NO312916B1

NO312916B1 - Valve device for blocking oil and / or gas drilling pipes

Info

Publication number: NO312916B1
Application number: NO19992650A
Authority: NO
Inventors: Tarmo Eino Tapani Niinivaara; Tero Tapani Hurtta; Ensi Kyoesti Juhani Niinivaara
Original assignee: Grundstenen Metal Patent Whss
Priority date: 1996-12-16
Filing date: 1999-06-01
Publication date: 2002-07-15
Also published as: ES2196368T3; KR100492807B1; NO992650L; EP0944766A1; PT944766E; JP2002500710A; ATE236342T1; DE69720511T2; EA199900471A1; AU4462197A; KR20000057582A; AU728054B2; JP3920357B2; NO992650D0; WO1998027312A1; EA001253B1; DK0944766T3; EP0944766B1; DE69720511D1

Description

Gjenstanden for oppfinnelsen er en ventilinnretning for blokkering av olje- og/eller gassboringsrør, omfattende en bore-og blokkeringsmekanisme med en ramme montert støttet på olje-og/eller gassboringsrøret som skal blokkeres, idet rammen omfatter en første rammedel som er tverrgående i forhold til rørets retning og anordnet på den første side av røret, og en andre rammedel anordnet på den andre side av røret, rett overfor den første side; et bor som kan roteres hydraulisk for boring gjennom røret, idet boret er anordnet innenfor den første rammedel for bevegelse på tvers i forhold til rørets retning; en blokkeringssylinder for tetting av hullet som bores i røret, der tettesylinderen er anordnet innenfor den første eller den andre rammedel for bevegelse på tvers i forhold til rørets retning, og en anordning for bevegelse av tettesylinderen inn i en tettestilling i hullet som er boret i røret. The object of the invention is a valve device for blocking oil and/or gas drill pipe, comprising a drilling and blocking mechanism with a frame mounted supported on the oil and/or gas drill pipe to be blocked, the frame comprising a first frame part which is transverse in relation to the direction of the tube and arranged on the first side of the tube, and a second frame part arranged on the other side of the tube, directly opposite the first side; a drill which can be hydraulically rotated for drilling through the pipe, the drill being arranged within the first frame member for movement transverse to the direction of the pipe; a blocking cylinder for sealing the hole drilled in the pipe, wherein the sealing cylinder is arranged within the first or the second frame part for movement transverse to the direction of the pipe, and a device for moving the sealing cylinder into a sealing position in the hole drilled in the pipe .

Med denne oppfinnelse stoppes utbruddet av brennende stoff, slik at oljeboringsrøret/-rørene blokkeres på en måte som gjør det mulig å gjenåpne rørene. With this invention, the eruption of burning material is stopped, so that the oil drill pipe(s) is blocked in a way that makes it possible to reopen the pipes.

På nåværende tidspunkt finnes det tre forskjellige måter å forsøke å slokke oljebranner på: Vann sprøytes mot nederste del av flammene, samtidig som brannslokkeren nærmer seg brannen bak et verneskjold og for-søker å stenge oljerørsventilen manuelt. Fremgangsmåten er farlig og krever store mengder vann, noe som ikke alltid er tilgjengelig på brannstedet. At present, there are three different ways of trying to extinguish oil fires: Water is sprayed towards the lower part of the flames, while the fire extinguisher approaches the fire behind a protective shield and tries to close the oil pipe valve manually. The procedure is dangerous and requires large quantities of water, which is not always available at the scene of the fire.

Ved å få brønnen til å eksplodere, vil det midlertidige oksy-genforbruk i det omkringliggende område øke så mye at brannen kveles på grunn av mangel på tilstrekkelig oksygen. Etter dette kan ventilene og annet ødelagt utstyr erstattes. Denne fremgangsmåte er meget farlig. By causing the well to explode, the temporary oxygen consumption in the surrounding area will increase so much that the fire will suffocate due to lack of sufficient oxygen. After this, the valves and other damaged equipment can be replaced. This procedure is very dangerous.

