Second, the auxiliary shaft system, the auxiliary shaft system, the auxiliary well shaft and the bottom hole yard connection (Matoumen), the main drainage pump room (central pump house), the water tank and the cleaning water tank chamber, the main transformer (central substation) and waiting room.
Third, other diverticulum diverticulum has a dispatch room, medical room, wired motor garage and repair room, battery motor garage and charging chamber, fire door chamber, waterproof chamber, underground gunpowder library, fire material library, people Station, etc. The location shall be determined according to the layout of the line and the respective requirements. For example, the charging chamber shall have a separate air duct connected to the total return air duct; the fire door chamber shall be located at the junction of the inlet shaft and each level of the lift platform, and It does not hinder the passage of lift, transportation and personnel when opened.
There are single standard designs for the trolleys, diverting chambers, coal bunkers and loading chambers, cleaning of the bottom chambers and inclined lanes, motor vehicles and repairs, dispatching rooms, and auxiliary shafts and yard junctions. use.
Due to the location of the underground gunpowder warehouse and the ventilation system, the underground gunpowder warehouse should be selected in a location that is dry, well ventilated, convenient to transport, and easy to arrange for returning to the air duct. The necessary safety distance should be obtained from the important tunnel and the diverticulum of the wellbore and the bottom hole yard. . The gunpowder warehouse should have a separate inlet airflow, and its return air duct is connected with the mine's total return air passage to ensure independent ventilation. The ventilation system of each mine is not the same. The capacity of the gunpowder warehouse is not completely dependent on the well type of the mine. It is not indicated on the floor plan of the bottom hole. The design unit can select the standard and waste meter of the gunpowder library according to the actual situation and determine its location.
Tubing is mainly used to provide oil and gas flow passage during production of oil and gas wells. For flowing wells, due to the large inner diameter of the CASING, the casing is directly used for production. Due to the density difference, pressure drop and expansion, the liquid flows up rapidly, causing the liquid to slip, resulting in the ineffective utilization of the downhole elastic energy. Running tubing with smaller OD and ID during production can effectively solve the above problems by allowing fluid to flow in the tubing. Therefore, running tubing is required during production of flowing wells. The downhole operation and production of flowing well and non flowing well can be completed by using various tools for tubing running.
The basic requirements of the tubing used for workover are: to comply with the safety and economic principles, to meet the technical requirements adopted during well completion, and to meet the requirements for corrosion resistance and operation measures after the well is put into production.
According to the manufacturing process, oil pipes can be divided into seamless pipes and electric welded pipes. Seamless pipe is a kind of forged steel pipe without welding seam, which is made of hot working steel. After pressing, stretching, heat treatment and other processes, it reaches the standard size of oil pipe, forming a seamless oil pipe series. Electric welding pipe is a kind of pipe with a longitudinal weld formed by resistance welding or electric induction welding without filler metal. The welding edges are squeezed together by mechanical pressure, and the standard size oil pipes are reached through heat treatment and other processes, forming a series of electric welding pipes.
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