CN104334830A - An apparatus, system and method for actuating downhole tools in subsea drilling operations - Google Patents
An apparatus, system and method for actuating downhole tools in subsea drilling operations Download PDFInfo
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- CN104334830A CN104334830A CN201380026842.8A CN201380026842A CN104334830A CN 104334830 A CN104334830 A CN 104334830A CN 201380026842 A CN201380026842 A CN 201380026842A CN 104334830 A CN104334830 A CN 104334830A
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- 238000005553 drilling Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 25
- 235000014676 Phragmites communis Nutrition 0.000 claims description 17
- 238000004891 communication Methods 0.000 claims description 13
- 230000001939 inductive effect Effects 0.000 claims description 12
- 238000005259 measurement Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 230000006698 induction Effects 0.000 claims description 7
- 238000004458 analytical method Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 6
- 210000003954 umbilical cord Anatomy 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000013049 sediment Substances 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000013500 data storage Methods 0.000 description 2
- 230000005672 electromagnetic field Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- 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
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
- E21B41/0007—Equipment or details not covered by groups E21B15/00 - E21B40/00 for underwater installations
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- 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
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/02—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for locking the tools or the like in landing nipples or in recesses between adjacent sections of tubing
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- 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
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
- E21B41/04—Manipulators for underwater operations, e.g. temporarily connected to well heads
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- 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
- E21B47/001—Survey of boreholes or wells for underwater installation
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- 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
- E21B47/01—Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
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- 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
- E21B47/06—Measuring temperature or pressure
- E21B47/07—Temperature
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/18—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging
- G01V3/26—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging operating with magnetic or electric fields produced or modified either by the surrounding earth formation or by the detecting device
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Fluid Mechanics (AREA)
- Geophysics (AREA)
- Remote Sensing (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
A downhole logging tool and method of use for analysing portions of a seafloor borehole in seafloor drilling operations are provided. The downhole logging tool has an underwater chassis housing a power system and sensors including at least a conductivity sensor and a magnetic susceptibility sensor which, preferably, analyse the walls of the borehole. An automatically actuated switch, preferably actuated magnetically, provides power to the sensors from the power system when the downhole logging tool is not located in a designated portion of a seafloor drilling rig (e.g. when the tool is in use traversing a borehole) and removes power when the downhole logging tool is located in the designated portion of the seafloor drilling rig (e.g. when the downhole tool is not in use).
Description
Technical field
The present invention relates to a kind of for disposing from seabed rig and starting equipment, the system and method for underground logging instrument.Particularly, the present invention relates to but be not limited to automatically start and may be used for determining logging tool under the submarine well of down-hole lithology.
Background technology
Is be recognized these technological maheup in Australia or other national known general knowledge in this article to background technology with reference to not being appreciated that.
Off-shore boring, the off-shore boring that particularly (such as, 1,000m is to 3,000m+) carries out in very dark water body is operation relatively complicated, consuming time and costly.Knownly usually will be connected to the operated from a distance undersea system with seabed rig of sea vehicles or platform for this drillng operation by " umbilical cord " line (umbilical line) cable.It is such as the framework provided support for various parts of drill bit braced structures and so on that seabed rig generally includes, and wherein drill bit braced structures generally includes the drill string that can drill wellhole in seabed.
Being considered to a very difficult aspect in ocean floor drilling is determine the lithology of bottom sediment.Usually, lithology is determined by probing, acquisition and analysis core sample.Usually, the core barrel on the end of drill string is used to obtain core sample.
But, once core barrel is filled, then must reclaim core sample from core barrel.Usually, this relates to and reclaims whole drill string when fetching core sample at every turn.With regain time that core sample is associated by this way and cost makes core drilling be unpractical for darker wellhole.
Making some trials and reduced such problem, such as, by being provided for the storage area of drilling rod and core tube, and having replaced the process of the core tube be full of with empty core tube during drilling.So multiple core sample can be obtained when not needing by reclaiming whole drill string and obtaining each core sample in the wellhole of the larger degree of depth.Although this process is faster, but still be considered to complicated, consuming time with costly.In addition, if core sample be lost (such as, destroy, damage or even physics disappearance), then the lithology at least partially of wellhole will be unclear.
Usually, another problem of core sample is until core sample has been recovered and has analyzed the lithology just knowing wellhole.This time lag is very serious and bring very large inefficiencies to the characteristic understanding wellhole.A result of time lag is that wellhole is usually drilled and exceeded best " end of wellhole " (EOH) degree of depth during drilling operation.Which results in the waste of drilling time and resource.
