CN112255701B - Multi-contact downhole junk imaging method and device, electronic equipment and storage medium - Google Patents

Multi-contact downhole junk imaging method and device, electronic equipment and storage medium Download PDF

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Publication number
CN112255701B
CN112255701B CN202011070634.6A CN202011070634A CN112255701B CN 112255701 B CN112255701 B CN 112255701B CN 202011070634 A CN202011070634 A CN 202011070634A CN 112255701 B CN112255701 B CN 112255701B
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displacement detection
displacement
detection array
falling
contact
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CN112255701A (en
Inventor
尹立山
曹宇欣
杨建明
史浩然
王凡
安轶文
尧友
谭成龙
张英男
李�杰
任立伟
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China National Petroleum Corp
China Petroleum Logging Co Ltd
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China National Petroleum Corp
China Petroleum Logging Co Ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V9/00Prospecting or detecting by methods not provided for in groups G01V1/00 - G01V8/00
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/20Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring contours or curvatures, e.g. determining profile
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/28Measuring arrangements characterised by the use of electric or magnetic techniques for measuring contours or curvatures
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/08Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Electromagnetism (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)

Abstract

The disclosure relates to a multi-contact downhole junk imaging method and device, a storage medium and electronic equipment, and relates to the field of oilfield logging, wherein the multi-contact downhole junk imaging method comprises the following steps: acquiring a plurality of displacement information generated on the surface of the underground junk; imaging the downhole junk based on the plurality of displacement information. The embodiment of the disclosure can realize detection of the surface shape of the falling object.

Description

Multi-contact downhole junk imaging method and device, electronic equipment and storage medium
Technical Field
The disclosure relates to the technical field of petroleum logging, in particular to a multi-contact downhole junk imaging method and device, electronic equipment and storage medium.
Background
In the construction process of logging operation, the condition that logging downhole instruments fall into a well can occur due to various reasons such as well conditions, and fishing operation is needed, wherein the most important work of the fishing operation is to detect the depth and the shape of clearly fallen objects.
The traditional method is that a lower electrode or magnetism is positioned, a fish touching instrument is used for touching the resistance, the resistance depth is displayed, the shape and the state of the top of a falling object cannot be displayed, for special cases, in order to master whether the falling object is centered in a well or is attached to a well wall, the traditional method is that a lead mark is used, a mould is taken down by a drilling tool or is put down by a cable, and the lead mark is formed by high-speed undershooting, so that the cost is too high and the time consumption is too long.
Disclosure of Invention
The disclosure provides a multi-contact underground junk imaging method and device, electronic equipment and a storage medium technical scheme, which are used for solving the problems of high detection difficulty of underground junk, too high junk salvaging cost and too long time consumption at present.
According to an aspect of the present disclosure, there is provided a multi-contact downhole junk imaging method, comprising:
acquiring a plurality of displacement information generated on the surface of the underground junk;
imaging the downhole junk based on the plurality of displacement information.
Preferably, the method for acquiring a plurality of displacement information generated by the surface of the down-hole junk includes:
Setting each falling depth of the displacement detection array, and controlling the displacement detection array to fall according to the each falling depth;
Respectively determining displacement information generated by the displacement detection array on the surface of the corresponding underground junk at each falling depth;
All displacement information generated by the displacement detection array during the falling process is determined as the plurality of displacement information.
Preferably, the method for acquiring a plurality of displacement information generated by the surface of the down-hole junk further comprises:
if the displacement information generated at each falling depth is the displacement detection mechanism corresponding to the corresponding probe in the displacement detection array generates a contact instruction and determines the number of the contact instructions at each falling depth;
And controlling whether the displacement detection array falls according to the number of contact instructions before each falling depth and after each falling depth.
Preferably, the method for controlling whether the displacement detection array falls according to the number of contact instructions before each falling depth and after each falling depth comprises the following steps:
If the number of the contact instructions before each falling depth and after each falling depth is equal, controlling the displacement detection array to stop falling, and determining all layer position information before the falling depth as the plurality of displacement information; otherwise, controlling the displacement detection array to fall;
And/or the number of the groups of groups,
Calculating the difference value of the contact instruction numbers before the falling depth and after each falling depth;
If the difference value is smaller than or equal to a set value, controlling the displacement detection array to stop falling, and determining all displacement information before the falling depth as the plurality of displacement information; otherwise, the displacement detection array is controlled to fall.
Preferably, the method for imaging the downhole junk based on the plurality of displacement information comprises:
And carrying out three-dimensional reconstruction according to the plurality of displacement information and the corresponding surface layer position of the underground junk, and completing imaging of the underground junk.
Preferably, the method for three-dimensional reconstruction according to the plurality of displacement information and the corresponding surface layer of the down-hole junk comprises the following steps:
Determining displacement information on each layer of the surface of the well junk;
And determining the curved surface of each layer of the surface of the underground junk according to the displacement information, and completing three-dimensional reconstruction based on the curved surface between each layer.
According to an aspect of the present disclosure, there is provided a multi-contact downhole junk imaging apparatus, comprising:
The acquisition unit acquires a plurality of displacement information generated by the underground junk on the sensor array;
and the imaging unit is used for imaging the underground junk based on the plurality of displacement information.
Preferably, the acquisition unit includes: a falling control unit and a detection unit;
the falling control unit is used for acquiring each falling depth of the displacement detection array and controlling the displacement detection array to fall according to the each falling depth;
The detection unit is used for respectively determining the displacement information generated on the surface of the underground junk corresponding to the displacement detection array under each falling depth; and determining all displacement information generated by the displacement detection array during the falling process as the plurality of displacement information.
Preferably, the drop control unit further includes: a braking unit;
The braking unit is used for generating a contact instruction by a displacement detection mechanism corresponding to a corresponding probe in the displacement detection array and determining the number of the contact instructions in each falling depth when the displacement information generated in each falling depth is located; and controlling whether the displacement detection array falls according to the number of contact instructions before each falling depth and after each falling depth.
Preferably, the braking unit, the judging unit and the determining unit;
the judging unit is used for judging the number of the contact instructions before each falling depth and after each falling depth, if the number of the contact instructions before each falling depth and after each falling depth is equal, the displacement detection array is controlled to stop falling, and the determining unit determines all displacement information before the falling depth as the plurality of displacement information; otherwise, controlling the displacement detection array to fall;
And/or the number of the groups of groups,
The judging unit is used for calculating the difference value of the contact instruction numbers before the falling depth and after each falling depth; if the difference value is smaller than or equal to a set value, controlling the displacement detection array to stop falling, and determining all the displacement information before the falling depth as the plurality of displacement information by the determining unit; otherwise, the displacement detection array is controlled to fall.
