CN108868742B - Method, device and storage medium for determining source of pipe type underground falling object - Google Patents
Method, device and storage medium for determining source of pipe type underground falling object Download PDFInfo
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
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Abstract
The invention discloses a method, a device and a storage medium for determining the source of a pipe-type underground falling object, and belongs to the technical field of petroleum industry. The method comprises the following steps: the method comprises the steps of obtaining the radius of an oil pipe in a target oil well and the radius of a casing in the target oil well, determining the radius of a projection arc line of the arc surface of a pipe type underground falling object in the target oil well, wherein the pipe type underground falling object refers to oil pipe fragments falling from the oil pipe in the target oil well or casing fragments falling from the casing, and determining the source of the pipe type underground falling object based on the radius of the oil pipe in the target oil well, the radius of the casing in the target oil well and the radius of the projection arc line. That is, the invention can compare the radius of the projection arc of the cambered surface of the tube-type underground falling object with the radius of the oil pipe and the casing pipe in the target oil well so as to determine the source of the tube-type underground falling object, and the invention does not need to depend on the previous operation data of the oil well, thereby increasing the reliability of the determination process and improving the accuracy of the determination result.
Description
Technical Field
The invention relates to the technical field of petroleum industry, in particular to a method, a device and a storage medium for determining the source of pipe type underground falling objects.
Background
With the increase of the times of continuous production and workover operations, different types of underground falling objects can appear in an oil well, wherein the underground falling objects are pipe underground falling objects formed by the fact that an oil pipe or a sleeve in the oil well is deformed and broken due to the corrosion of corrosive gas, and the underground falling objects are formed by the fact that a construction tool accidentally falls when the oil well is subjected to multiple workover operations. Fishing of the downhole junk is often required for efficient production later in the well. Because the tool type underground falling object comes from various construction tools when the oil well is repaired, the tool type underground falling object can be effectively salvaged by selecting a specific tool. For the tubular falling objects, because the tubular falling objects may come from an oil pipe or a casing in the oil well, the source of the tubular falling objects needs to be judged, and whether the casing in the oil well is damaged or not is determined according to the source of the tubular falling objects, so that the oil well can be repaired by taking more targeted well repairing measures.
In the related art, when fishing a tubular drop from an oil well, a technician may determine that the source of the tubular drop is a tubing or casing in the oil well according to the size of the tubular drop if the size of the tubular drop meets an observed size required by experience, and generally determine that the source of the tubular drop is a tubing in the oil well if the size of the tubular drop is too small to meet the observed size required by experience.
When the method is used for determining the source of the tubular underground falling object, due to the fact that the experience of technical personnel is insufficient and the size of the fished tubular underground falling object cannot meet the requirements, the technical personnel can have strong subjectivity when determining the source of the tubular underground falling object, and the determination result is inaccurate.
Disclosure of Invention
The embodiment of the invention provides a method, a device and a storage medium for determining the source of a tube underground falling object, which can be used for solving the problem that the determination result is inaccurate when a technician determines the source of the tube underground falling object by experience. The technical scheme is as follows:
in a first aspect, there is provided a method of determining the source of a tubular fish, the method comprising:
acquiring the radius of an oil pipe in a target oil well and the radius of a casing in the target oil well;
determining a radius of a projected arc of a camber of a tubular type downhole fish in the target well, the tubular type downhole fish being tubing debris falling from tubing in the target well or casing debris falling from casing in the target well;
determining a source of the tubular fish based on a radius of a tubing in the target well, a radius of a casing in the target well, and a radius of the projected arc.
Optionally, the determining a radius of a projection arc of the tubular downhole object in the target oil well comprises:
determining any two points on the projection arc line as a first tangent point and a second tangent point respectively;
determining a first tangent of the projected arc based on the first tangent point, determining a second tangent of the projected arc based on the second tangent point;
determining a first perpendicular line passing through the first tangent point and perpendicular to the first tangent line, and determining a second perpendicular line passing through the second tangent point and perpendicular to the second tangent line;
determining an intersection point of the first perpendicular line and the second perpendicular line;
determining a radius of the projected arc based on a first distance between the first tangent point and the intersection point, and a second distance between the second tangent point and the intersection point.
Optionally, the determining the source of the tubular fish based on the radius of the tubing in the target well, the radius of the casing in the target well, and the radius of the projected arc comprises:
determining a first radius difference between the radius of the projected arc and the radius of the tubing, and determining a second radius difference between the radius of the projected arc and the radius of the casing;
if the absolute value of the first radius difference is not larger than a deviation threshold value and the absolute value of the second radius difference is larger than the deviation threshold value, determining that the source of the tubular underground falling object is the oil pipe in the target oil well;
if the absolute value of the second radius difference is not greater than the deviation threshold and the absolute value of the first radius difference is greater than the deviation threshold, determining that the source of the tubular fish is a casing in the target well.
Optionally, before determining the radius of the arc of the projection of the arc of the tube-like downhole falling object in the target oil well, the method further includes:
receiving coordinates of a plurality of projection points, and drawing the projection arc line according to the coordinates of the plurality of projection points, wherein the plurality of projection points refer to points on the projection arc line, and the coordinates of the plurality of projection points refer to the coordinates of the plurality of projection points in the same coordinate system; alternatively, the first and second electrodes may be,
the method includes receiving a plurality of dimensional parameters of the tubular fish, determining a structural model of the tubular fish based on the plurality of dimensional parameters, and determining the projected arc based on the structural model.
In a second aspect, there is provided an apparatus for determining the source of a tubular fish, the apparatus comprising:
the acquisition module is used for acquiring the radius of an oil pipe in a target oil well and the radius of a casing in the target oil well;
a first determination module for determining a radius of a projected arc of a camber of a tubular type downhole fall in the target oil well, the tubular type downhole fall being tubing debris falling from a tubing in the target oil well or casing debris falling from a casing in the target oil well;
a second determination module to determine a source of the tubular fish based on a radius of a tubing in the target well, a radius of a casing in the target well, and a radius of the projected arc.
