CN110454149A - A kind of cutting bed recognition methods and position decision method - Google Patents
A kind of cutting bed recognition methods and position decision method Download PDFInfo
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- CN110454149A CN110454149A CN201910814422.5A CN201910814422A CN110454149A CN 110454149 A CN110454149 A CN 110454149A CN 201910814422 A CN201910814422 A CN 201910814422A CN 110454149 A CN110454149 A CN 110454149A
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/12—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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/02—Analysing fluids
- G01N29/024—Analysing fluids by measuring propagation velocity or propagation time of acoustic waves
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
- G01N29/07—Analysing solids by measuring propagation velocity or propagation time of acoustic waves
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Abstract
The present invention provides a kind of cutting bed recognition methods and position decision methods.The recognition methods includes: that several signal sending and receiving points are arranged in well, according to the detectable signal of transmitting and receive the time interval returned between detectable signal, it is cutting bed or drilling fluid that position is corresponding in well where differentiating each signal sending and receiving point, obtains detection result；Coding rule is set, detection result is encoded using coding rule, obtains coding result；Coding result is transmitted to ground and coding result is decoded, cutting bed is identified after decoding, obtains decoding recognition result；According to borehole diameter and decoding recognition result, cutting bed simulation drawing is drawn, completes cutting bed identification.The position decision method includes the position according to the location determination cutting bed of signal sending and receiving point in well.The present invention under real time discriminating and monitoring well the case where cutting bed, can optimize drilling method according to obtained cutting bed simulation drawing, convenient for creeping into the lasting progress of work.
Description
Technical field
The present invention relates to oil and gas exploration technical fields, more particularly, be related to a kind of cutting bed recognition methods and
Position decision method.
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 recognition methods of situation.
To achieve the goals above, an aspect of of the present present invention provides a kind of cutting bed recognition methods, the recognition methods
It may comprise steps of: arranging several signal sending and receiving points in well, each signal sending and receiving point emission detection signal and can connect
Return detectable signal of the detectable signal after drilling fluid or cutting bed is received, according to the detectable signal of transmitting and receives return
Time interval between detectable signal differentiates that position is corresponding in well where each signal sending and receiving point in several signal sending and receiving points
Be cutting bed or drilling fluid, obtain detection result；Detection result is encoded using coding rule, obtains coding knot
Fruit；Coding result is transmitted to ground and coding result is decoded, cutting bed is identified after decoding, obtains decoding identification knot
Fruit；According to borehole diameter and decoding recognition result, cutting bed simulation drawing is drawn, completes cutting bed identification.
It is described that several signals are arranged in drilling well in an exemplary embodiment of cutting bed recognition methods of the invention
Sending and receiving point may include being arranged circumferentially several signal sending and receiving points along drilling well.
In an exemplary embodiment of cutting bed recognition methods of the invention, several signal sending and receiving points be can wrap
First group of signal sending and receiving point and second group of signal sending and receiving point are included, first group of signal sending and receiving point and second group of signal sending and receiving point are equal
It is arranged circumferentially along well, each signal sending and receiving point in first group of signal sending and receiving point is generally aligned in the same plane and the plane is located at
First position in well, each signal sending and receiving point in second group of signal sending and receiving point is generally aligned in the same plane and the plane is located in well
The second position, the linear distance of the first position far from shaft bottom are less than linear distance of the second position far from shaft bottom.
In an exemplary embodiment of cutting bed recognition methods of the invention, which is characterized in that described to utilize coding
It may include: that each signal sending and receiving point in several signal sending and receiving points is numbered that rule, which carries out coding to detection result,；When
Position corresponds to cutting bed in well where signal sending and receiving point, and the first number of output, position corresponds in well where signal sending and receiving point
Drilling fluid, the second number of output；The number that signal sending and receiving point number is exported with the signal sending and receiving point is subjected to corresponding combination, is obtained
Coding result.
