CN218324794U - Drilling fluid parameter while-drilling automatic measuring system - Google Patents

Abstract

The application relates to a drilling fluid parameter is along with boring automatic measurement system, includes: the first measuring device is arranged at the tail end of the guide pipe and used for measuring the flow of the drilling fluid in the guide pipe; the second measuring device is arranged in the metering tank and is used for measuring the liquid level of the drilling fluid in the metering tank; the third measuring device is arranged in the conventional tank and used for measuring the drilling fluid level in the conventional tank; and the fourth measuring device is arranged in the conventional tank and is used for measuring the density of the drilling fluid in the conventional tank. According to the arrangement, automatic measurement while drilling can be achieved, drilling accidents caused by parameter lag are avoided, the measurement result is more accurate and the precision is high, the occurrence of situations such as reading errors and data unreal in the manual measurement process is avoided, the structure is simple, the installation is convenient, and the skill training cost of workers is saved.

Description

Drilling fluid parameter while-drilling automatic measuring system

Technical Field

The application relates to the technical field of drilling fluid parameter measurement, in particular to an automatic drilling fluid parameter measurement while drilling system.

Background

The performance and parameters of the drilling fluid in the drilling process can directly reflect the actual working conditions of the underground well. The outlet flow of the drilling fluid can reflect the underground leakage condition in the drilling process, and overflow and blowout accidents are early warned; the liquid level height of the drilling fluid metering tank can reflect whether well collapse, well leakage or formation micro leakage and the like are caused by suction pressure or exciting pressure in the tripping process; the real-time measurement of the drilling fluid density can feed back the working condition of the drilling fluid solid control equipment, the real pressure condition of the bottom hole and the like in time. Therefore, the flow change at the position of a drilling fluid guide pipe needs to be observed in real time by a job worker and a mud worker in the drilling process and the tripping process, and the liquid level height in the drilling fluid tank and the density of the drilling fluid are measured. On one hand, the labor intensity of workers can be greatly increased by frequent and repeated measurement; on the other hand, the manual measurement mode has parameter lag, so that underground complex conditions cannot be fed back and warned in time, and meanwhile, multiple times of data measurement may cause the occurrence of conditions such as large error, data counterfeiting and untimely measurement, so that great potential safety hazards exist.

Therefore, how to solve the problems that the existing drilling fluid parameter measurement needs real-time manual measurement by workers, the labor intensity is high and the error is large is a key technical problem to be solved by the technicians in the field.

SUMMERY OF THE UTILITY MODEL

In order to overcome the problems in the related art at least to a certain extent, the application aims to provide the drilling fluid parameter while-drilling automatic measurement system, which can solve the problems that the existing drilling fluid parameter measurement needs real-time manual measurement of workers, the labor intensity is high and the error is large. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the application are described in detail in the following.

The application provides a drilling fluid parameter is along with boring automatic measuring system, includes:

the first measuring device is arranged at the tail end of the guide pipe and used for measuring the flow of the drilling fluid in the guide pipe;

the second measuring device is arranged in the metering tank and used for measuring the drilling fluid liquid level in the metering tank;

the third measuring device is arranged in the conventional tank and is used for measuring the drilling fluid liquid level in the conventional tank;

and the fourth measuring device is arranged in the conventional tank and is used for measuring the density of the drilling fluid in the conventional tank.

Preferably, the first measuring device is provided as an ultrasonic flow meter, comprising:

the two transducers are oppositely arranged on two sides of the flow guide pipe and are arranged at intervals along the axial direction of the flow guide pipe;

a data processing module in communication with the transducer.

Preferably, the first measuring device further comprises a first display instrument arranged on the outer wall of the guide pipe, and the data processing module is arranged on the first display instrument.

Preferably, the second measuring device is provided as a radar level gauge comprising:

the detector is arranged at the top of the metering tank and faces the liquid level of the drilling fluid;

and the second display instrument is in communication connection with the detector and is used for displaying the drilling fluid liquid level in the metering tank.

Preferably, the third measuring device is configured as a magnetic float level meter, including:

the catheter is internally provided with a plurality of magnetic reed switches;

the first floating ball is arranged in the guide pipe in a sliding manner, and a magnet matched with the magnetic reed switch is arranged in the first floating ball;

and the third display instrument is in communication connection with the magnetic reed switch and is used for displaying the drilling fluid level in the conventional tank.

Preferably, the third measuring device further includes:

the upper limit and the lower limit are respectively arranged on the catheter, and the first floating ball is positioned between the upper limit and the lower limit;

and the alarm is in communication connection with the upper limit and the lower limit and is used for sending out a limit alarm of the first floating ball.

