Comprehensive quantitative evaluation method, equipment and medium for oilfield produced water treatment process

Abstract

The invention relates to the technical field of oilfield produced water treatment process analysis and evaluation, in particular to an oilfield produced water treatment process comprehensive quantitative evaluation method, which comprises the following steps: based on a produced water treatment process flow, decomposing the process flow into a plurality of main evaluation indexes, calculating a first score corresponding to each subject evaluation index based on the subject evaluation index data, the first weight and the second weight; based on the first score corresponding to each subject evaluation index, calculating to obtain a comprehensive score of the plurality of water sampling stations; according to the comprehensive quantitative evaluation method for the oilfield produced water treatment process, a set of systematic evaluation method is established on the basis of production operation parameters such as oilfield produced water detection water quality, the treatment process, chemicals, energy consumption and equipment maintenance cost; and a quantifiable scientific evaluation method is provided for guiding the improvement of the produced water treatment process technology and promoting the refinement and intelligentization of production management.

Description

Technical Field

[0001] The present invention relates to the technical field of oilfield produced water treatment process analysis and evaluation, and in particular to a method, equipment and medium for comprehensive quantitative evaluation of oilfield produced water treatment process. Background Art

[0002] The oilfield water system is responsible for the mission of fully ensuring that oilfield development "injects good water and injects enough water". The amount and quality of injected water directly affect the development effect. As the water content of oilfields continues to increase, the development mode continues to change, the quality of incoming water tends to be more complicated, and the difficulty of ensuring the quality of outgoing water increases. Therefore, detailed analysis of the operating status of each produced water treatment station and systematic scientific analysis and evaluation of the produced water treatment process system have become the key links to improve the water system technology and management level and meet the needs of oilfield water injection development.

[0003] At present, most domestic oilfield produced water treatment stations use a combination of multiple produced water treatment equipment and multiple treatment processes. Regional differences lead to large differences in produced water quality and crude oil physical properties. Selecting the appropriate produced water treatment technology has become a major problem in production and operation. In view of the large differences in the liquid in the produced water treatment stations under the jurisdiction of the oilfield, the complexity of the treatment process units, and the diversification of process evaluation indicators, a comprehensive quantitative evaluation method for oilfield produced water treatment technology is urgently needed to conduct a systematic, comprehensive and objective evaluation of the produced water treatment process system, and provide a quantifiable scientific evaluation method to guide the improvement of produced water treatment process technology and promote the refinement and intelligence of production management. Summary of the invention

[0004] The object of the present invention is to provide a method, equipment and medium for comprehensive quantitative evaluation of oilfield produced water treatment process, so as to solve the above technical problems or at least solve part of the technical problems.

[0005] In order to achieve the above objectives, the present application provides the following technical solutions:

[0006] The embodiment of the present application provides a comprehensive quantitative evaluation method for oilfield produced water treatment process, the method comprising: based on the produced water treatment process flow, decomposing the process into multiple main evaluation indicators, and based on the local process flow corresponding to each main evaluation indicator, subdividing the main evaluation indicator into multiple subordinate indicators; allocating a first weight corresponding to each main evaluation indicator, and a second weight corresponding to multiple subordinate indicators in each main evaluation indicator, and specifying a corresponding scoring standard based on the first weight corresponding to each main evaluation indicator and the second weight corresponding to multiple subordinate indicators in each main evaluation indicator; obtaining main evaluation indicator data corresponding to multiple water sampling stations, and calculating a first score corresponding to each main evaluation indicator based on the main evaluation indicator data, the first weight and the second weight, the main evaluation indicator data being the basic parameter data involved in the main evaluation indicator; and calculating the comprehensive score of multiple water sampling stations based on the first score corresponding to each of the main evaluation indicators.

[0007] In some embodiments, the obtaining of subject evaluation index data corresponding to a plurality of water sampling stations, and calculating a first score corresponding to each subject evaluation index based on the subject evaluation index data, a first weight, and a second weight, includes:

[0008] Obtaining main evaluation index data corresponding to a plurality of water sampling stations, wherein the main evaluation index data includes water quality data, process data, reagent data, energy consumption data, maintenance data, and equipment age data;

[0009] Based on the water quality data, process data, reagent data, energy consumption data, maintenance data and equipment age data and the first weight or the second weight of the corresponding data, the evaluation index corresponding to each type of data is calculated in sequence;

[0010] Based on the evaluation index of each type of data, the comprehensive score corresponding to the oilfield produced water treatment process is calculated by weighted average summation.