In an exemplary embodiment of cutting bed recognition methods of the invention, the detectable signal can be ultrasonic wave
Signal or electromagnetic wave signal.
In an exemplary embodiment of cutting bed recognition methods of the invention, the recognition methods can also be included in
Rendering parameter is configured according to borehole diameter before drawing cutting bed simulation drawing.
In an exemplary embodiment of cutting bed recognition methods of the invention, the recognition methods can further include
Detectable signal is set before emission detection signal and emits and return the frequency that detectable signal receives.
In an exemplary embodiment of cutting bed recognition methods of the invention, the signal sending and receiving point be can be set
Drill string surface or the borehole wall.
Another aspect provides a kind of cutting bed position decision method, the determination method may include following
Step: arranging signal sending and receiving point in well, and the signal sending and receiving point emission detection signal and can receive the detectable signal and pass through
Return detectable signal after drilling fluid or cutting bed, according to the detectable signal of transmitting and receive return detectable signal between when
Between be spaced, position is corresponding is cutting bed or drilling fluid in well where differentiating the signal sending and receiving point, completes landwaste bed position
Determine.
Compared with prior art, the beneficial effect comprise that
(1) recognition methods through the invention can cutting bed situation under real time discriminating and monitoring well, can be according to obtaining
Cutting bed simulation drawing optimize drilling method, convenient for drilling well work lasting progress；
(2) recognition methods of the invention is more acurrate relative to the result of theory analysis and experiment simulation, can take in time
Measure Cutting Disposal, prevents down-hole accident；
(3) real-time detection to cutting bed, processing in real time are convenient in recognition methods of the invention, avoid drill string and stop for a long time
The case where turning improves the working efficiency of drilling well；
(4) cutting bed position decision method of the invention can the position to cutting bed quickly determined, can optimize
Cutting bed removal measure.
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 recognition methods flow chart of an illustrative embodiment of the invention；
Schematic diagram Fig. 2 shows the signal sending and receiving point of an illustrative embodiment of the invention along drill string circumferentially；
Fig. 3 shows the coding result schematic diagram and cutting bed simulation drawing of an illustrative embodiment of the invention.
Specific embodiment
Hereinafter, cutting bed recognition methods according to the present invention will be described in detail in conjunction with attached drawing and exemplary embodiment
And cutting bed position decision method.
Fig. 1 shows the cutting bed recognition methods flow chart of an illustrative embodiment of the invention.Fig. 2 shows the present invention
Schematic diagram of the signal sending and receiving point of one exemplary embodiment along drill string circumferentially.Fig. 3 shows an example of the present invention
The coding result schematic diagram and cutting bed simulation drawing of embodiment, wherein figure (a) is coding result schematic diagram, and figure (b) is landwaste
Bed simulation drawing.
An aspect of of the present present invention provides a kind of cutting bed recognition methods, at one of cutting bed recognition methods of the invention
In exemplary embodiment, as shown in Figure 1, the recognition methods may include:
S01 arranges signal sending and receiving point in well, according to the detectable signal of signal sending and receiving point transmitting and receives return detection
Time interval between signal, corresponding differentiation signal sending and receiving point position in well is cutting bed or drilling fluid, is detected
As a result.
More than, several signal sending and receiving points can be arranged in well, can be emitted/be connect in each signal sending and receiving point setting signal
Device (such as signal transmitting receives all-in-one machine) is received to complete the transmitting and reception of detectable signal.The signal sending and receiving point can emit
Detectable signal simultaneously receives return detectable signal of the detectable signal after drilling fluid or cutting bed.It can be arranged in well several
A signal sending and receiving point, according between the detectable signal of each signal sending and receiving point transmitting and the received time returned between detectable signal
Every, determine signal sending and receiving point position in well it is corresponding be cutting bed or drilling fluid.Since detectable signal is in different medium
The speed of middle propagation is different, and the speed propagated in drilling fluid is slower, the fast speed propagated in cutting bed.If transmitting
Detectable signal and receive the emission detection signal return detectable signal between interval time it is short, then may indicate that the letter
Corresponding number sending and receiving point present position in well is cutting bed；If interval time is long, the signal sending and receiving point may indicate that
It is drilling fluid that present position is corresponding in well.Here the judgement time can be given value or empirical value.
