EP1225301A1 - Hohles Bohrgestänge zur Informationsübertragung - Google Patents
Hohles Bohrgestänge zur Informationsübertragung Download PDFInfo
- Publication number
- EP1225301A1 EP1225301A1 EP02290125A EP02290125A EP1225301A1 EP 1225301 A1 EP1225301 A1 EP 1225301A1 EP 02290125 A EP02290125 A EP 02290125A EP 02290125 A EP02290125 A EP 02290125A EP 1225301 A1 EP1225301 A1 EP 1225301A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- layer
- rod
- drill pipe
- conductive
- rods
- 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
- 238000005553 drilling Methods 0.000 claims abstract description 37
- 239000004020 conductor Substances 0.000 claims abstract description 8
- 230000005540 biological transmission Effects 0.000 claims description 16
- 230000008878 coupling Effects 0.000 claims description 10
- 238000010168 coupling process Methods 0.000 claims description 10
- 238000005859 coupling reaction Methods 0.000 claims description 10
- 239000011810 insulating material Substances 0.000 claims description 9
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 239000012777 electrically insulating material Substances 0.000 claims 1
- 239000012772 electrical insulation material Substances 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 51
- 239000004459 forage Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 230000002829 reductive effect Effects 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 235000008612 Gnetum gnemon Nutrition 0.000 description 2
- 240000000018 Gnetum gnemon Species 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 238000005121 nitriding Methods 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000003466 welding Methods 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/003—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings with electrically conducting or insulating means
-
- 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
- E21B47/13—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 by electromagnetic energy, e.g. radio frequency
Definitions
- the subject of the present invention is a hollow drilling rod for the transmission of information and a drill string allowing the carrying out such transmission of information.
- the invention relates to a rod drilling of the type used to make drill pipes for drill pipes used to drill wells in the ground, these wells being filled as and when measuring their drilling of a drilling mud, these rods allowing in addition to the transmission of information between the bottom of the well and the surface of the ground.
- a drill string is shown formed by the rod 10a constituting the lower rod, the rod 10b constituting the upper rod and intermediate rods.
- a drilling tool 12 is attached at the lower end of the rod 10a and includes measurement sensors 14.
- the internal face 16 of the rods 10 is coated with a layer of material insulator 18 over the entire length of the drill string.
- the train rods is of course arranged inside the well being drilled 20 which is filled with an electrically conductive drilling mud 22.
- the insulating layer 16 constitutes a closed current loop consisting on the one hand of drilling mud 30 filling the inside of the rods 10 and on the other hand into the assembly constituted by the same wall of the rods 10 and by the mud 32 outside the rods 10.
- a first object of the invention is to provide a drill pipe which allows the transmission of information via this rod whatever the electrical properties of the sludge used to make drilling and which avoids the abrasion phenomenon.
- the conductive layer constitutes a kind of short circuit by compared to the mud contained in the rod. At the connection between the two rods, electrical continuity is ensured by the mud on contact conductive rings of the adjacent rods. The distance between the two rings are reduced, this is not a problem.
- the layer conductive and the two conductive rings are electrically insulated from the wall of the rod by the insulating layer.
- each ring is mechanically protected by the insulating layer which covers it. Only the internal face of each ring is subjected to the abrasive effect of the liquid circulating in the rod. However, these rings have a reduced length compared to the length of the rod and can be made with a resistant conductive material abrasion.
- the drill pipe is characterized in that the length l of each of said conductive rings is between 0.8 and 2.2 D, D being the internal diameter of said rod.
- said layer of insulating material also covers the internal faces of the connection sleeves less for their parts which are not in mutual recovery when a drill pipe is assembled with another drill pipe.
- a second object of the invention is to provide a drill string drilling that allows the transmission of information at least between the lower end of the train and its upper end under conditions improved regardless of the electrical properties of the mud filling the drilling in progress.
- FIG. 2 we will describe a preferred embodiment of the invention.
- the female connection sleeve 60 of the rod T 1 and the male connection sleeve 62 of the rod T 2 as well as common parts of these two rods.