[0011] In some embodiments, based on the water quality data, process data, reagent data, energy consumption data, maintenance data, and equipment age data and the first weight or the second weight of the corresponding data, the evaluation index corresponding to each type of data is calculated in sequence, including:

[0012] Retrieving the water quality data, the water quality data including a measured value of oil content, a measured value of suspended solids, and a measured value of median particle size;

[0013] Calculate the compliance rates of the oil content, suspended solids and median particle size values ​​in turn, where compliance rate = standard value / measured value;

[0014] Retrieving the second weights corresponding to the oil content, suspended matter and median particle size, and based on the second weights and the corresponding compliance rates, sequentially calculating the oil content evaluation index, the suspended matter evaluation index and the median particle size evaluation index;

[0015] In some embodiments, based on the water quality data, process data, reagent data, energy consumption data, maintenance data, and equipment age data and the first weight or the second weight of the corresponding data, the evaluation index corresponding to each type of data is calculated in sequence, including:

[0016] The process data retrieved include the suspended impurity removal rate and oil removal rate of multiple produced water treatment stations;

[0017] Calculating an evaluation index of the filtration process based on the suspended impurity removal rates of multiple produced water treatment stations and the corresponding second weights;

[0018] An evaluation index of the oil removal process is calculated based on the oil removal rates of the plurality of produced water treatment stations and the corresponding second weights.

[0019] In some embodiments, based on the water quality data, process data, reagent data, energy consumption data, maintenance data, and equipment age data and the first weight or the second weight of the corresponding data, the evaluation index corresponding to each type of data is calculated in sequence, including:

[0020] Retrieving medicine data, the medicine data including medicine type and dosage, calculating medicine cost based on the medicine type and dosage, and calculating medicine evaluation index based on the medicine cost and a corresponding first weight.

[0021] In some embodiments, based on the water quality data, process data, reagent data, energy consumption data, maintenance data, and equipment age data and the first weight or the second weight of the corresponding data, the evaluation index corresponding to each type of data is calculated in sequence, including:

[0022] Retrieving the energy consumption data, the energy consumption data including the power consumption corresponding to the sewage lifting pump, the backwashing pump and the stirring motor, and calculating the process energy consumption unit price based on the power consumption;

[0023] An energy consumption evaluation index is calculated based on the process energy consumption unit price and the corresponding first weight.

[0024] In some embodiments, based on the water quality data, process data, reagent data, energy consumption data, maintenance data, and equipment age data and the first weight or the second weight of the corresponding data, the evaluation index corresponding to each type of data is calculated in sequence, including:

[0025] Retrieving the maintenance data, the maintenance data including equipment maintenance frequency data and filter material regeneration difficulty data, and calculating the maintenance cost unit price based on the equipment maintenance frequency data and filter material regeneration difficulty data;

[0026] Based on the maintenance cost sheet calculation and the corresponding first weight, a maintenance difficulty evaluation index is calculated.

[0027] In the second aspect, the embodiment of the present application provides a comprehensive quantitative evaluation device for oilfield produced water treatment process. The quantitative evaluation device includes: a decomposition module, a standard determination module, a first calculation module and a second calculation module. The decomposition module is used to decompose the process into multiple main evaluation indicators based on the produced water treatment process, and subdivide the main evaluation indicator into multiple subordinate indicators based on the local process flow corresponding to each main evaluation indicator. The standard determination module is used to assign a first weight corresponding to each main evaluation indicator and a second weight corresponding to multiple subordinate indicators in each main evaluation indicator, and specify a corresponding scoring standard based on the first weight corresponding to each main evaluation indicator and the second weight corresponding to multiple subordinate indicators in each main evaluation indicator. The first calculation module is used to obtain the main evaluation indicator data corresponding to multiple water sampling stations, and calculate the first score corresponding to each main evaluation indicator based on the main evaluation indicator data, the first weight and the second weight, and the main evaluation indicator data is the basic parameter data involved in the main evaluation indicator. The second calculation module is used to calculate the comprehensive score of multiple water sampling stations based on the first score corresponding to each of the main evaluation indicators.

[0028] In a third aspect, an embodiment of the present application provides an electronic device, comprising: a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other through the communication bus; the memory is used to store computer programs; the processor is used to implement the above-mentioned comprehensive quantitative evaluation method of oilfield produced water treatment process when executing the program stored in the memory.