Considering to adopt and be delegated in wellhole to analyze the underground logging instrument of the lithology of wellhole.Expect underground logging TO and closedown to be made it can not run continuously (continuous operation not only adds electricity usage amount but also can cause interference).Need to be retrieved to sea so that when again charging to battery at underground logging instrument, the electricity usage amount of increase is problematic especially for battery powered underground logging instrument.
The instrument being positioned at seabed provide the power switch of physical actuation be considered to unpractical.It is undesirable for not only in this degree of depth, there is movable member, and adopting device, to carry out remote activation switch can be problematic.Such as, likely mechanical arm is arranged on actuation switch on rig, but which further increases cost and the complexity of rig.In addition, if operator have forgotten before use or use rear actuation switch, then a large amount of resources is probably wasted.
Object of the present invention
The object of this invention is to provide a kind of for disposing from seabed drilling machine components and starting equipment, the system and method for underground logging instrument, described equipment, system and method can overcome or improve one or more above-mentioned shortcoming or problem, or at least provide a kind of replacement scheme of practicality.
Other preferred object of the present invention will become obvious from the following description.
Summary of the invention
According to a first aspect of the invention, provide a kind of underground logging instrument for using in the seabed wellhole of submarine drilling work, described underground logging instrument comprises:
Framework under water, described framework under water comprises electronic unit, and described electronic unit comprises power-supply system and sensor; And
Self actuating switch, electric power is optionally supplied to described electronic unit from described power-supply system by described self actuating switch;
Wherein, described sensor at least comprises conductivity sensor and magnetic susceptibility sensor, and described self actuating switch activated, when being arranged in the specified portions of the seabed rig of submarine drilling work with box lunch described underground logging instrument, electric power is removed from described electronic unit, and feed electrical power to described electronic unit when described underground logging instrument is not arranged in the specified portions of described seabed rig.
Described self actuating switch preferably includes the magnetic switch by activateding near magnetic source.Described magnetic source is preferably located in the specified portions of described seabed rig.More preferably, described magnetic source is positioned near the underground logging instrument storage shelf of described rig.
Preferably, described magnetic switch be often open and closed by the magnetic field of described magnetic source.Described magnetic switch is preferably reed sensor.Preferably, described reed sensor is a part for the self actuating on-off circuit comprising at least one transistor.Preferably, described transistor is electrically connected to described power supply and described in described magnetic actuation Switch Controller, transistor carries out switching optionally electric power is provided to described electronic unit.
Preferably, described electronic unit comprises the data communication system carrying out with described sensor communicating.Described sensor preferably includes radial measurement sensor, that is, perform to the wall of described wellhole the sensor measured.
The sensor of described underground logging instrument may further include temperature pick up, resistivity sensor and/or natural gamma sensor.Preferably, described resistivity sensor is inductive type conductivity sensor, and described inductive type conductivity sensor can be the inductive type conductivity sensor of Double-coil type inductive type conductivity sensor, focal line ring type (coil-focused) inductive type conductivity sensor or some other forms.Preferably, described natural gamma sensor is used to carry out depth correlation.
Preferably, described framework under water comprises auxiliary section, and described auxiliary section is fixed to the corresponding auxiliary section of described seabed rig releasedly.Preferably, described drain frame frame comprises described sensor, described data communication system and described power-supply system.When described power-supply system comprises battery, the switch of described self actuating is preferably located on underground logging instrument.
Described data communication system can comprise the data storage for storing the data received from described sensor.Described data communication system can store data, to require that time point transmits.
Described underground logging instrument may further include processor.Described processor preferably communicates with described processor, described data communication system and/or described power-supply system.Described processor can process the initial data from described sensor.So described data communication system communicates with described sensor preferably by described processor; And preferably receive treated sensing data from described processor.
Described power-supply system preferably includes battery.Described power-supply system can also comprise power transmission system.Described battery can comprise multiple less battery.Described power transmission system preferably sends the electric power from external power source (such as the power pack of the rig of ocean floor drilling equipment).
Described battery can be re-charged electricity and described power-supply system may further include batter-charghing system.Described batter-charghing system can be charged to described battery by described power transmission system or carry out induction charging to described battery.Described battery permits electric system can also be started by described self actuating switch.Alternatively, described self actuating switch can activated when described batter-charghing system is detected, and preferably activated when induction charging field is detected.
