Successful Application of Unique High-Density Water-Based Drilling Fluid Used in Zhaotong Shale Gas Horizontal Wells

2015 ◽  
Author(s):  
Lili Yan ◽  
Congjun Li ◽  
Zhilei Zhang ◽  
Jianhua Wang ◽  
Xianguang Xu ◽  
...  
Keyword(s):  
Shale Gas ◽  
Drilling Fluid ◽  
Horizontal Wells ◽  
High Density ◽  
Water Based

Understanding and Research on the Drilling Fluid Technology for Shale Gas Horizontal Wells in South Sichuan, China

2020 ◽  
Author(s):  
Lili Yan ◽  
Jianhua Wang ◽  
Jiaqi Zhang ◽  
Rongchao Cheng ◽  
Haijun Yang ◽  
...  
Keyword(s):  
Shale Gas ◽  
Drilling Fluid ◽  
Horizontal Wells

Experimental study on water-based drilling fluid for horizontal wells

2020 ◽  
pp. 1-20 ◽  
Author(s):  
Zhaohui Wei ◽  
Yichao He ◽  
Sui Gu ◽  
Yanping Shi ◽  
Xianyu Yang ◽  
...  
Keyword(s):  
Experimental Study ◽  
Drilling Fluid ◽  
Horizontal Wells ◽  
Water Based

Study on Shale Gas Drilling Fluids Technology

2013 ◽  
Vol 868 ◽  
pp. 651-656
Author(s):  
Gang Xie ◽  
Ming Yi Deng ◽  
Jun Lin Su ◽  
Liang Chun Pu
Keyword(s):  
Shale Gas ◽  
Drilling Fluid ◽  
Blocking Agent ◽  
Drilling Fluids ◽  
Collapse Pressure ◽  
Gas Drilling ◽  
Advantages And Disadvantages ◽  
Water Based ◽  
Column Pressure ◽  
Shale Gas Drilling

Via discussing the advantages and disadvantages of different types of oil-based drilling fluids, the main reason why oil-based drilling fluids are less used in our country is obtained that dont form a complete series of matching technology. The essence of wellbore instability caused by using water-based drilling fluids to drill shale is analyzed that the formation collapse pressure is greater than drilling fluids column pressure. The fundamental way of controlling borehole wall stability that use water-based drilling fluids to drill shale horizontal well was proposed that deeply researched the shale hydration mechanism, developed efficient blocking agent and inhibitors and established shale gas drilling fluid suppression system, which made water-based drilling fluids have excellent performance.

Drilling Fluid Design for Shale Gas Drilling

2015 ◽  
Vol 1113 ◽  
pp. 617-624 ◽  
Author(s):  
Mohamad Safwan Zazarli Shah ◽  
Arina Sauki ◽  
Wan Zairani Wan Bakar ◽  
Nurul Aimi Ghazali ◽  
Azlinda Azizi
Keyword(s):  
Shale Gas ◽  
Negative Impact ◽  
Drilling Fluid ◽  
Past Research ◽  
Gas Drilling ◽  
Water Based ◽  
Oil Water ◽  
The Impact ◽  
Rheological Performance ◽  
Shale Gas Drilling

Shale gas nowadays is an important source of unconventional gas. The limited conventional gas supply makes the unconventional sources as a new source of gas. In this research, the aim is to design a mud formulation that can carry out essential functions of mud for shale gas drilling. Commonly for shale gas drilling, water based mud is used. However, water based mud is ineffective when dealing with water-sensitive shale. The alternative way to deal with this type of shale is using synthetic-based mud (SBM) or oil-based mud (OBM). OBM is an effective mud while drilling well. However, it is toxic and gives negative impact to environment. SBM somehow is more environmental friendly compared to oil based and ester is one of the synthetic based fluids. In order to prove this statement, a toxicity test was carried out to investigate the impact of ester based mud on selected marine life. The results of the test were compared with past research results. The ester use in this research is methyl-ester C12-C14 derived from palm oil and the mud was formulated at different oil-water ratios which are 70/30, 80/20 and 90/10, respectively and the best rheological performance can be seen at 80/20 oil-water ratio. Then, the performance of this mud had been compared to other types of mud which are sarapar-based and WBM. The findings revealed that the rheological performance of ester based mud is comparable with common based mud used for shale gas drilling. Apart from that, it is less toxic than other based mud which can maintain 60% prawn’s survival even after 96 hours exposure in 100,000 ppm of mud concentration in artificial seawater.

Study on Erosive and Magnetic Effects of Weighting Agent in a High Density Water-Based Drilling Fluid

2014 ◽  
Author(s):  
L.L. Yan ◽  
J.H. Wang ◽  
X.G. Xu ◽  
J. Feng ◽  
H.J. Liang ◽  
...  
Keyword(s):  
Drilling Fluid ◽  
High Density ◽  
Magnetic Effects ◽  
Water Based

Effect of perlite particles on the filtration properties of high-density barite weighted water-based drilling fluid

2020 ◽  
Vol 360 ◽  
pp. 1157-1166 ◽  
Author(s):  
Badr S. Bageri ◽  
Abdulrauf Rasheed Adebayo ◽  
Jaber Al Jaberi ◽  
Shirish Patil
Keyword(s):  
Drilling Fluid ◽  
High Density ◽  
Water Based ◽  
Filtration Properties

Research on High Density Water-Based Drilling Fluid of Complete Tectonic for the Southern Edge of the Junggar Basin

2017 ◽  
Vol 3 (2) ◽  
pp. 58-62
Author(s):  
Yuezhi Wang ◽  
◽  
Peixuan Liu ◽  
Guangfu Cao ◽  
Zhi Hu ◽  
...  
Keyword(s):  
Drilling Fluid ◽  
Junggar Basin ◽  
High Density ◽  
Water Based

scholarly journals Mechanism of wellbore instability in continental shale gas horizontal sections and its water-based drilling fluid countermeasures

2020 ◽  
Vol 7 (6) ◽  
pp. 680-688
Author(s):  
Bo Wang ◽  
Jinsheng Sun ◽  
Feng Shen ◽  
Wei Li ◽  
Wenzhe Zhang
Keyword(s):  
Shale Gas ◽  
Drilling Fluid ◽  
Wellbore Instability ◽  
Water Based
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