[0029] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium having a computer program stored thereon, characterized in that when the computer program is executed by a processor, the above-mentioned comprehensive quantitative evaluation method for oilfield produced water treatment process is implemented.

[0030] The beneficial effects of the embodiments of the present invention are:

[0031] The embodiment of the present invention aims at the characteristics of large differences in liquid from produced water treatment stations under the jurisdiction of oil fields, complicated treatment process units, and diversified process evaluation indicators. In order to solve the shortcomings of traditional produced water treatment process system evaluation methods, which are one-sided, empirical, and highly subjective, and cannot systematically, comprehensively and objectively evaluate the produced water treatment process system, resulting in the inability to obtain comprehensive and accurate quantitative results, a comprehensive quantitative evaluation method for oilfield produced water treatment technology is proposed. Based on production and operation parameters such as oilfield produced water quality, treatment process, chemicals, energy consumption, and equipment maintenance costs, a set of systematic evaluation methods is established to provide a quantifiable scientific evaluation method for guiding the improvement of produced water treatment process technology and promoting the refinement and intelligence of production management. The method can be executed by an electronic device with computing power.

[0032] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or be understood by implementing the embodiments of the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description, claims, and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0034] Figure 1 It is a schematic flow chart of a comprehensive quantitative evaluation method for oilfield produced water treatment process described in an embodiment of the present invention;

[0035] Figure 2 It is a schematic diagram of the structure of a comprehensive quantitative evaluation device for oilfield produced water treatment process described in an embodiment of the present invention. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0037] It should be noted that similar reference numerals or letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. At the same time, in the description of the present invention, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0038] Example 1

[0039] like Figure 1 As shown, this embodiment provides a method for comprehensive quantitative evaluation of oilfield produced water treatment technology, and the method includes step S100, step S200, step S300 and step S400.

[0040] Step S100: based on the produced water treatment process flow, decompose the process flow into a plurality of main evaluation indicators, and based on the local process flow corresponding to each main evaluation indicator, subdivide the main evaluation indicator into a plurality of subordinate indicators;

[0041] Step S200, assigning a first weight corresponding to each main evaluation indicator and a second weight corresponding to a plurality of subordinate indicators in each main evaluation indicator, and specifying a corresponding scoring standard based on the first weight corresponding to each main evaluation indicator and the second weight corresponding to a plurality of subordinate indicators in each main evaluation indicator;

[0042] Step S300, obtaining subject evaluation index data corresponding to a plurality of water sampling stations, and calculating a first score corresponding to each subject evaluation index based on the subject evaluation index data, a first weight, and a second weight, wherein the subject evaluation index data is basic parameter data involved in the subject evaluation index;

[0043] Step S400: Based on the first score corresponding to each of the main evaluation indicators, the comprehensive scores of the multiple water sampling stations are calculated.

[0044] Secondly, in step S300 of this embodiment, the subject evaluation index data corresponding to the plurality of water sampling stations are obtained, and based on the subject evaluation index data, the first weight and the second weight, the first score corresponding to each subject evaluation index is calculated, including:

[0045] Step S310, obtaining main evaluation index data corresponding to a plurality of water sampling stations, wherein the main evaluation index data includes water quality data, process data, reagent data, energy consumption data, maintenance data and equipment age data;

[0046] Step S320, based on the water quality data, process data, reagent data, energy consumption data, maintenance data and equipment age data and the first weight or the second weight of the corresponding data, sequentially calculate the evaluation index corresponding to each type of data;

[0047] Step S330, and calculate the comprehensive score corresponding to the oilfield produced water treatment process by weighted average summation based on the evaluation index of each type of data.

[0048] Secondly, in step S320, the evaluation index corresponding to each type of data is calculated in sequence based on the water quality data, process data, reagent data, energy consumption data, maintenance data, equipment age data and the first weight or second weight of the corresponding data, including:

[0049] Step S3211, retrieve the water quality data, the water quality data including the oil content measurement value, the suspended matter measurement value and the particle size median measurement value;

[0050] Step S3212, calculating the compliance rates corresponding to the oil content measurement value, the suspended solids measurement value and the particle size median measurement value in sequence, wherein compliance rate = standard value / measurement value;

[0051] Step S3213, retrieve the second weights corresponding to the oil content, suspended matter and median particle size, and based on the second weights and the corresponding compliance rates, calculate the oil content evaluation index, the suspended matter evaluation index and the median particle size evaluation index in sequence.