Preferably, the third measuring device is provided as a magnetic flip level gauge comprising:

the side part of the liquid level panel is rotatably provided with a plurality of turnover plates, and turnover magnets are arranged on the turnover plates;

the connecting rod penetrates through the liquid level panel, one end of the connecting rod is provided with a magnetic floater, and the other end of the connecting rod is provided with a floating ball;

the turnover plates are arranged along the extending direction of the connecting rod, and the magnetic floaters are matched with the turnover magnets and can drive the turnover plates to turn over.

Preferably, the fourth measuring device is provided as a differential pressure densitometer comprising:

the device comprises a guide rod, a pressure diaphragm, a pressure sensor and a controller, wherein an upper measuring point and a lower measuring point which are provided with the pressure diaphragm are arranged on the guide rod at intervals;

and the fourth display instrument is in communication connection with the upper measuring point and the lower measuring point and is used for displaying the drilling fluid density in the conventional tank.

Preferably, the measuring device further comprises a monitoring device, and the monitoring device is in communication connection with the first measuring device, the second measuring device, the third measuring device and the fourth measuring device.

The technical scheme provided by the application can comprise the following beneficial effects:

the automatic measurement while drilling can be realized, drilling accidents caused by parameter lag are avoided, the measurement result is more accurate and the precision is high, the occurrence of the conditions of reading errors, unreal data and the like in the manual measurement process is avoided, the structure is simple, the installation is convenient, and the skill training cost of workers is saved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and, together with the description, serve to explain the principles of the application.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a block diagram of the present drilling fluid parameter while drilling automatic measurement system, according to some exemplary embodiments;

FIG. 2 is a block diagram illustrating a first measurement device according to some exemplary embodiments;

FIG. 3 is a schematic diagram of a first measurement device shown in accordance with some exemplary embodiments;

FIG. 4 is a schematic diagram of a second measurement device shown in accordance with some exemplary embodiments;

FIG. 5 is a block diagram of a magnetic float level gauge according to some exemplary embodiments;

FIG. 6 is a block diagram of a magnetic rollover level gauge according to some exemplary embodiments;

FIG. 7 is a block diagram illustrating a fourth measurement device according to some exemplary embodiments.

In the figure: 1. a first measuring device; 2. a second measuring device; 3. a third measuring device; 4. a fourth measuring device; 11. a transducer; 12. a first display instrument; 31. a conduit; 32. a first floating ball; 33. a third display instrument; 34. upper limiting; 35. lower limiting; 36. a liquid level panel; 37. a turnover plate; 38. a connecting rod; 39. a magnetic float; 30. a second floating ball; 41. a guide bar; 42. an upper measuring point; 43. a lower measuring point; 44. and a fourth display instrument.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus or methods consistent with aspects of the present application.

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Hereinafter, embodiments will be described with reference to the drawings. The embodiments described below do not limit the scope of the invention described in the claims. The entire contents of the configurations shown in the following embodiments are not limited to those required as solutions of the inventions described in the claims.

Referring to fig. 1 to 7, the present embodiment provides an automatic measurement while drilling system for drilling fluid parameters, which includes a first measurement device 1, a second measurement device 2, a third measurement device 3, and a fourth measurement device 4.

The first measuring device 1 is arranged at the tail end of the flow guide pipe and used for measuring the flow of drilling fluid in the flow guide pipe, real-time monitoring of underground information can be achieved through real-time monitoring of circulating instantaneous flow of the drilling fluid, and underground working conditions such as well leakage, well collapse and well kick can be found in time so as to make preparation and treatment measures in time.

The second measuring device 2 is arranged in the measuring tank and used for measuring the drilling fluid liquid level in the measuring tank; the third measuring device 3 is arranged in the conventional tank for measuring the drilling fluid level in the conventional tank. The liquid level in the measuring tank is measured in real time to form a liquid level change curve, and whether the liquid level change in the tank is normal or not can be reflected by combining the drilling working condition, the well body structure and the well drilling combination, so that the underground conditions such as well kick, well leakage and the like can be found in time.

The fourth measuring device 4 is arranged in the conventional tank and used for measuring the density of the drilling fluid in the conventional tank, and the working condition of the drilling fluid solid control equipment and the real pressure condition of the well bottom can be fed back in time through a density change curve by monitoring the density of the drilling fluid in real time, so that the complicated underground accidents caused by inaccurate measured data are avoided.

