Drilling fluid parameter on-line testing device

Abstract

The utility model discloses a drilling fluid parameter on-line testing device which comprises an electric control system, a cabinet body and a detection mechanism arranged in the cabinet body, and the detection mechanism comprises a drilling fluid inlet pipe, a drilling fluid outlet pipe, a detection pipeline and a circulation pipeline. The detection pipeline is provided with a detection module and a two-position three-way electromagnetic ball valve; the detection module comprises a pH detection module, a conductivity detection module and a demulsification voltage detection module; the method comprises the following steps that S1, the electric control system detects whether a detection task exists or not; s2, when the detection task does not exist, the electric control system controls the circulation pipeline to be conducted, and the drilling fluid is discharged through a drilling fluid outlet pipe after passing through the circulation pipeline; s3, when a detection task exists, the detection pipeline is conducted, the drilling fluid enters the detection pipeline and passes through the pH detection module, the conductivity detection module or the demulsification voltage detection module, and the well fluid is discharged through a drilling fluid outlet pipe; according to the device, through integration of a detection system, the purpose of automatically detecting multiple parameters of the drilling fluid is achieved, and the labor cost is greatly saved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the drilling fluid parameter on -line detection technical field, concretely relates to a drilling fluid parameter on -line testing device. BACKGROUND

[0002] Drilling fluid is the general term of various circulating fluids in the drilling process to meet the needs of drilling work with its multiple functions, and is also an indispensable part of drilling work; at the same time, the drilling fluid parameter requirements are also different in different drilling work, and the parameters of drilling fluid generally include drilling fluid pH value, drilling fluid conductivity and drilling fluid demulsification voltage.

[0003] The pH value of drilling fluid filtrate is generally used to represent the acidity and alkalinity of drilling fluid, and since the strength of acidity and alkalinity is directly related to the dispersion degree of clay particles in drilling fluid, therefore, the acidity and alkalinity will greatly affect the viscosity, shear force and other performance parameters of drilling fluid; the required pH value range of different types of drilling fluid is different. In practical application, the pH value of most drilling fluids is required to be controlled between 8-11, that is, to maintain a weak alkaline environment; the main reason for maintaining a weak alkaline environment of drilling fluid is to reduce the corrosion of drilling tools, to prevent the damage of drilling tools and casing caused by hydrogen embrittlement, and to inhibit the dissolution of calcium and magnesium salts in drilling fluid; at the same time, a considerable amount of treating agent needs to be fully effective in alkaline medium.

[0004] The conductivity of drilling fluid depends on the composition and concentration of drilling fluid, and generally speaking, since oil-based drilling fluid contains a large amount of organic solvents and oil substances, the conductivity of these substances is relatively poor, so the conductivity is low; the main purpose of measuring the conductivity of drilling fluid is to correct the conductivity value of the formation during logging, so as to judge the lithology of rock and oil and gas water display.

[0005] Drilling fluid is generally divided into oil-based drilling fluid and water-based drilling fluid, and for commonly used oil-based drilling fluid, emulsion voltage is an important index affecting its performance; demulsification voltage refers to the ability of oil-based drilling fluid to resist dehydration of dispersed phase and form foam, and is an important index of physical properties of drilling fluid; high demulsification voltage can improve the stability and safety of drilling fluid, and low demulsification voltage will make the drilling process more unstable and unsafe, therefore, when oil-based drilling fluid is prepared, the reasonable range of demulsification voltage must be controlled to ensure the performance and safety of drilling fluid.

[0006] But now in the drilling engineering, the field usually uses pH test paper to measure the pH value of the drilling fluid; the drilling fluid conductivity detection is completed by the conductivity analyzer, and the demulsification voltage of the drilling fluid is detected by the electrical stability tester; but whether using pH meter, conductivity analyzer or electrical stability tester, the detection equipment is laboratory equipment, the operation is complicated, a large amount of manual work is spent, and the detected data cannot be transmitted to the decision maker in time, and the data timeliness is not high; therefore, a drilling fluid parameter testing device capable of quickly completing drilling fluid parameter detection and realizing rapid data transmission is urgently needed. The utility model discloses a kind of drilling fluid parameter testing devices, including shell, be connected to the shell, and be connected to the shell.

[0007] The utility model discloses a kind of drilling fluid parameter testing devices, including shell, be connected to the shell, and be connected to the shell.

[0008] The utility model discloses a kind of drilling fluid parameter testing devices, including shell, be connected to the shell, and be connected to the shell.