Optionally, the first determining module is specifically configured to:
determining any two points on the projection arc line as a first tangent point and a second tangent point respectively;
determining a first tangent of the projected arc based on the first tangent point, determining a second tangent of the projected arc based on the second tangent point;
determining a first perpendicular line passing through the first tangent point and perpendicular to the first tangent line, and determining a second perpendicular line passing through the second tangent point and perpendicular to the second tangent line;
determining an intersection point of the first perpendicular line and the second perpendicular line;
determining a radius of the projected arc based on a first distance between the first tangent point and the intersection point, and a second distance between the second tangent point and the intersection point.
Optionally, the second determining module is specifically configured to:
determining a first radius difference between the radius of the projected arc and the radius of the tubing, and determining a second radius difference between the radius of the projected arc and the radius of the casing;
if the absolute value of the first radius difference is not larger than a deviation threshold value and the absolute value of the second radius difference is larger than the deviation threshold value, determining that the source of the tubular underground falling object is the oil pipe in the target oil well;
if the absolute value of the second radius difference is not greater than the deviation threshold and the absolute value of the first radius difference is greater than the deviation threshold, determining that the source of the tubular fish is a casing in the target well.
Optionally, the apparatus further comprises:
the receiving module is used for receiving the coordinates of a plurality of projection points and drawing the projection arc line according to the coordinates of the plurality of projection points, wherein the plurality of projection points refer to points on the projection arc line, and the coordinates of the plurality of projection points refer to the coordinates of the plurality of projection points in the same coordinate system; alternatively, the first and second electrodes may be,
the receiving module is used for receiving a plurality of size parameters of the tubular underground falling object, determining a structural model of the tubular underground falling object based on the plurality of size parameters, and determining the projection arc line based on the structural model.
In a third aspect, there is provided an apparatus for determining the source of a tubular fish, the apparatus comprising:
a processor and a memory for storing processor-executable instructions;
wherein the processor is configured to perform any of the methods of the first aspect above.
In a fourth aspect, a computer-readable storage medium is provided, in which a computer program is stored, which computer program, when being executed by a processor, carries out any of the methods of the first aspect.
The technical scheme provided by the embodiment of the invention has the following beneficial effects: the method comprises the steps of obtaining the radius of an oil pipe in a target oil well and the radius of a casing in the target oil well, determining the radius of a projection arc line of the arc surface of a pipe type underground falling object in the target oil well, wherein the pipe type underground falling object refers to oil pipe fragments falling from the oil pipe in the target oil well or casing fragments falling from the casing, and determining the source of the pipe type underground falling object based on the radius of the oil pipe in the target oil well, the radius of the casing in the target oil well and the radius of the projection arc line. That is, in the embodiment of the present invention, the radius of the arc of the tubular underground falling object may be compared with the radii of the oil pipe and the casing pipe in the target oil well, so as to determine whether the radius of curvature of the arc of the tubular underground falling object is closer to the radius of the oil pipe or the radius of the casing pipe, thereby determining the source of the tubular underground falling object, solving the problem that the determination result is inaccurate when a technician determines the source of the tubular underground falling object by experience, increasing the reliability of the determination process, improving the accuracy of the determination result, and providing technical support for the subsequent formulation of well workover measures with pertinence.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic flow chart of a method for determining a source of a tubular downhole junk according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart illustrating another method for determining the source of a tubular fish in a well according to an embodiment of the present invention;
FIG. 3 is a schematic diagram illustrating the determination of the radius of a projected arc in accordance with an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an apparatus for determining a source of a tubular downhole drop according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a terminal 500 according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 is a schematic flow chart of a method for determining a source of a tubular downhole junk according to an embodiment of the present invention, and referring to fig. 1, the method includes the following steps:
step 101: and acquiring the radius of the oil pipe in the target oil well and the radius of the casing in the target oil well.
Step 102: the radius of the projected arc of the pipe-like downhole drop in the target well is determined, pipe-like downhole drop being either tubing debris falling from the tubing in the target well or casing debris falling from the casing in the target well.
Step 103: and determining the source of the pipe-type underground falling object based on the radius of the oil pipe in the target oil well, the radius of the casing pipe in the target oil well and the radius of the projection arc line.
The method and the device can obtain the radius of the oil pipe in the target oil well and the radius of the casing in the target oil well, determine the radius of the projection arc line of the arc surface of the pipe type underground falling object in the target oil well, wherein the pipe type underground falling object refers to the oil pipe fragments falling from the oil pipe in the target oil well or the casing fragments falling from the casing in the target oil well, and determine the source of the pipe type underground falling object based on the radius of the oil pipe in the target oil well, the radius of the casing in the target oil well and the radius of the projection arc line. That is, in the embodiment of the present invention, the radius of the arc of the tubular underground falling object may be compared with the radii of the oil pipe and the casing pipe in the target oil well, so as to determine whether the radius of curvature of the arc of the tubular underground falling object is closer to the radius of the oil pipe or the radius of the casing pipe, thereby determining the source of the tubular underground falling object, solving the problem that the determination result is inaccurate when a technician determines the source of the tubular underground falling object by experience, increasing the reliability of the determination process, improving the accuracy of the determination result, and providing technical support for the subsequent formulation of well workover measures with pertinence.
