CN108694258B - Drilling underground virtual simulation method and system for construction scheme rehearsal optimization - Google Patents
Drilling underground virtual simulation method and system for construction scheme rehearsal optimization Download PDFInfo
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Abstract
The invention provides a drilling underground virtual simulation method and system for forecasting optimization of a construction scheme, and belongs to the field of oil and gas well drilling. The invention can be used in the design stage of the drilling scheme, and designers can use the system and the method to carry out simulation, comparison and optimization aiming at different design schemes, or adjust and simulate key parameters, so that the whole set of design scheme achieves the optimum in the aspects of risk control and drilling efficiency; the invention can also be used for simulation rehearsal of a drilling construction team before construction, so that personnel participating in construction can visually know and prejudge the whole construction process, key links and risk links, the pertinence of an emergency plan is improved, and the construction efficiency and safety are improved.
Description
Technical Field
The invention belongs to the field of oil and gas well drilling, and particularly relates to a drilling underground virtual simulation method and system for forecasting and optimizing a construction scheme.
Background
The petroleum and natural gas drilling is an underground concealed project, is compared with the natural difficulty in the ground, and particularly has a great number of problems of heterogeneity, uncertainty, non-structure and non-numeralization when complex structure wells, ultra-deep wells, ultra-large displacement wells and special process wells are drilled under complex geological conditions and the limit is exceeded.
Patent CN102354326A discloses a three-dimensional simulation method for petroleum drilling with high efficiency, real-time synchronization and vivid image, which is sequentially performed according to the following steps: acquiring basic working state sensing signal data of petroleum drilling equipment; screening out sensing signal data required for three-dimensional expression; judging whether mechanical calculation is needed; carrying out XML spatial position analysis on sensing signal data which does not need mechanical calculation; and performing three-dimensional representation by using a three-dimensional engine through XML marks. The method is a three-dimensional representation of the sensor data of the drilling equipment, can not realize more precise underground dynamic scene simulation, such as change forms of rocks, wellbore fluid and well walls, risk identification, drilling rate prediction and the like, and can not be used for performing preview optimization on geological environment and a construction process before drilling.
The utility model discloses a patent CN203134246U utility model discloses an intelligent drilling device simulation training system, which is characterized in that a drilling machine matching device covers a drilling machine derrick, a simulation hydraulic synchronous lifting operation process simulation system, a drilling fluid circulation and solid control device dynamic operation simulation system and an automatic operation control simulation system, displays the dynamic effect of the field operation of the drilling machine equipment, displays the function simulation, dynamic operation and simulation operation control of the drilling machine derrick, a base simulation hydraulic lifting process, a drilling fluid circulating pump and a solid control device, simultaneously applies an automatic control technology and a wireless remote control technology, leads the wireless remote control and local operation to be completely compatible, realizes the real operation and operation control of the drilling machine matching device and the matching equipment, realizes the same control function through a touch human-computer interface, and simultaneously displays the current operation state and operation parameters of the drilling machine equipment, the effect of the simulation training system of the drilling device for simulating the field construction operation is achieved. The invention is a set of simulation hardware device, and the software interfaces of the simulation hardware device are all scene animations which are solidified in advance, so that the driving of real drilling data cannot be realized.
Patent CN101719332A discloses a method for full three-dimensional real-time drilling simulation, which comprises the following steps: establishing a three-dimensional drilling graphic solid model library by adopting a three-dimensional animation modeling method; a graphics processor is specially arranged, and comprises a graphics drawing program and a visual simulation control program; the visual simulation control program communicates with an external main control program according to a set data format to acquire instructions and data of real-time animation; and the visual simulation control program sends an operation instruction to the graph drawing program, and the graph drawing program realizes the drawing and display of the drilling simulation animation. The invention is based on the computer simulation technology and refers to the actual operation flow of the drilling operation field, carries out vivid simulation on the drilling process and the operation method, generates high-quality graphic animation, is used for the technical skill training of the drilling field operators and students at school, improves the training effect, shortens the training period and reduces the training cost. The method is pre-cured typical scene animation splicing, can only be used for training demonstration, and cannot drive and simulate various events in a real drilling process by using real data.