[0009] The drilling fluid parameter on-line testing device comprises an electric control system, a cabinet body and a detection mechanism arranged in the cabinet body, the detection mechanism comprises a drilling fluid inlet pipe, a drilling fluid outlet pipe, a detection pipeline and a circulation pipeline; the detection pipeline comprises a detection module and a two-position three-way electromagnetic ball valve for controlling the drilling fluid to enter the detection module, the detection module comprises a pH detection module, a conductivity detection module and a demulsification voltage detection module; the circulation pipeline is connected with the drilling fluid inlet pipe, the drilling fluid outlet pipe and the detection module through the two-position three-way electromagnetic ball valve; the pH detection module comprises a first two-position three-way electromagnetic ball valve, a pH detection assembly and a second two-position three-way electromagnetic ball valve, the input end of the first two-position three-way electromagnetic ball valve is connected with the output end of the drilling fluid inlet pipe, the output end of the first two-position three-way electromagnetic ball valve is connected with the input end of the pH detection assembly, and the output end of the pH detection assembly is connected with the input end of the second two-position three-way electromagnetic ball valve; the conductivity detection module comprises a third two-position three-way electromagnetic ball valve, a conductivity detection assembly and a fourth two-position three-way electromagnetic ball valve, the input end of the third two-position three-way electromagnetic ball valve is connected with the output end of the second two-position three-way electromagnetic ball valve, the output end of the third two-position three-way electromagnetic ball valve is connected with the input end of the conductivity detection assembly, and the output end of the conductivity detection assembly is connected with the input end of the fourth two-position three-way electromagnetic ball valve; the demulsification voltage detection module comprises a fifth two-position three-way electromagnetic ball valve, a demulsification voltage detection assembly and a sixth two-position three-way electromagnetic ball valve, the input end of the fifth two-position three-way electromagnetic ball valve is connected with the output end of the fourth two-position three-way electromagnetic ball valve, the output end of the fifth two-position three-way electromagnetic ball valve is connected with the input end of the demulsification voltage detection assembly, the output end of the demulsification voltage detection assembly is connected with the input end of the sixth two-position three-way electromagnetic ball valve, and the output end of the sixth two-position three-way electromagnetic ball valve is connected with the drilling fluid outlet pipe; the input end of the circulation pipeline is connected with the output ends of the first two-position three-way electromagnetic ball valve, the second two-position three-way electromagnetic ball valve, the third two-position three-way electromagnetic ball valve, the fourth two-position three-way electromagnetic ball valve, the fifth two-position three-way electromagnetic ball valve and the sixth two-position three-way electromagnetic ball valve in sequence, and the output end of the circulation pipeline is connected with the drilling fluid outlet pipe; the first two-position three-way electromagnetic ball valve, the second two-position three-way electromagnetic ball valve, the third two-position three-way electromagnetic ball valve, the fourth two-position three-way electromagnetic ball valve, the fifth two-position three-way electromagnetic ball valve and the sixth two-position three-way electromagnetic ball valve are signal-connected with the electric control system, and the electric control system realizes the passage control of the first two-position three-way electromagnetic ball valve, the second two-position three-way electromagnetic ball valve, the third two-position three-way electromagnetic ball valve, the fourth two-position three-way electromagnetic ball valve, the fifth two-position three-way electromagnetic ball valve and the sixth two-position three-way electromagnetic ball valve through wireless signals.

[0010] In the above device, it can be concluded that the pH detection module, the conductivity detection module and the demulsification voltage detection module in the detection pipeline cooperate through the two-position three-way electromagnetic ball valve and the circulation pipe, which can be regarded as being connected in parallel on the detection pipeline. By conducting different two-position three-way electromagnetic ball valves, the operation of the pH detection module, the conductivity module or the demulsification voltage detection module can be realized, and the related drilling fluid parameters can be obtained with improved detection efficiency.

[0011] The separate detection step can be realized by the following operation: by controlling the opening direction of the first two-position three-way electromagnetic ball valve and the second two-position three-way electromagnetic ball valve through the electric control system, the drilling fluid enters the pH detection module, and the third two-position three-way electromagnetic ball valve, the fourth two-position three-way electromagnetic ball valve, the fifth two-position three-way electromagnetic ball valve and the sixth two-position three-way electromagnetic ball valve are controlled to open, so that the drilling fluid flowing out of the pH detection module is discharged through the circulation pipeline and the drilling fluid outlet pipe, and the detection of the pH value of the drilling fluid is completed. Similarly, controlling different two-position three-way electromagnetic ball valves can complete the detection of different detection modules or multiple modules, so as to realize the purpose of timely and efficient detection of drilling fluid data.

[0012] Further, the drilling fluid circulating pump is arranged between the first two-position three-way electromagnetic ball valve and the drilling fluid inlet pipe, which is used to pump the drilling fluid through the drilling fluid inlet pipe. By arranging the drilling fluid circulating pump, the arrangement in the utility model is not limited by the placement, and the drilling fluid can be pumped at any position to complete the parameter detection of the drilling fluid.

[0013] Further, the pH detection assembly includes but is not limited to a pH detection electrode; the conductivity detection assembly includes but is not limited to a conductivity detection electrode; the demulsification voltage detection assembly includes but is not limited to a demulsification voltage detection electrode; it should be noted that the detection electrode is only a kind of device for obtaining data, and other detection devices can be replaced.

