CN110397433A - Detritus bed identification system - Google Patents
Detritus bed identification system Download PDFInfo
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- CN110397433A CN110397433A CN201910814508.8A CN201910814508A CN110397433A CN 110397433 A CN110397433 A CN 110397433A CN 201910814508 A CN201910814508 A CN 201910814508A CN 110397433 A CN110397433 A CN 110397433A
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- 238000005553 drilling Methods 0.000 claims abstract description 29
- 230000005540 biological transmission Effects 0.000 claims description 35
- 238000012360 testing method Methods 0.000 claims description 19
- 239000012530 fluid Substances 0.000 claims description 16
- 238000013519 translation Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 6
- 235000013399 edible fruits Nutrition 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- 238000004088 simulation Methods 0.000 abstract description 16
- 238000010586 diagram Methods 0.000 abstract description 11
- 238000011897 real-time detection Methods 0.000 abstract description 5
- 230000008054 signal transmission Effects 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000000644 propagated effect Effects 0.000 description 3
- 230000002045 lasting effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003079 shale oil Substances 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
- E21B47/00—Survey of boreholes or wells
-
- 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
- E21B47/002—Survey of boreholes or wells by visual inspection
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
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- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Mining & Mineral Resources (AREA)
- Geophysics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Remote Sensing (AREA)
- Geophysics And Detection Of Objects (AREA)
- Earth Drilling (AREA)
Abstract
The invention provides a detritus bed identification system, which comprises a detritus bed identification device, a signal transmission device, a signal decoding identification device and a display device, wherein the detritus bed identification device is arranged on a drill column and is used for acquiring information data of a detritus bed and encoding the information data by using an encoding rule to obtain an encoding result; the signal transmission device receives the coding result and transmits the coding result to the signal decoding and identifying device; the signal decoding and identifying device is arranged on the ground and can receive the encoding result and decode and identify the encoding result according to the encoding rule to obtain a decoding and identifying result; and the display device receives the decoding recognition result and displays the cutting bed simulation diagram according to the decoding recognition result. The debris bed recognition system can realize real-time detection and real-time processing of the debris bed, avoid the condition that a drill column stops rotating for a long time, and improve the working efficiency of drilling.
Description
Technical field
The present invention relates to oil and gas exploration technical fields, more particularly, are related to a kind of cutting bed identifying system.
Background technique
In oil drilling, cutting bed be in extended horizontal well drilling well it is most common, one of endanger the problem of most serious.Landwaste
The harm of bed show themselves in that slow down mechanical drilling speed and engineering construction progress, increase Construction Cost, increase torque cause to bore
Frequent Accidents such as the impaired, bit freezing of well tool etc..As marine and land shale oil/gas drilling extended horizontal well is largely disposed,
Series of problems caused by cutting bed becomes increasingly severe.
Currently, still relying upon theoretical analysis and calculation, software simulation and experimental provision simulation etc., above-mentioned side to the differentiation of cutting bed
Method can not realize real time discriminating and the monitoring of cutting bed in underground, also, with the adjustment of operating condition, theory analysis and experimental provision
The result of simulation has differences with truth, cannot really embody downhole debris bed feature, be unfavorable for wellbore construction.
Summary of the invention
It is above-mentioned existing in the prior art it is an object of the present invention to solving for the deficiencies in the prior art
One or more problems.It being capable of real time discriminating and detection downhole debris bed for example, one of the objects of the present invention is to provide one kind
The cutting bed identifying system of situation.
To achieve the goals above, of the invention to provide a kind of cutting bed identifying system, the system may include rock
Consider bed identification device, signal transmitting apparatus, signal solution code recognition device and display device to be worth doing, wherein the cutting bed identification dress
It installs and is placed on drill string, for acquiring cutting bed information data, and the information data can be compiled according to coding rule
Code, obtains coding result；The signal transmitting apparatus receives the coding result, and coding result is transmitted to signal decoding and is known
Other device；The signal solution code recognition device, which is set to ground, can receive coding result, and according to the coding rule to volume
Code result is decoded identification to obtain decoding recognition result；The display device reception decoding recognition result, and according to
Decoding recognition result is drawn and shows cutting bed simulation drawing.
