In the process of operation, such as well killing, acidizing, testing, tight pull or getting stuck and other operation, operation parameters need be quickly analyzed in order to optimize process measures. But related calculation formula and model is complicated and relevant reference is dispersed. It greatly reduces analytical efficiency of well test engineers. For this reason, iDrill well test integrates the calculation method and the modified mathematical model of the relevant parameters in well test operation, and can quickly provide construction parameters analysis for well test engineers.

Engineering Calculations:

 String Calculations

·         Tubing controlled pressure calculation

·         Friction loss calculation of conventional tubing injection

·         Production casing normal pressure analysis

·         High-pressure gas well casing checking calculation

·         Dynamic gas column pressure calculation

 Wellhead Pressure Calculations

·         Shut-in wellhead pressure

·         Wellhead pressure analysis during acidification

·         Wellhead pressure analysis during sand fracturing

 Testing Calculations

·         Critical velocity calculation

·         Washers flow meter calculation

·         AOF calculation

Acidification Calculations

·         Acid displacement volume calculation of low pressure

·         High-top water activity calculation

·         Residual acid concentration calculation

·         Sand washing calculation

 Workover Calculations

·         Depth of stuck point calculation for single string

·         Depth of stuck point calculation for combination string

·         Turns allowed to twist stuck pipe

Well Control Calculations

·         Killing well calculation

·         Oil and gas upward flow velocity calculation

Well Productivity Predictions

·         Conventional productivity prediction when static pressure is below saturation pressure

·         Conventional productivity prediction when static pressure is above saturation pressure

Data Capture:

  • The basic data of test reservoir

  • Well testing log

  • Wellhead assembly

  • Tubing record

  • Surface production and measured results

  • Perforation data

  • Acidification data

  • Fracturing data

  • Well test data

  • Test construction process records

  • Accidents and problems

Output Reports:

  • Downhole operation history

  • Acidification report

  • Fracturing report

  • Perforation report

  • Well testing time breakdown

  • Daily well testing report

  • Well testing accidents and problems statistical analysis

  • Monthly well testing report, annual well testing report

  • Well testing handover and takeover rep