[0014] Further, the drilling fluid circulating pump is arranged near the side of the drilling fluid inlet pipe, and the drilling fluid inlet pipe is connected with the input end of the pre-filter, and the output end of the pre-filter is connected with the input end of the first two-position three-way electromagnetic ball valve. By arranging the pre-filter, the impurities mixed in the drilling fluid can be effectively separated, so that the subsequent detection is more accurate.

[0015] Further, the detection pipeline cleaning module is further provided, which comprises a cleaning liquid inlet pipe, a cleaning liquid outlet pipe and a two-position two-way electromagnetic ball valve for controlling the cleaning liquid to enter the detection pipeline, the two-position two-way electromagnetic ball valve is connected with the electronic control system and realizes the passage control of the two-position two-way electromagnetic ball valve by the electronic control system through wireless signals; the detection pipeline cleaning module is used to clean the detection pipeline after detection, so that the residual drilling fluid in the detection pipeline is effectively removed and the accuracy of subsequent detection is ensured.

[0016] Further, the detection pipeline cleaning module comprises a pH detection module cleaning assembly, the pH detection module cleaning assembly comprises a first two-position two-way electromagnetic ball valve and a second two-position two-way electromagnetic ball valve, the input end of the first two-position two-way electromagnetic ball valve is connected with the cleaning liquid wellhead pipe, the output end of the first two-position two-way electromagnetic ball valve is connected with the input end of the second two-position two-way electromagnetic ball valve through the pH detection component, and the output end of the second two-position two-way electromagnetic ball valve is connected with the cleaning liquid outlet pipe.

[0017] Further, the detection pipeline cleaning module comprises an electrical conductivity detection module cleaning assembly, the electrical conductivity detection module cleaning assembly comprises a third two-position two-way electromagnetic ball valve and a fourth two-position two-way electromagnetic ball valve, the input end of the third two-position two-way electromagnetic ball valve is connected with the cleaning liquid wellhead pipe, the output end of the third two-position two-way electromagnetic ball valve is connected with the input end of the fourth two-position two-way electromagnetic ball valve through the electrical conductivity detection component, and the output end of the fourth two-position two-way electromagnetic ball valve is connected with the cleaning liquid outlet pipe.

[0018] Further, the detection pipeline cleaning module comprises a demulsification voltage detection module cleaning assembly, the demulsification voltage detection module cleaning assembly comprises a fifth two-position two-way electromagnetic ball valve and a sixth two-position two-way electromagnetic ball valve, the input end of the fifth two-position two-way electromagnetic ball valve is connected with the cleaning liquid wellhead pipe, the output end of the fifth two-position two-way electromagnetic ball valve is connected with the input end of the sixth two-position two-way electromagnetic ball valve through the demulsification voltage detection component, and the output end of the sixth two-position two-way electromagnetic ball valve is connected with the cleaning liquid outlet pipe.

[0019] The detection pipeline cleaning module can realize the separate cleaning of any detection module in the detection pipeline through the cooperation of the two-position two-way electromagnetic ball valve and the electronic control system, and the detection precision is improved by avoiding the resource waste through simple setting.

[0020] Further, the electric control system comprises an electric control cabinet, a local server, a PC monitor, a PLC, a servo drive, a stepping drive and an ion detector arranged in the cabinet body, data interaction between the local server and the PLC and the PLC and the servo drive is realized through an industrial Ethernet, the I / O module of the PLC realizes control on components in the detection mechanism through wireless signals, the servo drive and the stepping drive are used for starting relevant electromagnetic ball valves, the PLC is used for realizing automatic control, which can be realized through input logic programs, and the ion detector is arranged to obtain more accurate data.

[0021] In the electric control system, the host computer information instruction is received, so that automatic control of subsequent devices is realized in real time, and it should be noted that the host computer can be an instruction set by an operator through the PC monitor or a logic signal written by the PLC, and the corresponding executing mechanism is output after input signals are logically judged; the servo drive supports industrial Ethernet communication, wiring is simpler, and various encoders of the PLC are also supported, so that the servo can be directly replaced without software configuration, and has the functions of accurate positioning, stable operation, speed setting, direction setting, etc.; the stepping drive and the stepping motor: the transmission parts of the equipment are executed by the stepping drive and the stepping motor, the speed and time can be effectively controlled through pulse instructions, compared with ordinary motors, the stepping drive and the stepping motor have the characteristics of small size, adjustable speed and direction, stability and small noise.

