SU1357543A1

SU1357543A1 - Arrangement for isolating trouble areas in wells by liquid polymeric plugging mixtures

Info

Publication number: SU1357543A1
Application number: SU853925720A
Authority: SU
Inventors: Владимир Ильич Титов; Анатолий Михайлович Загрудный
Original assignee: Днепропетровское Отделение Института Минеральных Ресурсов
Priority date: 1985-07-05
Filing date: 1985-07-05
Publication date: 1987-12-07

Abstract

Изобретение относитс к области бурени скважин. Цель изобретени - повы- П1еиие эффективности и качества изол ционных работ за счет сокращени потерь тампонажно го .материала из-за преждевременной разгерметизации низлежащих пакетов . Устр-во содержит шнековый отражатель , затирочный элемент 2, закрон.ченный на переходнике 3, и разбуривающий меха- низ.м (РМ) 1 с режупиши элементами. РМ 1 выполнен в виде усеченного винта и имеет щпековчю снираль, направленную навстречу шнековому отражателю. Грани спирали и отражател вл ютс ми эле.ментами РМ 1. Б. шгодар такому выполнению РМ 1 снижаетс давление нл низлежащие оболочки с компонентами жидких и полимерных тампонажных смесей. Спущенна в зону водопоглощени скважины оболочка с компонентами захватываетс РМ 1, подт гиваетс к гран м и разрываетс на мелкие части, которые вл ютс закупоривающим материалом. Компоненты задавливаютс шнековым отражателем и затираютс элементом 2 в поры и трещины стенок скважины, формиру водонепроницаемую неремычку зоны водопоглощени и водопритоков без закупорки ствола скважины. 2 ил. (Л со сд ел со фиг JThe invention relates to the field of drilling. The purpose of the invention is to increase the efficiency and quality of insulation works by reducing the loss of cementing material due to premature depressurization of the underlying packages. The device contains a worm reflector, a trowel element 2, locked on adapter 3, and a rasping machine (PM) 1 with cutting elements. RM 1 is made in the form of a truncated screw and has a snippet snipple directed towards the auger reflector. The faces of the helix and the reflector are the elements of PM 1. B. This year, such an implementation of PM 1 reduces the pressure on the down shell with components of the liquid and polymer cement mixtures. The sheath with the components, which is lowered into the water absorption zone of the well, is captured by PM 1, is pulled to the edges and is torn into small pieces, which are a plugging material. The components are crushed by a screw reflector and are rubbed over by element 2 into the pores and cracks of the borehole walls, forming a waterproof impermeable water absorption zone and water inflows without plugging the well bore. 2 Il. (L with cd ate with fig J

Description

Изобретение относитс к области бурени скважин, в частности к устройствам дл изол ции зон осложнений.The invention relates to the field of drilling wells, in particular, to devices for isolating zones of complications.

Целью изобретени вл етс повышение эффективности и качества изол ционных работ за счет сокращени потерь тампо- нажного материала из-за преждевременной разгерметизации низлежапАих пакетов с исходными компонентами и задавливани их 8 неперемешанном виде в изолируемое пространство.The aim of the invention is to increase the efficiency and quality of the insulation works by reducing the loss of tamper material due to premature depressurization of the downwardly packed bags with the original components and crushing their 8 unmixed form into an isolated space.

На фиг. 1 показано устройство дл изол ции зон осложнений в скважинах жидкими полимерными тампонажными смес ми , общий вид; на фиг. 2 - сечение А-А на фиг. 1.FIG. 1 shows a device for isolating zones of complications in wells with liquid polymer cement mixtures, a general view; in fig. 2 is a section A-A in FIG. one.

Устройство состоит из разбуривающего механизма 1, выполненного в виде двух направленных навстречу друг к другу шнеко- вых отражателей, нижний из которых имеет вид усеченного винта, сопр гающиес грани которых по наружной части армированы твердосплавными вставками, эластичного затирочного элемента 2, закрепленного на переходнике 3.The device consists of a scribing mechanism 1, made in the form of two oppositely directed screw reflectors, the lower one of which has the shape of a truncated screw, whose matching edges along the outside are reinforced with carbide inserts, an elastic grouting element 2 fixed on the adapter 3.

си перемешиваютс и задавливаютс верхним шнековым отражателем с последующим затиранием затирочным элементом в поры и трещины стенок скважины, форми- с ру водонепроницаемую перемычку зоны во- допоглощени и водопритоков без закупорки ствола скважины.The sieves are mixed and crushed with an upper auger reflector, followed by rubbing the trowel into the pores and cracks of the borehole walls, forming a waterproof barrier of the absorption zone and water inflow without plugging the well bore.

Благодар разбуривающему механизму, выполненному в виде двух направленных навстречу друг к другу шнековых отражателей , нижний из которых имеет вид усеченного винта, сопр гаюп 1иес грани которых по наружной части армированы твердосплавными вставками, снижаетс давление на низлежащие оболочки с компонентами жидких и пол.имерных тампонажных смесей при разбуривании верхних, оболочек и предотвращаетс их преждевременна разгерметизаци .Thanks to the drilling mechanism, made in the form of two screw-reflectors directed towards each other, the lower one of which looks like a truncated screw, whose edges match the outer parts with reinforced carbide inserts, the pressure on the underlying shells with the components of liquid and half-dimensional cement mixtures is reduced when the upper shells are drilled, their premature depressurization is prevented.

10ten

Claims

Invention Formula

20

A device for isolating zones of complications in wells with liquid polymer and sea muds, including a drilling machine with cutting elements. The device works as follows. trowel reflector

element and adapter, characterized in that in order to increase the efficiency and quality of insulation work by reducing the loss of cement material due to premature depressurization of the lower water absorption zone and the water inflow of the well, a quick-setting liquid polymer cement mixture that was previously lowered in sealed shells (for example, in polyethylene containers), razr

using the spraying mech. Q lying packages, the spuding mechanism

melt with

at the same time, the casing with the components of the mixture is captured by the lower screw reflector, drawn to the mating faces and torn into small pieces, which is an additional blocking material. The components are made in the form of a truncated screw and have an auger coil directed towards the auger reflector, while the mating faces of the auger coil and the auger reflector are the cutting elements of the scavenging mechanism.

The sieves are mixed and crushed with an upper screw reflector, followed by rubbing the trowel into the pores and cracks of the borehole walls, forming a waterproof barrier of the absorption zone and water inflow without plugging the well bore.

Thanks to the drilling mechanism, made in the form of two screw-reflectors directed towards each other, the lower one of which looks like a truncated screw, whose edges match the outer parts with reinforced carbide inserts, the pressure on the underlying shells with the components of liquid and half-dimensional cement mixtures is reduced when the upper shells are drilled, their premature depressurization is prevented.

Invention Formula

lying packages, spreader

made in the form of a truncated screw and has a screw helix directed toward the screw reflector, while the mating faces of the screw spiral and the screw reflector are the cutting elements of the spraying mechanism.

Compiled by A. Kondratenkov

Editor S. PatrushevTechred I. VeresKorrektor N. Korol

Order 5497/29 Circulation 533 Subscription

E5NIIPI State Committee C, SSR on Inventions and Discoveries

P3035, Moscow, F-35, Raup1ska nab. 4/5. Production and full-graphical production. i-. Uzhgorod, st. G1project1.: A. four

FIG. 2