SU98687A1 - Surfing for core trimming in large diameter wells - Google Patents

Surfing for core trimming in large diameter wells

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Publication number
SU98687A1
SU98687A1 SU441455A SU441455A SU98687A1 SU 98687 A1 SU98687 A1 SU 98687A1 SU 441455 A SU441455 A SU 441455A SU 441455 A SU441455 A SU 441455A SU 98687 A1 SU98687 A1 SU 98687A1
Authority
SU
USSR - Soviet Union
Prior art keywords
projectile
surfing
large diameter
core
diameter wells
Prior art date
Application number
SU441455A
Other languages
Russian (ru)
Inventor
И.С. Баканов
В.А. Потапов
Original Assignee
И.С. Баканов
В.А. Потапов
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 И.С. Баканов, В.А. Потапов filed Critical И.С. Баканов
Priority to SU441455A priority Critical patent/SU98687A1/en
Application granted granted Critical
Publication of SU98687A1 publication Critical patent/SU98687A1/en

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Description

При КОЛОНКОВОМ бурении скважин большого диаметра (свыше 300 мм) в крепких породах вз тие керна  вл етс  весьма трудоемкой онерацией .For KOLONKY drilling of large-diameter wells (over 300 mm) in hard rocks, core drilling is a very laborious operation.

Предлагаемый снар д нозвол ет производить подрезку керна в таких скважинах с наименьшей затратой времени. Это достигаетс  применением дл  подрезки керна гибких оправок . Кажда  нз них выполнена в виде цепи, способной изгибатьс  только в одну сторону, и несет на конце резец. В нерабочем положении онравка с резцом размешаетс  в пазу стенки нижней части снар да и выталкиваетс  из него в процессе подрезки керна при помощи стержн , прикрепленного к верхней части снар да.The proposed projectile allows cutting the core in such wells with the least amount of time. This is achieved by using a flexible mandrel for trimming the core. Each of them is made in the form of a chain, capable of bending only in one direction, and carries a cutter at its end. In the off position, the cutter is placed in the groove of the wall of the lower part of the projectile and pushed out of it in the process of cutting the core with a rod attached to the upper part of the projectile.

На фиг. 1 изображен продольный разрез предлагаемого снар да; на фиг. 2-разрез вдоль паза, в котором помешена оправка с резцом; на фиг. 3 и 4-деталь оправки в проекци х.FIG. 1 shows a longitudinal section of the proposed projectile; in fig. 2-section along the groove in which the mandrel with the cutter is placed; in fig. 3 and 4-part mandrel in the projections.

Корпус снар да состоит из двух трубчатых отрезков-верхней части / и нижней части 2, соедин ющихс  между собой посредством выступов 3, вход щих в соответствующие впадины 4 и снабженных в местах соприкосновени  клиновыми направл ющими .The body of the projectile consists of two tubular segments — the upper part / and the lower part 2, which are interconnected by means of projections 3, which enter the corresponding depressions 4 and are provided with wedge guides at the points of contact.

По оси каждого выстуна 3 в стенке верхней части корпуса снар да и каждой впадины 4 ннжней части устроены назы 5, закрытые снаружи планками 6. У основани  нижней части 2 пазы 5 имеют закругление и вход т во внутрь в виде пр моугольных отверстий.The axis of each block 3 in the wall of the upper part of the shell of the projectile and each depression 4 of the lower part is arranged 5, closed outside by slats 6. At the base of the lower part 2, the slots 5 are rounded and enter inside as rectangular holes.

В каждый нз пазов 5 введен стержень 7, закрепленный своим верхним концом в пазе верхней части / снар да и вход щий своим нижним концом, несущнм ценную онравку 8 с резцом 9, в паз нижней части 2.In each nz of the grooves 5, a rod 7 is inserted, fixed with its upper end in the groove of the upper part / projectile and entering with its lower end, carrying valuable value 8 with the cutter 9, into the groove of the lower part 2.

На торце нижней трубчатой части 2 установлены ролнкн 10, которыми снар д опираетс  на забой.At the end of the lower tubular part 2, the ribs 10 are mounted, with which the projectile rests on the face.

В начальном положении снар да его трубчатые части 1 м 2 сцепл ютс  между собой посредством защелки //, вход шей в паз //. В этом положении снар д вводитс  в скважину и ему сообщаетс  вращение . Одновременно с вращением снар да его верхн   трубчата  часть / получает поступательное движение вниз. Под нажнмом стержней 7 соответствующие гнбкие цепные оправки 8 с резцами 9 выталкиваютс  из пазов 5, и резцы 9 производ т подрезку кериа.In the initial position of the projectile, its tubular parts of 1 m 2 interlock with each other by means of a latch //, the entrance of the neck into the groove //. In this position, the projectile is inserted into the well and rotation is reported to it. Simultaneously with the rotation of the projectile, its upper tubular part / receives a translational motion downwards. Under shear of the rods 7, the corresponding crimped mandrels 8 with the incisors 9 are pushed out of the slots 5, and the incisors 9 produce the trimming of the keria.

По окончании отрезки керна защелка 11 входит в наз 11-, вследствие чего верхн   часть / снар даAt the end of the core pieces, the latch 11 enters into the so-called 11-one, as a result of which the upper part / snare and

Фиг. 4FIG. four

SU441455A 1950-12-21 1950-12-21 Surfing for core trimming in large diameter wells SU98687A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU441455A SU98687A1 (en) 1950-12-21 1950-12-21 Surfing for core trimming in large diameter wells

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU441455A SU98687A1 (en) 1950-12-21 1950-12-21 Surfing for core trimming in large diameter wells

Publications (1)

Publication Number Publication Date
SU98687A1 true SU98687A1 (en) 1953-11-30

Family

ID=48373069

Family Applications (1)

Application Number Title Priority Date Filing Date
SU441455A SU98687A1 (en) 1950-12-21 1950-12-21 Surfing for core trimming in large diameter wells

Country Status (1)

Country Link
SU (1) SU98687A1 (en)

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