The imaging unit includes: and the three-dimensional reconstruction unit is used for carrying out three-dimensional reconstruction according to the plurality of displacement information and the corresponding surface layer positions of the underground junk, so as to complete imaging of the underground junk.
Preferably, the three-dimensional reconstruction unit includes: a layer displacement information determination unit and a drawing unit;
The displacement information is used for respectively determining the displacement information on each layer of the surface of the underground junk;
And the drawing unit is used for determining the curved surface of each layer of the surface of the underground junk according to the layer displacement information, and completing three-dimensional reconstruction based on the curved surface between each layer.
According to an aspect of the present disclosure, there is provided a multi-contact downhole junk imaging apparatus, comprising:
the displacement detection array, the control mechanism and the imaging mechanism;
the displacement detection array is respectively connected with the control mechanism and the imaging mechanism;
The control mechanism is used for controlling the displacement detection array to fall in the well according to the set falling depth;
the displacement detection array is used for detecting a plurality of displacement information generated on the surface of the underground junk;
the imaging mechanism is used for imaging the underground junk based on the displacement information.
Preferably, the displacement detection array comprises: a plurality of probes;
one end of each of the plurality of probes is provided with a displacement detection mechanism;
the displacement detection mechanism is used for detecting displacement change of each probe in the plurality of probes.
Preferably, the other end of each probe of the plurality of probes is a contact;
The contact is used for being stressed to generate deformation so as to drive the corresponding probe to generate displacement change.
Preferably, each probe has a tapered shape, and the tip of the taper is connected to the displacement detection mechanism.
Preferably, the displacement detection mechanism includes: an elastic member and a sensing element;
one end of the elastic piece is connected with one end of each probe of the plurality of probes, and the other end of the elastic piece is connected with the detection end of the sensing element;
The elastic piece is used for measuring displacement change of each probe in the plurality of probes;
the sensing element is used for converting the displacement change into an electric signal.
Preferably, the displacement detection array further comprises: a fixing mechanism, each probe of the plurality of probes being plugged with the fixing mechanism;
The fixing mechanism is used for preventing each probe from being offset along the directions of the two ends of the probe.
Preferably, the displacement detection array further comprises: a protective housing;
the protection shell is sleeved on the outer sides of the probes and/or the displacement detection mechanism and is used for protecting the probes and/or the displacement detection mechanism.
Preferably, the fixing mechanism is provided with a plurality of connecting holes, and the plurality of probes are respectively inserted into the fixing mechanism through the plurality of connecting holes.
Preferably, the displacement detection array further comprises: the analog-to-digital conversion circuit is connected;
The analog-to-digital conversion circuit is used for converting the analog quantity of the displacement change into a digital quantity.
Preferably, the control mechanism includes: a controller and an actuator; the output end of the controller is connected with the executing mechanism, and the executing mechanism is connected with the displacement detection array or the assembly or the measuring device;
The controller is used for controlling the displacement detection array or the assembly or the measuring device according to the set falling depth, so as to detect the plurality of displacement information generated on the surface of the underground falling object.
Preferably, the imaging mechanism is used for performing three-dimensional reconstruction according to the plurality of displacement information and the corresponding surface layer positions of the underground junk, so as to complete imaging of the underground junk;
Preferably, the imaging mechanism is used for respectively determining displacement information on each layer of the surface of the underground junk, determining a curved surface of each layer of the surface of the underground junk according to the displacement information, and completing three-dimensional reconstruction based on the curved surface between each layer.
According to an aspect of the present disclosure, there is provided an electronic apparatus including:
A processor;
A memory for storing processor-executable instructions;
wherein the processor is configured to: the above-described multi-contact downhole junk imaging method is performed.
According to an aspect of the present disclosure, there is provided a computer readable storage medium having stored thereon computer program instructions which, when executed by a processor, implement the above-described multi-contact downhole junk imaging method.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Other features and aspects of the present disclosure will become apparent from the following detailed description of exemplary embodiments, which proceeds with reference to the accompanying drawings. Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the technical aspects of the disclosure.
FIG. 1 illustrates a flow chart of a multi-contact downhole junk imaging method, in accordance with an embodiment of the disclosure;
FIG. 2 is a schematic plan view of a displacement detection array according to an embodiment of the present disclosure;
FIG. 3 is a schematic perspective view of a displacement detection array according to an embodiment of the present disclosure;
FIG. 4 illustrates a schematic diagram of a controller peripheral circuit according to an embodiment of the present disclosure;
FIG. 5 is a block diagram of an electronic device 800, shown in accordance with an exemplary embodiment;
fig. 6 is a block diagram illustrating an electronic device 1900 according to an example embodiment.
Description of the embodiments
Various exemplary embodiments, features and aspects of the disclosure will be described in detail below with reference to the drawings. In the drawings, like reference numbers indicate identical or functionally similar elements. Although various aspects of the embodiments are illustrated in the accompanying drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
The word "exemplary" is used herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.
The term "and/or" is herein merely an association relationship describing an associated object, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the term "at least one" herein means any one of a plurality or any combination of at least two of a plurality, for example, including at least one of A, B, C, may mean including any one or more elements selected from the group consisting of A, B and C.
Furthermore, numerous specific details are set forth in the following detailed description in order to provide a better understanding of the present disclosure. It will be understood by those skilled in the art that the present disclosure may be practiced without some of these specific details. In some instances, methods, means, elements, and circuits well known to those skilled in the art have not been described in detail in order not to obscure the present disclosure.
It will be appreciated that the above-mentioned method embodiments of the present disclosure may be combined with each other to form a combined embodiment without departing from the principle logic, and are limited to the description of the present disclosure.
In addition, the disclosure further provides a multi-contact downhole object imaging device, an electronic device, a computer readable storage medium and a program, and any of the above methods can be used to implement any of the multi-contact downhole object imaging methods provided in the disclosure, and corresponding technical schemes and descriptions and corresponding descriptions of method parts are omitted.
Fig. 1 illustrates a flow chart of a multi-contact downhole junk imaging method, as illustrated in fig. 1, according to an embodiment of the disclosure: comprising the following steps: step S101: acquiring a plurality of displacement information generated on the surface of the underground junk; step S102: imaging the downhole junk based on the plurality of displacement information. Wherein, for example, the downhole junk may be a fish-top shaped downhole junk. The present disclosure merely requires detection of multiple displacement information generated by the surface of a downhole drop to enable imaging of the downhole drop. The problems of high detection difficulty, high salvaging cost and long time consumption of the existing underground junk are solved.