It should be noted that, in the drilling process, the drilling fluid returns to the well head from the annular space, flows to the vibrating screen through the guide pipe, and then flows to the metering tank through the vibrating screen. The drilling fluid flows into conventional jar by the export that metering tank's bottom was seted up, is provided with the agitator in the conventional jar, and density is comparatively balanced is convenient for measure, and the drilling fluid flows into drilling equipment by conventional jar at last, and then forms the circulation of drilling fluid.

According to the arrangement, automatic measurement while drilling can be achieved, drilling accidents caused by parameter lag are avoided, the measurement result is more accurate and the precision is high, the occurrence of situations such as reading errors and data unreal in the manual measurement process is avoided, the structure is simple, the installation is convenient, and the skill training cost of workers is saved.

In order to improve the automation level, the automatic drilling fluid parameter measurement while drilling system further comprises a monitoring device, and the monitoring device is in communication connection with the first measuring device 1, the second measuring device 2, the third measuring device 3 and the fourth measuring device 4.

Like this, can with measured data with the teletransmission of electric signal mode to monitoring devices, unified allotment control, moreover, measured data's teletransmission and process record, all data information ization management, the fine management of well drilling process parameter control can be realized to the remote recording parameter change condition, reduces the incidence of accident in the pit, has guaranteed the accuracy of data, is favorable to strengthening the safety monitoring of drilling team and fine management, and well team HSE management system is sound.

In particular, the first measuring device 1, the second measuring device 2, the third measuring device 3 and the fourth measuring device 4 are also provided with a remote transmitting module, such as WiFi or bluetooth.

In some embodiments, the first measuring device 1 is configured as an ultrasonic flow meter, and includes two transducers 11 and a data processing module, where the two transducers 11 are oppositely disposed on two sides of the flow conduit and are spaced apart from each other along the axial direction of the flow conduit; the data processing module is communicatively connected to the transducer 11.

As shown in fig. 2 and 3, the two transducers 11 transmit and receive sound wave pulses simultaneously, and when the flow rate is zero, the round trip time of the sound wave between the two transducers 11 is the same; when the drilling fluid begins to flow, the propagation time of the sound wave in the downstream direction is short, and the propagation time in the upstream direction is long. The greater the difference in the propagation times of the two ultrasonic pulses, the greater the flow. From the measured forward and reverse flow time differences, the pipeline fluid flow can be measured by the following equation.

In the formula: Δ t — the time difference, s, between the signals transmitted and received by the two transducers 11 in forward and reverse flow; l is the distance between the two transducers 11, m; theta-the included angle between the two transducers 11 and the central line of the pipeline is degree; v is the drilling fluid flow rate, m/s; c-speed of light, m/s.

Specifically, the first measuring device 1 further includes a first display instrument 12 disposed on the outer wall of the draft tube, and the data processing module is disposed on the first display instrument 12.

Therefore, the drilling fluid flow monitoring can timely find underground complex conditions such as lost circulation, overflow, well collapse and the like, the circulating instantaneous flow of the drilling fluid is monitored in real time through the ultrasonic flow meter and is remotely transmitted to the computer end, the underground information can be monitored in real time, underground working conditions such as the lost circulation, the well collapse and the well kick are timely found, and therefore preparation and treatment measures are timely made.

In some embodiments, the second measuring device 2 is provided as a radar level gauge comprising a probe and a second display meter. The detector is arranged at the top of the metering tank and faces the liquid level of the drilling fluid; and the second display instrument is in communication connection with the detector and is used for displaying the drilling fluid level in the measuring tank.

Specifically, choose non-contact radar level gauge for use, do not have the agitator in the metering tank, the liquid level can not produce undulantly, uses the radar level gauge to carry out real-time accurate measurement to the liquid level to with measuring result teletransmission to computer terminal and take notes, also synchronous transmission to driller's control cabinet.

The radar liquid level meter consists of a detector and a second display instrument. The radar liquid level meter transmits ultra-high frequency electromagnetic waves or microwaves transmitted at the speed of light to the liquid level of drilling fluid in the metering tank through the antenna, the electromagnetic waves are reflected back to be received by the detector after contacting the liquid level, the height between the antenna and the liquid level is determined by measuring the time delay from the transmitted waves to the reflected waves, and the liquid level of the drilling fluid is further obtained through the following formula.

In the formula: Δ t — time from emission of the detector to reception of the signal, s; h, the distance from the detector to the liquid level of the drilling fluid, m; c-speed of light, m/s.