Ved å bore et nytt hull i samme oljebrønn som det brennende oljerøret befinner seg i, og ved å pumpe vann ned i dette, erstattes oljeutbruddet med et vannutbrudd, og brannen slok-kes. Dette er en dyr og tidkrevende operasjon, og resultatet kan ikke garanteres. I tillegg er den farlig å utføre. By drilling a new hole in the same oil well in which the burning oil pipe is located, and by pumping water into it, the oil eruption is replaced by a water eruption, and the fire is extinguished. This is an expensive and time-consuming operation, and the result cannot be guaranteed. In addition, it is dangerous to perform.

Hoveddelene av innretningen ifølge angjeldende oppfinnelse er: en hydraulisk sylinder, et stempel, en boresylinder, en tettesylinder, et bor, en rørklammer, en hydraulisk motor eller annen energikilde, en sperrebolt, en hydraulisk beholder med ledninger og et trykkbatteri, og et automatisk sty-rings- og overvåkingssystem. Tanken er at det inne i hvert olje- og/eller gassboringsrør plasseres en egen boreenhet ifølge rørstørrelsen. Med boreenhet menes bore- og tettemeka- nismen som behøves for å stenge ett olje- eller gassborings-rør. Flere boreenheter kan benytte en felles energikilde med dennes hydrauliske beholder. Under vann, som på offshore boreplattformer, kan vanntrykket styres ved hjelp av en egen mekanisme for bruk i systemet. Trykk kan også skapes ved hjelp av en eksplosjon inne i en massiv sylinder med stempel i begge ender, hvor dette trykk så ledes gjennom en separat, sentral beholder eller direkte inn i den hydrauliske beholder. Trykket kan også tas fra olje- eller gassboringsrøret nedenfor boreenhetene , gjennom et boret hull med tilhørende forbindelse. Det nødvendige antall boreenheter kan installeres, hvilket i eksemplet er tre. The main parts of the device according to the invention in question are: a hydraulic cylinder, a piston, a drilling cylinder, a sealing cylinder, a drill, a pipe clamp, a hydraulic motor or other energy source, a locking bolt, a hydraulic container with lines and a pressure battery, and an automatic sty -call and monitoring system. The idea is that a separate drilling unit is placed inside each oil and/or gas drill pipe according to the pipe size. By drilling unit is meant the drilling and sealing mechanism that is needed to close an oil or gas drill pipe. Several drilling units can use a common energy source with its hydraulic container. Underwater, as on offshore drilling platforms, the water pressure can be controlled using a separate mechanism for use in the system. Pressure can also be created by means of an explosion inside a massive cylinder with a piston at both ends, where this pressure is then directed through a separate, central container or directly into the hydraulic container. The pressure can also be taken from the oil or gas drill pipe below the drilling units, through a drilled hole with an associated connection. The required number of drilling units can be installed, which in the example is three.

Formålet med systemet ifølge denne oppfinnelse er å kontrol-lere olje- og/eller gassbranner, slik at ødeleggelse av stort olje- og/eller gassboringsutstyr kan unngås. Innretningen kan installeres enten i et olje- og/eller gassboringssystem som er under bygging, i et olje- og/eller gassboringssystem som er ferdigbygd, eller til og med i et som står i brann. Fordi innretningen fjerninstalleres og styres automatisk, utgjør oljebrannen ikke en trussel for mennesker når innretningen allerede er installert i oljeboringssystemet på forhånd, og installasjon av innretningen i et system som allerede står i brann, gjør det ikke nødvendig å bevege seg i umiddelbar nær-het av brannen, tvert imot installeres den under grunnen. Så-ledes kan det blant fordelene ved oppfinnelsen nevnes at innretningen og fremgangsmåten er sikre, de skåner miljøet, og * sparer penger og olje eller gass. The purpose of the system according to this invention is to control oil and/or gas fires, so that destruction of large oil and/or gas drilling equipment can be avoided. The device can be installed either in an oil and/or gas drilling system that is under construction, in an oil and/or gas drilling system that has been completed, or even in one that is on fire. Because the device is remotely installed and controlled automatically, the oil fire does not pose a threat to people when the device is already installed in the oil drilling system in advance, and installing the device in a system that is already on fire does not make it necessary to move in the immediate vicinity of the fire, on the contrary, it is installed underground. Thus, among the advantages of the invention, it can be mentioned that the device and the method are safe, they protect the environment, and * save money and oil or gas.