Step S101: and acquiring a plurality of displacement information generated on the surface of the underground junk.
In the present disclosure, the method for acquiring a plurality of displacement information generated by a surface of a falling object under a well includes: setting each falling depth of the displacement detection array, and controlling the displacement detection array to fall according to the each falling depth; respectively determining displacement information generated by the displacement detection array on the surface of the corresponding underground junk at each falling depth; all displacement information generated by the displacement detection array during the falling process is determined as the plurality of displacement information.
For example, from the time the displacement detection array contacts the surface of the downhole junk, to the time the displacement detection array stops falling, the number of times the displacement detection array falls is 10; when falling down, the displacement information of the surface of the underground falling object at a certain height can be acquired; and the displacement information corresponding to all 10 layers of the surface of the underground junk is the plurality of displacement information.
The displacement detection array comprises: a plurality of probes; one end of each of the plurality of probes is provided with a displacement detection mechanism; the displacement detection mechanism is used for detecting displacement change of each probe in the plurality of probes.
Specifically, the plurality of probes of the displacement detection array are used for controlling the falling depth of the displacement detection array, the assembly or the measuring device according to the set falling depth, when a plurality of probes in the plurality of probes are contacted with the surface of the underground falling object, the probes contacted with the surface of the underground falling object can generate displacement change (a plurality of displacement information), so that the appearance detection of the surface of the underground falling object is realized, and the problem that the appearance detection of the existing underground falling object is difficult is solved.
In an embodiment of the present disclosure, the plurality of probes are arranged together at a set pitch to form a displacement detection array. For example, the number of the plurality of probes is 200, and 200 of the plurality of probes are arranged together at a set pitch. One end of each probe is a detection end, the other end of each probe is provided with a displacement detection mechanism, each probe can independently detect displacement generated after contacting the surface of the underground junk, and the shape of the displacement detection array can be round, square or other shapes.
For example, setting the drop depth of the displacement detection array to 20cm each time, and dropping the displacement detection array according to the drop depth of 20cm each time; when the plurality of probes do not contact the surface of the underground junk, the plurality of probes cannot generate displacement change; when a plurality of probes contact the surface of the underground falling object, the contacts of the probes are stressed to deform, the contacts of the probes drive the corresponding probes to generate displacement change, and the probes contacted with the surface of the underground falling object generate displacement change (a plurality of displacement information), so that the shape detection of the surface of the underground falling object is realized. The surface of the underground object is arranged at the bottom of the well, after the displacement detection array falls to the bottom of the well, the displacement detection array is completely covered on the surface of the underground object, the surface of the underground object supports the contacts of a plurality of probes, the contacts of the probes shrink upwards, and the contacts of the plurality of shrunk probes form the surface shape of the surface of the underground object.
In the present disclosure, each probe has a tapered shape, and the tip of the taper is connected to the displacement detection mechanism. The displacement detection mechanism includes: an elastic member and a sensing element; one end of the elastic piece is connected with one end of each probe of the plurality of probes, and the other end of the elastic piece is connected with the detection end of the sensing element; the elastic piece is used for measuring displacement change of each probe in the plurality of probes and maintaining the probe to be in contact with the surface of the underground falling object; the sensing element is used for converting the displacement change into an electric signal.
In the present disclosure, when the contact points of several probes in the plurality of probes are in contact with the surface of the downhole drop, the contact points of the probes are stressed to generate deformation, the contact points of the probes drive the corresponding probes to generate displacement variation, the probes in contact with the surface of the downhole drop generate displacement variation (a plurality of displacement information), the elastic member contracts to generate deformation, the elastic member applies force to the probes in contact with the surface of the downhole drop and generating the displacement variation, and the contact points of the probes are in full contact with the surface of the downhole drop. When the displacement detection array is lifted, the elastic piece is restored to deformation, and the probe which is contacted with the surface of the underground falling object and generates the displacement change is restored to the previous state.
In embodiments of the present disclosure, the sensing element may select a displacement sensor, such as: sliding resistance sensors or magnetic induction sensors. One end of the elastic piece is connected with one end of each probe of the plurality of probes, and the other end of the elastic piece is connected with the detection end of the displacement sensor; the displacement sensor is used for converting the displacement change into an electric signal.
In an embodiment of the disclosure, the elastic member is a spring, and the spring is sleeved at one end of each of the plurality of probes. In particular, the spring is sleeved on the conical tip. The section of one side of the spring sleeve is connected with the sensing element or in contact connection, the contact of the probe drives the corresponding probe to generate displacement change, the displacement change is compressed by the spring and transmitted to the sensing element, and the sensing element converts the displacement change into an electric signal.
The displacement detection array provided by the present disclosure further includes: a fixing mechanism, each probe of the plurality of probes being plugged with the fixing mechanism; the fixing mechanism is used for preventing each probe from being offset along the directions of the two ends of the probe.
In the present disclosure, the displacement detection array further includes: a protective housing; the protection shell is sleeved on the outer sides of the probes and/or the displacement detection mechanism and is used for protecting the probes 1 and/or the displacement detection mechanism.
In the present disclosure, the fixing mechanism has a plurality of connection holes through which the plurality of probes 1 are respectively inserted with the fixing mechanism.
The displacement detection array provided by the present disclosure further includes: an analog-to-digital conversion circuit; the displacement detection mechanism is connected with the analog-to-digital conversion circuit; the analog-to-digital conversion circuit is used for converting the analog quantity of the displacement change into a digital quantity. The analog-to-digital conversion circuit is an AD conversion circuit, and the analog-to-digital conversion circuit converts the analog quantity of the displacement change into a digital quantity. Specifically, the analog-to-digital conversion circuit is connected with the output end of the sensing element and is used for converting an analog electrical signal output by the sensing element into a digital electrical signal. The AD conversion circuit is a conventional circuit which is familiar to those skilled in the art, and will not be described in detail here.
Specifically, when the displacement detection array is completely covered on the surface of the downhole well, the surface of the downhole well supports the contacts of several probes 1, and the contacts of the probes shrink upward, the contacts of the plurality of shrunk probes form the surface shape of the surface of the downhole well. The problems of high detection difficulty of the surface of the existing underground junk, high junk salvaging cost and long time consumption are solved.
