FR2546774A1 - Injector-scraper for pipeline treatment product - Google Patents

Injector-scraper for pipeline treatment product Download PDF

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Publication number
FR2546774A1
FR2546774A1 FR8309075A FR8309075A FR2546774A1 FR 2546774 A1 FR2546774 A1 FR 2546774A1 FR 8309075 A FR8309075 A FR 8309075A FR 8309075 A FR8309075 A FR 8309075A FR 2546774 A1 FR2546774 A1 FR 2546774A1
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France
Prior art keywords
scraper
treatment product
pipe
chemical treatment
measuring
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Granted
Application number
FR8309075A
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French (fr)
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FR2546774B1 (en
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to FR8309075A priority Critical patent/FR2546774B1/en
Publication of FR2546774A1 publication Critical patent/FR2546774A1/en
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Publication of FR2546774B1 publication Critical patent/FR2546774B1/en
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
    • B08B9/053—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction
    • B08B9/055—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the same cross-section of the pipes, e.g. pigs or moles
    • B08B9/0557—Pigs with rings shaped cleaning members, e.g. cup shaped pigs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
    • B08B9/053—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction
    • B08B9/055—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the same cross-section of the pipes, e.g. pigs or moles
    • B08B9/0558—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the same cross-section of the pipes, e.g. pigs or moles with additional jet means

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)

Abstract

The invention relates to the maintenance of pipelines for fluids. It relates to a scraper for pipelines capable of selectively injecting at least one chemical treatment product at at least one predetermined point or pipe section, which comprises a body 2 fitted with corollae or dishes 3 providing sealing with the inner wall of the pipeline, characterised in that the body forms a storage container 4 for the chemical treatment product and in that it additionally comprises: at least one ejection orifice 12 in communication with the said storage container; means 6, 7, 8 for ejecting the chemical treatment product through the said orifice; and means 9 for controlling the means of ejection interacting with means 10 for measuring the distance travelled by the scraper in the pipeline. Use in the petroleum field.

Description

L'invention concerne un racleur-injecteur de produit de traitement pour conduites, en particulier pour conduites d'hydrocarbures. The invention relates to a scraper-injector for treatment product for pipes, in particular for hydrocarbon pipes.

Le problème de la corrosion interne se rencontre avec la plupart des conduites d'hydrocarbures. A ce problème vient souvant s'ajouter l'accumulation de dépôts solides sur les parois internes de la conduite ou la formation d'hydrates dans le cas des gazoducs. The problem of internal corrosion is encountered with most oil lines. To this problem is often added the accumulation of solid deposits on the internal walls of the pipe or the formation of hydrates in the case of gas pipelines.

La technique actuelle de lutte contre la corrosion interne et/ou l'encrassement des conduites consiste à traiter chimiquement la conduite en injectant des produits de traitement appropriés au départ de celleci. The current technique for combating internal corrosion and / or fouling of pipes consists in chemically treating the pipe by injecting appropriate treatment products from it.

Cette technique présente diverses insuffisances
- son efficacité diminue avec la distance par rappor
au point dtinåection et devient insuffisante au
bout de quelques dizaines de dilomètres, ee qui
oblige à multiplier les points d'injection dans
le cas des conduites de grande longueur, avec
les problèmes que l'on peut supposer dans le cas
des conduites sous-marines.This technique has various shortcomings
- its effectiveness decreases with distance compared to
at the point of detection and becomes insufficient
after a few dozen dilometers, which
requires multiplying the injection points in
the case of very long pipes, with
the problems that can be assumed in the case
underwater pipes.

- elle est très dépendante des conditions d'écoule
ment du fluide parcourant la conduite, conditions
que l'on ne connatt pas toujours parfaitement.- it is very dependent on the flow conditions
fluid flowing through the pipe, conditions
that we don't always know perfectly.

- elle ne permet pas de traiter de façon sélective
certains points ou tronçons spécifiques de la
conduite pouvant présenter une sensibilité
particulière à la corrosion ou à l'encrassement.- it does not allow selective processing
certain specific points or sections of the
conduct which may be sensitive
peculiar to corrosion or fouling.

L'invention vise à obvier à ces insuffisantes et à fournir un tableur (que l'on appelle aussi piston râleur) qui, outre sa fonction classique de nettoyage, a la capacité d'injecter dans la conduite un produit ou mélange de produits de traitement chimique en au moins un point ou tronçon prédéterminé de cette conduite. The invention aims to obviate these shortcomings and to provide a spreadsheet (also called a grease piston) which, in addition to its conventional cleaning function, has the capacity to inject into the pipe a product or mixture of treatment products. chemical in at least one predetermined point or section of this pipe.