Preferably, described underground logging instrument is fixed to cable system or is fixed to drill string by the auxiliary section of described underground logging instrument.Be fixed to cable system place in the auxiliary section of described underground logging instrument, preferably, described auxiliary section comprises latch head.Be fixed to drill string place in the auxiliary section of described underground logging instrument, preferably, described auxiliary section comprises connector.Preferably, described underground logging instrument is connected the bottom hole assembly for described drill string by described connector.Described underground logging instrument can have the auxiliary section for being connected to cable system and the auxiliary section for being connected to drill string.
Described cable system can also be used to transfer underground logging instrument when described drill string is in described wellhole through described drill string, preferably transfer total depth, and be used to throw off the described logging tool treating to be received (preferably treating to be received by bottom hole assembly part) by a part for drill string.Preferably, the Sensor section of at least described underground logging instrument stretches out from the bottom of described drill string.In this case, described drill string is normally recycled to described seabed rig from described wellhole, simultaneously described underground logging instrument along with itself and described drill string together by promoting by the data that the hole wall of described sensor record and described wellhole is relevant.
Preferably, the length of described framework is under water less than 6m and has the external diameter being less than 150mm.More preferably, the length of described framework is under water less than 3m and has the external diameter being less than 75mm.Form of the present invention is preferably length and is less than 2m and the external diameter with 50mm or less.
According to a second aspect of the invention, a kind of seabed rig comprising above-mentioned underground logging instrument is provided.
According to a third aspect of the invention we, provide a kind of system applying underground logging instrument in submarine drilling work, comprising:
For the underground logging instrument of walking in the wellhole of seabed, described underground logging instrument has power-supply system, sensor and self actuating switch, wherein, described sensor at least comprises conductivity sensor and magnetic susceptibility sensor, and electric power is optionally supplied to the sensor of described underground logging instrument by described self actuating switch from described power-supply system;
Described self actuating switch is configured to: start described underground logging instrument when the specified portions of rig aweigh, and close described underground logging instrument when entering into the specified portions of described seabed rig.
According to a forth aspect of the invention, provide a kind of method applying underground logging instrument in submarine drilling work, comprise the following steps:
Select underground logging instrument to walk in the wellhole of seabed;
Described underground logging instrument selected by transferring from the specified portions of seabed rig; And
The self actuating switch of underground logging instrument described in self actuating, starts described underground logging instrument when leaving the specified portions of described rig with box lunch, and closes described underground logging instrument when entering into the specified portions of described seabed rig.
The method of application underground logging instrument is further comprising the steps:
Described underground logging instrument is connected to cable;
Described underground logging instrument is transferred through drill string in the wellhole of described seabed;
Being sat by described underground logging instrument puts in the receptacle of nethermost drill string;
Throw off and regain described cable; And/or
Take out from described wellhole along with by described drill string, perform the measurement of described downhole tool.
Preferably, described underground logging instrument performs radial measurement to the wall of described wellhole.Preferably, described underground logging instrument has sensor, and described sensor at least comprises conductivity sensor and magnetic susceptibility sensor.Preferably, the underground logging instrument applied in submarine drilling work in the system and method for underground logging instrument is underground logging instrument as above.
Preferably, described underground logging instrument is fixed to the seabed rig of described ocean floor drilling equipment by remote operating mechanisms or throws off from the seabed rig of described ocean floor drilling equipment.Preferably, described remote operating mechanisms operates from sea vehicles or platform.
Other features and advantages of the present invention will become obvious from the following detailed description.
Accompanying drawing explanation
Only exemplarily with reference to accompanying drawing, the preferred embodiments of the present invention will more completely be described hereinafter, in the accompanying drawings:
Fig. 1 is the schematic diagram of the submarine drilling work comprising the drill string being arranged in wellhole;
Fig. 2 is the schematic diagram using submersible type cable winch underground logging instrument to be transferred to the seabed rig in wellhole;
Fig. 3 a is the schematic diagram of the underground logging instrument be just delegated in drill string;
Fig. 3 b is the underground logging instrument schematic diagram in the bottom hole assembly of drill string in place in Fig. 3 a;
Fig. 3 c is along with drill string is moved out of the schematic diagram of the underground logging instrument gathered in Fig. 3 a of survey data;
Fig. 4 is the side elevation of the part of the seabed rig comprising underground logging tool storage area;
Fig. 5 is the electronic circuitry for self actuating switch; And
Fig. 6 is the side direction view of underground logging instrument.
Detailed description of the invention
Fig. 1 shows the schematic diagram of the submarine drilling work system 10 be positioned on the seabed 12 on sea level less than 14.Submarine drilling work system 10 can be positioned at the different depth place on sea level less than 14, but usually seabed 12 is greater than 1000m place on sea level less than 14, and about 3000m place on sea level less than 14 in many cases.