Oppfinnelsen forklares i nærmere detalj nedenfor, med henvis-ning til de vedlagte tegninger. The invention is explained in more detail below, with reference to the attached drawings.

Figur 1 er et tverrsnitt av innretningen med den første boresylinder i bevegelse. Figur 2 er et tverrsnitt av innretningen med den første tettesylinder på plass. Figur 3 er et tverrsnitt av innretningen med alle tre tette-sylindere på plass. Figur 4 er et tverrsnitt av den halvkuleformede sylinder. Figur 5 er et deltverrsnitt av den kjegleformede sylinder med slipeflaten. Figur 6 er et deltverrsnitt av den kjegleformede sylinder med fremstikkende blad. Figur 7 viser innretningen installert, og er et deltverrsnitt av den hydrauliske beholder. Figuren viser ikke oppbygningen av rommet som er konstruert under grunnen, hvor innretningen befinner seg. Figur 8 er et bilde som detaljert viser rørklammeren og den låste sperrebolt. Figur 9 viser en anvendelse hvor boresylinderen og tettesylinderen (som imidlertid ikke er tegnet inn på figuren) er i drift, med start fra samme side av olje- og/eller gassbo-ringsrøret, og de ovennevnte sylindre styres av og kuttesøm-men tettes ved hjelp av en pakkboks. På figuren har pakkboksen på høyre side ikke blitt skrudd til. Figure 1 is a cross-section of the device with the first drill cylinder in motion. Figure 2 is a cross-section of the device with the first sealing cylinder in place. Figure 3 is a cross-section of the device with all three sealing cylinders in place. Figure 4 is a cross section of the hemispherical cylinder. Figure 5 is a partial cross-section of the cone-shaped cylinder with the grinding surface. Figure 6 is a partial cross-section of the cone-shaped cylinder with a protruding blade. Figure 7 shows the device installed, and is a partial cross-section of the hydraulic container. The figure does not show the structure of the room constructed below the ground, where the device is located. Figure 8 is a picture showing in detail the pipe clamp and the locked locking bolt. Figure 9 shows an application where the drilling cylinder and the sealing cylinder (which, however, are not drawn in the figure) are in operation, starting from the same side of the oil and/or gas drill pipe, and the above-mentioned cylinders are controlled by and the cutting seam is sealed by using a packing box. In the figure, the packing box on the right has not been screwed on.

På figurer 1, 2 og 3 er tanken at det på høyre side av olje-og/eller gassboringsrørene og tettesylinderen er en lignende skyve- og/eller rotasjonsmekanisme som på venstre side av olje- og/eller gassboringsrørene. Det er også formålstjenlig, idet det avvikes fra tegningene, at boreenheter som opererer etter hverandre, plasseres på motsatte sider av olje- og/ eller gassboringsrørene, slik at suksessiv boring, så vel som tetting utføres med start på motsatte sider av rørene. Dersom tre eller flere boreenheter er plassert rundt de samme olje-og/eller gassboringsrør, kan hver av disse plasseres slik at de startes fra fullstendig forskjellige retninger, for derved å gjøre det mulig å begrense resultantkraften som virker på rørene som en følge av boringen og tettingen, til et minimum. In figures 1, 2 and 3, the idea is that on the right side of the oil and/or gas drill pipes and the sealing cylinder there is a similar sliding and/or rotation mechanism as on the left side of the oil and/or gas drill pipes. It is also expedient, deviating from the drawings, that drilling units that operate one after the other are placed on opposite sides of the oil and/or gas drill pipes, so that successive drilling, as well as sealing, is carried out starting on opposite sides of the pipes. If three or more drilling units are located around the same oil and/or gas drill pipes, each of these can be positioned so that they are started from completely different directions, thereby making it possible to limit the resultant force acting on the pipes as a result of the drilling and the seal, to a minimum.

