第38卷第4期 2016年7月
石油钻采工艺
OILDRILLING &PRODUCTION TECHNOLOGY
文章编号：1000-7393(2016)040487-07
DOI: 10.13639/j.odpt.2016.04.016
Vol. 38 No. 4 July 2016
工程参数对L区煤层气直井产量影响的定量研究
任宜伟楼宣庆”段宝江王文升聂帅帅”
1.中海油能源发展股份有限公司工程技术分公司：2.中国石油大学（北京)石油工程季院
引用格式：任宜伟，楼宣庆，段宝江，王文升，聂师帅，工程参数对L区煤层气直井产量影响的定量研完[】，石油钻采工艺,2016,384)：487-493.
摘要：针对煤层气产量影响固素以地质图素定性分析为主的现状，提出从工程角度研究工程参数对产量影响的思路，即从
建立产量与工程参数间的数学模型，评价各工程参数对煤层气井产量的影响。通过分析L区49口并实际产量发现，各工程参数对产量影响程度为：降液建度■压裂液量■射孔厚度■累产水量■关井时间■浸泡时间■压裂排量■见气时间■完钻井深 ■见气套压。结合开发效果分析认为，排采速度过快和压裂裂缝沟通灰岩含水层是乎致L区产量不理想的主要原因，与实际相符。结表明，从工程角度分新不同工程参数对煤层气并产量的影响程度是可行的，为煤层气产量主控因素分析提供了一种新的研究思路。
关键词：煤层气；直井；产量；钻完井参数；压裂参数；排采参数；因索分析
中图分类号：TE37
文献标识码：A
Quantitative analysis on the effect of engineering paramters
onproductionrateof CBMvertical well in BlockL REN Yiwei', LOU Xuanqing, DUAN Baojiang , WANG Wensheng , NIE Shuaishuai
1. CNOOC Ener Tech-Drlling & Prodiction Co., Tianjin 300450, China;
2. College of Petroleam Engineering, Chinr University of Petroleam (Bejing), Beijing 102249, Chind
Citation: REN Yiwei, LOU Xuanqing, DUAN Baojiang, WANG Wensheng, NIE Shuaishuai. Quantitative analysis on the effect of engineering paramters on production rate of CBM vertical well in Block L [ J J . Oil Drilling & Production Technology, 2016, 38(4): 487-493.
Abstract: At present, qualitative analysis on geologic factors is the dominant way to study the influential factors of coalbed meth ane (CBM) production rate. In this paper, it was proposed to analyze the effect of engincering parameters on production rate from the viewpoint of engineering. Firstly, the parameters related to production rate are screened out by means of grey correlative analysis based on three engineering sectors (i.e. well drilling and completion, fracturing and production). Secondly, the collinear parameters are de-leted by means of correlation analysis. And finally, the mathematical model is established for the relation between production rate and engincering parameters, so as to evaluate the effect of engincering parameters on CBM well production rate. The real production rate of 49 wells in Block L was investigated. According to the effect on production rate, the engineering parameters rank in a descending order of liquid reduction rate, fracturing fluid volume, perforation thickness, cumulative water production, shut-in time, soak time, fracturing displacement, gas breakthrough time, total depth, and gas breakthrough casing pressure. The development results were analyzed, and it is shown that the unsatisfying production rate in Block L is mainly caused by high production rate and limestone aquifers connected by induced fractures, which is in accordance with the real situations. As concluded, it is feasible to analyze the effect of engineering
基金项目：国家科技重大专项““三气合来钻完并技术与储层保护"（端号：2016ZX05066002-001)。
第一作者：任宜伟(1980-),2005年毕业于中国石油大季（毕东)油气田开发工程专业，现从事油气田开发及管理工作，工程师。通讯地址：
(300450)天津市滨海新区激海石油路688号。电语：022-66907041。E-mail；renyw@cnooc.com.cn