CN117649110A

CN117649110A - Method and related device for judging drilling blocking risk

Info

Publication number: CN117649110A
Application number: CN202311304012.9A
Authority: CN
Inventors: 管震; 丁建新; 覃吉; 王建华; 张宝权; 毛金涛
Original assignee: Kunlun Digital Technology Co ltd; China National Petroleum Corp
Current assignee: Kunlun Digital Technology Co ltd; China National Petroleum Corp
Priority date: 2023-10-09
Filing date: 2023-10-09
Publication date: 2024-03-05

Abstract

The invention discloses a method and a device for judging drilling blocking risks. Acquiring drilling data of a target well in real time, and judging whether a primary moment of a turntable exists according to the drilling data; if so, judging whether drilling data in a first preset time range before and after the initial opening time of the turntable meets preset detection conditions or not; if yes, determining the current working condition and starting torque data under the current working condition according to drilling data in a second preset time range before and after the initial opening time of the turntable; and judging whether the blocking risk exists under the current working condition according to the starting torque data under the current working condition. According to the drilling data monitored in real time, whether the drilling has the risk of blocking or not can be judged in advance, the automation of blocking risk early warning is realized, and the early warning efficiency and accuracy are improved.

Description

Method and related device for judging drilling blocking risk

Technical Field

The invention relates to the technical fields of information and petroleum industry, in particular to a method and a related device for judging drilling blocking risks.

Background

Drilling is a concealed underground project, and has a great deal of ambiguity, randomness and uncertainty, thus being a real high-risk operation. In the drilling process, various complex accidents can occur in the pit due to the factors of geology, management, personnel and the like, so that great economic loss is brought to the drilling, and the personal safety of operators can be even jeopardized; and as the development of the oil field is continued to be advanced, adverse influence factors on drilling operation are increased, and in the operation process, the underground condition is unpredictable, wherein the blocking condition frequently occurs. When the pipe is blocked, if the analysis problem is inaccurate or the deviation is overlarge, wrong measures are taken, a light person may delay the construction progress, the reworking is caused, a heavy person may clamp the pipe column in the sleeve, and the repair operation is even scrapped. This not only greatly increases the operating cost, but also affects the normal production of the oil-water well.

In addition, the problems of blocking and clamping are encountered, so that the well dredging treatment is one of important factors influencing the well drilling aging, and therefore, the underground accident complex blocking is accurately early-warned before the accident complex occurs, and the method is an effective means for reducing loss. At present, the underground accident complex blocking is manually monitored by depending on the experience of an expert, real-time monitoring cannot be achieved, and for tens to hundreds of wells in the whole oil field, the manual monitoring cost is huge, and an efficient and accurate method is needed to monitor the well in real time and predict blocking risks existing in the well so as to realize blocking early warning automation, improve early warning efficiency and accuracy, and is particularly important for reducing cost and enhancing efficiency, protecting personal safety of operators and improving well drilling efficiency.

Disclosure of Invention

The present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide a method and related apparatus for determining risk of stuck well that overcomes or at least partially solves the above-mentioned problems.

In a first aspect, an embodiment of the present invention provides a method for determining risk of blocking a drilling well, including:

in one embodiment, the drilling data comprises rotary table rotational speed data;

judging whether the initial opening moment of the turntable exists or not according to the drilling data comprises the following steps:

judging whether the rotating speed data of the rotating disc starts to increase from the first rotating speed threshold value until the moment of the rotating speed data is larger than or equal to the second rotating speed threshold value, and judging that the initial moment of the rotating disc exists if the rotating speed data of the rotating disc exists.

In one embodiment, the drilling data comprises hook load data;

the detection conditions include:

the rotating speed data of the rotating disk in a third preset time range before the initial opening time of the rotating disk are smaller than a second rotating speed threshold; and is also provided with

Rotating disc rotating speed data in a fourth preset time range after the initial opening time of the rotating disc are all larger than or equal to the second rotating speed threshold value; and the hook load data in the fourth preset time range after the initial opening time of the turntable are all larger than the preset hook load threshold value.

In one embodiment, the determining whether the drilling data in the first preset time range before and after the initial opening time of the turntable meets the preset detection condition includes:

judging whether the rotating speed data of the rotating disc and the hook load data in a first preset time range before and after the initial opening time of the rotating disc fall into the range of the detection conditions, and if so, meeting the detection conditions.