The document 'virtual simulation system for drilling well in oil field' discloses that a parameterized virtual simulation system for drilling well in oil field is researched and constructed by using a computer simulation technology, parameterized motion control is carried out on virtual equipment, and a drilling process is simulated vividly. The virtual simulation system architecture based on the digital computation simulation and visual simulation mixed technology is provided, the mathematical models of a derrick lifting system and a rotary drilling system are analyzed and established, the mathematical models are used for controlling the movement of virtual drilling equipment, and the real-time deformation movement control of a steel wire rope wound on a pulley block is realized. Finally, system parameters can be initialized, and changes of the parameters in the drilling process can be displayed and controlled in real time, so that the interactivity of the system is realized. The technology is only specific to the well drilling ground equipment, and the simulation of the underground state and the process cannot be realized.
The invention discloses a theory and a technical method for realizing three-dimensional simulation in a drilling production process based on a virtual reality technology. The problems of high complexity and slow interactive operation speed of the model in the scene are solved by adopting a triangular mesh optimization algorithm. And the model capacity is reduced by adopting a method of replacing a plane map with a normal map. And performing interactive design by using Virtools software to dynamically display the production process according to the requirements of operators. The whole system is simple to operate, vivid in simulation effect and high in running speed. The technology is used for carrying out three-dimensional visualization on drilling ground equipment, and simulation of an underground drilling process cannot be realized.
The document "construction of a drilling and well control analog simulation platform" discloses that the drilling and well control analog simulation platform mainly comprises two parts, namely a simulation hardware system and a software system, and can perform analog simulation of a drilling process, underground complex condition judgment, a fracture pressure test, a well control operation program (working conditions such as drilling, tripping, empty well and the like) and a well killing process. The platform can not only stimulate the enthusiasm of students to study, deepen the understanding and mastering of the students on the theoretical knowledge of drilling and well control, but also perform analog simulation operation similar to the drilling site, so that the students are personally on the scene, the basic skills of the drilling and well control process of the students are improved, the aim of engineering practice is fulfilled, unstable factors such as danger and the like caused by site operation are avoided, and a solid foundation is laid for the students to adapt to the work of the drilling site as soon as possible after the graduation. The technology aims at the training of the drilling technology, realizes that a specific simulation scene animation is solidified into a system, cannot drive the whole simulation process by utilizing real drilling (design) data, and can only be used for training.
In short, the prior art either simulates the drilling ground equipment or pre-solidifies specific simulation scene animations in software for training, and cannot realize simulation preview of the drilling downhole state and process based on drilling design data driving.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a drilling underground virtual simulation method and system for forecasting and optimizing a construction scheme.
The invention is realized by the following technical scheme:
a method for drilling downhole virtual simulation for predictive optimization of a construction plan, comprising:
step 2, loading a three-dimensional rock mass attribute data volume: reading the rock attribute data volume, and analyzing for later use according to the format of the data volume;
step 3, assuming that N sets of schemes need simulation comparison, setting N to be 0, wherein N is the serial number of the drilling design scheme;
step 4, judging whether N < N is true, if so, turning to step 5, otherwise, turning to step 15;
step 5, loading data of the nth set of drilling design scheme;
step 6, extracting an attribute parameter group along a shaft from the three-dimensional rock mass attribute data body according to the track design data in the drilling design scheme, wherein the extracted step length is 1m interval of the well depth;
step 7, combining the data of the drilling design scheme and the extracted rock attribute parameters according to well depth intervals, wherein each well depth point is a group, and H groups of data are shared if the well depth is H;
step 8, setting an array serial number h as 1;
step 9, judging whether H is less than or equal to H, if so, turning to step 10, otherwise, turning to step 4, wherein n is n + 1;
step 10, performing drilling engineering calculation by using the data of 1-h, comprising the following steps: hydraulic calculation, drilling tool friction resistance torque calculation and mechanical drilling speed calculation;
and 11, calculating a drilling risk value at the depth h by using the result data of the step 7 and the step 10, wherein the drilling risk value comprises the following steps: well leakage, well kick, collapse and differential pressure stuck drill;
step 12, performing vivid visual display of the current underground state by using the result data of the steps 2, 7, 10 and 11 in a three-dimensional scene;
step 13, forming and storing simulation result data packets by the result data of the step 2, the step 7, the step 10 and the step 11 and the key graphs intercepted in the step 12;
step 14, setting h to h +1, and going to step 9;
and step 15, visualizing the simulation result data packets of the N schemes.
