WO2009062716A2 - Measurements while drilling or coring using a wireline drilling machine - Google Patents
Measurements while drilling or coring using a wireline drilling machine Download PDFInfo
- Publication number
- WO2009062716A2 WO2009062716A2 PCT/EP2008/009606 EP2008009606W WO2009062716A2 WO 2009062716 A2 WO2009062716 A2 WO 2009062716A2 EP 2008009606 W EP2008009606 W EP 2008009606W WO 2009062716 A2 WO2009062716 A2 WO 2009062716A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- drilling
- conduit
- sensors
- tool body
- properties
- Prior art date
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 48
- 238000005259 measurement Methods 0.000 title claims description 22
- 239000000463 material Substances 0.000 claims abstract description 13
- 238000005520 cutting process Methods 0.000 claims description 13
- 239000012530 fluid Substances 0.000 claims description 13
- 230000015572 biosynthetic process Effects 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 6
- 239000011435 rock Substances 0.000 claims description 5
- 230000002159 abnormal effect Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 238000005481 NMR spectroscopy Methods 0.000 claims description 2
- 230000005251 gamma ray Effects 0.000 claims description 2
- 230000005855 radiation Effects 0.000 claims description 2
- 239000011162 core material Substances 0.000 description 9
- 239000007789 gas Substances 0.000 description 6
- 238000011084 recovery Methods 0.000 description 3
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 2
- 230000004941 influx Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000001687 destabilization Effects 0.000 description 1
- 238000002593 electrical impedance tomography Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical class C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/005—Testing the nature of borehole walls or the formation by using drilling mud or cutting data
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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 the boreholes or wells
- E21B23/001—Self-propelling systems or apparatus, e.g. for moving tools within the horizontal portion of a borehole
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/04—Electric drives
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/01—Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/08—Obtaining fluid samples or testing fluids, in boreholes or wells
- E21B49/084—Obtaining fluid samples or testing fluids, in boreholes or wells with means for conveying samples through pipe to surface
Definitions
- This invention relates to techniques for making measurements during drilling or coring using a wireline drilling machine.
- the invention relates to the use of an instrumented drilling machine for making such measurements.
- US6788066 discloses such a system in which sensors for making electromagnetic propagation measurements are provided on the inside of downhole cylindrical enclosure for measuring properties of drilled cores such as resistivity/conductivity of pore fluid, dielectric constant of rock matrix and water- filled porosity.
- a first aspect of this invention provides a drilling system for drilling underground boreholes, comprising:
- the tool body includes a conduit connected to the drill bit such that drilled material passes from the drill bit through the conduit, and sensors are provided in the conduit for measuring properties of the drilled material.
- the system preferably also comprises a pumping system which is operable to pump drilling fluid through the bit and conduit.
- the bit can be provided with a central aperture so as to drill cores.
- the sensors measure the properties of the core.
- the bit can be configured to create cuttings.
- the sensors measure the properties of drilled cuttings and any drilling fluids passing through the conduit.
- the sensors are arranged around the periphery of the conduit. This can allow tomographic measurements across the whole section of the conduit.
- the sensors can be arranged to measure resistivity, electromagnetic propagation, acoustic response, natural radioactivity, gamma ray, neutron and x-ray radiation, and nuclear magnetic resonance. These measurements can be used to obtain rock and pore fluid petrophysical and chemical properties.
- a second aspect of the invention comprises a method of drilling a borehole using a system according to the first aspect of the invention, the method comprising:
- the measured properties can be used to provide detection of events such as gas kicks and abnormal cuttings size.
- Figure 1 shows a drilling tool according to an embodiment of the invention.
- the drilling tool shown therein comprises a tool body 10 that is lowered into a borehole 12 on a cable 14.
- the borehole can be, for example, a lateral borehole drilled from a main borehole, such as might be used to enhance production or reach bypassed production zones.
- the cable 14 provides electrical power and, optionally, data for controlling the tool and retrieving operational and measurement data.
- an umbilical including tubular conduits as well as the electrical cable may be used.