Optionally, determining a radius of a projected arc of a camber of the tubular type downhole object in the target oil well comprises:
respectively determining any two points on the projection arc line as a first tangent point and a second tangent point;
determining a first tangent of the projected arc based on the first tangent point, and determining a second tangent of the projected arc based on the second tangent point;
determining a first perpendicular line passing through the first tangent point and perpendicular to the first tangent line, and determining a second perpendicular line passing through the second tangent point and perpendicular to the second tangent line;
determining the intersection point of the first perpendicular line and the second perpendicular line;
the radius of the projected arc is determined based on a first distance between the first tangent point and the intersection point, and a second distance between the second tangent point and the intersection point.
Optionally, determining the source of the tubular downhole junk based on the radius of the tubing in the target well, the radius of the casing in the target well, and the radius of the projected arc, comprises:
determining a first radius difference between the radius of the projected arc and the radius of the tubing, and determining a second radius difference between the radius of the projected arc and the radius of the casing;
if the absolute value of the first radius difference is not larger than the deviation threshold value and the absolute value of the second radius difference is larger than the deviation threshold value, determining that the source of the pipe type underground falling object is the oil pipe in the target oil well;
and if the absolute value of the second radius difference is not larger than the deviation threshold value and the absolute value of the first radius difference is larger than the deviation threshold value, determining that the source of the pipe-type underground falling object is the casing in the target oil well.
Optionally, before determining the radius of the arc of the projection of the arc of the tube-like downhole falling object in the target oil well, the method further includes:
receiving the coordinates of a plurality of projection points, and drawing a projection arc line according to the coordinates of the plurality of projection points, wherein the plurality of projection points refer to points on the projection arc line, and the coordinates of the plurality of projection points refer to the coordinates of the plurality of projection points in the same coordinate system; alternatively, the first and second electrodes may be,
the method includes receiving a plurality of dimensional parameters of the tubular downhole junk, determining a structural model of the tubular downhole junk based on the plurality of dimensional parameters, and determining a projection arc based on the structural model.
All the above optional technical solutions can be combined arbitrarily to form an optional embodiment of the present invention, which is not described in detail herein.
Fig. 2 is a schematic flow chart of another method for determining the source of a tubular downhole junk according to an embodiment of the present invention, where the method may be applied to a terminal, which may be a mobile phone, a tablet computer, a computer, or the like. Referring to fig. 2, the method comprises the steps of:
step 201: and acquiring the radius of the oil pipe in the target oil well and the radius of the casing in the target oil well.
The oil pipe in the target oil well refers to a steel pipeline for transporting crude oil and natural gas from a hydrocarbon reservoir to the surface after the target oil well is drilled. In the embodiment of the invention, the terminal can acquire the radius of the oil pipe in the target oil well input by the user, or the terminal can receive the radius of the oil pipe in the target oil well sent by other equipment, or the terminal can retrieve the radius of the oil pipe in the target oil well from the database in which the well body structure parameters of the target oil well are stored. Wherein, the radius of the oil pipe in the target oil well can be 31mm and 30 mm.
The casing in the target oil well is a steel pipeline for supporting the wall of the oil well, and the casing can be used in the oil well to ensure the smooth drilling process and the normal operation of the whole oil well after completion. In the embodiment of the invention, the manner of acquiring the radius of the casing in the target oil well by the terminal can refer to the manner of acquiring the radius of the oil pipe in the target oil well. The embodiments of the present invention are not described herein. Wherein, the radius of the casing of the target oil well can be 62mm and 60.5 mm.
It should be noted that the wall of both the oil pipe and the casing has a certain thickness, and the radius of the oil pipe in the embodiment of the present invention may refer to the inner radius of the oil pipe, and the radius of the casing refers to the inner radius of the casing.
Step 202: and acquiring a projection arc of the arc surface of the pipe-like underground falling object in the target oil well.
Tubular-type downhole debris refers to tubing debris falling from tubing in a target well or casing debris falling from casing in a target well. In the embodiment of the invention, a technician can salvage the underground falling objects of the oil well by utilizing the underground fishing tool and the matched tool facility, analyze the types of the underground falling objects and screen out the pipe type underground falling objects which possibly come from an oil pipe or a casing pipe. And finally, cleaning the surface residues of the pipe underground falling objects by using light crude oil, wherein the physical structure of the pipe underground falling objects is prevented from being damaged in the cleaning process.
Because the tubular falling object refers to the chips falling off from the wall of the oil pipe or the casing, the cambered surface of the tubular falling object is actually the cambered surface where the wall of the oil pipe or the casing is located, and the curvature radius of the cambered surface of the tubular falling object is actually equal to the radius of the oil pipe or the casing under ideal conditions. Based on this, in the embodiment of the present invention, the terminal may first acquire the projection curve of the arc surface of the tubular type downhole drop, and then determine the radius of the projection arc through steps 203 and 204, and determine whether the tubular type downhole drop is from the oil pipe or the casing by comparing the radius of the projection arc with the radius of the oil pipe, and the radius of the projection arc with the radius of the casing.
Specifically, in the embodiment of the present invention, the terminal may obtain the projected arc of the arc surface of the tubular downhole falling object by several different methods as follows.
1) And receiving the coordinates of the plurality of projection points, and drawing a projection arc line according to the coordinates of the plurality of projection points, wherein the plurality of projection points refer to points on the projection arc line, and the coordinates of the plurality of projection points refer to the coordinates of the plurality of projection points in the same coordinate system.
After the pipe underground falling object is obtained, the technical staff can firstly project the cambered surface of the pipe underground falling object onto the projection surface to obtain an initial projection arc line on the projection surface. Specifically, a technician may establish a coordinate system on a piece of white paper, so that the arc surface of the tubular underground falling object is perpendicular to the plane of the white paper, and the arc surface of the tubular underground falling object is projected onto the white paper, thereby obtaining an initial projection arc of the arc surface of the tubular underground falling object. The technician may then select a plurality of proxels on the initial projection arc and determine the coordinates of the plurality of proxels in the established coordinate system. After acquiring the coordinates of the plurality of projection points, a technician may input the coordinates of the plurality of projection points into the terminal, and the terminal may receive the coordinates of the plurality of projection points and draw a projection arc according to the coordinates of the plurality of projection points.