[0052] Secondly, in step S320, the evaluation index corresponding to each type of data is calculated in sequence based on the water quality data, process data, reagent data, energy consumption data, maintenance data, equipment age data and the first weight or second weight of the corresponding data, including:

[0053] Step S3221, retrieve the process data including the suspended impurity removal rate and oil removal rate of multiple produced water treatment stations;

[0054] Step S3222: Calculate the evaluation index of the filtration process based on the suspended impurity removal rates of the multiple produced water treatment stations and the corresponding second weights;

[0055] Step S3223: Calculate an evaluation index of the oil removal process based on the oil removal rates of multiple produced water treatment stations and the corresponding second weights.

[0056] Secondly, in step S320, the evaluation index corresponding to each type of data is calculated in sequence based on the water quality data, process data, reagent data, energy consumption data, maintenance data, equipment age data and the first weight or second weight of the corresponding data, including:

[0057] Step S3231, retrieve medicine data, the medicine data includes medicine type and dosage, calculate medicine cost based on the medicine type and dosage, and calculate medicine evaluation index based on the medicine cost and the corresponding first weight.

[0058] Secondly, in step S320, the evaluation index corresponding to each type of data is calculated in sequence based on the water quality data, process data, reagent data, energy consumption data, maintenance data, equipment age data and the first weight or second weight of the corresponding data, including:

[0059] Step S3241, retrieve the energy consumption data, the energy consumption data including the power consumption corresponding to the sewage lifting pump, the backwashing pump and the stirring motor, and calculate the process energy consumption unit price based on the power consumption;

[0060] Step S3242: Calculate an energy consumption evaluation index based on the process energy consumption unit price and the corresponding first weight.

[0061] Secondly, in step S320, the evaluation index corresponding to each type of data is calculated in sequence based on the water quality data, process data, reagent data, energy consumption data, maintenance data, equipment age data and the first weight or second weight of the corresponding data, including:

[0062] Step S3251, retrieve the maintenance data, the maintenance data including equipment maintenance frequency data and filter material regeneration difficulty data, and calculate the maintenance cost unit price based on the equipment maintenance frequency data and filter material regeneration difficulty data;

[0063] Step S3251: Calculate a maintenance difficulty evaluation index based on the maintenance cost sheet calculation and the corresponding first weight.

[0064] In this embodiment, in view of the large differences in the incoming liquids of the produced water treatment stations under the jurisdiction of the oil field, the complexity of the treatment process units, and the diversification of process evaluation indicators, in order to solve the shortcomings of the traditional produced water treatment process system evaluation method, which is one-sided, empirical, and highly subjective, and cannot systematically, comprehensively and objectively evaluate the produced water treatment process system, resulting in the inability to obtain comprehensive and accurate quantitative results, a comprehensive quantitative evaluation method for oilfield produced water treatment technology is studied. Based on the production and operation parameters such as oilfield produced water quality, treatment process, chemicals, energy consumption, equipment maintenance cost, etc., a systematic evaluation method is established to provide a quantifiable scientific evaluation method for guiding the improvement of produced water treatment process technology and promoting the refinement and intelligence of production management.

[0065] Example 2

[0066] This embodiment is used to explain the principles of the steps in the above embodiment in detail through a specific implementation case:

[0067] (1) Establish a comprehensive evaluation system for produced water treatment technology

[0068] The produced water treatment process system is divided into structural levels, and based on multiple main produced water treatment process units, the evaluation indicators for each subject evaluation are determined.

[0069] According to the actual production and operation status of the oilfield produced water treatment process system, 7 main evaluation indicators are selected (water quality compliance, process treatment efficiency, control indicator difficulty, reagents, energy consumption, maintenance difficulty, and service life). The main evaluation indicators of the present invention include 7 items, and different application scenarios can increase or delete the main evaluation indicators according to actual evaluation needs.