In one embodiment, the drilling data includes well depth data, bit position information, and torque data;

determining the current working condition and the starting torque data under the current working condition according to the drilling data in a second preset time range before and after the initial opening time of the turntable, wherein the method comprises the following steps:

determining a current working condition according to well depth data and drill bit position information in a second preset time range before and after the initial opening time of the turntable, wherein the current working condition comprises a first working condition and a second working condition;

obtaining maximum torque data in a second preset time range before and after the initial opening time of the turntable, obtaining starting torque data under a first working condition, and taking the starting torque data as first starting torque data and storing the first starting torque data; or obtaining starting torque data under the second working condition as second starting torque data.

In one embodiment, the determining whether the card blocking risk exists in the current working condition according to the starting torque data in the current working condition includes:

if the current working condition is the first working condition, acquiring two adjacent first starting torque data, judging whether the difference value of the two adjacent first starting torque data is larger than a preset first starting torque threshold value, and if so, judging that the risk of blocking exists;

if the current working condition is the second working condition, acquiring second starting torque data and corresponding third starting torque data, judging whether the difference value between the second starting torque data and the corresponding third starting torque data is larger than a preset second starting torque threshold value, judging whether the difference value between bit position information corresponding to the occurrence moment of the second starting torque data and bit position information corresponding to the occurrence moment of the third starting torque data is smaller than or equal to a preset distance threshold value, and judging that the blocking risk exists if the difference value is smaller than or equal to the preset distance threshold value; the third starting torque data are starting torque data under the first working condition, and in the stored starting torque data under the first working condition, the difference value between the bit position information corresponding to the third starting torque data at the occurrence time and the bit position information corresponding to the second starting torque data at the occurrence time is the smallest.

In one embodiment, if it is determined that there is a risk of blocking, the method further includes:

and carrying out early warning on the card blocking risk.

In a second aspect, an embodiment of the present invention provides a device for determining risk of blocking a drilling well, including:

the first judging module is used for acquiring drilling data of the target well in real time and judging whether the initial moment of the turntable exists or not according to the drilling data;

the second judging module is used for judging whether the drilling data in a first preset time range before and after the initial opening time of the turntable meet the preset detection conditions or not if the drilling data exist;

the determining module is used for determining the current working condition and the starting torque data under the current working condition according to the drilling data in a second preset time range before and after the initial opening moment of the turntable if the current working condition is met;

and the third judging module is used for judging whether the card blocking risk exists under the current working condition according to the starting torque data under the current working condition.

In a third aspect, an embodiment of the present invention provides a drilling stuck risk early warning system, including:

the server is used for executing the judgment method of the drilling blocking risk;

the terminal is used for displaying existing card blocking risk information.

In a fourth aspect, embodiments of the present invention provide a computing device comprising: the drilling well blocking risk judging device comprises a memory, a processor and a computer program which is stored in the memory and can run on the processor, wherein the processor realizes the drilling well blocking risk judging method when executing the program.

In a fifth aspect, an embodiment of the present invention provides a computer storage medium, where computer executable instructions are stored, where the computer executable instructions when executed by a processor implement the foregoing method for determining risk of drilling stuck cards.

In a sixth aspect, an embodiment of the present invention provides a computer program product, where the computer program product includes a computer program, and when executed by a processor, implements the method for determining risk of drilling stuck in the wellbore.

The technical scheme provided by the embodiment of the invention has the beneficial effects that at least:

according to the method for judging the drilling jam risk provided by the embodiment of the invention, whether the turnplate is initially opened is judged according to the drilling data of the target well acquired in real time, if the judgment result is that the turnplate is initially opened, whether the drilling data in the first preset time range before and after the turnplate is initially opened meets the preset detection condition is judged, if the judgment result is met, the starting torque data in the current working condition and the starting torque data in the current working condition are determined according to the drilling data in the second preset time range before and after the turnplate is initially opened, whether the jam risk exists in the current working condition is judged according to the starting torque data in the current working condition, and the maximum starting torque jam risk exists in the current working condition is judged by monitoring various drilling parameter indexes in the drilling process in real time.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims thereof as well as the appended drawings.

The technical scheme of the invention is further described in detail through the drawings and the embodiments.