2) The method includes receiving a plurality of dimensional parameters of the tubular downhole junk, determining a structural model of the tubular downhole junk based on the plurality of dimensional parameters, and determining a projection arc based on the structural model.
In the embodiment of the invention, the terminal can acquire a plurality of size parameters input by a user or a plurality of size parameters obtained by measurement of other equipment, and carry out simulation according to the plurality of size parameters to obtain the simulated structure model of the pipe-type underground falling object. Then, the terminal can project the arc surface of the simulation structure model, so as to obtain a projection arc line. The plurality of size parameters of the tube underground falling object can be the height of the tube underground falling object, the thickness of the tube underground falling object, the length of an inner arc line on the inner arc surface of the tube underground falling object on the same horizontal plane, the length of an outer arc line on the outer arc surface of the tube underground falling object on the same horizontal plane and the like.
Optionally, in the embodiment of the present invention, the terminal may further perform image acquisition on the determined initial projection arc, and send the acquired image including the initial projection arc to the terminal, and the terminal may process the image, so as to identify the projection arc from the image.
It should be noted that, in practical application, the terminal may further obtain the projection arc of the arc surface of the tubular downhole falling object in the target oil well by other methods, which is not limited in the embodiment of the present invention.
Step 203: and determining the radius of a projection arc of the arc surface of the pipe-like underground falling object in the target oil well.
After the projection arc of the pipe-like underground falling object in the target oil well is obtained, the terminal may determine the radius of the projection arc according to the following steps 2031-2035.
Step 2031：And determining any two points on the projection arc as a first tangent point and a second tangent point respectively.
The first tangent point and the second tangent point are any two points on the projection arc line, and the terminal can be randomly selected by using a random function mode when the first tangent point and the second tangent point are selected. For example, the terminal may select points of two arc end points on the projected arc as the first tangent point and the second tangent point, or may select a point in the middle of the arc and one end point of the arc as the first tangent point and the second tangent point.
FIG. 3 is a schematic diagram illustrating the determination of the radius of a projected arc in accordance with an embodiment of the present invention. Taking fig. 3 as an example, a plurality of points are included in a projection arc, and the terminal may randomly select two points a and B from the plurality of points, determine point a as a first tangent point of the projection arc, and determine point B as a second tangent point of the projection arc.
Step 2032:a first tangent to the projected arc is determined based on the first tangent point and a second tangent to the projected arc is determined based on the second tangent point.
After determining the first tangent point and the second tangent point, the terminal may make a tangent to the projection arc through the first tangent point to obtain a first tangent to the projection arc, and make a tangent to the projection arc through the second tangent point to obtain a second tangent to the projection arc.
Taking FIG. 3 as an example, the first tangent point A is a straight line L tangent to the projection arc1The straight line L1Namely the first tangent line, and the second tangent point B is used for making a straight line L tangent to the projection arc line2The straight line L2Namely the second tangent.
Step 2033:a first perpendicular line passing through the first tangent point and perpendicular to the first tangent line is determined, and a second perpendicular line passing through the second tangent point and perpendicular to the second tangent line is determined.
Taking FIG. 3 as an example, the first tangent point A is perpendicular to the first tangent line L1Straight line L of3Will be a straight line L3Determined as a first perpendicular line, perpendicular to a second tangent line L at a second tangent point B2Straight line L of4Will be a straight line L4Identified as the second perpendicular.
Step 2034:an intersection point of the first perpendicular line and the second perpendicular line is determined.
Since the first and second perpendicular lines are perpendicular lines of the tangent line on the projection arc line, the first and second perpendicular lines will intersect at a point. As shown in fig. 3, the first perpendicular line L3And a second perpendicular line L4Intersecting at point O.
Step 2035:the radius of the projected arc is determined based on a first distance between the first tangent point and the intersection point, and a second distance between the second tangent point and the intersection point.
In the embodiment of the present invention, since there may be a certain error in the projection process of the tubular downhole falling object, or the arc surface of the tubular downhole falling object is not smooth, or the arc surface of the tubular downhole falling object is not a section of a standard circle, there may be a difference in the radius of curvature of each point of the projection arc determined according to the arc surface, that is, the first distance and the second distance may not be equal, in which case, the terminal may determine the radius of the projection arc according to the first distance and the second distance by the following method.
Specifically, when the first distance and the second distance are equal, the terminal may determine the first distance or the second distance as the radius of the projection arc; when the first distance and the second distance are not equal, if the difference value of the first distance and the second distance is not larger than the distance threshold value, determining the average value of the first distance and the second distance as the radius of the projection arc; if the difference between the first distance and the second distance is greater than the distance threshold, the terminal may reselect two points from the projection arc as the first tangent point and the second tangent point, and determine the first distance and the second distance according to step 2032 and 2034 again, until the determined difference between the first distance and the second distance is not greater than the distance threshold, determine the average value of the first distance and the second distance as the radius of the projection arc.
Taking fig. 3 as an example, determining a direct distance from the first tangent point a to the intersection point O as a first distance, determining a distance from the second tangent point B to the intersection point O as a second distance, and when the first distance is 31mm and the second distance is 31mm, the terminal may determine that the radius of the projection arc is 31 mm; when the first distance is 31mm, the second distance is 30mm and the distance threshold is 2mm, the difference between the first distance and the second distance is 1mm and is smaller than the distance threshold, and the average value of the first distance and the second distance, namely 30.5mm, is determined as the radius of the projection arc; when the first distance is 33mm, the second distance is 30mm, and the distance threshold is 2mm, because a difference between the first distance and the second distance is greater than the distance threshold, the terminal may newly select two points from the projection arc as the first tangent point and the second tangent point, and determine the first distance and the second distance according to the newly determined first tangent point and the second tangent point, assuming that the newly determined first distance is 31mm and the newly determined second distance is 30.5mm, and because the difference between the first distance and the second distance is smaller than the distance threshold at this time, the terminal may determine an average value of 30.75mm between the first distance and the second distance as the radius of the projection arc.