[0070] The evaluation indicators of the three main evaluation indicators of water quality compliance, process efficiency, and control index difficulty are divided into 7 evaluation indicators. Different application scenarios can add or delete evaluation indicators according to actual evaluation needs. The evaluation indicator composition is shown in Table 1:

[0071] Table 1 Evaluation index composition

[0072]

[0073]

[0074] (2) Determine the weights of evaluation indicators and formulate scoring standards for evaluation indicators

[0075] According to the above selected 7 main evaluation indicators and the 7 subordinate evaluation indicators (a total of 11 items), each main item and its subordinate evaluation indicators are weighted (the weight can be flexibly adjusted according to the impact of each indicator on the produced water treatment process system in actual production), and the evaluation indicators are standardized according to the attributes of each evaluation indicator, and the corresponding indicator scoring standards are formulated. The comprehensive evaluation standards for produced water treatment process are shown in Table 2:

[0076] Table 2 Comprehensive evaluation system of produced water treatment process

[0077]

[0078]

[0079] (3) Collect data on various evaluation indicators and calculate the scores of various evaluation indicators

[0080] The basic parameter data involved in the 7 main evaluation indicators of multiple produced water stations and the 7 subordinate evaluation indicators (a total of 11 items) were collected. According to the evaluation indicator scoring criteria, the scores of each evaluation indicator of each produced water station were calculated by weighted calculation, and finally the comprehensive score of the 7 indicators was calculated.

[0081] ① Comprehensive score calculation:

[0082] The comprehensive score calculation of the present invention is to sum up the weighted average of the scores of the 7 main evaluation indicators and the 7 subordinate indicators (a total of 11 items):

[0083]

[0084]

[0085] D: comprehensive score; Qi: score of the i-th item; Wi: weight of the i-th item.

[0086] ② Water quality meets the standard: The weight of water quality meeting the standard is w1+w2+w3 (where suspended matter, oil content and median particle size account for w1, w2 and w3 respectively). If the water quality does not meet the standard, the process will fail.

[0087]

[0088] If the calculated result is greater than or equal to 100, the compliance rate is 100; if the calculated result is less than 100, the compliance rate is the calculated value. The score calculation for this item is as follows:

[0089] Q1 = compliance rate × 100 × w1; Q2 = compliance rate × 100 × w2; Q3 = compliance rate × 100 × w3, where the weights of oil content, suspended matter and median particle size are w1, w2 and w3 respectively.

[0090] ③Process efficiency: The weight of process efficiency is w4+w5, of which the filtration process accounts for w4 and the oil removal process accounts for w5. The calculation of this score is as follows:

[0091] Taking the filtration process as an example, if the evaluation sample capacity is 4 produced water treatment stations, the removal rates of treatment stations 1, 2, 3, and 4 are n1%, n2%, n3%, and n4% respectively. If n1%>n2%>n3%>n4%, the comprehensive scores of treatment stations 1, 2, 3, and 4 are calculated according to the scoring criteria as follows: 100×w5, [100-(n1-n2) / 1×w5], [100-(n1-n3) / 1×w5], and [100-(n1-n4) / 1×w5]. The calculation methods of Q4 and Q5 are the same.

[0092] ④ Difficulty of control indicators: The present invention takes suspended solids and median particle size as the difficulty of oilfield produced water treatment (the difficulty of produced water treatment can be determined based on the actual application scenario), and the weight of control indicator difficulty accounts for w6+w7, of which suspended solids account for w6 and the median particle size is w7. Scoring is performed according to the strictness of water quality control indicators.

[0093] Taking suspended matter as an example, if the suspended matter measurement value is h1, and h1∈(b, c], then Q6=Z6×w6, and the calculation method of Q7 is the same as that of Q6.

[0094] ⑤ Pharmacy: Pharmacy type, dosage, operation management, and calculation of Pharmacy cost (yuan / square meter). The weight of this indicator accounts for w8, and the calculation method of Q8 is the same as that of Q6.

[0095] ⑥ Energy consumption: electricity consumption of sewage lifting pump, backwashing pump, stirring motor, etc., calculate the energy consumption of treatment process (yuan / cubic meter). The weight of this indicator accounts for w9, and the calculation method of Q9 is the same as that of Q6.

[0096] ⑦ Maintenance difficulty: including equipment maintenance frequency, filter material regeneration difficulty, etc., calculate maintenance cost (yuan / cubic meter). The weight of this indicator accounts for w10, and the calculation method of Q10 is the same as that of Q6.

[0097] ⑧ Service life: the length of time the equipment is in use (years). This indicator accounts for w10, and the Q8 calculation method is based on the service life of the device.

[0098] The evaluation index weight assignment and scoring criteria in the comprehensive scoring criteria for produced water treatment process of the present invention are for reference only, and different application scenarios can be changed according to actual production conditions and evaluation requirements.

[0099] (4) Analyze the adaptability of produced water treatment process based on the comprehensive evaluation score

[0100] The produced water stations are ranked by comprehensive evaluation scores. The higher the score, the better the suitability of the produced water station, and the lower the score, the worse the suitability. The shortcomings of the treatment process with poor adaptability are analyzed, and the potential items that can be optimized are explored to guide the improvement of produced water treatment process technology.