[0022] The device can be tested through the following steps:

[0023] S1: The electric control system detects whether there is a detection task;

[0024] S2: When there is no detection task, the electric control system controls the two-position three-way electromagnetic ball valve to conduct the circulation pipeline, and the drilling fluid enters the circulation pipeline and is discharged through the drilling fluid outlet pipe;

[0025] S3: When there is a detection task, the electric control system controls the two-position three-way electromagnetic ball valve to conduct the detection pipeline, and the drilling fluid enters the detection pipeline and can be controlled to pass through the pH detection module, the conductivity detection module or the demulsification voltage detection module, and after the detection is completed, the drilling fluid is discharged through the drilling fluid outlet pipe;

[0026] S4: When the detection task is completed, the electric control system controls the two-position two-way electromagnetic ball valve to conduct, the cleaning fluid enters the detection module through the cleaning fluid wellhead pipe, and after the detection module pipeline is cleaned, the cleaning fluid is discharged through the cleaning fluid outlet pipe.

[0027] The beneficial effects of the utility model are as follows:

[0028] 1) The utility model discloses a detection system's integration realizes the purpose of the automation detection of the multiple parameters of drilling fluid, and through the signal control of the electric control system, the required parameter of drilling fluid can be extracted quickly.

[0029] 2) The utility model discloses through setting up electric control system, realizes the automation operation of drilling fluid parameter detection, and saves time cost and manpower cost simultaneously.

[0030] 3) The utility model discloses through setting up detection pipeline cleaning module, saves the manpower cleaning detection pipeline cost, and effectively improves the precision of drilling fluid parameter detection. DRAWINGS

[0031] Figure 1 It is the structure schematic drawing of the utility model;

[0032] Figure 2 It is the implementation flow diagram of the utility model;

[0033] In the drawing, 1-drilling fluid import pipe, 2-drilling fluid export pipe, 3-circulation pipeline, 4-detection pipeline, 5-two three-way electromagnetic ball valve, 511-first two three-way electromagnetic ball valve, 512-second two three-way electromagnetic ball valve, 513-third two three-way electromagnetic ball valve, 514-fourth two three-way electromagnetic ball valve, 515-fifth two three-way electromagnetic ball valve, 516-sixth two three-way electromagnetic ball valve, 6-two two-way electromagnetic ball valve, 611-first two two-way electromagnetic ball valve, 612-second two two-way electromagnetic ball valve, 613-third two two-way electromagnetic ball valve, 614-fourth two two-way electromagnetic ball valve, 515-fifth two two-way electromagnetic ball valve, 516-sixth two two-way electromagnetic ball valve, 7-pH detection component, 8-conductivity detection component, 9-emulsion breaking voltage detection component, 10-drilling fluid circulating pump, 11-pre-filter, 12-cleaning fluid import pipe, 13-cleaning fluid export pipe, 14-electric control cabinet. DETAILED DESCRIPTION

[0034] The technical scheme of the utility model will be described below in conjunction with embodiments, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model. EMBODIMENT

[0035] As Figure 1As shown, the utility model provides a kind of drilling fluid parameter on-line testing device, including electric control system, cabinet and the detection mechanism being arranged in cabinet, detection mechanism includes drilling fluid inlet pipe 1, drilling fluid outlet pipe 2, detection pipeline 4 and circulation pipeline 3;Detection pipeline 4 includes: detection module and the two-way three-way electromagnetic ball valve of control drilling fluid into detection module, and detection module includes pH detection module, conductivity detection module and demulsification voltage detection module;Circulation pipeline 3 is connected drilling fluid inlet pipe 1, drilling fluid outlet pipe 2 and detection module by two-way three-way electromagnetic valve;

[0036] For the above device, the embodiment provides an implementation, and the electric control system accepts host computer instruction, starts the drilling fluid on-line testing device proposed in the utility model, drilling fluid inlet pipe 1 flows into drilling fluid, passes through two-way three-way electromagnetic ball valve, to make drilling fluid flow into detection pipeline 4, and the detection of drilling fluid parameter is completed, it needs to be explained that host computer instruction can be the instruction issued by PC end, the instruction issued by mobile terminal or the instruction inputted to electric control system by default;In the device described above, the integration of detection system is realized, the purpose of the automatic detection of multiple parameters of drilling fluid is realized, and simultaneously, through the signal control of electric control system, the required parameter of drilling fluid can be quickly extracted, a large amount of time cost and manpower cost are saved.

[0037] As preferred, the device proposed in the utility model further includes drilling fluid circulating pump 10, and the drilling fluid circulating pump 10 is arranged between the first two-way three-way electromagnetic ball valve 511 and the drilling fluid inlet pipe 1, for realizing the pumping of drilling fluid through the drilling fluid inlet pipe 1;Through the arrangement of drilling fluid circulating pump 10, the arrangement in the utility model can not be limited by placement, and drilling fluid can be pumped through drilling fluid circulating pump 10 at any position to complete the parameter detection of drilling fluid.

