Synthesis and Assessment of a CO2 -Switchable Foaming Agent Used in Drilling Fluids for Underbalanced Drilling

2018 ◽  
Vol 21 (3) ◽  
pp. 375-387 ◽  
Author(s):  
Junlin Su ◽  
Wenxin Dong ◽  
Sulin Zhou ◽  
Mingyi Deng
Keyword(s):  
Drilling Fluids ◽  
Foaming Agent ◽  
Underbalanced Drilling

Use of Hollow Glass Spheres for Underbalanced Drilling Fluids

1995 ◽  
Author(s):  
George H. Medley ◽  
William C. Maurer ◽  
Ali Y. Garkasi
Keyword(s):  
Drilling Fluids ◽  
Hollow Glass ◽  
Glass Spheres ◽  
Underbalanced Drilling

scholarly journals Study on the Rheological Properties of Ultra-High Temperature CGA Drilling Fluids

2021 ◽  
Author(s):  
Wenxi Zhu ◽  
Xiuhua Zheng
Keyword(s):  
High Temperature ◽  
Rheological Properties ◽  
High Temperatures ◽  
Drilling Fluid ◽  
Drilling Fluids ◽  
Underbalanced Drilling ◽  
Deep Wells ◽  
Colloidal Gas Aphron ◽  
Oil Gas ◽  
Ultra High Temperature

Colloidal gas aphron (CGA) drilling fluids are a kind of environmentally-friendly underbalanced drilling technique, which has attracted more attention in depleted reservoirs and other low-pressure areas. With the shortage of global oil/gas resources, drilling has gradually shifted to high-temperature and deep wells. Hence, a study on the ultra-high temperature rheology properties of CGA fluids is lacking and urgently needed. In this study, a novel CGA drilling fluid system was prepared by modified starch and amino acid surfactant, and rheological properties after 120-300°C aged was investigate. Results show that: (1) Herschel-Bulkley model is the preferred model to predict CGA drilling fluid at ultra-high temperatures; (2) It was proved that CGA drilling fluid is a high-quality drilling fluid with extremely high value of LSRV and shear thinning property within 280°C. Compared to the traditional XG-based CGA drilling fluid, the improvement of LSRV at ultra-high temperatures is a significant advantage of EST-based CGA drilling fluid which is conducive to carrying cuttings and sealing formation pores.

scholarly journals Numerical study of cutting transport using aerated drilling fluids

2021 ◽  
Vol 2119 (1) ◽  
pp. 012051
Author(s):  
V A Zhigarev ◽  
S O Zazulya ◽  
A V Minakov ◽  
A L Neverov
Keyword(s):  
Fluid Flow ◽  
Horizontal Well ◽  
Numerical Study ◽  
Drilling Fluid ◽  
Rheological Parameters ◽  
Drilling Fluids ◽  
Cuttings Transport ◽  
Foaming Agent ◽  
Water Based ◽  
Drill Pipes

Abstract The paper deals with drilling fluid flow in a horizontal well during its drilling. As part of this work, rheological parameters of water-based drilling fluid with the addition of polymers and a foaming agent were used. Cuttings transport was studied at different degrees of foam aeration. Besides, the paper presents the study of the effects of drilling fluid flow, as well as the rotation of drill pipes on the cuttings transport.

scholarly journals Scale deposition mechanism and low-damage underbalanced drilling fluids for high CO 2 content gas reservoirs

2011 ◽  
Vol 38 (6) ◽  
pp. 750-755
Author(s):  
Geng Jiaojiao ◽  
Yan Jienian ◽  
Cao Ming ◽  
Bai Xiangshuang ◽  
Shi Haimin
Keyword(s):  
Drilling Fluids ◽  
Gas Reservoirs ◽  
Deposition Mechanism ◽  
Underbalanced Drilling ◽  
Scale Deposition

Functional surfaces produced by foam coating

TAPPI Journal ◽  
2016 ◽  
Vol 15 (8) ◽  
pp. 515-521 ◽  
Author(s):  
EIJA KENTTÄ ◽  
HANNA KOSKELA ◽  
SARA PAUNONEN ◽  
KARITA KINNUNEN-RAUDASKOSKI ◽  
TUOMO HJELT
Keyword(s):  
Life Time ◽  
Silica Coating ◽  
Foaming Properties ◽  
Coated Paper ◽  
Paper Properties ◽  
Foaming Agent ◽  
Foaming Agents ◽  
Size Stability ◽  
Stability Measurement ◽  
Standard Paper

This paper reports experiments on silica coating formulations that are suitable for application as a thin pigment layer with foam coating technique on a paper web. To understand the foaming properties of nanosilica dispersions, the critical micelle concentration, foam half-life time, and foam bubble size stability were determined with three different foaming agents. The results indicate that the bubble stability measurement is a useful characterization method for foam coating purposes. Pilot foam coating trials were done and the effects of the chosen foaming agents were studied on the properties of the nanosilica-coated paper. The surface hydrophilicity of silica coated paper was related not only to silica pigment, but also to the chemical nature of the foaming agent. Standard paper properties were not affected by the thin silica coating.

Sign in / Sign up

Export Citation Format

Share Document