Like this, can realize the real-time measurement to the interior liquid level of jar through using the radar level gauge in the metering tank to through computer teletransmission record liquid level change curve, combine to creep into operating mode, well body structure and well drilling combination and can reflect whether the interior liquid level change of jar is normal, can in time discover downhole conditions such as kick, lost circulation.

In some preferred embodiments, the third measuring device 3 is configured as a magnetic float level meter, and includes a conduit 31, a first float 32 and a third display instrument 33. Wherein, a plurality of magnetic reed switches are arranged in the conduit 31; the first floating ball 32 is slidably arranged on the guide pipe 31 and is internally provided with a magnet matched with the magnetic reed switch; and a third display instrument 33 is in communication connection with the magnetic reed switch and is used for displaying the drilling fluid level in the conventional tank.

Thus, based on the principle of buoyancy and static magnetic field, the liquid level measurement is performed by the change of the electric quantity caused by the change of the position of the first floating ball 32. The first floating ball 32 with the magnet floats up and down along with the change of the well drilling fluid level on the guide pipe 31, the magnet in the first floating ball 32 and the magnetic reed switch at the corresponding position are in attraction action, so that the number of the total resistance constant value resistors of the access circuit is changed, the transmitter converts the changed resistance signals into 4-20 mA current signals to be output, and the corresponding fluid level position can be calculated according to the current.

Furthermore, the third measuring device 3 further comprises an upper limit 34, a lower limit 35 and an alarm. The upper limit 34 and the lower limit 35 are respectively arranged on the conduit 31, and the first floating ball 32 is positioned between the upper limit 34 and the lower limit 35; the alarm is in communication connection with the upper limit 34 and the lower limit 35 and is used for giving out a limit alarm of the first floating ball 32.

Thus, an alarm is set on the third display instrument 33, and when the liquid level in the tank reaches the upper limit and the lower limit, the alarm is given to remind workers.

Of course, the third measuring device 3 may also be provided as a magnetic flip level meter, comprising a level panel 36 and a connecting rod 38. A plurality of turnover plates 37 are rotatably arranged on the side part of the liquid level panel 36, and turnover magnets are arranged on the turnover plates 37; the connecting rod 38 is arranged in the liquid level panel 36 in a penetrating way, one end of the connecting rod 38 is provided with a magnetic floater 39, and the other end is provided with a second floater 30; the plurality of turning plates 37 are arranged along the extending direction of the connecting rod 38, and the magnetic float 39 is engaged with the turning magnet and can drive the turning plates 37 to turn.

Specifically, when the liquid level of the drilling fluid in the tank rises and falls, the magnetic floater 39 in the liquid level panel 36 also rises and falls, the permanent magnetic steel in the magnetic floater 39 is transmitted to the magnetic turning plate through magnetic coupling, the turning magnet on the magnetic turning plate is close to or far away from the magnetic floater 39, so that the magnetic turning plate opposite to the magnetic floater 39 is turned, other positions are not turned, the actual height of the drilling fluid in the tank is acquired through the turned magnetic turning plate, and clear indication of the liquid level is realized.

Therefore, the magnetic floating ball liquid level meter and the magnetic turnover liquid level meter are matched for use, so that the liquid level of the drilling fluid can be clearly displayed on site and the change of the liquid level in the metering tank can be remotely monitored. Whether the liquid level change is normal when the normal drilling is started or stopped can be reflected through the liquid level change curve, the drilling working condition, the well body structure and the drilling combination, and the underground conditions such as well kick, well leakage and the like can be found in time.

In some embodiments, the fourth measuring device 4 is a differential pressure densitometer, and includes a guide rod 41 and a fourth display instrument 44, wherein an upper measuring point 42 and a lower measuring point 43 with pressure diaphragms are arranged on the guide rod 41 at intervals; a fourth display gauge 44 is in communication with the upper measurement point 42 and the lower measurement point 43 for displaying the drilling fluid density in the conventional tank.

According to the Pascal principle, the measurement of the density of the drilling fluid is converted into the measurement of the pressure in the fluid. The current drilling fluid density is calculated according to the following formula by measuring the pressure values of two pressure measuring points in the drilling fluid at a certain vertical distance and acquiring a differential pressure value through a pressure sensor.

ΔP＝P _{Lower part} -P _{On the upper part} ＝ρgh

Therefore, the density result can be displayed on site by the fourth display instrument 44, the pressure of the upper measuring point 43 and the lower measuring point 43 can be converted into an electric signal by the electric remote transmission device and transmitted to the monitoring device, the monitoring device can automatically record the density change condition of the drilling fluid, and further, the working condition of the drilling fluid solid control equipment and the real pressure condition of the bottom of the well can be timely fed back by the density change curve through real-time monitoring and remote transmission recording of the drilling fluid density, so that the complicated underground accidents caused by inaccurate measured data can be avoided.

