Comparative research of filtration reducers based on carboximethyl esters of starch and cellulose in modern drilling mud systems
The importance of the research is related to the need to reduce the cost of polysaccharide reagents used in drilling fluids, and, therefore, the cost of well construction. This line of research will allow determining the field of application of reagents based on carboxymethyl starch in modern mud fo...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | Russian |
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Tomsk Polytechnic University
2018-06-01
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| Series: | Известия Томского политехнического университета: Инжиниринг георесурсов |
| Subjects: | |
| Online Access: | http://izvestiya-tpu.ru/archive/article/view/2030 |
| _version_ | 1797812464214081536 |
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| author | Konstantin Madestovich Minaev Vyacheslav Alexandrovich Yanovsky Daria Olegovna Minaeva Aleksey Sergeevich Zakharov Rashid Ravilevich Sagitov Mikhail Olegovich Andropov Sushil Kumar Pandey |
| author_facet | Konstantin Madestovich Minaev Vyacheslav Alexandrovich Yanovsky Daria Olegovna Minaeva Aleksey Sergeevich Zakharov Rashid Ravilevich Sagitov Mikhail Olegovich Andropov Sushil Kumar Pandey |
| author_sort | Konstantin Madestovich Minaev |
| collection | DOAJ |
| description | The importance of the research is related to the need to reduce the cost of polysaccharide reagents used in drilling fluids, and, therefore, the cost of well construction. This line of research will allow determining the field of application of reagents based on carboxymethyl starch in modern mud formulation. The aim of the research is the prospect of using carboxymethyl starch in modern drilling mud as a filtration reducing agent and an alternative to low-viscosity polyanionic cellulose reagents and evaluating the stability of drilling fluids using these reagents to salt effects, temperatures and biological degradation. Objects: modern systems of polymerclay, mineralized polymerclay and biopolymer drilling fluids containing filtering reducers based on carboxymethylated cellulose and starch. Research methods: instrumental methods for determining drilling muds parameters according to State Standard 33213-2014 and guidance document RD 39-00147001-773-2004 (filtration and rheological properties); properties of polysaccharide reagents according to ASTM D1439-15. Results. The authors have carried out the comparative studies of polymerclay and biopolymer drilling muds using carboxymethyl starch and low viscosity polyanionic cellulose as filtering reducers. It is shown that drilling muds using low viscosity polyanionic cellulose have greater plastic viscosity and dynamic stress, but the structural and mechanical properties of drilling muds are higher when introducing carboxymethyl starch. The latter, as a filtration reducer, has low efficiency in mineralized drilling fluids, while at low temperatures it provides a virtually equal filtration in polymerclay and biopolymer solutions, in comparison with polyanionic cellulose. It is determined that carboxymethyl starch can be used as an alternative to low viscosity polyanionic cellulose in polymerclay and biopolymer drilling mudswhen drilling wells with moderate bottom hole temperatures. The results. The authors have calculated thermodynamic properties using regression analysis. The paper demonstrates a good correspondence of the experimental data, based on the literary sources, and calculation of the values of enthalpy and entropy of formation for alkaline silicates. The calculation of thermodynamic properties by minimizing free energy and the model of ideal solid solutions of mixed-layer aluminosilicates allowed determining the summary stoichiometric formula, Gibbs energy, enthalpy of formation and entropy of montmorillonites and chlorites by chemical composition. The obtained values are comparable with the results of melt calorimetry of dissolution and reference data in accuracy. The results showed that the chemical composition of monomineral fractions is not ideal. The refore, if the mineral formula is known in advance, the calculation of thermodynamic properties by minimizing the thermodynamic potentials is more convenient to perform on the stoichiometric formula, correcting the list of minals of the solid solution. |
| first_indexed | 2024-03-13T07:37:53Z |
| format | Article |
| id | doaj.art-a3dd532680c44c6fa84961a6dd9b157e |
| institution | Directory Open Access Journal |
| issn | 2500-1019 2413-1830 |
| language | Russian |
| last_indexed | 2024-03-13T07:37:53Z |
| publishDate | 2018-06-01 |
| publisher | Tomsk Polytechnic University |
| record_format | Article |
| series | Известия Томского политехнического университета: Инжиниринг георесурсов |
