Prediction Of Formation Drillability And Bit Selection For Halahatang Block

The rock mechanics pammeter is a comprehensive index to evaluate the difficulty degree of rock breakage.It is an important basis for bit selection and drilling decision and also the basic factor that determines the drilling efficiency.Halahatang block is representative in Tarim areas with deep deposits,complex strata and high investment in drilling.This article takes the Halahatog block as a research block,This essay is based on the well lagging data from the region and eore laboratory data,used the mivariate and multivariate linear regreission analyisis to find a relationship between rock mechanics parameters and logging data.At the same time,it builds the forecasting model and profile of single well drilling property parameters of this block.On the basis of the profile,established a method for the distribution of this block obtained drillability regional distribution rule and ac.hieved the visualization of the operation though Petrel.According to stratum stratification,multivariate statistical analysis of the rock properties in the most stmtum was carried out using fuzzy clustering analysis method,and the stratification was achieved by integrating the mechanical properties such as rock drillability and compressive strength.The combined layering results analyze the use of the drill bit After that,the drill bit's indexes are summarized and the layered results are used to guide the drill bit selection.