EP0232268A1 - Dispositif de controle du verrouillage d'un tube carottier. - Google Patents
Dispositif de controle du verrouillage d'un tube carottier.Info
- Publication number
- EP0232268A1 EP0232268A1 EP85904786A EP85904786A EP0232268A1 EP 0232268 A1 EP0232268 A1 EP 0232268A1 EP 85904786 A EP85904786 A EP 85904786A EP 85904786 A EP85904786 A EP 85904786A EP 0232268 A1 EP0232268 A1 EP 0232268A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drilling
- ring
- cylindrical body
- pressure
- drilling fluid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005070 sampling Methods 0.000 title 1
- 238000005553 drilling Methods 0.000 claims description 69
- 239000012530 fluid Substances 0.000 claims description 29
- 239000007788 liquid Substances 0.000 claims description 24
- 238000002347 injection Methods 0.000 claims description 18
- 239000007924 injection Substances 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 230000007423 decrease Effects 0.000 claims description 2
- 238000011084 recovery Methods 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims 3
- 230000001276 controlling effect Effects 0.000 claims 2
- 238000009434 installation Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 239000000725 suspension Substances 0.000 description 5
- 244000000626 Daucus carota Species 0.000 description 3
- 235000002767 Daucus carota Nutrition 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 1
- 230000009189 diving Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/04—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion
- E21B23/0413—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion using means for blocking fluid flow, e.g. drop balls or darts
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
- E21B25/02—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors the core receiver being insertable into, or removable from, the borehole without withdrawing the drilling pipe
Definitions
- the present invention relates to a device for controlling the locking of a cable sounder corer for a wet well, comprising an outer tube through which slides an inner tube consisting of a hooking head and a cylindrical body provided a hydraulic seal with the outer tube, a valve for adjusting the liquid pressure ⁇ drilling and locking means relative to the outer tube, consisting of a lock holder, an unlocking slide - lage secured to the attachment head and a pin which releases out of an annular blocking groove, the lugs of the aforementioned lock, under the effect of a traction by means of the operating cable and the piece of repechage on the hooking head.
- It also relates to a method for controlling the locking of a cable borehole sampler, using the device described above.
- the drilling liquid is freely launched at the bottom of a wet well, under possible injection by means of a pump, in order to accelerate the descent and save time, and one rises to the surface, after the coring operation, using a fishing piece and a cable, an inner tube.
- a cable core sampler comprising a valve for adjusting the flow rate of drilling fluid, allowing to detect from the surface, the precise moment of locking of the corer in the coring position, in wet or dry hole.
- the adjustable control valve comprises a spherical obturator in a body formed by a sleeve consti ⁇ tutive of the head of the inner tube.
- the spherical shutter is applied elastically against an annular seat by a return spring bearing downwardly on an adjustment washer d which can be placed axially in the body,
- the operator has, in the adjustable control valve, for deep drilling, a particularly simple, fast and effective means of knowing when and if the inner tube is in the correct position. for drilling and coring. For this purpose, it suffices to follow the pressure indicated at the pump without stopping a conch-type engine.
- the present invention aims to remedy the aforementioned drawback and proposes a device for controlling the locking of a cable sounder corer for a wet well, comprising an outer tube through which slides an inner tube consisting of a head d 'hanger and a cylindrical body provided with a hydraulic seal with the outer tube, a valve ⁇ é ⁇ zg ⁇ cfe ledi pressuredi liquid cfe drilling etcfe locking means relative to the outer tube, consisting of a latch holder, an unlocking slide soli ⁇ darrise to the latching head and a pin which releases outside of an annular blocking groove, the legs of the aforementioned lock, under the effect of a traction by means of the operating cable and the fishing piece on the hooking head, characterized in that it comprises a bistable eclipsable lock, which, when pushed to a lower position by hydraulic pressure by means of the drilling fluid injection pump, ensures the hydraulic sealing of the inner tube with the outer tube, when said pressure of the drilling fluid drilling exceeds a predetermined value and allows
- said lock consists of a slide ring which can be slid outside ⁇ along a cylindrical body integral with the hooking head, said ring comprising a keeper having two uneven converging arms, playing the role of slides, in which is guided and made in turn prisoner, a lug secured to the above cylindrical body which occupies, under the action of a spring acting on the base of the ring and bearing against a body adjusting nut cylindrical when the injection of drilling fluid is interrupted, an upper rest position in which a lateral orifice of the above-mentioned ring is closed by the cylindrical body.
- the invention also relates to a method for controlling the locking of a cable borehole sampler, using the device described above.