[0038] As preferred, to improve the device proposed in the utility model to obtain more accurate drilling fluid data during detection, a pre-filter 11 is arranged on the side of drilling fluid circulating pump 10 close to drilling fluid inlet pipe 1, the drilling fluid inlet pipe 1 is connected with the input end of the pre-filter 11, and the output end of the pre-filter 11 is connected with the input end of the first two-way three-way electromagnetic ball valve 511;Through the arrangement of pre-filter 11, the impurities doped in drilling fluid can be effectively separated, so that subsequent detection is more accurate. Embodiment

[0039] As Figure 2As shown, the pH detection module of the online testing device comprises: a first two-position three-way electromagnetic ball valve 511, a pH detection assembly 7 and a second two-position three-way electromagnetic ball valve 512, the input end of the first two-position three-way electromagnetic ball valve 511 is connected with the output end of the drilling fluid inlet pipe 1, the output end of the first two-position three-way electromagnetic ball valve 511 is connected with the input end of the pH detection assembly 7, and the output end of the pH detection assembly 7 is connected with the input end of the second two-position three-way electromagnetic ball valve 512; the conductivity detection module comprises: a third two-position three-way electromagnetic ball valve 513, a conductivity detection assembly 8 and a fourth two-position three-way electromagnetic ball valve 514, the input end of the third two-position three-way electromagnetic ball valve 513 is connected with the output end of the second two-position three-way electromagnetic ball valve 512, the output end of the third two-position three-way electromagnetic ball valve 513 is connected with the input end of the conductivity detection assembly 8, and the output end of the conductivity detection assembly 8 is connected with the input end of the fourth two-position three-way electromagnetic ball valve 514; the demulsification voltage detection module comprises: a fifth two-position three-way electromagnetic ball valve 515, a demulsification voltage detection assembly 9 and a sixth two-position three-way electromagnetic ball valve 516, the input end of the fifth two-position three-way electromagnetic ball valve 515 is connected with the output end of the fourth two-position three-way electromagnetic ball valve 514, the output end of the fifth two-position three-way electromagnetic ball valve 515 is connected with the input end of the demulsification voltage detection assembly 9, the output end of the demulsification voltage detection assembly 9 is connected with the input end of the sixth two-position three-way electromagnetic ball valve 516, and the output end of the sixth two-position three-way electromagnetic ball valve 516 is connected with the drilling fluid outlet pipe 2; the input end of the circulating pipeline 3 is connected with the output ends of the first two-position three-way electromagnetic ball valve 511, the second two-position three-way electromagnetic ball valve 512, the third two-position three-way electromagnetic ball valve 513, the fourth two-position three-way electromagnetic ball valve 514, the fifth two-position three-way electromagnetic ball valve 515 and the sixth two-position three-way electromagnetic ball valve 516 in sequence, and the output end of the circulating pipeline 3 is connected with the drilling fluid outlet pipe 2; the first two-position three-way electromagnetic ball valve 511, the second two-position three-way electromagnetic ball valve 512, the third two-position three-way electromagnetic ball valve 513, the fourth two-position three-way electromagnetic ball valve 514, the fifth two-position three-way electromagnetic ball valve 515 and the sixth two-position three-way electromagnetic ball valve 516 are connected with the signal of the electric control system, and the electric control system realizes the passage control of the first two-position three-way electromagnetic ball valve 511, the second two-position three-way electromagnetic ball valve 512, the third two-position three-way electromagnetic ball valve 513, the fourth two-position three-way electromagnetic ball valve 514, the fifth two-position three-way electromagnetic ball valve 515 and the sixth two-position three-way electromagnetic ball valve 516 through wireless signals.

[0040] In the above device, it can be concluded that the pH detection module, the conductivity detection module and the demulsification voltage detection module in the detection pipeline 4 cooperate through the two-position three-way electromagnetic ball valve and the circulating pipeline, which can be regarded as being connected in parallel on the detection pipeline 4, and by conducting different two-position three-way electromagnetic ball valves, the operation of the pH detection module, the conductivity module or the demulsification voltage detection module can be realized, thereby improving the detection efficiency and obtaining the related drilling fluid parameters.

[0041] The step of detecting alone can be realized by the following operation: the opening direction of the first two-position three-way electromagnetic ball valve 511 and the second two-position three-way electromagnetic ball valve 512 is turned on by the electric control system, the drilling fluid enters the pH detection module, and the opening direction of the third two-position three-way electromagnetic ball valve 513, the fourth two-position three-way electromagnetic ball valve 514, the fifth two-position three-way electromagnetic ball valve 515 and the sixth two-position three-way electromagnetic ball valve 516 is controlled, the drilling fluid flowing out of the pH detection module is discharged through the circulation pipeline 3 after the drilling fluid outlet pipe 2, the detection of the pH value of the drilling fluid is completed, and similarly, different two-position three-way electromagnetic ball valves can complete the detection of different detection modules or multiple modules, and the purpose of timely and efficient detection of the drilling fluid data is realized.

[0042] It should be noted that the pH detection assembly 7 includes but is not limited to a pH detection electrode; the conductivity detection assembly 8 includes but is not limited to a conductivity detection electrode; the demulsification voltage detection assembly 9 includes but is not limited to a demulsification voltage detection electrode; the detection electrode is only a kind of equipment for obtaining data, and other detection devices can be replaced, for example, using detection meter etc.

