第39参第3期 2017年5月
石油钻采工艺
OIL DRILLING & PRODUCTION TECHNOLOGY
文章编号：10007393(2017)03036208
DOI:10.13639/j.odpt.2017.03.020
Vol. 39 No. 3 May 2017
郑3X煤层气井绒囊流体重复压裂控水增产试验
聂帅帅，郑力会1.2陈必武”侯涛彭睿】付毓伟
1.中国石油大学（北京)石油工程学院；2.河北省化工学会“化学蚌堵材料综合利用研究与应用"重点实验宝：
3.中国石油华北油田分公司媒层气勘探开发事业部
引用格式：最师帅，郑力会，陈必武，候涛，彭睿，付航伟.郑3X煤层气并绒案流体重复压裂控水增产试验J］.石油钻采工艺,2017,39(3):362-369
摘要：郑3X煤层气井水力裂缝沟通含水砂岩层，导致了气井高产水、低产气。为此，利用绒流体封堵含水砂岩层和原缝，重复压裂压开新缝，降低气并产水量，提高产气量。宝内测试结果表明，震流体暂堵煤岩裂缝承压能力21MPa，降低砂水相渗透率52.67%，伤害煤岩基质渗透率恢复值87%，满足转向压裂和堵水的性能要求。现场配制密度0.85~0.95g/cm、表观黏度40~60mPa's的城震流体80m。当索流体成功对堵含水砂岩层和原缝后，再利用活性水造行压累。排采结果承明，重复压裂后排水期和产气期的产水量分别降低79%和68%，而产气量提高44%，表明域囊流体在郑3X井控水增产试验成功。战掌流体具有良好的时堵能力和控水性能，能够实现水侵煤层气并播水压裂一体化作业，提高煤层气开发效累
关键词：煤层气；水力压裂；重复压裂；堵水；储层伤害；绒囊流体
中图分类号：TE377
文献标识码：B
An experiment on refracturing with fuzzy-ball fluid for water control and
stimulation of CBMWellZheng 3X
NIE Shuaishuai', ZHENG Lihui'2, CHEN Biwu', HOU Tao', PENG Rui', FU Yuwei
1. College of Peroleum Engineering, China University of Petroleum (Bejing), Bejing 102249, China
2. Key Labortory of Shdy and Application on Compshenshve Utilization of Chemica/ Plegging Material, Hebei Chemical Society, Beijing 102299, China2
3. CBM Exploration and Development Division, PetroChina Huabei Oilfield Company, Changzhi 046000, Shanxi, China
Citation: NIE Shuaishuai, ZHENG Lihui, CHEN Biwu, HOU Tao, PENG Rui, FU Yuwei. An experiment on refracturing with( ooa oapd [ a a o oes e [oo e o en 362-369.
Abstract: In CBM Well Zheng 3X, hydraulic fractures connect water bearing sandstone formations, leading to high water produc-tion and low gas production. In this paper, fuzzy-ball fluid was used to plug water bearing sandstone formations and primary fractures, and then refracturing was carried out to create new fractures so as to decrease the water production rate of gas well while increasing its sne oessasard eii o oeadde a ae os s eie p e ae opord se in coal rocks is 21 MPa, water permeability of sandstones decreases by 52.67% and matrix permeability recovery rate of damaged coal rocks is 87%. It is demonstrated that fuzzy-ball fluid can satisfy the performance requirements for diverting fracturing and water plugging. 80 m’ fuzzy-ballfluid was prepared on site, and its density and apparent viscosity were 0.85-0.95 g/cm and 40-60 mPa-s, re-spectively. After water bearing formations and primary fractures are plugged successfully by fuzzy-ball fluid, fracturing is performed by using active water. It is shown from production results that the water production rate after the refracturing drops by 79% in water drain-
基金项目：国家科技重大专项“煤层气钻完并及增产改造技术示范工程"（编号：2016ZX05064002)。
第一作者：最师帅（1992-)，中国石沟大学（北京)油气并工程专业项士研究生，主要从事动态储层伤害防治技术的研究工作。通讯地址：
(102249)北京市昌平区府学路18号中国石油大学（北京）。E-mail：lihuilab@lihuilab.com
通讯作者：郑力会（1968-)），中国石油大学（北京）博士生导师，主要从事储层伤害类生命周期学的研究工作。通讯地址：(102249)北京市
昌平区府学路18号中国石沟大学（北京）。电话：010-89732207。E-mail：zhenglihui@cup.edu.cn。
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