Exercise 9 - TA Version

Exercise 9 - TA Version - PGE 430 Lab Exercise 9 To: From:...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
PGE 430 Lab Exercise 9 To: Drilling Manager From: Student Name - TA Version (+0.5 for memo style) RE: Gomez Field Problems, Fort Stockton, Texas Unstable Wolfcamp shale has posed serious drilling problems in the subject field. Recommendations to solve this problem followed by a discussion of the recommendations is presented next. Recommendations: The emulsifier should be increased from 0.25 to 1 lb/bbl of mud. This will immediately stop the formation of free water in the mud by creating a stable emulsion. The activity of the mud should be adjusted to be in equilibrium with the shale by adding 6.7 lb/bbl of CaCl2. These recommendations will stop any water from contacting and disrupting the shale. These two recommendations must be made (+2 pts). Discussion: The current mud shows an electrical stability (ES) of 65 volts and has 1 ml of free water in the filtrate. An unstable emulsion allows water to separate from the emulsion and become a continuous phase. The water will then act as filtrate and invade the formations around the bore hole.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 02/13/2012 for the course PGE 430 taught by Professor Chenevert during the Spring '06 term at University of Texas at Austin.

Page1 / 3

Exercise 9 - TA Version - PGE 430 Lab Exercise 9 To: From:...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online