Use of silicate-based drilling fluids to ensure wellbore stability
UDC: 622.248
DOI: 10.33285/0130-3872-2022-2(350)-20-24
Authors:
GULUZADE TURAL
1
1 Azerbaijan State University of Oil and Industry, Baku, Azerbaijan
Keywords: dispersion, sedimentation, gelatinous, filtration, capping
Annotation:
Oil- and synthetic-based drilling fluids are considered more effective when drilling in the intervals where complications are likely to occur. But today it is more profitable to replace these fluids by new and technologically more efficient water-based drilling fluids. An example is a silicate drilling fluid, which is an improved version of water-based drilling fluid and has been used in drilling practice for many years. Silicate fluids are clay inhibiting fluids containing sodium or potassium silicate as an inhibiting element. Compounds of silicate anions and colloidal silica gel, creating an interlayer of silica in clays, isolate micro-cracks and stabilize the wellbore. The use of silicate solutions in more than 200 wells around the world has proven successful. In more than 20 wells in India, replacementof petroleum-based diesel drilling fluids by silicate fluids has shown good results. It has been experimentally proven that in terms of wellbore stability and from an economic point of view, silicate mud is an excellent alternative to oil-based drilling fluids.
Bibliography:
1. New Insight into the Mechanisms of Shale Inhibition Using Water Based Silicate Drilling Fluids paper / L. Bailey, B. Craster, C. Sawdon [et al.] // IADC/SPE Drilling Conf., March 3–6, Dallas, Texas. – 1998. – DOI: 10.2118/39401-MS
2. Silicate Based Drilling Fluids: A Highly Inhibitive Mud System Offering HS&E Benefits Over Traditional Oil Based Muds / M. McDonald, R. Reifsnyder, V. Sidorkiewicz, D. LaPlant // AADE 2002 Technology Conf. “Drilling & Completion Fluids and Waste Management”, April 2-3, Houston, Texas. – 2002. – URL: https://www.aade.org/application/files/2215/7295/5852/AADE-02-DFWM-HO-29.pdf
3. Urquhart J.C. Back to the Future in Silicate Drilling Fluids // World Oil. – 1998. – Vol. 219, No. 10. – P. 61–64.
4. Tare U., Mody F. Stabilizing boreholes while drilling reactive shale formations with silicate-based drilling fluids // Drilling Contractor. – 2000. – May/June. – P. 42–44. – URL: http://www.iadc.org/dcpi/dc-mayjun00/m-baroid.pdf
5. New Insight into the Mechanisms of Shale Inhibition using Water Based Silicate Drilling Fluids / L. Bailey, B. Craster, C. Sawdon [et al.] // IADC/SPE Drilling Conf., March 3–6, Dallas, Texas. – 1998. – DOI: 10.2118/39401-MS
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