WO2021170896A1 - Herramienta, sistema y procedimiento para la orientación de muestras de núcleo en la perforación de pozos - Google Patents
Herramienta, sistema y procedimiento para la orientación de muestras de núcleo en la perforación de pozos Download PDFInfo
- Publication number
- WO2021170896A1 WO2021170896A1 PCT/ES2021/070147 ES2021070147W WO2021170896A1 WO 2021170896 A1 WO2021170896 A1 WO 2021170896A1 ES 2021070147 W ES2021070147 W ES 2021070147W WO 2021170896 A1 WO2021170896 A1 WO 2021170896A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tool
- orientation
- processing unit
- core
- rotation
- Prior art date
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title description 19
- 238000012545 processing Methods 0.000 claims abstract description 31
- 238000005259 measurement Methods 0.000 claims description 38
- 238000004891 communication Methods 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 description 24
- 239000000523 sample Substances 0.000 description 15
- 230000008569 process Effects 0.000 description 10
- 230000008901 benefit Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 5
- 241001449342 Chlorocrambe hastata Species 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 230000002123 temporal effect Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000013480 data collection Methods 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000012550 audit Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
- E21B7/10—Correction of deflected boreholes
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
- E21B25/16—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors for obtaining oriented cores
-
- 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
- E21B47/02—Determining slope or direction
- E21B47/022—Determining slope or direction of the borehole, e.g. using geomagnetism
-
- 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
- E21B47/02—Determining slope or direction
- E21B47/024—Determining slope or direction of devices in the borehole
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C19/00—Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
- G01C19/56—Turn-sensitive devices using vibrating masses, e.g. vibratory angular rate sensors based on Coriolis forces
- G01C19/5607—Turn-sensitive devices using vibrating masses, e.g. vibratory angular rate sensors based on Coriolis forces using vibrating tuning forks
- G01C19/5621—Turn-sensitive devices using vibrating masses, e.g. vibratory angular rate sensors based on Coriolis forces using vibrating tuning forks the devices involving a micromechanical structure
Definitions
- the present invention is related to a measurement tool for mining prospecting that combines the operation of orientation of the core in diamond drilling simultaneously with that of continuous measurement of the trajectory of the well when extracting the core (CoreRetriever).
- the purpose of diamond drilling is to extract a sample or “core” from the ground being drilled to carry out an analysis of the geological formations present in the subsoil.
- trajectory measurement tools for prospecting wells have also evolved.
- the technology included in the trajectory measurement tools allows obtaining the positioning data of the well at all times.
- This technology consists of an accessory that is attached to the core hole that collects the core sample from the ground and that once the drilling is finished takes a period of time to record the angular orientation data of the core with respect to the ground.
- This tool through accelerometers, is capable of making a spatial positioning of the core, determining, once the core hole has been rescued on the surface, what position the core had when it was extracted from the ground and thus facilitating subsequent modeling for geological analysis.
- Core or core orientation tools are only capable of extracting core orientation angular data at the bottom of the hole and, therefore, are not capable of defining the trajectory, that is, the azimuth that each point of the wellbore presents with with respect to a known and fixed reference (True North).
- the gyroscopic technology mentioned in the document is for reference, this means that the gyroscopes installed in the device are not able to find the geographic north by themselves, but must be given a value to refer to. This type of technology clearly induces human error during operation.
- the referred document also describes how the tool could be used to determine the trajectory of the entire well by means of each one of the unique shots that it would take, thus calculating the azimuth and inclination values each time the orientation operation is carried out.
- each and every one of these unique shots are taken with reference to the starting point on the collar (orientation of the machine on the surface), and to know this value, another tool with absolute gyroscopic technology must be available, capable of finding the right one. geographic north, or being exposed to error adhering to the use of less precise technology.
- Core or core orientation technology has not undergone further modifications or evolutions, while trajectory measurement tool technology has.
- the equipment with the magnetic operating principle and single shot is lowered to record the angular deviation data in the horizontal plane (azimuth) and in the vertical plane (inclination) of that point.
- the equipment must be recovered on the surface, the drillstring must be reintroduced to the bottom of the hole, another internal core bit tube (CoreBarrel) must be inserted and another section of drilling continued.
- multi-shot the technology known as multi-shot (“multishot” in English) was born. The main contribution of this method was the possibility of taking several data points during the same incursion of the tool into the well.