- This process is essentially characterized in that the abovementioned ring first occupies, during the descent of the core barrel, under the action of the hydraulic pressure of the drilling fluid, a stable intermediate position, in which the lateral orifice is closed. by the cylindrical body, so as to prevent the circulation of the drilling fluid towards the drilling crown, whatever the hydraulic pressure applied and accelerate the descent of the inner tube as a function of the drilling fluid flow injected
- 3a ring of which the piston-shaped ring-shaped annular segment around the cylindrical body moves against a spring acting on the base 3a ring — drawer and taking ⁇ çpuL against an adjusting nut of the cylindrical body towards a lower position of rest in which the lug is at the top of the keeper and occupies a position which allows to release at the same time as the bolt clip-on, passage of drilling fluid.
- Figures 1, 2 and 3 are sections of successive sections of a core barrel device, provided with a locking control device according to the invention;
- - Figure 4 shows a section of the locking control device in the intermediate position, as provided for the descent of the corer;
- FIG. 5 is a view similar to those of Figures 4, the control device during a ver ⁇ rusting test;
- FIG. 6 is a view similar to those of Figures 4 to 5, of the control device during a coring ocher ⁇ ration;
- FIG. 7 is a cross-sectional view along line VI-VI 'of the device shown in Figure 6;
- FIGS. 8 to 16 illustrate the successive changes in the drilling liquid in the core barrel device shown in FIGS. 1 to 3.
- Figures 1 to 3 illustrate a first mode of réali ⁇ tion of the device for installing the inner tube of a core barrel device according to the invention.
- a double cable core barrel designated as a whole by the reference number 1, comprises an external tube 1, provided in principle with a sounding ring 2 and an internal tube 3 axially slidable in the outer tube 1 and equipped at its base with a carrot extractor sleeve 4.
- the inner tube 3 is freely launched into the outer tube 1.
- the inner tube 3 is suspended in the outer tube 1 by a flange annular 5 s » ap ⁇ phenomenon on a suspension ring 5 1 of the outer tube 1. It comprises a tubular latch holder 6 and a hooking head 7 having at its top a truncated hook 8 and a cone-guide 9 arranged below the hook 8.
- the hooking head 7 is connected by a diametric pin 10 to a rusting slide 11 which has a diametrical slot 12 and two elongated openings 13 diametrically opposite.
- the unlocking slide 11 carries an unlocking pin 14 extending perpendicularly through the slot 12 below the openings 13.
- the unlocking pin 11 can slide relative to the lock holder 6. It also carries a safety pin 20 intended to avoid any untimely unlocking during the operation of the Jbra operation.
- This latch holder houses a latch 15 made up of two locking lugs 1 ⁇ and 17 flat, parallel and housed in the diametrical slot 12.
- the lugs 1 ⁇ and 17 pivot together around a diametral pivot 18 which passes through the corresponding elongated openings 13 above and whose ends are fixed to the tubular lock holder 6.
- the lock holder 6 has two unlocking recesses 19 "which are diametrically opposite and located opposite -screw of the diametrical slot 12.
- the latch holder 6 On its outer face, the latch holder 6 has a circumferential hooking groove 21 near its end upper mite 22 also chamfered.
- the lock holder 6 is made integral with the remaining lower part of the inner tube 3 by a pin 2.
- the slide 11 can coulis ⁇ slightly relative to the lock holder 19 in particular - thanks to the possibility of sliding the pivot 18 in the elongated openings 13 above.
- the lugs 16 and 17 of the latch 15 are constantly biased by a spring 24, to be moved apart one of the other and distant together from the longitudinal axis common to the inner tube 3 and the outer tube 1.
- a space is provided between the outer tube 1 and the inner tube 3 to supply the lower core area with cooling water which not only allows the evacuation of calories, but also that of probing debris.
- the water passage channel included in the inner tube 3 includes an adjustable 2 ⁇ control valve cfe the pressai of water supplied under the action of an injection pump not shown, installed on the surface.
- the adjustment of the aforementioned 2 ⁇ valve is carried out using an adjustment screw 27 with a hexagonal head 28 mounted in the cylindrical body 33 and makes it possible to move axially in height inside the inner tube 3, a washer 29 so as to more or less compress the return key spring 30 and thus adjust the return force of said spring 30.
- the return force of the spring 30 is adjusted as a function of the conditions of the coring operations, so as to allow the opening of the valve 26 as soon as a predetermined water pressure selectively in full knowledge of the exact conditions of the coring operations, in particular the depth of drilling, is reached.
- the locking control device comprises a bistable eclipsable lock which, when pushed towards a lower position by higher hydraulic pressure at the calibration value of the spring 30, by means of the drilling liquid injection pump, ensures the hydraulic seal of the cylindrical body 33 with the outer tube 1 and allows the drilling liquid to arrive in a chamber delimited by the ring-iroir 32 of the bistable eclipsable lock 31.