Drawings

The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:

FIG. 1 is a flowchart of a method for determining risk of stuck well in an embodiment of the present invention;

FIG. 2 is a schematic diagram of a time window according to an embodiment of the invention;

FIG. 3 is a flowchart of a method for determining current operating conditions and starting torque data for the current operating conditions in accordance with a first embodiment of the present invention;

FIG. 4 is a second flowchart of a method for determining risk of stuck well in a second embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a device for determining risk of blocking a well according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of a first starting torque obtained in an embodiment of the present invention;

FIG. 7 is a schematic diagram of the standard starting torque obtained in an embodiment of the present invention;

FIG. 8 is a schematic diagram of drilling data obtained during a drilling operation in accordance with an embodiment of the present invention;

FIG. 9 is a second schematic diagram of drilling data obtained during a drilling operation in accordance with an embodiment of the present invention.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

In order to solve the problem that the drilling well cannot be monitored in real time and the blocking risk existing in the drilling well can not be predicted in the prior art, the embodiment of the invention provides a method and a related device for judging the blocking risk of the drilling well, the blocking risk of the drilling well is of various types, and the method and the related device for judging the blocking risk of the drilling well are particularly suitable for judging whether the maximum starting torque blocking risk exists or not.

Example 1

The first embodiment of the invention provides a method for judging drilling blocking risk, the flow of which is shown in figure 1, comprising the following steps:

step S101: acquiring drilling data of a target well in real time, and judging whether a primary opening moment of a turntable exists or not according to the drilling data;

step S102: if so, judging whether drilling data in a first preset time range before and after the initial opening time of the turntable meets preset detection conditions or not;

step S103: if yes, determining the current working condition and starting torque data under the current working condition according to drilling data in a second preset time range before and after the initial opening time of the turntable;

step S104: and judging whether the blocking risk exists under the current working condition according to the starting torque data under the current working condition.

In the drilling process, the instruments such as the comprehensive logging instrument can record various drilling parameter indexes in real time, and store the data of the various drilling parameter indexes recorded in real time into a database, and optionally, the invention is not limited to the process, and the real-time data recorded by the comprehensive logging instrument is a time sequence, namely, the data of the various drilling parameter indexes are related to time based on a mongoDB database stored by a distributed file; each moment corresponds to one piece of data, each piece of data is recorded according to a time sequence, each piece of data comprises various drilling parameter indexes (namely drilling data) such as well depth data, bit position information, hook height data, hook load data, torque data, rotating disc rotating speed data, riser pressure data, casing pressure data, drilling pressure data and the like, and the embodiment of the invention is not enumerated one by one.

In some alternative embodiments, real-time drilling data of the target well may be obtained from the database, specifically, a sliding window may be adopted, where the sliding window frames a time sequence according to a specified unit length, so as to calculate the drilling data in the frame, and the sliding block with a specified length slides on a scale, and drilling data in the sliding block can be obtained after each sliding unit, and as illustrated in fig. 2, for example, the length of the time window is set to be 1 hour, the length of the single sliding time is set to be 30 minutes, the current system time is 2023-03-03:08:00:00 and is at the position of the window 1, and the data start-stop time of the window 1 is [ 2023-03-03:07:00:00, 2023-03-03:08:00:00 ]; after 30 minutes, the current system time is 2023-03-03:08:30:00, the time window moves downwards to obtain window 2, and the data start and stop time of window 2 is [ 2023-03-03:07:30:00, 2023-03-03:08:30:00 ]; after 30 minutes, the current system time is 2023-03-0309:00:00, the time window moves downwards to obtain window 3, and the data start and stop time of window 3 is [2023-03-03 08:00:00, 2023-03-09:00:00 ]; the end time of the window is the current system latest time.

In the process of actually monitoring drilling data, early warning is a task with strong real-time performance, in order to be capable of predicting underground accidents in a complex manner at the first time, the single sliding time is not suitable to be set too long, and can be set to 30s according to actual conditions, namely, the change of the drilling data state in the 30s is monitored, and the specific single sliding time is set according to the actual conditions, so that the embodiment of the invention is not limited.