It should be noted that the data shown in fig. 3 is only exemplary data given by the embodiment of the present invention, and does not limit the present invention.
Step 204: and determining the source of the pipe-type underground falling object based on the radius of the oil pipe in the target oil well, the radius of the casing pipe in the target oil well and the radius of the projection arc line.
After determining the radius of the projected arc, the terminal may determine a first radius difference between the radius of the projected arc and the radius of the tubing and a second radius difference between the radius of the projected arc and the radius of the casing. And if the absolute value of the first radius difference is not larger than the deviation threshold value and the absolute value of the second radius difference is larger than the deviation threshold value, determining that the source of the pipe type underground falling object is the oil pipe in the target oil well. And if the absolute value of the second radius difference is not larger than the deviation threshold value and the absolute value of the first radius difference is larger than the deviation threshold value, determining that the source of the pipe-type underground falling object is the casing in the target oil well.
Wherein after determining the radius of the projected arc, the terminal may compare the radius of the projected arc to the radius of the tubing and the radius of the casing, respectively, to determine whether the tubular fish is from the tubing or the casing.
Specifically, the terminal may calculate a difference between the radius of the projection arc and the radius of the oil pipe to obtain a first radius difference, and calculate a difference between the radius of the projection arc and the radius of the casing pipe to obtain a second radius difference. After determining the first radius difference and the second radius difference, the terminal may determine whether the radius of the projected arc is closer to the radius of the tubing or the radius of the casing by setting a deviation threshold and comparing the first radius difference and the second radius difference with the deviation threshold, respectively, since the radius of the tubing and the radius of the casing in the well are different.
Where the deviation threshold effectively limits within what range the radius of the projected arc is, the terminal may determine that the tubular fish is from the tubing, and within what range the terminal may determine that the tubular fish is from the casing. That is, the deviation threshold actually refers to the maximum deviation allowed between the radius of the projected arc and the radius of the tubing or casing. And, the deviation threshold is less than half of the difference between the radius of the casing and the radius of the tubing.
On the basis, when the first radius difference is smaller than the deviation threshold value and the second radius difference is larger than the deviation threshold value, the deviation between the radius of the projection arc and the radius of the oil pipe is within the allowed maximum deviation, namely, the curvature radius of the arc of the pipe type underground falling object is closer to the radius of the oil pipe, and then the terminal can determine that the pipe type underground falling object comes from the oil pipe.
When the second radius difference is smaller than the deviation threshold value and the first radius difference is larger than the deviation threshold value, the deviation between the radius of the projection arc and the radius of the casing is within the allowed maximum deviation, namely, the curvature radius of the arc of the tube type downhole drop is closer to the radius of the casing, and at this time, the terminal can determine that the tube type downhole drop comes from the casing.
For example, assume that the projected arc of the face to fish an uphole tubular fish from a well has a radius of 31.7mm, while the tubing radius in the well is 31mm and the casing radius is 60.5 mm. Assuming that the deviation threshold is 3mm, in this case, the difference between the radius of the projected arc of the tubular type downhole drop and the radius of the tubing is calculated to obtain a first radius difference of 0.7mm, and the difference between the radius of the projected arc of the tubular type downhole drop and the radius of the casing is calculated to obtain a second radius difference of-28.8 mm. Since the absolute value of the first radius difference is smaller than the deviation threshold value, and the absolute value of the second radius difference is much larger than the deviation threshold value, it can be known that the radius of the projection arc of the arc surface of the tubular underground falling object is closer to the radius of the oil pipe, that is, the radius of curvature of the arc surface of the tubular underground falling object is closer to the radius of the oil pipe, and at this time, it can be determined that the tubular underground falling object comes from the oil pipe in the target oil well.
As another example, assume that the projected arc of the face of an uphole fish of tubing from a well has a radius of 59.2mm, while the tubing radius in the well is 31mm and the casing radius is 60.5 mm. Assuming that the deviation threshold is 3mm, in this case, the difference between the radius of the projected arc of the tubular type downhole drop and the radius of the tubing is calculated to obtain a first radius difference of 28.2mm, and the difference between the radius of the projected arc of the tubular type downhole drop and the radius of the casing is calculated to obtain a second radius difference of-1.3 mm. Since the absolute value of the second radius difference is smaller than the deviation threshold, and the absolute value of the first radius difference is much larger than the deviation threshold, it can be known that the radius of the arc of the tubular downhole drop is closer to the radius of the casing, that is, the radius of curvature of the arc of the tubular downhole drop is closer to the radius of the casing, and at this time, the casing of the tubular downhole drop from the target oil well can be determined.
In the embodiment of the invention, the terminal can obtain the radius of the oil pipe in the target oil well and the radius of the casing in the target oil well, determine the radius of the projection arc line of the arc surface of the pipe-type underground falling object in the target oil well, wherein the pipe-type underground falling object refers to the oil pipe fragments falling from the oil pipe in the target oil well or the casing fragments falling from the casing, and determine the source of the pipe-type underground falling object based on the radius of the oil pipe in the target oil well, the radius of the casing in the target oil well and the radius of the projection arc line. That is, in the embodiment of the present invention, the radius of the arc of the tubular underground falling object may be compared with the radii of the oil pipe and the casing pipe in the target oil well, so as to determine whether the radius of curvature of the arc of the tubular underground falling object is closer to the radius of the oil pipe or the radius of the casing pipe, thereby determining the source of the tubular underground falling object, solving the problem that the determination result is inaccurate when a technician determines the source of the tubular underground falling object by experience, increasing the reliability of the determination process, improving the accuracy of the determination result, and providing technical support for the subsequent formulation of well workover measures with pertinence.