In embodiments of the present disclosure or other possible embodiments, the terminal device may be one or more of a logging-specific surface measurement system, a User Equipment (UE), a mobile device, a User terminal, a cellular phone, a cordless phone, a Personal digital assistant (Personal DIGITAL ASSISTANT, PDA), a handheld device, a computing device, an in-vehicle device, and a wearable device.
In an embodiment of the disclosure, the displacement detection array is connected with the terminal device through a communication circuit; the communication circuit is configured to transmit the plurality of displacement changes to the terminal device.
In embodiments of the present disclosure or other possible embodiments, the communication circuit may select an existing communication circuit may select a wireless communication module, for example: one or more of a gprs module, a Bluetooth module, an infrared module and an FM module.
Above, we assume that the number of times the displacement detection array falls is 10 from the time the displacement detection array contacts the surface of the well junk until the displacement detection array stops falling. In the following we describe how to determine whether the displacement detection array continues to fall.
In the present disclosure, the method for acquiring a plurality of displacement information generated by a surface of a falling object in a well further includes: if the displacement information generated at each falling depth is the displacement detection mechanism corresponding to the corresponding probe in the displacement detection array generates a contact instruction and determines the number of the contact instructions at each falling depth; and controlling whether the displacement detection array falls according to the number of contact instructions before each falling depth and after each falling depth.
Specifically, if the displacement information generated at each drop depth is found, some of the probes in the displacement detection array are already in contact with the surface of the well junk, and the displacement detection mechanisms corresponding to the corresponding probes generate contact instructions. Specifically, after some probes in the displacement detection array are in contact with the surface of the underground junk, the displacement detection mechanism corresponding to the probes generates a contact instruction, wherein the contact instruction can also be called an on instruction, and the value of the contact instruction is configured to be 1; a displacement detection mechanism corresponding to a probe not in contact with the surface of the downhole drop generates a non-contact command, the value of which is configured to be 0. More specifically, the number of contact instructions per drop depth is determined by determining the number of displacement detection array occurrences 1.
When the displacement detection array continuously falls, more probes are contacted with the surface of the underground falling object; and when the displacement detection array is completely contacted with the surface of the underground falling object, continuing to fall the displacement detection array, and stopping falling the displacement detection array if no new contact instruction is generated or the number of the contact instructions is small, considering that a plurality of displacement information generated by the surface of the underground falling object is finished.
In the present disclosure, the method for controlling whether the displacement detection array drops according to the number of contact instructions before each drop depth and after each drop depth includes: if the number of the contact instructions before each falling depth and after each falling depth is equal, controlling the displacement detection array to stop falling, and determining all layer position information before the falling depth as the plurality of displacement information; otherwise, controlling the displacement detection array to fall; and/or calculating the difference value of the contact instruction number before each falling depth and after each falling depth; if the difference value is smaller than or equal to a set value, controlling the displacement detection array to stop falling, and determining all displacement information before the falling depth as the plurality of displacement information; otherwise, the displacement detection array is controlled to fall. Wherein, the person skilled in the art can set the difference value according to the need, if the difference value is any number between 0 and 5, when the difference value is 0, the number of the contact instructions before each falling depth and after each falling depth is equal. But the difference should not be greater than 1/10 of the total number of the plurality of probes. Step S102: imaging the downhole junk based on the plurality of displacement information.
In the present disclosure, the method of imaging the downhole junk based on the plurality of displacement information includes: and carrying out three-dimensional reconstruction according to the plurality of displacement information and the corresponding surface layer position of the underground junk, and completing the surface shape imaging of the underground junk.
In the present disclosure, the method for three-dimensional reconstruction according to the plurality of displacement information and the corresponding surface layer of the down-hole junk includes: determining displacement information on each layer of the surface of the well junk; and determining the curved surface of each layer of the surface of the underground junk according to the displacement information, and completing three-dimensional reconstruction based on the curved surface between each layer.
In the disclosure, as a plurality of points are arranged on a layer surface corresponding to one height of the surface of the underground junk, the plurality of points can obtain a corresponding curved surface in a fitting manner; each layer of curved surface is spliced or stacked along one direction to complete three-dimensional reconstruction of the down-hole junk. More specifically, the plurality of displacement information is three-dimensional data of space, and the three-dimensional reconstruction of the surface shape of the underground junk can be completed according to the existing three-dimensional data reconstruction method. The layer position information on each layer can be used as a tomographic image only with edge information, and the three-dimensional reconstruction of the surface shape of the underground junk can be constructed through a plurality of displacement information corresponding to a plurality of displacement information composed of all the layer position information.
The execution subject of the multi-contact downhole junk imaging method may be an image processing apparatus, for example, the multi-contact downhole junk imaging method may be executed by a terminal device or a server or other processing device, wherein the terminal device may be a User Equipment (UE), a mobile device, a User terminal, a cellular phone, a cordless phone, a Personal digital assistant (Personal DIGITAL ASSISTANT, PDA), a handheld device, a computing device, a vehicle-mounted device, a wearable device, or the like. In some possible implementations, the multi-contact downhole junk imaging method may be implemented by way of a processor invoking computer readable instructions stored in a memory. "
It will be appreciated by those skilled in the art that in the above-described method of the specific embodiments, the written order of steps is not meant to imply a strict order of execution but rather should be construed according to the function and possibly inherent logic of the steps.
According to an aspect of the present disclosure, there is provided a multi-contact downhole junk imaging apparatus, comprising: the acquisition unit acquires a plurality of displacement information generated by the underground junk on the sensor array; and the imaging unit is used for imaging the underground junk based on the plurality of displacement information. Wherein, for example, the downhole junk may be a fish-top shaped downhole junk. The present disclosure merely requires detection of multiple displacement information generated by the surface of a downhole drop to enable imaging of the downhole drop. The problems of high detection difficulty, high salvaging cost and long time consumption of the existing underground junk are solved.
In the present disclosure, the acquisition unit includes: a falling control unit and a detection unit; the falling control unit is used for acquiring each falling depth of the displacement detection array and controlling the displacement detection array to fall according to the each falling depth; the detection unit is used for respectively determining the displacement information generated on the surface of the underground junk corresponding to the displacement detection array under each falling depth; and determining all displacement information generated by the displacement detection array during the falling process as the plurality of displacement information.
In the present disclosure, the drop control unit further includes: a braking unit; the braking unit is used for generating a contact instruction and determining the number of the contact instructions at each falling depth by a corresponding displacement detection mechanism in the displacement detection array when the displacement information is generated at each falling depth; and controlling whether the displacement detection array falls according to the number of contact instructions before each falling depth and after each falling depth.