- a drilling motor 16 is provided at the end of the tool body 10. Power for the motor is provided by the cable 14. Alternatively, a motor driven by fluid flow can be used but this requires some means of pumping fluid into the motor.
- a drill bit 18 is mounted on the tool body 10 so as to be driveable by the motor 16.
- a tractor mechanism 20 is provided at the other end of the tool body 10. This mechanism can be similar to that described in EP04292251.8 and PCT/EP04/01167 and can operate to advance the tool body along the borehole.
- a central flow passage 22 extends through the bit 18 and body 10 to exit at the rear of the tool.
- An array of sensors 24 is provided along and around the flow passage 22.
- a particularly preferred form of sensor is an electrode for performing electrical impedance tomography (as will be discussed in more detail below) although other sensors such as optical sensor can also be used.
- Other sensors are also provided for drilling measurements (TOR, WOB, RPM, ROP, DOC) and direction and inclination measurements in the usual manner.
- the tool In use, the tool is lowered into the borehole and the tractor 20 operated to advance the tool along the borehole 12.
- the motor 16 is operated to rotate the bit which drills ahead when contacting the formation at the end of the borehole.
- Drilling fluid 26 is pumped around the outside of the tool so as to flow through the bit and along the passage 22.
- the tool is operated so that the bit creates cuttings of the drilled material which are carried with the flow of drilling fluid up inside the passage 22 and past the sensors 24.
- measurements are made along the array and around the passage so as to provide a tomographic measurement of the flow. These measurements can be used as a raw image or processed to identify particular events. Examples of the events that can be identified by such measurements include gas kicks (gas influx from the formation) or the presence of abnormal cuttings (which can potentially damage the downhole equipment or indicate drilling problems).
- sensors that can be used include ultrasonic sensors that can be used for imaging purposes. Chemical sensors can also be used to detect compositional changes in the drilling fluid that can be indicative of drilling through certain types of formation or H 2 S risk detection. A combination of a variety of sensors measurements and a data processing apparatus may be used to resolve ambiguous events in the flow. For example, while an increased impedance may be an ambiguous signal of either a gas bubble or of a sizeable hard rock cutting, this ambiguity is resolved for example by the simultaneous signal of pressure sensors along the path of the flow , or by images from ultrasonic sensors.
- the bit is arranged to drill a solid core from the formation, which passes into the passage.
- the sensors measure the formation properties directly. This has the advantage that it avoids the presence of measurement artefacts that arise due to core decompression and core recovery that can arise when making such measurements at the surface after retrieving the core from downhole. It will be understood that a combination of several arrays of sensors may likewise provide a better petrophysical evaluation of the core material.
- wireline cable allows data recovery at high data rates when compared to previous coring while drilling applications. Also , that data is acquired very close to the depth at which rock is being drilled, and close to instantaneously transmitted at surface, allowing a fast and precise reaction to equipment and human safety hazards in the drilling operation such as : abnormal drill cuttings, gas kicks, sour (hydrogen sulfide) gas influx.
- Another drilling risk that can be monitored by such apparatus is the risk (under some specific mud, temperature and pressure conditions) of formation of solid methane hydrates in the mud, that would lead to a loss of the mud rheological properties, plugging of the flow lines and further destabilization of the drilling and pressure control system.
Abstract
A drilling system for drilling underground boreholes, comprising a tool body; a downhole motor; a drill bit mounted on the body to be driven by the motor; a mechanism for driving the tool body axially along the borehole so as to apply weight on the drill bit when drilling; and an electrical cable extending from the surface to the tool body to provide power for the drilling motor; wherein the tool body includes a conduit connected to the drill bit such that drilled material passes from the drill bit through the conduit, and sensors are provided in the conduit for measuring properties of the drilled material.
Description
Description
MEASUREMENTS WHILE DRILLING OR CORING USING A WIRELINE
DRILLING MACHINE Technical field
[0001] This invention relates to techniques for making measurements during drilling or coring using a wireline drilling machine. In particular, the invention relates to the use of an instrumented drilling machine for making such measurements.