Når innretningen startes, strømmer trykket i trykkbatteriene 10 inn i den hydrauliske beholder 11, og trykket i denne starter driften av den hydrauliske motor 8 og ventilen. Olje strømmer inn i den hydrauliske sylinder 1 som skyver stemplet 2, og stemplet skyver boret 5 og boresylinderen 3 fremover. Når boresylinderen 3 har gått langt nok inn, det vil si gjennom oljeboringsrørene 7, gir den mekaniske reverseringsventil instruks til boret 5 og boresylinderen 3 om å returnere, og gir videre instruks til tettesylinderen 4 om å utføre tettingen. Tettesylinderen 4 kan også plasseres bak boresylinderen 3, i hvilket tilfelle det kun er behov for bevegelse i én retning. Når alle boreenheter har vært i operasjon, kan også låsebolten lukkes om nødvendig. Dette gjøres hydraulisk, eller ved hjelp av sprengstoff. Tettesylindrene kan enten drives gjennom kun å skyves, eller de kan være utstyrt med en rotasjonsmotor, for eksempel for sliping. På tidspunktet for tettingen eller etter tettingen, kan i tillegg et trykksatt brannslokningsmiddel, som for eksempel flytende nitrogen, føres inn i gass- eller oljeboringsrøret. Dette tilføres gjennom et hull som er boret i olje- eller gassboringsrøret ved hjelp av en innretning som for eksempel boresylinderen 3. Alt dette kan gjøres uten elektrisk strøm, ved hjelp av tvungen styring, i hvilket tilfelle operasjonen ikke kan stanses når den først er satt i gang. Innretningen festes rundt oljerørene ved hjelp av en rørklammer 6 og støttes gjennom underlaget. Ved å tette rør av forskjellige stør-relser hver for seg, forhindres de øverste rørene fra å falle. Ved å installere mufferør i stedet for de avkuttede rør, og ved å trekke pluggene ut igjen, kan boresystemet gjøres driftsklart igjen. When the device is started, the pressure in the pressure batteries 10 flows into the hydraulic container 11, and the pressure in this starts the operation of the hydraulic motor 8 and the valve. Oil flows into the hydraulic cylinder 1 which pushes the piston 2, and the piston pushes the drill 5 and the drill cylinder 3 forward. When the drill cylinder 3 has gone far enough in, i.e. through the oil drill pipes 7, the mechanical reversing valve instructs the drill 5 and the drill cylinder 3 to return, and further instructs the sealing cylinder 4 to carry out the sealing. The sealing cylinder 4 can also be placed behind the drilling cylinder 3, in which case there is only a need for movement in one direction. When all drilling units have been in operation, the locking bolt can also be closed if necessary. This is done hydraulically, or with the help of explosives. The sealing cylinders can either be driven by pushing only, or they can be equipped with a rotary motor, for example for grinding. At the time of sealing or after sealing, a pressurized fire extinguishing agent, such as liquid nitrogen, can also be introduced into the gas or oil drill pipe. This is supplied through a hole drilled in the oil or gas drill pipe by means of a device such as the drill cylinder 3. All this can be done without electric current, by means of forced control, in which case the operation cannot be stopped once set Started. The device is fixed around the oil pipes using a pipe clamp 6 and supported through the substrate. By sealing pipes of different sizes separately, the top pipes are prevented from falling. By installing sleeve pipes in place of the cut pipes, and by pulling the plugs out again, the drilling system can be made operational again.