- the tool could be lowered by stopping every certain interval (for example, every 20 meters) to record the deviation data at those points and finally build the trajectory model of said well. water well.
- every certain interval for example, every 20 meters
- Core retriever As a solution to the loss of time that involves the need to prepare the well to measure with the magnetic tool (lift the crown to avoid magnetic interference), the technology known as core retriever (“Core retriever” in English) was developed. This type of tools with gyroscopic operating principle are equipped at both ends with the commercial Overshot and spearhead parts (“Spearhead” in English). By having this design, it is possible to reduce inoperative times for preparing the well since an operation is saved. In the same operation in which the equipment is lowered to the bottom of the hole and the point is taken with the angular deviation data (azimuth and inclination), it is possible to recover the core bit with the core sample inside.
- the present invention provides a tool for the orientation of core samples extracted in the drilling of wells, the tool that is of an absolute gyroscopic nature, (True North Seeking Gyro in English), which It allows carrying out the operations of measuring the trajectory or spatial positioning of the well (azimuth and inclination) and orientation of the core or core sample in a single operation.
- the tool of the invention in one embodiment is configured to be coupled, for example, in a threaded way, to the core bit (CoreBarrel in English) at one end and at an end opposite to the previous one it is configured to be coupled to the head assembly ( Head Assembly), so that, once the drilling is complete and the core sample has been detached and deposited inside the core bit, an bypass assembly can be launched from the surface to proceed with the removal of the core sample to the surface.
- the tool proposed in the invention will be recording data both on the relative orientation of the core with respect to the ground and on the angular deviation (azimuth and inclination).
- an order is given to the tool through a portable device, such as a smartphone, tablet or similar, to start the measurements and / or detections (the data will be correlated using “time stamping”) and the bypass tool will be lowered to rescue the core bit with the core sample inside.
- a portable device such as a smartphone, tablet or similar
- the main advantage achieved with the technology developed in the proposed tool is to improve the efficiency in the operation of determining the trajectory of the well and the orientation of the core since it is possible to reduce operations with which time is saved by completely eliminating the exclusive time of measurement and integrating the measurement operation together with the drilling operation, which directly affects a reduction in the costs associated with the operation.
- Another advantage of the tool of the invention is its multifunctionality, managing to integrate in a single tool the tasks that are currently done with different tools and separate technologies, for example, core orientation plus single-shot measurement of azimuth and inclination (configuration standard), core orientation only, core orientation plus continuous measurement, or continuous measurement only.
- Gyro Tool Face data can be used to find the orientation of the core in these wells.
- Figure 1 shows an exploded view of a drillstring in which the tool for the orientation of core samples extracted in the drilling of wells is attached.
- Figure 2 shows a perspective view of the tip of the drillstring where the tool for the orientation of core samples extracted in the drilling of wells of the invention is attached.
- the invention provides a tool 1 for the orientation of core samples in well drilling, intended to be coupled to a core bit 7 and / or to the cable of a head assembly 2 of a drillstring , where the tool 1 at least comprises electronic processing means provided with at least one communication means connected to a processing unit, and a set of triaxial accelerometers orthogonally coupled to each other in data communication with the processing unit, configured to recording data of the instantaneous movement and / or instantaneous vibration of the tool 1 and transmitting it to the processing unit.
- the tool 1 also comprises a set of micromechanical gyroscopes arranged orthogonally to each other, in data communication with the processing unit, where the arrangement of said set of micromechanical gyroscopes allows them to rotate in relation to an axis of rotation of the tool 1 to record the instantaneous orientation of said tool and / or core sample and transmit them to the processing unit.
- said processing unit is configured to calculate the orientation of the core sample with respect to north. absolutely true and the continuous trajectory of the drilled well.
- the design of the tool 1 for the orientation of core samples will be such that it can be coupled to the head assembly assembly 7 and / or the cable head assembly 2 (Cable Head Assembly) through adapters 5 and 6 to allow its operation. during the well drilling operation.
- the tool 1 is designed to position the overshot adapter fittings 4 and the spearhead to retrieve the core sample after drilling.
- the invention is a tool for determining the orientation of the samples obtained in a borehole with respect to the subsoil environment at the time it is removed from it, although, alternatively, it could be used when the drilling head is making the water well.
- the invention consists of two tools for measurement (used alternately) and a portable device or hand held device arranged on the surface in data connection with the tool 1.