Background art
[0002] Measurements while coring has been previously proposed for conventional drilling applications. US6788066 discloses such a system in which sensors for making electromagnetic propagation measurements are provided on the inside of downhole cylindrical enclosure for measuring properties of drilled cores such as resistivity/conductivity of pore fluid, dielectric constant of rock matrix and water- filled porosity.
[0003] Recent proposals for drilling underground boreholes have included the use of a wireline drilling machine. Such machines differ from conventional jointed pipe or coiled tubing drilling in that there is no mechanical link to the surface to provide weight on bit. The drilling machine is provided with power which it must convert into weight on bit itself, for example by use of a downhole tractor type device.
Disclosure of the invention
[0004] A first aspect of this invention provides a drilling system for drilling underground boreholes, comprising:
- a tool body;
- a downhole motor;
- a drill bit mounted on the body to be driven by the motor;
- a mechanism for driving the tool body axially along the borehole so as to apply weight on the drill bit when drilling; and
- an electrical cable extending from the surface to the tool body to provide power for the drilling motor; wherein the tool body includes a conduit connected to the drill bit such that drilled material passes from the drill bit through the conduit, and sensors are provided in the conduit for measuring properties of the drilled material.
[0005] The system preferably also comprises a pumping system which is operable to pump drilling fluid through the bit and conduit.
[0006] The bit can be provided with a central aperture so as to drill cores. In this case, the sensors measure the properties of the core. In another, the bit can be configured to create cuttings. In this case, the sensors measure the properties of drilled cuttings and any drilling fluids passing through the conduit.
[0007] It is particularly preferred that the sensors are arranged around the periphery of the conduit. This can allow tomographic measurements across the whole section of the conduit.
[0008] The sensors can be arranged to measure resistivity, electromagnetic propagation, acoustic response, natural radioactivity, gamma ray, neutron and x-ray radiation, and nuclear magnetic resonance. These measurements can be used to obtain rock and pore fluid petrophysical and chemical properties.
[0009] A second aspect of the invention comprises a method of drilling a borehole using a system according to the first aspect of the invention, the method comprising:
- operating the drilling system so as to drill through the underground formation;
- passing drilled material through the conduit; and
- measuring properties of the drilled material using the sensors.
[0010] The measured properties can be used to provide detection of events such as gas kicks and abnormal cuttings size.
Brief description of the drawings
[0011] Figure 1 shows a drilling tool according to an embodiment of the invention.
Mode(s) for carrying out the invention
[0012] Referring now to Figure 1 , the drilling tool shown therein comprises a tool body 10 that is lowered into a borehole 12 on a cable 14. The borehole can be, for example, a lateral borehole drilled from a main borehole, such as might be used to enhance production or reach bypassed production zones. The cable 14 provides electrical power and, optionally, data for controlling the tool and retrieving operational and measurement data. In certain cases, an umbilical including tubular conduits as well as the electrical cable may be used. A drilling motor 16 is provided at the end of the tool body 10. Power for the motor is provided by the cable 14. Alternatively, a motor driven by fluid flow can be used but this requires some means of pumping fluid into the motor. A drill bit 18 is mounted on the tool body 10 so as to be driveable by the motor 16. A tractor mechanism 20 is provided at the other end of the tool body 10. This mechanism can be similar to
that described in EP04292251.8 and PCT/EP04/01167 and can operate to advance the tool body along the borehole.
[0013] A central flow passage 22 extends through the bit 18 and body 10 to exit at the rear of the tool. An array of sensors 24 is provided along and around the flow passage 22. A particularly preferred form of sensor is an electrode for performing electrical impedance tomography (as will be discussed in more detail below) although other sensors such as optical sensor can also be used. Other sensors (not shown) are also provided for drilling measurements (TOR, WOB, RPM, ROP, DOC) and direction and inclination measurements in the usual manner.