Følgende anvendelse kan benyttes for å blokkere det ytre olje- eller gassboringsrør, og forklaringen henviser hoved-sakelig til figur 9: I tillegg til de deler av oppfinnelsen som er nevnt tidlig-ere, inkluderer oppfinnelsen også en pakkboks 14, en strammer 15, blokkeringslåser 16, et glidelager (for eksempel et krombånd) 17, en trykkoljepakning 18, et låsespor 19 og et rammespor 20. Den ende av pakkboksen 14 som vender mot olje- eller gassboringsrøret, er formet som utsiden av det angjeldende rør, og er meget skarp. Denne strammes på plass ved hjelp av et glidelager 17 og en strammer 15 med utvendig gjenging til-passet den innvendige gjenging i rammen 12 på innretningen, enten manuelt under installasjon eller ved hjelp av en auto-matisert mekanisme når innretningen startes. Et låsespor 19 er laget rundt strammeren 15 på pakkboksen, inn i hvilket blokkeringslåsene 16, som trekkes til rammen 12 ved hjelp av fjærer/fluidtrykk, skyves når strammeren på pakkboksen er blitt skjøvet inn til nødvendig dybde. I tillegg er det laget et rammespor 20 i rammen 12 på innretningen, hvilket sammen med strammeren 15 på pakkboksen har som formål å forhindre at pakkboksen 14 løsner når den har nådd den faste dybde. Hen-sikten med pakkboksen 14, som er blitt strammet på plass og er meget skarp i enden mot olje- eller gassboringsrøret 7, og som er laget av et meget hardt materiale, er å tette kutte-sømmen i olje- eller gassboringsrøret 7 som bores og tettes, og å styre bevegelsen til bore-tettekombinasjonen 3-4 som be-veger seg inne i dette. Sømmen mellom pakkboksen 14 og akselen 13 tettes ved hjelp av en trykkoljepakning. Etter som boringen fortsetter, etterlates de deler som bores løs fra olje- eller gassboringsrøret 7, i bore-tettekombinasjonen 3-4. The following application can be used to block the outer oil or gas drill pipe, and the explanation mainly refers to Figure 9: In addition to the parts of the invention mentioned earlier, the invention also includes a stuffing box 14, a tensioner 15, blocking locks 16, a sliding bearing (for example a chrome band) 17, a pressure oil seal 18, a locking groove 19 and a frame groove 20. The end of the packing box 14 which faces the oil or gas drill pipe is shaped like the outside of the relevant pipe, and is very sharp . This is tightened in place by means of a sliding bearing 17 and a tensioner 15 with external threading adapted to the internal threading in the frame 12 of the device, either manually during installation or by means of an automated mechanism when the device is started. A locking groove 19 is made around the tensioner 15 on the stuffing box, into which the blocking locks 16, which are drawn to the frame 12 by means of springs/fluid pressure, are pushed when the tensioner on the stuffing box has been pushed in to the required depth. In addition, a frame groove 20 has been made in the frame 12 of the device, which, together with the tensioner 15 on the packing box, has the purpose of preventing the packing box 14 from loosening when it has reached the fixed depth. The purpose of the stuffing box 14, which has been tightened in place and is very sharp at the end towards the oil or gas drill pipe 7, and which is made of a very hard material, is to seal the cutting seam in the oil or gas drill pipe 7 being drilled and is sealed, and to control the movement of the drill-seal combination 3-4 which moves inside this. The seam between the stuffing box 14 and the shaft 13 is sealed by means of a pressurized oil seal. As the drilling continues, the parts that are drilled loose from the oil or gas drill pipe 7 are left in the drill-seal combination 3-4.

Overvåkning og styring av ventilen kan gjøres: Monitoring and control of the valve can be done:

1. Ved bruk av kjente fremgangsmåter fra prosess- og automa-tiseringsteknologi. 2. Ved å måle forandringer i systemets magnetfelt ved hjelp av elektrisk følere. Disse forandringer forårsakes for eksempel av forandringer i de følgende størrelser: gjen-nomstrømningsmengde, strømningsretning, temperatur, trykk, stabilitet. Forandringer som finner sted i magnetfeltet, fanges opp elektrisk ved hjelp av forandringer i flere motstander som styres av transistorer og integreres ved hjelp av datamaskin, og betjeningen av ventilen styres ved hjelp av grenseverdiene som er kodet inn i data-maskinen. Undervannsomgivelsene rundt ventilen og endringer i disse, kan også overvåkes gjennom denne fremgangsmåte, og enhver observasjon, som for eksempel en terrortrussel, meldes videre til overvåknings- og styringsterminalen. 3. Ved å analysere og samordne størrelser, som for eksempel temperatur, trykk, omdreiningshastighet og bevegelseshas-tighet, og endringer i disse målt ved hjelp av følere i enden av boret og på akselen. 1. Using known methods from process and automation technology. 2. By measuring changes in the system's magnetic field using electrical sensors. These changes are caused, for example, by changes in the following quantities: flow rate, flow direction, temperature, pressure, stability. Changes that take place in the magnetic field are captured electrically by means of changes in several resistors that are controlled by transistors and integrated by means of a computer, and the operation of the valve is controlled by means of the limit values coded into the computer. The underwater environment around the valve and changes in these can also be monitored through this method, and any observation, such as a terrorist threat, is reported to the monitoring and control terminal. 3. By analyzing and coordinating quantities, such as temperature, pressure, rotational speed and speed of movement, and changes in these measured using sensors at the end of the drill and on the shaft.