Because all the drilling data are stored in the database, when judging whether the drilling jam risk exists, only part of the drilling data are required to be acquired for analysis, specifically, the time (namely, the moment information for generating the drilling data), the torque data, the well depth data, the bit position information and the hook load data are included, and the real-time data acquired from the database are described by using a specific example as shown in the following table 1, wherein 3 rows of data in table 1 are listed in the table, each row represents one piece of drilling data acquired from the database, the first row represents the moment for generating the piece of drilling data, the 2 nd column to the 6 th row are all drilling data, and the first row represents the moment of 'at 2023-3-4:00:00:00, the rotating speed of the turntable is 0RPM, the torque is 4.5 kN.m, the well depth is 2000m, the bit position is 1800m and the hook load is 600 kN':

table 1:

in some alternative embodiments, since the drilling data is recorded in real time and stored in the database, there may be a case that all indexes in a certain piece of data are not acquired, or a case that some indexes in a certain piece of data are not acquired, after the real-time drilling data of the target well is acquired, the drilling data needs to be preprocessed, specifically, the record of the insufficiency of the drilling data may be discarded, or the missing data may be complemented, which is not limited by the embodiment of the present invention.

In some alternative embodiments, the drilling data includes turntable rotation speed data, and step S101 above, according to the drilling data, the determining whether there is a moment when the turntable is initially opened may be implemented by:

judging whether the rotating speed data of the rotating disk starts to increase from the first rotating speed threshold value to the moment of being more than or equal to the second rotating speed threshold value, and judging that the initial opening moment of the rotating disk exists if the rotating speed data of the rotating disk exists.

Specifically, the first rotational speed threshold may be set to 0RPM, the second rotational speed threshold may be set to 1RPM, in other words, it is detected whether there is a time when the rotational speed of the turntable increases from 0RPM to 1RPM or more, and if there is this time, that is, there is a turntable opening time, and this time is referred to as a turntable opening time, and the time when the rotational speed of the turntable is 1RPM or more is referred to as a t time, or may be referred to as the current time.

In some alternative embodiments, the drilling data includes hook load numbers, the detection conditions being:

the rotating speed data of the rotating disk in a third preset time range before the primary opening time of the rotating disk are smaller than a second rotating speed threshold value; and is also provided with

Rotating speed data of the rotating disk in a fourth preset time range after the primary opening time of the rotating disk are all larger than or equal to a second rotating speed threshold value; and the hook load data in the fourth preset time range after the initial opening time of the turntable are all larger than the preset hook load threshold value.

Specifically, the detection conditions are further divided into three constraint conditions:

constraint condition one

The values of the rotational speed of the turntable (turntable rotational speed data) in a third preset time range before the initial opening time of the turntable are smaller than the second rotational speed threshold, i.e. the turntable is in a stationary state in the third preset time range before the initial opening time of the turntable, optionally the third preset time is 30 seconds, the second rotational speed threshold is 1RPM, in other words, if the initial opening time of the turntable is the time t, the turntable is always in a stationary state in a time interval of [ t-30s, t ], i.e. the rotational speed of the turntable is always in a state smaller than 1RPM in the time interval.

Before the turntable is initially opened, a rest time of a third preset time (for example, 30 seconds) is given to exclude the situation that the turntable is stopped, in other words, if the turntable is originally in a non-stationary state (i.e., the rotating speed of the turntable is always in a state of 1RPM or more), then the rotating speed suddenly drops to 0RPM, and then the rotating speed is increased again to restore to the non-stationary state, where the situation is regarded as that the turntable is stopped and no record is made.

Constraint condition two

The values of the rotational speed of the turntable (turntable rotational speed data) within a fourth preset time range after the initial opening time of the turntable are all greater than or equal to the second rotational speed threshold, that is, within the fourth preset time range after the initial opening time of the turntable, the turntable is in an open state, that is, in a non-stationary state, optionally, the fourth preset time is 20 seconds, the second rotational speed threshold is 1RPM, in other words, if the initial opening time of the turntable is the time t, in a time interval of [ t, t+20s ], the turntable is always in an open state, that is, in a state in which the rotational speed of the turntable is always greater than or equal to 1 RPM.

Constraint condition three

In the time interval in the constraint condition II, the value of the hook load in each drilling data is larger than the hook load threshold value, and optionally, the hook load threshold value is 500kN, which is not limited by the embodiment of the invention.

In some alternative embodiments, the step S102 may be implemented in the following manner;

judging whether the rotating speed data of the rotating disc and the hook load data in a first preset time range before and after the initial opening time of the rotating disc fall into the range of detection conditions, and if so, meeting the detection conditions.