Plus précisément, l'invention concerne un racleur pour conduites capable d'injecter sélectivement au moins un produit de traitement chimique en au moins un point ou tronçon prédéterminé d'une conduite, qui comprend un corps sur lequel sont montées des corolles ou coupelles assurant l'étanchéité avec la paroi interne de la conduite, caractérisé en ce que le corps forme-réservoir pour le produit de traitement chimique, et en ce qu'il comprend, en outre : au moins un orifice d'éjection communiquant avec ledit réservoir; des moyens d'éjection du produit de traitement chimique à travers ledit orifice; et des moyens de commande des moyens d'éjection coopérant avec des moyens de mesure de la distance parcourue par le racleur dans la conduite0
Les moyens d'éjection du produit de traitement chimique peuvent consister en un piston actionnable par un gaz comprimé contenu dans une bouteille munie d'une vanne appropriée et logée dans le corps du receleurs
En variante, on pourrait utiliser la différence de pression régnant dans la conduite entre l'amont et l'aval du racleur pour actionner ledit piston. Ils pourraient consister aussi en une pompe actionnée électriquement ou pneumatiquement. More specifically, the invention relates to a scraper for pipes capable of selectively injecting at least one chemical treatment product into at least one predetermined point or section of a pipe, which comprises a body on which corollas or cups ensuring the sealing with the internal wall of the pipe, characterized in that the body forms a reservoir for the chemical treatment product, and in that it further comprises: at least one ejection orifice communicating with said reservoir; means for ejecting the chemical treatment product through said orifice; and means for controlling the ejection means cooperating with means for measuring the distance traveled by the scraper in the pipe
The means for ejecting the chemical treatment product may consist of a piston actuated by a compressed gas contained in a bottle fitted with a suitable valve and housed in the body of the receivers
Alternatively, one could use the pressure difference prevailing in the pipe between the upstream and downstream of the scraper to actuate said piston. They could also consist of an electrically or pneumatically actuated pump.

Les moyens de commande peuvent consister en un programmateur à relais électromagnétique ou autre commandant l'actionnement de la vanne de la bouteille à gaz comprimé ou de la pompe, relié auxdits moyens de mesure de la distance parcourue par le racleur. Ces moyens de mesure peuvent être euxSmêmes de types très divers. Ce peut être, par exemple, une simple roulette odométrique maintenue en contact contre la paroi interne de la conduite et reliée aui moyens de commande. Ce pourrait être aussi un capteur de pression (la pression régnant dans la conduite variant --------------------- avec la distance) ou une simple horloge (la distance parcourue étant fonction du temps). The control means may consist of an electromagnetic relay programmer or other controlling the actuation of the valve of the compressed gas cylinder or of the pump, connected to said means for measuring the distance traveled by the scraper. These measurement means can themselves be of very different types. It can be, for example, a simple odometric wheel kept in contact against the internal wall of the pipe and connected to the control means. It could also be a pressure sensor (the pressure prevailing in the pipe varying --------------------- with the distance) or a simple clock (the distance traveled being function of time).

Le produit de traitement chimique sera habituellement un liquide tel qu'un inhibiteur de corrosion ou un produit anti-dép8ts, mais on peut envisager tout aussi bien d'utiliser le dispositif de l'invention pour injecter des produits piteux ou en particules solides.  The chemical treatment product will usually be a liquid such as a corrosion inhibitor or an anti-deposit product, but it is also possible to envisage using the device of the invention to inject pitiful products or solid particles.

Le dispositif de l'invention, en permettant une injection sélective associée au passage du râcleu autorise une optimisation du traitement chimique de la conduite et une réduction-, dans bien des cas, des quantité de produit(s) à mettre en oeuvre, car la tendance actuelle est d'employer, par précaution, des quantités relativement grandes de produit de traitement. The device of the invention, by allowing a selective injection associated with the passage of the scraper allows an optimization of the chemical treatment of the pipe and a reduction, in many cases, of the quantity of product (s) to be used, because the current trend is to use, as a precaution, relatively large amounts of treatment product.

