EP0588373A1 - Doppelkernrohr für abgelenkte Bohrungen - Google Patents

Doppelkernrohr für abgelenkte Bohrungen Download PDF

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Publication number
EP0588373A1
EP0588373A1 EP93116845A EP93116845A EP0588373A1 EP 0588373 A1 EP0588373 A1 EP 0588373A1 EP 93116845 A EP93116845 A EP 93116845A EP 93116845 A EP93116845 A EP 93116845A EP 0588373 A1 EP0588373 A1 EP 0588373A1
Authority
EP
European Patent Office
Prior art keywords
ball
drilling
tube
inner tube
double
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.)
Withdrawn
Application number
EP93116845A
Other languages
English (en)
French (fr)
Inventor
Staffan Paues
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Diamant Boart Stratabit SA
Original Assignee
Diamant Boart Stratabit SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from BE9000560A external-priority patent/BE1004330A3/fr
Application filed by Diamant Boart Stratabit SA filed Critical Diamant Boart Stratabit SA
Priority to EP93116845A priority Critical patent/EP0588373A1/de
Publication of EP0588373A1 publication Critical patent/EP0588373A1/de
Withdrawn legal-status Critical Current

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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
    • E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
    • 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
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/10—Valve arrangements in drilling-fluid circulation systems
    • 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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/04—Directional drilling

Definitions

  • the present invention relates to a double corer for deviated drilling comprising, on the one hand, a rotary external tube carrying a drilling ring, and on the other hand, a non-rotating internal tube carrying at a first end, close to the ring sounding, a carrot extraction device formed by an extractor spring and a conical shoe while the other end is screwed onto a non-rotating part of a ball or needle bearing.
  • deviated drilling drilling lies in the possibility of taking numerous samples at great depth from a single drilling point, at various locations along a substantially horizontal oil table. These holes allow the investigation of the composition of the aquifer and its extent.
  • a deviated drilling borehole can be carried out using a double borehole sampler as described in document BE-A-844.366.
  • a corer comprises a rotary external tube provided with a sounding ring and a non-rotary internal tube provided with a shoe and an extractor spring intended to take a drilling core.
  • the inner tube is slidably mounted in the outer tube.
  • the coring technique consists in taking a cylindrical rock sample cut by the sounding ring rotated by the outer tube.
  • the sample gradually engages in the inner tube during coring while controlling the flow of drilling fluid.
  • the core barrel device includes a locking indicator making it possible to detect, from the surface, the precise moment of locking the core barrel in the coring position, in a wet or dry hole.
  • the locking indicator is an adjustable control valve which includes a spherical valve applied elastically against an annular seat by a restoring spring supported lower on an adjustment washer axially movable in a body formed by a sleeve constituting the head of the inner tube.
  • the operator has, in the adjustable control valve, for deep drilling, a particularly simple, quick 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 any motor.
  • the end of the coring is signaled to the operator by an increase in the pressure of the probing liquid caused by a deflector sleeve acting against suspension stops when the carrot completely fills the inner tube and presses against a support forming the bottom of the inner tube of so as to interrupt the flow of the probing liquid.
  • EP-A-0050104 describes a double core barrel device with ball shutter intended to divert the flow of the probing liquid towards the outside of the core barrel during coring.
  • the purpose of the ball shutter is to conduct the drilling fluid through the core barrel in order to clear and clean up the scree that accumulated at the bottom of the well during the ascent and descent of the drill string. drilling in order to be able to take a representative carrot from the ground.
  • the shutter is actuated by an operator who freely launches, from the end of the drill string opposite the core barrel, a ball intended to close off a seat provided at the upper end of the core barrel.
  • the descent of the ball in a hollow rod train with a length of about 3000 meters can take about 20 minutes.
  • the shutter has the disadvantage that at the end of its fall, the ball abruptly applies to the aforementioned seat and causes in the downward column of drilling liquid a water hammer which damages the corer and possibly the well of survey.
  • the end of the coring is signaled to the operator by an increase in the pressure of the probing liquid.
  • a valve then partially closes the conduit supplying the probing ring with probing liquid, so that the latter receives enough probing liquid to avoid burning or damaging the probing ring.
  • a conventional double corer generally comprises a ball shutter device intended to divert the flow of the probing liquid towards the outside of the corer during the coring.
  • the shutter ball which is generally thrown from the surface of the ground in order to close a seat of the shutter device, is kept on its seat, during the coring operation, only by its own weight and by the pressure exerted on it by the drilling fluid.
  • the present invention aims to remedy the above drawbacks. It also aims to produce a core barrel device provided with a blocking indicator which makes it possible to prevent the unexpected opening of the closure device mounted at the top of the inner tube of the core barrel, when the core barrel device is used in a deviated drilling , so as to obtain a corer specially adapted to deviated drilling by the use of means and accessories which reinforce the rigidity of the inner tube of the corer.
  • This object can be achieved using a double core barrel as described in the preamble of claim 1.
  • the double corer comprises a blocking indicator consisting of a sleeve opening into an annular gap provided between a distributor tube and a deflecting envelope mounted on a distributor tube and limited by a biased rim cooperating with an edge biased by an annular protuberance of the sleeve to delimit an annular slot of variable width, during the sliding of the sleeve relative to the deflecting envelope, the progressive closing of the slot making it possible to progressively reduce the flow of drilling fluid and cause a progressive increase in pressure, as a signal indicating a blockage.
  • the ball shutter device is a basket formed by metal fingers retained by the upper edge of the basket and curved inward, said fingers being elastically deformable and capable to move away under the thrust of the ball and form a barrier for the ball, when the fingers return to the initial position.
  • the double corer for deviated drilling consists essentially of an outer tube 1 and an inner tube 2.
  • the outer tube 1 consists of a train of hollow rods driving in rotation a probing ring 3.
  • the outer tube 1 comprises a body 4 on which is fixed a bearing 10 of a ball or needle 11 bearing.
  • the inner tube 2 mainly comprises tubular elements screwed one after the other and arranged coaxially with the outer tube 1.
  • the lower tubular element of the inner tube 2 carries a device 9 for extracting the core.
  • the upper tubular element of the inner tube 2 is screwed to the non-rotating part 12 of the bearing 11, which is integral with the core barrel.
  • the non-rotating part 12 of the bearing 11 comprises a closure device 19 intended to receive a ball 46 as illustrated in FIGS. 2 to 5.
  • this closure device is known (see document BE-A-8700395). At the start of drilling it is essential to pass the drilling liquid in the direction of the arrows X through the inner tube 2 in order to remove the scree that has accumulated in the inner tube 2 and at the bottom of the well. This clearing is obtained by using the fully open core barrel, that is to say not yet provided with the sealing ball 46, so as to allow the probing liquid to pass through the inner part of inner tube 2.
  • FIG. 3 A first embodiment of the closure device specially adapted the double corer for deviated drilling is illustrated in Figure 3.
  • This device consists of a metal basket 49 without bottom flared up.
  • the side wall of the basket 49 is formed of elastically deformable curved fingers 50. These fingers are retained by the upper edge 51 of the basket 49. They have the function of holding the ball on its seat whatever the inclination of the deviated drilling.
  • FIG 2 illustrates the approach of the ball driven by the drilling fluid. To accelerate the descent of the ball 46 it is known to increase the flow rate of the drilling liquid.
  • Figure 3 shows how the ball crosses the basket by spreading the fingers thanks to the inertia acquired by the ball 46.
  • the resistance of the fingers 50 to elastically deform brakes the ball 46 and reduces the impact of the ball 46 on the seat 48.
  • the ball 46 closes the inner tube 2 (FIG. 4).
  • the curved shape of the fingers 50 allows the ball 46 to deviate to a limited extent from its seat 48 so as to allow the elimination of any overpressure in the core barrel by releasing, in the direction of the arrows Y, the liquid of sounding or any other fluid trapped in the inner tube 2 ( Figure 5).
  • the non-rotating part 12 of the ball or needle bearing 11 is extended by internal tube elements 22 of constant diameter.
  • the present invention provides a means for detecting the blockage of the inner tube 2 using a pressure gauge provided by a device generally designated by the reference sign 55. It is a blocking indicator mounted in head of the inner tube 2. As illustrated in FIG. 1B, the blocking indicator 55 includes a sleeve 56 opening into a gap 58 provided between the flow distributor tube 27 and a deflecting envelope 59 which facilitates the passage of the drilling drilling fluid supplying the lower section of the core barrel to cool the tool during coring and to evacuate drilling debris.
  • the deflector casing 59 is fixed to the distributor tube 27 (see FIG. 3). It is limited by a biased edge 60 cooperating with a biased edge 61 of a protuberance of the sleeve 56 so as to delimit an annular slot 62 of variable width constituting a restriction of an annular channel for passage of the drilling liquid, during an axial displacement of the sleeve 56 relative to the envelope deflector 59 which surrounds it.
  • This restriction which occurs in the event of an unforeseen incident during coring, an incident frequently referred to as "jamming", makes it possible to cause an increase in pressure which can be read on a pressure gauge on the surface by an operator.
  • This signal constitutes a warning which provides the operator with the indication that the operational parameters of the drilling must be modified to unlock the core in the inner core barrel.
  • the inner tube 2 of the core barrel then drives up a suspension ring on which a spring 63 made up of Belleville washers 64 rests, allowing the inner tube a certain freedom of sliding limited downwards by the stops 65.
  • the spring hardly crushed pushes the sleeve up against the stops 66 and engages a biased edge 61 of the sleeve 56 in the annular gap 58 so as to restrict the section of the annular slot 62.
  • the decrease in drilling fluid flow is gradual and does not cause water hammer.
  • the extractor spring 8 (FIG. 1A) is formed of a split ring, the inner face of which is covered with a gripping coating 36. At the end of coring, the ring closes on the carrot by cone effect, by resting on the conical shoe 32 when the inner tube 2 is removed.
  • the extraction device makes it possible to break the core and to retain the sample in the inner tube while the inner tube 2 is raised to the surface of the ground.
  • the corer according to the invention has the merit of making it possible to carry out a horizontal borehole which has the advantage of making it possible to correctly determine the extent of an oil deposit made up of oil spills of large extent but of low height, there where a vertical survey would only provide summary prospecting results and clearly insufficient to give a correct estimate of the profitability of the possible exploitation of a deposit.
  • a horizontal borehole also has the major advantage of speeding up the extraction of petroleum and increasing the flow of petroleum which can access the extraction tube in a horizontal petroleum deposit since it allows sampling, by a large number of separate orifices distributed along the oil table, the crude oil that the water contains. This significantly improves the profitability of operating a horizontal deposit since it prevents the oil from having to migrate over long distances through sufficiently permeable layers of land before reaching the immediate vicinity of the extraction tube, as this could be the case in a vertical survey.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (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)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
EP93116845A 1990-05-31 1991-05-30 Doppelkernrohr für abgelenkte Bohrungen Withdrawn EP0588373A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP93116845A EP0588373A1 (de) 1990-05-31 1991-05-30 Doppelkernrohr für abgelenkte Bohrungen

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
BE9000560A BE1004330A3 (fr) 1990-05-31 1990-05-31 Carottier double pour forage devie.
BE9000560 1990-05-31
EP93116845A EP0588373A1 (de) 1990-05-31 1991-05-30 Doppelkernrohr für abgelenkte Bohrungen

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP91909440.9 Division 1991-05-30

Publications (1)

Publication Number Publication Date
EP0588373A1 true EP0588373A1 (de) 1994-03-23

Family

ID=25662528

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93116845A Withdrawn EP0588373A1 (de) 1990-05-31 1991-05-30 Doppelkernrohr für abgelenkte Bohrungen

Country Status (1)

Country Link
EP (1) EP0588373A1 (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999020870A1 (fr) * 1997-10-17 1999-04-29 Halliburton Energy Services, Inc. Carottier
CN108590606A (zh) * 2018-05-25 2018-09-28 东北石油大学 一种可调节式恒流注水堵塞器
CN111456664A (zh) * 2020-04-16 2020-07-28 中国地质科学院勘探技术研究所 一种可防止岩心卡堵的取心钻具
CN112112589A (zh) * 2020-10-28 2020-12-22 黄河勘测规划设计研究院有限公司 投球式防喷真空单管取心钻具及取心操作方法
CN113153193A (zh) * 2021-05-24 2021-07-23 四川大学 弹簧滚珠解锁悬挂机构、弹卡机构、取芯装置及使用方法
CN113464079A (zh) * 2021-07-28 2021-10-01 广东工业大学 一种用于钻探取芯管的辅助装置及其使用方法
CN114166562A (zh) * 2021-12-16 2022-03-11 中国铁路设计集团有限公司 一种三重管单动压力补偿式回转取土器及取土方法
CN114961614A (zh) * 2022-05-17 2022-08-30 煤炭科学研究总院有限公司 一种矿山巷道开采钻进装置
CN116006107A (zh) * 2023-01-03 2023-04-25 中煤科工西安研究院(集团)有限公司 一种预置封堵球式密闭取心装置及方法
CN117365291A (zh) * 2023-12-05 2024-01-09 山西三水能源股份有限公司 一种地热探测设备

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2791398A (en) * 1955-01-17 1957-05-07 Exxon Research Engineering Co Core signalling device
US3605920A (en) * 1969-12-30 1971-09-20 Texaco Inc Core drilling apparatus with means to indicate amount of core in barrel
BE844368A (fr) * 1976-07-20 1976-11-16 Appareil carottier du type a cable
US4452321A (en) * 1980-10-10 1984-06-05 Craelius Ab Device in core barrels
US4638872A (en) * 1985-04-01 1987-01-27 Diamond Oil Well Drilling Company Core monitoring device
EP0287548A1 (de) * 1987-04-14 1988-10-19 DIAMANT BOART Société Anonyme Vorrichtung zum Verschliessen eines Kernbohrgerätes in einem Bohrstrang
US4828037A (en) * 1988-05-09 1989-05-09 Lindsey Completion Systems, Inc. Liner hanger with retrievable ball valve seat
US4862966A (en) * 1988-05-16 1989-09-05 Lindsey Completion Systems, Inc. Liner hanger with collapsible ball valve seat

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2791398A (en) * 1955-01-17 1957-05-07 Exxon Research Engineering Co Core signalling device
US3605920A (en) * 1969-12-30 1971-09-20 Texaco Inc Core drilling apparatus with means to indicate amount of core in barrel
BE844368A (fr) * 1976-07-20 1976-11-16 Appareil carottier du type a cable
US4452321A (en) * 1980-10-10 1984-06-05 Craelius Ab Device in core barrels
US4638872A (en) * 1985-04-01 1987-01-27 Diamond Oil Well Drilling Company Core monitoring device
EP0287548A1 (de) * 1987-04-14 1988-10-19 DIAMANT BOART Société Anonyme Vorrichtung zum Verschliessen eines Kernbohrgerätes in einem Bohrstrang
US4828037A (en) * 1988-05-09 1989-05-09 Lindsey Completion Systems, Inc. Liner hanger with retrievable ball valve seat
US4862966A (en) * 1988-05-16 1989-09-05 Lindsey Completion Systems, Inc. Liner hanger with collapsible ball valve seat

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1011502A3 (fr) * 1997-10-17 1999-10-05 Dresser Ind Carottier.
WO1999020870A1 (fr) * 1997-10-17 1999-04-29 Halliburton Energy Services, Inc. Carottier
CN108590606B (zh) * 2018-05-25 2023-04-25 东北石油大学 一种可调节式恒流注水堵塞器
CN108590606A (zh) * 2018-05-25 2018-09-28 东北石油大学 一种可调节式恒流注水堵塞器
CN111456664A (zh) * 2020-04-16 2020-07-28 中国地质科学院勘探技术研究所 一种可防止岩心卡堵的取心钻具
CN112112589B (zh) * 2020-10-28 2023-10-03 黄河勘测规划设计研究院有限公司 投球式防喷真空单管取心钻具及取心操作方法
CN112112589A (zh) * 2020-10-28 2020-12-22 黄河勘测规划设计研究院有限公司 投球式防喷真空单管取心钻具及取心操作方法
CN113153193A (zh) * 2021-05-24 2021-07-23 四川大学 弹簧滚珠解锁悬挂机构、弹卡机构、取芯装置及使用方法
CN113153193B (zh) * 2021-05-24 2024-02-23 四川大学 弹簧滚珠解锁悬挂机构、弹卡机构、取芯装置及使用方法
CN113464079A (zh) * 2021-07-28 2021-10-01 广东工业大学 一种用于钻探取芯管的辅助装置及其使用方法
CN113464079B (zh) * 2021-07-28 2023-06-16 广东工业大学 一种用于钻探取芯管的辅助装置及其使用方法
CN114166562A (zh) * 2021-12-16 2022-03-11 中国铁路设计集团有限公司 一种三重管单动压力补偿式回转取土器及取土方法
CN114166562B (zh) * 2021-12-16 2024-01-26 中国铁路设计集团有限公司 一种三重管单动压力补偿式回转取土器及取土方法
CN114961614A (zh) * 2022-05-17 2022-08-30 煤炭科学研究总院有限公司 一种矿山巷道开采钻进装置
CN114961614B (zh) * 2022-05-17 2023-11-10 煤炭科学研究总院有限公司 一种矿山巷道开采钻进装置
CN116006107A (zh) * 2023-01-03 2023-04-25 中煤科工西安研究院(集团)有限公司 一种预置封堵球式密闭取心装置及方法
CN117365291A (zh) * 2023-12-05 2024-01-09 山西三水能源股份有限公司 一种地热探测设备
CN117365291B (zh) * 2023-12-05 2024-03-29 山西三水能源股份有限公司 一种地热探测设备

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