Ocean floor drilling equipment 10 has seabed rig 16, and seabed rig 16 is connected to sea vehicles or platform 18 by " umbilical cord " cable 20.Umbilical cord cable 20 supplies electric power, control and remote measurement for seabed rig 16.Usually, by umbilical cord cable 20, electric power and operated from a distance are supplied to rig 16 from sea vehicles or platform 18.Although sea vehicles or platform 18 be shown as be positioned at sea level 14 surface on, should be understood that sea vehicles or platform also can be positioned at that other is local, are such as positioned at land.
Seabed rig 16 has drill bit assembly 22, and drill bit assembly 22 is connected to the drill string 24 in wellhole 26.During drillng operation, drill bit assembly 22 controls drill string 24 and carrys out drill well bores 26.General drill string 24 has pipeline, and drilling fluid is delivered to the bore bit (not shown) of the bottom hole assembly at the distal end 24 ' place of drill string 24 by pipeline.The underground logging instrument 100 (not shown in FIG) be described in more detail by composition graphs 6 also can be fixed to the bottom hole assembly at the distal end 24 ' place of drill string 24, so that the lithology of the bottom sediment near the wall determining wellhole 26.
Fig. 2 shows the alternative method transferred by underground logging instrument 100 in wellhole 26.Replace bottom hole assembly underground logging instrument 100 being fixed to drill string 24, underground logging instrument 100 is fixed to cable 28, and cable 28 is promoted by submersible type cable winch 30 and transferred.Electrical connection (such as cable 28 being connected to umbilical cord cable 20) between the other parts of cable 28 and rig 16 can be provided by electric slip ring 32.Alternatively, cable can be pure mechanical, only for promoting in wellhole 26 and transferring underground logging instrument 100.
Fig. 3 a to Fig. 3 c shows the other method transferred by underground logging instrument 100 in wellhole 26.As shown in Figure 3 a, downhole well tool 100 is connected to cable 28 via auxiliary section 112 and is transferred in wellhole 26 by cable winch 30.Cable winch 30 is through the many drilling rods 24 of composition drill string 24 " inside underground logging instrument 100 is transferred.Three drilling rod 24a to 24c have been shown in Fig. 3 a to Fig. 3 c, wherein, 24a is the uppermost drilling rod 24 received by drilling rod footing fixture (footclamp) 34 "; 24b is intermediate drill 24 ", and 24c is the nethermost drilling rod 24 at the distal end 24 ' place of drill string 24 with the receptacle 36 of underground logging instrument 100 ".
Fig. 3 b shows the underground logging instrument 100 in lowered position, and in lowered position, underground logging instrument 100 is received by the receptacle 36 of nethermost drilling rod 24c.The cable connector 28 ' of the end of cable 28 is separated from the auxiliary section 112 of underground logging instrument 100, and cable 28 is lifted out drill string 24 by cable winch 30.Underground logging instrument 100 is sat and is put in the receptacle 36 of nethermost drilling rod 24c, and the major part comprising sensor is stretched out from the end of underground drill stem 24.This allows the sensor in underground logging instrument 100 to gather the survey data relevant to the wall of wellhole 26 when not hindered by drill string 24 or interfere.
Fig. 3 c shows after cable 28 has been lifted out drill string 24 by cable winch 30 completely just from the drill string 24 that wellhole 26 is moved out of.Along with drill string 24 is promoted, single drilling rod 24 " removed to store by from drill string.As shown in Figure 3 c, uppermost drilling rod 24a has removed from drill string and has been stored on seabed rig 16.During lifting drill string, underground logging instrument 100 is activation and obtains the radial measurement data of the wall of wellhole 26.When drill string 24 is completely removed from wellhole 26, then underground logging instrument 100 can be reclaimed, and can download sensing data at reasonable time.
A part for seabed rig 16 is shown in Figure 4, illustrated therein is, the pointed storage area of rig 16, and described storage area is the form that underground logging instrument stores shelf 200.Fig. 4 also show the drill bit 22 with main shaft 202.Be provided with arm tool 204, arm tool 204 can be transferred instrument (such as underground logging instrument) from shelf 200 and is threaded onto by this instrument and be attached to the drill string 24 of main shaft 202.Drill bit 22 can carry out vertical motion with controlled speed and power, to control the logging tool in drill string 24 and wellhole 26.Arm tool 204 can also be used for underground logging instrument 100 to transfer appropriate location, to coordinate with cable 30.