In the present disclosure, the braking unit, the judging unit and the determining unit; the judging unit is used for judging the number of the contact instructions before each falling depth and after each falling depth, if the number of the contact instructions before each falling depth and after each falling depth is equal, the displacement detection array is controlled not to fall, and the determining unit determines all displacement information before the falling depth as the plurality of displacement information; otherwise, controlling the displacement detection array to fall; and/or the judging unit is used for calculating the difference value of the contact instruction number before the falling depth and after each falling depth; if the difference value is smaller than or equal to a set value, the displacement detection array is controlled not to fall, and the determining unit determines all layer position information before the falling depth as the plurality of displacement information; otherwise, the displacement detection array is controlled to fall.
The imaging unit includes: and the three-dimensional reconstruction unit is used for carrying out three-dimensional reconstruction according to the plurality of displacement information and the corresponding surface layer positions of the underground junk, so as to complete imaging of the underground junk.
In the present disclosure, the three-dimensional reconstruction unit includes: a layer displacement information determination unit and a drawing unit; the displacement information is used for respectively determining the displacement information on each layer of the surface of the underground junk; and the drawing unit is used for determining the curved surface of each layer of the surface of the underground junk according to the layer displacement information, and completing three-dimensional reconstruction based on the curved surface between each layer.
In some embodiments, functions or modules included in an apparatus provided by the embodiments of the present disclosure may be used to perform a method described in the foregoing method embodiments, and specific implementations thereof may refer to descriptions of the foregoing method embodiments, which are not repeated herein for brevity.
According to an aspect of the present disclosure, there is provided a multi-contact downhole junk imaging apparatus, comprising: the displacement detection array, the control mechanism and the imaging mechanism; the displacement detection array is respectively connected with the control mechanism and the imaging mechanism; the control mechanism is used for controlling the displacement detection array to fall in the well according to the set falling depth; the displacement detection array is used for detecting a plurality of displacement information generated on the surface of the underground junk; the imaging mechanism is used for imaging the underground junk based on the displacement information. Wherein, for example, the downhole junk may be a fish-top shaped downhole junk. The present disclosure merely requires detection of multiple displacement information generated by the surface of a downhole drop to enable imaging of the downhole drop. The problems of high detection difficulty, high salvaging cost and long time consumption of the existing underground junk are solved.
FIG. 2 is a schematic plan view of a displacement detection array according to an embodiment of the present disclosure; fig. 3 is a schematic perspective view of a displacement detection array according to an embodiment of the present disclosure. In fig. 2 and 3, the displacement detection array includes: a plurality of probes; one end of each of the plurality of probes is provided with a displacement detection mechanism; the displacement detection mechanism is used for detecting displacement change of each probe in the plurality of probes. That is, each of the plurality of probes may contract to produce a change in displacement. The plurality of probes 1 are arranged together at a set pitch to form a displacement detection array.
For example, the number of the plurality of probes 1 is 50, and 50 of the plurality of probes 1 are arranged together at a set pitch (e.g., 5 mm). One end of each probe is a detection end, the other end of each probe is provided with a displacement detection mechanism 2, each probe can independently detect the displacement generated after contacting the surface of an object to be imaged (namely, a well junk), and the shape of the displacement detection array can be round, square or other shapes.
In an embodiment of the disclosure, the other end of each of the plurality of probes is a contact; the contact is used for being stressed to generate deformation so as to drive the corresponding probe to generate displacement change. When the displacement detection array falls down, after the contacts of a plurality of probes 1 are contacted with the surface of an object to be imaged, the contacts of the probes are stressed to deform, the contacts of the probes drive the corresponding probes to generate displacement change, and the probes contacted with the surface of the object to be imaged generate displacement change (a plurality of displacement information), so that the shape detection of the object to be imaged underground is realized. When the object to be imaged is at the bottom of the well, the displacement detection array falls down to the bottom of the well, the displacement detection array is completely covered on the surface of the object to be imaged, the surface of the object to be imaged supports the contacts of a plurality of probes 1, the contacts of the probes shrink upwards, and at the moment, the contacts of the plurality of shrunk probes form the surface shape of the object to be imaged.
In the embodiment of the present disclosure, each probe has a tapered shape, and the tip of the taper is connected to the displacement detection mechanism 2.
In the embodiment of the present disclosure, the displacement detection mechanism 2 includes: an elastic member and a sensing element; one end of the elastic piece is connected with one end of each probe of the plurality of probes 1, and the other end of the elastic piece is connected with the detection end of the sensing element; the elastic member is used for measuring displacement change of each probe in the plurality of probes 1 and maintaining contact between the probe and the surface of an object to be imaged; the sensing element is used for converting the displacement change into an electric signal.
In the embodiment of the disclosure, one end of the elastic member is connected with one end of each probe of the plurality of probes 1, and the other end of the elastic member is connected with the detection end of the sensing element; the elastic member is used for measuring displacement change of each probe in the plurality of probes 1 and maintaining contact between the probe and the surface of an object to be imaged; the sensing element is used for converting the displacement change into an electric signal.
In embodiments of the present disclosure, the sensing element may select a displacement sensor, such as: sliding resistance sensors or magnetic induction sensors. One end of the elastic piece is connected with one end of each probe of the plurality of probes 1, and the other end of the elastic piece is connected with the detection end of the displacement sensor; the displacement sensor is used for converting the displacement change into an electric signal.
In an embodiment of the present disclosure, the elastic member is a spring, and the spring is sleeved at one end of each of the plurality of probes 1. In particular, the spring is sleeved on the conical tip. The section of one side of the spring sleeve is connected with the sensing element or in contact connection, the contact of the probe drives the corresponding probe to generate displacement change, the displacement change is compressed by the spring and transmitted to the sensing element, and the sensing element converts the displacement change into an electric signal.
In an embodiment of the present disclosure, the displacement detection array further comprises: a fixing mechanism 4, each probe of the plurality of probes is spliced with the fixing mechanism 4; the fixing mechanism 4 is used for preventing each probe from being offset along the directions of two ends of the probe.
In an embodiment of the disclosure, the displacement detection array further includes: a protective case 5; the protection shell 5 is sleeved outside the probes 1 and/or the displacement detection mechanism 2 and is used for protecting the probes 1 and/or the displacement detection mechanism 2.
In the embodiment of the present disclosure, the fixing mechanism 4 has a plurality of connection holes, and the plurality of probes 1 are respectively inserted into the fixing mechanism 4 through the plurality of connection holes.
