Three-dimensional pressure field modeling method based on geological block tracking
A technology of three-dimensional pressure and modeling method, which is applied in the field of three-dimensional pressure field modeling in petroleum geology, oil and gas exploration and drilling engineering, and can solve the problems of few formation pressure change characteristics and rules, and low accuracy rate
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0045] Example 1. A three-dimensional pressure field modeling method based on geological block tracking, characterized in that the modeling method includes the following steps:
[0046] Step 1: Establish a single-well two-dimensional formation pressure curve based on well logging data;
[0047] Step 2: Establish a formation pressure surface according to the two-dimensional formation pressure curves of each well log;
[0048] Step 3: Interpolate the pressure surfaces of each formation;
[0049] Step 4: Construct a formation pressure frame model using each formation pressure surface;
[0050] Step 5: Identify three-dimensional pressure-sealed blocks within the formation pressure frame model;
[0051] Step 6: Assign pressure characteristics to the identified 3D pressure-closed blocks and establish a 3D pressure field model.
[0052] In step 1, before establishing the single well two-dimensional formation pressure curve, it also includes the step of establishing a single well ...
Embodiment 2
[0081] Example 2. A three-dimensional pressure field modeling method based on geological block tracking, the modeling method includes: step 1, establishing a single well logging comprehensive interpretation environment; step 2, single well two-dimensional formation pressure prediction; step 3, formation pressure surface interpolation; Step 4, build the formation pressure frame model; Step 5, identify the 3D pressure block; Step 6, model the 3D pressure field.
[0082] In step 1, through the analysis and sorting of the logging curves of the drilled wells such as acoustic wave, density, gamma ray, and caliper, as well as the basic data such as well deviation and layering, the acoustic wave and caliper curves of wells with mud soaking and wall collapse, And the outliers of some curves must be corrected by the environment; so as to establish the correct comprehensive interpretation environment of single well logging.
[0083] In step 2, under the correct single-well logging compr...
Embodiment 3
[0089] Example 3. Such as figure 1 As shown, a three-dimensional pressure field modeling method based on geological block tracking includes the following steps.
[0090] In step 101, through the analysis and sorting of the well logging curves such as the sound wave, density, gamma ray, and caliper of the drilled well, and the basic data such as well deviation and layering, there are well sound waves and caliper curves of mud soaking and well wall collapse, The environment correction must be carried out for the abnormal values of some curves; thereby establishing a correct single-well logging comprehensive interpretation environment, and the process enters step 102 .
[0091] In step 102, the specific method for calculating the two-dimensional formation pressure of a single well is to perform multivariate nonlinear analysis of overburden pressure and hydrostatic or measured pressure parameters through gamma ray testing, spontaneous potential testing, porosity logging, sonic ...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More