SU1099043A1 - Arrangement for flushing sand plugs in wells - Google Patents

Abstract

A WASHING DEVICE FOR SANDY WELLS IN THE WELL, containing a flushing pipe and a sealing element mounted on the wellhead, characterized in that, in order to increase its reliability in operation and simplify the design, it is equipped with an additional sealing element installed in the annular space and forming with said sealing element an annular cavity, and a check valve and a circulation valve communicating the annular cavity with the flushing tube, with a reverse valve mounted on the upper end of the myvochnoy 1truby and circulating tsionnge klapany - on its side surface.

Description

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The invention relates to those; oil and gas production, in particular, to the capital repair of wells.

During the operation of wells, very often very large sand plugs are formed, AJL scavengers use a variety of tools.

Lime device for: 1 root; : 1 wells from sand plugs, soda; a burning body with openings l psioggychik with a nozzle or a mill,

The closest to the invention of the pstechnical entity is a device for nf-Qi-grit sand plugs: i borehole containing a well,; : / bu and mounted on the mouth of the herme v; sound element 21,

The disadvantages of izvesgnyk device ;:: are the rapid wear of the rubber cuff during the launch; 1: ;; g; Erosion, erosion of the upflowing abrasive tsirkhulnym clutch (fuzzy cork, lack of a crawl of a cryptographic padding and the absence of a gap between the explosives; schviok.

Target H3o6pei a} n-v "VA. -T /; .;; device reliability reliability to; for; 5 :; those prk odmObrekn1-th ynpOiicF-- -; -; struktcii.

Posts 5le ak the purpose of accessing-1cbmMo that device is 1o for npoM-i n -; sandy; different from the well "from: to: from:; a; all the way round the pipe si ycTaiiOjj; ; a-ny at the mouth of the Germich Kzirzsho Rhy hte ment 5 is equipped with dolgach-Lugshi lugketizizruz tim zlementoi; installed in the intertube Irosgs n-PTZs, the image of D1 & a flushing pipe, with a valve being installed on the upper part of the flushing pipe, and zir1sul 1 | h:; nl1e valves - on its lateral wall,

In the drawing of su:; ei1agichesk izvbr. / GSas we offer ::: - device „general view,

The device-r-ao is an annular chamber 1 consisting of: "s, cylindrical body 2 with pk ::;: p -;:; Kim of the side of the outlet pipe 3 for supplying: IdkostKz. 4 types of cison.

; : .- sn: r} go:: :: ka upper l lower - nst x ha: er and :: ro {ow oh pipe b; :: brother1 6 and 7 | 1 :: 1apat amk,

nocNu.ibrn pgtoki in skzazhi: -1ax with prf .st; e timenum abotanmo: h y: triplets of wasps: y :), e; :: tplyaets next nigin about

PM pipes are pinched up to sandy-round, gr-: on the flange of the baptismal:; 1g (horn1-1ka) of the armature is attached- from.: 1b cam.rp 1 with noMOinio OJcaH; , ti ,. Screw on the ni-iny of the core - :: - usa 2. K bsg: and 0; h from the bottom 3 connects - - 1 - is: the military unit. Relax-,: е:; сс а;: нйКС 9о: i vvrT THe: -i, i,:;; uv; sOOO OY golozlt-1 -i 11CHYA iipc-start: -1u-ft - :) it -; Сi,; 1nG. s ver: x11; sgO; -rub lLO.9 gh S: s and s rum durable: -; v6a b

i;.: i-iM :: epej.JiB trubgL; i:: and-1krkul ryk ky KvianjtKaMU for lipoiCbiBKH. Los.PTO; .5zhlsci1 MVTIT: SI sala; ik zatyi ai-g and pa - Inak industrial1 with At ipo ::. ib :::: o4i; al., -through: OKOVI CIRK /,.- , okey stepped on

 ; о.г0-.у: Ь -р .. :: -: Fо4HGi ::. rude; i; olra; -- ;:;;- -WITH:.:; 1.1 -. :::; for k; lil: i-pOhihj aH, |. , 1 -;: 4Nl p Tj: | ;: j6Ka Ol: n ch; is-; : a about c rc .; and C / h / y.

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 y 7; n1r-: 1.; to: ing: -: yes;: a; - b, 7: wasp :; npONibiBL1, 1-robkchn celic1;: och: o;; o; noah ;-; j - 6r; she and: .v.1, ekaetsz 1;.: OIZBodits. ratsizan -1e; -Pi and -; & re,: 1; Noah goygb to: hUB 1 ..- hl, rychi- aa S.; 1 -Ng;:;. rude, iair iipoiiicc losdoot sgts ::. with bare:

iboobie :; ivoBbiCHTb slozvollst on .1Рж; .nost yc poj: icTna because-: for absence

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. | -Y: ko-pod & k -i-1L; O ;; epa.ii, s :: -.:;. .l; s: - s -: "kp.;. .--: лв. -v; ii, ipo: if: x: iг: з ;; Zora; -l :: l;: lzol. :: y us u ;;; oys Y: zo pO se: - eStno l: zlzktllcho from the diameter of time - acyl-1 :: kah: vr1; eta: 4 :: Eyyruup1ke zlenelt about o-azulst og,:: s: 1: s: - | y: o kakeilu, ustomazlek - -; v-ic and, s y - gye J lromz3 1dit. ullotn: poig: -; -: zuimemeito; - :; Zeu: zz. Gee-u; - ;: u: n from: -z1a.: LTNs with t-tsylgenic glr:, osu; iist: l t: 1 then with-o: ---. And cont3 10990434

the role of the seal is hermetic. Thus, the use of an izobny element, as well as bypassing the retention, makes it possible to carry out the use of special head-plugs without a hose and swivel, with hoses for draining fluid, to greatly facilitate and speed up the passage of The process of flushing and reducing the cost of repairing a pipe by reproducing one well at one time when flushing a plug. 500 rub.

Claims (1)

a flushing pipe and a sealing element installed on the mouth, characterized in that, in order to increase its reliability in operation and simplify the design, it is equipped with an additional sealing element installed in the annulus and forming an annular cavity with the specified sealing element, and return and circulation valves an annular cavity with a wash pipe, the check valve being installed at the upper end of the wash pipe, and the circulation valves on its side surface. : e The invention relates, x technology · oil production, in particular for overhaul of wells.