FR2347524A1 - Appts. for treating rock surrounding a well bore - has axially floating nozzles for engaging and forming perforations of predetermined size in well casing - Google Patents

Appts. for treating rock surrounding a well bore - has axially floating nozzles for engaging and forming perforations of predetermined size in well casing

Info

Publication number
FR2347524A1
FR2347524A1 FR7610331A FR7610331A FR2347524A1 FR 2347524 A1 FR2347524 A1 FR 2347524A1 FR 7610331 A FR7610331 A FR 7610331A FR 7610331 A FR7610331 A FR 7610331A FR 2347524 A1 FR2347524 A1 FR 2347524A1
Authority
FR
France
Prior art keywords
nozzles
fluid
appts
housing
well bore
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
FR7610331A
Other languages
French (fr)
Other versions
FR2347524B1 (en
Inventor
K M Tagirov
N R Akopian
V V Konontsev
J N Lutsenko
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.)
SEV KAVKAZSKY I PRIROD
Original Assignee
SEV KAVKAZSKY I PRIROD
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 SEV KAVKAZSKY I PRIROD filed Critical SEV KAVKAZSKY I PRIROD
Priority to FR7610331A priority Critical patent/FR2347524A1/en
Publication of FR2347524A1 publication Critical patent/FR2347524A1/en
Application granted granted Critical
Publication of FR2347524B1 publication Critical patent/FR2347524B1/fr
Granted legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
    • E21B43/114—Perforators using direct fluid action on the wall to be perforated, e.g. abrasive jets
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
    • E21B43/25—Methods for stimulating production
    • E21B43/26—Methods for stimulating production by forming crevices or fractures
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
    • E21B43/112—Perforators with extendable perforating members, e.g. actuated by fluid means

Abstract

Appts. for treating rock surrounding a cased well bore includes an elongate hollow housing carrying a set of radically-oriented nozzles, each communicating with the interior of the housing to receive abrasive-laden fluid supplied to the housing. Each nozzle is slidably supported by the housing so that it is pressed into contact with the casing under the influence of the fluid and its central flow passage is enlarged adjacent its downstream end. Each nozzle also has branch passages communicating with the enlarged portion of the central passage and opening to the exterior of the nozzle. Fluid initially supplied to the nozzles escapes into the well bore via the branch passages but erodes the areas of the casing isolated by the outer ends of the nozzles to form perforations of a dia. equal to that of the enlarged portions of central passages of the nozzles. Once the perforations have been established, fluid subsequently supplied to the nozzles enters the surrounding rock to effect the desired treatment, e.g. fracturing and acidising. Appts. provides for formation of perforations of a predetermined size, which ensures that virtually the entire kinetic energy of the treatment fluid is available for forming fractures.
FR7610331A 1976-04-08 1976-04-08 Appts. for treating rock surrounding a well bore - has axially floating nozzles for engaging and forming perforations of predetermined size in well casing Granted FR2347524A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7610331A FR2347524A1 (en) 1976-04-08 1976-04-08 Appts. for treating rock surrounding a well bore - has axially floating nozzles for engaging and forming perforations of predetermined size in well casing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7610331A FR2347524A1 (en) 1976-04-08 1976-04-08 Appts. for treating rock surrounding a well bore - has axially floating nozzles for engaging and forming perforations of predetermined size in well casing

Publications (2)

Publication Number Publication Date
FR2347524A1 true FR2347524A1 (en) 1977-11-04
FR2347524B1 FR2347524B1 (en) 1978-09-01

Family

ID=9171578

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7610331A Granted FR2347524A1 (en) 1976-04-08 1976-04-08 Appts. for treating rock surrounding a well bore - has axially floating nozzles for engaging and forming perforations of predetermined size in well casing

Country Status (1)

Country Link
FR (1) FR2347524A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2607865A1 (en) * 1985-04-09 1988-06-10 Schellstede Herman METHOD AND APPARATUS FOR PERFORATING TUBING FOR OIL WELLS
US5107943A (en) * 1990-10-15 1992-04-28 Penetrators, Inc. Method and apparatus for gravel packing of wells
US5327970A (en) * 1993-02-19 1994-07-12 Penetrator's, Inc. Method for gravel packing of wells

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2607865A1 (en) * 1985-04-09 1988-06-10 Schellstede Herman METHOD AND APPARATUS FOR PERFORATING TUBING FOR OIL WELLS
US5107943A (en) * 1990-10-15 1992-04-28 Penetrators, Inc. Method and apparatus for gravel packing of wells
US5327970A (en) * 1993-02-19 1994-07-12 Penetrator's, Inc. Method for gravel packing of wells

Also Published As

Publication number Publication date
FR2347524B1 (en) 1978-09-01

Similar Documents

Publication Publication Date Title
WO2003078791A3 (en) Method and apparatus for injecting steam into a geological formation
US3520362A (en) Well stimulation method
US7284612B2 (en) Controlling transient pressure conditions in a wellbore
US4050529A (en) Apparatus for treating rock surrounding a wellbore
GB2299113A (en) Apparatus and method for perforating and fracturing
GB1175187A (en) Energy Wave Fracturing of Formations.
GB1420215A (en) Jet boosters
NO983838L (en) Br DEG nnhullsapparat
JPS52155224A (en) Preparation of inorganic fiber and equipment therefor
IE45529L (en) Forming a fibrous element
JPS57112599A (en) Method of and apparatus for propelling slide coating apparatus
FR2347524A1 (en) Appts. for treating rock surrounding a well bore - has axially floating nozzles for engaging and forming perforations of predetermined size in well casing
GB1008499A (en) Method of treating an unconsolidated or substantially unconsolidated formation
FR2321318A1 (en) Physical production of foams - by introducing gas into liquid, and leading gas liquid mixt. through zone contg. randomly distributed obstacles, esp. wires or fibres
GB1068700A (en) Apparatus for injecting fluids into earth formations penetrated by a well
EA199800832A3 (en) Chemically induced stimulation of subterranean carbonaceous formations with gaseous oxidants
JPS5334040A (en) Promotion method of extracted energy from fluid flow by turbine and pump turbine set used for it
US3522842A (en) Apparatus for oil production amplification by spontaneous emission of radiation
CA2122163A1 (en) Method and Apparatus for Erosive Stimulation of Open Hole Formations
SU732509A1 (en) One-shot pneumatic well implement
FR2347523A1 (en) Perforating well casing and fracturing producing formation - by pumping abrasive fluid through nozzles pressed against the casing
ES367220A1 (en) Methods and devices for producing jets by free expansion of a gas
SU599576A1 (en) Oilfield development method
GB1526128A (en) Method and device for breaking hard compact material such as rock
IT1002352B (en) EQUIPMENT FOR PRODUCING CARBONIC SNOW INCLUDING A SPECIAL NOZZLE INSERTED UPSTREAM OF THE CONTROL VALVE

Legal Events

Date Code Title Description
ST Notification of lapse