Wellbore Stability Performance of Water Base Mud Additives

2008 ◽  
Author(s):  
Russell T. Ewy ◽  
Edward Keith Morton
Keyword(s):  
Wellbore Stability ◽  
Stability Performance ◽  
Water Base

Wellbore-Stability Performance of Water-Based Mud Additives

2009 ◽  
Vol 24 (03) ◽  
pp. 390-397 ◽  
Author(s):  
Russell T. Ewy ◽  
E. Keith Morton
Keyword(s):  
Wellbore Stability ◽  
Stability Performance ◽  
Water Based

High Performance Water Base Fluid Improves Wellbore Stability and Lowers Torque

2016 ◽  
Author(s):  
E. DeNinno ◽  
M. Molina ◽  
J. Shipman ◽  
H. Dearing ◽  
F. Arpini ◽  
...  
Keyword(s):  
Base Fluid ◽  
High Performance ◽  
Wellbore Stability ◽  
Water Base

A Highly Successful Way to Consistently Drill to Target Depth with Nano Polymer Water-Based Mud in a Highly Active, Problematic Shale Interval

2021 ◽  
Author(s):  
Tulio Daniel Olivares ◽  
Rafael M Pino ◽  
Walid Al-Zahrani ◽  
Samy Mahmoud Aly ◽  
Mohamed El Nahas
Keyword(s):  
High Performance ◽  
New Technology ◽  
Effective Field ◽  
Wellbore Stability ◽  
Fluid Viscosity ◽  
Highly Active ◽  
Water Based ◽  
The Face ◽  
Water Base ◽  
High Level

Abstract The operational drilling history in a particularly challenging shale consistently shows that once the formation's shale reacts, and starts to disperse, in the face of a typical water base mud application, a variety of hole problems are experienced by the operator. These problems include wellbore instability caused by an unstoppable sloughing of the shale; the experiencing of tight hole conditions while performing the wiper trip; caved shale sticking to shakers while drilling; an increased dilution rate due to mud weight; a low LGS % (low gravity solids), and fluid viscosity. To solve this longstanding drilling challenge, a team formed from operator and service provider experts determined via high-level research and testing the need for an innovative new technology of inhibitive fluid chemistry. After extensive testing, the team determined that a particular environmentally friendly Nano Polymer high-performance water-based mud (HPWBM)—one possessing the unique shale inhibition and cutting encapsulation capabilities capable of stabilizing this sticky shale—was the best fit for this application. We will present the investigational learning and effective field trial drilling of high problematic shale that was evaluated during and subsequently the utilization of nanoparticles (NP) to advance water-based mud (WBM) inhibition properties, proven to offer an eco-friendly Nano Polymer HPWBM substitute with the improved thermal and rheological permanency of the overall WBM formulation. Results will display that while providing more effective drilling and wellbore stability, this technology is also a far cleaner industry alternative.

Rheological Properties of Water Based Drilling Fluid in Deep Water Drilling Conditions

2013 ◽  
Vol 318 ◽  
pp. 507-512 ◽  
Author(s):  
Qian Sheng Yue ◽  
Qing Zhi Yang ◽  
Shu Jie Liu ◽  
Bao Sheng He ◽  
You Lin Hu
Keyword(s):  
Low Temperature ◽  
Rheological Property ◽  
Deep Water ◽  
Viscosity Ratio ◽  
Drilling Fluid ◽  
Wellbore Stability ◽  
Water Soluble ◽  
Water Medium ◽  
Water Based ◽  
Water Base

The rheological property of the drilling fluid was one of the focus problems in deep-water drilling, which was widely concerned. In the article, the viscosity-temperature properties of commonly used water soluble polymeric solution, polymeric brine solution, bentonite slurry, polyacrylamide-potassium chloride drilling fluid with different densities and water-base drilling fluid systems commonly used for China offshore well drillings were studied. 4°C-to-20°C viscosity ratio and 4°C-to-20°C YP ratio were used to judge the thickening level of drilling fluids due to low temperature. The experimental results show that on the condition of without considering the influence of pressure on the rheological property of water-base drilling fluid, its viscosity and yield point raised obviously with the decrease of temperature, but the increase level is proximately the same, its 4°C-to-20°C apparent viscosity ratio is basically within the 1.50. Analysis indicates that the viscosity of water-base drilling fluid depends on the viscosity of dispersed media. The performance of water medium determines the viscosity-temperature property of the water-based drilling fluid. It is proposed that in deep water drillings, if a water-base drilling fluid is used, it is not necessary to emphasize the influence of deep water and low temperature on the flowability. On the condition of guaranteeing wellbore stability and borehole cleaning, it is more suitable for using the water-base drilling fluid with low viscosity and low gel strength for deep water well drillings.

Scientific and technological aspects and prospects for application of cryogenic drilling technology

2020 ◽  
pp. 54-62
Author(s):  
A. B. Tulubaev ◽  
E. V. Panikarovskii
Keyword(s):  
Low Temperatures ◽  
Western Siberia ◽  
Wellbore Stability ◽  
Drilling Mud ◽  
Chemical Reagent ◽  
Production Chain ◽  
Foreign Experience ◽  
Permafrost Rocks ◽  
The North ◽  
Drilling Technology

In the article, we analyze types of drilling mud, which are used to drilling intervals of permafrost rocks; the importance of wellbore stability is noted. Wedescribethemain technologies, which have been being applied in the north of Western Siberia; these technologies are aimed at minimizing the loss wellbore stability due to violation of the temperature conditions in the well. We also analyze hydrocarbon systems, taking into account foreign experience, which is based on prospecting and exploratory drilling of ice deposits in Greenland and Antarctica. The article draws your attention to using synthetic fluids, monoesters and chladones. The difficulties of the existing technology and the disadvantages of the hydrocarbon systems are highlighted. We propose to apply a new cryogenic drilling technology, which consists in the use of synthetic fluorine-containing agents as flushing fluid at low temperatures. The text gives valuable information on composition of the proposed flushing fluid and the prospects of using the technology to prevent complications. Much attention is given to issue of manufacturing the main chemical reagent with the reduction of the generalized production chain of its production from the starting material, it is fluorspar.

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