- the thrust of the drilling fluid is maintained at a value less than the setting force of the spring 38 but greater than the return force of the spring 30 necessary for the opening of the valve for adjusting the pressure of the drilling fluid.
- said latch 31 is made up of a drawer ring 32 which can be slid outwardly along a cylindrical body 33 secured to the hooking head 7 " said drawer ring 32 comprising a keeper 34 having two uneven converging arms 35 ” 36, playing the role of slides, in which is guided and taken in turn prisoner, a lug 37 secured to the above-mentioned cylindrical body 33, capable of occupying three extreme positions, corresponding to lowering, locking indication and drilling operations.
- the aforementioned drawer ring 32 firstly occupies, during the descent of the inner tube of the core barrel, under the action of the hydraulic pressure of the drilling fluid on a segment 32 ′, a stable intermediate position, in which each lateral orifice 40 is closed by the cylindrical body 33, so as to prevent the circulating of the drilling liquid towards the drill bit 2, whatever the hydraulic pressure applied (FIG. 4).
- the ring 32 When the pressure of the drilling fluid is then increased, the ring 32, the segment 32 'of which forms a sealing piston around the cylindrical body 33, provided with a seal 33', moves against the spring 38 acting sant on the base of the drawer ring 32 and bearing against an adjusting nut 39 of the cylindrical body 33 to a lower position of rest in which each side port 40 above is closed (Figure 5).
- a permanent increase in pressure can be easily detected on the surface by the pressure gauge. It indicates that the inner tube 3 of the core barrel seals in a sealed manner by an annular flange 5 on the suspension ring 5 ′ of the outer tube 1 and that the drawer ring 32 is pushed back into the sealed lower position.
- the spring 38 By interrupting the injection of the drilling liquid, the spring 38 is allowed to move the ring 32 to an upper, so-called drilling, rest position, in which the lug 37 is located at the foot of the keeper 34 and the orifice lateral 40 is arranged in front of a window 40 ′ of the cylindrical body 33 and allows the circulation of drilling liquid towards the drilling crown 2 as soon as the pressure is sufficient to overcome the return force of the spring 30 of the adjustment valve 26 ( Figure 6).
- Figures 8 to 10 show where the drilling fluid moves in the core drilling device, during the descent of the latter into the borehole.
- the drilling fluid is injected using the injection pump into the drill string.
- the displacement of the column of drilling liquid downwards contributes to accelerating the descent of the inner tube 3 of the core barrel in the drill string.
- the inner tube 3 of the corer comes to rest in a sealed manner on the ring 5 f of suspension. And the locking of the inner tube of the corer is effected by spacing of the lugs 16, 17 of the latch 15.
- FIGS. 11 to 13 The progression of the drilling fluid in the chamber delimited by the drawer ring 32 of the bistable eclipsable latch 31 is illustrated in FIGS. 11 to 13.
- FIG. 12 shows how the column of drilling fluid is stopped by the bistable eclipsing latch 31. * • - •%,
- each lateral orifice 40 is opposite a window 40 ′ of the cylindrical body 33
- the operator while letting the pump run, discharges the fluid in the open air drilling by a valve with two outputs.
- the return spring 35 is allowed to push the ring 32 towards the so-called upper drilling position.
- the drilling fluid is thus allowed to flow between the inner tube and the outer tube of the core barrel towards the drill bit.
- FIGS. 11 to 16 The progression of the drilling liquid towards the drilling column 2 is illustrated in FIGS. 11 to 16.
- the recovery of the inner tube 3 of the core barrel device is carried out in a known manner by lowering an overshot into the outer tube 1, using a cable.
- the locking control device signals in a precise, durable and verifiable manner, the locking of the inner tube, which makes it possible to ensure that the latter has been carried out normally, while known systems provide this indication fleetingly.
- the pressure gauge indicates a value greater than the reference pressure. A possible increase in pressure can be read on the pump pressure gauge.
- the eclipsable lock is released and the passage of the drilling liquid towards the drilling ring 2 is released.
- a deflector sleeve 41 ' is fixed to the lower part of the tube 11 door-locks, onto which a full shaft 41 is screwed .
- the shaft 41 carries around it and from top to bottom, a retaining ring 42, support washers 43, expansion rings 44 between them, a first stop for bill 45, a spacer sleeve 46, a second ball bearing 47, spring washers 48 and another retaining ring 49.
- the mechanical elements 43 to 48 surrounding the shaft 41 are clamped between the two retaining stops 4 and 49 by a self-locking nut 50, screwed on the threaded lower end of the shaft 41.