In an exemplary embodiment of cutting bed identification device of the invention, the cutting bed identification device be can wrap
Include signal receiving unit, Signal coding transmission unit and power supply unit, wherein the signal receiving unit includes multiple signals
Sending and receiving subelement, each signal sending and receiving subelement include multiple signal receiving-transmitting devices, multiple signals of each signal sending and receiving subelement
Receiving-transmitting device is arranged circumferentially along cutting bed identification device, and the signal receiving-transmitting device, which can emit signal and receive, to be signaled
Return signal after drilling fluid or cutting bed, the signal receiving unit can be believed according to transmitting signal with return is received
Number time interval output test result；The information coding transmission unit can receive the inspection of the signal receiving unit output
It surveys as a result, and carrying out corresponding encode with testing result using the location information of signal receiving-transmitting device in each signal sending and receiving subelement
Signal transmitting apparatus is transmitted to coding result, and by coding result；Said supply unit respectively with signal receiving unit and
The connection of Signal coding transmission unit can power for signal receiving unit and Signal coding transmission unit.
Compared with prior art, the beneficial effect of identifying system of the present invention includes:
(1) present invention detects the cutting bed of underground by cutting bed identification device, passes through coding, transmission and decoding later,
Over the display, staff can pass through display for display in the form of cutting bed simulation drawing the case where detecting cutting bed
Under real time discriminating and monitoring well the case where cutting bed, drilling method can be optimized according to cutting bed simulation drawing, convenient for drilling work
Lasting progress；
(2) present invention can emit the time interval between reception according to signal, return to different testing results, realize
The real-time detection of downhole debris bed；
(3) present invention is more acurrate relative to the result of theory analysis and experiment simulation, understands well in time convenient for staff
The case where lower cutting bed, can take measures Cutting Disposal according to recognition result, prevent down-hole accident；
(4) cutting bed identifying system of the invention can be realized the real-time detection of cutting bed, processing in real time, avoid drill string
The case where stalling for a long time, improves the working efficiency of drilling.
Detailed description of the invention
By the description carried out with reference to the accompanying drawing, above and other purpose of the invention and feature will become more clear
Chu, in which:
Fig. 1 shows the cutting bed identifying system block diagram of an illustrative embodiment of the invention；
Fig. 2 shows the cutting bed identification device schematic diagrames of an illustrative embodiment of the invention；
Fig. 3 shows the cutting bed identification device schematic diagram of another exemplary embodiment of the invention；
Fig. 4 shows the coding result schematic diagram and cutting bed simulation drawing of an illustrative embodiment of the invention.
Specific embodiment
Hereinafter, a kind of cutting bed identification according to the present invention will be described in detail in conjunction with attached drawing and exemplary embodiment
System.
Fig. 1 shows the cutting bed identifying system block diagram of an illustrative embodiment of the invention.Fig. 2 shows the present invention one
The cutting bed identification device schematic diagram of a exemplary embodiment, wherein figure (a) is cutting bed identification device figure, and figure (b) is figure
(a) signal receiving-transmitting device layout drawing in.Fig. 3 shows the cutting bed identification device signal of another exemplary embodiment of the invention
Figure, wherein figure (a) is cutting bed identification device figure, and figure (b) is the side view for scheming (a).Fig. 4 shows an example of the present invention
Property embodiment coding result schematic diagram and cutting bed simulation drawing, wherein figure (a) be coding result schematic diagram, figure (b) be rock
Consider bed simulation drawing to be worth doing.
The present invention provides a kind of cutting bed identifying systems, in an exemplary reality of cutting bed identifying system of the invention
It applies in example, the identifying system may include cutting bed identification device, signal transmitting apparatus, signal solution code recognition device and show
Showing device, wherein
The cutting bed identification device can be set on drill string, when drill string is located in well to the cutting bed of cutting bed
Information data is acquired and is encoded to the information data collected using the coding rule arranged in advance, is encoded
As a result.
The signal transmitting apparatus can be connect with cutting bed identification device, be exported for receiving cutting bed identification device
Coding result, and coding result is transmitted to signal solution code recognition device.The signal transmitting apparatus can be along the table of drill string
Face is configured.
The signal solution code recognition device and display device can be set on the ground.The signal solution code recognition device energy
It enough receives the coding result of signal transmitting apparatus transmission and identification is decoded to coding result using the rule of coding, solved
Code recognition result.
The display device can receive the decoding recognition result, and generate according to obtained decoding recognition result is received
Cutting bed simulation drawing to show on the display apparatus.