[0014] In use, the tool is lowered into the borehole and the tractor 20 operated to advance the tool along the borehole 12. The motor 16 is operated to rotate the bit which drills ahead when contacting the formation at the end of the borehole. Drilling fluid 26 is pumped around the outside of the tool so as to flow through the bit and along the passage 22. In one configuration, the tool is operated so that the bit creates cuttings of the drilled material which are carried with the flow of drilling fluid up inside the passage 22 and past the sensors 24. As the drilling fluids and cuttings pass the array of sensors, measurements are made along the array and around the passage so as to provide a tomographic measurement of the flow. These measurements can be used as a raw image or processed to identify particular events. Examples of the events that can be identified by such measurements include gas kicks (gas influx from the formation) or the presence of abnormal cuttings (which can potentially damage the downhole equipment or indicate drilling problems).
[0015] Other sensors that can be used include ultrasonic sensors that can be used for imaging purposes. Chemical sensors can also be used to detect compositional changes in the drilling fluid that can be indicative of drilling through certain types of formation or H2S risk detection. A combination of a variety of sensors measurements and a data processing apparatus may be used to resolve ambiguous events in the flow. For example, while an increased impedance may be an ambiguous signal of either a gas bubble or of a sizeable hard rock cutting, this ambiguity is resolved for example by the simultaneous signal of pressure sensors along the path of the flow , or by images from ultrasonic sensors.
[0016] In another configuration, the bit is arranged to drill a solid core from the formation, which passes into the passage. In this case, the sensors measure the
formation properties directly. This has the advantage that it avoids the presence of measurement artefacts that arise due to core decompression and core recovery that can arise when making such measurements at the surface after retrieving the core from downhole. It will be understood that a combination of several arrays of sensors may likewise provide a better petrophysical evaluation of the core material.
[0017] A number of other benefits can also be obtained. The presence of the wireline cable allows data recovery at high data rates when compared to previous coring while drilling applications. Also , that data is acquired very close to the depth at which rock is being drilled, and close to instantaneously transmitted at surface, allowing a fast and precise reaction to equipment and human safety hazards in the drilling operation such as : abnormal drill cuttings, gas kicks, sour (hydrogen sulfide) gas influx.
[0018] Another drilling risk that can be monitored by such apparatus is the risk (under some specific mud, temperature and pressure conditions) of formation of solid methane hydrates in the mud, that would lead to a loss of the mud rheological properties, plugging of the flow lines and further destabilization of the drilling and pressure control system.
[0019] Traditional mud logging operations rely on measurement on the mud and cuttings materials transported by the mud flow at surface , introducing both a sizeable time delay and a significant error on the origin depth of these materials and related events: the use of such wireline drilling machine with embedded mud and cutting measurements minimizes both delay and depth error. The use of a wireline drilling machine makes the recovery of cores from extended laterals possible, something that has not been possible to date using conventional coring technology due to its limited reach away from the main well.
[0020] Further changes within the scope of the invention will be apparent.
Claims
1. A drilling system for drilling underground boreholes, comprising:
- a tool body;
- a downhole motor;
- a drill bit mounted on the body to be driven by the motor;
- a mechanism for driving the tool body axially along the borehole so as to apply weight on the drill bit when drilling; and
- an electrical cable extending from the surface to the tool body to provide power for the drilling motor; wherein the tool body includes a conduit connected to the drill bit such that drilled material passes from the drill bit through the conduit, and sensors are provided in the conduit for measuring properties of the drilled material.
2. A system as claimed in claim 1, further comprising a pumping system which is operable to pump drilling fluid through the bit and conduit.
3. A system as claimed in claim 1 or 2, wherein the bit is provided with a central aperture so as to drill cores.
4. A system as claimed in claim 3, wherein the sensors measure the properties of the core.
5. A system as claimed in claim 1 or 2, wherein the bit is configured to create cuttings.
6. A system as claimed in claim 5, wherein the sensors measure the properties of drilled cuttings and any drilling fluids passing through the conduit.
7. A system as claimed in claim 1 wherein the sensors are arranged around the periphery of the conduit.
8. A system as claimed in claim 7, wherein the sensors are configures to provide tomographic measurements across the whole section of the conduit.