S02 is arranged coding rule, is encoded using coding rule to detection result, obtain coding result.
Coding result is transmitted to ground and is decoded to coding result, cutting bed is identified after decoding, obtained by S03
Decode recognition result.
S04 draws cutting bed simulation drawing according to borehole diameter and decoding recognition result, completes cutting bed identification.According to
The position of above-mentioned interval time and each signal sending and receiving point in well, can identify the height and thickness of cutting bed.
In the present embodiment, the frequency with received detectable signal can also be emitted signal sending and receiving point before step S01
Rate is configured.For example, can be configured according to size, the thickness of cutting bed etc. of well when setting.Signal sending and receiving point according to
The frequency set carries out the transmitting and reception of detectable signal.
It in the present embodiment, can be before step S01, according to will creep into for the ease of drawing cutting bed simulation drawing
The parameter needed in parameter, decoding parametric and the drawing process that the borehole diameter configuration codes result of oil/gas well is transmitted, according to
The diameter of wellbore draws cutting bed simulation drawing.Certainly, above-mentioned configuration parameter can also be configured in step S04.
In the present embodiment, several signal sending and receiving points can be arranged in well.The signal sending and receiving point, which can be set, to be bored
Column surface also can be set on the inner wall in well or other are in the drilling tool of underground.Several signal sending and receiving points can edge
Being arranged circumferentially for well (oil/gas well).The signal direction of the launch of signal sending and receiving point is parallel with wellbore (drilling well) direction.
Several signal sending and receiving points can be divided into multiple groups signal sending and receiving point.The each letter for including in every group of signal sending and receiving point
The setting of number sending and receiving point is in the same plane.Plane composed by every group of signal sending and receiving point at regular intervals can be arranged in well
In.For example, several signal sending and receiving points can be divided into two groups of signal sending and receiving points.First group of signal sending and receiving point and second group of signal
Sending and receiving point can respectively include several along the circumferentially spaced individual signals sending and receiving point of well, for example, every group of signal sending and receiving point
It may include 8~16 signal sending and receiving points, may include 12 signal sending and receiving points further.First group of signal sending and receiving point can
With at the first position that is arranged in well, the second place in well is can be set in second signal sending and receiving point.Described first
The linear distance away from shaft bottom is set less than linear distance of the second position far from shaft bottom.That is first group of signal sending and receiving point and second group of signal
Sending and receiving point can be mutually from a certain distance.The detectable signal of first group of signal sending and receiving point transmitting can be described towards shaft bottom
The detectable signal of second group of signal sending and receiving point transmitting can be towards well head.
More than, the signal sending and receiving point can be arranged in the surface of drill string.Signal sending and receiving point can be set on drill string surface
And it is arranged circumferentially along drill string.For example, signal sending and receiving point as described above includes first group of signal sending and receiving point and second group of letter
Number sending and receiving point.As shown in Fig. 2, circumferential direction uniform cloth of first group of signal sending and receiving point each signal sending and receiving point for including along drill string 21
It sets.First group of signal sending and receiving point may include 12 signal sending and receiving points 22.Likewise, second group of signal sending and receiving point include it is each
Signal sending and receiving point being arranged circumferentially along drill string.The position of first group of signal sending and receiving point setting can be close to drill bit
End, the position of second group of signal sending and receiving point can than first group signal sending and receiving point be located closer to drilling tail end.In order to better
The signal emitting/receiving of signal sending and receiving point setting is protected, protective shell can be installed in the outer surface of signal emitting/receiving
To be protected to it.
