Influencing factors and parameter optimization of staged fracturing in thin and medium coal seam group in Songhe mine in western Guizhou

CHEN Jie; YI Tongsheng; JIN Jun

doi:10.3969/j.issn.1001-1986.2018.05.024

Volume 46 Issue 5

Oct. 2018

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COAL GEOLOGY & EXPLORATION > 2018 > 46(5): 153-158,166. > DOI: 10.3969/j.issn.1001-1986.2018.05.024

CHEN Jie, YI Tongsheng, JIN Jun. Influencing factors and parameter optimization of staged fracturing in thin and medium coal seam group in Songhe mine in western Guizhou[J]. COAL GEOLOGY & EXPLORATION, 2018, 46(5): 153-158,166. DOI: 10.3969/j.issn.1001-1986.2018.05.024

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Influencing factors and parameter optimization of staged fracturing in thin and medium coal seam group in Songhe mine in western Guizhou

CHEN Jie^1,2,
YI Tongsheng^1,3,
JIN Jun^1,3

1. Guizhou Research Center of Shale Gas and CBM Engineering Technology, Guiyang 550009, China;
2. No. 159 Team of Guizhou Coal Geological Bureau, Panxian 561600, China;
3. Bureau of Coal Geology of Guizhou Province, Guiyang 550009, China

Funds:

National Science and Technology Major Project(2016ZX05044-004,2016ZX05034-004)

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Received Date: May 05, 2018
Published Date: October 24, 2018

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Abstract

Abstract

At present, the CBM wells in thin and medium coal seam group show commonly the characteristics of "high production capacity but short period, fast attenuation and large attenuation amplitude in the early stage, difficult recovery in the late stage". Aiming at this phenomenon, Songhe mine in western Guizhou was taken as example to conduct comparative analysis of the engineering effect of demonstrative well group from the characteristics of coal reservoir occurrence, the reformative effect and influencing factors of staged fracturing, optimization of the construction parameters and engineering tests were carried out. The analysis showed that the staged fracturing of the combined layers is the main way for CBM development in multi-seam, the reformative effect is influenced by interlayer compatibility and development mode; ball sealer staged fracturing is affected greatly by interlayer span, effective perforation thickness, construction parameters and cementing quality. Based on the analysis of influencing factors, measures for optimization of construction parameters were proposed, that is:construction displacement of 6-8 m³/min, prepad liquid proportion of 40%-50%, single hole flow of 0.2 to 0.3 m³/min, sand plug of front segment, the optimization scheme has been proved to have good trial effect by later engineering, it has good reference significance for parameter optimization of staged fracturing for CBM development in similar geological condition of thin and medium coal seam group.
- thin and mediumcoal seams group,
- staged fracturing,
- influencing factor,
- parameter optimization,
- coalbed methane

