The invention relates to a coal gas mining equipment, CBM well washing equipment, including tubing, hollow rod flushing and drainage pump, the hollow rod at the lower part of tubing, hollow rod and tubing is connected with the flushing drainage pump, drainage pump tubing joints including washing, tubing connector is connected with the upper end of the tubing the lower part of the outer wall, the pipe joint connecting outer cylinder, outer cylinder is connected with the lower end of the tail pipe joint connection joint, inner wall of the lower part of the pump barrel and plunger pump installation cylinder, the plunger is connected with the upper end of the hollow rod, the lower part of the plunger is arranged inside the traveling valve, fixed for setting the pump cylinder middle, the lower part of the pump barrel outer wall is sheathed with a sliding sleeve, a sliding sleeve connected to the lower part of spring, spring is connected with the lower end of the tail joint. The invention can carry out the tubing washing operation at any time during the production process, and the utility model can not only destroy the coal seam, but also wash out the coal powder in the pump barrel and the liquid producing pipe to the ground, thereby reducing the period of pump inspection.
【技术实现步骤摘要】
可洗井煤层气排采设备
本专利技术涉及一种煤层气开采设备,具体是一种用于煤层气开发的可洗井煤层气排采设备。
技术介绍
在利用现有煤层气排采设备开发煤层气过程中,随着煤层水的减少,煤层采出水越来越少,采出水煤粉含量越来越高,另外,煤层气生产井压裂后,也会出现煤粉含量高,油管内的细煤粒(砂)在自重的作用下会不断沉积下来,造成泵阀堵塞或卡泵等现象;目前只有通过频繁修井作业检泵的措施来解决,减少了正常排水采气的时间,增加了修井成本。
技术实现思路
本专利技术的目的在于提供可随时进行油管洗井作业,防止煤粉堵塞泵阀或卡泵现象的发生,减少检泵周期的可洗井煤层气排采设备。本专利技术的技术方案是:可洗井煤层气排采设备,包括油管、空心杆和洗井排采泵,空心杆下部在油管内,空心杆和油管下端连接洗井排采泵,洗井排采泵包括油管接头,油管接头上端连接油管,油管接头下部内壁设有凸台,凸台开有连通孔,油管接头下部外壁连接外筒,外筒下端连接尾部接头,油管接头下部内壁连接泵筒,泵筒内上部安装柱塞,柱塞上端连接空心杆,柱塞为中空结构,柱塞下部内部设置游动凡尔,泵筒内中部设置固定凡尔,泵筒在固定凡尔处开有洗井孔,泵筒下部外壁套有滑套,滑套中部开有压力平衡孔,滑套外壁设有环形密封凸台,滑套下部连接弹簧,弹簧下端连接尾部接头。所述柱塞上端一体连接空心拉杆,空心拉杆上端设置空心杆接头,空心杆接头连接空心杆。所述柱塞内部设置上游动凡尔和下游动凡尔,泵筒内设置上固定凡尔和下固定凡尔。所述洗井孔位于下固定凡尔处。所述外筒下部内壁设置滑套座。所述空心杆上部连通出液管线,注水撬通过洗井管线连通空心杆与油管的环形空间。本 ...
【技术保护点】
可洗井煤层气排采设备,其特征在于,包括油管、空心杆和洗井排采泵,空心杆下部在油管内,空心杆和油管下端连接洗井排采泵,洗井排采泵包括油管接头,油管接头上端连接油管,油管接头下部内壁设有凸台,凸台开有连通孔,油管接头下部外壁连接外筒,外筒下端连接尾部接头,油管接头下部内壁连接泵筒,泵筒内上部安装柱塞,柱塞上端连接空心杆,柱塞为中空结构,柱塞下部内部设置游动凡尔,泵筒内中部设置固定凡尔,泵筒在固定凡尔处开有洗井孔,泵筒下部外壁套有滑套,滑套中部开有压力平衡孔,滑套外壁设有环形密封凸台,滑套下部连接弹簧,弹簧下端连接尾部接头。
【技术特征摘要】
1.可洗井煤层气排采设备,其特征在于,包括油管、空心杆和洗井排采泵,空心杆下部在油管内,空心杆和油管下端连接洗井排采泵,洗井排采泵包括油管接头,油管接头上端连接油管,油管接头下部内壁设有凸台,凸台开有连通孔,油管接头下部外壁连接外筒,外筒下端连接尾部接头,油管接头下部内壁连接泵筒,泵筒内上部安装柱塞,柱塞上端连接空心杆,柱塞为中空结构,柱塞下部内部设置游动凡尔,泵筒内中部设置固定凡尔,泵筒在固定凡尔处开有洗井孔,泵筒下部外壁套有滑套,滑套中部开有压力平衡孔,滑套外壁设有环形密封凸台,滑套下部连接弹簧,弹簧下端连接尾部接头。2.根据权利要求1...
【专利技术属性】
技术研发人员:于斌,李书江,
申请(专利权)人:淄博东华石油技术有限公司,
类型:发明
国别省市:山东,37
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