How does the drilling machine work during drilling?
Release time:
2020-06-06
Large-scale well drilling projects cannot be separated from the use of drilling equipment. Its good functions have greatly improved the speed and efficiency of well drilling, especially in remote areas. However, many friends do not know much about the operation method of this equipment. Here is a specific explanation for everyone. The working method of drilling is pump suction reverse circulation.
Its operation principle is: under the effect of atmospheric pressure, the circulating liquid flows to the bottom of the well along the annular gap of the well hole from the accumulation tank through the backwater ditch. Because the rotary table at this moment drives the drill pipe and drives the drill bit to rotate for drilling, the negative pressure established by the mud pump sucks the debris mud into the inner cavity of the drill pipe, then rises to the tap and discharges into the accumulation tank through the mud pump. The accumulated circulating liquid continues to flow into the hole, A reverse cycle drilling operation is formed.
Mud or water enters from the drill pipe and flows out from the wellhead. For positive circulation drilling. Mud or water is sucked from the drill pipe and flows in from the wellhead. For reverse circulation drilling. Positive and negative circulation refers to the circulation method of drilling fluid (mud or water) in drilling. When drilling, the drilling bit will attack slag, slag and so on. After positive and negative circulation, the slag can be brought to the ground by the mud, and then the mud will return to the borehole after being accumulated in the accumulation pool. This constant cycle, eventually into the hole. The reverse circulation can bring out the slag with larger diameter.
Three aspects of drilling to carry out, such as abnormal situation, should be timely diagnosis and adoption of improvement measures. Maintenance of the filter element: the filter element has the effect of filtering impurities in the oil circuit or gas circuit, preventing it from invading the inside of the system and forming a fault; All kinds of filter elements should be replaced on time according to the requirements of (operation and maintenance manual); When replacing the filter element.
It should be checked whether there is metal attached to the old filter element. If metal particles are found, it should be diagnosed and improved in time. Use pure filter element conforming to machine rules. Lubricating grease management: The use of lubricating oil (butter) can reduce the wear of the moving surface and prevent noise. Grease storage, can not be mixed with dust, sand, water and other impurities; recommended selection of lithium-based grease, anti-wear function.
Related News
Trailer Hanging Daily How to Maintain
2023-12-09
Characteristics of drilling rig
2022-08-25
Contact Us
E-mail:admin@wanglianjt.cn
North 200 Meters West of the Intersection of Xindong Road and Gaoyang Avenue, Hualong District, Puyang City, Henan Province
SAF Coolest v1.3.1.2 设置面板 NQISD-ZDTD-JAAEE-ZQS
无数据提示
Sorry, the current column is being updated, please look forward to it!
You can view other columns or returnHome Page