In the present embodiment, coding rule can be set to encode obtained detection result.The coding rule can
To include: to press the location of to impinge upon in well to each signal sending and receiving in several signal sending and receiving points to be numbered；Work as signal
Position corresponds to cutting bed in well where sending and receiving point, and the first number of output, position corresponds to drilling well in well where signal sending and receiving point
Liquid, the second number of output；The number that signal sending and receiving point number is exported with the signal sending and receiving point is subjected to corresponding combination, is encoded
As a result.
For example, as shown in Fig. 2, signal sending and receiving point to be arranged in the surface of drill string 21, signal sending and receiving point 22 according to position into
Row clockwise number, number consecutively A01, A02, A03 ... A12.If the location of signal sending and receiving point is cutting bed,
It exports " 1 "；If the location of signal sending and receiving point is drilling fluid, " 0 " is exported.It is assumed that in tri- signals of A06, A07, A08
Corresponding sending and receiving point position is cutting bed, then corresponds number and the number of output, it can by the number of output
Be documented in behind number, obtain coding result A010, A020, A030, A040, A050, A061, A071, A081, A090,
A100, A110, A120, as shown in Fig. 3 (a), wherein 31 be drill string, and 32 be signal sending and receiving point.Certainly, coding staff of the invention
Method is without being limited thereto, can be using other coding methods.
In the present embodiment, shown detectable signal can be the ultrasonic signal or electromagnetic wave letter of signal sending and receiving point transmitting
Number.
In the present embodiment, the result of the coding is transmitted to behind ground can use above-mentioned coding rule and solves
Code, identify each signal sending and receiving point detection result, and then identify the corresponding position of each signal sending and receiving point be cutting bed also
It is drilling fluid.Then cutting bed simulation drawing is drawn according to the result of borehole diameter and decoding identification.For example, such as rock in Fig. 3 (b)
Considering bed simulation drawing 33 to be worth doing is the cutting bed simulation drawing obtained according to 3 (a) encoding detection results.Signal sending and receiving point A06, A07, A08 couple
The number answered be " 1 ", show above three signal sending and receiving point position it is corresponding be cutting bed.
Another aspect provides a kind of cutting bed position decision methods, in cutting bed location determination of the invention
In one exemplary embodiment of method, the determination method be may comprise steps of:
In well arrange signal sending and receiving point, signal sending and receiving point can emission detection signal and receive the detectable signal pass through bore
Return detectable signal after well liquid or cutting bed；According to the detectable signal of transmitting and receive the time returned between detectable signal
Interval, position is corresponding is cutting bed or drilling fluid in well where differentiating the signal sending and receiving point, completes landwaste bed position and sentences
It is fixed.
More than, the signal sending and receiving point in well can be set on the borehole wall in well, also can be set on drill string.When can be with
The position of signal sending and receiving point is known it is determined that whether the position has cutting bed, if there is cutting bed can further be sentenced
Position where the fixed cutting bed in well.
In conclusion recognition methods through the invention can pass through cutting bed under display real time discriminating and monitoring well
Situation can optimize drilling method according to obtained cutting bed simulation drawing, convenient for creeping into the lasting progress of work；It can adopt in time
Measure Cutting Disposal is taken, down-hole accident is prevented；It can be avoided the case where drill string stalls for a long time, improved drilling
Working efficiency.Cutting bed position decision method can the position to cutting bed quickly determined, can optimize cutting bed removing
Measure.
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 (10)
1. a kind of cutting bed recognition methods, which is characterized in that the recognition methods the following steps are included:
Arrange several signal sending and receiving points in well, each signal sending and receiving point emission detection signal and can receive the detectable signal and wear
Return detectable signal after crossing drilling fluid or cutting bed according to each signal sending and receiving point emission detection signal and receives return spy
The time interval between signal is surveyed, differentiates that position is corresponding in well where each signal sending and receiving point in several signal sending and receiving points
It is cutting bed or drilling fluid, obtains detection result；
Coding rule is set, detection result is encoded using coding rule, obtains coding result；
Coding result is transmitted to ground and coding result is decoded, cutting bed is identified after decoding, obtains decoding identification
As a result；
According to borehole diameter and decoding recognition result, cutting bed simulation drawing is drawn, completes cutting bed identification.
