Well Depth Processing Method Used in Horizontal Well Drilling Geosteering Construction Process

Abstract

The invention discloses a method for processing the well depth in the drilling geosteering construction process of a horizontal well. The method includes the steps of S1, setting a well depth internal required for track drawing according to current well depth data; S2, collecting the current well depth data based on the well depth interval, and obtaining a parameter value and an initial parameter well depth measurement value corresponding to the parameter value; S3, comparing the initial parameter well depth measurement value with the current well depth data one to one, and determining the actual parameter well depth measurement value corresponding to the parameter value; S4, integrating the parameter value with the actual parameter well depth measurement value. Data point integration is conducted on the gas logging, well deviation, direction, gamma, specific resistance and other parameters on the basis of the current well depth measured by a logging unit according to the corresponding well depth measurement value and the set well depth interval; the precise drawing of a well hole track is achieved.

Description

technical field [0001] The invention relates to the field of horizontal well drilling construction in oil and gas exploration and development, in particular to a method for processing well depth in the geosteering construction process of horizontal well drilling. Background technique [0002] In the drilling process in the field of oil and gas exploration and development, more and more horizontal well drilling construction methods are used. Geosteering refers to the total hydrocarbon, methane and other gas measurement values ​​collected through comprehensive mud logging, drilling time and other engineering parameter values ​​during the horizontal well drilling process, and the well deviation, azimuth, gamma, resistivity and other parameter values ​​collected by measurement while drilling. The wellbore trajectory is controlled based on the well depth to ensure that the wellbore trajectory runs in the target layer to the greatest extent. [0003] Patent CN103046868A "A Horizo...

AI Technical Summary

Problems solved by technology

Since mud logging and measurement while drilling are two types of measurement methods, the sampling frequency of effective data is quite different; there are relatively few data points with the same well depth, which affects the full use of data and affects the accuracy of the trajectory control

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