IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
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출원번호 |
US-0160216
(2002-05-31)
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발명자
/ 주소 |
- McGregor, Ronald W.
- Crow, Robert
- Hejl, David A.
- Gibson, Ronald A.
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출원인 / 주소 |
- Halliburton Energy Services, Inc.
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
26 인용 특허 :
58 |
초록
▼
An apparatus and method for gravel packing an interval of a wellbore comprises an outer tubular ( 112 ), which forms a first annulus with the wellbore, and an sand control screen ( 118 ) disposed within the outer tubular ( 112 ) forming a second annulus therebetween. Within the second annulus is an
An apparatus and method for gravel packing an interval of a wellbore comprises an outer tubular ( 112 ), which forms a first annulus with the wellbore, and an sand control screen ( 118 ) disposed within the outer tubular ( 112 ) forming a second annulus therebetween. Within the second annulus is an axially extending production pathway ( 146 ) and an axially extending slurry passageway ( 144 ), which is defined between a sheet member ( 140 ) positioned on the sand control screen ( 118 ) and a channel ( 132 ). The outer tubular ( 112 ) has outlets ( 116 ) that are substantially aligned with outlets ( 142 ) of the channel ( 132 ). When a fluid slurry containing gravel is injected through the slurry passageway ( 144 ), the fluid slurry exits through the outlets ( 116, 142 ) leaving gravel in the first annulus, thereby gravel packing the interval.
대표청구항
▼
1. An apparatus for gravel packing an interval of a wellbore, the apparatus comprising:an outer tubular having a plurality of production openings that allow the flow of production fluids therethrough and a plurality of outlets the allow the flow of a fluid slurry containing gravel therethrough;a san
1. An apparatus for gravel packing an interval of a wellbore, the apparatus comprising:an outer tubular having a plurality of production openings that allow the flow of production fluids therethrough and a plurality of outlets the allow the flow of a fluid slurry containing gravel therethrough;a sand control screen disposed within the outer tubular to form an annulus therebetween, the sand control screen including a perforated outer tubular wrapper that prevents the flow of particulate material of a predetermined size therethrough but allows the flow of production fluids therethrough;a sheet member positioned on the sand control screen such that the sheet member extends at least substantially along the length of the sand control screen and partially around the circumference of the sand control screen; anda channel having a plurality of outlets disposed within the annulus and substantially circumferentially aligned with the sheet member forming a slurry passageway therewith, the outlets of the channel substantially aligned with the outlets of the outer tubular. 2. The apparatus as recited in claim 1 wherein the channel further comprises a web and a pair of oppositely disposed sides. 3. The apparatus as recited in claim 1 wherein the channel is sealably attached to the sand control screen. 4. The apparatus as recited in claim 1 wherein the sand control screen further comprises a filter medium comprising a plurality of sintered layers of wire mesh positioned between a perforated base pipe and the interior of the perforated tubular wrapper. 5. The apparatus as recited in claim 1 further comprising a production pathway formed within a portion of the annulus not circumferentially aligned the channel. 6. An apparatus for gravel packing an interval of a wellbore, the apparatus comprising an outer tubular forming a first annulus with the wellbore and a sand control screen disposed within the outer tubular forming a second annulus therebetween, the second annulus including an axially extending production pathway and an axially extending slurry passageway defined between a sheet member positioned on the sand control screen and a channel, the slurry passageway being in fluid isolation from the production pathway such that when a fluid slurry containing gravel is injected through the slurry passageway, the fluid slurry exits the apparatus through outlets of the channel and outlets of the outer tubular leaving a first portion of the gravel in the first annulus then enters openings in the outer tubular leaving a second portion of the gravel in the production pathway and such that when formation fluids are produced, the formation fluids enter the production pathway through the openings in the outer tubular and exit the production pathway through the sand control screen passing through the first and second portions of the gravel. 7. The apparatus as recited in claim 6 wherein the channel further comprises a web and a pair of oppositely disposed sides. 8. The apparatus as recited in claim 6 wherein the channel is sealably attached to the sand control screen. 9. The apparatus as recited in claim 6 wherein the sand control screen further comprises an outer wrapper. 10. The apparatus as recited in claim 9 wherein the outer wrapper further comprises a wire wrap. 11. The apparatus as recited in claim 9 wherein the outer wrapper further comprises a perforated tubular wrapper. 12. The apparatus as recited in claim 11 wherein the sand control screen further comprises a filter medium comprising a plurality of sintered layers of wire mesh positioned between a perforated base pipe and the interior of the perforated tubular wrapper. 13. An apparatus for gravel packing an interval of a wellbore, the apparatus comprising:an outer tubular having a plurality of production openings that allow the flow of production fluids therethrough and a plurality of outlets the allow the flow of a fluid slurry containing gravel therethrough;a sand control screen disposed w ithin the outer tubular to form an annulus therebetween, the sand control screen preventing the flow of particulate material of a predetermined size therethrough but allowing the flow of production fluids therethrough, the sand control screen including a perforated base pipe and an outer perforated tubular wrapper having a plurality of sintered layers of wire mesh positioned therebetween;a sheet member positioned on the sand control screen such that the sheet member extends at least substantially along the length of the sand control screen and partially around the circumference of the sand control screen; anda channel having a plurality of outlets disposed within the annulus and substantially circumferentially aligned with the sheet member forming a slurry passageway therewith, the outlets of the channel substantially aligned with the outlets of the outer tubular. 