a well treatment fluid in a well, comprising: pumping a first fluid into a first part of the well until an interface is formed between the first fluid and a second fluid; extracting information regarding at least one fluid property of the first and second fluids with first and second to sensors positioned in the first and second fluids respectively; and exchanging information between the first and second sensors and a telemetry unit. The invention also includes a downhole tool for positioning a fluid interface in a well bore, comprising: first and second sensors, the spacers being spaced apart such that they span the fluid interface; the first sensor measures a first fluid property and the second sensor measures a second fluid property; a first fluid port on the same side of the first sensor as the spacer and in fluid communication with a first fluid flow line; and a second fluid port on the opposite side of the first sensor as the spacer and in fluid communication with a second fluid flow line.
대표청구항
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The present invention relates generally to the treating of wells, and more particularly to a method and device that are capable of detecting the position of a fluid interface so that a well treatment can be placed with greater along hole depth precision in a given hydrocarbon producing well than pre
The present invention relates generally to the treating of wells, and more particularly to a method and device that are capable of detecting the position of a fluid interface so that a well treatment can be placed with greater along hole depth precision in a given hydrocarbon producing well than previously. More particularly, an embodiment of the invention includes a method for accurately placing a well treatment fluid in a well, comprising: pumping a first fluid into a first part of the well until an interface is formed between the first fluid and a second fluid; extracting information regarding at least one fluid property of the first and second fluids with first and second to sensors positioned in the first and second fluids respectively; and exchanging information between the first and second sensors and a telemetry unit. The invention also includes a downhole tool for positioning a fluid interface in a well bore, comprising: first and second sensors, the spacers being spaced apart such that they span the fluid interface; the first sensor measures a first fluid property and the second sensor measures a second fluid property; a first fluid port on the same side of the first sensor as the spacer and in fluid communication with a first fluid flow line; and a second fluid port on the opposite side of the first sensor as the spacer and in fluid communication with a second fluid flow line. said plate diminishes from an area closer to the center of said plate towards an area more remote from said center. 3. The reactor of claim 1, further comprising an open channel arrangement around said plate communicating with said distribution chamber and said plasma discharge space. 4. The reactor of claim 1, wherein at least a portion of said gas feed openings through said plate cooperates with removable flow-resistance coefficient-increasing inserts. 5. The reactor of claim 1, wherein at least certain of said gas feed openings arranged closer to the periphery of said plate have smaller diameters than said gas feed openings located more distant from said periphery of said plate. 6. The reactor of claim 3, wherein at least a portion of said gas feed openings through said plate cooperates with removable flow-resistance coefficient-increasing inserts. 7. The reactor of claim 3, wherein at least certain of said gas feed openings arranged closer to the periphery of said plate have smaller diameters than said gas feed openings located more distant from said periphery of said plate. 8. A plasma reactor, comprising a reactor vessel and a pair of electrodes arranged in said reactor vessel and having spaced apart and oppositely disposed metallic surfaces defining therebetween a plasma discharge space, at least one of said metallic surfaces being the surface of a metallic plate having a multitude of gas feed openings therethrough and through said metallic surface towards said discharge space and from a distribution chamber extending along said plate, said distribution chamber having opposite said discharge space, a wall distant from said plate and comprising a gas inlet arrangement with a multitude of gas inlet openings distributed along said wall and connected to at least one gas feed line to the reactor, at least a part of said gas feed openings through said plate cooperating with removable flow-resistance increasing inserts. 9. The plasma reactor of claim 8, wherein a ratio of opening area of said openings in said plate per unit of plate area diminishes from an area closer to a center of said plate to an area more remote from said center. 10. The reactor of claim 8, further comprising a gas flow channel arrangement around said plate, and communicating with said distribution chamber and said plasma discharge space. 11. The reactor of claim 8, wherein at least some of said gas feed openings arranged closer to the periphery of said plate have smaller diameters than said gas feed openings located more distant from said periphery of said plate. 