In the embodiment of the present disclosure, the positions of the plurality of connection holes may be designed according to the set pitch, or the positions of the plurality of connection holes may be designed according to the reference pitch. For example, the reference pitch is 1mm, that is, the distance between the centers of the connection holes of 2 probes is 1mm, and the set pitch may be a multiple of the reference pitch, for example: 2mm, 3mm, etc.
In an embodiment of the disclosure, the displacement detection array further includes: an analog-to-digital conversion circuit 6; the displacement detection mechanism 2 is connected with the analog-to-digital conversion circuit 6; the analog-to-digital conversion circuit 6 is configured to convert the analog quantity of the displacement change into a digital quantity. The analog-to-digital conversion circuit 6 is an AD conversion circuit, and the analog-to-digital conversion circuit 6 converts the analog quantity of the displacement change into a digital quantity. Specifically, the analog-to-digital conversion circuit 6 is connected to the output end of the sensing element, and is used for converting the analog electrical signal output by the sensing element into a digital electrical signal. The AD conversion circuit is a conventional circuit which is familiar to those skilled in the art, and will not be described in detail here.
In the embodiment of the present disclosure, the displacement detection mechanism 2 of each of the plurality of probes 1 is connected to a terminal device; the probes 1 are used for detecting a plurality of displacement changes generated on the surface of an object to be imaged; the terminal equipment is used for imaging the surface of the object to be imaged according to the displacement changes.
Specifically, when the displacement detection array is completely covered on the surface of the object to be imaged, the surface of the object to be imaged supports the contacts of several probes 1, and the contacts of the probes shrink upward, the contacts of the plurality of shrunk probes form the surface shape of the object to be imaged.
In embodiments of the present disclosure or other possible embodiments, the terminal device may be one or more of a logging-specific surface measurement system, a User Equipment (UE), a mobile device, a User terminal, a cellular phone, a cordless phone, a Personal digital assistant (Personal DIGITAL ASSISTANT, PDA), a handheld device, a computing device, an in-vehicle device, and a wearable device.
In an embodiment of the present disclosure, the control mechanism includes: a controller and an actuator; the output end of the controller is connected with the executing mechanism, and the executing mechanism is connected with the displacement detection array or the assembly or the measuring device; the controller is used for controlling the displacement detection array or the assembly or the measuring device according to the set falling depth, so as to detect the plurality of displacement information generated on the surface of the underground falling object.
In an embodiment of the disclosure or other possible embodiments, the actuator may be a stepper motor, an output end of the stepper motor is connected with a wire barrel (wire rod) through a coupling, the wire barrel is wound with a connecting wire, and the connecting wire is connected with the displacement detection array or the assembly or the measurement device; the controller is used for controlling the actuating mechanism to rotate according to the set falling depth (for example, the set falling depth is 1 meter, then the actuating mechanism rotates for 2 circles), and the actuating mechanism falls the displacement detection array or the assembly or the measuring device according to the set falling depth so as to detect a plurality of displacement changes generated on the surface of the underground falling object.
The controller further comprises: a memory; the memory is also connected with the terminal equipment and used for storing displacement information corresponding to the plurality of displacement changes and sending the displacement information to the terminal equipment.
In the present disclosure, the controller may use an Application Specific Integrated Circuit (ASIC), a Digital Signal Processor (DSP), a Digital Signal Processing Device (DSPD), a Programmable Logic Device (PLD), a Field Programmable Gate Array (FPGA), a controller, a microcontroller, a microprocessor, or other electronic components.
In the present disclosure, the imaging mechanism is configured to perform three-dimensional reconstruction according to the plurality of displacement information and the corresponding surface layer of the underground junk, so as to complete imaging of the underground junk. Specifically, in the present disclosure, the imaging mechanism is configured to determine displacement information on each layer of the surface of the downhole junk, and determine a curved surface of each layer of the surface of the downhole junk from the displacement information, and perform three-dimensional reconstruction based on the curved surfaces between each layer. See in particular the description of the multi-contact downhole junk imaging method.
Fig. 4 shows a schematic diagram of a controller peripheral circuit according to an embodiment of the present disclosure. The controller may use a microprocessor, in fig. 3, the controller is typically a single-chip microcomputer or a PLC controller, but the controller of the present disclosure is preferably a single-chip microcomputer; because controllers such as a PLC (programmable logic controller) are generally expensive, the price is generally between thousands and tens of thousands, but the price of a singlechip is between a few wool and a few money, the controllers of the present disclosure are preferably singlechips. Such as: and the singlechip STC89751. The controller is a single-chip CPU1 (namely, a single-chip microcomputer STC 89751), the single-chip CPU1 is provided with 22 pins (pins 1-22), the 9 pins of the single-chip CPU1 are connected with a power supply VCC through a filter capacitor C1, and the 9 pins of the single-chip CPU1 are also connected with a ground GND through a first resistor R1; the pins 18 and 19 of the singlechip CPU1 are respectively connected with two ends of the crystal oscillator Y1, and the two ends of the crystal oscillator Y1 are also respectively connected with the ground GND through a second capacitor C2 and a third capacitor C3; the 20 pins of the singlechip CPU1 are connected with the ground GND; the pin 40 of the singlechip CPU1 is connected with a power supply VCC.
Other pins of the single-chip microcomputer CPU1 can be respectively connected with output ends of the displacement detection mechanisms 2 corresponding to the probes 1 and connected with terminal equipment. Specifically, other pins of the single-chip microcomputer CPU1 can be expanded by adopting a time-sharing multiplexing method.
The disclosed embodiments also provide a computer readable storage medium having stored thereon computer program instructions which, when executed by a processor, implement the above-described method. The computer readable storage medium may be a non-volatile computer readable storage medium.
The embodiment of the disclosure also provides an electronic device, which comprises: a processor; a memory for storing processor-executable instructions; wherein the processor is configured as the method described above. The electronic device may be provided as a terminal, server or other form of device.
Fig. 5 is a block diagram of an electronic device 800, according to an example embodiment. For example, electronic device 800 may be a mobile phone, computer, digital broadcast terminal, messaging device, game console, tablet device, medical device, exercise device, personal digital assistant, or the like.
Referring to fig. 5, an electronic device 800 may include one or more of the following components: a processing component 802, a memory 804, a power component 806, a multimedia component 808, an audio component 810, an input/output (I/O) interface 812, a sensor component 814, and a communication component 816.
The processing component 802 generally controls overall operation of the electronic device 800, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 802 may include one or more processors 820 to execute instructions to perform all or part of the steps of the methods described above. Further, the processing component 802 can include one or more modules that facilitate interactions between the processing component 802 and other components. For example, the processing component 802 can include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.