- the tool 1 consists of a tubular structure that protects the electronic processing means provided inside it during operation.
- the electronics or electronic processing means of the tool 1 comprise at least one control module in charge of minimizing the noise that can be generated in the signals of the sensors (triaxial accelerometers and micromechanical gyroscopes) due to the nature of the operation, a module acquisition system made up of at least one set of orthogonally distributed MEMS micromechanical gyroscopes and a set of triaxial accelerometers with the same distribution, a power regulation module that will be in charge of feeding the rest of the circuits, a communication module or means of communication. communication configured to transmit and / or receive data from the portable surface device and a processing unit configured to process all the data from the detection signals coming from the sensors and calculate the orientation of the core sample with with respect to true north in an absolute way and the continuous trajectory of the drilled well.
- Tool 1 is configured to determine the orientation (angular position with respect to the gravitational vector, or in with respect to true north, for example, in totally vertical wells or very close to vertical) of the sample or core extracted from the subsoil, and also the trajectory or angular position of each of the points of the trajectory of the well with respect to True North (azimuth).
- MEMS micromechanical gyroscopes used together with the electronics that accompanies them allows to obtain the positioning data with respect to True North in an absolute way, that is, no reference has to be entered in the wellhead or any other value known as if necessary in the rest of the existing technology.
- the processing unit is configured to, based on the rotation of the micromechanical gyroscopes at discrete angles, self-compensate the detection signals of the micromechanical gyros from the filtration and iterative purification of said detection signals.
- This self-compensation carried out by the processing unit is to maximize the quality and precision of the tool 1 by self-compensation of the signals based on the rotation of the micromechanical gyros around the axis of the tool itself and through discrete angles. By repeating these self-compensating cycles, the signals are further filtered and refined, resulting in a cleaner, more precise and accurate output of the Absolute or True North.
- MEMS gyros have the best performance with respect to stability and resistance to mechanical loads.
- micromechanical gyro technology is the best choice.
- No other type of gyro device withstands prolonged mechanical loads. This makes its applications in the oil, gas and mining sectors impossible.
- MEMS gyroscopes currently known have poor characteristics in terms of time and temperature drift of the zero signal. This circumstance is a problem of its direct use and requires, therefore, the development of new methods or procedures, in parallel with the implementation of hardware to improve the accuracy of gyroscopic instruments using MEMS micromechanical gyros, which will be described below.
- the self-compensation is carried out by a self-compensation device of the tool 1 comprised of a structure, in the form of a rotating platform, on which the interperpendicular micromechanical gyroscopes, the triaxial accelerometers and a direct current motor are installed.
- the rotor of the DC motor is fixed in the outer tube that represents the housing for the device and the tool itself.
- the casing can rotate and stop in two different fixed positions comprising an angle of 180 degrees between said positions, which is obtained by two limits physically defined in the mechanical structure.
- the motor current is measured and voltage is cut when this current increases more than a previously defined value.
- the physically intrinsic property of the motor is used to increase the current when the load on the motor increases. What is described allows to carry out auto compensation with minimum complexity and quantity of elements composed of the entire system.
- both gyroscopes and accelerometers are mounted on the turntable which preferably has one degree of freedom.
- this design allows parallel operation of the instrument in two modes: directional gyroscope and true north gyro.
- the rig at certain points of time can be rotated by the motor, in particular, as said, a direct current motor or, alternatively, by suitable means of rotation, for example, taking advantage of the rotation of the drillstring or of the tool to transmit said rotation to the platform.
- the axis of rotation of the platform coincides with the longitudinal axis of the drilling instrument and is orthogonal to two of the three measurement axes of the MEMS gyros.
- the triaxial accelerometers are placed in the same mobile structure or mobile housing as the micromechanical gyroscopes allows to control the angle of rotation and check that the device works correctly.
- Some ways to improve accuracy in gyro mode are to organize the platform during work by making 180 degree cyclical turns around the axis. longitudinal drift of the drilling instrument (Z axis) and / or of the tool because the monotonous temporal drift of the gyros in the "steering gyroscope" inclinometer operating mode is converted into a variable drift of the navigational angles: angle antiaircraft and azimuth. Ultimately, the relationship of angular velocities involving slow-changing temporal deviations and sailing angles can be described as follows:
- Incl Az - navigational angles, azimuth and zenith; ax (t), ay (t) - projections of the vector of the gravitational field of the Earth on the axes of instruments perpendicular to the axes of rotation; wx (t), wy (t) - projection of the angular speed of rotation of the inclinometer on the axes of the instrument; tc, tg - are components of the time drift of gyroscopes; fel, k2 - are proportionality coefficients that depend on the current value of the anti-aircraft angle.
