- TIAN Ming-jin
TIAN Ming-jin
Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring (Central South University), Ministry of Education
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Search for this author on this site - SUN Ping-he
SUN Ping-he
Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring (Central South University), Ministry of Education
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Search for this author on this site - CAO Han
CAO Han
Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring (Central South University), Ministry of Education
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Search for this author on this site - WU Yi-duo
WU Yi-duo
Dalhousie University, Halifax, Nova Scotia
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Search for this author on this site - ZHANG Shao-he
ZHANG Shao-he
Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring (Central South University), Ministry of Education
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Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring (Central South University), Ministry of Education,Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring (Central South University), Ministry of Education,Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring (Central South University), Ministry of Education,Dalhousie University, Halifax, Nova Scotia,Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring (Central South University), Ministry of Education
P634.6
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This paper presents a kind of liquid ionic consolidation agent, and this agent can effectively improve mechanical strength of shale gas wells. Through laboratory experiments, the basic properties of the drilling fluid treated with the liquidionic consolidation agent and inhibition of this kind of drilling fluid on the expansion of carbonaceous shale and effects of this kind of drilling fluid on mechanical strength ofcarbonaceous shale were uncovered. The drilling fluid''s filtration decreased and then in creased with the increase of the concentration of the liquid ionic consolidation agent.The expansion rate of the compressed core in the drilling fluid was lower than that inclear water. But with the increaseof the liquid ionic consolidation agent, the expansion rate of the compressed core in the drilling fluid was higher and higher. The shear strength of the shear specimens treated with the drilling fluid was higher than that treated with water. With the increase of the liquid ionic consolidation agent, the shear strength of shear specimens increased and then decreased, and the uniaxial compressive strength of the samples were increased. The results demonstrate that liquid ionic consolidation agent in suitable content range helps to enhance the ability of drilling fluid to maintain the stability of borehole wall.
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History
- Received:July 16,2016
- Revised:September 07,2016
- Adopted:September 08,2016
- Online: November 22,2016
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