La description qui va suivre, faite avec références au dessin annexé, fera bien comprendre l'invention. Sur ce dessin
La figure unique est une vue schématique en coupe d'un dispositif selon l'invention.The description which follows, made with references to the appended drawing, will make the invention better understood. On this drawing
The single figure is a schematic sectional view of a device according to the invention.

Sur cette figure, on voit un racleur, désigné par la référence générale 1, comportant un corps 2 sur lequel sont montées deux corolles ou coupelles 3 en polyuréthane destinées à assurer l'étanchéité avec la conduite à racler. Le corps 2 est formé d'un cylindre dont le volume intérieur est divisé en deux chambres 4 et 5 par un piston 6. La chambre 4 sert de réservoir pour le produit de traitement chimique tandis que la chambre 5 loge une bouteille d'air comprimé 7 munie d'une vanne 8. In this figure, we see a scraper, designated by the general reference 1, comprising a body 2 on which are mounted two corollas or cups 3 in polyurethane intended to seal with the pipe to be scraped. The body 2 is formed by a cylinder whose internal volume is divided into two chambers 4 and 5 by a piston 6. The chamber 4 serves as a reservoir for the chemical treatment product while the chamber 5 houses a bottle of compressed air 7 fitted with a valve 8.

La vanne 8 est sous le contrôle d'un programmateur à relais 9 qui est lui-même en relation opérationnelle avec une roulette odométrique 10 continuellement appliquée contre la paroi de la conduite par un petit ressort 11. Pour des raisons de clarté de représentation, on n'a pas illustré la liaison entre la roulette 1Q et le programmateur 9. The valve 8 is under the control of a relay programmer 9 which is itself in operational relation with an odometric roller 10 continuously applied against the wall of the pipe by a small spring 11. For reasons of clarity of representation, we did not illustrate the link between roller 1Q and programmer 9.

Sur le corps 2 sont prévues des buses 12 communiquant avec la chambre 4. Ces buses sont normalement fermées, par exemple par de petits bouchons 15.  Nozzles 12 communicating with the chamber 4 are provided on the body 2. These nozzles are normally closed, for example by small plugs 15.

Le fonctionnement du dispositif de l'invention est très simple. The operation of the device of the invention is very simple.

Dès l'introduction du racleur dans la conduite C, la roulette 10 roule entre la paroi de la conduite et mesure la distance parcourue par le racleur au fur et à mesure-que celui-ci po progresse dans la conduit
Lorsque le racleur a parcouru la distance programmée sur le programmateur 9, celui-ci déclenche l'ouverture de la vanne 8 et l'arrivée d'air comprimé dans la chambre 5. La pression d'air s'applique sur le piston, comprime le produit contenu dans la chambre 4, fait sauter les bouchons 13 et provoque l'éjection du produit de la chambre 4 dans la conduite.As soon as the scraper is inserted into the pipe C, the roller 10 rolls between the wall of the pipe and measures the distance traveled by the scraper as it moves in the pipe.
When the scraper has traveled the distance programmed on the programmer 9, it triggers the opening of the valve 8 and the arrival of compressed air in the chamber 5. The air pressure is applied on the piston, compresses the product contained in the chamber 4, blows up the plugs 13 and causes the ejection of the product from the chamber 4 in the pipe.

Il va de soi que les modes de réalisation décrits ne sont que des exemples et l'on pourrait les modifier, notamment par substitution d'équivalents techniques, sans sortir pour cela du-cadre de l'invention  It goes without saying that the embodiments described are only examples and they could be modified, in particular by substitution of technical equivalents, without departing from the scope of the invention.

Claims (4)