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[1]	秦勇,高弟. 贵州省煤层气资源潜力预测与评价[M]. 徐州:中国矿业大学出版社,2012.
[2]	杨兆彪,秦勇,高弟,等. 煤层群条件下的煤层气成藏特征[J]. 煤田地质与勘探,2011,39(5):22-26. YANG Zhaobiao,QIN Yong,GAO Di,et al. Coalbed methane (CBM) reservoir-forming character under conditions of coal seam groups[J]. Coal Geology & Exploration,2011,39(5):22-26.
[3]	沈玉林,秦勇,郭英海,等. "多层叠置独立含煤层气系统"形成的沉积控制因素[J]. 地球科学——中国地质大学学报, 2012,37(3):573-579. SHEN Yulin,QIN Yong,GUO Yinghai,et al. Sedimentary controlling factor of unattached multiple superimposed coalbed-methane system formation[J]. Earth Science-Journal of China University of Geosciences,2012,37(3):573-579.
[4]	易同生,周效志,金军. 黔西松河井田龙潭煤系煤层气-致密气成藏特征及共探共采技术[J]. 煤炭学报,2016,41(1):212-220. YI Tongsheng,ZHOU Xiaozhi, JIN Jun.Reservoir forming characteristics and co-exploration and concurrent production technology of Longtan coal measure coalbed methane & tight gas in Songhe field,western Guizhou[J].Journal of China Coal Society,2016,41(1):212-220.
[5]	陈基瑜,李俊乾,李臣臣,等. 黔西北可乐向斜中段煤层气与致密砂岩气共探潜力评价[J]. 煤田地质与勘探,2018,46(2):28-34. CHEN Jiyu,LI Junqian,LI Chenchen,et al. Co-exploration potential for coalbed methane and tight sandstone gas in the middle section of the Kele syncline, Northwest Guizhou[J]. Coal Geology & Exploration,2018,46(2):28-34.
[6]	倪小明,苏现波,李玉魁. 多煤层合层水力压裂关键技术研究[J]. 中国矿业大学学报,2010,39(5):728-732. NI Xiaoming,SU Xianbo,LI Yukui. Study of the key technologies of the hydraulic fracturing used in multi-layer coal seam[J]. Journal of China University of Mining & Technology, 2010,39(5):728-732.
[7]	李特社,胡刚,王少雷,等. 黔西北多层薄煤储层暂堵转向压裂技术应用[J]. 煤田地质与勘探,2018,46(2):15-21. LI Teshe,HU Gang,WANG Shaolei,et al. Application of temporary plugging and diverting fracturing technology for multiple and thin coal reservoir in northwestern Guizhou[J]. Coal Geology & Exploration,2018,46(2):15-21.
[8]	王建军. 多分层煤层压裂起裂压力及起裂位置研究[J]. 煤炭科学技术,2015,43(5):81-86. WANG Jianjun. Analysis on fracturing and initiation pressure and initiation location in multi slicing seam[J]. Coal Science and Technology,2015,43(5):81-86.
[9]	李国彪,李国富. 煤层气井单层与合层排采异同点及主控因素[J]. 煤炭学报,2012,37(8):1354-1358. LI Guobiao,LI Guofu. Study on the differences and main controlling factors of the coalbed methane wells between single layer and multi-layer drainage[J]. Journal of China Coal Society, 2012,37(8):1354-1358.
[10]	熊燕莉,冯曦,杨雅和,等. 多层合采气井动态特征及开发效果分析[J]. 天然气勘探与开发,2005(1):21-24. XIONG Yanli,FENG Xi,YANG Yahe,et al. Analysis on performance features and exploitation results of gas wells with multiple-zone production[J]. Natural Gas Exploration and Development,2005(1):21-24.
[11]	汪万红,郑玉柱. 煤层气分压合排技术适应条件分析:以陕西吴堡矿区为例[J]. 煤田地质与勘探,2014,42(4):36-38. WANG Wanghong,ZHENG Yuzhu. Analysis of adaptation conditions for CBM separate layer fracturing and multi-layer drainage technologies:A case study of Wubu mining area[J]. Coal Geology & Exploration,2014,42(4):36-38.
[12]	王理国,唐兆青,李玉魁,等. 煤层气井层内转向压裂技术研究与应用[J]. 煤田地质与勘探,2018,46(2):8-14. WANG Liguo,TANG Zhaoqing,LI Yukui,et al. Research and application of deflection fracturing technology in coalbed methane well[J]. Coal Geology & Exploration,2008,46(2):8-14.
[13]	马平华,霍梦颖,何俊,等. 煤层气井压裂影响因素分析与技术优化——以鄂尔多斯盆地东南缘韩城矿区为例[J]. 天然气地球科学,2017,28(2):296-304. MA Pinghua,HUO Mengying,HE Jun,et al. Influencing factors and technology optimization of coalbed methane well fracturing:Taking Hancheng mining area as an example[J]. Natural Gas Geoscience,2017,28(2):296-304.
[14]	谢楠,姚艳斌,杨延辉,等. 郑庄区块煤层气评价井压裂效果影响因素分析[J]. 煤炭科学技术,2016,44(增刊1):180-185. XIE Nan,YAO Yanbin,YANG Yanhui,et al. Fracturing effect factors analysis of CBM appraisal wells in Zhengzhuang Block[J]. Coal Science and Technology,2016,44(S1):180-185.
[15]	倪小明,贾炳,王延斌. 合层水力压裂煤层投球数的确定[J]. 天然气工业,2012,32(7):33-37. NI Xiaoming,JIA Bing,WANG Yanbin. Determination of ball sealers used for the multi-layer hydraulic fracturing in coal seams[J]. Natural Gas Industry,2012,32(7):33-37.

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