RU2597229C2 - System for identification of inter-well conductivities - Google Patents

Abstract

FIELD: computer engineering.

SUBSTANCE: present invention relates to computer engineering, used in oil producing industry, namely, to information systems of control automation of an oil-extracting enterprise. System comprises a unit for adjusting user lists, a database containing reference data, a unit for processing cartographic parameters, a raw data preparation unit, a unit for preparing data for mathematical calculations, a unit for splitting a research section, unit for correcting yield and pressure, a unit calculating conductivity corrections. Unit for processing parameter requests has a one-way connection to the database that stores telemetric information and a two-way connection to the database that stores reference data. Cartographic parameter processing unit has a one-way connection to the database that stores telemetric information and a two-way connection to the database that stores reference data. Reference data database has a two-way connection to the unit for adjusting user lists, the unit for editing calculation parameters and the unit for editing the parameters of oil production. Database for storing telemetric information has a one-way connection to the data selection unit. Data selection unit has a two-way connection to the unit for preparing unprocessed data and the unit preparing data for mathematical calculations. Data selection unit has a one-way connection to the unit for displaying graphs of actual values of pressure and yield. Unit for data preparation for mathematical calculations has a one-way connection to the unit for splitting a research section. Unit for splitting a research section has a one-way connection to the unit for correcting yield and pressures. Unit for correcting yield and pressures has one-way coupling connection to the unit for calculating conductivity corrections. Unit for calculating conductivity corrections has a one-way connection to the unit for displaying the vectors of well interconnection and the unit for displaying graphs of the calculated values of pressure. Units for displaying graphs of actual values of pressure and yield, displaying vectors of well interconnection and displaying graphs of calculated values have a one-way connection to the unit for creating reports.

EFFECT: technical result: creating system which enables to evaluate the effect of zones of injection and production wells on each other in order to obtain the information which can be used to solve tasks for controlling technological processes.

1 cl, 1 dwg

Description

The cross-hole conductivity identification system is designed to assess the mutual influence of the zones of injection and production wells.

The system is an analytical tool that provides the system user with access to information in a convenient form for perception.

The invention relates to the field of computer technology used in the oil industry, and in particular to information systems for automating the management of an oil producing enterprise.

At present, the degree of equipping the wells with measuring instruments is such that there is a complete picture of both the control effect on the formation — production / injection, and the reaction of the formation — dynamic levels in the wells. Using this information, the geologist today can track the interaction of wells at a qualitative level. There are various methods for studying the mutual influence of wells, based mainly on the use of hydraulic listening technology. However, this technology is economically expensive due to the downtime of production wells.

This problem can be solved by collecting, processing telemetric data from oil production facilities, their further mathematical analysis and presentation of information for decision making.

As a prototype, “Automation system for selection and statistical data analysis” was selected (RF patent for utility model No. 123557). The system is intended for selection, statistical processing and administration of access to information contained in one or more databases having a different structure and presentation form. The system, which is close in structure and functionality to the invention, provides for access to data stored in the database, uses statistical analysis algorithms, and has the ability to build and save reports on the user's computer. The disadvantages of this system include carrying out calculations on a client computer, which entails the transfer of a large amount of data from the server computer to the client computer, as well as the need to install additional software on the client computer. Data processing is carried out exclusively by statistical methods. This system also does not provide tools for user interaction with a topographic map, in particular, the ability to select objects necessary for analysis on the map.

The tasks to which the invention is directed is the creation of a system of mathematical processing, aggregation and visualization by means of a web application of data (density, temperature, volume, pressure, flow rate of process fluids, etc.) obtained from telemetry systems in order to obtain information suitable for solving the problems of regulation of technological processes of an oil producing enterprise.