As can be seen from the above detection condition, if there is a moment of initial opening of the turntable, i.e., a moment t, then the turntable rotation speed data in the interval from 30 seconds before the moment t to the moment t needs to be less than 1RPM, and the turntable rotation speed data in the interval from the moment t to 20 seconds after the moment t needs to be equal to or greater than 1RPM, that is, the first preset time range may be divided into two time intervals, the first time interval represents the time range before the moment of initial opening of the turntable, the length of the first time interval corresponds to the time length of the third preset time, the second time interval represents the time range after the moment of initial opening of the turntable, the length of the second time interval corresponds to the time length of the fourth preset time, and if the turntable rotation speed data in the first time interval corresponds to the state in the first constraint condition and the turntable rotation speed data in the second time interval corresponds to the state in the second constraint condition, and the hook load data in the second time interval corresponds to the state in the third constraint condition, the detection condition is determined to be satisfied.

In some alternative embodiments, the drilling data includes well depth data, bit position information, and torque data, and step S103 may be implemented by: determining the current working condition and starting torque data under the current working condition according to drilling data in a second preset time range before and after the initial opening time of the turntable, wherein the method comprises the following steps:

step S301: determining a current working condition according to well depth data and bit position information in a second preset time range before and after the initial opening time of the turntable, wherein the current working condition comprises a first working condition and a second working condition;

step S302: obtaining maximum torque data in a second preset time range before and after the initial opening time of the turntable, obtaining starting torque data under a first working condition, and taking the starting torque data as first starting torque data and storing the first starting torque data; or obtaining starting torque data under the second working condition as second starting torque data.

The bit position information represents the position of the bit, the unit is expressed in meters, the well depth data represents the depth of the target well, and the unit is also expressed in meters, and in the step S301, the current working condition may be determined, for example, by the following manner:

calculating the difference value between the well depth data and the bit position information in each drilling datum in a second preset time range before and after the initial opening time of the turntable, wherein the second preset time range before and after the initial opening time of the turntable can be a time interval of [ t-10s, t+60s ], in other words, the time interval from 10s before the initial opening time of the turntable to 60s after the initial opening time of the turntable, if the difference value is larger than a first difference value threshold and smaller than or equal to a second difference value threshold, the current drilling working condition is considered to be under a large drilling working condition, and the current working condition is determined to be the drilling working condition, namely the first working condition;

if the difference is larger than a second difference threshold and smaller than the well depth data at the moment, the current working condition is considered to be under the large working condition of tripping, and the current working condition is determined to be the tripping working condition, namely a second working condition; optionally, the first difference threshold is 0.5 meters, and the second difference threshold is 30 meters, which is not limited in the embodiment of the present invention.

Correspondingly, in the time interval of [ t-10S, t+60s ], a plurality of pieces of drilling data are provided, and torque data are provided in each piece of drilling data, in the step S302, if the current working condition is the first working condition, the obtained maximum torque data in the time interval is the first starting torque, and the first starting torque is also called the standard starting torque; and if the current working condition is the second working condition, acquiring the maximum torque data in the time interval, namely the second starting torque.

In order to ensure the accuracy of the obtained standard starting torque, when the distance between the position of the drill bit and the bottom of the well is smaller than 0.5 meter, the drill bit is considered to contact the bottom of the well, and the drill bit pressure is generated at the moment, so that the torque data generated at the moment does not belong to the standard starting torque.

Empirically, a standard starting torque is generated when a single or a vertical column is connected during drilling, in other words, a standard starting torque data is theoretically generated every 30 meters drilled, further, each standard starting torque data generated during the drilling of a target well, the moment when the standard starting torque data are generated, well depth data corresponding to the moment and bit position information are stored, a standard starting torque database is built, as shown in the following table 2, taking the first row data in the table 2 as an example, the standard starting torque is generated at the moment 2023-3-4:00:00, the value of the standard starting torque is 8kN, the moment is 2000 meters at the well depth data position, and the corresponding bit position is 1990 meters:

table 2:

if the current operating condition is the first operating condition, the value of the first starting torque (standard starting torque) is recorded as "Torr", the value of the bit position information corresponding to the moment is "Bds", and if the current operating condition is the second operating condition, the value of the second starting torque is recorded as "Torr", and the value of the bit position information corresponding to the moment is "Bd".