The self format in the step 2 adopts an SGY format.
The key graph in the step 13 comprises: a borehole orbit diagram, a well bore structure diagram and a drilling tool assembly diagram; lithology section, pore pressure diagram, collapse pressure diagram, fracture pressure diagram, hydraulic calculation result section, drilling risk section and mechanical drilling speed section.
The visualization in step 15 includes visualization of drilling design data, drilling risk values, and rate of penetration.
The method further comprises:
and step 16, selecting an optimal scheme from the N sets of schemes, and outputting the optimal scheme.
The optimal solution is a solution with low risk and high rate of penetration.
A system for implementing the method comprises:
a system initialization module: setting a simulation item and starting a system;
the rock attribute data volume reading module: reading a rock attribute data volume file, and analyzing to form structured data;
a drilling design scheme data acquisition module: entering or importing drilling design plan data, comprising: the system comprises a well track, a well structure, a drilling tool assembly and drilling construction data, wherein the drilling construction data comprise drill bits, drilling fluid, drilling hydraulic parameters and drilling mechanical parameters;
a rock property acquisition module along the wellbore: on the basis of well track data of well drilling design, extracting one-dimensional rock attribute parameters of each depth point from the rock attribute data at set depth intervals, or manually inputting the one-dimensional parameters;
a data grouping module: aggregating the rock attributes and the drilling design scheme data according to depth to form a two-dimensional array of a group of data of each depth point;
the drilling engineering calculation interface module: and respectively calculating the drilling engineering calculation parameters by using each group of data, including: wellbore annulus circulation pressure equivalent density, drilling tool friction resistance, torque and mechanical drilling speed;
a drilling risk calculation module: calculating a drilling risk value of each depth point by using the rock attributes, the drilling design scheme data and the drilling engineering calculation parameters of each group;
the drilling three-dimensional simulation display module: dynamically displaying a rock body, a shaft structure, a drilling tool, shaft fluid and risks in a three-dimensional scene, and simultaneously assisting to represent key parameters in a drilling process by a two-dimensional curve and virtually drilling a real process, wherein the key parameters comprise lithological stratification, a well body structure, pore pressure, collapse pressure, rupture pressure and shaft annulus circulating pressure equivalent density
The system further comprises:
drilling design parameter interaction adjusting module: the data grouping module is used for adjusting certain parameters in the drilling design scheme data in the drilling simulation process and updating adjustment items into the array generated by the data grouping module.
The system further comprises:
a simulation result storage module: uniformly storing all original data and calculation data related to the simulation into a drilling simulation database;
a simulation result comparison module: if a plurality of schemes exist, the module compares and displays the data and the simulation result of each scheme in a graph and table mode;
the scheme final selection and output module comprises: and selecting an optimal scheme, and outputting the design data and the simulation result of the optimal scheme.
Compared with the prior art, the invention has the beneficial effects that: the invention can be used in the design stage of the drilling scheme, and designers can use the system and the method to carry out simulation, comparison and optimization aiming at different design schemes, or adjust and simulate key parameters, so that the whole set of design scheme achieves the optimum in the aspects of risk control and drilling efficiency; the invention can also be used for simulation rehearsal of a drilling construction team before construction, so that personnel participating in construction can visually know and prejudge the whole construction process, key links and risk links, the pertinence of an emergency plan is improved, and the construction efficiency and safety are improved.
