3results about How to "Avoid introducing errors" patented technology

The embodiment of the present application discloses a kind of method and device for determining magnetic distribution information based on multi-platform magnetic force data.The method comprises: obtaining the magnetic force data measured by at least two measuring platforms on the area to be explored;Wherein, the measuring platform includes aerial survey platform, ground survey platform and drilling survey platform;Based on the magnetic force data corresponding to the area to be explored and the preset parameters to be inverted, a target function is constructed;Wherein, the unknown parameters are added to the target function as the parameters to be inverted, and the parameters to be inverted include at least one preset base point difference parameter and the magnetic parameters to be determined;The base point difference parameter is used to adjust the reference gap between different magnetic force data in the target function;Determine the parameter value corresponding to the magnetic parameters to be determined in the target function, and determine the magnetic distribution information generated by the magnetic body contained in the area to be explored based on the parameter value.The technical scheme of the embodiment of the present application can improve the accuracy of magnetic distribution information.

The invention provides a logging layering interpretation conclusion accurate comparison method based on a mutual cutting method and a related system, and belongs to the technical field of logging data processing in oil exploration and development. The method comprises the following steps: for two versions of hierarchical interpretation conclusion sets of a well, mutually cutting according to top depth and bottom depth, splitting original interpretation layer sections into comparable layer sections, then enabling the comparable layer sections to form comparable layer section groups in a one-to-one correspondence manner, and judging whether the comparable layer section groups are equal or not through comparison of a depth domain and a conclusion domain; and counting and summarizing comparison conclusions of all the comparable layer section groups to form a complete difference comparison result of the well. Through automatic cutting and comparison processes, the method can be added into an existing processing and explaining process very easily, and the difference between explaining results of different versions can be obtained quickly, so that the multi-well comprehensive research period is shortened; especially for the conditions of a large number of wells, a large number of oil reservoirs and a large number of interpretation layer sections, the comparison work efficiency can be remarkably improved, and artificial introduction of extra errors is avoided.

The application relates to the technical field of transmission and bearing, and in particular provides an auxiliary measuring device and a communication pipeline laying equipment to avoid the phenomenon that, when a vernier caliper is used to draw multiple points on the cross section of a pipe to be measured, the measuring points are deviated due to factors such as uneven cross section, visual angle and improper human operation, and to ensure the accuracy of the positions, improve the detection efficiency and reduce human errors. The auxiliary measuring device comprises an auxiliary measuring main body which comprises integrally formed first and second hollow conical tables symmetrically arranged up and down, a plurality of marking through grooves are arranged through the conical surface of the second hollow conical table in the circumferential direction, the marking through grooves are uniformly distributed in a ring array with the central axis of the auxiliary measuring main body as the center and extend along the conical surface generatrix direction of the second hollow conical table, the top end of the marking through groove is close to the maximum diameter end of the second hollow conical table, the maximum diameters of the first and second hollow conical tables are 110mm-150mm, and the minimum diameter of the second hollow conical table is 15mm-30mm.