SU500344A2

SU500344A2 - Plug-in piston bit

Info

Publication number: SU500344A2
Application number: SU2064246A
Authority: SU
Inventors: Роман Васильевич Винярский; Иван Николаевич Слободянюк
Original assignee: Полтавское отделение Украинского научно-исследовательского геологоразведочного института
Priority date: 1974-10-04
Filing date: 1974-10-04
Publication date: 1976-01-25

Description

(54) ВСТАВНОЕ ПОРШНЕВОЕ ДОЛОТО(54) INSERT PISTON CHIP

1one

Изобретение относитс к области буровой техники, а именно к вставному породоразрушаюшему инструменту шарошечного типа.The invention relates to the field of drilling equipment, namely to a plug-in rock-cutting tool of a roller-type.

Известно вставное поршневое долото по основному авт. св. № 390253, включающее корпус, бурильную головку, поршень и гибкие т ги.Known plug piston bit on the main ed. St. No. 390253, including body, drill head, piston and flexible rods.

Целью изобретени вл етс обеспечение бурени скважин с отбором керна.The aim of the invention is to ensure the drilling of coring wells.

Это достигаетс тем, что норшень долота йьшолнен полым и снабжен керноприемной трубой с кернорвателем.This is achieved by the fact that the norn bit of the bit is hollow and is equipped with a core tube with a core holder.

На фиг. 1 изображено долото дл буреНИН с отбором керна, вид спереди; на фиг. 2 - то же, вид сбоку: на фиг. 3 - долото дл бурени без отбора керна, вид спереди; на фиг. 4 - то же, вид сбоку.FIG. 1 shows a chisel for boreholes with coring, front view; in fig. 2 is the same side view: in FIG. 3 - drill bit for drilling without core sampling, front view; in fig. 4 - the same, side view.

Долото включает корпус 1, обечайку 2, соединенную с бурильной головкой 3 через шарнир 4, полЬ1Й поршень 5 с кернорвателем 6 в нижней части и керноприемной трубой 7 в верхней части и гиб| .кую т гу 8, соедин ющую бурильную го2The bit includes a housing 1, a shell 2, connected to the drill head 3 through a hinge 4, a piston 5 of the piston 5 with the core gauge 6 in the lower part and a core receiver 7 in the upper part and bend | .kuyu 8 connecting the drill hole 2

j ловку 3 с муфтой 9. Поршень 5 выполнен с осевыми каналами 10, в которых размещены обратные клапаны 11. Причем каналы 10 в рабочем положении долота совпадают с каналами 12 бурильной головки 3,При бурении сплошным забоем используетс заглушка 13.j Dexterity 3 with coupling 9. The piston 5 is made with axial channels 10, in which check valves 11 are placed. Moreover, channels 10 in the working position of the bit coincide with channels 12 of the drill head 3. When drilling with solid bottom, a plug 13 is used.

Долото работает следующим образом.Chisel works as follows.

Claims

When the flushing fluid is supplied, the piston 5- moves downwards. At the same time, the shell 2 is connected and the drill head 3 is connected to it upwards. At the same time, due to the potential energy of the extended i-bend 8, the drill head 3 begins to turn around the hinge 4. With further movement of the piston 5 down the burshp on the head 3, lifting, abut the upper part of the housing rests on the end face of the clutch 9. The position of the drill head 3 occupies the working position and rests in the grooves 14 of the coupling 9, and the flushing fluid through the channels 10 and 12 begins to go to the bottom. After this, the drilling process begins. If the drilling is carried out with - core sampling, then shortened cones are used, which form the core entering the core tube 7. At the end of the drilling process, the tool is removed from the bottom and the backwash is performed. In this case, the coreplate B decides the core, and the industrial fluid, the passage through the channels 12, closes the check valves 11. Under the pressure of the washing liquid, the piston 5 starts to move the CI up, moving the casing 2 with the drill head 3 down. In the process, the drill head 3 rotates around the hinge 4 and takes up a transport position. In case of drilling with a continuous bottom, the core-receiver tube 7 and the core breaker are removed, and a plug 13 is installed in place of the latter. In this case, the cone is also replaced. All operations to bring the instrument into working and transport position are carried out in the same sequence. Claims Insertable piston bit for aut. St. 390253, from Ji and so that in order to ensure the drilling of wells with core sampling, the piston is hollow and equipped with a core receiver with a core pipe.

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