The Array Of Oil And Gas Wells On The Impact Of Magnetic Field

With the development and use of oil and gas field, highly deviated wells, horizontal wells will be more and more, real-time LWD data measuring play advantages in orientating and formation evaluation in the geological, the use of more and more, at the same time , LWD in horizontal wells, highly deviated wells operating in the process, is likely to hit the vicinity of existing oil and gas wells, but the current though analysis of oil and gas wells on the impact of the geomagnetic field to solve orientation of LWD still relatively little, and need further study.This paper combine with the law of distribution of the geomagnetic field,using the methods of applying ANSYS software to simulate geomagnetic to study the geomagnetic,Five good results were obtained as follows,(1) Deriving geomagnetic expressions in the Cartesian coordinate system and using geomagnetic map verify the correctness of the expression. (2) Applying of ANSYS to establish the geomagnetic field model to obtained geomagnetic data, and application of MATLAB to draw relationship diagrams between the simulation magnetic field and real the magnetic, and thus verify the feasibility and accuracy of methods of application of ANSYS to simulation the magnetic field. (3) Applying of ANSYS to establish a three field models of geomagnetic of oil and gas wells. obtaining the corresponding data, and then apply MATLAB to draw the map of oil and gas wells on the impact of geomagnetic field, and thus verify the feasibility of methods of applying of ANSYS simulation the magnetic field to analyze array oil and gas wells on the impact of the magnetic field. (4) Further analysis of obtained data, obtaining law of multiple oil and gas wells on the impact of the geomagnetic field is the superposition of the results of these oil and gas wells (5) Application of MATLAB to write procedures of the regression analysis, regression analysis of the geomagnetic B and the coordinates x, y. get the relationship between them, proposed thought of geomagnetic navigation in the application of LWD . though the method of applying ANSYS to Simulation geomagnetic to obtain the law of array of oil and gas well on the impact of the magnetic field, and thus, using of this law to achieve applying of magnetic navigation in the LWD, so you can confirm the location of existing wells, guide the drill bit to advance the safety of the ground, to avoid hitting oil and gas wells have been. This paper provide a reference method for the analysis of the array of oil and gas wells on the geomagnetic field, play the important part in reaching in positioning of LWD.