In the present embodiment, each device connection schematic diagram of cutting bed identifying system is as shown in Figure 1.The cutting bed is known
Other device can also include signal receiving unit, Signal coding transmission unit and power supply unit.The signal receiving unit with
The Signal coding transmission unit connection.Said supply unit is single with the signal receiving unit and Signal coding transmission respectively
Member connection, for powering for the signal receiving unit and Signal coding transmission unit.The Signal coding transmission unit with
The signal transmitting apparatus connection.
The signal receiving unit includes multiple signal sending and receiving subelements.Each signal sending and receiving subelement includes multiple letters
Number receiving-transmitting device (i.e. signal emitting/receiving).The signal emitting/receiving can for ultrasonic signal emitting/receiving or
Person's electromagnetic wave signal emitting/receiving.The transmitting sense and reception sense and brill of the signal emitting/receiving
The direction of advance of column is parallel (i.e. parallel with wellbore direction).When needing identification downhole debris bed situation in real time, drill string stops rotation
Turn, the frequency of signal emitting/receiving inside setting signal receiving unit, signal receiving unit starts to emit signal and receives institute
Emit signal and pass through the signal returned after drilling fluid or cutting bed, brill is passed through with the signal is received according to the signal of each transmitting
Time interval between well liquid or cutting bed return signal can export different testing results.
More than, the speed propagated in different media due to signal is simultaneously different, and the speed propagated in drilling fluid is slower,
The fast speed propagated in cutting bed shows that the signal is sent out if transmitting signal and the interval time for receiving signal are shorter
Penetrate/receiver corresponding to position be that cutting bed, whereas if interval time is longer then shows the signal emitting/receiving
To position be drilling fluid.Here the judgement time can be setting value or empirical value.
The information coding transmission unit can be according to the position at the place in well of signal receiving-transmitting device in signal sending and receiving subelement
It sets and is numbered；Testing result is cutting bed, and the first number of output, testing result is drilling fluid, the second number of output；It will be described
The corresponding number of testing result is encoded with Position Number one-to-one correspondence, obtains the coding result of each signal receiving-transmitting device.Institute
It states after signal solution code recognition device receives coding result and is transmitted to signal solution code recognition device, signal solution code recognition device is according to letter
The coding rule of number coding transmission unit is decoded, and identifies the testing result of each signal sending and receiving subelement, and then identify
The corresponding position of each signal emitting/receiving is cutting bed or drilling fluid out, decoding recognition result is transmitted to later aobvious
Show device, shows the simulation drawing of cutting bed over the display according to the borehole diameter of setting and decoding recognition result.
More than, for example, the corresponding position of signal receiving-transmitting device is that cutting bed then exports " 1 ", corresponding position be drilling fluid then
It exports " 0 ".After signal receiving-transmitting device is numbered in a certain depth of the Signal coding transmission unit in well, such as according to up time
Needle direction is numbered from some the signal receiving-transmitting device being circumferentially arranged as H01, H02, H03, will test result " 1 " or " 0 " coding
H010, H021, H031 are generated after corresponding number, H010 is then indicated under the depth, and the corresponding position of coding H01 receiving-transmitting device is bored
Well liquid, the corresponding position cutting bed of number H021, H031 receiving-transmitting device.
In the present embodiment, as shown in Fig. 2 (a), cutting bed identification device may include be sleeved on the outside of drill string 21 close
Capsule 22.The shape of shown capsul is adapted with the shape of drill string.For example, the shape of capsul can be cylinder.Signal
Sending and receiving subelement 23 includes the first signal sending and receiving subelement 231 and second signal sending and receiving subelement 232.Each signal sending and receiving is single
Member includes multiple signal receiving-transmitting devices 24, and signal receiving-transmitting device included by each signal sending and receiving subelement is along capsul circumferential direction
It is evenly arranged between drill string and capsul and is located at the both side ends of capsul.Signal sending and receiving close to drill bit direction side is single
The sense that signal receiving-transmitting device in member is emitted along towards drill bit direction, sent out by the signal receiving-transmitting device far from drill bit direction side
The sense penetrated is backwards to drill bit direction.Shown Signal coding transmission unit 25 and power supply unit 26 are set to shown capsul
It is internal.Shown signal transmitting apparatus 27 can be set in the outer surface of drill string 21.Described 28 be drilling fluid circulation passage.Fig. 2 (b)
The side view arranged for signal receiving-transmitting device in Fig. 2 (a).Signal as shown in Fig. 2 (b), in the signal sending and receiving subelement 23
Receiving-transmitting device 24 is along the circumferential inside for being uniformly arranged on capsul 22 of drill string 21.The cutting bed identification device can be with drill string screw thread
Connection, such as the pin end and female connector that the helical form of 28 two sides of drilling fluid circulation passage in Fig. 2 is screwed connection.
