Order of data processing |
It is recommended to use the following order of data processing:
1) Preparing a description of geological layers. Description of soils and/or geological layers is performed by means of the Options of parameters of functioning of a task mode.
2) Drawing the points of wellhead location onto the map. The position of the wellhead point is determined by coordinates obtained by topographic or mine surveying. To put the wellhead point onto the map, the Drawing of points of engineering-geological researches (boreholes) mode is used. In the process of drawing wells, you can enter information about the exposed geological layers.
3) Input of the description of the layers exposed by a well. For existing map objects that characterize the location of the wellhead, you can edit the information about the exposed geological layers using the Viewing and editing of attributes of borehole mode.
4) Drawing the designed well axis. The designed position of the well axis in space is characterized by the position of the wellhead and its bottom. Drilling practice has shown that all wells in the process of drilling are deviated to some extent. If the wellbore deviation occurs spontaneously, then such deviation is called natural, if it is carried out intentionally, in order to solve any technical problem, then artificial. To determine the spatial position of the designed axis of a deviating-directional well with artificial curvature, it is necessary additionally to put the points of the beginning, middle and end of the curvature section onto the map. After drawing points it is possible to create a linear object - a designed axis of a well by means of the Map Editor. To automate the drawing of the designed well axis with several characteristic points, it is recommended to use the Build the well axis by coordinates mode.
5) Building the actual well axis. The actual position of the well trajectory is determined by data of inclinometry measurements carried out in the wellbore through intervals of a certain length (usually 5, 10, 20, 40 or 50 m). The zenith and azimuth angles are measured at each point at a certain depth. To calculate the coordinates of the wellbore axis and put the results of the calculation onto the map, the Build the well axis by inclinometry mode is used.
6) Calculating the location of points of intersection of layers with the well axis. Information about the geological layers exposed by the well, entered in the Drawing of points of engineering-geological researches or Viewing and editing of attributes of borehole mode, is used to calculate the coordinates of the intersection of the bottom of the layers by the well axis. The mode Build of intersection layers provides calculating the coordinates of such points and drawing them onto a map in the form of point objects
7) Design of the plan of wells for analysis. One well on the map can be described by several objects: wellhead, well axis, points of intersection of layers and bottomhole. For the convenience of visual analysis of graphical information about the well, you can customize the color of displaying the conventional signs. This can be done in the dialog of the description of the map object. To request a description of an object of a digital vector map, you need to move the cursor crosshairs on the object and press the left mouse button.
8) Building an inclinogram. The position of the vertical profile of the well and the projection of its axis onto the map plane are put on the inclinogram. The mode Horizontal and vertical projection of the well axis is intended to build inclinogram. The inclinogram can be built for one or several wells. Dialogue tools allow you to control the horizontal and vertical scale of the schemes and the angle of passage of the projection plane, which allows you to use the mode for analyzing the relative spatial position of the wells. Analysis of inclinograms allows to take the necessary precautions when performing drilling operations.
9) Data analysis. For analysis of the data about wells, in addition to the inclinogram, other modes of the Geological Editor can be used. By information about geological layers the matrixes of layers and matrixes of qualities can be constructed. Various calculations can be performed on the matrixes. Modes of three-dimensional visualisation are intended for visual display of data.
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