[0101] Specifically, based on the actual production and operation of 5 produced water treatment stations under a certain oil field, a comprehensive evaluation system for the produced water treatment process of the oil field is established. In this embodiment, 7 main evaluation indicators and the 7 subordinate indicators contained therein are selected as evaluation indicators of the evaluation system, as shown in Table 3:

[0102] Table 3 Evaluation index composition

[0103]

[0104]

[0105] (2) According to the influence of various indicators on the produced water treatment process system in actual production, each subject and its evaluation indicators are weighted, and the scoring standards are formulated according to the attributes of each evaluation indicator, as shown in Table 4:

[0106] Table 4 Comprehensive evaluation system of produced water treatment technology in an oil field

[0107]

[0108]

[0109] (3) The water quality test values ​​(oil content, suspended solids, and median particle size) of the inlet water, oil removal process outlet, and filtration process outlet of five produced water treatment stations under an oil field were obtained. The water quality test results of the five produced water stations are shown in Table 5.

[0110] Table 5 Summary of water quality testing of 5 produced water treatment stations in an oil field

[0111]

[0112]

[0113] In order to evaluate whether the effluent water quality indicators of the produced water treatment process meet the requirements of the injection water quality indicators, the water quality evaluation indicators of the present invention include three items (oil content, suspended matter, and median particle size). The main control indicators of water quality implement the SY5329-2022 technical requirements and analysis methods for injection water quality indicators in clastic oil reservoirs as shown in Table 6. Different application scenarios can implement different standards according to actual evaluation needs.

[0114] Table 6 Main water quality control standards

[0115]

[0116] The calculation results of water quality compliance rate are shown in Table 7:

[0117] Table 7 Calculation of water quality compliance rate of 5 produced water treatment stations in an oil field

[0118]

[0119]

[0120] According to the test results of each sampling point, the crude oil removal rate of the oil removal process and the suspended solids removal rate of the filtration process of the five produced water stations were calculated, as shown in Tables 8 and 9.

[0121] Table 8 Evaluation table of oil removal process treatment effect of 5 produced water treatment stations in an oil field

[0122]

[0123]

[0124] Table 9 Statistics of the filtration process treatment effect of a certain oil field produced water treatment station

[0125]

[0126]

[0127] (4) The specific comprehensive score of each produced water station is obtained by calculation. The higher the score, the better the suitability of the produced water station, and the lower the score, the worse the suitability. The calculation results are shown in Table 10.

[0128] Table 10 Comprehensive evaluation results of treatment processes of five produced water stations in an oil field

[0129]

[0130] Through comparative analysis of the comprehensive scoring results of the treatment processes of the five produced water stations, it can be seen that the treatment process of produced water treatment station A has the best adaptability, the treatment process of produced water treatment station B has the worst adaptability, and the comprehensive scores of produced water treatment stations E, C, and D are in the middle. The shortcomings of each treatment station are analyzed, potential items for optimization are explored, and related processes are optimized.

[0131] Example 3

[0132] Corresponding to the above method embodiment, the embodiment of the present disclosure also provides a comprehensive quantitative evaluation device for oilfield produced water treatment process. The comprehensive quantitative evaluation device for oilfield produced water treatment process described below and the comprehensive quantitative evaluation method for oilfield produced water treatment process described above can be referenced to each other.

[0133] Figure 2FIG. 8 is a block diagram of a comprehensive quantitative evaluation device 800 for oilfield produced water treatment process according to an exemplary embodiment. Figure 2 As shown, the electronic device 800 may include: a processor 801 and a memory 802. The electronic device 800 may also include one or more of a multimedia component 803, an I / O interface 804, and a communication component 805.

