文献类型：期刊文献

英文题名：Study on Factors Influencing the Viscosity of Sodium Carboxymethyl Cellulose Used in Capsule-Mucous Sealers

作者：Wang, Fakai Sun, Zhongguang Li, Xuelong Wang, Kequan Chen, Deyou Li, Zhen

第一作者：王法凯

通信作者：Li, XL[1];Li, XL[2]

机构：[1]Guizhou Inst Technol, Coll Min Engn, Guiyang 550000, Peoples R China;[2]State Key Lab Gas Disaster Detecting Preventing &, Chongqing 400037, Peoples R China;[3]Chongqing Univ, Coll Resources & Environm Sci, State Key Lab Coal Mine Disaster Dynam & Control, Chongqing 400044, Peoples R China;[4]Chongqing Res Inst, China Coal Technol & Engn Grp, Chongqing 400039, Peoples R China;[5]Shandong Univ Sci & Technol, Coll Energy & Min Engn, Qingdao 266590, Shandong, Peoples R China

第一机构：贵州理工学院矿业工程学院

通信机构：corresponding author), State Key Lab Gas Disaster Detecting Preventing &, Chongqing 400037, Peoples R China;corresponding author), Shandong Univ Sci & Technol, Coll Energy & Min Engn, Qingdao 266590, Shandong, Peoples R China.

年份：2022

卷号：2022

外文期刊名：GEOFLUIDS

收录：;Scopus(收录号：2-s2.0-85124281546);WOS:【SCI-EXPANDED(收录号:WOS:000783670300002)】；

基金：THis work was financially supported by the Science Innovation and Entrepreneurship Special Funded Projects of China Coal Technology& Engineering Group (Grant No. 2020-TD-ZD007), the Natural Science Foundation of Chongqing China (Grant Nos. cstc2020jcyj-msxmX0972 and cstc2019jcyj-msxmX0633), the Cultivation and exploration and innovation project of new academic seedlings of Guizhou Institute of Technology (GZLGXM-04), the National Natural Science Foundation of China (52104204), and the Natural Science Foundation of Shandong Province (ZR2021QE170), which are gratefully acknowledged.

语种：英文

摘要：A decrease in the viscosity of a solution of sodium carboxymethyl cellulose (CMC-Na) is a commonly encountered problem in coalbed methane (CBM) pressure measurement with an apron CMC-Na sealer and capsule CMC-Na sealer. Studies have shown that the factors that can reduce the CMC-Na solution viscosity include the hydrogen ion concentration index (pH), the environmental temperature, the drilling and sealing time, and the high-pressure CBM gas environment. In this study, a homemade instrument for measuring the viscosity of a CMC-Na solution under high pressure was used to determine the change laws of the viscosity under different conditions, and comparative tests were performed to investigate various factors affecting the viscosity. The best solution for stabilizing the viscosity was determined and effectively applied at a coal mine site, where an overall improvement in the viscosity behaviour was observed.