As illustrated in greater detail by composition graphs 6, underground logging instrument 100 is battery powered and has switch 152.This switch 152 is self actuating switch.When being stored in instrument shelf 200, the self actuating switch 152 of underground logging instrument 100 activated, underground logging instrument 100 is closed (that is, substantially not using electric power), and then when taking off to use from instrument shelf 200, underground logging instrument 100 is activated.
In a preferred embodiment, self actuating switch is by magnet 206 magnetically actuated be positioned near instrument shelf 200, and when underground logging instrument 100 is arranged in instrument shelf 200, magnet 206 is preferably directly in close proximity to the position of the switch of underground logging instrument 100.When the magnet of switch 152 near instrument shelf 200, switch 152 activated, thus closing tool 100 automatically.
When being arranged in instrument shelf 200, can charge to underground logging instrument.Inductive charging device (not shown) can be arranged on instrument shelf 200 or near instrument shelf 200.Use the electric power from seabed rig 16, inductive charging device is generated an electromagnetic field by induction coil.When underground logging instrument 100 is oriented near inductive charging device, electromagnetic field is changed into electric charge to charge to battery by the second induction coil of the second induction coil in the battery of downhole tool 100 or the battery that is at least electrically connected to downhole tool 100.As the replacement scheme of magnetic switch, the detection carried out induction charging field can alternately for activating self actuating switch.
Fig. 5 shows preferred self actuating on-off circuit Figure 50 0.Circuit 500 comprises the transistor 512 and 514 of four resistors (R1, R2, R3 and R4), reed switch 510 and two MOSFET (mos field effect transistor) forms.Reed switch 510 is often opened, and closes when being subject to magnetic fields, such as, closed by the magnet 206 near instrument shelf 200.Circuit 500 is directly connected to the power supply of the form of the battery pack 502 of 18 batteries.
Usually, reed switch allows limited amount electric current to flow through (such as, 0.1A).Circuit 500 allows to use to be had the reed switch 510 of good sensitivity to magnetic field and not to need excessively restriction from the electric current of battery pack 502.In a preferred embodiment, when reed switch 510 disconnects, circuit 500 allows the electric current of about 7.5A to flow through.
In a preferred embodiment, when reed switch disconnects, namely when it is not subject to magnetic fields, at V
inwith V
outbetween the resistance that records be 0.0226 Ω to 0.028 Ω.When reed switch 510 closes, namely when it is subject to magnetic fields, at V
inwith V
outbetween the resistance that records be 4.8M Ω to 24M Ω.High resistance when reed switch 510 closes result in minimum (if any) and flows through V
outelectric current.
Fig. 6 shows preferred underground logging instrument 100.Underground logging instrument 100 has the framework under water 110 of the high pressure housing form being suitable for walking in wellhole 26.Framework 110 has auxiliary section 12 and comprises: one or more sensor, supply the power-supply system of electric power with the data communication system of sensor communication and for sensor and data communication system.Particularly, underground logging instrument 100 has battery pack 150, power switch 152, electronic section 170, natural gamma sensor 172, conductivity sensor 174, magnetic susceptibility sensor 176 and external temperature sensor 178.Electronic section 170 comprises sensor and data storage.
The auxiliary section 112 of underground logging instrument 100 can either be connected to drill string 24 and can be connected to cable 28 again.This either method making underground logging instrument 100 that composition graphs 1, Fig. 2 or Fig. 3 a to Fig. 3 c can be used to describe is walked and performs measurement in wellhole 26.Most preferably, the method that underground logging instrument 100 is described by composition graphs 3a to Fig. 3 c uses, wherein, use cable 28 downhole well tool 100 to be transferred through drill string 24, then drilling tool 100 is promoted by drill string 24 and is performed the measurement of the wall of wellhole 26 simultaneously.
Before the use, underground logging instrument 100 is arranged in the instrument storage shelf 200 of rig 12.Self actuating switch 152 is remained open (that is, in circuit 500, reed switch closes and underground logging instrument 100 is closed, thus preserves electric power) by the one or more magnets near instrument shelf 200.When hope uses underground logging instrument 100, underground logging instrument 100 is selected and is removed from instrument shelf 200.When underground logging instrument 100 is removed from shelf, switch 152 removed from the magnetic field near instrument shelf 200 and switch 152 by self actuating to make position (namely, in circuit 500, reed switch is disconnected and underground logging instrument 100 is opened).Then, underground logging instrument is started automatically by switch 152, to use in wellhole 26.
Then, automatically actuated underground logging instrument 100 can be delegated in wellhole 26 to provide the survey data of the lithology that can be used in determining bottom sediment.
