CN-224220810-U - Secondary purification system

Abstract

The utility model relates to the technical field of petroleum and petrochemical drilling, in particular to a secondary purification system which comprises a degassing tank, wherein a stirring mechanism is arranged in the degassing tank, the stirring mechanism comprises a motor, the output end of the motor is fixedly connected with a rotating shaft, a bucket-shaped stirring blade is sleeved on the outer wall of the rotating shaft, a sludge discharge port is arranged at the bottom of the degassing tank, a baffle is arranged in the sludge discharge port, the outer wall of the baffle is fixedly connected with a rotary table, the outer wall of the degassing tank is fixedly connected with a supporting plate, the top of the supporting plate is fixedly connected with a vacuum pump, the top of the vacuum pump is fixedly connected with a first air duct, the side wall of the vacuum pump is fixedly connected with a second air duct, the right side of the degassing tank is provided with a secondary purification tank, the stirring mechanism is arranged in the secondary purification tank, the outer wall of the secondary purification tank is fixedly connected with a liquid outlet, and the top of the liquid outlet is fixedly connected with a liquid outlet valve. The utility model can reduce environmental pollution, prolong the service life of equipment, further improve the overall degassing capability, realize more direct visual operation, reduce a large amount of labor force and have high safety and reliability.

Inventors

• LI JIANJUN
• ZHANG SHUANGQIANG
• YANG QINGTING
• DUAN JINLONG
• LIANG WENYUN
• XU HUA
• TAN YONG
• CAO HANYUAN
• WANG ZILONG
• WANG XIN

Assignees

• 中石化石油工程技术服务股份有限公司
• 中石化西南石油工程有限公司
• 中石化西南石油工程有限公司钻井一分公司

Dates

Publication Date

20260512

Application Date

20250529

Claims (6)

1. 1. The secondary purification system comprises a degassing tank (1), and is characterized in that the top of the degassing tank (1) is connected with a degassing top cover (2) through a bolt, a stirring mechanism (3) is arranged in the degassing tank (1), the stirring mechanism (3) comprises a motor (301), the bottom of the motor (301) is fixedly connected with the top of the degassing top cover (2), the output end of the motor (301) is fixedly connected with a rotating shaft (302), the outer wall of the rotating shaft (302) is sleeved with bucket-shaped stirring blades (303), the number of the bucket-shaped stirring blades (303) is two, a mud discharge opening (4) is formed in the bottom of the degassing tank (1), a baffle plate (5) is arranged in the sludge discharge opening (4), a rotary table (6) is fixedly connected to the outer wall of the baffle plate (5), a vacuum pump (8) is fixedly connected to the top of the supporting plate (7), a first air guide pipe (9) is fixedly connected with the top of the vacuum pump (8), a second air guide pipe (9) is fixedly connected with the top cover (10), the right side of gas removal jar (1) is provided with secondary purification jar (11), the inside of secondary purification jar (11) is provided with rabbling mechanism (3), secondary purification jar (11) are connected with gas removal jar (1) through backup pad (7), there is purification top cap (12) at the top of secondary purification jar (11) through bolted connection, the outer wall fixedly connected with leakage fluid dram (13) of secondary purification jar (11), the top fixedly connected with leakage fluid valve (14) of leakage fluid dram (13).
2. 2. The secondary purification system as claimed in claim 1, wherein a liquid storage tank (15) is arranged on the left side of the degassing tank (1), a liquid storage top cover (16) is connected to the top of the liquid storage tank (15) through a bolt, a liquid inlet (17) is fixedly connected to the top of the liquid storage top cover (16), a flow guide pipe (18) is fixedly connected to the top of the degassing top cover (2), and the other end of the flow guide pipe (18) extends to the inside of the liquid storage tank (15).
3. 3. The secondary purification system as claimed in claim 2, wherein the top of the purification top cover (12) is fixedly connected with an exhaust pipe (19), the right side of the secondary purification tank (11) is provided with a combustion chamber (20), the top of the combustion chamber (20) is connected with a sealing cover (21) through a bolt, the other end of the exhaust pipe (19) is fixedly connected with the top of the sealing cover (21), the outer wall of the combustion chamber (20) is fixedly connected with an igniter (22), and the ignition end of the igniter (22) is positioned in the combustion chamber (20).
4. 4. The secondary purification system as claimed in claim 2, wherein the bottoms of the liquid storage tank (15), the degassing tank (1) and the secondary purification tank (11) are fixedly connected with wide plate supporting legs (23), and the number of the wide plate supporting legs (23) is plural.
5. 5. The secondary purification system as claimed in claim 3, wherein the bottom of the combustion chamber (20) is fixedly connected with narrow plate supporting legs (24), and a plurality of narrow plate supporting legs (24) are arranged, and sealing gaskets (25) are arranged in the interlayer between the degassing top cover (2) and the degassing tank (1), the interlayer between the secondary purification tank (11) and the purification top cover (12) and the interlayer between the liquid storage tank (15) and the liquid storage top cover (16).
6. 6. A secondary purification system according to claim 3, wherein the liquid storage tank (15) is communicated with the degassing tank (1) through a flow guide pipe (18), and the secondary purification tank (11) is communicated with the combustion chamber (20) through an exhaust pipe (19).