In the present embodiment, as shown in Fig. 3 (a), the cutting bed identification device can also include with certain thickness
Shell 31, circulation road 32 and connector 33.The shape that the shell 31 encloses can be cylindric.Shown shell 31 is by first
Shell 311 is mutually nested with second housing 332 into (shown in such as Fig. 3 (b)).It is formed between first shell and second housing
Hollow structure.The circulation road 32 is set in the cavity structure formed by shell 31.The circulation road 32 is for drilling fluid
Circulation.The shape of the circulation road 32 can be cylindric, diamond shape etc., and certainly, circulation road shape of the invention is without being limited thereto, example
It such as, can also be rectangular-shape.The connector 33 includes the first connector 331 and the second connector 332.First connector 331 can
To connect with the side of the first drill string section 35, second connector 332 can be connect with the side of the second drill string section 36.The type
Number coding transmission unit 37 and power supply unit 38 are set to the inside of shell.The signal transmitting apparatus 39 can be set in brill
The surface of column.The first drill string section, cutting bed identification device, the second drill string section constitute new drill string after being connected with each other to carry out
Drilling well.Signal receiving unit 34 includes third signal sending and receiving subelement 341 and fourth signal sending and receiving subelement 342.Described
Three signal sending and receiving subelements and fourth signal sending and receiving subelement are set to the both ends of shell 31.Signal sending and receiving close to drill bit one end
Towards shaft bottom, the signal in the signal receiving unit far from drill bit one end connects the signal direction of the launch of signal receiving-transmitting device in unit
The signal direction of the launch of device is sent out towards well head.Fig. 3 (b) is the side view of Fig. 3 (a) cutting bed identification device, believes sending and receiving for third
Subelement schematic diagram.As shown in Fig. 3 (b), the signal receiving-transmitting device 3411 in third signal sending and receiving subelement 341 is located at first shell
Between second shell.The circulation road 32 is set in the cavity being enclosed by shell 31.
In the present embodiment, the signal transmitting apparatus can be LWD instrument or MWD instrument, for example, can be former drilling well
Existing LWD instrument or MWD instrument in the course of work.The Signal coding transmission unit is provided with to be inputted with signal transmitting apparatus
Hold mutually matched output translation interface.The signal solution code recognition device is provided with and LWD instrument or MWD instrument output end phase
The input translation interface mutually cooperated.The signal that the output translation interface can export Signal coding transmission unit is converted into just
In LWD instrument or the data-signal of MWD instrumental transmission.The input translation interface can be by LWD instrument or MWD instrumental transmission
Data-signal is converted into the available data-signal of signal solution code recognition device.The pulse signal energy that LWD instrument or MWD instrument generate
It is enough transferred on signal solution code recognition device.The signal solution code recognition device may include pressure sensor.The pressure passes
Sensor can be decoded pulse signal with computer, on the pulse signal transmission to computer received by decoded knot
Fruit shows over the display.
In the present embodiment, signal receiving-transmitting device included in the signal sending and receiving subelement can identify feelings according to practical
Condition is configured, for example, 8~16 signal receiving-transmitting devices can be set in each signal sending and receiving subelement, further, can with 10~
14 signal receiving-transmitting devices.For example, 12 signal receiving-transmitting devices, signal receiving-transmitting device number certainly of the invention is without being limited thereto.The letter
Multiple signal sending and receiving subelements can be set in number receiving unit.Signal receiving-transmitting device in each signal sending and receiving subelement is located at same
Plane, it is arranged in parallel between signal sending and receiving subelement and signal sending and receiving subelement.
The above exemplary embodiments for a better understanding of the present invention, below with reference to making for specific cutting bed identifying system
With being further described.
Firstly, first having configured Signal coding transmitting device according to the wellbore for the oil/gas well to be crept into before drill string work
With the parameter of signal solution code recognition device, when the measurement and transmission of the signal emitting/receiving in setting signal receiving unit
Between be spaced, then cutting bed identification device is mounted on drill string start carry out drill-well operation.