Fig. 4 is a schematic structural diagram of an apparatus for determining a source of a tubular downhole drop according to an embodiment of the present invention. Referring to fig. 4, the apparatus may include:
the acquiring module 401 is used for acquiring the radius of an oil pipe in a target oil well and the radius of a casing in the target oil well;
a first determining module 402, configured to determine a radius of a projected arc of a curved surface of a tubular type downhole drop in a target oil well, where the tubular type downhole drop is tubing debris falling from a tubing in the target oil well or casing debris falling from a casing in the target oil well;
a second determining module 403, configured to determine a source of the tubular downhole junk based on the radius of the tubing in the target well, the radius of the casing in the target well, and the radius of the projected arc.
Optionally, the first determining module 402 is specifically configured to:
respectively determining any two points on the projection arc line as a first tangent point and a second tangent point;
determining a first tangent of the projected arc based on the first tangent point, and determining a second tangent of the projected arc based on the second tangent point;
determining a first perpendicular line passing through the first tangent point and perpendicular to the first tangent line, and determining a second perpendicular line passing through the second tangent point and perpendicular to the second tangent line;
determining the intersection point of the first perpendicular line and the second perpendicular line;
the radius of the projected arc is determined based on a first distance between the first tangent point and the intersection point, and a second distance between the second tangent point and the intersection point.
Optionally, the second determining module 403 is specifically configured to:
determining a first radius difference between the radius of the projected arc and the radius of the tubing, and determining a second radius difference between the radius of the projected arc and the radius of the casing;
if the absolute value of the first radius difference is not larger than the deviation threshold value and the absolute value of the second radius difference is larger than the deviation threshold value, determining that the source of the pipe type underground falling object is the oil pipe in the target oil well;
and if the absolute value of the second radius difference is not larger than the deviation threshold value and the absolute value of the first radius difference is larger than the deviation threshold value, determining that the source of the pipe-type underground falling object is the casing in the target oil well.
Optionally, the apparatus further comprises:
the receiving module is used for receiving the coordinates of the plurality of projection points and drawing a projection arc line according to the coordinates of the plurality of projection points, the plurality of projection points refer to points on the projection arc line, and the coordinates of the plurality of projection points refer to the coordinates of the plurality of projection points in the same coordinate system; alternatively, the first and second electrodes may be,
the receiving module is used for receiving a plurality of size parameters of the tube type underground falling object, determining a structural model of the tube type underground falling object based on the size parameters, and determining the projection arc line based on the structural model.
In the embodiment of the invention, the terminal can acquire the radius of the oil pipe in the target oil well and the radius of the casing in the target oil well, determine the radius of the projection arc of the cambered surface of the tubular falling object in the target oil well, wherein the tubular falling object refers to the falling oil pipe debris from the oil pipe in the target oil well or the falling casing debris from the casing in the target oil well, and determine the source of the tubular falling object based on the radius of the oil pipe in the target oil well, the radius of the casing in the target oil well and the radius of the projection arc. That is, in the embodiment of the present invention, the radius of the arc of the tubular underground falling object may be compared with the radii of the oil pipe and the casing pipe in the target oil well, so as to determine whether the radius of curvature of the arc of the tubular underground falling object is closer to the radius of the oil pipe or the radius of the casing pipe, thereby determining the source of the tubular underground falling object, solving the problem that the determination result is inaccurate when a technician determines the source of the tubular underground falling object by experience, increasing the reliability of the determination process, improving the accuracy of the determination result, and providing technical support for the subsequent formulation of well workover measures with pertinence.
It should be noted that: in the device for determining the source of the tubular downhole falling object provided in the above embodiment, when determining the source of the tubular downhole falling object, only the division of the functional modules is used for illustration, and in practical applications, the function distribution may be completed by different functional modules according to needs, that is, the internal structure of the device may be divided into different functional modules to complete all or part of the functions described above. In addition, the determining device for determining the source of the tube underground falling object and the determining method embodiment for determining the source of the tube underground falling object provided by the embodiments belong to the same concept, and specific implementation processes thereof are detailed in the method embodiments and are not described herein again.
Fig. 5 is a schematic structural diagram of a terminal 500 according to an embodiment of the present invention. The terminal 500 may be: tablet computers, notebook computers or desktop computers. Terminal 500 may also be referred to by other names such as user equipment, portable terminal, laptop terminal, desktop terminal, and the like.
In general, the terminal 500 includes: a processor 501 and a memory 502.
The processor 501 may include one or more processing cores, such as a 4-core processor, an 8-core processor, and so on. The processor 501 may be implemented in at least one hardware form of a DSP (Digital Signal Processing), an FPGA (Field-Programmable Gate Array), and a PLA (Programmable Logic Array). The processor 501 may also include a main processor and a coprocessor, where the main processor is a processor for Processing data in an awake state, and is also called a Central Processing Unit (CPU); a coprocessor is a low power processor for processing data in a standby state. In some embodiments, the processor 501 may be integrated with a GPU (Graphics Processing Unit), which is responsible for rendering and drawing the content required to be displayed on the display screen. In some embodiments, processor 501 may also include an AI (Artificial Intelligence) processor for processing computational operations related to machine learning.
In some embodiments, the terminal 500 may further optionally include: a peripheral interface 503 and at least one peripheral. The processor 501, memory 502 and peripheral interface 503 may be connected by a bus or signal lines. Each peripheral may be connected to the peripheral interface 503 by a bus, signal line, or circuit board. Specifically, the peripheral device includes: at least one of radio frequency circuitry 504, touch screen display 504, camera 506, audio circuitry 507, positioning components 508, and power supply 509.