It should be noted that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like as used herein refer to an orientation or positional relationship indicated in the drawings for convenience and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description herein, it is also noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as the case may be, by those of ordinary skill in the art.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments. The multiple schemes provided by the application comprise basic schemes of the schemes, are independent of each other and are not restricted to each other, but can be combined with each other under the condition of no conflict, so that multiple effects are achieved together.

While embodiments of the present application have been shown and described above, it is to be understood that the above embodiments are exemplary and not to be construed as limiting the present application, and that changes, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims (9)

1. An automatic measurement-while-drilling system for drilling fluid parameters, comprising:

the first measuring device (1) is arranged at the tail end of the guide pipe and used for measuring the flow of the drilling fluid in the guide pipe;

the second measuring device (2) is arranged in the metering tank and used for measuring the drilling fluid liquid level in the metering tank;

the third measuring device (3) is arranged in the conventional tank and is used for measuring the drilling fluid level in the conventional tank;

and the fourth measuring device (4) is arranged in the conventional tank and is used for measuring the density of the drilling fluid in the conventional tank.

2. The automatic measurement while drilling system of drilling fluid parameters according to claim 1, wherein the first measuring device (1) is provided as an ultrasonic flow meter comprising:

the two energy converters (11) are oppositely arranged on two sides of the flow guide pipe and are arranged at intervals along the axial direction of the flow guide pipe;

a data processing module communicatively connected with the transducer (11).

3. The automatic drilling-while-drilling measurement system for drilling fluid parameters is characterized in that the first measurement device (1) further comprises a first display instrument (12) arranged on the outer wall of the guide pipe, and the data processing module is arranged on the first display instrument (12).

4. The automatic drilling fluid parameter measurement while drilling system according to claim 1, wherein the second measuring device (2) is provided as a radar level gauge comprising:

the detector is arranged at the top of the metering tank and faces the liquid level of the drilling fluid;

and the second display instrument is in communication connection with the detector and is used for displaying the drilling fluid liquid level in the measuring tank.

5. The automatic measurement while drilling system of drilling fluid parameters according to claim 1, wherein the third measuring device (3) is provided as a magnetic float level meter comprising:

a conduit (31) in which a plurality of reed switches are disposed;

the first floating ball (32) is arranged in the guide pipe (31) in a sliding manner, and a magnet matched with the magnetic reed switch is arranged in the first floating ball;

and the third display instrument (33) is in communication connection with the magnetic reed switch and is used for displaying the drilling fluid level in the conventional tank.

6. The automatic measurement while drilling system of drilling fluid parameters according to claim 5, characterized in that the third measuring device (3) further comprises:

an upper limit (34) and a lower limit (35) which are respectively arranged on the conduit (31), wherein the first floating ball (32) is positioned between the upper limit (34) and the lower limit (35);

and the alarm is in communication connection with the upper limit (34) and the lower limit (35) and is used for giving out a limit alarm of the first floating ball (32).

7. The automatic drilling fluid parameter measurement while drilling system according to claim 1, wherein the third measuring device (3) is provided as a magnetic flip level gauge comprising:

the side part of the liquid level panel (36) is rotatably provided with a plurality of turnover plates (37), and turnover magnets are arranged on the turnover plates (37);

the connecting rod (38) penetrates through the liquid level panel (36), one end of the connecting rod is provided with a magnetic floater (39), and the other end of the connecting rod is provided with a second floater (30);

the turnover plates (37) are arranged along the extending direction of the connecting rod (38), and the magnetic floats (39) are matched with the turnover magnets and can drive the turnover plates (37) to turn over.

8. The automatic drilling fluid parameter measurement while drilling system according to claim 1, wherein the fourth measuring device (4) is provided as a differential pressure densitometer comprising:

the device comprises a guide rod (41), wherein an upper measuring point (42) and a lower measuring point (43) which are provided with pressure diaphragms are arranged on the guide rod (41) at intervals;

a fourth display meter (44) in communication with the upper measurement point (42) and the lower measurement point (43) for displaying the drilling fluid density within the conventional tank.

9. The automatic drilling fluid parameter measurement while drilling system according to claim 1, further comprising a monitoring device, wherein the monitoring device is in communication connection with the first measuring device (1), the second measuring device (2), the third measuring device (3) and the fourth measuring device (4).

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