Drawings
FIG. 1 is a block diagram of the steps of the method of the present invention
FIG. 2 is a schematic diagram of the system of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings:
the invention discloses a virtual simulation method and a system for drilling scheme preview simulation optimization, which particularly comprise three-dimensional geological data body visualization, three-dimensional space shaft entity simulation, shaft peripheral rock simulation, automatic extraction of geological parameters along a shaft, real-time calculation of hydraulic parameters in a drilling process, risk prediction in the drilling process, data-driven shaft entity action simulation, data-driven fluid simulation in the shaft, data-driven rock form simulation, risk prompt in the drilling process, drilling machinery drilling speed prediction, drilling cycle prediction and other methods, and software modules such as a data loading, three-dimensional visualization, two-dimensional curve display, interactive adjustment, distributed calculation, a data-driven simulation engine and the like, wherein a simulation scene for simulating drilling in advance on a computer is constructed, and the effect of 'pre-drilling' on the computer is realized. The invention utilizes the real drilling data to drive the display of the simulation scene without artificially setting the animation scene.
The steps of the simulation method of the invention are shown in FIG. 1:
step 2, loading a three-dimensional rock mass attribute data volume: reading a rock attribute data body, and analyzing for later use according to the self format (generally SGY format) of the data body;
step 3, assuming that N sets of schemes need simulation comparison, setting N to be 0, wherein N is the serial number of the drilling design scheme;
step 4, determine N < N? If true, go to step 5, if false, go to step 15;
step 5, loading the nth set of drilling design scheme data;
step 6, extracting a property parameter group (including but not limited to lithology, porosity, permeability, formation pore pressure, formation collapse pressure, formation fracture pressure, fracture width and fracture length) along a shaft from the three-dimensional rock mass property data body according to the track design data in the drilling scheme, wherein the extracted step length is generally 1m interval of the well depth;
step 7, combining drilling design scheme data (such as track data, well body structure data, drilling tool combination data, drill bit data, drilling construction parameters and the like) and the extracted rock attribute parameters according to well depth intervals, wherein each well depth point is a group, and if the well depth is H, H groups of data are shared;
step 8, setting h to 1(h is an array serial number);
step 9, determine H ≦ H? If true, go to step 10, if false, n is n +1, and then go to step 4;
step 10, calculating drilling engineering calculation by using the data of 1-h groups, wherein the drilling engineering calculation comprises hydraulics calculation, drilling tool friction resistance torque calculation and mechanical drilling speed;
step 11, calculating a drilling risk value at the depth n, including lost circulation, kick, collapse and differential pressure stuck drilling, by using the result data of the step 7 and the step 10, wherein the drilling risk value can be calculated by adopting a calculation method commonly used in the industry, or can be calculated by adopting the methods in patent applications 201510163437.1, 201510163640.9, 201510166650.8 and 201510166570.2;
step 12, in a three-dimensional scene, calling a solid simulation model (rock, pipe, fluid and the like) (the model obtained in the step 1) by using the result data of the steps 2, 7, 10 and 11, and performing vivid visual display of the current underground state (the result is input into the model and only provides data required by visualization, the visualization visually and virtually represents the rock, the more vivid and smooth the representation and the more immersive effect in the three-dimensional scene, which are common in the characterization method industry, and the simulation method comprises rock simulation, well wall simulation, casing simulation, drilling tool and action simulation thereof, drilling fluid and rock debris flow simulation, well wall collapse risk simulation and the like, so as to provide an immersive drilling underground virtual scene for a user;
step 13, storing the result data of the steps 2, 7, 10 and 11 and the key graphs intercepted in the step 12 (main graphs of the drilling design scheme, namely a well track diagram, a well body structure diagram and a drilling tool combination diagram; parameter section diagrams and prediction results closely related to risk prediction and mechanical drilling rate prediction, namely a lithologic section diagram, a section diagram of stratum triple pressure and hydraulic calculation results, a drilling risk section diagram and a mechanical drilling rate section diagram), and automatically forming (storing the simulation result data packets into a database by using software modules in corresponding structures and marking the simulation result data packets as a scheme n);
step 14, setting h to h +1, and going to step 9;
step 15, visualizing the N scheme simulation result data packets (the visualization purpose here is to make technicians conveniently visually compare multiple schemes, the method is to read the data packets of each scheme from the database, then sort the data packets in the same well depth coordinate axis according to the data, and transversely arrange the data and the drawing of each scheme), including the drilling design scheme data, the drilling risk value and the mechanical drilling rate;
and step 16, selecting an optimal scheme (basic judgment standard of the optimal scheme: low risk and high rate of penetration, but specific conditions can also be set manually) from the N sets of schemes by using an intelligent algorithm or manually, outputting and ending.