9. A system as claimed in any preceding claim, wherein the sensors measure resistivity, electromagnetic propagation, acoustic response, natural radioactivity, gamma ray, neutron and x-ray radiation, and/or nuclear magnetic resonance.
10. A system as claimed in claim 9 wherein the measurements are used to obtain rock and pore fluid petrophysical and chemical properties.
11. A method of drilling a borehole using a system as claimed in any preceding claim, the method comprising:
- operating the drilling system so as to drill through the underground formation;
- passing drilled material through the conduit; and
- measuring properties of the drilled material using the sensors.
12. A method as claimed in claim 11, wherein measured properties are used to provide detection of gas kicks and abnormal cuttings size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12/742,454 US20100276197A1 (en) | 2007-11-15 | 2008-11-06 | Measurements while drilling or coring using a wireline drilling machine |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0722444.7A GB2454699B (en) | 2007-11-15 | 2007-11-15 | Measurements while drilling or coring using a wireline drilling machine |
| GB0722444.7 | 2007-11-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2009062716A2 true WO2009062716A2 (en) | 2009-05-22 |
| WO2009062716A3 WO2009062716A3 (en) | 2010-10-07 |
Family
ID=38896368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2008/009606 WO2009062716A2 (en) | 2007-11-15 | 2008-11-06 | Measurements while drilling or coring using a wireline drilling machine |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20100276197A1 (en) |
| GB (1) | GB2454699B (en) |
| WO (1) | WO2009062716A2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103415985A (en) * | 2010-12-13 | 2013-11-27 | 普拉德研究及开发股份有限公司 | Measuring speed of rotation of downhole motor |
| US8797035B2 (en) | 2011-11-09 | 2014-08-05 | Halliburton Energy Services, Inc. | Apparatus and methods for monitoring a core during coring operations |
| US8854044B2 (en) | 2011-11-09 | 2014-10-07 | Haliburton Energy Services, Inc. | Instrumented core barrels and methods of monitoring a core while the core is being cut |
| US9328573B2 (en) | 2009-10-05 | 2016-05-03 | Halliburton Energy Services, Inc. | Integrated geomechanics determinations and wellbore pressure control |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011127374A1 (en) * | 2010-04-09 | 2011-10-13 | Bp Corporation North America Inc. | Apparatus and methods for detecting gases during coring operations |
| WO2014035426A1 (en) | 2012-08-31 | 2014-03-06 | Halliburton Energy Services, Inc. | System and method for detecting vibrations using an opto-analytical device |
| US10012067B2 (en) | 2012-08-31 | 2018-07-03 | Halliburton Energy Services, Inc. | System and method for determining torsion using an opto-analytical device |
| US9945181B2 (en) | 2012-08-31 | 2018-04-17 | Halliburton Energy Services, Inc. | System and method for detecting drilling events using an opto-analytical device |
| CA2883247C (en) | 2012-08-31 | 2017-12-12 | Halliburton Energy Services, Inc. | System and method for analyzing cuttings using an opto-analytical device |
| US9885234B2 (en) | 2012-08-31 | 2018-02-06 | Halliburton Energy Services, Inc. | System and method for measuring temperature using an opto-analytical device |
| US10167718B2 (en) | 2012-08-31 | 2019-01-01 | Halliburton Energy Services, Inc. | System and method for analyzing downhole drilling parameters using an opto-analytical device |
| EP2877670A4 (en) | 2012-08-31 | 2016-07-27 | Halliburton Energy Services Inc | System and method for measuring gaps using an opto-analytical device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999000575A2 (en) * | 1997-06-27 | 1999-01-07 | Baker Hughes Incorporated | Drilling system with sensors for determining properties of drilling fluid downhole |