Secondly, drill string stops rotating, signal emitting/receiving root when needing the cutting bed situation of identification underground in real time
Start to emit signal and receive transmitting signal according to the frequency set to pass through the signal returned after drilling fluid or cutting bed, according to
Different time intervals, exports different testing results between each signal emitting/receiving signal transmitting and reception.If interval
Time is short, shows that the corresponding position of signal emitting/receiving is cutting bed, and output 1 if interval time is long, shows the signal
The corresponding position of emitting/receiving is drilling fluid, output 0.
Then, Signal coding transmission unit compiles signal emitting/receiving according to the position where signal emitting/receiving
Number.For example, cutting bed identification device is close to shaft bottom section, and the emitting/receiving in the cross section A of a certain depth H is compiled
Number, number is according to carrying out clockwise as A01, A02, A03 until A12, and the testing result of each signal emitting/receiving
Coding is corresponded with number, the coding of testing result 1 or 0 after corresponding number, the signal for obtaining cross section A emits/connects
Receive device coding result, as shown in Fig. 4 (a), coding result: A010, A020, A030, A040, A050, A061, A071, A081,
A090, A100, A110, A120, wherein 40 indicate wellbore in Fig. 4 (a), and 41 indicate signal receiving-transmitting device.
The result that Signal coding transmission unit encodes first is transmitted to signal transmitting apparatus, is passed again by signal later
Defeated device real-time Transmission to ground cutting bed signal solution code recognition device.
Cutting bed signal solution code recognition device is decoded according to the coding rule of Signal coding transmission unit, is identified every
The testing result of a signal emitting/receiving, so identify the corresponding position of each signal emitting/receiving be cutting bed also
It is drilling fluid, as shown in figure 4, identifying the signal emitting/receiving that number is A06, A07 and A08 in a certain depth H
Testing result is 1, then is cutting bed at corresponding position, decoding recognition result is transmitted to display later, according to setting
Borehole diameter and decoding recognition result show the simulation drawing of the cutting bed 42 as shown in Fig. 4 (b) over the display.
Finally, optimizing drilling method according to cutting bed simulation drawing and continuing to creep into.
In conclusion the present invention by cutting bed identification device detect underground cutting bed, later by coding, transmission and
Decoding, over the display, staff can pass through for display in the form of cutting bed simulation drawing the case where detecting cutting bed
Under display real time discriminating and monitoring well the case where cutting bed, drilling method can be optimized according to cutting bed simulation drawing, convenient for boring
Into the lasting progress of work；The present invention can emit the time interval between reception according to signal, return to different detection knots
Fruit realizes the real-time detection of downhole debris bed；Cutting bed identifying system of the invention can be realized the real-time detection of cutting bed, reality
When handle, avoid drill string for a long time stall the case where, improve the working efficiency of drilling.
Although those skilled in the art should be clear above by combining exemplary embodiment to describe the present invention
Chu can carry out exemplary embodiment of the present invention each without departing from the spirit and scope defined by the claims
Kind modifications and changes.
Claims (9)
1. a kind of cutting bed identifying system, which is characterized in that the system comprises cutting bed identification device, signal transmitting apparatus,
Signal solution code recognition device and display device, wherein
The cutting bed identification device is set on drill string, for acquiring cutting bed information data, and can be according to coding rule
The information data is encoded, coding result is obtained；
The signal transmitting apparatus receives the coding result, and coding result is transmitted to signal solution code recognition device；
The signal solution code recognition device, which is set to ground, can receive coding result, and be tied according to the coding rule to coding
Fruit is decoded identification to obtain decoding recognition result；
The display device receives the decoding recognition result, and is drawn according to decoding recognition result and show that cutting bed is simulated
Figure.
2. cutting bed identifying system according to claim 1, which is characterized in that the cutting bed identification device includes signal
Receiving unit, Signal coding transmission unit and power supply unit, wherein
The signal receiving unit includes multiple signal sending and receiving subelements, and each signal sending and receiving subelement includes multiple signal sending and receiving
Multiple signal receiving-transmitting devices of device, each signal sending and receiving subelement are arranged circumferentially along cutting bed identification device, and the signal connects
Hair device can emit signal and receive the return signal signaled after drilling fluid or cutting bed, the signal sending and receiving list
Member can be according to transmitting signal and the time interval output test result for receiving return signal；
The information coding transmission unit can receive the testing result of the signal receiving unit output, and utilize each signal
The location information of signal receiving-transmitting device carries out corresponding coding with testing result and obtains coding result in sending and receiving subelement, and coding is tied
Fruit is transmitted to signal transmitting apparatus；
Said supply unit is connect with signal receiving unit and Signal coding transmission unit respectively, can be signal receiving unit
It powers with Signal coding transmission unit.