- the male and female sleeves are constituted by frustoconical threads 64.
- the internal face 66 of the rod T 2 and the internal face 68 of the rod T 1 are covered by an insulating layer 70.
- This insulating layer is for example consisting of a layer of an insulating epoxy resin, the thickness of which is preferably less than 250 ⁇ m. More generally, the thickness of the insulating layer depends on the dielectric properties of the material used.
- the insulating layer 70 is extended on the start 72 of the connection sleeve 60 and on the start 74 of the connection sleeve 62 of the rod T 2 . In this zone, the two connection sleeves define a recess 76.
- an annular insulating seal 78 secured to the end 74 of the connection sleeve 62 is put in place. When the assembly of the two rods is completed, the seal 78 is compressed to ensure a seal.
- a conductive layer 80 which extends over the internal face, over its entire length, of the layer insulating except for its ends close to the sleeves connection.
- the conductive layer 80 is electrically connected to its ends corresponding to connection sleeves 60 and 62 at conductive annular rings such as 84 arranged in line with the connection sleeves. These rings 84 are isolated from the wall 52 of the rod by the insulating layer 70. On the current part of the layer conductive 80, a second insulating protective layer 86 is produced. Of course, the insulating layer 86 does not cover the rings conductive 84.
- the electrical continuity between the conductive layers 80 at the level of the recess 76 between two consecutive rods is ensured via the rings 84 and the mud under conditions entirely acceptable by the mud contained in this recess whatever the properties of the mud due to the very short length of the recess. It is also understood that the series of conductive layers 80 and rings 84 is isolated from the walls 52 1 , 52 2 of the rods T 1 and T 2 . The walls 52 1 and 52 2 as well as the mud outside the rods constitute the return path of the current loop.
- the conductive layer 80 can advantageously be consisting of a deposit of conductive epoxy resin whose thickness is also of the order of 250 ⁇ m.
- the conductive layer 80 can also be produced from the next way.
- the conductive layer 80 is interrupted at its ends to allow the establishment of the rings 84 which are electrically connected to layer 80, for example by welding.
- the outer face of the rings 84 is covered with a insulating layer extending the insulating layer 70.
- the rings 84 are made with a material which has good electrical conductivity for electrical coupling with the mud and good abrasion resistance.
- rings 84 can be made of brass with a surface treatment, by example, by nitriding to increase the surface hardness of the Ring.
- the length of the ring 80 along the axis XX 'of the rod is between 0.8 and 2.2 D, D being the internal diameter of the rod.
- D being the internal diameter of the rod.
- the internal diameter D of the rods can be of the order of 2.5 to 5 cm.
- the length l of the ring is therefore of the order of 2.5 cm to 11 cm, which which is very small compared to the total length of the rod which is in the range of 9 to 10 meters.
- the particular realization of the rings 84 does not therefore raises no particular problem given the reduced length of them.
- a drilling in progress 90 in which there is the drilling mud 92.
- the drill string constituted by the lower rod T i , the upper rod T s and the intermediate rods T.
- the upper rod T s cooperates with a drilling head 94 which allows the rotation of the drill string and the progressive descent of the latter in the borehole 90.
- a standard type drilling tool 96 is mounted on the lower rod T i .
- This drilling tool is equipped with measurement sensors 98.
- the internal face 100 of the rods T is successively covered with an insulating layer 102, with a conductive layer 104 provided with its end rings.
- a first electromagnetic coupling coil 106 is mounted inside the lower rod T i near its lower end. This coil 106 is electrically connected by conductors 108 to the sensors 98 and behaves like a transmitting and possibly receiving coil. Inside the upper rod T s , a second electromagnetic coupling coil 110 is mounted. This coil 110 is maintained below the level of the mud 92 in the borehole. This coil is receiver and possibly transmitter.
- all of the rods with their conductive and insulating layers defines a closed current loop a first branch of which is formed by the conductive layers 104 and the mud contained inside the stems and of which the second branch is formed by the wall of the rods itself and the mud to the outside of the drill string.