The peripheral interface 503 may be used to connect at least one peripheral related to I/O (Input/Output) to the processor 501 and the memory 502. In some embodiments, the processor 501, memory 502, and peripheral interface 503 are integrated on the same chip or circuit board; in some other embodiments, any one or two of the processor 501, the memory 502, and the peripheral interface 503 may be implemented on a separate chip or circuit board, which is not limited in this embodiment.
The Radio Frequency circuit 504 is used for receiving and transmitting RF (Radio Frequency) signals, also called electromagnetic signals. The radio frequency circuitry 504 communicates with communication networks and other communication devices via electromagnetic signals. The rf circuit 504 converts an electrical signal into an electromagnetic signal to transmit, or converts a received electromagnetic signal into an electrical signal. Optionally, the radio frequency circuit 504 includes: an antenna system, an RF transceiver, one or more amplifiers, a tuner, an oscillator, a digital signal processor, a codec chipset, a subscriber identity module card, and so forth. The radio frequency circuitry 504 may communicate with other terminals via at least one wireless communication protocol. The wireless communication protocols include, but are not limited to: metropolitan area networks, various generation mobile communication networks (2G, 3G, 4G, and 4G), Wireless local area networks, and/or WiFi (Wireless Fidelity) networks. In some embodiments, the rf circuit 504 may further include NFC (Near Field Communication) related circuits, which are not limited in this application.
The display 504 is used to display a UI (User Interface). The UI may include graphics, text, icons, video, and any combination thereof. When the display screen 505 is a touch display screen, the display screen 505 also has the ability to capture touch signals on or over the surface of the display screen 505. The touch signal may be input to the processor 501 as a control signal for processing. At this point, the display screen 505 may also be used to provide virtual buttons and/or a virtual keyboard, also referred to as soft buttons and/or a soft keyboard. In some embodiments, the display screen 505 may be one, providing the front panel of the terminal 500; in other embodiments, the display screens 505 may be at least two, respectively disposed on different surfaces of the terminal 500 or in a folded design; in still other embodiments, the display 505 may be a flexible display disposed on a curved surface or on a folded surface of the terminal 500. Even more, the display screen 505 can be arranged in a non-rectangular irregular figure, i.e. a shaped screen. The Display screen 505 may be made of LCD (Liquid Crystal Display), OLED (Organic Light-Emitting Diode), and other materials.
The camera assembly 506 is used to capture images or video. Optionally, camera assembly 506 includes a front camera and a rear camera. Generally, a front camera is disposed at a front panel of the terminal, and a rear camera is disposed at a rear surface of the terminal. In some embodiments, the number of the rear cameras is at least two, and each rear camera is any one of a main camera, a depth-of-field camera, a wide-angle camera and a telephoto camera, so that the main camera and the depth-of-field camera are fused to realize a background blurring function, and the main camera and the wide-angle camera are fused to realize panoramic shooting and VR (Virtual Reality) shooting functions or other fusion shooting functions. In some embodiments, camera assembly 506 may also include a flash. The flash lamp can be a monochrome temperature flash lamp or a bicolor temperature flash lamp. The double-color-temperature flash lamp is a combination of a warm-light flash lamp and a cold-light flash lamp, and can be used for light compensation at different color temperatures.
The positioning component 508 is used for positioning the current geographic Location of the terminal 500 for navigation or LBS (Location Based Service). The Positioning component 508 may be a Positioning component based on the united states GPS (Global Positioning System), the chinese beidou System, the russian graves System, or the european union's galileo System.
That is, not only is an embodiment of the present invention provide a terminal including a processor and a memory for storing processor-executable instructions, where the processor is configured to execute the method in the embodiment shown in fig. 1 or fig. 2, but also an embodiment of the present invention provides a computer-readable storage medium, where a computer program is stored, and the computer program, when executed by the processor, can implement the method for determining the source of the tubular downhole debris in the embodiment shown in fig. 1 or fig. 2.
Those skilled in the art will appreciate that the configuration shown in fig. 5 is not intended to be limiting of terminal 500 and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components may be used.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. A method of determining a source of a tubular fish, the method comprising:
acquiring the radius of an oil pipe in a target oil well and the radius of a casing in the target oil well;
determining a radius of a projected arc of a camber of a tubular type downhole fish in the target well, the tubular type downhole fish being tubing debris falling from tubing in the target well or casing debris falling from casing in the target well;
determining a source of the tubular fish based on a radius of a tubing in the target well, a radius of a casing in the target well, and a radius of the projected arc;
wherein the determining the radius of the arc of the projection of the arc of the tube-like downhole falling object in the target oil well comprises:
determining any two points on the projection arc line as a first tangent point and a second tangent point respectively;
determining a first tangent of the projected arc based on the first tangent point, determining a second tangent of the projected arc based on the second tangent point;
determining a first perpendicular line passing through the first tangent point and perpendicular to the first tangent line, and determining a second perpendicular line passing through the second tangent point and perpendicular to the second tangent line;
determining an intersection point of the first perpendicular line and the second perpendicular line;
determining a radius of the projected arc based on a first distance between the first tangent point and the intersection point, and a second distance between the second tangent point and the intersection point.
2. The method of claim 1, wherein determining the source of the tubular fish based on the radius of the tubing in the target well, the radius of the casing in the target well, and the radius of the projected arc comprises:
determining a first radius difference between the radius of the projected arc and the radius of the tubing, and determining a second radius difference between the radius of the projected arc and the radius of the casing;
if the absolute value of the first radius difference is not larger than a deviation threshold value and the absolute value of the second radius difference is larger than the deviation threshold value, determining that the source of the tubular underground falling object is the oil pipe in the target oil well;
if the absolute value of the second radius difference is not greater than the deviation threshold and the absolute value of the first radius difference is greater than the deviation threshold, determining that the source of the tubular fish is a casing in the target well.
