EP0265341A2 - Packer gonflable de puits - Google Patents
Packer gonflable de puits Download PDFInfo
- Publication number
- EP0265341A2 EP0265341A2 EP87402350A EP87402350A EP0265341A2 EP 0265341 A2 EP0265341 A2 EP 0265341A2 EP 87402350 A EP87402350 A EP 87402350A EP 87402350 A EP87402350 A EP 87402350A EP 0265341 A2 EP0265341 A2 EP 0265341A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- coupling
- packer
- packer element
- coupling member
- wedge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000010168 coupling process Methods 0.000 claims abstract description 101
- 238000005859 coupling reaction Methods 0.000 claims abstract description 101
- 230000008878 coupling Effects 0.000 claims abstract description 78
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 53
- 238000001125 extrusion Methods 0.000 claims abstract description 8
- 230000000712 assembly Effects 0.000 claims description 9
- 238000000429 assembly Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims 2
- 229920001971 elastomer Polymers 0.000 abstract description 7
- 239000000806 elastomer Substances 0.000 abstract description 6
- 239000012530 fluid Substances 0.000 description 6
- 230000001681 protective effect Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 230000002079 cooperative effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/124—Units with longitudinally-spaced plugs for isolating the intermediate space
- E21B33/1243—Units with longitudinally-spaced plugs for isolating the intermediate space with inflatable sleeves
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/127—Packers; Plugs with inflatable sleeve
- E21B33/1277—Packers; Plugs with inflatable sleeve characterised by the construction or fixation of the sleeve
Definitions
- a new and improved well bore packer having an inflatable packer element that is comprised of inner and outer elastomeric plies coaxially arranged on and bonded to an intermediate sleeve formed of multiple plies of reinforcing strands.
- inner and outer coupling members are coaxially disposed around the mandrel at each end of the packer element so as to define convergent annular spaces into which the free ends of the strands are disposed and cooperatively secured.
- the design parameters for the reinforcing sleeve 25 are governed by the maximum expected differential pressure to be imposed on the element 22 as well as the maximum expanded diameter of the packer element. Since the inner sheath 26 has only a limited strength, the principal strength of the packer element 22 is provided by the reinforcing sleeve 25 which is formed of two or more plies, as at 27-30, of closely-spaced stranded wires or cables which, in the depicted exemplary packer element, are about 0.125 inch in diameter and are cooperatively arranged between the outer elastomeric ply 24 and the protective sheath 26.
- the several plies 27-30 are, preferably, respectively laid in pairs in alternate right-hand and left-hand directions at bias angles which successively increase from about 14 degrees for the innermost ply to about 16 degrees for the outermost ply. This progressive angling provides for even distribution of the load across all the plies at expansion.
- the protective sheath 26, the several reinforcing plies 27-30 and the elastomeric plies 23 and 24 are vulcanized together in a suitable fashion to form a substantially unitary packer element 22 with the free ends of the stranded wires of the several reinforcing plies 27-30 extending beyond the opposite ends of the packer element.
- an inner coupling member such as described member 32 or 104, having an outwardly deformable thin-walled skirt end portion to prevent extrusion of an inner elastomeric ply into a low pressure gap left during packer inflation as a reinforcing sleeve is forced away from the outer surface of the inner coupling member.