[0134] The processor 801 is used to control the overall operation of the electronic device 800 to complete all or part of the steps in the above-mentioned comprehensive quantitative evaluation method for oilfield produced water treatment process. The memory 802 is used to store various types of data to support the operation of the electronic device 800, and these data may include instructions for any application or method used to operate on the electronic device 800, as well as application-related data, such as contact data, sent and received messages, pictures, audio, video, etc. The memory 802 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (Static Random Access Memory, referred to as SRAM), electrically erasable programmable read-only memory (Electrically Erasable Programmable Read-Only Memory, referred to as EEPROM), erasable programmable read-only memory (Erasable Programmable Read-Only Memory, referred to as EPROM), programmable read-only memory (Programmable Read-Only Memory, referred to as PROM), read-only memory (Read-Only Memory, referred to as ROM), magnetic memory, flash memory, disk or optical disk. The multimedia component 803 may include a screen and an audio component. The screen may be, for example, a touch screen, and the audio component is used to output and / or input audio signals. For example, the audio component may include a microphone, which is used to receive external audio signals. The received audio signal may be further stored in the memory 802 or sent through the communication component 805. The audio component also includes at least one speaker for outputting audio signals. The I / O interface 804 provides an interface between the processor 801 and other interface modules, and the above-mentioned other interface modules may be keyboards, mice, buttons, etc. These buttons may be virtual buttons or physical buttons. The communication component 805 is used for wired or wireless communication between the electronic device 800 and other devices. Wireless communication, such as Wi-Fi, Bluetooth, Near Field Communication (NFC), 2G, 3G or 4G, or a combination of one or more of them, so the corresponding communication component 805 may include: Wi-Fi module, Bluetooth module, NFC module.

[0135] In an exemplary embodiment, the electronic device 800 can be implemented by one or more application specific integrated circuits (ASIC), digital signal processors (DSP), digital signal processing devices (DSPD), programmable logic devices (PLD), field programmable gate arrays (FPGA), controllers, microcontrollers, microprocessors or other electronic components to execute the above-mentioned comprehensive quantitative evaluation method for oilfield produced water treatment process.

[0136] In another exemplary embodiment, a computer-readable storage medium including program instructions is also provided, and when the program instructions are executed by a processor, the steps of the above-mentioned oilfield produced water treatment process comprehensive quantitative evaluation method are implemented. For example, the computer-readable storage medium can be the above-mentioned memory 802 including program instructions, and the above-mentioned program instructions can be executed by the processor 801 of the electronic device 800 to complete the above-mentioned oilfield produced water treatment process comprehensive quantitative evaluation method.

[0137] Example 4

[0138] Corresponding to the above method embodiment, the embodiment of the present disclosure further provides a readable storage medium. The readable storage medium described below and the comprehensive quantitative evaluation method for oilfield produced water treatment process described above can refer to each other.

[0139] A readable storage medium stores a computer program, which, when executed by a processor, implements the steps of the comprehensive quantitative evaluation method for oilfield produced water treatment process of the above method embodiment.

[0140] The readable storage medium may specifically be a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, or other readable storage medium that can store program codes.

[0141] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A comprehensive quantitative evaluation method for oilfield produced water treatment technology, characterized in that: The method comprises: Based on the produced water treatment process, the process is decomposed into a plurality of main evaluation indicators, and based on the local process corresponding to each main evaluation indicator, the main evaluation indicator is subdivided into a plurality of subordinate indicators; Allocating a first weight corresponding to each main evaluation indicator and a second weight corresponding to a plurality of subordinate indicators in each main evaluation indicator, and specifying a corresponding scoring standard based on the first weight corresponding to each main evaluation indicator and the second weight corresponding to a plurality of subordinate indicators in each main evaluation indicator; Obtaining subject evaluation index data corresponding to a plurality of water sampling stations, and calculating a first score corresponding to each subject evaluation index based on the subject evaluation index data, a first weight, and a second weight, wherein the subject evaluation index data is basic parameter data involved in the subject evaluation index; Based on the first score corresponding to each of the main evaluation indicators, the comprehensive scores of the multiple water sampling stations are calculated.

2. The comprehensive quantitative evaluation method for oilfield produced water treatment process according to claim 1, characterized in that: The obtaining of subject evaluation index data corresponding to the plurality of water sampling stations, and calculating a first score corresponding to each subject evaluation index based on the subject evaluation index data, the first weight and the second weight, comprises: Obtaining main evaluation index data corresponding to a plurality of water sampling stations, wherein the main evaluation index data includes water quality data, process data, reagent data, energy consumption data, maintenance data, and equipment age data; Based on the water quality data, process data, reagent data, energy consumption data, maintenance data and equipment age data and the first weight or the second weight of the corresponding data, the evaluation index corresponding to each type of data is calculated in sequence; Based on the evaluation index of each type of data, the comprehensive score corresponding to the oilfield produced water treatment process is calculated by weighted average summation.

