GB1518977A - Shaped charge apparatus for the completion of wells and in particular gas wells - Google Patents

Shaped charge apparatus for the completion of wells and in particular gas wells

Info

Publication number
GB1518977A
GB1518977A GB38482/75A GB3848275A GB1518977A GB 1518977 A GB1518977 A GB 1518977A GB 38482/75 A GB38482/75 A GB 38482/75A GB 3848275 A GB3848275 A GB 3848275A GB 1518977 A GB1518977 A GB 1518977A
Authority
GB
United Kingdom
Prior art keywords
bar
holes
wells
shaped charge
shaped
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.)
Expired
Application number
GB38482/75A
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 NV
Original Assignee
Schlumberger NV
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
Priority claimed from FR7431760A external-priority patent/FR2285593A1/en
Priority claimed from FR7431759A external-priority patent/FR2285508A1/en
Application filed by Schlumberger NV filed Critical Schlumberger NV
Publication of GB1518977A publication Critical patent/GB1518977A/en
Expired legal-status Critical Current

Links

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
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/11—Perforators; Permeators
    • E21B43/116—Gun or shaped-charge perforators
    • E21B43/117—Shaped-charge perforators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00—Blasting cartridges, i.e. case and explosive
    • F42B3/08—Blasting cartridges, i.e. case and explosive with cavities in the charge, e.g. hollow-charge blasting cartridges

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (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)
  • General Engineering & Computer Science (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Laminated Bodies (AREA)
  • Air Bags (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Finger-Pressure Massage (AREA)
  • Sewing Machines And Sewing (AREA)
  • Paper (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

1518977 Shaped charge apparatus for piercing wells SCHLUMBERGER Ltd 19 Sept 1975 [20 Sept 1974 (2)] 38482/75 Heading F3A A shaped charge apparatus for completing gas wells comprises a bar 68 having a curved external surface and being formed with a plurality of longitudinally spaced holes 67 for the attachment of shaped charges 60 and a plurality of auxiliary holes (not shown) alternating with the holes 67 to reduce the mass of the bar between the holes 67, whereby, when the charges are fired, the bar is deformed, without breaking, into a succession of small arches based on the auxiliary holes so as to enable the bar to be withdrawn from the well without difficulty. The internal surfaces of the bar are flat and include a slightly smaller angle than the covers 64 of the shaped charges so as to provide an interference fit. The casing 62 for the shaped charges are rotatable relative to the covers 68 and include housing 80 for a detonating cord. In a modification, the housings for the detonating cord are provided by metallic elements 83, Fig, 7, which are attached by dovetail connections to the bases of the shaped charge casings. A number of bars can be connected together (Figs. 3 and 4, not shown).
GB38482/75A 1974-09-20 1975-09-19 Shaped charge apparatus for the completion of wells and in particular gas wells Expired GB1518977A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7431760A FR2285593A1 (en) 1974-09-20 1974-09-20 SUPPORT OF HOLLOW LOADS FOR THE START-UP OF BOREHOES AND IN PARTICULAR GAS WELLS
FR7431759A FR2285508A1 (en) 1974-09-20 1974-09-20 SOCKET LOAD FOR BOREHOLE START-UP

Publications (1)

Publication Number Publication Date
GB1518977A true GB1518977A (en) 1978-07-26

Family

ID=26218526

Family Applications (1)

Application Number Title Priority Date Filing Date
GB38482/75A Expired GB1518977A (en) 1974-09-20 1975-09-19 Shaped charge apparatus for the completion of wells and in particular gas wells

Country Status (13)

Country Link
JP (1) JPS5633557B2 (en)
AR (1) AR209438A1 (en)
BR (1) BR7506078A (en)
DE (1) DE2539947C3 (en)
EG (1) EG11962A (en)
ES (1) ES441057A1 (en)
GB (1) GB1518977A (en)
IN (1) IN143583B (en)
NL (1) NL183664C (en)
NO (1) NO145388C (en)
OA (1) OA05110A (en)
SU (1) SU1223845A3 (en)
TR (1) TR19066A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2214619A (en) * 1988-01-19 1989-09-06 Jet Research Center Shaped-charged perforators
GB2295447A (en) * 1994-09-22 1996-05-29 Halliburton Co Perforating charge carrier assembley
CN112302582A (en) * 2019-07-24 2021-02-02 陕西陕哈雷泰克新材料科技有限公司 Interval type high-efficiency perforating device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5107929A (en) * 1990-08-09 1992-04-28 Schlumberger Technology Corporation Drop off method for perforating gun capsule charge carriers
US5063822A (en) * 1990-08-09 1991-11-12 Schlumberger Technology Corporation Perforating gun assembly including a carrier having a first section adapted to separate from a second section when a charge on the second section detonates

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2214619A (en) * 1988-01-19 1989-09-06 Jet Research Center Shaped-charged perforators
GB2214619B (en) * 1988-01-19 1991-09-25 Jet Research Center Capsule charge retaining device
GB2295447A (en) * 1994-09-22 1996-05-29 Halliburton Co Perforating charge carrier assembley
GB2295447B (en) * 1994-09-22 1998-09-16 Halliburton Co Perforating charge carrier assembly
CN112302582A (en) * 2019-07-24 2021-02-02 陕西陕哈雷泰克新材料科技有限公司 Interval type high-efficiency perforating device
CN112302582B (en) * 2019-07-24 2024-02-06 陕西陕哈应用科技有限公司 Spacing type high-efficiency perforating device

Also Published As

Publication number Publication date
DE2539947C3 (en) 1980-04-30
NL183664C (en) 1988-12-16
ES441057A1 (en) 1977-03-16
NO145388C (en) 1982-03-10
NO753210L (en) 1976-03-23
NL183664B (en) 1988-07-18
BR7506078A (en) 1976-08-03
AR209438A1 (en) 1977-04-29
IN143583B (en) 1977-12-31
JPS5633557B2 (en) 1981-08-04
OA05110A (en) 1981-01-31
NO145388B (en) 1981-11-30
TR19066A (en) 1978-04-21
DE2539947B2 (en) 1979-08-23
EG11962A (en) 1978-06-30
JPS5156701A (en) 1976-05-18
NL7510266A (en) 1976-03-23
AU8433775A (en) 1977-03-03
DE2539947A1 (en) 1976-04-01
SU1223845A3 (en) 1986-04-07

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19940919