The problem is achieved by the fact that the identification system of cross-hole conductivities, including a data selection unit, a telemetry information storage database, a parameter request processing unit, a report building unit, a graph display unit for actual pressure and flow rates, a graph display unit for calculated pressure values, a vector display unit mutual influence of wells, a unit for editing calculation parameters, a unit for editing oil production parameters, according to the invention further comprises a user list settings lock, a reference information database, a map processing unit, a raw data preparation unit, a data preparation unit for mathematical calculations, a study site partition unit, a flow rate and pressure correction unit, a conductivity correction calculation unit, and a one-way parameter processing unit connected to a database for storing telemetric information by a communication and two-way communication connected to a database of reference information, a card processing unit of graphic parameters, by one-way communication it is connected to the telemetry information storage database and by two-way communication it is connected to the help information database, the help information database by two-way connections is connected to the user list settings unit, calculation parameters editing unit and oil production parameters editing unit, the one-way telemetry information storage database connected to the data selection unit by communication, data selection unit by two-way communication connected to the unit preparation of raw data and a unit for preparing data for mathematical calculations, a data selection unit for one-way communication is connected to a graph display unit for actual pressures and flow rates, a unit for preparing data for mathematical calculations, for one-way communication is connected to a unit for dividing a study site, a unit for dividing a study site for one-way communication is connected to flow rate and pressure correction unit, flow rate and pressure correction unit is connected by one-way communication with the correction calculation unit to conductivities, the unit for calculating corrections to conductivities with one-way connections is connected to the unit for displaying vectors of mutual interaction of wells and the unit for displaying graphs of calculated pressure values, the unit for displaying graphs of actual values of pressures and flow rates for one-way communication is connected to the reporting unit, the unit for displaying vectors of mutual influence of wells with one-way communication is connected to a reporting unit, a unit for displaying graphs of calculated pressure values by one-way communication is connected to the building unit reports.

The system used allows you to provide access to the corporate network without installing additional software.

The server part of the application is:

- a database for storing telemetric information and a database for storing reference information based on the Oracle Database database management system;

- A set of procedures in the PL / SQL language within the Oracle database, performing all operations on the data.

The client part of the system is an automated workplace that allows you to interact with the system, namely: enter parameters for mathematical calculations and obtain results using visual forms. Made using the Shiny RStudio platform.

Since all calculations are implemented on the server side and the user receives only the results of the calculations, then:

- high requirements are not imposed on the user's computer;

- The time of information transfer from the server to the client part is reduced.

The described model is shown in FIG. 1 and consists of:

1 - Parameter request processing block;

2 - Block processing cartographic parameters;

3 - Database of reference information;

4 - Telemetry information storage database;

5 - Block data selection;

6 - Block preparation of raw data;

7 - Data preparation unit for mathematical calculations;

8 - Block splitting the study area;

9 - Block adjusting flow rates and pressures;

10 - Block calculation of corrections to conductivities;

11 - Block settings user lists;

12 - Block editing calculation parameters;

13 - Block editing oil production parameters;

14 - Block display graphs of actual values of pressures and flow rates;

15 - Block display vectors of mutual influence of wells;

16 - Block display graphs of the calculated pressure values;

17 - Block building reports.

The block for processing parameter requests (1) implies a form in which it is necessary to enter the period of the study of the well section: the date of the start of the study and the end date. The flow rates and pressures for this time interval will be obtained from the Telemetry Information Storage Database (4).

The block for processing cartographic parameters (2) is a topographic map with the ability to select the studied section of wells by selecting it with the mouse. On the map of the mutual location of the bottom faces of the wells, a selection of objects of interest is made whose parameters should be included in the calculation algorithm. In addition, the map shows the partitioning by the Voronoi method of the selected section of wells obtained as a result of the work of the Block for partitioning the study section (8). The calculated cross-hole conductivity is displayed on the map in the form of heat maps, when the calculated coefficient of the cross-hole conductivity is superimposed on the middle of the edge of the Voronoi split between the corresponding wells. Based on these values, an interpolated heat map is constructed and superimposed on the corresponding representation.

The database (DB) of reference information (3) stores:

- a set of calculation algorithm parameters;

- a list of oil production parameters involved in the calculations;

- information about the users of the system, their access rights to it.

The Database (DB) for storing telemetric information (4) contains previously unprocessed telemetry data.

Data selection block (5) - a set of server procedures for selecting data from a telemetry information storage database (4).

The block for preparing raw data (6) is a server procedure designed to filter data. Data filtering is a selective deletion of points whose values do not correspond to those acceptable from a physical point of view.

The unit for preparing data for mathematical calculations (7) is a set of server procedures designed for pre-processing and formatting telemetry data, namely, building cross-tables, sorting, filtering and aggregating data.