[0043] As preferred, the utility model discloses a detection pipeline 4 cleaning module, and the detection pipeline 4 cleaning module includes cleaning liquid inlet pipe 12, cleaning liquid outlet pipe 13 and the two-way electromagnetic ball valve of controlling cleaning liquid to enter the detection pipeline 4, and the two-way electromagnetic ball valve is connected with electric control system signal and realizes the passage control of electric control system to two-way electromagnetic ball valve through wireless signal;The detection pipeline 4 after detection is cleaned through the detection pipeline 4 cleaning module, effectively removes the residual drilling fluid in the detection pipeline 4, and guarantees the accuracy of subsequent detection.

[0044] As preferred, the detection pipeline 4 cleaning module includes a pH detection module cleaning assembly, which includes a first two-way electromagnetic ball valve 611 and a second two-way electromagnetic ball valve 612, the input end of the first two-way electromagnetic ball valve 611 is connected with the cleaning liquid wellhead pipe, the output end of the first two-way electromagnetic ball valve 611 is connected with the input end of the second two-way electromagnetic ball valve 612 through the pH detection piece, and the output end of the second two-way electromagnetic ball valve 612 is connected with the cleaning liquid outlet pipe 13, and the first two-way electromagnetic ball valve 611 and the second two-way electromagnetic ball valve 612 can complete the cleaning of the pH detection module.

[0045] As preferred, the detection pipeline 4 cleaning module comprises an electrical conductivity detection module cleaning assembly, the electrical conductivity detection module cleaning assembly comprises a third two-position two-way electromagnetic ball valve 613 and a fourth two-position two-way electromagnetic ball valve 614, the input end of the third two-position two-way electromagnetic ball valve 613 is connected with the cleaning liquid wellhead pipe, the output end of the third two-position two-way electromagnetic ball valve 613 is connected with the input end of the fourth two-position two-way electromagnetic ball valve 614 through the electrical conductivity detection component, and the output end of the fourth two-position two-way electromagnetic ball valve 614 is connected with the cleaning liquid outlet pipe 13. It needs to be noted that the joint control of the third two-position two-way electromagnetic ball valve 613 and the fourth two-position two-way electromagnetic ball valve 614 can realize the separate cleaning of the electrical conductivity detection module.

[0046] As preferred, the detection pipeline 4 cleaning module comprises an electrical conductivity detection module cleaning assembly, the electrical conductivity detection module cleaning assembly comprises a third two-position two-way electromagnetic ball valve 613 and a fourth two-position two-way electromagnetic ball valve 614, the input end of the third two-position two-way electromagnetic ball valve 613 is connected with the cleaning liquid wellhead pipe, the output end of the third two-position two-way electromagnetic ball valve 613 is connected with the input end of the fourth two-position two-way electromagnetic ball valve 614 through the electrical conductivity detection component, and the output end of the fourth two-position two-way electromagnetic ball valve 614 is connected with the cleaning liquid outlet pipe 13. It needs to be noted that the joint control of the third two-position two-way electromagnetic ball valve 613 and the fourth two-position two-way electromagnetic ball valve 614 can realize the separate cleaning of the electrical conductivity detection module.

[0047] The detection pipeline 4 cleaning module described above can realize the separate cleaning of any detection module in the detection pipeline 4 through the cooperation of the two-position two-way electromagnetic ball valve and the electric control system, and the waste of resources is avoided through simple setting, and the detection precision is improved.

[0048] Meanwhile, the detection pipeline 4 cleaning module can also realize the cleaning of the circulating pipeline 3, and the cooperation of the two-position three-way electromagnetic ball valve and the two-position two-way electromagnetic ball valve can make the cleaning liquid flow into the circulating pipeline 3 and then be discharged through the drilling fluid outlet pipe 2. The cleaning of the circulating pipeline 3 can effectively improve the precision of the drilling fluid parameter detection of a single detection module. Embodiment

[0049] A specific implementation method of the drilling fluid parameter online testing device is as follows:

[0050] S1: The electric control system detects whether there is a detection task;

[0051] S2: When there is no detection task, the electric control system controls the two-position three-way electromagnetic ball valve to conduct the circulating pipeline 3, and the drilling fluid enters and is discharged through the drilling fluid outlet pipe 2 after passing through the circulating pipeline 3;

[0052] S3: When there is a detection task, the electric control system controls the two-position three-way electromagnetic ball valve to conduct the detection pipeline 4, and the drilling fluid enters the detection pipeline 4 and can pass through the pH detection module, the electrical conductivity detection module or the demulsification voltage detection module under control, and the drilling fluid is discharged through the drilling fluid outlet pipe 2 after the detection is completed;

[0053] S4: detecting task is finished, the electric control system controls the two-position two-way electromagnetic ball valve to be turned on, the cleaning liquid enters the detection module which has finished detection through the cleaning liquid well mouth pipe, and then is discharged through the cleaning liquid outlet pipe 13 after the detection module pipeline is cleaned.