3. The method of claim 1, wherein prior to determining the radius of the projected arc of the tubular type downhole fish in the target oil well, further comprising:
receiving coordinates of a plurality of projection points, and drawing the projection arc line according to the coordinates of the plurality of projection points, wherein the plurality of projection points refer to points on the projection arc line, and the coordinates of the plurality of projection points refer to the coordinates of the plurality of projection points in the same coordinate system; alternatively, the first and second electrodes may be,
the method includes receiving a plurality of dimensional parameters of the tubular fish, determining a structural model of the tubular fish based on the plurality of dimensional parameters, and determining the projected arc based on the structural model.
4. An apparatus for determining the source of a tubular fish, the apparatus comprising:
the acquisition module is used for acquiring the radius of an oil pipe in a target oil well and the radius of a casing in the target oil well;
a first determining module for determining a radius of a projected arc of a curved surface of a tubular type downhole junk in the target oil well, comprising: determining any two points on the projection arc line as a first tangent point and a second tangent point respectively; determining a first tangent of the projected arc based on the first tangent point, determining a second tangent of the projected arc based on the second tangent point; determining a first perpendicular line passing through the first tangent point and perpendicular to the first tangent line, and determining a second perpendicular line passing through the second tangent point and perpendicular to the second tangent line; determining an intersection point of the first perpendicular line and the second perpendicular line; determining a radius of the projected arc based on a first distance between the first tangent point and the intersection point and a second distance between the second tangent point and the intersection point, the tubular downhole debris being tubing debris falling from tubing in the target well or casing debris falling from casing in the target well;
a second determination module to determine a source of the tubular fish based on a radius of a tubing in the target well, a radius of a casing in the target well, and a radius of the projected arc.
5. The apparatus of claim 4, wherein the second determining module is specifically configured to:
determining a first radius difference between the radius of the projected arc and the radius of the tubing, and determining a second radius difference between the radius of the projected arc and the radius of the casing;
if the absolute value of the first radius difference is not larger than a deviation threshold value and the absolute value of the second radius difference is larger than the deviation threshold value, determining that the source of the tubular underground falling object is the oil pipe in the target oil well;
if the absolute value of the second radius difference is not greater than the deviation threshold and the absolute value of the first radius difference is greater than the deviation threshold, determining that the source of the tubular fish is a casing in the target well.
6. The apparatus of any of claims 4-5, further comprising:
the receiving module is used for receiving the coordinates of a plurality of projection points and drawing the projection arc line according to the coordinates of the plurality of projection points, wherein the plurality of projection points refer to points on the projection arc line, and the coordinates of the plurality of projection points refer to the coordinates of the plurality of projection points in the same coordinate system; alternatively, the first and second electrodes may be,
the receiving module is used for receiving a plurality of size parameters of the tubular underground falling object, determining a structural model of the tubular underground falling object based on the plurality of size parameters, and determining the projection arc line based on the structural model.
7. An apparatus for determining the source of a tubular fish, the apparatus comprising:
a processor and a memory for storing processor-executable instructions;
wherein the processor is configured to perform the method of any one of claims 1-3.
8. A computer-readable storage medium, characterized in that the storage medium has stored therein a computer program which, when being executed by a processor, carries out the method of any one of claims 1-3.
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| CN2440001Y (en) * | 2000-09-26 | 2001-07-25 | 中国地质大学（北京） | Sleeved rod for drawing back equipment on sea for from shore |
| EP1978329A1 (en) * | 2007-04-04 | 2008-10-08 | Zumbach Electronic Ag | Method for measuring the roundness of round profiles |
| CN102171530B (en) * | 2008-10-02 | 2012-10-03 | 仲巴赫电子公司 | Method for determining shape parameters |
| CN101424506B (en) * | 2008-10-17 | 2013-01-02 | 红塔烟草(集团)有限责任公司 | Method for precision measurement of point on space surface and the space surface by utilizing point gage sphere centre coordinate |
| CN101382409A (en) * | 2008-10-24 | 2009-03-11 | 红塔烟草(集团)有限责任公司 | Method for precisely measuring points on space curved surface and space curved surface by using barycentric coordinate |
| CN101899956B (en) * | 2010-03-17 | 2013-02-27 | 北京华油油气技术开发有限公司 | Method for salvaging electric pump pipe column fish |
| CN201934045U (en) * | 2010-12-17 | 2011-08-17 | 中国石油天然气集团公司 | Tool for fishing coiled tubings |
| CN102425989A (en) * | 2011-08-22 | 2012-04-25 | 天津大学 | Image detection-based two-dimensional characteristic size measurement method |
| CN104806188B (en) * | 2015-05-08 | 2017-05-10 | 中国石油天然气股份有限公司 | Method for salvaging fish in well |
| CN204627489U (en) * | 2015-05-18 | 2015-09-09 | 中国石油集团渤海钻探工程有限公司 | Laterally opened down-hole metal junk strong magnetic die |
| US9745832B2 (en) * | 2015-08-13 | 2017-08-29 | Good Son Technologies LLC | Tool for creating impressions of downhole objects |
| CN205100968U (en) * | 2015-11-26 | 2016-03-23 | 邱永东 | A internal diameter lead stamp for salvaging downhole tool |
| CN105975775A (en) * | 2016-05-05 | 2016-09-28 | 哈尔滨工程大学 | Method for assessing submarine pipeline risk under impact effect of fallen objects |
| CN106014375B (en) * | 2016-05-23 | 2017-03-29 | 河海大学 | Suitable for drilling, hole hole type is drawn and the device and method that thing is taken in hole |
| CN107101578B (en) * | 2017-04-26 | 2019-07-02 | 长沙迪迈数码科技股份有限公司 | A kind of underground measuring point coordinate measurement method |
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