In some alternative embodiments, the step S104 may be implemented by:

(1) If the current working condition is the first working condition, acquiring two adjacent first starting torque data, judging whether the difference value of the two adjacent first starting torque data is larger than a preset first starting torque threshold value, and if so, judging that the card blocking risk exists;

if the current working condition is the first working condition, the standard dynamic torque data (first starting torque data) obtained under the current working condition is denoted as Torr, the value of bit position information corresponding to the moment is Bds, the first starting torque data corresponding to bit position information closest to Bds is obtained from a standard starting torque database and denoted as Torr 1, the Torr and the Torr 1 are two adjacent first starting torque data, the difference value of the Torr and the Torr 1 is calculated, if the difference value of the Torr and the Torr 1 is larger than a preset first starting torque threshold, the drilling jam risk is predicted to be larger, and optionally, the first starting torque threshold is 5 kN.m.

(2) If the current working condition is the second working condition, acquiring second starting torque data and corresponding third starting torque data, judging whether the difference value between the second starting torque data and the corresponding third starting torque data is larger than a preset second starting torque threshold value, judging whether the difference value between bit position information corresponding to the occurrence moment of the second starting torque data and bit position information corresponding to the occurrence moment of the third starting torque data is smaller than or equal to a preset distance threshold value, and judging that the blocking risk exists if the difference value is smaller than or equal to the preset distance threshold value; the third starting torque data are starting torque data under the first working condition, and in the stored starting torque data under the first working condition, the difference value between the bit position information corresponding to the third starting torque data at the occurrence time and the bit position information corresponding to the second starting torque data at the occurrence time is the smallest.

If the current working condition is the second working condition, the second starting torque number obtained under the current working condition is denoted as Torr, the value of bit position information corresponding to the moment is denoted as Bd, standard starting torque data (first starting torque data) corresponding to bit position information closest to Bd is obtained from a standard starting torque database, the third starting torque data is denoted as Torr 2, the bit position information corresponding to the third starting torque data is denoted as Bds2 correspondingly, the difference between Bds2 and Bd and the difference between Torr 2 and Torr are calculated, if the absolute value of the difference between Bds2 and Bd is smaller than or equal to a preset distance threshold, in other words, the distance between the bit position corresponding to the second starting torque and the bit position corresponding to the third starting torque is smaller than or equal to the preset distance threshold, and the difference between Torr 2 and Torr is larger than the preset second starting torque threshold, so that the bit is easy to block at the position, the risk of blocking is indicated as being larger, and the preset distance threshold is 200 m.5 kN.

If the absolute value of the difference value between Bds2 and Bd is larger than the preset distance threshold value, the comparison is not performed, and the monitoring is ended.

In some alternative embodiments, if the card blocking risk is determined to exist, the card blocking risk is pre-warned.

Specifically, the current system time is taken as the early warning time, the data such as well depth data, bit position information, torque maximum value and the like are provided for front end display, and early warning and warning are carried out, for example, an early warning interface is shown in the following table 3:

table 3:

embodiment two:

the first embodiment of the invention provides a method for judging drilling blocking risk, the flow of which is shown in a reference figure 4, comprising the following steps:

1. acquiring preprocessed real-time data, wherein the real-time data comprises well depth data, bit position information, rotating disc rotating speed data, hook load data and torque data;

2. judging whether the rotating speed data of the turntable rises from 0 or not, and knowing a time t greater than or equal to 1;

3. if so, judging whether the turntable is continuously in a static state within the time interval of [ t-30s, t ] and is in the range of [ t, t+20s ]

In the time interval, the turntable is continuously in an open state, and in the [ t, t+20s ] time interval, the hook load data are all more than 500kN, if not, the monitoring is finished;

4. if yes, acquiring maximum torque data in a time interval of [ t-10s, t+60s ], and recording the maximum torque data as Torr 0; if not, ending the monitoring;

5. judging whether the current working condition is a first working condition or a second working condition in a [ t-10s, t+60s ] time interval according to well depth data and bit position information;

6. if the current working condition is the first working condition, the acquired maximum torque data is saved, a standard starting torque database is established, and standard starting torque data in the standard starting torque database is recorded as Tors0;

7. and comparing the Torr 0 with standard starting torque data Torr 0 (selecting standard starting torque data corresponding to the bit position closest to the current bit position from a standard starting torque database), judging whether the difference between the Torr 0 and the Torr 0 is larger than 5kN, if so, judging that the maximum starting torque is abnormal, prompting early warning information, ending the current monitoring, and if not, ending the current monitoring.