14. The apparatus as recited in claim 13 wherein the channel further comprises a web and a pair of oppositely disposed sides. 15. The apparatus as recited in claim 13 wherein the channel is sealably attached to the sand control screen. 16. An apparatus for gravel packing an interval of a wellbore, the apparatus comprising:a sand control screen that prevents the flow of particulate material of a predetermined size therethrough but allowing the flow of production fluids therethrough; andan outer tubular disposed around the sand control forming a first annulus therewith and a second annulus with the wellbore, the first annulus including a production pathway and a slurry passageway, the slurry passageway defined between a sheet member positioned on the sand control screen and a channel, wherein when the apparatus is in an operable position, the second annulus serves as a primary path for delivery of a fluid slurry, the production pathway serves as a secondary path for delivery of the fluid slurry when the primary path becomes blocked and the slurry passageway serves as a tertiary path for delivery of the fluid slurry when the primary and secondary paths become blocked. 17. A method for gravel packing an interval of a wellbore, the method comprising the steps of:traversing a formation with the wellbore;locating a gravel packing apparatus within the wellbore proximate the formation forming a first annulus with the wellbore, the gravel packing apparatus including an outer tubular positioned around a sand control screen forming a second annulus therebetween, the sand control screen including a perforated tubular outer wrapper, the second annulus including an axially extending production pathway and an axially extending slurry passageway defined between a sheet member positioned on the sand control screen and a channel, the slurry passageway being in fluid isolation from the production pathway;injecting a fluid slurry containing gravel through the slurry passageway such that the fluid slurry exits the slurry passageway through outlets in the channel, which are substantially aligned with outlets in the outer tubular, leaving at least a portion of the gravel in the first annulus; andterminating the injecting. 18. The method as recited in claim 17 further comprising the step of sealably attaching the channel to the sand control screen. 19. The method as recited in claim 17 wherein the step of including an outer wrapper on the sand control screen further comprises including a filter medium comprising a plurality of sintered layers of wire mesh positioned between a perforated base pipe and the interior of the perforated tubular wrapper. 20. The method as recited in claim 17 further comprising the step of defining a production pathway within a portion of the second annulus not circumferentially aligned the channel. 21. A method for gravel packing an interval of a wellbore, the method comprising the steps of:traversing a formation with the wellbore;locating a gravel packing apparatus within the wellbore proximate the formation forming a first annulus with the wellbore, the gravel pa cking apparatus including an outer tubular positioned around a sand control screen forming a second annulus therebetween, the second annulus including an axially extending production pathway and an axially extending slurry passageway defined between a sheet member positioned on the sand control screen and a channel, the slurry passageway being in fluid isolation from the production pathway;injecting a fluid slurry containing gravel through the slurry passageway such that the fluid slurry exits the slurry passageway through outlets in the channel, which are substantially aligned with outlets in the outer tubular, into the first annulus;depositing a first portion of the gravel in the first annulus;depositing a second portion of the gravel in the production pathway by returning a portion of the fluid slurry through openings in the outer tubular; andterminating the injecting. 22. The method as recited in claim 21 further comprising the step of sealably attaching the channel to the sand control screen. 23. The method as recited in claim 21 wherein the step of locating a gravel packing apparatus within the wellbore further comprises including an outer wrapper on the sand control screen. 24. The method as recited in claim 23 wherein the step of including an outer wrapper on the sand control screen further comprises including an outer wrapper comprises a wire wrap. 25. The method as recited in claim 23 wherein the step of including an outer wrapper on the sand control screen further comprises including an outer wrapper comprises a perforated tubular wrapper. 26. The method as recited in claim 25 wherein the step of including an outer wrapper on the sand control screen further comprises including a filter medium comprising a plurality of sintered layers of wire mesh positioned between a perforated base pipe and the interior of the perforated tubular wrapper. 27. The method as recited in claim 21 further comprising the step of defining a production pathway within a portion of the second annulus not circumferentially aligned the channel. 28. A method for gravel packing an interval of a wellbore, the method comprising the steps of:traversing a formation with the wellbore;locating a gravel packing apparatus within the wellbore proximate the formation forming a first annulus with the wellbore, the gravel packing apparatus including an outer tubular positioned around a sand control screen forming a second annulus therebetween, the second annulus including an axially extending production pathway and an axially extending slurry passageway defined between a sheet member positioned on the sand control screen and a channel, the slurry passageway being in fluid isolation from the production pathway;injecting a fluid slurry containing gravel into a primary path defined by the first annulus;diverting the fluid slurry containing gravel into a secondary path defined by the production pathway if the primary path becomes blocked;diverting the fluid slurry containing gravel into a tertiary path defined by the slurry passageway if the primary and secondary paths become blocked; andterminating the injecting.
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