Step 16 is an optional step.
The simulation software system of the present invention is shown in fig. 2, and includes:
a system initialization module: setting simulation items (setting the well number to be simulated, and selecting a calculation model to be used at this time if a plurality of calculation models are available for selection), and starting the system;
the rock attribute data volume reading module: reading a rock attribute data volume file, and analyzing to form structured data;
a drilling design scheme data acquisition module: inputting or importing drilling design scheme data, including well track, well body structure, drilling tool assembly, and drilling construction data (such as drill bit, drilling fluid, drilling hydraulic parameters, drilling mechanical parameters, etc.);
a rock property acquisition module along the wellbore: based on well track data of a well design, extracting one-dimensional rock attribute parameters (such as lithology, porosity, permeability, formation pore pressure, formation collapse pressure, formation fracture pressure, fracture width, fracture length and the like) of each depth point from the rock attribute data at certain depth intervals, or manually inputting the one-dimensional parameters;
a data grouping module: aggregating the rock attributes and the drilling design scheme data according to depth to form a two-dimensional array of a group of data of each depth point;
drilling design parameter interaction adjusting module: the module is an optional module, if some parameters in the drilling design scheme data need to be adjusted in the drilling simulation process, the module is used for performing the adjustment, and the adjustment items are updated to the array of the data grouping module;
the drilling engineering calculation interface module: utilizing each group of data, respectively calling drilling hydraulic calculation, drilling friction resistance torque calculation and drilling mechanical drilling speed calculation software to calculate parameters such as ECD (wellbore annular circulation pressure equivalent density), drilling tool friction resistance, torque, drilling mechanical speed and the like;
a drilling risk calculation module: calculating the drilling risk (kick, leakage, collapse, differential pressure drill sticking and drill breaking) of each depth point by using the rock attribute, the drilling engineering design parameter and the drilling engineering calculation parameter (namely ECD, drill friction resistance, torque and mechanical drilling speed calculated by the drilling engineering calculation interface module) of each group;
the drilling three-dimensional simulation display module: the method comprises the following steps of vividly and dynamically displaying a rock body, a shaft structure, a drilling tool, shaft fluid and risks in a three-dimensional scene, and simultaneously assisting to represent key parameters (lithological stratification, a well structure, stratum triple pressure and ECD) in the drilling process by a two-dimensional curve and virtually drilling the real process;
a simulation result storage module: uniformly storing all original data and calculation data related to the simulation into a drilling simulation database;
a simulation result comparison module: if a plurality of schemes exist, the module contrasts and displays the key data and the simulation result of each scheme in a graph and table mode, so that technicians can intuitively and preferably the most appropriate scheme;
the scheme final selection and output module comprises: and (3) automatically outputting the design data of the scheme and the simulation result thereof by the system by utilizing an intelligent preferred algorithm or manually selecting a certain set of scheme.
Among the modules, the simulation result storage module, the simulation result comparison module and the scheme final selection and output module are selectable modules.