Based on the same inventive concept, the embodiment of the invention further provides a device for judging the risk of blocking the drilling well, the structure of the device is shown in fig. 5, and the device comprises:

a first judging module 61, configured to acquire drilling data of a target well in real time, and judge whether a moment when the turntable is initially opened exists according to the drilling data;

a second judging module 62, configured to judge whether the drilling data in the first preset time range before and after the initial opening time of the turntable meets a preset detection condition if the drilling data exists;

the determining module 63 is configured to determine, if the current working condition and starting torque data under the current working condition according to drilling data in a second preset time range before and after the initial opening time of the turntable are met;

and a third judging module 64, configured to judge whether a card blocking risk exists under the current working condition according to the starting torque data under the current working condition.

The specific manner in which the respective modules perform the operations of the above-described apparatus for determining the risk of stuck well in the above-described embodiments has been described in detail in the embodiments related to the method, and will not be described in detail herein.

A specific example is used for describing the method for judging the drilling blocking risk, and the specific implementation flow of the method for judging the drilling blocking risk is as follows:

1. setting the length of a time window to be 60s, acquiring drilling data of a well A in real time to obtain a second starting torque in the tripping process, referring to FIG. 6, FIG. 6 shows that the tripping is performed in the [22:13:20, 22:19:20] time period, a kick-off rotary table appears at about 2023-05-30:22:16:50, and all parameters near the moment meet the maximum starting torque blocking early warning monitoring condition, wherein the well depth is 6275m, the bit position is 4944.68m, and the torque maximum value is 14.99 kN.m;

2. standard starting torque recorded during drilling process, and obtaining and '4944.68 m' from standard starting torque database "

The data of the quasi-starting torque corresponding to the closest bit position, namely the third starting torque data, refer to fig. 7, the bit position closest to "4944.68m" is 4943m, and the standard starting torque data corresponding to the bit position is 9.3kn·m;

3. comparing the difference value of the second starting torque and the third starting torque (standard starting torque data) with the value of more than 5kN, indicating that the maximum starting torque has larger blocking risk, sending out early warning information, and referring to the early warning interface shown in the following table 4;

table 4:

1. setting the length of a time window to be 60s, acquiring drilling data of a well B in real time to obtain a first starting torque in the drilling process, referring to FIG. 8, FIG. 8 shows that a beginning-open rotary table appears at about 2023-04-11:07:17:00 in a drilling working condition in a [07:14:00, wherein various parameters near the moment meet the maximum starting torque blocking early warning monitoring condition, and the well depth is 6246m, the bit position is 6230m and the torque maximum value is 24.4 kN.m;

2. the standard starting torque recorded in the drilling process is obtained from a standard starting torque database, data of the quasi-starting torque corresponding to the bit position closest to 6230m is obtained, and referring to fig. 9, the bit position closest to 6230m is 6202m, and the standard starting torque data corresponding to the bit position is 13.5 kn.m;

3. comparing the difference value of the two standard starting torques, which is larger than 5kN, indicating that the maximum starting torque is larger in blocking risk, sending out early warning information, and referring to the following table 5 for an early warning interface:

table 5:

based on the same inventive concept, the embodiment of the invention also provides a drilling blocking risk early warning system, which comprises: a server and a terminal;

the terminal is used for displaying existing card blocking risk information.

Based on the same inventive concept, an embodiment of the present invention further provides a computing device, including: the drilling well blocking risk judging method is realized when the processor executes the program.

Based on the same inventive concept, the embodiment of the invention also provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions realize the method for judging the risk of drilling blocking when being executed by a processor.

Based on the same inventive concept, the embodiment of the invention also provides a computer program product, wherein the computer program product comprises a computer program, and the judgment method of the drilling blocking risk is realized when the computer program is executed by a processor.