- These two branches of the current loop being connected by the drilling tool 96 at its lower end and by suitable means at its upper end.
- the coil lower 106 receives sensors 98, representative electrical signals of the measurements made by the sensors 98. These alternating signals induce a current in the closed current loop described above.
- This alternating current creates in the second coil 110 a current alternative representative of the measurement information delivered by the sensors 98, the voltage created in the coil is transmitted to a set processing 112 via the electrical conductors 114 and a collector rotating at the level of the drilling head 94.
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Remote Sensing (AREA)
- Mechanical Engineering (AREA)
- Electromagnetism (AREA)
- Geophysics (AREA)
- Earth Drilling (AREA)
- Laminated Bodies (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0100798A FR2819851B1 (fr) | 2001-01-22 | 2001-01-22 | Tige creuse de forage pour la transmission d'informations |
FR0100798 | 2001-01-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1225301A1 true EP1225301A1 (de) | 2002-07-24 |
EP1225301B1 EP1225301B1 (de) | 2006-03-29 |
Family
ID=8859072
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02290125A Expired - Lifetime EP1225301B1 (de) | 2001-01-22 | 2002-01-18 | Hohles Bohrgestänge zur Informationsübertragung |
Country Status (6)
Country | Link |
---|---|
US (1) | US6952170B2 (de) |
EP (1) | EP1225301B1 (de) |
AT (1) | ATE321932T1 (de) |
DE (1) | DE60210235D1 (de) |
FR (1) | FR2819851B1 (de) |
HK (1) | HK1050234A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1434063A3 (de) * | 2002-12-23 | 2007-01-24 | Halliburton Energy Services, Inc. | Verfahren und System zur Messsignalübertragung für Bohrgestänge |
WO2011128068A2 (de) | 2010-04-12 | 2011-10-20 | Universität Siegen | Kommunikationssystem zur übertragung von informationen über bohrgestänge |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004033847A1 (en) * | 2002-10-10 | 2004-04-22 | Varco I/P, Inc. | Apparatus and method for transmitting a signal in a wellbore |
GB0227206D0 (en) * | 2002-11-21 | 2002-12-24 | Qinetiq Ltd | Electrical transmission system |
US7320370B2 (en) | 2003-09-17 | 2008-01-22 | Schlumberger Technology Corporation | Automatic downlink system |
CA2545377C (en) * | 2006-05-01 | 2011-06-14 | Halliburton Energy Services, Inc. | Downhole motor with a continuous conductive path |
FR2965602B1 (fr) * | 2010-10-04 | 2013-08-16 | Electronique Ind De L Ouest Tronico | Tube destine a transporter des substances et assemblage de tubes correspondant |
CN102454367A (zh) * | 2010-10-19 | 2012-05-16 | 中国石油化工集团公司 | 动力及信号传输钻杆 |
WO2012082748A2 (en) * | 2010-12-14 | 2012-06-21 | Halliburton Energy Services, Inc. | Data transmission in drilling operation environments |
US9080391B2 (en) | 2013-05-08 | 2015-07-14 | Halliburton Energy Services, Inc. | Insulated conductor for downhole drilling equipment and method |
US10240435B2 (en) | 2013-05-08 | 2019-03-26 | Halliburton Energy Services, Inc. | Electrical generator and electric motor for downhole drilling equipment |
GB2555260B (en) * | 2015-06-03 | 2021-05-26 | Halliburton Energy Services Inc | Drilling tool with near-bit electronics |
US10669840B2 (en) * | 2015-10-27 | 2020-06-02 | Baker Hughes, A Ge Company, Llc | Downhole system having tubular with signal conductor and method |
US10125604B2 (en) * | 2015-10-27 | 2018-11-13 | Baker Hughes, A Ge Company, Llc | Downhole zonal isolation detection system having conductor and method |