For styring av ventilen kan det benyttes: The following can be used to control the valve:

1. Uavhengige ventilstyreanordninger med elektrisk forbindelse; det er kun behov for én instruks for å stenge ventilen. 2. Direkte eller indirekte styring fra den hydrauliske ventil. 3. En hydraulisk ventil drevet ved hjelp av trykklufttek-nikk. 1. Independent valve control devices with electrical connection; only one instruction is needed to close the valve. 2. Direct or indirect control from the hydraulic valve. 3. A hydraulic valve operated using compressed air technology.

Funksjonene kan forbindes enten manuelt eller automatisk, i hvilket tilfelle systemet startes ved sikkerhetsutløsning av det uavhengig avstengende system. Som målestørrelser kan brukes temperatur, gassinnhold, trykk, gjennomstrømning, støt, mekanikk, elektroteknikker eller andre lignende størrelser som automatisk gir ventilen instrukser, også når det ikke er mulig for et menneske å gjøre dette. The functions can be connected either manually or automatically, in which case the system is started by safety tripping of the independent shutdown system. Temperature, gas content, pressure, flow, impact, mechanics, electrical techniques or other similar quantities that automatically give the valve instructions, even when it is not possible for a human to do this, can be used as measurement quantities.

Driftsindikerende følere kan installeres på ventilen, for å vise ventilens driftstilstand. 1. En trykkføler i den hydrauliske beholder, hvor denne viser at ventilen er satt i drift, og angir arbeids-trykket i oljen. 2. Et måleinstrument som viser oljemengde, og angir bevegel-sesavstand: - mengden av olje som går inn i sylinderen, angir beve-gelsesavstanden - trykkføleren på retursiden av sylinderen viser gangen i returbevegelsen. Operation indicating sensors can be installed on the valve, to show the valve's operating condition. 1. A pressure sensor in the hydraulic container, where this shows that the valve has been put into operation, and indicates the working pressure in the oil. 2. A measuring instrument that shows the amount of oil and indicates the movement distance: - the amount of oil that enters the cylinder indicates the movement distance - the pressure sensor on the return side of the cylinder shows the time in the return movement.

3. Trykkføleren i tettesylinderen viser tettebevegelsen. 3. The pressure sensor in the sealing cylinder shows the sealing movement.

4. Føleren som angir borrotasjon, befinner seg på borakse-len. 5. En føler plassert i enden av boret kan måle de vanligste størrelsene. 4. The sensor that indicates drill rotation is located on the drill shaft. 5. A sensor placed at the end of the drill can measure the most common sizes.

Automatisk databehandling gjør bruk disse størrelsene for å danne et bilde som i detalj viser ventilfunksjonen på data-terminalen. Automatic data processing makes use of these sizes to form an image that shows in detail the valve function on the data terminal.

Claims

1. Valve device for blocking oil and/or gas drill pipes, comprising a drilling and blocking mechanism with a frame (12) mounted supported on the pipe (7) to be blocked, the frame (12) comprising a first frame part which is transverse relative to the direction of the pipe and arranged on the first side of the pipe, and a second frame part arranged on the other side of the pipe, directly opposite the first side; a drill (5) which can be hydraulically rotated for drilling through the pipe, the drill being arranged within the first frame part for movement transverse to the direction of the pipe; a blocking cylinder (4) for sealing the hole that is drilled in the pipe, where the sealing cylinder is arranged within the first or the second frame part for movement transversely in relation to the direction of the pipe, and a device for moving the sealing cylinder (4) into a sealing position in the hole that is drilled in the pipe, characterized in that the drilling and blocking mechanism comprises packing boxes (14) made of a hard material, where these are arranged inside the first frame part and the second frame part between said frame part and the drill and the sealing cylinder, for controlling the movements of the drill and the sealing cylinder, as the packing boxes have sharp front ends facing the pipe, which front ends are shaped according to the outer wall of the pipe, and the packing boxes can be moved in the guide on said frame part, in a transverse direction towards the pipe from opposite sides of the pipe, for sealing the sealing seam on the tube; tensioners (15) for pushing the stuffing boxes against the pipe; and a locking device (16, 19, 20) for locking the tensioners in a fixed position in relation to the frame parts.