The memory 804 is configured to store various types of data to support operations at the electronic device 800. Examples of such data include instructions for any application or method operating on the electronic device 800, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 804 may be implemented by any type or combination of volatile or nonvolatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.
The power supply component 806 provides power to the various components of the electronic device 800. The power components 806 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the electronic device 800.
The multimedia component 808 includes a screen between the electronic device 800 and the user that provides an output interface. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may sense not only the boundary of a touch or slide action, but also the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front camera and/or a rear camera. When the electronic device 800 is in an operational mode, such as a shooting mode or a video mode, the front camera and/or the rear camera may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or have focal length and optical zoom capabilities.
The audio component 810 is configured to output and/or input audio signals. For example, the audio component 810 includes a Microphone (MIC) configured to receive external audio signals when the electronic device 800 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may be further stored in the memory 804 or transmitted via the communication component 816. In some embodiments, audio component 810 further includes a speaker for outputting audio signals.
The I/O interface 812 provides an interface between the processing component 802 and peripheral interface modules, which may be a keyboard, click wheel, buttons, etc. These buttons may include, but are not limited to: homepage button, volume button, start button, and lock button.
The sensor assembly 814 includes one or more sensors for providing status assessment of various aspects of the electronic device 800. For example, the sensor assembly 814 may detect an on/off state of the electronic device 800, a relative positioning of the components, such as a display and keypad of the electronic device 800, the sensor assembly 814 may also detect a change in position of the electronic device 800 or a component of the electronic device 800, the presence or absence of a user's contact with the electronic device 800, an orientation or acceleration/deceleration of the electronic device 800, and a change in temperature of the electronic device 800. The sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an acceleration sensor, a gyroscopic sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 816 is configured to facilitate communication between the electronic device 800 and other devices, either wired or wireless. The electronic device 800 may access a wireless network based on a communication standard, such as WiFi,2G, or 3G, or a combination thereof. In one exemplary embodiment, the communication component 816 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, the communication component 816 further includes a Near Field Communication (NFC) module to facilitate short range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, ultra Wideband (UWB) technology, bluetooth (BT) technology, and other technologies.
In an exemplary embodiment, the electronic device 800 may be implemented by one or more Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), digital Signal Processing Devices (DSPDs), programmable Logic Devices (PLDs), field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic elements for executing the methods described above.
In an exemplary embodiment, a non-transitory computer readable storage medium is also provided, such as memory 804 including computer program instructions executable by processor 820 of electronic device 800 to perform the above-described methods.
Fig. 6 is a block diagram illustrating an electronic device 1900 according to an example embodiment. For example, electronic device 1900 may be provided as a server. Referring to FIG. 6, electronic device 1900 includes a processing component 1922 that further includes one or more processors and memory resources represented by memory 1932 for storing instructions, such as application programs, that can be executed by processing component 1922. The application programs stored in memory 1932 may include one or more modules each corresponding to a set of instructions. Further, processing component 1922 is configured to execute instructions to perform the methods described above.
The electronic device 1900 may also include a power component 1926 configured to perform power management of the electronic device 1900, a wired or wireless network interface 1950 configured to connect the electronic device 1900 to a network, and an input/output (I/O) interface 1958. The electronic device 1900 may operate based on an operating system stored in memory 1932, such as Windows Server, mac OS XTM, unixTM, linuxTM, freeBSDTM, or the like.
In an exemplary embodiment, a non-transitory computer readable storage medium is also provided, such as memory 1932, including computer program instructions executable by processing component 1922 of electronic device 1900 to perform the methods described above.
The present disclosure may be a system, method, and/or computer program product. The computer program product may include a computer readable storage medium having computer readable program instructions embodied thereon for causing a processor to implement aspects of the present disclosure.
The computer readable storage medium may be a tangible device that can hold and store instructions for use by an instruction execution device. The computer readable storage medium may be, for example, but not limited to, an electronic storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination of the foregoing. More specific examples (a non-exhaustive list) of the computer-readable storage medium would include the following: portable computer disks, hard disks, random Access Memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), static Random Access Memory (SRAM), portable compact disk read-only memory (CD-ROM), digital Versatile Disks (DVD), memory sticks, floppy disks, mechanical coding devices, punch cards or in-groove structures such as punch cards or grooves having instructions stored thereon, and any suitable combination of the foregoing. Computer-readable storage media, as used herein, are not to be construed as transitory signals per se, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through waveguides or other transmission media (e.g., optical pulses through fiber optic cables), or electrical signals transmitted through wires.
The computer readable program instructions described herein may be downloaded from a computer readable storage medium to a respective computing/processing device or to an external computer or external storage device over a network, such as the internet, a local area network, a wide area network, and/or a wireless network. The network may include copper transmission cables, fiber optic transmissions, wireless transmissions, routers, firewalls, switches, gateway computers and/or edge servers. The network interface card or network interface in each computing/processing device receives computer readable program instructions from the network and forwards the computer readable program instructions for storage in a computer readable storage medium in the respective computing/processing device.
The computer program instructions for performing the operations of the present disclosure may be assembly instructions, instruction Set Architecture (ISA) instructions, machine-related instructions, microcode, firmware instructions, state setting data, or source or object code written in any combination of one or more programming languages, including an object oriented programming language such as SMALLTALK, C ++ or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The computer readable program instructions may be executed entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computer (for example, through the Internet using an Internet service provider). In some embodiments, aspects of the present disclosure are implemented by personalizing electronic circuitry, such as programmable logic circuitry, field Programmable Gate Arrays (FPGAs), or Programmable Logic Arrays (PLAs), with state information of computer readable program instructions, which can execute the computer readable program instructions.
Various aspects of the present disclosure are described herein with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the disclosure. It will be understood that each block of the flowchart illustrations and/or block diagrams, and combinations of blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer-readable program instructions.
These computer readable program instructions may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions/acts specified in the flowchart and/or block diagram block or blocks. These computer readable program instructions may also be stored in a computer readable storage medium that can direct a computer, programmable data processing apparatus, and/or other devices to function in a particular manner, such that the computer readable medium having the instructions stored therein includes an article of manufacture including instructions which implement the function/act specified in the flowchart and/or block diagram block or blocks.
The computer readable program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other devices to cause a series of operational steps to be performed on the computer, other programmable apparatus or other devices to produce a computer implemented process such that the instructions which execute on the computer, other programmable apparatus or other devices implement the functions/acts specified in the flowchart and/or block diagram block or blocks.