- the bracing sleeve 46 has a threaded part on the lacquer is screwed a support 51 of the inner tube.
- the internal threaded part of the support 51 carries a tube 3 receptacle of the carrot, threaded above and below.
- the lower part of the receptacle tube 3 is in turn screwed into the extractor sleeve 4 " which is provided at the bottom with an extractor spring 52.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Sampling And Sample Adjustment (AREA)
- Earth Drilling (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT85904786T ATE37425T1 (de) | 1984-10-02 | 1985-10-02 | Vorrichtung zur ueberwachung der verriegelung eines kernbehaelters. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE213763 | 1984-10-02 | ||
BE0/213763A BE900733A (fr) | 1984-10-02 | 1984-10-02 | Dispositif de controle du verrouillage d'un carottier double a cable. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0232268A1 true EP0232268A1 (fr) | 1987-08-19 |
EP0232268B1 EP0232268B1 (fr) | 1988-09-21 |
Family
ID=3843799
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP85904786A Expired EP0232268B1 (fr) | 1984-10-02 | 1985-10-02 | Dispositif de controle du verrouillage d'un tube carottier |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0232268B1 (fr) |
AT (1) | ATE37425T1 (fr) |
AU (1) | AU4957785A (fr) |
BE (1) | BE900733A (fr) |
DE (1) | DE3565149D1 (fr) |
NO (1) | NO862185L (fr) |
WO (1) | WO1986002124A1 (fr) |
ZA (1) | ZA857606B (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE1000529A4 (fr) * | 1987-05-13 | 1989-01-17 | Diamant Boart Sa | Dispositif de controle du verrouillage d'un carottier de sondage. |
US6799637B2 (en) | 2000-10-20 | 2004-10-05 | Schlumberger Technology Corporation | Expandable tubing and method |
BRPI0107164B1 (pt) * | 2000-10-20 | 2016-04-26 | Schlumberger Surenco Sa | equipamento para uso em um furo de poço, método para estabelecer uma seção não revestida de um furo de poço em uma formação subterrânea, método para facilitar o uso de um furo de poço, método para vedar uma parte de um furo de poço tubular, sistema para facilitar a comunicação ao longo de um furo de poço e método de roteamento de uma linha de poço |
CN109025873B (zh) * | 2017-06-10 | 2023-11-24 | 长春工程学院 | 深孔内管到位全自动报信绳索取心钻具 |
US11242719B2 (en) | 2017-11-27 | 2022-02-08 | Chevron U.S.A. Inc. | Subterranean coring assemblies |
US10577879B2 (en) * | 2017-11-27 | 2020-03-03 | Chevron U.S.A. Inc. | Subterranean coring assemblies |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2518795A (en) * | 1946-11-16 | 1950-08-15 | Hydril Corp | Valve for drill stems and the like |
US3004614A (en) * | 1958-10-20 | 1961-10-17 | Sprague & Henwood Inc | Core-taking apparatus |
US3912009A (en) * | 1974-06-12 | 1975-10-14 | Jr Philip E Davis | Latch-in adapter |
BE844368A (fr) * | 1976-07-20 | 1976-11-16 | Appareil carottier du type a cable |
-
1984
- 1984-10-02 BE BE0/213763A patent/BE900733A/fr not_active IP Right Cessation
-
1985
- 1985-10-02 AU AU49577/85A patent/AU4957785A/en not_active Abandoned
- 1985-10-02 EP EP85904786A patent/EP0232268B1/fr not_active Expired
- 1985-10-02 ZA ZA857606A patent/ZA857606B/xx unknown
- 1985-10-02 AT AT85904786T patent/ATE37425T1/de not_active IP Right Cessation
- 1985-10-02 WO PCT/BE1985/000016 patent/WO1986002124A1/fr active IP Right Grant
- 1985-10-02 DE DE8585904786T patent/DE3565149D1/de not_active Expired
-
1986
- 1986-06-02 NO NO862185A patent/NO862185L/no unknown
Non-Patent Citations (1)
Title |
---|
See references of WO8602124A1 * |
Also Published As
Publication number | Publication date |
---|---|
ZA857606B (en) | 1986-06-25 |
EP0232268B1 (fr) | 1988-09-21 |
DE3565149D1 (en) | 1988-10-27 |
ATE37425T1 (de) | 1988-10-15 |
NO862185D0 (no) | 1986-06-02 |
BE900733A (fr) | 1985-02-01 |
WO1986002124A1 (fr) | 1986-04-10 |
NO862185L (no) | 1986-06-02 |
AU4957785A (en) | 1986-04-17 |
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