CN112065291A (zh) * | 2020-09-01 | 2020-12-11 | 中国海洋石油集团有限公司 | 导电钻杆 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4012092A (en) * | 1976-03-29 | 1977-03-15 | Godbey Josiah J | Electrical two-way transmission system for tubular fluid conductors and method of construction |
US4684946A (en) * | 1983-05-06 | 1987-08-04 | Geoservices | Device for transmitting to the surface the signal from a transmitter located at a great depth |
US4899834A (en) * | 1986-01-24 | 1990-02-13 | Parker Kinetic Designs, Inc. | Electromagnetic drilling apparatus |
FR2777594A1 (fr) * | 1998-04-17 | 1999-10-22 | Sol Comp Du | Installation de transmission d'informations dans un puits de forage |
EP0964134A2 (de) * | 1998-06-12 | 1999-12-15 | Schlumberger Technology B.V. | Leistungs- und Signalübertragung von einer isolierten Leitung für Dauerbohrloch-anlagen |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3518609A (en) * | 1968-10-28 | 1970-06-30 | Shell Oil Co | Telemetry drill pipe with ring-control electrode means |
US3866678A (en) * | 1973-03-15 | 1975-02-18 | Texas Dynamatics | Apparatus for employing a portion of an electrically conductive fluid flowing in a pipeline as an electrical conductor |
ZA823430B (en) * | 1981-05-22 | 1983-03-30 | Coal Industry Patents Ltd | Drill pipe sections |
US6763887B2 (en) * | 2002-10-23 | 2004-07-20 | Varco I/P, Inc. | Drill pipe having an internally coated electrical pathway |
-
2001
- 2001-01-22 FR FR0100798A patent/FR2819851B1/fr not_active Expired - Fee Related
-
2002
- 2002-01-18 DE DE60210235T patent/DE60210235D1/de not_active Expired - Lifetime
- 2002-01-18 AT AT02290125T patent/ATE321932T1/de not_active IP Right Cessation
- 2002-01-18 EP EP02290125A patent/EP1225301B1/de not_active Expired - Lifetime
- 2002-01-22 US US10/054,996 patent/US6952170B2/en not_active Expired - Fee Related
-
2003
- 2003-01-15 HK HK03100361.8A patent/HK1050234A1/zh unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4012092A (en) * | 1976-03-29 | 1977-03-15 | Godbey Josiah J | Electrical two-way transmission system for tubular fluid conductors and method of construction |
US4684946A (en) * | 1983-05-06 | 1987-08-04 | Geoservices | Device for transmitting to the surface the signal from a transmitter located at a great depth |
US4899834A (en) * | 1986-01-24 | 1990-02-13 | Parker Kinetic Designs, Inc. | Electromagnetic drilling apparatus |
FR2777594A1 (fr) * | 1998-04-17 | 1999-10-22 | Sol Comp Du | Installation de transmission d'informations dans un puits de forage |
EP0964134A2 (de) * | 1998-06-12 | 1999-12-15 | Schlumberger Technology B.V. | Leistungs- und Signalübertragung von einer isolierten Leitung für Dauerbohrloch-anlagen |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1434063A3 (de) * | 2002-12-23 | 2007-01-24 | Halliburton Energy Services, Inc. | Verfahren und System zur Messsignalübertragung für Bohrgestänge |
WO2011128068A2 (de) | 2010-04-12 | 2011-10-20 | Universität Siegen | Kommunikationssystem zur übertragung von informationen über bohrgestänge |
DE102010047568A1 (de) | 2010-04-12 | 2011-12-15 | Peter Jantz | Einrichtung zur Übertragung von Informationen über Bohrgestänge |
US9982529B2 (en) | 2010-04-12 | 2018-05-29 | Universitaet Siegen | Communication system for transmitting information via drilling rods |
Also Published As
Publication number | Publication date |
---|---|
ATE321932T1 (de) | 2006-04-15 |
FR2819851B1 (fr) | 2003-08-15 |
HK1050234A1 (zh) | 2003-06-13 |
FR2819851A1 (fr) | 2002-07-26 |
EP1225301B1 (de) | 2006-03-29 |
US20020113716A1 (en) | 2002-08-22 |
US6952170B2 (en) | 2005-10-04 |
DE60210235D1 (de) | 2006-05-18 |
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