When underground logging instrument 100 is connected to drill string 24 (as shown in Figure 1), the auxiliary section 112 of underground logging instrument 100 is connected to the distal end 24 ' of drill string 24 by arm tool 204, and underground logging instrument 100 is deployed as bottom hole assembly.When underground logging instrument 100 is connected to cable 28 (as illustrated in fig. 2 and 3 a), then cable winch 30 to be positioned in above wellhole 26 and underground logging instrument 100 is delegated in wellhole 26.
When underground logging instrument 100 is by when being put in the receptacle 36 at drill string 24 by seat (as shown in Fig. 3 a to Fig. 3 c), underground logging instrument 100 is transferred in receptacle 36 by cable winch 30, and cable winch 30 is separated with the auxiliary section 112 of underground logging instrument 100 and is regained from drill string 24 by cable 28.Then, when during normal drill string reclaimer operation, underground logging instrument 100 its perform when upwards walking in wellhole 26 and measure and record data.Once nethermost drilling rod 24c is arranged in drilling rod footing fixture 34, cable 28 can be used to be connected to underground logging instrument 100 and underground logging instrument 100 is transferred go back to tool storage area 200, in tool storage area 200, by self actuating switch 152 auto-breaking when underground logging instrument 100 has the magnetic field of magnet 206.
The characteristic of the wall of the sensor measurement wellhole 26 of underground logging instrument 100 and pass data to (usually passing through processor) data communication system.Data communication system stores data to transmit (such as according to retrieval) data subsequently.The data carrying out sensor provide down-hole geophysical property, and described geophysical property can be used to the lithology of the institute's analysis part determining wellhole.
Data from magnetic susceptibility sensor can be used to the region determining seafloor massive sulfides and non-mineralising underground lava (non-mineralised basement volcanic rocks).Altered lava and sulfide have by the magnetic susceptibility of high temperature, and correspondingly, and when arriving non-mineralising underground lava, magnetic susceptibility sensor can be used to differentiate the region be concerned about and for determining " end of wellhole ".
The underground logging instrument 100 of Fig. 6 does not have power source special or the communication line with rig 16.Therefore underground logging instrument 100 is powered by rechargeable battery, and when being stored in rig 16, rechargeable battery can recharge sensedly.Alternatively, underground logging instrument 100 can be re-charged electricity on sea.Usually, store data in the memory of its carrier band underground logging instrument 100 locality, but it is contemplated that underground logging instrument 100 can use such as sonic transmissions and so on available data tranmission techniques or transmit data by umbilical cord cable.
After fulfiling assignment, underground logging instrument 100 is recovered from wellhole 26 and is taken back to the instrument shelf 200 of rig 12.When this instrument is taken back in instrument shelf, self actuating switch 152 is actuated to disconnection when having the magnetic field of the magnet 206 near from instrument shelf 200.Under the automatic closed-in well of this process, logging tool 100 is to conserve battery power and to prevent the issuable any interference of underground logging instrument.
Advantageously, underground logging instrument 100 provides the quick and relatively easy lithologic analysis of wellhole 26.Underground logging instrument 100 can use in be concerned about region, and can occur that the place of core loss (core loss) uses.Burden is significantly reduced compared to reclaiming and analyze core sample from underground logging instrument 100 retrieve data.Minimizing for the time of receiving well lithology data further increases the confidence level stopping drillng operation (that is, being called " end of wellhole "), which increases efficiency and thus reduces running cost.The use of underground logging instrument 100 can use in conjunction with core sample, if or provide enough information, core sample can be replaced completely.
When underground logging instrument (difference) is removed and puts back to instrument shelf, the use automatically starting the self actuating switch of logging tool under underground logging instrument and closed-in well desirably reduces the power consumption of underground logging instrument.Because underground logging instrument is only just taken off by from instrument shelf usually in use, therefore self actuating switch is only used at underground logging instrument or will by ability during use by underground logging instrument start-up.Which increase the life-span of the battery in underground logging instrument and reduce total power consumption.
Magnetic switch circuit 500 advantageously allows use magnetosensitive reed switch 510 and unduly limit the electric current can supplied by battery pack 502.In addition, circuit 500 avoids and is during starts blowing reed switch 510.
Describe the particular combination of the parts of underground logging instrument, comprise the particular combination of sensor and auxiliary section.These particular combination are the preferred embodiments of the present invention, but should be understood that, also can use other combination of sensor and/or auxiliary section.
