Clariant Oil Services’ Deliquification Strategy Enhances Production by 400% for Canadian Operator
- Clariant Oil Services’ carefully-planned interventions saved this well from being shut-in and abandoned
- Maximized production due to a combination treatment using continuous injection and batch treatment
- Optimized chemical delivery strategy using a service-driven approach and attention to detail
A low pressure, low rate gas well in Northern Alberta made a pronounced amount of bitumen that led to very dense hydrocarbon deposits in the tubing. The well’s low pressure made it very sensitive to water production, and accumulation of just one or two cubic meters of produced water in the tubing would kill production.
Clariant Oil Services was already successfully treating the well with a liquid chemical foamer enhancement program, which included the injection of eight liters of WellBoost™ 115* per day – a moderately active, foam-producing product blended in a strong solvent matrix. This product worked very well by not only deliquifying the well on a continuous basis, but also controlling the deposition of bitumen in the production tubing. Unfortunately, a pump malfunction led to significant challenges maintaining production from the well, and detailed intervention by Clariant Oil Services was required.
Clariant Oil Services Solutions and Value Delivered
Clariant Oil Services was able to boost production from 0.9 e3m3 per day (31.9 Mscfd) to just under 4.5 e3m3 per day (159.7 Mscfd) - an increase of 400%. Production could not be returned to pre-pump malfunction levels even by modifying the rate of continuously-injected product or by rocking the well or by any other operational means available.
After spending some time on the well working closely with the operators, it was decided to design a batch treatment to kick-start the well back into production. A 20-liter batch of WellBoost™ 131**, a high-activity foaming product combined with aromatic solvents, was applied down the backside of the well. After a brief shut-in period the well was brought back online and, when combined with the continuously-injected WellBoost 115, production resumed to pre-malfunction levels.
This attention to detail and impeccable service delivered great value to the operator and removed the necessity to shut-in and abandon the well.
This information corresponds to the present state of our knowledge and is intended as a general description of our products and their possible applications. Clariant makes no warranties, express or implied, as to the information’s accuracy, adequacy, sufficiency or freedom from defect and assumes no liability in connection with any use of this information. Any user of this product is responsible for determining the suitability of Clariant's products for its particular application.*Nothing included in this information waives any of Clariant’s General Terms and Conditions of Sale, which control unless it agrees otherwise in writing. Any existing intellectual/industrial property rights must be observed. Due to possible changes in our products and applicable national and international regulations and laws, the status of our products could change. Material Safety Data Sheets providing safety precautions, that should be observed when handling or storing Clariant products, are available upon request and are provided in compliance with applicable law. You should obtain and review the applicable Material Safety Data Sheet information before handling any of these products. For additional information, please contact Clariant.
*For sales to customers located within the United States and Canada the following applies in addition: NO EXPRESS OR IMPLIED WARRANTY IS MADE OF THE MERCHANTABILITY, SUITABILITY, FITNESS FOR A PARTICULAR PURPOSE OR OTHERWISE OF ANY PRODUCT OR SERVICE.
™ Trademark application filed in many countries by Clariant
* Previously sold as SOLVTREAT® EFI-204
** Previously sold as SOLVTREAT® 8558