The examples of the invention are as follows:
example 1: well drilling designers have already finished the engineering design initial draft of the well A, the design includes two sets of alternative schemes A-1 and A-2, in order to select a set of scheme (including risk low, short cycle, high trajectory control precision, etc.) preferably, organize the relevant experts, utilize this system to carry on the scheme to compare and demonstrate, experts can carry on the drilling simulation to the local parameter or whole well parameter according to their question, look over the risk that may exist, predict the mechanical drilling rate, etc., preferably a set of scheme finally.
Example 2: in the process of designing a well B of a difficult well, a drilling designer does not know some part of parameters and local design, and organizes related experts in order to optimize a scheme, the system is used for carrying out scheme demonstration optimization, experts can carry out drilling simulation on local parameters or whole well parameters according to own questions, modify unsatisfactory parameters and then take a new guideline, check possible risks, predict mechanical drilling speed and the like, and finally determine an optimal parameter combination and draft of the scheme.
Example 3: the well C is a difficult key exploration well, the construction and supervision team of the well can accurately master the construction process of the whole well in advance, and train constructors to make more specific plans and improve construction efficiency and organize all team members.
The petroleum and natural gas well drilling is underground concealed engineering, is compared with the upper-day difficulty in entering the ground, and in petroleum exploration, the well drilling cost reaches 50-70%, especially when complex structure wells, ultra-deep wells, ultra-large displacement wells and special process wells are drilled under complex geological conditions and exceed limits, a large number of problems of heterogeneity, uncertainty, non-structure and non-numeralization exist, the problem of 'black box' of the engineering is solved, information technology, intelligent technology and modern high-end scientific technology are urgently needed, and the prospect of 'seeing and drilling well down' which is expected in the industry is realized. In order to reduce accidents as much as possible and improve the drilling efficiency and success rate, simulation well drilling on a computer in advance becomes a generally accepted technical trend in the industry, and the method is widely applied.
The above-described embodiment is only one embodiment of the present invention, and it will be apparent to those skilled in the art that various modifications and variations can be easily made based on the application and principle of the present invention disclosed in the present application, and the present invention is not limited to the method described in the above-described embodiment of the present invention, so that the above-described embodiment is only preferred, and not restrictive.
Claims (8)
1. A drilling underground virtual simulation method for construction scheme rehearsal optimization is characterized in that: the method comprises the following steps:
step 1, obtaining a rock attribute data volume, a shaft structure and construction parameters;
step 2, loading a three-dimensional rock mass attribute data volume: reading the rock attribute data volume, and analyzing for later use according to the format of the data volume;
step 3, assuming that N sets of schemes need simulation comparison, setting N =0, wherein N is the serial number of the drilling design scheme;
step 4, judging whether N < N is true, if so, turning to step 5, otherwise, turning to step 15;
step 5, loading data of the nth set of drilling design scheme;
step 6, extracting an attribute parameter group along a shaft from the three-dimensional rock mass attribute data body according to the track design data in the drilling design scheme, wherein the extracted step length is 1m interval of the well depth;
step 7, combining the data of the drilling design scheme and the extracted rock attribute parameters according to well depth intervals, wherein each well depth point is a group, and H groups of data are shared if the well depth is H;
step 8, setting an array serial number h = 1;
step 9, judging whether H is equal to or less than H, if so, turning to step 10, otherwise, n = n +1, and then turning to step 4;
step 10, performing drilling engineering calculation by using the data of 1-h, comprising the following steps: hydraulic calculation, drilling tool friction resistance torque calculation and mechanical drilling speed calculation;
and 11, calculating a drilling risk value at the depth h by using the result data of the step 7 and the step 10, wherein the drilling risk value comprises the following steps: well leakage, well kick, collapse and differential pressure stuck drill;
step 12, performing vivid visual display of the current underground state by using the result data of the steps 2, 7, 10 and 11 in a three-dimensional scene;
step 13, forming and storing simulation result data packets by the result data of the step 2, the step 7, the step 10 and the step 11 and the key graphs intercepted in the step 12;
