第
44
卷第
5
期
煤 炭
科 学 技 术
Vol.44 No.5
2016
年
5
月
Coal Science and Technology
May 2016
煤层气开发精确对接井钻进技术装备研发与应用
石智
军
1
,
张 群
1
,
王保
玉
2
,
刘建
林
1
,
田宏
亮
1
,
赵永
哲
1
( 1.
中国煤炭科工集团西
安研究院有限公司
,
陕西 西安
710077; 2.
山西晋城无烟煤矿业集团有限责任公司
,
山西 晋城
048006)
摘 要
:
针对煤矿区煤层气地面开发面临的井型及成井方法单一
、
配套国产化钻井装备不足等难题
,
提出了一种基于精确对接井钻进技术的煤层气开发新模式
,
研制了配套全液压车载钻机
,
集
成了成套
钻进装备系统
;
研究发展了精确对接井钻进工艺
,
总结形成了系列完井技术
,
在晋城矿区建成了我国
煤矿区第一个高产的远端精确对接井
。
精确对接井钻进技术装备已推广应用于多个煤层气勘探开发
工程
,
相继建成
10
个不同类型的精确对接井组
,
施工水平连通井
16
口
,
最大对接距离
1 065 m,
最大
位垂比
3. 7,
最高日产气量
3. 28
万
m
3
(
晋城
矿区
15
号煤层
) ,
为实现煤矿区煤层气地面高效开发提供
了技术装备支持
。
关
键词
:
全液压车载钻机
;
精确对接井
;
钻进工艺
;
完井技术
;
煤矿区
;
煤层气开发
中图分类号
: TD41
文献标志码
: A
文章编号
: 0253
-
2336( 2016) 05
-
0006
-
05
Research & development and application on drilling te chnology and equipment of
accurate butted well for coalbed methane development
Shi Zhijun
1
,Zhang Qun
1
,Wang Baoyu
2
,Liu Jianlin
1
,Tian Hongliang
1
,Zhao Yongzhe
1
( 1. Xi’an Research Institute Company Limited,China Coal Technology & Engineering G roup,Xi’an 710077,China;
2. Shanxi Jincheng Anthracite Mining Group C o.,Ltd.,Jincheng 048006,China)
Abstract: According to the single well type and completion technology,insufficient matched domestic drilling equipment and other prob-
lems faced to the coalbed methane surface ground development in the coal mine area,a new accurate butted coalbed methane development
mode with a butted point and two side branches was studied and practices,a matched full hydraulic truck mounted drilling rig was re-
searched and developed and the completed set drilling equipment system was integrated.The accurate butted drilling technique was studied
and developed,a series well completion technology was summarized and formed and the first high production remote accurate butted well in
China coal mine area was constructed in Jincheng M ining Area.The accurate butted drilling technology and equipment was promoted and
applied to several coalbed methane exploration and development projects.One after another,10 different type accurate well butted groups
were established,16 horizontal butted wells were constructed,a max butted distance was 1 065 m,the max vertical ratio was 3.7 and the
max daily gas production was 32 800 m
3
( No.15 seam in Jincheng Mining Area) .The technology and equipment could provide a technical
and equipment support to realize a coalbed methane high efficient development on the surface.
Key words: fully hydraulic truck
-
mounted drilling rig; accurate butted well; drilling technique; well completion technology; coal mine
area; coalbed methane development
收稿
日期
: 2015
-
12
-
11;
责任编辑
:
赵 瑞
DOI: 10.13199 /j.cnki.cst.2016.05.002
基金项目
:
国家科技重大专项资助项目
( 2008ZX05041
-
001) 。
作者简介
:
石智军
( 1955—) ,
男
,
陕西富平人
,
研究员
,
博士生导师
。Tel: 13909254439,E
-
mail: shizhijun@ cctegxian. com
引用格式
:
石智军
,
张 群
,
王保玉
,
等
.
煤层气开发精确对接井钻进技术装备研发与应用
[J].
煤炭科学技术
,2016,44( 5) : 6
-
10,58
.
Shi Zhijun,Zhang Qun ,Wang Baoyu,et al.Research & development and application on drilling technology and equipment of accurate butted well
for coalbed methane development[J].Coal Science and Technology,2016,44( 5) : 6
-
10,58.
0
引 言
煤层
气
(
煤矿瓦斯
)
是我国重要的非常规天然
气资源
,
据最新的全国油气资源评价结果
,
埋深
2 000 m
以浅的煤层气地质资源量为
36. 81
×
10
12
m
3
,
居世
界第
3
位
,
与我国陆地上的天然气资源量
相当
,
其中可采资源量为
10. 87
×
10
12
m
3[1]
。
自
20
世纪
80
年
代开始
,
我国将煤层气
(
煤矿瓦斯
)
作为
6