RU93047429A - METHOD OF THERMODYNAMIC PERFORATION OF THE EXTERNAL WELL AND DEVICE FOR ITS IMPLEMENTATION - Google Patents

METHOD OF THERMODYNAMIC PERFORATION OF THE EXTERNAL WELL AND DEVICE FOR ITS IMPLEMENTATION

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Publication number
RU93047429A
RU93047429A RU93047429/03A RU93047429A RU93047429A RU 93047429 A RU93047429 A RU 93047429A RU 93047429/03 A RU93047429/03 A RU 93047429/03A RU 93047429 A RU93047429 A RU 93047429A RU 93047429 A RU93047429 A RU 93047429A
Authority
RU
Russia
Prior art keywords
chamber
layer
charge
cavity
column
Prior art date
Application number
RU93047429/03A
Other languages
Russian (ru)
Other versions
RU2077660C1 (en
Inventor
Н.А. Волдаев
Original Assignee
Н.А. Волдаев
Filing date
Publication date
Application filed by Н.А. Волдаев filed Critical Н.А. Волдаев
Priority to RU93047429A priority Critical patent/RU2077660C1/en
Priority claimed from RU93047429A external-priority patent/RU2077660C1/en
Publication of RU93047429A publication Critical patent/RU93047429A/en
Application granted granted Critical
Publication of RU2077660C1 publication Critical patent/RU2077660C1/en

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Claims (1)

Изобретение позволяет безударно перфорировать сверхзвуковой высокотемпературной газоабразивной струей обсаженные скважины, преимущественно со слабоконсолидированными пластами и вблизи газо- и водонефтяных контактов. Для предотвращения выноса песка поэтапно изменяют состав, температуру и режим истечения продуктов сгорания, сначала образуют эрозионным воздействием каверну в колонне и затрубном камне с выходом в продуктивный пласт, продувают каверну и наносят на ее поверхность фильтрующее покрытие с заданной пористостью. Камера сгорания включает сопловой блок, воспламенитель и заряд твердого топлива, который заключен в бронирующий стакан и состоит из слоя эрозионного воздействия, слоя продувки и слоя нанесения фильтрующего покрытия. Зазор между стаканом и камерой залит вязким компаундом, между зарядом и сопловым блоком размещен вкладыш, поворачивающий и стабилизирующий поток продуктов сгорания. Наружные поверхности камеры защищены экраном отражателя, сама камера снабжена прижимом. Изобретение может быть использовано для прожигания отверстия в стенке колонны, достаточного для захода фрезы, что значительно облегчает операцию зарезания второго ствола скважины.EFFECT: invention allows perforated supersonic high-temperature gas-jet abrasive jet to cased wells, mainly with weakly consolidated formations and close to gas and oil-water contacts. To prevent sand from being carried out, the composition, temperature and discharge mode of combustion products are gradually changed. At first, a cavity in the column and annular stone is formed by erosion, a cavity is blown out and a filter coating with a given porosity is applied to its surface. The combustion chamber includes a nozzle block, an igniter and a charge of solid fuel, which is enclosed in a reservation glass and consists of an erosive layer, a purge layer and a layer of filter coating. The gap between the glass and the chamber is filled with a viscous compound, between the charge and the nozzle block there is an insert that turns and stabilizes the flow of combustion products. The outer surfaces of the chamber are protected by a reflector screen, the chamber itself is equipped with a clamp. The invention can be used for burning holes in the wall of the column, sufficient for the entry of the cutter, which greatly facilitates the operation of killing the second wellbore.
RU93047429A 1993-10-11 1993-10-11 Method for thermodynamic perforation of the cased well and device for implementing the same RU2077660C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU93047429A RU2077660C1 (en) 1993-10-11 1993-10-11 Method for thermodynamic perforation of the cased well and device for implementing the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU93047429A RU2077660C1 (en) 1993-10-11 1993-10-11 Method for thermodynamic perforation of the cased well and device for implementing the same

Publications (2)

Publication Number Publication Date
RU93047429A true RU93047429A (en) 1996-05-20
RU2077660C1 RU2077660C1 (en) 1997-04-20

Family

ID=20148120

Family Applications (1)

Application Number Title Priority Date Filing Date
RU93047429A RU2077660C1 (en) 1993-10-11 1993-10-11 Method for thermodynamic perforation of the cased well and device for implementing the same

Country Status (1)

Country Link
RU (1) RU2077660C1 (en)

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