REVENDICATIONS 1. Un racleur pour conduites capable d'injecter sélectivement au moins un produit de traitement chimique en au moins un point ou tronçon prédéterminé d'une conduite, qui comprend un corps (2) sur lequel sont montées des corolles ou coupelles (3) assurant l'étanchéité avec la paroi interne de la conduite, caractérisé en ce que le corps forme réservoir (4) pour le produit de traitement chimique, et en ce qu'il comprend, en outre : au moins un orifice déjection (12) communiquant avec ledit réservoir; des moyens d'éjection (6, 7, 8) du produit de traitement chimique à travers ledit orifice; et des moyens de commande (9) des moyens d'éjection coopérant avec des moyens de mesure (10) de la distance parcourue par le racleur dans la conduite. 1. A scraper for pipes capable of selectively injecting at least one chemical treatment product into at least one predetermined point or section of a pipe, which comprises a body (2) on which corollas or cups (3) are mounted ensuring sealing with the internal wall of the pipe, characterized in that the body forms a reservoir (4) for the chemical treatment product, and in that it further comprises: at least one ejection orifice (12) communicating with said tank; means for ejecting (6, 7, 8) the chemical treatment product through said orifice; and control means (9) ejection means cooperating with means for measuring (10) the distance traveled by the scraper in the pipe. 2. Un racleur selon la revendication 1, caractérisé en ce que le corps est divisé en deux chambres (4, 5) par un piston (6), lZune (4) de ces chambres formant réservoir pour le produit de traitement et l'autre (5) logeant une source (7) d'agent de pression. 2. A scraper according to claim 1, characterized in that the body is divided into two chambers (4, 5) by a piston (6), lZune (4) of these chambers forming a reservoir for the treatment product and the other (5) housing a source (7) of pressure agent. 3. Un receleur selon la revendication 2, caractérisé en ce que la source d'agent de pression comporte une vanne (8) commandée par un programmateur (9) coopérant avec un dispositif de mesure de la distance parcourue par le racleur dans la conduite. 3. A receiver according to claim 2, characterized in that the source of pressure agent comprises a valve (8) controlled by a programmer (9) cooperating with a device for measuring the distance traveled by the scraper in the pipe. 4. Un racleur selon la revendication 3, caractérisé en ce que le dispositif de mesure de la dis- tance parcourue est une roulette odométrique (10)o  4. A scraper according to claim 3, characterized in that the device for measuring the distance traveled is an odometric roller (10) o
FR8309075A 1983-06-01 1983-06-01 SCRAPER FOR INJECTOR OF TREATMENT PRODUCT FOR PIPES Expired FR2546774B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8309075A FR2546774B1 (en) 1983-06-01 1983-06-01 SCRAPER FOR INJECTOR OF TREATMENT PRODUCT FOR PIPES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8309075A FR2546774B1 (en) 1983-06-01 1983-06-01 SCRAPER FOR INJECTOR OF TREATMENT PRODUCT FOR PIPES

Publications (2)

Publication Number Publication Date
FR2546774A1 true FR2546774A1 (en) 1984-12-07
FR2546774B1 FR2546774B1 (en) 1986-06-06

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991017843A1 (en) * 1990-05-18 1991-11-28 Graham Hubert Smith Tube cleaner
AU653725B2 (en) * 1990-05-18 1994-10-13 Graham Hubert Smith Tube cleaner
CN104525536A (en) * 2015-01-06 2015-04-22 天津市瑞德赛恩新材料开发有限公司 Subsea pipeline cleaning method with micro-jet shock wave tube cleaners and cleaning train combined
CN107433273A (en) * 2017-08-08 2017-12-05 中石化河南油建工程有限公司 A kind of discarded crude oil pipeline method for innocent treatment
CN107520727A (en) * 2016-06-22 2017-12-29 贵州盛红科技有限责任公司 A kind of inner-walls of duct rust removalling equipment and its derusting method
CN110216114A (en) * 2019-05-28 2019-09-10 李沫 A kind of oil-field flooding pipe apparatus for eliminating sludge and operating method

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU125972S (en) 1994-10-07 1996-02-28 Tube cleaner
CN111069195A (en) * 2020-02-20 2020-04-28 衢州刚度智能科技有限公司 Hydraulic engineering water pipe internal cleaning machine

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991017843A1 (en) * 1990-05-18 1991-11-28 Graham Hubert Smith Tube cleaner
AU653725B2 (en) * 1990-05-18 1994-10-13 Graham Hubert Smith Tube cleaner
US5437073A (en) * 1990-05-18 1995-08-01 Smith; Graham H. Tube cleaner
CN104525536A (en) * 2015-01-06 2015-04-22 天津市瑞德赛恩新材料开发有限公司 Subsea pipeline cleaning method with micro-jet shock wave tube cleaners and cleaning train combined
CN107520727A (en) * 2016-06-22 2017-12-29 贵州盛红科技有限责任公司 A kind of inner-walls of duct rust removalling equipment and its derusting method
CN107433273A (en) * 2017-08-08 2017-12-05 中石化河南油建工程有限公司 A kind of discarded crude oil pipeline method for innocent treatment
CN110216114A (en) * 2019-05-28 2019-09-10 李沫 A kind of oil-field flooding pipe apparatus for eliminating sludge and operating method

Also Published As

Publication number Publication date
FR2546774B1 (en) 1986-06-06

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