Development and Field Test of GW-CP194-80M CBM Dual Pressure Coring Tool

doi:10.3969/j.issn.1006-6535.2020.05.021

Abstract

Abstract: During the CBM coring process, there is a great variation for the gas content and permeability due to pressure release and sampling operation, which will distort the corresponding test data and seriously influence the formulation of CBM development program. the GW-CP194-80M CBM dual-pressure coring tool was developed to obtain the original core sample under overburden pressure and reduce the test error caused from the formation condition variation. Gas-liquid pressure compensation and a compound rubber pressure-holding cylinder were used to hold the original formation pressure and proper confining pressure to prevent the creation of micro fractures. The sample can be directly used to permeability, critical desorption pressure and other subsequent tests through disassembly under pressure eon the ground. Laboratory field tests indicates that the GW-CP194-80M CBM dual-pressure coring tool is characterized by reliable performance, technical feasibility, effective maintenance of sample structure and favorable dual-pressure performance. This coring tool could provide certain technical reference for the reasonable formulation of CBM development program and accurately determine reserves.

Key words: coring tool, CBM, formation pressure, confining pressure, dual-pressure coring

CLC Number:

TE921

Zhu Qingzhong, Su Xuefeng, Yang Liwen, Su Yang, Luo Jun. Development and Field Test of GW-CP194-80M CBM Dual Pressure Coring Tool[J]. Special Oil & Gas Reservoirs, 2020, 27(5): 139-144.