[0054] As preferred, the embodiment provides a specific use mode of the electric control system, which is as follows: the electric control system comprises an electric control cabinet 14, a local server, a PC monitor, a PLC, a servo drive, a stepping drive and an ion detector which are arranged in the cabinet body, data interaction between the local server and the PLC and between the PLC and the servo drive is realized through industrial Ethernet, and the I / O module of the PLC realizes control over components in the detection mechanism through wireless signals.

[0055] In the electric control system, information instructions of the upper computer are received, so that automatic control of subsequent devices is realized in real time. It should be noted that the upper computer can be instructions set by an operator through the PC monitor or logic signals written by the PLC, and the corresponding executing mechanism is outputted after input signals are logically judged; the servo drive supports industrial Ethernet communication, wiring is simpler, and various encoders of the PLC are also supported, so that the servo can be directly replaced without software configuration, and has the functions of accurate positioning, stable operation, speed setting, direction setting, etc.; the stepping drive and the stepping motor: the transmission parts of the equipment are executed by the stepping drive and the stepping motor, and the speed and time can be effectively controlled through pulse instructions, and compared with ordinary motors, the stepping drive and the stepping motor have the characteristics of small size, adjustable speed and direction, stability and small noise.

[0056] Further, the detection module obtains detection data of electrodes of the drilling fluid or related detection equipment, and such data presents specific parameter values including pH value, conductivity value and demulsification voltage value after conversion, and the calculation method of this type can be realized by existing technical means, so that no further description is given here, but it should be noted that the data obtained by the testing device or method means provided by the utility model should fall within the protection scope of the utility model.

[0057] As preferred, the electric control system can realize recording of some data information other than the drilling fluid parameters, including but not limited to detection time and detection temperature, and such data can be realized through the PC monitor.

[0058] Through the installation of the electric control system, the device and the steps of the utility model can be effectively implemented, the rapid detection of the drilling fluid parameters is realized, and the input of human resources and material resources is greatly reduced.

[0059] The above merely describes preferred embodiments of the present application, and it should be understood that the present application is not limited to the forms disclosed herein, and should not be considered as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concepts described herein, by the above teachings or related art or knowledge. Any modification and change made by those skilled in the art without departing from the spirit and scope of the present application shall be within the protection scope of the claims of the present application.

Claims

1. An on-line drilling fluid parameter testing device, characterized in that: The detection mechanism comprises a drilling fluid inlet pipe (1), a drilling fluid outlet pipe (2), a detection pipeline (4) and a circulation pipeline (3); The detection pipeline (4) comprises a detection module and a two-position three-way electromagnetic ball valve (5) for controlling drilling fluid to enter the detection module, and the detection module comprises a pH detection module, a conductivity detection module and a demulsification voltage detection module; The circulation pipeline (3) is connected with the drilling fluid inlet pipe (1), the drilling fluid outlet pipe (2) and the detection module through two-position three-way electromagnetic valves; The pH detection module comprises a first two-position three-way electromagnetic ball valve (511), a pH detection assembly (7) and a second two-position three-way electromagnetic ball valve (512), the input end of the first two-position three-way electromagnetic ball valve (511) is connected with the output end of the drilling fluid inlet pipe (1), the output end of the first two-position three-way electromagnetic ball valve (511) is connected with the input end of the pH detection assembly (7), and the output end of the pH detection assembly (7) is connected with the input end of the second two-position three-way electromagnetic ball valve (512); The conductivity detection module comprises a third two-position three-way electromagnetic ball valve (513), a conductivity detection assembly (8) and a fourth two-position three-way electromagnetic ball valve (514), the input end of the third two-position three-way electromagnetic ball valve (513) is connected with the output end of the second two-position three-way electromagnetic ball valve (512), the output end of the third two-position three-way electromagnetic ball valve (513) is connected with the input end of the conductivity detection assembly (8), and the output end of the conductivity detection assembly (8) is connected with the input end of the fourth two-position three-way electromagnetic ball valve (514); The demulsification voltage detection module comprises a fifth two-position three-way electromagnetic ball valve (515), a demulsification voltage detection assembly (9) and a sixth two-position three-way electromagnetic ball valve (516), the input end of the fifth two-position three-way electromagnetic ball valve (515) is connected with the output end of the fourth two-position three-way electromagnetic ball valve (514), the output end of the fifth two-position three-way electromagnetic ball valve (515) is connected with the input end of the demulsification voltage detection assembly (9), the output end of the demulsification voltage detection assembly (9) is connected with the input end of the sixth two-position three-way electromagnetic ball valve (516), and the output end of the sixth two-position three-way electromagnetic ball valve (516) is connected with the drilling fluid outlet pipe (2); The output end of the circulation pipeline (3) is connected with the drilling fluid outlet pipe (2). The first two-position three-way electromagnetic ball valve (511), the second two-position three-way electromagnetic ball valve (512), the third two-position three-way electromagnetic ball valve (513), the fourth two-position three-way electromagnetic ball valve (514), the fifth two-position three-way electromagnetic ball valve (515) and the sixth two-position three-way electromagnetic ball valve (516) are connected with the electric control system signal, and the electric control system realizes the passage control of the first two-position three-way electromagnetic ball valve (511), the second two-position three-way electromagnetic ball valve (512), the third two-position three-way electromagnetic ball valve (513), the fourth two-position three-way electromagnetic ball valve (514), the fifth two-position three-way electromagnetic ball valve (515) and the sixth two-position three-way electromagnetic ball valve (516) through wireless signals.