- Such an inner coupling member serves to reduce the risk of failure at a critical point in packer construction and can thereby contribute significantly to the ability of an inflatable packer to withstand large differential pressures.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Piles And Underground Anchors (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US92262886A | 1986-10-24 | 1986-10-24 | |
US922628 | 1986-10-24 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0265341A2 true EP0265341A2 (fr) | 1988-04-27 |
EP0265341A3 EP0265341A3 (en) | 1989-11-15 |
EP0265341B1 EP0265341B1 (fr) | 1994-06-15 |
Family
ID=25447352
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP87402350A Expired - Lifetime EP0265341B1 (fr) | 1986-10-24 | 1987-10-21 | Packer gonflable de puits |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0265341B1 (fr) |
CA (1) | CA1276547C (fr) |
DE (1) | DE3750069D1 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9617802B2 (en) | 2013-09-12 | 2017-04-11 | Saudi Arabian Oil Company | Expandable tool having helical geometry |
EP2545246B1 (fr) * | 2010-03-11 | 2017-06-07 | Tendeka B.V. | Ensemble joint d'étanchéité et procédé de formation d'un ensemble joint d'étanchéité |
US10100600B2 (en) | 2015-02-10 | 2018-10-16 | Saudi Arabian Oil Company | Expandable tools using segmented cylindrical sections |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3524503A (en) * | 1968-09-05 | 1970-08-18 | Halliburton Co | Cementing tool with inflatable packer and method of cementing |
US3529667A (en) * | 1969-01-10 | 1970-09-22 | Lynes Inc | Inflatable,permanently set,drillable element |
US3542127A (en) * | 1968-05-13 | 1970-11-24 | Lynes Inc | Reinforced inflatable packer with expansible back-up skirts for end portions |
US4253676A (en) * | 1979-06-15 | 1981-03-03 | Halliburton Company | Inflatable packer element with integral support means |
FR2517017A1 (fr) * | 1981-11-20 | 1983-05-27 | Caoutchouc Manuf Plastique | |
US4406461A (en) * | 1982-03-12 | 1983-09-27 | Schlumberger Technology Corporation | Inflatable well packer apparatus reinforced with tire cording |
FR2582077A2 (fr) * | 1985-05-14 | 1986-11-21 | Caoutchouc Manuf Plastique | Perfectionnement a un dispositif a tuyau dilatable |
-
1987
- 1987-10-21 DE DE3750069T patent/DE3750069D1/de not_active Expired - Lifetime
- 1987-10-21 EP EP87402350A patent/EP0265341B1/fr not_active Expired - Lifetime
- 1987-10-23 CA CA000550057A patent/CA1276547C/fr not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3542127A (en) * | 1968-05-13 | 1970-11-24 | Lynes Inc | Reinforced inflatable packer with expansible back-up skirts for end portions |
US3524503A (en) * | 1968-09-05 | 1970-08-18 | Halliburton Co | Cementing tool with inflatable packer and method of cementing |
US3529667A (en) * | 1969-01-10 | 1970-09-22 | Lynes Inc | Inflatable,permanently set,drillable element |
US4253676A (en) * | 1979-06-15 | 1981-03-03 | Halliburton Company | Inflatable packer element with integral support means |
FR2517017A1 (fr) * | 1981-11-20 | 1983-05-27 | Caoutchouc Manuf Plastique | |
US4406461A (en) * | 1982-03-12 | 1983-09-27 | Schlumberger Technology Corporation | Inflatable well packer apparatus reinforced with tire cording |
FR2582077A2 (fr) * | 1985-05-14 | 1986-11-21 | Caoutchouc Manuf Plastique | Perfectionnement a un dispositif a tuyau dilatable |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2545246B1 (fr) * | 2010-03-11 | 2017-06-07 | Tendeka B.V. | Ensemble joint d'étanchéité et procédé de formation d'un ensemble joint d'étanchéité |
US9617802B2 (en) | 2013-09-12 | 2017-04-11 | Saudi Arabian Oil Company | Expandable tool having helical geometry |
US10100589B2 (en) | 2013-09-12 | 2018-10-16 | Saudi Arabian Oil Company | Expandable tool having helical geometry |
US10100600B2 (en) | 2015-02-10 | 2018-10-16 | Saudi Arabian Oil Company | Expandable tools using segmented cylindrical sections |
Also Published As
Publication number | Publication date |
---|---|
CA1276547C (fr) | 1990-11-20 |
DE3750069D1 (de) | 1994-07-21 |
EP0265341A3 (en) | 1989-11-15 |
EP0265341B1 (fr) | 1994-06-15 |
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