12. The reactor of claim 11, wherein said at least certain of said gas feed openings cooperates with removable flow-resistance increasing inserts. 13. The reactor of claim 9, wherein at least certain of said gas feed openings arranged closer to the periphery of said plate and have smaller diameters than said gas feed openings located more distant from the periphery of said plate. 14. A plasma reactor, comprising a reactor vessel and a pair of electrodes arranged in said reactor vessel and comprising spaced apart and oppositely disposed metallic surfaces defining therebetween a plasma discharge space, at least one of said metallic surfaces being the surface of a plate having a multitude of gas feed openings therethrough and through said metallic surface towards said discharge space and from a distribution chamber extending along said plate opposite said discharge space, said distribution chamber having a wall with a metallic surface opposite and distant from said plate, said metallic surface of said wall being mutually electrically isolated from said metallic surface of said metallic plate and further comprising a gas inlet arrangement with a multitude of gas inlet openings distributed along said wall and connected to at least one gas feed line to the reactor. 15. The reactor of claim 14, wherein an electrical feed is operatively arranged relative to one of said metallic surfaces bordering said d istribution chamber. 16. The reactor of claim 14, wherein a ratio of opening area of said openings through said plate per unit of area of said plate area diminishes from an area closer to a center of said plate towards an area more remote from said center. 17. The reactor of claim 14, further comprising an open channel arrangement around said plate and communicating with said distribution chamber and said plasma discharge space. 18. The reactor of claim 14, wherein at least a portion of said gas feed openings through said plate cooperates with removable flow-resistance increasing inserts. 19. The reactor of claim 14, wherein at least certain of said gas feed openings arranged closer to the periphery of the plate have smaller diameters than said gas feed openings located more distant from the periphery of said plate. 20. The reactor of claim 19, wherein said at least certain of said gas feed openings cooperate with removable flow-resistance increasing inserts. ; US-5104037, 19920400, Karg et al., 236/051; US-5951900, 19990900, Smrke, 219/497 g to claim 1, characterized in that the body and the bonnet do not have a plain but an L-shaped division to ease the insertion and to fix the beverage containers at their flanges while shaking the casing. 27. The device according to claim 1, characterized in that the pivoting of the casing on its stand is used to improve the dispersion of temperature inside the beverage container. e and a receptacle, said second plurality of projections includes a second arcuate tongue and a second receptacle, said first receptacle receiving said second tongue and said second receptacle receiving said first tongue. 7. A deadbolt assembly according to claim 1 wherein said shells are arranged in telescoping relationship. 8. A deadbolt assembly according to claim 1 wherein said first shell includes a first ring and said second shell includes a second ring, said first ring and said second ring encircling said deadbolt actuating mechanism. 9. A deadbolt assembly according to claim 1 wherein said first lip matingly engages a first recess defined by said first housing member, said second lip matingly engages a second recess defined by said second housing. 10. A deadbolt assembly for a door comprising: (a) first and second housing members adapted to be disposed in proximity with an outside face and an inside face, respectively of a door each one of said first and second housing members defining a recess; (b) a deadbolt which is reciprocable between an extended position and a retracted position, the deadbolt in said extended position extending past an edge of said door to prevent opening of the door, the deadbolt in said retracted position being disposed wholly within said door; (c) a deadbolt actuating mechanism disposed between said first and second housing members for reciprocating said deadbolt; and (d) first and second oppositely oriented generally cylindrical shells surrounding said deadbolt actuating mechanism to prevent tampering with said mechanism, each of said shells having a circumferentially extending first end which encircles the deadbolt actuating mechanism and is in proximity with one of said housing members, and a protective structure extending axially toward the other housing members, the direction in which said protective structure extends being transverse to the direction of movement of said deadbolt, the configuration of said protective structure being such as to afford an opening to permit linking of said deadbolt and said deadbolt actuating mechanism so as to permit movement of the deadbolt without interference while tampering with the deadbolt actuating mechanism each of said shells having a lip extending axially from said first end, and said lips being received in recesses defined by said first and second housings, respectively.
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