The division of the research site (8) is a set of server procedures in which the research site is divided into parts using the Voronoi method. To compile the equation of the material balance of the fluid, it is necessary to know the volume of the surrounding section of the well. It is for this that the study area is divided into blocks, in each of which there is only one well.

The unit for adjusting flow rates and pressures (9) is a set of server procedures in which daily values of pressures and flow rates of wells are calculated. Using the pressure values at the bottom of the wells, reservoir pressures are calculated.

The block for calculating corrections to conductivities (10) is a set of server procedures in which, when compiling a system of differential equations and solving it by the least squares method, the values of corrections to interwell conductivities and, as a result, the values of interwell conductivities are found.

The user list settings block (11) is the administration module procedure that allows you to manage the list of users and their rights to work with the system. This block allows you to add, delete users of the system and edit their rights to access the system modules.

Block for editing calculation parameters (12) is an administration module procedure that allows you to edit parameters when changing the calculation program while preserving all available oil production parameters.

The block for editing oil production parameters (13) is an administration module procedure that allows you to add and remove the necessary parameters when changing the calculation program and oil production parameters.

The graph display unit of the actual values of pressures and flow rates (14) is the form of the graphical representation of the data obtained as a result of their processing by the Raw data preparation unit (6).

Block displaying the vectors of the mutual influence of wells (15) is the data presentation form obtained from the results of the Block for calculating corrections to conductivities (10) of the Mathematical Calculation Module. It is a table and a map of conductivities.

The unit for displaying graphs of calculated pressure values (16) is a graphical representation of the data calculated from the values of cross-hole conductivities obtained at the output of the Block for calculating corrections to conductivities (10) of the Mathematical Calculations Module.

The report building block (17) is the server procedure for generating a pdf document, which saves the results of calculations to the user's computer.

For convenience, the following parts and modules that are formal in nature are introduced into the description:

- A data preparation module, including a block for preparing raw data (6) and a block for preparing data for mathematical calculations (7);

- A module for mathematical calculations, including a block for dividing the study area (8), a block for adjusting flow rates and pressures (9), and a block for calculating corrections to conductivities (10);

- An administration module, including a block for setting user lists (11), a block for editing calculation parameters (12), and a block for editing oil production parameters (13);

- Reporting module, including a unit for displaying graphs of actual pressure and flow rates (14), a unit for displaying well interaction vectors (15), a unit for displaying graphs of calculated pressure values (16), and a reporting unit (17);

- the server part, combining the database of reference information (3), the database for storing telemetric information (4), the data selection block (5), the data preparation module and the mathematical calculation module;

- the client part, which combines the Parameter Request Processing Unit (1), the Cartographic Parameters Processing Unit (2), the Administration Module, and the Reporting Module.

The general algorithm of the system can be described as follows.

Interacting with the system through the Parameter Request Processing Unit (1) and the Cartographic Parameters Processing Unit (2), the user from the reference information database (3) receives a set of possible parameters for making calculations and selects the necessary ones. Namely, in the Parameter Request Processing Unit (1) it sets the time interval for calculation and in the Cartographic Parameter Processing Unit (2) on the topographic map it selects the studied section of wells. In accordance with the entered parameters, the Data selection unit (5) selects data from the telemetry information storage database (4).

The raw data preparation unit (6) of the data preparation module processes the data for further plotting by the graph display unit of the actual values of pressures and flow rates (14) of the reporting module.

After data preparation and collection by the Data Preparation Unit for Mathematical Calculations (7) in the Mathematical Calculations Module, the studied well section selected by the user in the Cartographic Parameters Processing Unit (2) is divided into parts using the Voronoi method in the Division of the study area division (8). For each well in each part of the divided block, if necessary, the values of pressures and flow rates are corrected by the Block for adjusting flow rates and pressures (9). All prepared data goes to the input of the Block for calculating corrections to conductivities (10), in which:

- a system of equations is composed consisting of equations of the material balance of the liquid and their derivatives with respect to conductivities. The equation of material balance is as follows:

where i is the well number;

j _n are the numbers of the boring wells;

β - reservoir elastic capacity (MPa ^-1 );