Unless specifically stated otherwise, terms such as processing, computing, calculating, determining, displaying, or the like, may refer to an action and/or process of one or more processing or computing systems, or similar devices, that manipulates and transforms data represented as physical (e.g., electronic) quantities within the processing system's registers or memories into other data similarly represented as physical quantities within the processing system's memories, registers or other such information storage, transmission or display devices. Information and signals may be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referenced throughout the above description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

It should be understood that the specific order or hierarchy of steps in the processes disclosed are examples of exemplary approaches. Based on design preferences, it is understood that the specific order or hierarchy of steps in the processes may be rearranged without departing from the scope of the present disclosure. The accompanying method claims present elements of the various steps in a sample order, and are not meant to be limited to the specific order or hierarchy presented.

In the foregoing detailed description, various features are grouped together in a single embodiment for the purpose of streamlining the disclosure. This method of disclosure is not to be interpreted as reflecting an intention that the claimed embodiments of the subject matter require more features than are expressly recited in each claim. Rather, as the following claims reflect, invention lies in less than all features of a single disclosed embodiment. Thus the following claims are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate preferred embodiment of this invention.

Those of skill would further appreciate that the various illustrative logical blocks, modules, circuits, and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.

The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in an ASIC. The ASIC may reside in a user terminal. The processor and the storage medium may reside as discrete components in a user terminal.

For a software implementation, the techniques described herein may be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described herein. These software codes may be stored in memory units and executed by processors. The memory unit may be implemented within the processor or external to the processor, in which case it can be communicatively coupled to the processor via various means as is known in the art.

The foregoing description includes examples of one or more embodiments. It is, of course, not possible to describe every conceivable combination of components or methodologies for purposes of describing the aforementioned embodiments, but one of ordinary skill in the art may recognize that many further combinations and permutations of various embodiments are possible. Accordingly, the embodiments described herein are intended to embrace all such alterations, modifications and variations that fall within the scope of the appended claims. Furthermore, as used in the specification or claims, the term "comprising" is intended to be inclusive in a manner similar to the term "comprising," as interpreted when employed as a transitional word in a claim. Furthermore, any use of the term "or" in the specification of the claims is intended to mean "non-exclusive or".

Claims

1. The method for judging the risk of drilling blocking is characterized by comprising the following steps:

acquiring drilling data of a target well in real time, and judging whether a primary opening moment of a turntable exists or not according to the drilling data;

if so, judging whether drilling data in a first preset time range before and after the initial opening time of the turntable meets preset detection conditions or not;

if yes, determining the current working condition and starting torque data under the current working condition according to drilling data in a second preset time range before and after the initial opening time of the turntable;

and judging whether the blocking risk exists under the current working condition according to the starting torque data under the current working condition.

2. The method of claim 1, wherein the drilling data comprises rotary table rotational speed data;

3. The method of claim 2, wherein the drilling data comprises hook load data;

the detection conditions include:

The rotating speed data of the rotating disk in a fourth preset time range after the primary opening time of the rotating disk are all larger than or equal to the second rotating speed threshold value; and the hook load data in the fourth preset time range after the initial opening time of the turntable are all larger than the preset hook load threshold value.

4. The method of claim 3, wherein determining whether drilling data within a first predetermined time frame before and after the initial rotational speed of the rotary table meets a pre-established detection condition comprises:

5. The method of claim 1, wherein the drilling data comprises well depth data, bit position information, and torque data;

6. The method of claim 5, wherein the determining whether the risk of blocking exists in the current working condition according to the starting torque data in the current working condition comprises:

7. The method of any of claims 1-6, wherein if it is determined that there is a risk of card blockage, the method further comprises:

and carrying out early warning on the card blocking risk.

8. The utility model provides a well drilling hinders judgment device of card risk which characterized in that includes:

9. The utility model provides a well drilling hinders early warning system of card risk which characterized in that includes: a server and a terminal;

the server is used for executing the method for judging the risk of drilling blocking according to any one of claims 1-7;

the terminal is used for displaying existing card blocking risk information.

10. A computing device, comprising: the drilling card risk judging method comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the processor realizes the drilling card risk judging method according to any one of claims 1-7 when executing the program.

11. A computer storage medium, wherein computer executable instructions are stored in the computer storage medium, and when the computer executable instructions are executed by a processor, the method for determining risk of drilling choke according to any one of claims 1-7 is implemented.

12. A computer program product, characterized in that it comprises a computer program which, when executed by a processor, implements the method for determining the risk of stuck well according to any one of claims 1-7.