Construction and Application of Flocculation and Destability System of Biodrill-A Drilling Fluid in Bohai Oilfield

To protect the marine ecological environment of Bohai Bay, the waste drilling fluid in Bohai oilfield have to be treated. In the light of the composition characteristics of Biodrill-A drilling fluid, the compounding method of the inorganic–organic flocculants was adopted to assist the flocculation a...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Yingwen Ma, Yuchen Zhang, Yang Liu, Ming Yue, Dongsen Wang, Xuemei Zhang
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	composite flocculation system solid–fluid separation biodrill-A drilling fluid flocculation mechanism Bohai oilfield General Works A
Acceso en línea:	https://doaj.org/article/e123b6373fd140f0b8d1ee363ee9383b
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:e123b6373fd140f0b8d1ee363ee9383b
record_format	dspace
spelling	oai:doaj.org-article:e123b6373fd140f0b8d1ee363ee9383b2021-12-02T09:28:36ZConstruction and Application of Flocculation and Destability System of Biodrill-A Drilling Fluid in Bohai Oilfield2296-598X10.3389/fenrg.2021.796773https://doaj.org/article/e123b6373fd140f0b8d1ee363ee9383b2021-12-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fenrg.2021.796773/fullhttps://doaj.org/toc/2296-598XTo protect the marine ecological environment of Bohai Bay, the waste drilling fluid in Bohai oilfield have to be treated. In the light of the composition characteristics of Biodrill-A drilling fluid, the compounding method of the inorganic–organic flocculants was adopted to assist the flocculation and solid–fluid separation of Biodrill-A drilling fluid. Through the orthogonal test design, the main factors impacting the flocculation effect on Biodrill-A drilling fluid were found to the concentration of inorganic flocculant CaCl2 and the flocculation pH value. The optimal flocculation treatment was further obtained through single-factor optimization. Specifically, when the inorganic flocculant CaCl2 concentration was 0.9 w/v%, the organic flocculant concentration was 0.01 w/v%, the flocculation pH was 8, and the flocculation time was 7 min. Eventually, the final dewatering rate could reach 84.02%. In the optimized compound flocculants, the inorganic flocculant CaCl2 reduced the zeta potential of clay particles by electric neutralization to decrease the repulsion among particles, and the organic one could absorb and wrap the clay particles through bridging curling and electric neutralization after flocculation destabilization. Both inorganic and organic flocculants facilitated the large flocs and particles of clay particles. The field test showed that the inorganic–organic flocculants were suitable for the on-line flocculation treatment process based on centrifugal machine. The waste drilling fluid was reduced by 82%, and the water content of the separated solid phase was as low as 25.7%.Yingwen MaYuchen ZhangYang LiuMing YueDongsen WangXuemei ZhangFrontiers Media S.A.articlecomposite flocculation systemsolid–fluid separationbiodrill-A drilling fluidflocculation mechanismBohai oilfieldGeneral WorksAENFrontiers in Energy Research, Vol 9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	composite flocculation system solid–fluid separation biodrill-A drilling fluid flocculation mechanism Bohai oilfield General Works A
spellingShingle	composite flocculation system solid–fluid separation biodrill-A drilling fluid flocculation mechanism Bohai oilfield General Works A Yingwen Ma Yuchen Zhang Yang Liu Ming Yue Dongsen Wang Xuemei Zhang Construction and Application of Flocculation and Destability System of Biodrill-A Drilling Fluid in Bohai Oilfield
description	To protect the marine ecological environment of Bohai Bay, the waste drilling fluid in Bohai oilfield have to be treated. In the light of the composition characteristics of Biodrill-A drilling fluid, the compounding method of the inorganic–organic flocculants was adopted to assist the flocculation and solid–fluid separation of Biodrill-A drilling fluid. Through the orthogonal test design, the main factors impacting the flocculation effect on Biodrill-A drilling fluid were found to the concentration of inorganic flocculant CaCl2 and the flocculation pH value. The optimal flocculation treatment was further obtained through single-factor optimization. Specifically, when the inorganic flocculant CaCl2 concentration was 0.9 w/v%, the organic flocculant concentration was 0.01 w/v%, the flocculation pH was 8, and the flocculation time was 7 min. Eventually, the final dewatering rate could reach 84.02%. In the optimized compound flocculants, the inorganic flocculant CaCl2 reduced the zeta potential of clay particles by electric neutralization to decrease the repulsion among particles, and the organic one could absorb and wrap the clay particles through bridging curling and electric neutralization after flocculation destabilization. Both inorganic and organic flocculants facilitated the large flocs and particles of clay particles. The field test showed that the inorganic–organic flocculants were suitable for the on-line flocculation treatment process based on centrifugal machine. The waste drilling fluid was reduced by 82%, and the water content of the separated solid phase was as low as 25.7%.
format	article
author	Yingwen Ma Yuchen Zhang Yang Liu Ming Yue Dongsen Wang Xuemei Zhang
author_facet	Yingwen Ma Yuchen Zhang Yang Liu Ming Yue Dongsen Wang Xuemei Zhang
author_sort	Yingwen Ma
title	Construction and Application of Flocculation and Destability System of Biodrill-A Drilling Fluid in Bohai Oilfield
title_short	Construction and Application of Flocculation and Destability System of Biodrill-A Drilling Fluid in Bohai Oilfield
title_full	Construction and Application of Flocculation and Destability System of Biodrill-A Drilling Fluid in Bohai Oilfield
title_fullStr	Construction and Application of Flocculation and Destability System of Biodrill-A Drilling Fluid in Bohai Oilfield
title_full_unstemmed	Construction and Application of Flocculation and Destability System of Biodrill-A Drilling Fluid in Bohai Oilfield
title_sort	construction and application of flocculation and destability system of biodrill-a drilling fluid in bohai oilfield
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/e123b6373fd140f0b8d1ee363ee9383b
work_keys_str_mv	AT yingwenma constructionandapplicationofflocculationanddestabilitysystemofbiodrilladrillingfluidinbohaioilfield AT yuchenzhang constructionandapplicationofflocculationanddestabilitysystemofbiodrilladrillingfluidinbohaioilfield AT yangliu constructionandapplicationofflocculationanddestabilitysystemofbiodrilladrillingfluidinbohaioilfield AT mingyue constructionandapplicationofflocculationanddestabilitysystemofbiodrilladrillingfluidinbohaioilfield AT dongsenwang constructionandapplicationofflocculationanddestabilitysystemofbiodrilladrillingfluidinbohaioilfield AT xuemeizhang constructionandapplicationofflocculationanddestabilitysystemofbiodrilladrillingfluidinbohaioilfield
_version_	1718398155260690432

Construction and Application of Flocculation and Destability System of Biodrill-A Drilling Fluid in Bohai Oilfield

Ejemplares similares