Vj = Vm = h · l · l · m is the porous volume of the i-th block of the reservoir (m ³ );

h is the thickness of the reservoir (m);

l is the distance between the wells (m);

m is the porosity of the formation;

wij _n - hydraulic conductivity between wells i and j _n

q _i - daily flow rate of the i-th well (m ³ / day);

- as a result of solving the compiled system of equations, theoretical values of pressures and, accordingly, corrections to conductivities are calculated;

- conductivity values are corrected by the obtained correction values:

If the corrections to conductivities are not accurate enough, the corrections calculation block (10) again calculates the corrections. After the work of the Block for calculating corrections to conductivities (10) is completed, the results obtained are used in the Reporting Module in the Block for displaying well interaction vectors (15) and the Block for displaying graphs of calculated pressure values (16). The result of the Well Interference Effect Display Unit (15) is a table of cross-hole conductivities and a conductivity map obtained as a result of the work of the Mathematical Calculations Module. The graphs of the calculated pressure values calculated using the obtained conductivity values are obtained as a result of the operation of the Display Block for the graphs of calculated pressure values (16). The reporting unit (17) works with the results of the Block for displaying graphs of actual pressure and flow rates (14), the Block for displaying vectors of mutual influence of wells and the Block for displaying graphs of calculated pressure values (16) and saves the results as a document on the user's computer.

System operation parameters are managed through the Administration Module, access to which is available only to the administrator. The user list settings block (11) allows you to add, delete users of the system and edit their rights to access the system. The block for editing calculation parameters (12) allows you to edit the parameters used when changing the calculation program while preserving the parameters used. The block for editing oil production parameters (13) allows you to delete and add new oil production parameters when changing the calculation program and oil production parameters. The data edited in the administration module is stored in the database of reference information (3).

As a result of the system, the user has the following features:

1) the ability to access the system from any computer on the corporate network without installing additional software on it;

2) the ability to transfer to the client computer only the results of mathematical calculations without transferring the full amount of data;

3) the use of a topographic map with the ability to select a study site for mathematical calculations according to data from this site;

4) graphical display of data from telemetry systems, which allows you to quickly monitor changes in the operation of telemetry systems and changes in processes occurring at production facilities;

5) providing information on the interaction between the wells to solve the problems of regulating technological processes based on the analysis of data from telemetry systems.

Claims (1)

The identification system of cross-hole conductivities, including a data selection unit, a telemetry information storage database, a parameter request processing unit, a report generation unit, a graph display unit for actual pressure and flow rates, a graph display unit for calculated pressure values, a unit for displaying well interaction vectors, a parameter editing unit calculations, a block for editing oil production parameters, characterized in that it further comprises a block for configuring user lists, a database of reference information, a unit for processing cartographic parameters, a unit for preparing raw data, a unit for preparing data for mathematical calculations, a unit for dividing the study area, a unit for adjusting flow rates and pressures, a unit for calculating corrections to conductivities, and the unit for processing parameter requests with one-way communication is connected to the database storing telemetric information and two-way communication connected to the database of reference information, the processing unit of the cartographic parameters one-way connected to a database for storing telemetric information and a two-way connection to a database for help information, a database for help information with two-way connections to a block for setting user lists, a block for editing calculation parameters and a block for editing oil production parameters, a database for storing telemetric information with one-way communication a data selection unit, a data selection unit with two-way connections connected to a raw data preparation unit and data preparation for mathematical calculations, a data selection unit with one-way communication is connected to a graph display unit for actual pressure and flow rates, a data preparation unit for mathematical calculations with a one-way communication is connected to a study site partitioning unit, a study site partitioning unit is connected by one-way communication with a flow rate correction unit and pressures, unit for adjusting flow rates and pressures by one-way communication is connected to the unit for calculating corrections to conductivities, unit for calculating corrections to conductivities by one-way connections connected to a unit for displaying vectors of mutual interaction of wells and a unit for displaying graphs of calculated pressure values, a unit for displaying graphs of actual values of pressures and flow rates by one-way communication is connected to a unit for constructing reports, a unit for displaying vectors of mutual interaction of wells with one-way communication is connected to a unit for constructing reports, unit displaying graphs of calculated pressure values by one-way communication is connected to the reporting unit.

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