2. Valve device as specified in claim 1, characterized in that the guide device on the frame (12) is provided with internal threads, and the tensioner (15) is provided with external threads for cooperation with said internal threads.

3. Valve device as stated in claim 1 or 2, characterized in that a sliding bearing (17), preferably a chrome band, is arranged between the tensioner (15) and the packing box (14).

4. Valve device as stated in any one of claims 1 to 3, characterized in that the locking device comprises a frame groove (20) in the cylindrical inner surface of the frame part, spring-loaded blocking locks (16) in the frame groove (20), and a locking groove (19) around the outer surface of the tensioner (15) to receive the locking latches.

5. Valve device as stated in any one of claims 1 to 4, characterized in that the drilling and blocking mechanism comprises a pressure oil seal (18) for sealing between the shaft (13) which rotates the drill (15) and the packing box (14).

6. Valve device as stated in any one of claims 1 to 5, characterized in that the valve device comprises a plurality of drilling and blocking mechanisms arranged consecutively along the pipes (7), and that the drilling directions of the drills (5) are opposite to each other for every other adjacent drilling and blocking mechanism.

7. Valve device as specified in claim 6, characterized in that the blocking directions of the sealing cylinders (4) are opposite to each other for every other adjacent drilling and blocking mechanism.

8. Valve device as stated in any one of claims 1 to 7, characterized in that the valve device comprises three or more drilling and blocking mechanisms.

9. Valve device as stated in any one of claims 1 to 8, characterized in that the drilling and blocking mechanism comprises a shaft (13) with a drilling cylinder (3) equipped with a drill (5), an energy source for rotation of the shaft (13 ), a piston (2) attached to the shaft (13), and a hydraulic cylinder (1) for movement of the piston and the shaft in the axial direction: and/or that the valve device comprises pipe clamps (6), a locking bolt (9), a pressure battery ( 10), a hydraulic container (11) with lines, a mechanism for utilizing hydrostatic pressure, and/or an automatic control and monitoring system.

10. Valve device as stated in any one of claims 1 to 9, characterized in that the tip of the drill cylinder (3) is spherical and equipped with a blade that is pushed forward and retracted by means of hydraulics, whereby the drill cylinder (3) also functions as the sealing cylinder (4).

11. Valve device as stated in any one of claims 1 to 10, characterized in that the drill cylinder (3) is cone-shaped and is equipped with a dynamic drill size regulator, and that the sealing cylinder (4) is cone-shaped.

12. Valve device as specified in any one of claims 1 to 11, characterized in that the sealing cylinder (4) is hollow and can be locked using oil pressure or explosives.

13. Valve device as stated in any one of claims 1 to 12, characterized in that the drill cylinder (3) is a cylinder with a blade at the tip.

14. Valve device as stated in any one of claims 1 to 13, characterized in that the drill (5) is arranged in the middle of the tip of the drill cylinder

15. Valve device as stated in any one of claims 9 to 14, characterized in that the drilling cylinder (3), the sealing cylinder (4) and the drill (5) are arranged to receive energy for forward movement from pressure batteries (10), through the piston ( 2), the shafts (13), the hydraulic cylinder (1) and the hydraulic container (11), in addition to the lines.

16. Valve device as stated in any one of claims 9 to 15, characterized in that the drill cylinder (3) and the drill (5) are arranged to receive energy for rotational movement from pressure batteries (10), through the piston (2), the shafts (13) ), the hydraulic motor (8) which is used as an energy source, the hydraulic container (11), and the lines.

17. Valve device as specified in any one of claims 9 to 16, characterized in that the pipe clamps (6) have a two-part construction in order to be mounted around the pipe from the sides.

18. Valve device as specified in any one of claims 9 to 17, characterized in that the inside of the pipe clamp (6) is cone-shaped and provided with threading.

19. Valve device as stated in any one of claims 9 to 18, characterized in that the locking bolt (9) can be locked in place by means of explosives or by means of hydraulics.