| US6003620A (en) * | 1996-07-26 | 1999-12-21 | Advanced Coring Technology, Inc. | Downhole in-situ measurement of physical and or chemical properties including fluid saturations of cores while coring |
| US20010050559A1 (en) * | 2000-01-19 | 2001-12-13 | Wisler Macmillan M. | Resistivity and dielectric constant well core measurement system for measurement while drilling and laboratory |
| WO2002084065A2 (en) * | 2001-04-02 | 2002-10-24 | Tracto-Technik Gmbh | Drilling head of a drilling device, particularly a wash drilling head of a horizontal drilling device |
| US20050103527A1 (en) * | 2003-11-13 | 2005-05-19 | Church Kris L. | Dual wall drill string assembly |
| GB2433273A (en) * | 2005-12-19 | 2007-06-20 | Schlumberger Holdings | Measurements of downhole mud samples |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8132630B2 (en) * | 2002-11-22 | 2012-03-13 | Baker Hughes Incorporated | Reverse circulation pressure control method and system |
| GB0329712D0 (en) * | 2003-12-22 | 2004-01-28 | Bp Exploration Operating | Process |
| DE102004003481B4 (en) * | 2004-01-22 | 2007-01-25 | Dtb Patente Gmbh | Measuring device and drilling device for deep drilling and method for measuring relevant data in deep wells |
| CA2627284A1 (en) * | 2005-10-27 | 2007-05-03 | Shell Canada Limited | Extended reach drilling apparatus and method |
| US8162080B2 (en) * | 2007-09-25 | 2012-04-24 | Baker Hughes Incorporated | Apparatus and methods for continuous coring |
-
2007
- 2007-11-15 GB GB0722444.7A patent/GB2454699B/en not_active Expired - Fee Related
-
2008
- 2008-11-06 US US12/742,454 patent/US20100276197A1/en not_active Abandoned
- 2008-11-06 WO PCT/EP2008/009606 patent/WO2009062716A2/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6003620A (en) * | 1996-07-26 | 1999-12-21 | Advanced Coring Technology, Inc. | Downhole in-situ measurement of physical and or chemical properties including fluid saturations of cores while coring |
| WO1999000575A2 (en) * | 1997-06-27 | 1999-01-07 | Baker Hughes Incorporated | Drilling system with sensors for determining properties of drilling fluid downhole |
| US20010050559A1 (en) * | 2000-01-19 | 2001-12-13 | Wisler Macmillan M. | Resistivity and dielectric constant well core measurement system for measurement while drilling and laboratory |
| WO2002084065A2 (en) * | 2001-04-02 | 2002-10-24 | Tracto-Technik Gmbh | Drilling head of a drilling device, particularly a wash drilling head of a horizontal drilling device |
| US20050103527A1 (en) * | 2003-11-13 | 2005-05-19 | Church Kris L. | Dual wall drill string assembly |
| GB2433273A (en) * | 2005-12-19 | 2007-06-20 | Schlumberger Holdings | Measurements of downhole mud samples |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9328573B2 (en) | 2009-10-05 | 2016-05-03 | Halliburton Energy Services, Inc. | Integrated geomechanics determinations and wellbore pressure control |
| CN103415985A (en) * | 2010-12-13 | 2013-11-27 | 普拉德研究及开发股份有限公司 | Measuring speed of rotation of downhole motor |
| CN103415985B (en) * | 2010-12-13 | 2016-06-22 | 普拉德研究及开发股份有限公司 | Measure the rotating speed of down-hole motor |
| US8797035B2 (en) | 2011-11-09 | 2014-08-05 | Halliburton Energy Services, Inc. | Apparatus and methods for monitoring a core during coring operations |
| US8854044B2 (en) | 2011-11-09 | 2014-10-07 | Haliburton Energy Services, Inc. | Instrumented core barrels and methods of monitoring a core while the core is being cut |
Also Published As
| Publication number | Publication date |
|---|---|
| GB0722444D0 (en) | 2007-12-27 |
| WO2009062716A3 (en) | 2010-10-07 |
| GB2454699A (en) | 2009-05-20 |
| US20100276197A1 (en) | 2010-11-04 |
| GB2454699B (en) | 2012-08-15 |
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