Description

Secondary purification system Technical Field The utility model relates to the field of petroleum and petrochemical drilling, in particular to a secondary purification system. Background When the drilling is carried out in the process of oil and gas meeting and gas layer drilling, especially under balanced drilling, the drilling fluid can be invaded by gas, if the gas invaded drilling fluid cannot be treated in time, the drilling fluid is cut off due to the fact that the efficiency of a drilling pump is reduced by a light person, density is reduced and vicious circle is formed due to heavy person, the pressure of a liquid column in the well is reduced sharply, and overflow and even blowout are easily caused. Therefore, degassing equipment must be provided when drilling wells, gas wells or high gas to oil ratio wells. The problems encountered in the current use process are that the purifying capacity of the degassing tank is insufficient, the original pressure is not high, the negative pressure value is too high, the outlet of the exhaust pipeline is provided with slurry to flow out, the outlet of the exhaust pipeline is provided with slurry to overflow, the environment pollution is not easy to be found, and the like. Disclosure of utility model The utility model aims to solve the defects in the prior art and provides a secondary purifying system. In order to achieve the aim, the secondary purification system comprises a degassing tank, the top of the degassing tank is connected with a degassing top cover through a bolt, a stirring mechanism is arranged in the degassing tank and comprises a motor, the bottom of the motor is fixedly connected with the top of the degassing top cover, the output end of the motor is fixedly connected with a rotating shaft, the outer wall of the rotating shaft is sleeved with bucket-shaped stirring blades, the number of the bucket-shaped stirring blades is two, the bottom of the degassing tank is provided with a sludge outlet, a baffle is arranged in the sludge outlet, the outer wall of the baffle is fixedly connected with a rotary table, the rotary table is positioned outside the sludge outlet, a supporting plate is fixedly connected with the top of the supporting plate, the top of the vacuum pump is fixedly connected with a first air guide pipe, the other end of the first air guide pipe is fixedly connected with the top of the degassing top cover, the side wall of the vacuum pump is fixedly connected with a second air guide pipe, the right side of the degassing tank is provided with a secondary purification tank, the inner side of the secondary purification tank is fixedly connected with a vacuum pump, the rotary table is positioned at the top of the secondary purification tank, the rotary table is fixedly connected with a vacuum pump through a liquid outlet, and the secondary purification tank is fixedly connected with a liquid outlet through a bolt. As a further description of the above technical solution: The left side of degassing tank is provided with the liquid storage pot, the top of liquid storage pot is through bolted connection has the stock solution top cap, the top fixedly connected with inlet of stock solution top cap, the top fixedly connected with honeycomb duct of degassing top cap, the other end of honeycomb duct extends to the inside of liquid storage pot. As a further description of the above technical solution: The top fixedly connected with blast pipe of purification top cap, the right side of secondary purification jar is provided with the combustion chamber, there is the closing cap at the top of combustion chamber through bolted connection, the other end of blast pipe and the top fixedly connected with of closing cap, the outer wall fixedly connected with some firearm of combustion chamber, the ignition end of some firearm is located the inside of combustion chamber. As a further description of the above technical solution: The bottom of liquid storage pot, degassing tank and secondary purification jar all fixedly connected with wide board supporting leg, and the quantity of wide board supporting leg all has a plurality ofly. As a further description of the above technical solution: The bottom fixedly connected with narrow plate supporting leg of combustion chamber, and the quantity of narrow plate supporting leg has a plurality ofly, in the intermediate layer of degasification top cap and degasification jar, in the intermediate layer of secondary purification jar and purification top cap, in the intermediate layer of liquid reserve tank and liquid reserve top cap, all be provided with sealed pad. As a further description of the above technical solution: The liquid storage tank is communicated with the degassing tank through the honeycomb duct, and the secondary purification tank is communicated with the combustion chamber through the exhaust pipe. The utility model has the following beneficial effects: 1. When the device operates, the vacuum pump starts