- ax (t) k * sin (TF + y (t))
- w H3M W + t ( ⁇ ) + t (T)
- w H3M - the measured gyroscope signal consisting of the measured angular velocity w, the time drift t ( ⁇ ) and the temperature drift t (T) .
- the 3 minute time drift can be considered constant.
- the same temperature component can change significantly during the measurement process. Due to the presence of hysteresis in the MEMS gyroscope zero drift temperature characteristics, traditional methods of approximating temperature dependencies with curves of different orders, and then taking them into account, it is not possible to get rid of the effects of change of temperature for gyroscopic inclinometers on MEMS gyros with the correct degree of precision.
- the deviation from zero develops monotonic, it can almost always be approximated by linear dependence.
- the idea of repeating the measurement in position 0 allows estimating the deviation in time and bringing the measurements in position 0 to the measurement in position 180.
- processing measurements with formula (2) eliminates temporal drift, and with a monotonous change in temperature during measurement, temperature drift is also compensated, improving measurement accuracy in mode. gyro without the need for expensive calibration procedures and complex mathematical algorithms to correct for temperature dependencies with hysteresis.
- the measurement is modeled at constant temperature, completely eliminating the errors related to temperature change during the north search and other errors that develop linearly in time during the north search.
- the fact that the triaxial accelerometers are housed in the same structure with the micromechanical gyroscopes allows to measure in the continuous mode moving the tool in the well and to carry out auto compensation of the deviations without the need to stop the movement.
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Geochemistry & Mineralogy (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Geophysics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Gyroscopes (AREA)
- Sampling And Sample Adjustment (AREA)
- Geophysics And Detection Of Objects (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US17/802,769 US11939830B2 (en) | 2020-02-28 | 2021-03-01 | Tool, system and method for orienting core samples during borehole drilling |
CA3167925A CA3167925A1 (en) | 2020-02-28 | 2021-03-01 | Tool, system and method for orienting core samples during borehole drilling |
AU2021227284A AU2021227284A1 (en) | 2020-02-28 | 2021-03-01 | Tool, system and method for orienting core samples during borehole drilling |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES202030169A ES2820674A1 (es) | 2020-02-28 | 2020-02-28 | Herramienta, sistema y procedimiento para la orientacion de muestras de nucleo en la perforacion de pozos |
ESP202030169 | 2020-02-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2021170896A1 true WO2021170896A1 (es) | 2021-09-02 |
Family
ID=75492916
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/ES2021/070147 WO2021170896A1 (es) | 2020-02-28 | 2021-03-01 | Herramienta, sistema y procedimiento para la orientación de muestras de núcleo en la perforación de pozos |
Country Status (5)
Country | Link |
---|---|
US (1) | US11939830B2 (es) |
AU (1) | AU2021227284A1 (es) |
CA (1) | CA3167925A1 (es) |
ES (1) | ES2820674A1 (es) |
WO (1) | WO2021170896A1 (es) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES1280689Y (es) * | 2021-09-29 | 2022-01-28 | Stockholm Prec Tools S L | Dispositivo y sistema para la orientacion de muestras de nucleo |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008113127A1 (en) | 2007-03-19 | 2008-09-25 | 2Ic Australia Pty Ltd | A core orientation tool |
WO2014053012A1 (en) * | 2012-10-05 | 2014-04-10 | Minnovare Pty Ltd | Core orientation apparatus |
AU2015261610A1 (en) * | 2012-09-19 | 2015-12-17 | Reservoir Nominees Pty Ltd | Multifunction orientation system with failover measurement system |
WO2017132736A1 (en) * | 2016-02-04 | 2017-08-10 | Imdex Global B.V. | Method and system for enabling at surface core orientation data transfer |
