Schlumberger

Case Study: MONGOOSE PRO Dynamic Dual-Motion Shale Shakers Reduce Screen Consumption and Cost by 70%

Challenge: Lower operating costs by reducing screen replacements and improving mud recovery efficiency onshore Pakistan.

Solution: Perform a side-by-side screen replacement comparison between a conventional shaker and the MONGOOSE PRO dynamic dual-motion shale shaker while drilling the second phase of a sidetrack section.

Result: Achieved longer screen life, improved mud recovery efficiency, and saved significant costs.

Reduce the number of screen replacements and lower the operating costs 

Operating onshore Pakistan, an operator was drilling an 8 1/2-in sidetrack section measuring 7,195 ft [2,193 m] in length with ULTRADRIL high-performance water-base drilling fluid system with 7% potassium chloride. During the operation, the operator was replacing a high number of screens on three shakers installed at the rig. After 15 days of drilling, 130 screens had been replaced. The operator sought to control screen consumption and costs as well as improve mud recovery efficiency when drilling the second phase of the sidetrack section. 

Compare MONGOOSE PRO shakers with conventional shakers in side-by-side test 

M-I SWACO rigged up two MONGOOSE PRO dual-motion shale shakers to perform a side-by-side performance comparison with one conventional shaker on the rig. Both types of shakers were dressed with API-200 original equipment manufacturer screens. As with the first drilling phase, the ULTRADRIL drilling fluid system with 7% potassium chloride was used during drilling. Screen damage, operational hours, changeout date, flowline temperature, and other data were carefully monitored by M-I SWACO and the operator. 

Achieved longer screen life and lower screen prices for time and cost savings 

While drilling the second phase of the sidetrack section, 27 screens were changed on the conventional shaker, but an average of only 9.5 screens was changed per MONGOOSE PRO shaker, demonstrating a 65% decrease in screen replacement on a per-shaker basis. The total cost savings in terms of screens was USD 13,200, a 70% reduction compared with the conventional shaker and screen combination. Using the MONGOOSE PRO shaker setup, the operator completed the second phase of the sidetrack in 12 days. Because of the performance demonstrated by the two MONGOOSE PRO shakers, the operator decided to remove the conventional shaker before drilling the final 6-in [15.2-cm] section of the well and used the two MONGOOSE PRO shakers while drilling this section. During drilling of the 6-in section, the two MONGOOSE PRO shakers each used only one screen. In comparison, the average conventional screen consumption on previous wells for similar 6-in sections was a minimum of 25 screens per section.


Download: MONGOOSE PRO Dynamic Dual-Motion Shale Shakers Reduce Screen Consumption and Cost by 70% (0.15 MB PDF)

Related services and products

 
Contact Us

Longer Shaker Screen Life Provides Significant Cost Savings in Pakistan

Compared with the conventional shaker, the MONGOOSE PRO shakers enabled longer screen life and used fewer screens over the operation, achieving greater mud recovery efficiency at significantly less cost.
PrevNextZoom1 of 1