20. Valve device as stated in any one of claims 9 to 19, characterized in that the locking bolt (9) is wider than the outermost oil and/or gas drill pipe (7), and has a tapering, V-shaped tip.

21. Valve device as stated in any one of claims 1 to 20, characterized in that the drilling cylinder (3) and the sealing cylinder (4) have an external diameter that is greater than the internal diameter of the oil or gas drill pipe (7) to be blocked, and less than the outside diameter of the oil or gas drill pipe to be blocked.

22. Valve device as specified in any one of claims 1 to 21, characterized in that the blade on the drilling cylinder (3) is arranged so that it is brought out by means of mechanics and/or hydraulics when the drilling cylinder (3) starts to rotate, and is pulled back into the drill cylinder (3) by means of mechanics and/or hydraulics when the direction of rotation changes.

23. Valve device as stated in any one of claims 1 to 22, characterized in that the outside of the drill cylinder (3) has a grinding surface.

24. Valve device as stated in any one of claims 1 to 23, characterized in that the drill cylinder (3) is arranged so that it functions as a sealing cylinder (4), and that expansion of the drill cylinder is done hydraulically or by using explosives.

25. Valve device as specified in any one of claims 1 to 24, characterized in that the drilling cylinder (3) and the sealing cylinder (4) are both located on the same side of the oil and/or gas drill pipes (7), or on opposite sides.

26. Valve device as stated in any one of claims 1 to 25, characterized in that the drilling units are placed on opposite sides of the oil and/or gas drill pipes, so that successive drilling operations are carried out starting from different sides of the oil and/or gas drill pipes , like the sealing operations in this case.

27. Valve device as stated in any one of claims 1 to 26, characterized in that the valve can also be installed in an oil and/or gas drilling system which is controlled by means of a so-called membrane plate.

28. Valve device as stated in any one of claims 1 to 27, characterized in that the hydrostatic pressure in underwater conditions is transformed into energy for use in the system by means of a separate mechanism.

29. Valve device as stated in any one of claims 1 to 28, characterized in that the valve device includes a device for measuring changes in the system's magnetic field, for continuous monitoring of the oil and/or gas drilling units in addition to the surroundings, and for implementing required actions as a result of these changes.

30. Valve device as specified in claim 29, characterized in that the changes in the magnetic field can be measured electrically, the changes being due to changes in flow rate, flow direction, temperature, pressure, stability or surrounding material.

31. Valve device as specified in claim 30, characterized in that electrical observation is arranged by means of resistors and changes in these and transistors, the observations being collected by a computer.

32. Valve device as specified in claim 31, characterized in that the information collected by means of these measuring instruments and collected in the computer is integrated into coded limit values which are arranged to control the operation of the valve, and to be transferred to the monitoring and control terminal.

33. Valve device as set forth in any one of claims 1 to 32, characterized in that the pressure arising from an explosion inside the massive cylinder is arranged so that it is transformed through lines into energy for use in the system.

34. Valve device as stated in claim 33, characterized in that the air pressure caused by the explosion is either fed directly into the hydraulic container (11), or through a separate, central container.

35. Valve device as specified in claim 33 or 34, characterized in that the massive cylinder comprises two axially parallel pistons in the massive cylinder, placed on different sides of the explosive.

36. Valve device as specified in any one of claims 1 to 35, characterized in that it is arranged so that the necessary energy can be taken out below the oil or gas drill pipe, through a separate connection from the underpressure or overpressure created in the drilled hole.

37. Valve device as specified in any one of claims 1 to 36, characterized in that the valve device is operated or controlled via computer programs, and by means of integration of quantities such as flow rate, flow direction, temperature, pressure, stability and material, measured using sensors and other measuring instruments placed in different areas of the facility and its surroundings.

38. Valve device as specified in any one of claims 1 to 37, characterized in that the information received through various sensors and other measuring instruments regarding the device's maintenance needs and the sealing process is arranged so that it is transmitted to the control room by means of a computer and satellite.

39. Valve device as stated in any one of claims 1 to 37, characterized in that at the time of the sealing or after the sealing, a pressurized fire extinguishing agent is used, such as liquid nitrogen to extinguish the fire, where this is arranged so that it is supplied through a hole drilled from above the sealing unit or units, through a separate connection.