SU1617129A1 - Roller-bit tool - Google Patents

Abstract

The invention relates to the technique and technology of drilling oil, gas and other wells. The goal is to increase drilling efficiency in intermittently hard rocks by increasing the slip of the teeth and the longitudinal direction of the load on the peripheral teeth at the initial moment of operation. The roller bit includes the feet 1, the roller cutters 2, mounted on the pins (C) 3 of the legs 1 rotatably. C 3 is located with parallel displacement of the axis relative to the diametral plane of the bit in the direction of its rotation and inclination of the axis C to the axis of the bit at an angle of at least 55 °. The offset of the C 3 axes and the pitch of the teeth 4 are related by the ratio L / T = 0.05 ... 0.1, where T is the tooth pitch, m. This provides an increase in drilling efficiency. 1 il.

Description

The invention relates to the technique and technology of drilling oil, gas and other wells and can be used in the design, manufacture and operation of roller cone bits.

The purpose of the invention is to increase the drilling efficiency in intermittently hard rock by increasing the slip of the teeth and the longitudinal direction of the load on the peripheral teeth at the initial moment of operation.

The drawing shows a roller bit.

The chisel contains legs 1, roller cutters 2 mounted rotatably on the pins 3 of the paws 4, having the axes of the pins 3 displaced in the direction of rotation of the bit; the displacement of the axles of the pins 3 (I) and the pitch of the teeth 4 on the rims of the cones 2 (t) are related by the relation

1 0.05-0.1,

moreover, the angle of the axes of the axles to the axis of the bit is at least 56 °.

The boundary values of the ratio are obtained as follows.

The ratio is 0.01 -0.017, which

is obtained by combining the type M bit parameter (tM 30-50 mm) and the type T bit (1 t 0.5 mm), a value of 5-3.0 mm 1 t 0.5 mm is entered.

Thus, a new ratio is obtained.

I 2,5-3,0m p bee P1

t 30-50m -O 05-O-.

In known roller bit designs, the ratio of design parameters (-), which determines the type of bit for

drilling from the softest to the hardest, lies in two intervals

I-0.01-0.04, Os

h

about

3 617i2} 4

1013-043 teeth of tooth 4 with yoverhiostio slaughtered on the axis of peripheral symmetry

In the proposed design, these inter-teeth 4, i.e. It works out axial compression.

I

ValdoP () L I Ots m gvrva "Comp-g - 0, OGz - 0.1, ,, ,,

 С Ф о о р-i :; п а -i з о D р е and e and

Rede1 I 01IM1 t -.- chisel, gaggoriy1 aroi1ech11ivdolpgo, sode zha1Dbe g; pm,

expands m closes the diagonal pattern for the effect;: - Seefive in / U1 and pivot, raspgyu.gko: of the mud of the destruction of his 8 mi sa1: xy according to SiLiec para.nleoi shift-kt; oii tsir ;:

rock hardness,; piOG ;. d1 / 1malyaliya pl;; i; casto1 doGraphic & i am able to use the i-iO lot to iannaEtt H8 / ii.i its rotation here w - in an increasing manner, HOiVtotv; ubirbii braid dol gz at the angle gsmegshe

The chisel works as follows. Zb., T.uapot.s.Hcs.-i, mounted, on pins with

.When drilling MflfiiMK rocks by yE-; e-B1 zm05 nos1b about the rotations, and the tooth, fixing the displacement of the axles of the pins 3 papas 1 dated on the cones with a certain size and 2.5 zkazt back, about t l /; h so f.f.i. to "so t-nts. g; the purpose

stan. total speed. okol kshI pov.1sh & ((- i-; l aff "" - -., yurenin j Si & iii

Zubev4 on POVERHIRSTG ;; iTO; ЫЗ ...-: -,); ЮЮ1И ..:. | v ...:. ::. , do1; GI n; / GgP.

ETB more; FFZ :: t g) s ai; |, g: og: 1P |,; y; -: .- 1; ch-; And I-; r; ::; ;. ., .itvfiben ;; npojniji

required for eff 1; ::; Td; zisg; r pyvip / iuet- - i;,. Clause-,). ;;:; (ip; iunsii.;.:. .lru ;;.: gch- iterv ::. pcL, 4;

soft breeds, npvi 3TON5 riiu iifoi-Jda axes /::; s - slaughtered in tsch1- nuti glomept s acorij.

trunnion 3 lop 1 to i S.S - Z.l) ws. offset 1.:c with -i -iа; -zu: ass ...:

increases to some degree; / ed. cf4vr: ioy; ii ;: M (j.

noot is peripheral ;; .yyu-.i:; - 4. fxvji-U-ieiiiiei, j ..,. ,,,,

axles of paws of 3 paws I and) ggri & odm-: i; growth

calibration a. In the result; etggp p- -put-yy-g vt - mix .. tsaggf, mi;

driving speed fssavjNGAeficT;:; - ::; perps-i; - tsu:.;.

J Type T, CT || : 1,: i.i ;; : iV: -;., b i

  I i-g; ; rC:; : -; b, I - H

  II

II

: g--: --n .:

i II J

1 I

2-li-0 01 and -. ) mU.I

Claims (1)

<claim-text> <claim-text> With <sup>! </ sup>. <sup>! </ sup> te l A <sub>; </ sub> C ka; · y o o </ claim-text> <claim-text> Techred ": .Morguktzl Proofreader N. Revskaya </ claim-text> <claim-text> T "rg, l 4 <sup> ν </ sup> 6 Subscription \ </ claim-text> <claim-text> a lot of committee up to the isog-p &lt; : Tlay and discoveries at the State Committee on Science and Technology of the USSR T035, Moscow, Zh-35, 4/5 Raushskaya nab. </ claim-text> <claim-text> Dalekkmy plant "Patent", g, Uzhgorod, st. G. agarin. 101 </ claim-text>