step 14, setting h = h +1, and going to step 9;
step 15, visualizing the simulation result data packets of the N sets of schemes;
the system for realizing the method comprises the following steps:
a system initialization module: setting a simulation item and starting a system;
the rock attribute data volume reading module: reading a rock attribute data volume file, and analyzing to form structured data;
a drilling design scheme data acquisition module: entering or importing drilling design plan data, comprising: the system comprises a well track, a well structure, a drilling tool assembly and drilling construction data, wherein the drilling construction data comprise drill bits, drilling fluid, drilling hydraulic parameters and drilling mechanical parameters;
a rock property acquisition module along the wellbore: on the basis of well track data of well drilling design, extracting one-dimensional rock attribute parameters of each depth point from rock attribute data at set depth intervals, or manually inputting the one-dimensional rock attribute parameters;
a data grouping module: aggregating the rock attributes and the drilling design scheme data according to depth to form a two-dimensional array of a group of data of each depth point;
the drilling engineering calculation interface module: and respectively calculating the drilling engineering calculation parameters by using each group of data, including: wellbore annulus circulation pressure equivalent density, drilling tool friction resistance, torque and mechanical drilling speed;
a drilling risk calculation module: calculating a drilling risk value of each depth point by using the rock attributes, the drilling design scheme data and the drilling engineering calculation parameters of each group;
the drilling three-dimensional simulation display module: the method comprises the steps of dynamically displaying a rock body, a shaft structure, a drilling tool, shaft fluid and risks in a three-dimensional scene, simultaneously assisting to represent key parameters in a drilling process by a two-dimensional curve, and virtually drilling a real process, wherein the key parameters comprise lithological stratification, a well body structure, pore pressure, collapse pressure, fracture pressure and shaft annulus circulating pressure equivalent density.
2. The method of claim 1 for downhole virtual simulation of drilling for predictive optimization of construction solutions, wherein: the system further comprises:
drilling design parameter interaction adjusting module: the system is used for adjusting certain parameters in the drilling design scheme data in the drilling simulation process and updating adjustment items into the two-dimensional array generated by the data grouping module.
3. The method of drilling downhole virtual simulation for construction solution rehearsal optimization according to claim 1 or 2, characterized in that: the system further comprises:
a simulation result storage module: uniformly storing all original data and calculation data related to the simulation into a drilling simulation database;
a simulation result comparison module: if a plurality of schemes exist, the module compares and displays the data and the simulation result of each scheme in a graph and table mode;
the scheme final selection and output module comprises: and selecting an optimal scheme, and outputting the design data and the simulation result of the optimal scheme.
4. The method of claim 1 for downhole virtual simulation of drilling for predictive optimization of construction solutions, wherein: the self format in the step 2 adopts an SGY format.
5. The method of claim 1 for downhole virtual simulation of drilling for predictive optimization of construction solutions, wherein: the key graph in the step 13 comprises: a borehole orbit diagram, a well bore structure diagram and a drilling tool assembly diagram; lithology section, pore pressure diagram, collapse pressure diagram, fracture pressure diagram, hydraulic calculation result section, drilling risk section and mechanical drilling speed section.
6. The method of claim 5 for downhole virtual simulation of drilling for predictive optimization of construction solutions, wherein: the visualization in step 15 includes visualization of drilling design data, drilling risk values, and rate of penetration.
7. The method of claim 6 for downhole virtual simulation of drilling for predictive optimization of construction solutions, wherein: the method further comprises:
and step 16, selecting an optimal scheme from the N sets of schemes, and outputting the optimal scheme.
8. The method of claim 7 for downhole virtual simulation of drilling for predictive optimization of construction solutions, wherein: the optimal solution is a solution with low risk and high rate of penetration.
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| CN111259509B (en) * | 2018-11-30 | 2023-04-07 | 中国石油化工股份有限公司 | Drilling process simulation method and system |
| CN111339622B (en) * | 2018-11-30 | 2022-08-12 | 中国石油化工股份有限公司 | Drilling process simulation method and system |
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