RU1776749C - Hydraulic pulse expander - Google Patents

Hydraulic pulse expander

Info

Publication number
RU1776749C
RU1776749C SU904819880A SU4819880A RU1776749C RU 1776749 C RU1776749 C RU 1776749C SU 904819880 A SU904819880 A SU 904819880A SU 4819880 A SU4819880 A SU 4819880A RU 1776749 C RU1776749 C RU 1776749C
Authority
RU
Russia
Prior art keywords
expander
hydraulic pulse
pulse expander
borehole wall
jet
Prior art date
Application number
SU904819880A
Other languages
Russian (ru)
Inventor
Михаил Евгеньевич Грабовский
Original Assignee
Всесоюзный научно-исследовательский институт гидрогеологии и инженерной геологии
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 Всесоюзный научно-исследовательский институт гидрогеологии и инженерной геологии filed Critical Всесоюзный научно-исследовательский институт гидрогеологии и инженерной геологии
Priority to SU904819880A priority Critical patent/RU1776749C/en
Application granted granted Critical
Publication of RU1776749C publication Critical patent/RU1776749C/en

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Abstract

Назначение: расширитель предназначен дл  увеличени  диаметра предварительно пробуренной скважины. Сущность изобретени : расширитель имеет корпус с соплами, прерыватель струй жидкости и стабилизирующие лопасти, прикрепленные к корпусу и его переходнику. При вращении буровой колонны прерыватель перекатываетс  по стенке скважины. Струи жидкости расшир ет скважину. Лопасти контактируют со стенкой скважины и разворачивают струи в направлении вращени  расширител , что повышает эффективность расширени  скважины. 1 з.п. ф-лы, 3 ил 2 табл.Purpose: the expander is designed to increase the diameter of a pre-drilled well. SUMMARY OF THE INVENTION: the expander has a body with nozzles, a fluid jet breaker and stabilizing blades attached to the body and its adapter. As the drill string rotates, the breaker rolls along the borehole wall. A jet of fluid expands the well. The blades contact the borehole wall and deploy jets in the direction of rotation of the expander, which increases the efficiency of the borehole expansion. 1 s.p. f-ly, 3 silt 2 tab.

Description

Т а б л и ц а 1Table 1

пP

Таблица2Table 2

Фиг 2Fig 2

.З.3

SU904819880A 1990-04-26 1990-04-26 Hydraulic pulse expander RU1776749C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU904819880A RU1776749C (en) 1990-04-26 1990-04-26 Hydraulic pulse expander

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU904819880A RU1776749C (en) 1990-04-26 1990-04-26 Hydraulic pulse expander

Publications (1)

Publication Number Publication Date
RU1776749C true RU1776749C (en) 1992-11-23

Family

ID=21511317

Family Applications (1)

Application Number Title Priority Date Filing Date
SU904819880A RU1776749C (en) 1990-04-26 1990-04-26 Hydraulic pulse expander

Country Status (1)

Country Link
RU (1) RU1776749C (en)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Г.П.Квашнин и А.И.Дерев нных. Водозаборные скважины с гравийными фильтрами. - М.: Недра, 1981, с. 185. рис.73. Там же, с.187, рис.75. *

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