The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of instructions, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
The foregoing description of the embodiments of the present disclosure has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described. The terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or the technical improvement of the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

Claims (8)

1. A method of multi-contact downhole junk imaging, comprising:
Acquiring a plurality of displacement information generated on the surface of the underground junk; the method for acquiring the plurality of displacement information generated on the surface of the underground junk comprises the following steps: when displacement detection information is generated by the displacement detection array at each falling depth, a displacement detection mechanism corresponding to a corresponding probe in the displacement detection array generates a contact instruction and the number of the contact instructions at each falling depth is determined; after the corresponding probes in the displacement detection array are contacted with the surface of the underground junk, the corresponding displacement detection mechanisms of the corresponding probes generate contact instructions; controlling whether the displacement detection array falls according to the number of contact instructions before each falling and after each falling; the method for controlling whether the displacement detection array falls according to the number of contact instructions before each falling depth and after each falling depth comprises the following steps: calculating the difference value of the contact instruction number before each falling and after each falling of the displacement detection array; if the difference value is smaller than or equal to a set value, controlling the displacement detection array to stop falling, and determining all displacement information before the falling depth as the plurality of displacement information; otherwise, controlling the displacement detection array to fall;
Wherein the displacement detection array comprises: a plurality of probes (1); the springs are sleeved at one end of each probe in the plurality of probes (1) to control the contact points of the probes to shrink upwards, so that the contact instruction is generated; when the displacement detection array is lifted, the spring is restored to deform, and the probe which is contacted with the surface of the underground falling object and generates the displacement change is restored to the previous state;
Imaging the downhole junk based on a plurality of displacement information formed by the displacement detection array fully covering the surface of the downhole junk.
2. The method of claim 1, wherein before the displacement detection mechanism corresponding to the corresponding probe in the displacement detection array generates the contact command and determines the number of contact commands per drop depth when the displacement detection array generates the displacement information per drop depth, further comprising:
Setting each falling depth of the displacement detection array, and controlling the displacement detection array to fall according to the each falling depth;
Respectively determining displacement information generated by the displacement detection array on the surface of the corresponding underground junk at each falling depth;
All displacement information generated by the displacement detection array during the falling process is determined as the plurality of displacement information.
3. The method of multi-contact downhole imaging of any of claims 1-2, wherein the method of imaging the downhole based on the plurality of displacement information comprises:
And carrying out three-dimensional reconstruction according to the plurality of displacement information and the corresponding surface layer position of the underground junk, and completing imaging of the underground junk.
4. A multi-contact downhole junk imaging method according to claim 3, wherein the method for three-dimensional reconstruction from the plurality of displacement information and their corresponding surface horizons of the downhole junk comprises:
Determining displacement information on each layer of the surface of the well junk;
And determining the curved surface of each layer of the surface of the underground junk according to the displacement information, and completing three-dimensional reconstruction based on the curved surface between each layer.
5. A multi-contact downhole junk imaging apparatus, comprising:
The acquisition unit acquires a plurality of displacement information generated by the underground falling object surface on the displacement detection array; wherein the acquisition unit includes: a braking unit; the braking unit is used for generating a contact instruction and determining the number of the contact instructions under each falling depth when the displacement detection mechanism in the displacement detection array generates displacement information under each falling depth; and controlling whether the displacement detection array falls according to the number of contact instructions before each falling depth and after each falling depth; after the corresponding probes in the displacement detection array are contacted with the surface of the underground junk, the corresponding displacement detection mechanisms of the corresponding probes generate contact instructions; wherein, the braking unit includes: a judging unit and a determining unit; the judging unit is used for judging the number of the contact instructions before each falling depth and after each falling depth, if the number of the contact instructions before each falling depth and after each falling depth is equal, the displacement detection array is controlled not to fall, and the determining unit determines all displacement information before the falling depth as the plurality of displacement information; otherwise, controlling the displacement detection array to fall; wherein the displacement detection array comprises: a plurality of probes (1); the springs are sleeved at one end of each probe in the plurality of probes (1) to control the contact points of the probes to shrink upwards, so that the contact instruction is generated; when the displacement detection array is lifted, the spring is restored to deform, and the probe which is contacted with the surface of the underground falling object and generates the displacement change is restored to the previous state;
and the imaging unit is used for imaging the underground junk based on a plurality of displacement information formed by the displacement detection array completely covering the surface of the underground junk.
6. A multi-contact downhole junk imaging apparatus, comprising: the displacement detection array, the control mechanism and the imaging mechanism;
the displacement detection array is respectively connected with the control mechanism and the imaging mechanism;
The control mechanism is used for controlling the displacement detection array to fall in the well according to the set falling depth; when displacement detection information is generated under each falling depth of the displacement detection array, a displacement detection mechanism corresponding to a corresponding probe in the displacement detection array generates a contact instruction and the number of the contact instructions under each falling depth is determined; controlling whether the displacement detection array falls according to the number of contact instructions before each falling and after each falling; after the corresponding probes in the displacement detection array are contacted with the surface of the underground junk, the corresponding displacement detection mechanisms of the corresponding probes generate contact instructions; wherein, the controlling whether the displacement detection array falls according to the contact instruction number before each falling depth and after each falling depth comprises: calculating the difference value of the contact instruction number before each falling and after each falling of the displacement detection array; if the difference value is smaller than or equal to a set value, controlling the displacement detection array to stop falling, and determining all displacement information before the falling depth as a plurality of displacement information; otherwise, controlling the displacement detection array to fall;
the displacement detection array is used for detecting the plurality of displacement information generated on the surface of the underground junk; wherein the displacement detection array comprises: a plurality of probes (1); the springs are sleeved at one end of each probe in the plurality of probes (1) to control the contact points of the probes to shrink upwards, so that the contact instruction is generated; when the displacement detection array is lifted, the spring is restored to deform, and the probe which is contacted with the surface of the underground falling object and generates the displacement change is restored to the previous state;
the imaging mechanism is used for imaging the underground junk based on a plurality of displacement information formed by the displacement detection array completely covering the surface of the underground junk.
7. An electronic device, comprising:
A processor;
A memory for storing processor-executable instructions;
Wherein the processor is configured to invoke the instructions stored by the memory to perform the multi-contact downhole junk imaging method of any of claims 1-4.
8. A computer readable storage medium having stored thereon computer program instructions, which when executed by a processor, implement the multi-contact downhole junk imaging method of any one of claims 1 to 4.
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