Although should be mentioned that seabed rig in this article, should be understood that, seabed rig is not necessarily fixing rig, and can be the rig transferred of the form of such as operated from a distance toter (ROV, remotely operated vehicle).
In this article or similar item lower to seabed, sea bed, sea can be applied to other water body equally with reference to being only object for convenience, such as example there is the lake etc. of lakebed.
In this manual, such as first and second, the adjective of the left side and the right, top and bottom etc. is only used to differentiation element and another element or an action and another action, might not require or represent this relation and the order of any reality.When context allows, for overall or parts or step (etc.) with reference to not should be understood to only be limited in this entirety, parts or step, and can be one or more in this entirety, parts or step etc.
The above description of the various embodiments of the present invention provided is to be described pin those of ordinary skill in the art.The object described is not be exhaustive or to limit the invention to single disclosed embodiment.As mentioned above, a large amount of replacement scheme of the present invention and change will be apparent for the technician in above instructed field.Correspondingly, although specifically discuss some alternate embodiment, for this exercising ordinary skill, other embodiment will be apparent or relatively easily exploitation.The present invention be intended to contain discussed in this article of the present invention all replacement scheme, remodeling and change and other embodiment of falling in the spirit and scope of invention described above.
In this manual, term " comprises ", " including ", " comprising ", " including " or similar terms are intended to mean non-exclusionism inclusion, the method, the system or equipment that make to comprise the element listed not only comprise listed element, and can also comprise other element do not listed.
Claims (25)
1. a underground logging instrument, for using in the seabed wellhole of submarine drilling work, described underground logging instrument comprises:
Framework under water, described framework under water comprises electronic unit and power-supply system, and described electronic unit comprises sensor; And
Self actuating switch, electric power is optionally supplied to described electronic unit from described power-supply system by described self actuating switch;
Wherein, described sensor at least comprises conductivity sensor and magnetic susceptibility sensor, and described self actuating switch activated, when being arranged in the specified portions of the seabed rig of submarine drilling work with box lunch described underground logging instrument, electric power is removed from described electronic unit, and feed electrical power to described electronic unit when described underground logging instrument is not arranged in the specified portions of described seabed rig.
2. underground logging instrument according to claim 1, wherein, described self actuating switch comprises the magnetic switch by activateding near magnetic source.
3. underground logging instrument according to claim 2, wherein, described magnetic source is arranged in the specified portions of described seabed rig.
4. according to claim 2 or underground logging instrument according to claim 3, wherein, described magnetic source is positioned near the underground logging instrument storage shelf of described rig.
5. the underground logging instrument according to any one of claim 2 to 4, wherein, described magnetic switch be often open and closed by the magnetic field of described magnetic source.
6. the underground logging instrument according to any one of claim 2 to 5, wherein, described magnetic switch is reed sensor, and described reed sensor is a part for the self actuating on-off circuit comprising at least one transistor.
7. underground logging instrument according to claim 6, wherein, described transistor is electrically connected to described power supply and described reed sensor switches optionally to feed electrical power to described electronic unit described transistor.
8. according to underground logging instrument in any one of the preceding claims wherein, wherein, described electronic unit comprises the data communication system carrying out with described sensor communicating.
9. according to underground logging instrument in any one of the preceding claims wherein, wherein, described sensor comprises the radial measurement sensor wall of described wellhole being performed to measurement.
10. according to underground logging instrument in any one of the preceding claims wherein, wherein, the sensor of described underground logging instrument comprises temperature pick up, resistivity sensor and/or natural gamma sensor further.
11. underground logging instruments according to claim 10, wherein, described resistivity sensor is inductive type conductivity sensor.
12. underground logging instruments according to claim 11, wherein, described inductive type conductivity sensor is Double-coil type inductive type conductivity sensor or with focal line ring type inductive type conductivity sensor.
13. according to underground logging instrument in any one of the preceding claims wherein, and wherein, described framework under water comprises auxiliary section, and described auxiliary section is fixed to the corresponding auxiliary section of described seabed rig releasedly.
14. underground logging instruments according to claim 13, wherein, described auxiliary section comprises latch head, described logging tool is under water coupled to cable system.
15. underground logging instruments according to claim 13, wherein, described auxiliary section comprises connector, described underground logging instrument is coupled to drill string.
16. according to underground logging instrument in any one of the preceding claims wherein, and wherein, described power-supply system comprises battery.
17. underground logging instruments according to claim 16, wherein, described battery is that rechargeable and described power-supply system comprises batter-charghing system further.
18. underground logging instruments according to claim 17, wherein, described batter-charghing system carries out induction charging by described seabed rig to described battery.
