EP0265341A2 - Aufblasbarer Packer für Bohrlöcher - Google Patents

Aufblasbarer Packer für Bohrlöcher Download PDF

Info

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
Application number
EP87402350A
Other languages
English (en)
French (fr)
Other versions
EP0265341A3 (en
EP0265341B1 (de
Inventor
Dinesh R. Patel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schlumberger Technology Corp
Original Assignee
Schlumberger Technology Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Schlumberger Technology Corp filed Critical Schlumberger Technology Corp
Publication of EP0265341A2 publication Critical patent/EP0265341A2/de
Publication of EP0265341A3 publication Critical patent/EP0265341A3/en
Application granted granted Critical
Publication of EP0265341B1 publication Critical patent/EP0265341B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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)
EP87402350A 1986-10-24 1987-10-21 Aufblasbarer Packer für Bohrlöcher Expired - Lifetime EP0265341B1 (de)

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 (de) 1988-04-27
EP0265341A3 EP0265341A3 (en) 1989-11-15
EP0265341B1 EP0265341B1 (de) 1994-06-15

Family

ID=25447352

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87402350A Expired - Lifetime EP0265341B1 (de) 1986-10-24 1987-10-21 Aufblasbarer Packer für Bohrlöcher

Country Status (3)

Country Link
EP (1) EP0265341B1 (de)
CA (1) CA1276547C (de)
DE (1) DE3750069D1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
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 (de) * 2010-03-11 2017-06-07 Tendeka B.V. Dichtungsanordnung und verfahren zur formung einer dichtungsanordnung
US10100600B2 (en) 2015-02-10 2018-10-16 Saudi Arabian Oil Company Expandable tools using segmented cylindrical sections
CN120906501A (zh) * 2025-10-11 2025-11-07 广汉川油井控装备有限公司 一种双挡圈封隔器

Family Cites Families (7)

* Cited by examiner, † Cited by third party
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
FR2517017B1 (de) * 1981-11-20 1986-09-19 Caoutchouc Manuf Plastique
US4406461A (en) * 1982-03-12 1983-09-27 Schlumberger Technology Corporation Inflatable well packer apparatus reinforced with tire cording
FR2582077B2 (fr) * 1985-05-14 1987-12-24 Caoutchouc Manuf Plastique Perfectionnement a un dispositif a tuyau dilatable

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2545246B1 (de) * 2010-03-11 2017-06-07 Tendeka B.V. Dichtungsanordnung und verfahren zur formung einer dichtungsanordnung
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
CN120906501A (zh) * 2025-10-11 2025-11-07 广汉川油井控装备有限公司 一种双挡圈封隔器

Also Published As

Publication number Publication date
CA1276547C (en) 1990-11-20
DE3750069D1 (de) 1994-07-21
EP0265341A3 (en) 1989-11-15
EP0265341B1 (de) 1994-06-15

Similar Documents

Publication Publication Date Title
US4886117A (en) Inflatable well packers
US4424861A (en) Inflatable anchor element and packer employing same
US4768590A (en) Inflatable well packer
US6752205B2 (en) Inflatable packer with prestressed bladder
CA1221027A (en) Inflatable packer element
US4832120A (en) Inflatable tool for a subterranean well
US2778432A (en) Packer braid reinforcing and retainer
US4895185A (en) Expandable hose device
US4253676A (en) Inflatable packer element with integral support means
US7363970B2 (en) Expandable packer
US5143154A (en) Inflatable packing element
US4951747A (en) Inflatable tool
US4406461A (en) Inflatable well packer apparatus reinforced with tire cording
GB2331537A (en) Compact retrievable well packer
CA2057219C (en) Packoff nipple
AU656421B2 (en) Improved reinforced inflatable packer
WO2011060495A1 (en) Sliding seal for an inflatable packer
EP0898048B1 (de) Abhängeelement für Bohrlöcher
US12392227B2 (en) System and methodology for utilizing anchoring element with expandable tubular
EP0528328A2 (de) Bohrlochpacker
EP0265341B1 (de) Aufblasbarer Packer für Bohrlöcher
US5236201A (en) Reinforcement structure for inflatable downhole packers
US5109926A (en) Wellbore packer with shearable anti-rotation locking member
AU658924B2 (en) Improved inflatable packer
US6007067A (en) Multi-operational expansion gasket

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB NL

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE FR GB NL

17P Request for examination filed

Effective date: 19900509

17Q First examination report despatched

Effective date: 19910701

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB NL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19940615

REF Corresponds to:

Ref document number: 3750069

Country of ref document: DE

Date of ref document: 19940721

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19940916

ET Fr: translation filed
NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20011005

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20011029

Year of fee payment: 15

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021021

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20021021

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030630

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST