EP0792999B1 - Vorrichtung zum Übertragen von Informationen innerhalb eines Bohrrohrstranges einer Bohrvorrichtung mittels Druckimpulsen in einer strömenden Flüssigkeit, insbesondere Bohrspülflüssigkeit - Google Patents
Vorrichtung zum Übertragen von Informationen innerhalb eines Bohrrohrstranges einer Bohrvorrichtung mittels Druckimpulsen in einer strömenden Flüssigkeit, insbesondere Bohrspülflüssigkeit Download PDFInfo
- Publication number
- EP0792999B1 EP0792999B1 EP97103081A EP97103081A EP0792999B1 EP 0792999 B1 EP0792999 B1 EP 0792999B1 EP 97103081 A EP97103081 A EP 97103081A EP 97103081 A EP97103081 A EP 97103081A EP 0792999 B1 EP0792999 B1 EP 0792999B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- flow
- resistance body
- fluid
- hollow
- membrane
- 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.)
- Expired - Lifetime
Links
- 238000005553 drilling Methods 0.000 title claims description 30
- 239000012530 fluid Substances 0.000 claims description 34
- 239000012528 membrane Substances 0.000 claims description 25
- 229920001971 elastomer Polymers 0.000 claims description 5
- 239000000806 elastomer Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims 5
- 239000000463 material Substances 0.000 claims 1
- 230000033764 rhythmic process Effects 0.000 claims 1
- 239000007788 liquid Substances 0.000 description 24
- 210000004379 membrane Anatomy 0.000 description 23
- 230000005540 biological transmission Effects 0.000 description 9
- 230000007423 decrease Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000005352 clarification Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Images
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
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
- E21B47/14—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves
- E21B47/18—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves through the well fluid, e.g. mud pressure pulse telemetry
- E21B47/24—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves through the well fluid, e.g. mud pressure pulse telemetry by positive mud pulses using a flow restricting valve within the drill pipe
Definitions
- the invention relates to a device according to the Preamble of claim 1.
- pressure pulses in flowing liquids Transfer information. Such an approach has proven to be particularly advantageous in drilling technology proved.
- the pressure impulses are regularly generated by the Drilling fluid within the drill string of a drilling device transfer. Consequently, the drilling fluid used as a data carrier. In this way it succeeds, for example Data from the drill head or drill bit at the end of the To transmit the drill pipe string to the surface.
- a pressure sensor to be provided, which in connection with an evaluation device can decode the received pressure pulses.
- the pressure pulses can provide information about the respective Deliver the operating condition of the drill head or drill bit.
- different methods of transmission are used and receiving pressure pulses. So you can the information, for example based on the pulse train or transmitted by varying the pulse strength.
- a device of the embodiment described in the introduction is known from EP-A-0 290 939.
- the pressure pulses essentially by a valve in the drilling fluid trained transmission device generated.
- the valve has a main valve body, which in a stroke-free, just by balance the operational end position determined by the forces acting on it can be adjusted.
- the well-known pressure pulse generation has proven itself to be successful but ultimately through a relative movement of rigid parts against each other.
- DE-PS 41 34 609 a device for production of pressure pulses in flowing media for transmission of information, especially when drilling holes in underground mining and tunneling through the flushing channel of the Drill pipe known.
- an impeller arranged which is in generator or motor operation switchable and alternating accordingly is operable.
- This pressure pulse generating device has also works well, but is in terms of simplification the structure could be improved.
- the invention has for its object a device to create the embodiment described above, which is characterized by a compact and cost-saving design, low-wear and low-energy works, an easy exchange of the moving parts and still allows the information transmits flawlessly.
- the invention proposes that the elastic flow resistance body made of rubber or an elastic plastic, e.g. an elastomer specified Shore hardness is made.
- the flow resistance body with regard to its Consistency and compliance to the flowing fluid to adjust.
- This also allows the elasticity of the flow resistance body and thus ultimately the pressure pulse shape to adjust.
- the change in the flow cross section takes place thereby as part of a control or regulation.
- a flow resistance body with a variable flow cross-section By change the flow cross section of this flow resistance body are in the direction of flow in the area of the flow resistance body and behind it generates pressure pulses, which are in the direction of flow of the liquid flow or Propagate drilling fluid flow.
- pressure fluctuations or pressure impulses can be attributed to the fact that with a reduced flow cross-section and the same liquid flow the flow velocity around the flow resistance body is increased around, consequently the fluid pressure partially decreases. A reduction in the flow cross-section consequently leads to a partial increase in pressure in the liquid flow.
- the elastic Flow resistance body as a hollow body, e.g. Hollow sphere, Torus or hollow cylinder with biconcave constrictions is. This makes it easy and quick to define Adjust changes to the flow cross-section.
- the elastic flow resistance body can also be made of be composed of several hollow bodies. This hollow body can be individually, jointly or alternately by the actuator be controllable. That way the shape of the pressure pulse, e.g. the width, affect. So a pressure pulse with double pulse width are simply created by the fact that two in one Elastic hollow spheres arranged in the flow cross-sectional plane are provided as flow resistance bodies.
- the adjusting device is preferably mechanical, pneumatic or hydraulically operated.
- a pneumatic one Actuation of the flow resistance body can be carried out in this way be that this flow resistance body, for example with Compressed air is applied and consequently its flow cross-section changed.
- the elastic flow resistance body formed as a membrane attached in the drill string is, whose top in the direction of flow of the liquid flow is arranged on the periphery of the liquid flow, acted upon by the actuating device during the underside thereof is.
- the Actuating device as a servomotor directly to the bottom of the Membrane connected.
- the top of the membrane now protrudes - influenced by the actuator - more or less in the liquid flow in and thus reduces the Flow cross section.
- instead of one electric actuator at the bottom of the membrane too corresponding hydraulic drives or mechanical actuators possible.
- the adjusting device as closable by means of a control valve to which Bottom of the membrane connected bypass line for the Fluid flow is formed.
- the control valve As long as the control valve is open, the fluid flow can consequently be unimpeded through the bypass line connected to the underside of the membrane flow through.
- the control valve if the control valve is closed, the pressure in the bypass line increases and leads to a deformation of the membrane in such a way that the flow cross section of the liquid flow is reduced becomes.
- the two bypass lines can each have separate control valves, so that - as in the case of several hollow bodies - for example one Doubling the width of the pressure pulse can be achieved can. However, it is preferably provided in this case that the two membranes with the two bypass lines from one common control valve can be acted upon.
- This is best based on the schematic overview in Fig. 1 can be seen.
- a pump P is shown, which the drilling fluid F pumps into the drill pipe string 1 so that the drilling fluid F the drill pipe string 1 in the direction indicated by arrows Flow direction.
- these values are total in the Information generation device 3 determined and to the connected transmission device 4 passed on.
- This Transmission device 4 now generates the pressure pulses in the Drilling fluid F.
- the pressure impulses plant on it in the direction of flow of the drilling fluid indicated by arrows F continues to the surface.
- the receiving device 5 is provided, which in the exemplary embodiment from a pressure sensor 5a and a heating device 5b exists.
- the pressure pulses transmitting information is recorded and decoded.
- the transmission device 4 has an elastic flow resistance body 6 in the liquid flow and an actuator 7 to control the flow cross section Q of the Flow resistance body 6 in time with the to be generated Pressure impulses.
- the flow cross section Q can also be changed in the course of a regulation.
- Fig. 2 are several embodiments of this flow resistance body 6 shown. So is in the example on the left above the elastic flow resistance body 6 as a hollow ball educated. In the figure below is a torus Flow resistance body 6 to see.
- the image top right shows one of several hollow spheres or hollow bodies composite flow resistance body 6 can the hollow body or flow resistance body 6 individually, together or alternately from the actuating device 7 can be controlled.
- the flow resistance body 6 is made made of an elastic plastic, in the embodiment an elastomer of specified Shore hardness.
- the actuator 7 can be operated mechanically, pneumatically or hydraulically his. 3 and 4 is in the embodiment a hydraulic actuation of the actuating device 7 is shown.
- a Flow resistance body 6 can be seen, which as a hollow body, in the exemplary embodiment as a cylindrical hollow body formed with cross-section variable over the length is.
- Fig. 2 are also the respective flow cross sections Q indicated.
- FIG. 3 shows a further embodiment of the flow resistance body 6.
- the flow resistance body 6 designed as a membrane 8 fastened in the drill string 1, the top of which in the direction of flow indicated by arrows Liquid flow of drilling fluid F at the periphery 9 of the liquid flow is arranged during which The bottom of the actuator 7 can be acted upon.
- the adjusting device 7 as means a control valve 10 closable to the bottom of the Membrane 8 connected bypass line 11 for the liquid flow the drilling fluid F is formed.
- FIG. 3 are two opposite one another Membranes 8a, 8b on the respective periphery 9 the liquid flow of drilling fluid F with respective Bypass lines 11a, 11b realized.
- This narrowing of the fluid flow can be determined by changing the flow cross-section Recognize Q
- the im left part of Fig. 3 reached flow cross section in the right part of Fig. 3 dashed when generating the pressure pulses indicated.
- This reduction in the flow cross-section Q now causes the flow velocity to change the drilling fluid F in the area of the two membranes 8a, 8b increases, which is simultaneous with a partial Decrease in pressure is connected, so that a total of a pressure pulse is generated, which is in the direction of flow of the liquid stream unhindered to the receiving device 5 or to Pressure sensor 5a can spread.
- Fig. 4 shows another embodiment of the Flow resistance body 6, which here as a cylindrical Hollow body or hollow cylinder with biconcave constrictions is executed.
- the size of this elastic hollow body leaves similar to the embodiment according to FIG. 3 vary in that the hollow body by means of the control valve 10 more or less "inflated” with drilling fluid F becomes. This changes the flow cross section Q in a manner comparable to that in the exemplary embodiment shown in FIG. 3.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Remote Sensing (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Geophysics (AREA)
- Acoustics & Sound (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
- Reciprocating Pumps (AREA)
Description
- Fig. 1
- einen Bohrrohrstrang im Bohrloch einer Tiefbohrung in schematischer Ansicht,
- Fig. 2
- mehrere Ausführungsformen des erfindungsgemäßen Strömungswiderstandskörpers,
- Fig. 3
- einen als Membran ausgebildeten Strömungswiderstandskörper im Bohrstrang, links bei unbelasteter Membran, rechts bei belasteter Membran unter Erzeugung eines Druckimpulses und
- Fig. 4
- eine andere Ausführungsform des Strömungswiderstandskörpers als Hohlkörper im Bohrrohrstrang in schematischer Ansicht.
Claims (9)
- Vorrichtung zum Übertragen von Informationen innerhalb eines Bohrrohrstranges (1) einer Bohrvorrichtung (2) mittels Druckimpulsen in einer strömenden Flüssigkeit, insbesondere Bohrspülflüssigkeit (F),mit einer Informationserzeugungseinrichtung (3), mit einer an die Informationserzeugungseinrichtung (3) angeschlossenen Übertragungseinrichtung (4) zur Erzeugung der Druckimpulse in der Flüssigkeit, und mit einer Empfangseinrichtung (5) zum Empfangen und Auswerten der durch die Druckimpulse übertragenen Informationen, wobei, die Übertragungseinrichtung (4) einen elastischen Strömungswiderstandskörper (6) im Flüssigkeitsstrom und eine Stellvorrichtung (7) zur Veränderung des Strömungsquerschnittes (Q) des Strömungswiderstandskörpers (6) im Takt der zu erzeugenden Druckimpulse aufweist, dadurch gekennzeichnet daß der Strömungs widerstandskörper aus Gummi oder aus einem elastischen Kunststoff, z.B. Elastomer vorgegebener Shore-Härte besteht.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der Strömungswiderstandskörper (6) als elastischer Hohlkörper, z. B. Hohlkugel, Torus oder Hohlzylinder mit bikonkaven Einschnürungen ausgebildet ist.
- Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Strömungswiderstandskörper (6) aus mehreren Hohlkörpern zusammengesetzt ist.
- Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass die Hohlkörper einzeln, gemeinsam oder abwechselnd von der Stellvorrichtung (7) ansteuerbar sind.
- Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Stellvorrichtung (7) mechanisch, pneumatisch oder hydraulisch betätigbar ist.
- Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der Strömungswiderstandskörper (6) als im Bohrstrang (1) befestigte Membran (8) ausgebildet ist, deren Oberseite in Fließrichtung des Flüssigkeitsstromes an der Peripherie (9) des Flüssigkeitsstromes angeordnet ist, während deren Unterseite von der Stellvorrichtung (7) beaufschlagbar ist.
- Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, dass die Stellvorrichtung (7) als mittels eines Steuerventils (10) verschließbare, an die Unterseite der Membran (8) angeschlossene Bypassleitung (11) für den Flüssigkeitsstrom ausgebildet ist.
- Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, dass zwei sich gegenüberliegende Membranen (8a, 8b) an der jeweiligen Peripherie (9) des Flüssigkeitsstromes mit jeweiligen Bypassleitungen (11a, 11b) vorgesehen sind.
- Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, dass die beiden Membranen (8a, 8b) mit den beiden Bypassleitungen (11a, 11b) von einem gemeinsamen Steuerventil (10) beaufschlagar sind.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19607402A DE19607402C1 (de) | 1996-02-28 | 1996-02-28 | Vorrichtung zum Übertragen von Informationen innerhalb eines Bohrrohrstranges einer Bohrvorrichtung mittels Druckimpulsen in einer strömenden Flüssigkeit, insbesondere Bohrspülflüssigkeit |
DE19607402 | 1996-02-28 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0792999A2 EP0792999A2 (de) | 1997-09-03 |
EP0792999A3 EP0792999A3 (de) | 1998-04-01 |
EP0792999B1 true EP0792999B1 (de) | 2002-01-23 |
Family
ID=7786599
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97103081A Expired - Lifetime EP0792999B1 (de) | 1996-02-28 | 1997-02-26 | Vorrichtung zum Übertragen von Informationen innerhalb eines Bohrrohrstranges einer Bohrvorrichtung mittels Druckimpulsen in einer strömenden Flüssigkeit, insbesondere Bohrspülflüssigkeit |
Country Status (4)
Country | Link |
---|---|
US (1) | US5806612A (de) |
EP (1) | EP0792999B1 (de) |
AT (1) | ATE212416T1 (de) |
DE (2) | DE19607402C1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012004392A1 (de) | 2012-03-03 | 2013-09-05 | Inoson GmbH | Vorrichtung zum Übertragen von Informationen aus einem Bohrloch |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6050349A (en) * | 1997-10-16 | 2000-04-18 | Prime Directional Systems, Llc | Hydraulic system for mud pulse generation |
US6321596B1 (en) | 1999-04-21 | 2001-11-27 | Ctes L.C. | System and method for measuring and controlling rotation of coiled tubing |
US6443242B1 (en) | 2000-09-29 | 2002-09-03 | Ctes, L.C. | Method for wellbore operations using calculated wellbore parameters in real time |
US20030026167A1 (en) * | 2001-07-25 | 2003-02-06 | Baker Hughes Incorporated | System and methods for detecting pressure signals generated by a downhole actuator |
CA2460161A1 (en) * | 2001-09-14 | 2003-03-27 | Shell Canada Limited | System for controlling the discharge of drilling fluid |
US7185719B2 (en) * | 2002-02-20 | 2007-03-06 | Shell Oil Company | Dynamic annular pressure control apparatus and method |
US6970398B2 (en) * | 2003-02-07 | 2005-11-29 | Schlumberger Technology Corporation | Pressure pulse generator for downhole tool |
EA008422B1 (ru) * | 2003-08-19 | 2007-04-27 | Шелл Интернэшнл Рисерч Маатсхаппий Б.В. | Система и способ бурения скважины |
NO337489B1 (no) * | 2010-10-21 | 2016-04-25 | Tco As | Anordning for trykkpulsoverføring av kontrollsignaler til nedihullsutstyr |
US20140262507A1 (en) | 2013-03-12 | 2014-09-18 | Weatherford/Lamb, Inc. | Rotary steerable system for vertical drilling |
DE102016001780A1 (de) | 2016-02-08 | 2017-08-24 | Stefan von den Driesch | Kostengünstiges Verfahren zum Kalibrieren von Magnetfeldsensoren in einem hoch präzise arbeitenden Richtbohrgerät zur frühzeitigen, zuverlässigen und zeitnahen Bestimmung des Bohrlochs und ein hoch präzise arbeitendes Richtbohrgerät zum kostengünstigen Tiefrichtbohren |
DE102016001779A1 (de) | 2016-02-08 | 2017-08-10 | Stefan von den Driesch | Wartungsarmes betriebssicheres Bohrwerkzeug für den störungsfreien Dauerbetrieb zum Abteufen von automatisch richtungsüberwachten Bohrungen in unterirdischen Gesteinsformationen |
US12000274B2 (en) | 2020-12-28 | 2024-06-04 | Halliburton Energy Services, Inc. | Wireless telemetry using a pressure switch and mechanical thresholding of the signal |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3958217A (en) * | 1974-05-10 | 1976-05-18 | Teleco Inc. | Pilot operated mud-pulse valve |
US4078620A (en) * | 1975-03-10 | 1978-03-14 | Westlake John H | Method of and apparatus for telemetering information from a point in a well borehole to the earth's surface |
US4557295A (en) * | 1979-11-09 | 1985-12-10 | The United States Of America As Represented By The Secretary Of The Army | Fluidic mud pulse telemetry transmitter |
US4553226A (en) * | 1980-01-10 | 1985-11-12 | Scherbatskoy Serge Alexander | Systems, apparatus and methods for measuring while drilling |
NL8302429A (nl) * | 1982-07-10 | 1984-02-01 | Sperry Sun Inc | Inrichting voor het verwerken van signalen in een boorgat tijdens het boren. |
DE3531226A1 (de) * | 1985-08-31 | 1987-03-19 | Schwing Hydraulik Elektronik | Vorrichtung, insbesondere fuer den einsatz unter tage zur fernuebertragung von informationen aus einem bohrloch |
DE3715514C1 (de) * | 1987-05-09 | 1988-09-08 | Eastman Christensen Co., Salt Lake City, Utah, Us | |
US4805449A (en) * | 1987-12-01 | 1989-02-21 | Anadrill, Inc. | Apparatus and method for measuring differential pressure while drilling |
DE4134609C2 (de) * | 1991-10-19 | 1993-10-07 | Bergwerksverband Gmbh | Druckimpulserzeuger |
FR2691812B1 (fr) * | 1992-05-29 | 1994-09-02 | Geophysique Cie Gle | Procédé de traitement de signaux pour prospection géophysique exploitant un opérateur d'extrapolation d'un champ d'onde perfectionné. |
-
1996
- 1996-02-28 DE DE19607402A patent/DE19607402C1/de not_active Expired - Fee Related
-
1997
- 1997-02-24 US US08/805,408 patent/US5806612A/en not_active Expired - Lifetime
- 1997-02-26 EP EP97103081A patent/EP0792999B1/de not_active Expired - Lifetime
- 1997-02-26 DE DE59706148T patent/DE59706148D1/de not_active Expired - Lifetime
- 1997-02-26 AT AT97103081T patent/ATE212416T1/de not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012004392A1 (de) | 2012-03-03 | 2013-09-05 | Inoson GmbH | Vorrichtung zum Übertragen von Informationen aus einem Bohrloch |
Also Published As
Publication number | Publication date |
---|---|
US5806612A (en) | 1998-09-15 |
EP0792999A2 (de) | 1997-09-03 |
DE59706148D1 (de) | 2002-03-14 |
DE19607402C1 (de) | 1997-07-10 |
EP0792999A3 (de) | 1998-04-01 |
ATE212416T1 (de) | 2002-02-15 |
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