2. cutting bed recognition methods according to claim 1, which is characterized in that described to arrange that several signals connect in drilling well
Hair point includes by several signal sending and receiving point being arranged circumferentially along well.
3. cutting bed recognition methods according to claim 1 or 2, which is characterized in that several signal sending and receiving points include
First group of signal sending and receiving point and second group of signal sending and receiving point, first group of signal sending and receiving point and second group of equal edge of signal sending and receiving point
Well is arranged circumferentially, and each signal sending and receiving point in first group of signal sending and receiving point is generally aligned in the same plane and the plane is located at well
Middle first position, each signal sending and receiving point in second group of signal sending and receiving point is generally aligned in the same plane and the plane is located in well
Two positions, the linear distance of the first position far from shaft bottom are less than linear distance of the second position far from shaft bottom.
4. cutting bed recognition methods according to claim 3, which is characterized in that the signal launch party of the signal sending and receiving point
To parallel with drilling direction, towards shaft bottom, second group of signal connects the detectable signal of first group of signal sending and receiving point transmitting
A detectable signal for transmitting is sent out towards well head.
5. cutting bed recognition methods according to claim 1, which is characterized in that described to utilize coding rule to detection result
The step of being encoded include:
Each signal sending and receiving point in several signal sending and receiving points is numbered；
Position corresponds to cutting bed, the first number of output, position in well where signal sending and receiving point in well where signal sending and receiving point
Correspond to drilling fluid, the second number of output；
The number that signal sending and receiving point number is exported with the signal sending and receiving point is subjected to corresponding combination, obtains coding result.
6. cutting bed recognition methods according to claim 1, which is characterized in that the detectable signal be ultrasonic signal or
Electromagnetic wave signal.
7. cutting bed recognition methods according to claim 1, which is characterized in that the recognition methods further includes drawing rock
Bed simulation drawing is considered to be worth doing before according to the parameter and decoding parametric of the transmission of the diameter configuration codes result of wellbore.
8. cutting bed recognition methods according to claim 1, which is characterized in that the recognition methods further includes visiting in transmitting
Detectable signal is set before surveying signal and emits and return the received frequency of detectable signal.
9. cutting bed recognition methods according to claim 1, which is characterized in that several signal sending and receiving point settings are being bored
Column surface or the borehole wall.
10. a kind of cutting bed position decision method, which is characterized in that the determination method the following steps are included:
In well arrange signal sending and receiving point, the signal sending and receiving point can emission detection signal and receive the detectable signal pass through bore
Return detectable signal after well liquid or cutting bed according to the detectable signal of transmitting and receives the time returned between detectable signal
Interval, position is corresponding is cutting bed or drilling fluid in well where differentiating the signal sending and receiving point, completes landwaste bed position and sentences
It is fixed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910814422.5A CN110454149B (en) | 2019-08-30 | 2019-08-30 | Rock debris bed identification method and position determination method |
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|---|---|---|---|
| CN201910814422.5A CN110454149B (en) | 2019-08-30 | 2019-08-30 | Rock debris bed identification method and position determination method |
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| CN110454149B CN110454149B (en) | 2023-03-24 |
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| CN111236869A (en) * | 2020-01-10 | 2020-06-05 | 中国石油大学(北京) | Method, device and equipment for determining rock debris distribution under pump stop working condition |
| CN111236869B (en) * | 2020-01-10 | 2021-08-10 | 中国石油大学(北京) | Method, device and equipment for determining rock debris distribution under pump stop working condition |
| 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 |
| CN112302634B (en) * | 2020-10-26 | 2024-04-26 | 中国石油天然气集团有限公司 | Method for judging and identifying positions and accumulation degree of rock debris bed |
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