CA3034082A1 (en) * | 2018-02-19 | 2019-08-19 | Borecam Asia Pte Ltd. | Method of obtaining borehole and core orientation measurements in a single run and apparatus for performing the method |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5408877A (en) * | 1992-03-16 | 1995-04-25 | The Charles Stark Draper Laboratory, Inc. | Micromechanical gyroscopic transducer with improved drive and sense capabilities |
US6315062B1 (en) * | 1999-09-24 | 2001-11-13 | Vermeer Manufacturing Company | Horizontal directional drilling machine employing inertial navigation control system and method |
US8065087B2 (en) * | 2009-01-30 | 2011-11-22 | Gyrodata, Incorporated | Reducing error contributions to gyroscopic measurements from a wellbore survey system |
WO2015054432A1 (en) * | 2013-10-08 | 2015-04-16 | Fastcap Systems Corporation | Dynamics monitoring system with rotational sensor |
SE538872C2 (en) * | 2015-05-04 | 2017-01-17 | Lkab Wassara Ab | Gyro-based surveying tool and method for surveying |
CN110392836A (zh) * | 2017-02-21 | 2019-10-29 | Hrl实验室有限责任公司 | 基于mems的传感器套件 |
-
2020
- 2020-02-28 ES ES202030169A patent/ES2820674A1/es active Pending
-
2021
- 2021-03-01 US US17/802,769 patent/US11939830B2/en active Active
- 2021-03-01 WO PCT/ES2021/070147 patent/WO2021170896A1/es active Application Filing
- 2021-03-01 CA CA3167925A patent/CA3167925A1/en active Pending
- 2021-03-01 AU AU2021227284A patent/AU2021227284A1/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008113127A1 (en) | 2007-03-19 | 2008-09-25 | 2Ic Australia Pty Ltd | A core orientation tool |
AU2015261610A1 (en) * | 2012-09-19 | 2015-12-17 | Reservoir Nominees Pty Ltd | Multifunction orientation system with failover measurement system |
WO2014053012A1 (en) * | 2012-10-05 | 2014-04-10 | Minnovare Pty Ltd | Core orientation apparatus |
WO2017132736A1 (en) * | 2016-02-04 | 2017-08-10 | Imdex Global B.V. | Method and system for enabling at surface core orientation data transfer |
CA3034082A1 (en) * | 2018-02-19 | 2019-08-19 | Borecam Asia Pte Ltd. | Method of obtaining borehole and core orientation measurements in a single run and apparatus for performing the method |
Also Published As
Publication number | Publication date |
---|---|
US20230082354A1 (en) | 2023-03-16 |
CA3167925A1 (en) | 2021-09-02 |
ES2820674A1 (es) | 2021-04-21 |
US11939830B2 (en) | 2024-03-26 |
AU2021227284A1 (en) | 2022-09-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1828540B1 (en) | Gyroscopically-oriented survey tool | |
US10047600B2 (en) | Attitude reference for tieback/overlap processing | |
US20190017367A1 (en) | System and Method for Providing a Continuous Wellbore Survey | |
US10781691B2 (en) | System and method for providing a continuous wellbore survey | |
US20190330979A1 (en) | System and Method for Providing a Continuous Wellbore Survey | |
AU2005220213B2 (en) | Method and apparatus for mapping the trajectory in the subsurface of a borehole | |
ES2718338T3 (es) | Aparato para alinear máquinas de perforación | |
WO2021170896A1 (es) | Herramienta, sistema y procedimiento para la orientación de muestras de núcleo en la perforación de pozos | |
US12012847B2 (en) | System and method for using a magnetometer in a gyro-while-drilling survey tool | |
ES1284394U (es) | Herramienta para la orientacion de muestras de nucleo en la perforacion de pozos | |
CA3055560C (en) | Device and method for surveying boreholes or orienting downhole assemblies | |
RU2166084C1 (ru) | Устройство для определения углов искривления скважины | |
Ursenbach | Motion Aided Inertial Navigation System Calibration for In-Drilling Alignment | |
CN106321073A (zh) | 连续测斜短节以及具备该短节的高速遥传测井仪 | |
Scott et al. | A new generation directional survey system using continuous gyrocompassing techniques | |
Killeen et al. | Surveying the path of boreholes: A review of developments and methods since 1987 | |
UA116346U (uk) | Інклінометр для вертикальної частини свердловини та врізки бокових стовбурів |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 21720795 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 3167925 Country of ref document: CA |
|
ENP | Entry into the national phase |
Ref document number: 2021227284 Country of ref document: AU Date of ref document: 20210301 Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 21720795 Country of ref document: EP Kind code of ref document: A1 |