3. cutting bed identifying system according to claim 2, which is characterized in that the cutting bed identification device further includes set
Capsul on the outside of drill string, between the capsul and drill string be hollow structure, the Signal coding transmission unit and
Power supply unit is set in the hollow structure, and the multiple signal receiving-transmitting device is arranged on capsul, the signal sending and receiving list
Member includes being located at the first signal sending and receiving subelement close to drill bit side and the second signal sending and receiving subelement far from drill bit side, and first
Signal of the sense of signal receiving-transmitting device transmitting in signal sending and receiving subelement towards shaft bottom, in second signal sending and receiving subelement
The sense of receiving-transmitting device transmitting is towards well head.
4. cutting bed identifying system according to claim 2, which is characterized in that the cutting bed identification device further includes shell
Body, circulation road and the connector that cutting bed identification device both ends are arranged in, the shell and connector enclose cavity structure, described
Circulation road is disposed through in shown cavity structure and circulates for drilling fluid, and the shell includes outside the first shell and second
Shell, first shell is mutually nested with second housing to form the shell, is between the first shell and second shell
Hollow structure, signal receiving-transmitting device are evenly distributed in the hollow structure, and the connector includes the first connector and the second connector, described
First connector is set to one end of shell, and for connecting with the side of the first drill string section, second connector is set to shell
The other end, for connecting with the side of the second drill string section, the Signal coding transmission unit and power supply unit are set to shell
Inside.
5. cutting bed identifying system according to claim 4, which is characterized in that the signal receiving unit includes being located at the
The third signal sending and receiving subelement of one joint side and fourth signal sending and receiving subelement positioned at the second joint side, the third signal
The distance in sending and receiving subelement to shaft bottom is less than distance of the fourth signal sending and receiving subelement to shaft bottom, the third signal sending and receiving
Signal sending and receiving of the sense of signal receiving-transmitting device transmitting in subelement towards shaft bottom, in the fourth signal sending and receiving subelement
The sense of device transmitting is towards well head.
6. cutting bed identifying system according to claim 4, which is characterized in that first connector and the second connector are silk
Buckle joint.
7. cutting bed identifying system according to claim 2, which is characterized in that the process packet for obtaining coding result
Include: according to signal receiving-transmitting device in signal sending and receiving subelement, the position at place in well is numbered information coding transmission unit；Institute
Stating testing result is cutting bed, and the first number of output, the testing result is drilling fluid, the second number of output；By the detection
As a result corresponding number is encoded with Position Number one-to-one correspondence, obtains the coding result of each signal receiving-transmitting device.
8. cutting bed identifying system according to claim 2, which is characterized in that the Signal coding transmission unit is provided with
With the mutually matched output translation interface of signal transmitting apparatus input terminal, the output translation interface can transmit Signal coding
The signal of unit output is converted into the data-signal convenient for signal transmitting apparatus transmission, and the signal solution code recognition device has and believes
Number mutually matched input translation interface of transmitting device output end, the input translation interface can transmit signal transmitting apparatus
Data-signal be converted into the available data-signal of signal solution code recognition device.
9. cutting bed identifying system according to claim 2, which is characterized in that each signal sending and receiving subelement setting
There are 8~16 signal receiving-transmitting devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910814508.8A CN110397433B (en) | 2019-08-30 | 2019-08-30 | Rock debris bed recognition system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910814508.8A CN110397433B (en) | 2019-08-30 | 2019-08-30 | Rock debris bed recognition system |
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| CN110397433A true CN110397433A (en) | 2019-11-01 |
| CN110397433B CN110397433B (en) | 2024-07-19 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112302634A (en) * | 2020-10-26 | 2021-02-02 | 中国石油天然气集团有限公司 | Method for judging position and accumulation degree of rock debris bed |
| CN112761525A (en) * | 2021-02-05 | 2021-05-07 | 西南石油大学 | Horizontal annular self-oscillation pulse detritus bed clearing device structure and clearing method |
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