RU94028697A - Centering mount of drilling tool - Google Patents

Centering mount of drilling tool

Info

Publication number
RU94028697A
RU94028697A RU94028697/03A RU94028697A RU94028697A RU 94028697 A RU94028697 A RU 94028697A RU 94028697/03 A RU94028697/03 A RU 94028697/03A RU 94028697 A RU94028697 A RU 94028697A RU 94028697 A RU94028697 A RU 94028697A
Authority
RU
Russia
Prior art keywords
ribs
case
bushing
width
hole
Prior art date
Application number
RU94028697/03A
Other languages
Russian (ru)
Inventor
Г.И. Шаронов
В.П. Якимов
Original Assignee
Г.И. Шаронов
В.П. Якимов
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 Г.И. Шаронов, В.П. Якимов filed Critical Г.И. Шаронов
Priority to RU94028697/03A priority Critical patent/RU94028697A/en
Publication of RU94028697A publication Critical patent/RU94028697A/en

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  • Earth Drilling (AREA)

Abstract

FIELD: mining industry. SUBSTANCE: invention is meant for stabilization of tool in hole and for reduced vibration of it in process of drilling. Centering mount includes hollow case, bushing with centering ribs mounted on case. Radial blind hole in made in outer side of case, through radial hole of smaller diameter mated to radial blind hole of case is made in bushing between ribs. Fixation of bushing in case is carried out by means of two-step pin which enters radial blind hole of case with its step of bigger diameter and through radial hole of bushing with step of smaller diameter. Pin has capability of limited axial movement by value equal or exceeding thickness of bushing between ribs. It can be spring-loaded on side of butt of step of bigger diameter. Version of manufacture of separable centering ribs is also possible. In this case ribs have stepped expansion in cross-section close to base. Longitudinal closed slots are made in bushing to accommodate ribs. Longitudinal semi-open grooves are cut in side surface of case. Width of slots in bushing is equal to width of ribs in midpart of cross-section, width of grooves of case is equal to width of step close to base of rib. EFFECT: improved stabilization of tool in hole, reduced vibration in process of drilling. 3 cl, 4 dwg

Claims (1)

Использование: стабилизация инструмента в скважине и снижение за счет этого его вибраций в процессе бурения. Сущность изобретения: центратор содержит полый корпус и установленную на корпусе втулку с центрирующими ребрами. В корпусе с наружной стороны выполнено радиальное глухое отверстие, а во втулке между ребрами - сквозное радиальное отверстие меньшего диаметра, совмещенное с радиальным глухим отверстием корпуса. Фиксация втулки на корпусе осуществляется посредством двухступенчатого пальца, который своей ступенью большого диаметра входит в радиальное глухое отверстие корпуса, а ступенью меньшего диаметра - в сквозное радиальное отверстие втулки. Палец имеет возможность ограниченного осевого перемещения на величину, равную или превышающую толщину втулки между ребрами, и может быть подпружинен со стороны торца ступени большого диаметра. Возможен вариант выполнения центрирующих ребер съемными. В этом случае ребра имеют у основания ступенчатое расширение в поперечном сечении. Под ребра во втулке выполняются продольные закрытые прорези, а на боковой поверхности корпуса - продольные полуоткрытые пазы. Ширина прорезей во втулке равна ширине ребер в средней части поперечного сечения, а ширина пазов корпуса ширине ступени у основания ребер. 2 з.п.ф-лы, 4 ил.Usage: stabilization of the tool in the well and the reduction due to this of its vibration during drilling. The inventive centralizer contains a hollow body and mounted on the body of the sleeve with centering ribs. A radial blind hole is made in the housing from the outside, and a through radial hole of a smaller diameter combined with a radial blind hole of the housing is made between the ribs in the sleeve. The sleeve is fixed on the housing by means of a two-stage pin, which with its large diameter step enters the radial blind hole of the housing, and with a smaller diameter step into the through radial hole of the sleeve. The finger has the possibility of limited axial movement by an amount equal to or greater than the thickness of the sleeve between the ribs, and can be spring loaded from the side of the end face of a large diameter step. An embodiment of the centering ribs is removable. In this case, the ribs have a stepwise expansion in the cross section at the base. Under the ribs in the sleeve, longitudinally closed slots are made, and longitudinally half-open grooves are made on the side surface of the housing. The width of the slots in the sleeve is equal to the width of the ribs in the middle of the cross section, and the width of the grooves of the housing is the width of the step at the base of the ribs. 2 C.p. fs, 4 ill.
RU94028697/03A 1994-07-29 1994-07-29 Centering mount of drilling tool RU94028697A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU94028697/03A RU94028697A (en) 1994-07-29 1994-07-29 Centering mount of drilling tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU94028697/03A RU94028697A (en) 1994-07-29 1994-07-29 Centering mount of drilling tool

Publications (1)

Publication Number Publication Date
RU94028697A true RU94028697A (en) 1996-06-10

Family

ID=48448555

Family Applications (1)

Application Number Title Priority Date Filing Date
RU94028697/03A RU94028697A (en) 1994-07-29 1994-07-29 Centering mount of drilling tool

Country Status (1)

Country Link
RU (1) RU94028697A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU206098U1 (en) * 2021-03-01 2021-08-23 Открытое акционерное общество "ЛМЗ Универсал" DRILLING ROD

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU206098U1 (en) * 2021-03-01 2021-08-23 Открытое акционерное общество "ЛМЗ Универсал" DRILLING ROD

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