2. The online drilling fluid parameter testing device of claim 1, wherein: The drilling fluid circulating pump (10) is arranged between the first two-position three-way electromagnetic ball valve (511) and the drilling fluid inlet pipe (1), and is used to realize the pumping of the drilling fluid through the drilling fluid inlet pipe (1).

3. The drilling fluid parameter online testing device according to claim 1, characterized in that: The pH detection component (7) includes but is not limited to a pH detection electrode; The conductivity detection component (8) includes but is not limited to a conductivity detection electrode; The demulsification voltage detection component (9) includes but is not limited to a demulsification voltage detection electrode.

4. The online drilling fluid parameter testing device of claim 2, wherein: The drilling fluid circulating pump (10) is provided with a pre-filter (11) on one side close to the drilling fluid inlet pipe (1), the input end of the pre-filter (11) is connected with the drilling fluid inlet pipe (1), and the output end of the pre-filter (11) is connected with the input end of the first two-position three-way electromagnetic ball valve (511).

5. The online drilling fluid parameter testing device of claim 1, wherein: The detection pipeline (4) cleaning module includes a cleaning liquid wellhead pipe (12), a cleaning liquid outlet pipe (13) and a two-position two-way electromagnetic ball valve (6) for controlling the cleaning liquid to enter the detection pipeline (4), the two-position two-way electromagnetic ball valve (6) is connected with the electric control system signal, and the electric control system realizes the passage control of the two-position two-way electromagnetic ball valve (6) through wireless signals.

6. The online drilling fluid parameter testing device of claim 5, wherein: The detection pipeline (4) cleaning module includes a pH detection module cleaning component, the pH detection module cleaning component includes a first two-position two-way electromagnetic ball valve (611) and a second two-position two-way electromagnetic ball valve (612), the input end of the first two-position two-way electromagnetic ball valve (611) is connected with the cleaning liquid wellhead pipe, the output end of the first two-position two-way electromagnetic ball valve (611) is connected with the input end of the second two-position two-way electromagnetic ball valve (612) through the pH detection component, and the output end of the second two-position two-way electromagnetic ball valve (612) is connected with the cleaning liquid outlet pipe (13).

7. The online drilling fluid parameter testing device of claim 5, wherein: The detection pipeline (4) cleaning module includes a conductivity detection module cleaning assembly, the conductivity detection module cleaning assembly includes a third two-position two-way electromagnetic ball valve (613) and a fourth two-position two-way electromagnetic ball valve (614), the input end of the third two-position two-way electromagnetic ball valve (613) is connected with the cleaning liquid wellhead pipe, the output end of the third two-position two-way electromagnetic ball valve (613) is connected with the input end of the fourth two-position two-way electromagnetic ball valve (614) through the conductivity detection element, and the output end of the fourth two-position two-way electromagnetic ball valve (614) is connected with the cleaning liquid outlet pipe (13).

8. The online drilling fluid parameter testing device of claim 5, wherein: The detection pipeline (4) cleaning module includes a demulsification voltage detection module cleaning assembly, the demulsification voltage detection module cleaning assembly includes a fifth two-position two-way electromagnetic ball valve (615) and a sixth two-position two-way electromagnetic ball valve (616), the input end of the fifth two-position two-way electromagnetic ball valve (615) is connected with the cleaning liquid wellhead pipe, the output end of the fifth two-position two-way electromagnetic ball valve (615) is connected with the input end of the sixth two-position two-way electromagnetic ball valve (616) through the demulsification voltage detection element, and the output end of the sixth two-position two-way electromagnetic ball valve (616) is connected with the cleaning liquid outlet pipe (13).

9. The online drilling fluid parameter testing device of claim 1, wherein: The electric control system includes an electric control cabinet (14), a local server, a PC monitor, a PLC, a servo drive, a stepping drive and an ion detector arranged in the cabinet body, data interaction between the local server, the PC monitor, the electric control cabinet (14), the PLC, the stepping drive, the ion detection and the servo drive is realized through an industrial Ethernet, and the I / O module of the PLC realizes control on components in the detection mechanism through wireless signals.

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