Swelling Mechanisms Assessment of Water-Based Drilling Mud by Polyvinyl Alcohol

Danielle Poungui, Yuichi Sugai, Kyuro Sasaki, Ronald Nguele

研究成果: 書籍/レポート タイプへの寄稿会議への寄与

抄録

Swelling control is an elaborated balancing of solid-liquid ratios in the mud, influencing crucial physiochemical features. Mechanical swelling control methods showing limitations drove recent researchers to consider chemical agents, including polyvinyl alcohol (PVOH). PVOH is known to have a swelling ability to improve mud rheology. The present study investigates the synergy of PVOH and Bentonite in an aqueous environment by analyzing the effluents samples. Three types of PVOH were selected: a standard PVOH and two modified PVOHs (a non-ionic group PVOH and a cationic group PVOH-3 attached to the carbon backbone. Except for the control sample (sample without polymer), PVOHs were added to different mud samples at ranging concentrations of 0.1 wt.% to 0.5 wt.%; each has a bulk volume of 400 ml. Each mud sample was filtrated at room temperature under an applied pressure of 1.28 MPa for 5 hours. The samples' effluents were then analyzed for polymer adsorption. Preliminary filtration tests revealed further effluent production reduction with increased PVOH concentration. Compared to the control sample, samples containing standards PVOH-1, Non-ionic PVOH-2, and Cationic PVOH-3, respectively, had their mud cake mass increase of 48%, 36%, and 38%, while respectively having filtrate recovery reduction of 21%, 19%, and 43%. Adsorption tests showed mud swelling owes primarily to hydrogen bonding which is counteracted by the presence of a charged group. Mud swelling is, therefore, dependent on the rate of hydrogen bounding in a system.

本文言語英語
ホスト出版物のタイトルSociety of Petroleum Engineers - SPE Asia Pacific Oil and Gas Conference and Exhibition 2022, APOG 2022
出版社Society of Petroleum Engineers
ISBN(電子版)9781613998601
DOI
出版ステータス出版済み - 2022
イベント2022 SPE Asia Pacific Oil and Gas Conference and Exhibition, APOG 2022 - Adelaide, オーストラリア
継続期間: 10月 17 202210月 19 2022

出版物シリーズ

名前Society of Petroleum Engineers - SPE Asia Pacific Oil and Gas Conference and Exhibition 2022, APOG 2022

会議

会議2022 SPE Asia Pacific Oil and Gas Conference and Exhibition, APOG 2022
国/地域オーストラリア
CityAdelaide
Period10/17/2210/19/22

!!!All Science Journal Classification (ASJC) codes

  • エネルギー工学および電力技術
  • 燃料技術

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