3. The comprehensive quantitative evaluation method for oilfield produced water treatment process according to claim 2, characterized in that: Based on the water quality data, process data, reagent data, energy consumption data, maintenance data and equipment age data and the first weight or second weight of the corresponding data, the evaluation index corresponding to each type of data is calculated in turn, including: Retrieving the water quality data, the water quality data including the oil content measurement value, the suspended matter measurement value and the particle size median measurement value; Calculate the compliance rates of the oil content, suspended solids and median particle size values ​​in turn, where compliance rate = standard value / measured value; The second weights corresponding to the oil content, suspended matter and median particle size are retrieved, and based on the second weights and the corresponding compliance rates, the oil content evaluation index, the suspended matter evaluation index and the median particle size evaluation index are calculated in sequence.

4. The comprehensive quantitative evaluation method for oilfield produced water treatment process according to claim 2, characterized in that: Based on the water quality data, process data, reagent data, energy consumption data, maintenance data and equipment age data and the first weight or second weight of the corresponding data, the evaluation index corresponding to each type of data is calculated in turn, including: The process data retrieved include the suspended impurity removal rate and oil removal rate of multiple produced water treatment stations; Calculating an evaluation index of the filtration process based on the suspended impurity removal rates of multiple produced water treatment stations and the corresponding second weights; An evaluation index of the oil removal process is calculated based on the oil removal rates of the plurality of produced water treatment stations and the corresponding second weights.

5. The comprehensive quantitative evaluation method for oilfield produced water treatment process according to claim 2, characterized in that: Based on the water quality data, process data, reagent data, energy consumption data, maintenance data and equipment age data and the first weight or second weight of the corresponding data, the evaluation index corresponding to each type of data is calculated in turn, including: Retrieving medicine data, the medicine data including medicine type and dosage, calculating medicine cost based on the medicine type and dosage, and calculating medicine evaluation index based on the medicine cost and a corresponding first weight.

6. The comprehensive quantitative evaluation method for oilfield produced water treatment process according to claim 2, characterized in that: Based on the water quality data, process data, reagent data, energy consumption data, maintenance data and equipment age data and the first weight or second weight of the corresponding data, the evaluation index corresponding to each type of data is calculated in turn, including: Retrieving the energy consumption data, the energy consumption data including the power consumption corresponding to the sewage lifting pump, the backwashing pump and the stirring motor, and calculating the process energy consumption unit price based on the power consumption; An energy consumption evaluation index is calculated based on the process energy consumption unit price and the corresponding first weight.

7. The comprehensive quantitative evaluation method for oilfield produced water treatment process according to claim 2, characterized in that: Based on the water quality data, process data, reagent data, energy consumption data, maintenance data and equipment age data and the first weight or second weight of the corresponding data, the evaluation index corresponding to each type of data is calculated in turn, including: Retrieving the maintenance data, the maintenance data including equipment maintenance frequency data and filter material regeneration difficulty data, and calculating the maintenance cost unit price based on the equipment maintenance frequency data and filter material regeneration difficulty data; Based on the maintenance cost sheet calculation and the corresponding first weight, a maintenance difficulty evaluation index is calculated.

8. A comprehensive quantitative evaluation device for oilfield produced water treatment process, characterized in that: The quantitative evaluation device comprises: A decomposition module, for decomposing the produced water treatment process into a plurality of main evaluation indicators based on the produced water treatment process, and subdividing the main evaluation indicator into a plurality of subordinate indicators based on the local process corresponding to each main evaluation indicator; A standard determination module, used to assign a first weight corresponding to each main evaluation indicator and a second weight corresponding to a plurality of subordinate indicators in each main evaluation indicator, and to specify a corresponding scoring standard based on the first weight corresponding to each main evaluation indicator and the second weight corresponding to a plurality of subordinate indicators in each main evaluation indicator; A first calculation module is used to obtain subject evaluation index data corresponding to a plurality of water sampling stations, and calculate a first score corresponding to each subject evaluation index based on the subject evaluation index data, a first weight, and a second weight, wherein the subject evaluation index data is basic parameter data involved in the subject evaluation index; The second calculation module is used to calculate the comprehensive scores of multiple water sampling stations based on the first score corresponding to each of the main evaluation indicators.

9. An electronic device, characterized in that: include: A processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other via the communication bus; Memory, used to store computer programs; The processor is used to implement the comprehensive quantitative evaluation method for oilfield produced water treatment process according to any one of claims 1 to 7 when executing the program stored in the memory.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the comprehensive quantitative evaluation method for oilfield produced water treatment process described in any one of claims 1-7 is implemented.

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