SU1514895A1 - Apparatus for sinking vertical wells - Google Patents

Abstract

The invention relates to a drilling technique and can be used to drill deep wells with a tubing method. The purpose of the invention is to improve the energy performance. The device includes a turbo-drill, chisel, expander, reversible gearbox. The expander is rigidly connected to the body of the turbo-drill. The housing and the drive shaft of the reversing gearbox are rigidly connected respectively to the housing and the shaft of the turbo-drill, and the driven shaft to the bit. A string of drill pipes, rotated by the rotor of the drilling rig in the direction of rotation clockwise, causes the turbo-drill casing and the expander to rotate. The rotor of the turbo-drill rotates the drive shaft of the reversing gearbox in the direction of rotation clockwise. The output shaft of the gearbox and the bit rotate in the opposite direction. 3 il.

Description

one

(21) 4265368 / 23-03

(22) 06/18/87

(46) 15.10 „89„ Bul. № 38 (7 i) All-Union Scientific Research Institute of Drilling Equipment (72) V.I. Avilov, V.V. Chuk, Yu.R.Ioanesn, V.S.Lapavok, V., M.Moiseenko and N. F.Pekarsky

(53) 622.24,05 (088.8)

(56) USSR Copyright Certificate No. 878895, cl. Е 21 В 7/08, 1979.

USSR author's certificate K 794139, class, E 21 B 4/20, 1978.

(54) DEVICE FOR WIRING VERTICAL WELLS

(57) The invention relates to a drilling technique and may be used.

for drilling deep wells in a turbine way. The purpose of the invention is to improve the energy performance. The device includes a turbo-drill, chisel, expander, reversible gearbox. The expander is rigidly connected to the icopnycoM turbo-drill. The housing and the drive shaft of the reversing gearbox are rigidly connected respectively to the housing and the shaft of the turbo-drill, and the driven shaft to the bit. A string of drill pipe, rotated by the rotor of the drilling rig in the direction of rotation clockwise, causes the drill pipe body and expander to rotate. The rotor of the turbo-drill rotates the drive shaft of the reversing gearbox in the direction of rotation clockwise. The output shaft of the gearbox and the bit rotate in the opposite direction. 3 il.

(ABOUT

with

The invention relates to a drilling technique and can be used for drilling deep wells by a turbine method.

The purpose of the invention is to improve the energy performance.

FIG. 1 schematically shows a device for conducting vertical wells; in fig. 2, 3 — Dependences of the torque on the shaft of the turbo-drill from the frequency of its rotation.

 A device for posting vertical wells includes a turbo-drill 1, a chisel 2, an expander 3, a reversing gear 4, an Extender 3 is rigidly connected to the turbo-drill casing 1. 1, a. driven shaft 6 - with a chisel 2.

The device for vertical wells is as follows.

A drill pipe string rotated by a drilling rig rotor (not shown) in the direction of rotation clockwise causes the turbodrill case 1 and the deflector 3 to rotate. When flushing fluid is supplied by a mud pump (not shown) to the turbodrill 1, the rotor of the latter rotates the driving shaft 5 of the variable gear .4 by typing

four

oo bi

H15.14895

clockwise, and the driven shaft 6 of the gearbox 4 and the bit 2 rotate in the opposite direction .5

Since the rotors and stators of the turbo-drill 1 rotate in the same direction, their angular velocities are summed, and the initial characteristic of the turbo-drill M. - O- - PT turns into its advantageous

M.'s characteristic - p, comparisons of FIG. 2 and

as seen from 3.

Claims (1)

Invention Formula A device for conducting vertical wells, including a turbo-drill, a chisel, an expander rigidly connected to the turbo-drill casing, characterized in that, in order to improve the energy performance, it is equipped with a reversible gearbox, the drive shaft of which is rigidly connected to the turbo-drill shaft, the driven shaft with a chisel , and the body is fixed relative to the body of the turbo-drill; m FIG. 2 Fig.Z