References

[1] 朱庆忠,杨延辉,陈龙伟,等.我国高煤阶煤层气开发中存在的问题及解决对策[J].中国煤层气,2017,14(1):3-6.
ZHU Qingzhong,YANG Yanhui,CHEN Longwei,et al.Problems and countermeasures in the development of high rank CBM in China[J].China Coalbed Methane,2017,14(1):3-6.
[2] 朱庆忠,杨延辉,左银卿,等.中国煤层气开发存在的问题及破解思路[J].天然气工业,2018,38(4):96-100.
ZHU Qingzhong,YANG Yanhui,ZUO Yinqing,et al.CBM development in China: challenges and solutions[J].Natural Gas Industry,2018,38(4):96-100.
[3] 苏雪峰,唐跃刚,王磊,等.煤岩粒度对煤层气损失量估算误差的影响实验[J].吉林大学学报(地球科学版),2015,45(1):1-2.
SU Xuefeng,TANG Yuegang,WANG Lei,et al.Effect of coal and rock size on estimation error of coalbed methane loss[J].Journal of Jilin University(Earth Science Edition),2015,45(1):1-2.
[4] 王丹,赵峰华,姚晓莉,等.临汾区块煤层气产能地质影响因素分析[J].特种油气藏,2014,23(2):1-5.
WANG Dan,ZHAO Fenghua,YAO Xiaoli,et al.Analysis of geological factors on CBM productivity in Linfen Block[J].Special Oil & Gas Reservoirs,2014,23(2):1-5.
[5] 朱庆忠,张小东,杨延辉,等.影响沁南—中南煤层气井解吸压力的地质因素及其作用机制[J].中国石油大学学报(自然科学版),2018,42(2):41-49.
ZHU Qingzhong,ZHANG Xiaodong,YANG Yanhui,et al.Geological factors affecting desorption pressure of CBM wellsin the southern and central-southern Qinshui Basin and their influencing mechanism[J].Journal of China University of Petroleum(Edition of Nature Science),2018,42(2):41-49.
[6] 朱庆忠,杨延辉,王玉婷,等.高阶煤层气高效开发工程技术优选模式及其应用[J].天然气工业,2017,37(10):27-34.
ZHU Qingzhong,YANG Yanhui,WANG Yuting,et al.Optimal geological-engineering models for highly efficient CBM gas development and their application[J].Natural Gas Industry,2017,37(10):27-34.
[7] 陈彦君,苏雪峰,王钧剑,等.基于X射线微米CT扫描技术的煤岩孔裂隙多尺度精细表征——以沁水盆地南部马必东区块为例[J].油气地质与采收率,2019,26(4):1-7.
CHEN Yanjun,SU Xuefeng,WANG Junjian, et al.Multi-scale fine characterization of coal pore-fracture structure based on X-ray micro-CT scanning:a case study of Mabidong Block,southern Qinsui Basin[J].Petroleum Geology and Recovery Efficiency,2019,26(4):1-7.
[8] 胡海洋,倪小明,朱阳稳,等.煤层气井渗透率时空变化规律研究及应用[J].特种油气藏,2016,23(5):106-109,156.
HU Haiyang,NI Xiaoming,ZHU Yangwen,et al.Spatial-temporal permeability and its application in CBM well[J].Special Oil & Gas Reservoirs,2016,23(5):106-109,156.
[9] 赵贤正,朱庆忠,孙粉锦,等.沁水盆地高阶煤层气勘探开发实践与思考[J].煤炭学报,2015,40(9):2131-2136.
ZHAO Xianzheng,ZHU Qingzhong,SUN Fenjin,et al.Practice of coalbed methane exploration and development in Qinshui Basin[J].Journal of China Coal Society,2015,40(9):2131-2136.
[10] 高彩霞,苏雪峰,刘俊英,等.沁水盆地高阶煤应力敏感性渗透率变化特征研究[J].中国煤层气,2017,14(5):11-13,41.
GAO Caixia,SU Xuefeng,LIU Junying,et al.Study on characteristics of stress sensitivity and permeability variations of high-rank coal in Qinshui Basin[J].China Coalbed Methane,2017,14(5):11-13,41.
[11] 朱庆忠,左银卿,杨延辉.如何破解我国煤层气开发的技术难题——以沁水盆地南部煤层气藏为例[J].天然气工业,2015,35(2):106-109.
ZHU Qingzhong,ZUO Yinqing,YANG Yanhui,et al.How to solve the technical problems in the CBM development:a case study of a CMB gas reservoir in the southern Qinshui Basin[J].Natural Gas Industry,2015,35(2):106-109.
[12] 胡畔,郑凯中,何超.保压储气取心工具设计研究[J].钻采工艺,2018,41(2):89-90.
HU Pan,ZHENG Kaizhong,HE Chao,et al.Development of formation pressure-gas maintained coring tools[J].Drilling & Production technology,2018,41(2):89-90.
[13] 苏雪峰,刘岩,崔周旗,等.降压速率对沁水盆地南部高阶煤产气能力的影响[J].石油勘探与开发,2019,46(3):613-620.
SU Xuefeng,LIU Yan,CUI Zhouqi,et al.Influence of depressurization rate on gas production capacity of high-rank coal in the south of Qinshui Basin,China[J].Petroleum Exploration and Development,2019,46(3):613-620.
[14] 梁红艺,谢小国,罗兵,等.煤层含气量评价方法研究与应用[J].特种油气藏,2016,23(3):44-47.
LIANG Hongyi,XIE Xiaoguo,LUO Bing,et al.Coalbed methane content evaluation and application[J].Special Oil & Gas Reservoirs,2016,23(3):44-47.
[15] 刘岩,苏雪峰,张遂安.煤粉对支撑裂缝导流能力的影响特征及其防控[J].煤炭学报,2017,42(3):687-693.