19. 1 kinds of seabed rigs, comprise the underground logging instrument according to any one of claim 1 to 18.
20. 1 kinds of systems applying underground logging instrument in submarine drilling work, comprising:
For the underground logging instrument of walking in the wellhole of seabed, described underground logging instrument has power-supply system, sensor and self actuating switch, wherein, described sensor at least comprises conductivity sensor and magnetic susceptibility sensor, and wherein, electric power is optionally supplied to the sensor of described underground logging instrument by described self actuating switch from described power-supply system;
Described self actuating switch is configured to: start described underground logging instrument when the specified portions of rig aweigh, and close described underground logging instrument when entering into the specified portions of described seabed rig.
21. 1 kinds of methods applying underground logging instrument in submarine drilling work, comprise the following steps:
Select underground logging instrument to walk in the wellhole of seabed;
Described underground logging instrument selected by transferring from the specified portions of seabed rig; And
The self actuating switch of underground logging instrument described in self actuating, starts described underground logging instrument when leaving the specified portions of rig with box lunch, and closes described underground logging instrument when entering into the specified portions of described seabed rig.
22. methods according to claim 21, wherein, described method is further comprising the steps:
Described underground logging instrument is connected to cable;
Described underground logging instrument is transferred through drill string in the wellhole of described seabed;
Being sat by described underground logging instrument puts in the receptacle of nethermost drill string;
Throw off and regain described cable; And
Take out from described wellhole along with by described drill string, perform the measurement of described downhole tool.
23. according to claim 21 or method according to claim 22, and wherein, described underground logging instrument has sensor, and described sensor at least comprises conductivity sensor and magnetic susceptibility sensor.
24. methods according to any one of claim 21 to 23, wherein, described underground logging instrument performs radial measurement to the wall of described wellhole.
25. methods according to any one of claim 21 to 24, wherein, described underground logging instrument is the underground logging instrument according to any one of claim 1 to 18.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2012902644 | 2012-06-22 | ||
| AU2012902644A AU2012902644A0 (en) | 2012-06-22 | An apparatus, system and method for actuating downhole tools in subsea drilling operations | |
| PCT/AU2013/000625 WO2013188903A1 (en) | 2012-06-22 | 2013-06-12 | An apparatus, system and method for actuating downhole tools in subsea drilling operations |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104334830A true CN104334830A (en) | 2015-02-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380026842.8A Pending CN104334830A (en) | 2012-06-22 | 2013-06-12 | An apparatus, system and method for actuating downhole tools in subsea drilling operations |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20150337643A1 (en) |
| EP (1) | EP2864589A4 (en) |
| JP (1) | JP2015520313A (en) |
| KR (1) | KR20150031412A (en) |
| CN (1) | CN104334830A (en) |
| AU (1) | AU2013277920A1 (en) |
| WO (1) | WO2013188903A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112203932A (en) * | 2018-06-08 | 2021-01-08 | 离子地球物理学公司 | Sensor node attachment mechanism and cable retrieval system |
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| CA2907097A1 (en) * | 2013-04-19 | 2014-10-23 | Halliburton Energy Services, Inc. | Fluid flow during landing of logging tools in bottom hole assembly |
| GB2518166B (en) * | 2013-09-11 | 2020-05-27 | Reeves Wireline Tech Ltd | A logging tool and method of its use |
| JP6307177B2 (en) * | 2014-05-13 | 2018-04-04 | バウアー マシーネン ゲーエムベーハー | Underwater excavator for obtaining and analyzing ground samples of water bodies |
| US9595833B2 (en) | 2014-07-24 | 2017-03-14 | Seabed Geosolutions B.V. | Inductive power for seismic sensor node |
| GB2533779B (en) | 2014-12-24 | 2019-05-08 | Reeves Wireline Tech Ltd | A logging tool |
| GB2543496B (en) * | 2015-10-16 | 2017-11-29 | Reeves Wireline Tech Ltd | A borehole logging sensor and related methods |
| NO342043B1 (en) * | 2015-12-08 | 2018-03-19 | Aker Solutions As | Workover Safety System |
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Also Published As
| Publication number | Publication date |
|---|---|
| AU2013277920A1 (en) | 2014-11-13 |
| JP2015520313A (en) | 2015-07-16 |
| KR20150031412A (en) | 2015-03-24 |
| WO2013188903A1 (en) | 2013-12-27 |
| EP2864589A4 (en) | 2016-03-23 |
| US20150337643A1 (en) | 2015-11-26 |
| EP2864589A1 (en) | 2015-04-29 |
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