| spelling | doaj.art-a3dd532680c44c6fa84961a6dd9b157e2023-06-03T21:10:36ZrusTomsk Polytechnic UniversityИзвестия Томского политехнического университета: Инжиниринг георесурсов2500-10192413-18302018-06-013295Comparative research of filtration reducers based on carboximethyl esters of starch and cellulose in modern drilling mud systemsKonstantin Madestovich MinaevVyacheslav Alexandrovich YanovskyDaria Olegovna MinaevaAleksey Sergeevich ZakharovRashid Ravilevich SagitovMikhail Olegovich AndropovSushil Kumar PandeyThe importance of the research is related to the need to reduce the cost of polysaccharide reagents used in drilling fluids, and, therefore, the cost of well construction. This line of research will allow determining the field of application of reagents based on carboxymethyl starch in modern mud formulation. The aim of the research is the prospect of using carboxymethyl starch in modern drilling mud as a filtration reducing agent and an alternative to low-viscosity polyanionic cellulose reagents and evaluating the stability of drilling fluids using these reagents to salt effects, temperatures and biological degradation. Objects: modern systems of polymerclay, mineralized polymerclay and biopolymer drilling fluids containing filtering reducers based on carboxymethylated cellulose and starch. Research methods: instrumental methods for determining drilling muds parameters according to State Standard 33213-2014 and guidance document RD 39-00147001-773-2004 (filtration and rheological properties); properties of polysaccharide reagents according to ASTM D1439-15. Results. The authors have carried out the comparative studies of polymerclay and biopolymer drilling muds using carboxymethyl starch and low viscosity polyanionic cellulose as filtering reducers. It is shown that drilling muds using low viscosity polyanionic cellulose have greater plastic viscosity and dynamic stress, but the structural and mechanical properties of drilling muds are higher when introducing carboxymethyl starch. The latter, as a filtration reducer, has low efficiency in mineralized drilling fluids, while at low temperatures it provides a virtually equal filtration in polymerclay and biopolymer solutions, in comparison with polyanionic cellulose. It is determined that carboxymethyl starch can be used as an alternative to low viscosity polyanionic cellulose in polymerclay and biopolymer drilling mudswhen drilling wells with moderate bottom hole temperatures. The results. The authors have calculated thermodynamic properties using regression analysis. The paper demonstrates a good correspondence of the experimental data, based on the literary sources, and calculation of the values of enthalpy and entropy of formation for alkaline silicates. The calculation of thermodynamic properties by minimizing free energy and the model of ideal solid solutions of mixed-layer aluminosilicates allowed determining the summary stoichiometric formula, Gibbs energy, enthalpy of formation and entropy of montmorillonites and chlorites by chemical composition. The obtained values are comparable with the results of melt calorimetry of dissolution and reference data in accuracy. The results showed that the chemical composition of monomineral fractions is not ideal. The refore, if the mineral formula is known in advance, the calculation of thermodynamic properties by minimizing the thermodynamic potentials is more convenient to perform on the stoichiometric formula, correcting the list of minals of the solid solution.http://izvestiya-tpu.ru/archive/article/view/2030carboxymethyl starchcarboxymethyl cellulosepolyanionic cellulosephysico-chemical modelingdrilling mudfiltration reducer |
| spellingShingle | Konstantin Madestovich Minaev Vyacheslav Alexandrovich Yanovsky Daria Olegovna Minaeva Aleksey Sergeevich Zakharov Rashid Ravilevich Sagitov Mikhail Olegovich Andropov Sushil Kumar Pandey Comparative research of filtration reducers based on carboximethyl esters of starch and cellulose in modern drilling mud systems Известия Томского политехнического университета: Инжиниринг георесурсов carboxymethyl starch carboxymethyl cellulose polyanionic cellulose physico-chemical modeling drilling mud filtration reducer |
| title | Comparative research of filtration reducers based on carboximethyl esters of starch and cellulose in modern drilling mud systems |
| title_full | Comparative research of filtration reducers based on carboximethyl esters of starch and cellulose in modern drilling mud systems |
| title_fullStr | Comparative research of filtration reducers based on carboximethyl esters of starch and cellulose in modern drilling mud systems |
| title_full_unstemmed | Comparative research of filtration reducers based on carboximethyl esters of starch and cellulose in modern drilling mud systems |
| title_short | Comparative research of filtration reducers based on carboximethyl esters of starch and cellulose in modern drilling mud systems |
| title_sort | comparative research of filtration reducers based on carboximethyl esters of starch and cellulose in modern drilling mud systems |
| topic | carboxymethyl starch carboxymethyl cellulose polyanionic cellulose physico-chemical modeling drilling mud filtration reducer |
| url | http://izvestiya-tpu.ru/archive/article/view/2030 |
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