LIU Yan,SU Xuefeng,ZHANG Suian.Influencing characteristics and control of coal powder to proppant fracture conductivity[J].Journal of China Coal Society,2017,42(3):687-693.
[16] 景兴鹏.煤层气含量密闭取心测定装置及测试技术[J].西安科技大学学报,2019,39(4):603-609.
JING Xingpeng.Testing device of methane content sealed coring and measuring technology[J].Journal of Xi'an University of Science and Technology,2019,39(4):603-609.
[17] 张丁亮.煤矿井下煤层密闭取心装置[J].中国煤炭地质,2015,27(7):80-81.
ZHANG Dingliang.Study on coal seam airtight coring facility in coalmines[J].Coal Geology of China,2015,27(7):80-81.
[18] 贺涛.天然气水合物保温保压绳索取心钻具设计[D].北京:中国地质大学(北京),2011.
HE Tao.Design of wire line pressure and temperature-preservation core tool for natural gas hydrates[D].Beijing:China University of Geosciences(Beijing),2011.
[19] 白玉湖,李清平.天然气水合物取样技术及装置进展[J].石油钻探技术,2010,38(6):116-123.
BAI Yuhu,LI Qingping.Progress on natural gas hydrate sampling techniques and tools[J].Petroleum Drilling Techniques,2010,38(6):116-123.
[20] 马力宁,李江涛,华锐湘,等.保压取心储层流体饱和度分析方法——以柴达木盆地台南气田第四系生物成因气藏为例[J].天然气工业,2016,36(1):76-80.
MA Lining,LI Jiangtao,HUA Ruixiang,et al.An analysis method for reservoir fluid saturation by pressure coring:a case study from quaternaty biogenetic gas reservoirs in the Tainan Gas Field,Qaidam Basin[J].Natural Gas Industry,2016,36(1):76-80.
[21] 袭杰,王晓舟,杨永祥,等.保压取心技术在吐哈油田陵检14-241井的应用[J].石油钻探技术,2003,31(3):19-21.
XI Jie,WANG Xiaozhou,YANG Yongxiang,et al.Application of coring technology with keepingpressure in Lingjian14-241 well in Tuha Oilfield[J].Petroleum Drilling Techniques,2003,31(3):19-21.
[22] 张洪君,刘春来,王晓舟,等.深层保压密闭取心技术在徐深12井的应用[J].石油钻探技术,2007,29(4):110-114.
ZHANG Hongjun,LIU Chunlai,WANG Xiaozhou,et al.Application of submerged pressure maintaining sealed coring techniques to well Xushen-12[J].Petroleum Drilling Techniques,2007,29(4):110-114.
[23] 杨立文,孙文涛,罗军,等.GWY194-70BB型保温保压取心工具的研制和应用[J].石油钻采工艺,2014,36(5):58-61.
YANG Liwen,SUN Wentao,LUO Jun,et al.Study and application of GWY194-70BB heat and pressure preservation coring tool[J].Oil Drilling & Production Technology,2014,36(5):58-61.
[24] 罗军.保压密闭取心技术在延页27井的应用[J].钻采工艺,2015,38(5):113-114.
LUO Jun.Application of pressure retaining sealed coring technique in Yanye27 well[J].Drilling & Production Technology,2015,38(5):113-114.
[25] 罗军.保温保压取心工具球阀工作力学的有限元分析[J].石油机械,2014,42(7):16-19.
LUO Jun.Finite element analysis on the mechanics of ball valve of pressure and temperature-preservation coring tool[J].China Petroleum Machinery,2014,42(7):16-19.
[26] 陈哲,王中鹏,李尚儒.萍乐坳陷曲页1井乐平组页岩气和煤层气地质条件分析[J].油气地质与采收率,2019,26(4):50-55.
CHEN Zhe,WANG Zhongpeng,LI Shangru.Geological condition analysis of shale gas and coalbed methane of Leping Formation in Well Quye1 of Pingle Depression[J].Petroleum Geology and Recovery Efficiency,2019,26(4):50-55.
[27] 王镜惠,王美冬,田锋,等.高煤阶煤层气储层产气能力定量评价[J].油气地质与采收率,2019,26(4):105-110.
WANG Jinghui,WANG Meidong,TIAN Feng,et al.Quantitative evaluation of production capacity of high rank coalbed methane reservoir[J].Petroleum Geology and Recovery Efficiency,2019,26(4):105-110.
[28] 原俊红,付玉通,宋昱. 深部煤层气储层测井解释技术及应用[J].油气地质与采收率,2018,25(5):24-31.
YUAN Junhong,FU Yutong,SONG Yu. Logging interpretation technology and its application to deep coalbed methane reservoir[J].Petroleum Geology and Recovery Efficiency,2018,25(5):24-31.
[29] 杨显成,蒋有录,杨昕睿,等. 煤层气含量的主控因素——以卡拉哈里盆地XX区块为例[J].油气地质与采收率,2018,25(1):56-60.
YANG Xiancheng,JIANG Youlu,YANG Xinrui,et al. Study on main controlling factors of the coalbed methane content:a case study of Block XX in Kgalahari Basin[J].Petroleum Geology and Recovery Efficiency,2018,25(1):56-60.
[30] 杨勇,崔树清,王风锐,等.煤层气多分支水平井双管双循环井眼清洁技术[J].天然气工业,2017,37(1):112-118.
YANG Yong, CUI Shuqing, WANG Fengrui, et al.Double casing & binary cirulation hole cleaning technology for CBM multi-branch horizontal wells[J].Natural Gas Industry, 2017, 37(1):112-118.