The main contents of the wellbore equipment are: installation of permanent derrick (or pylon), permanent hoist, tank girders, tank roads, ladders, pipelines, cables, bottom hole support structures, wire rope terminal facilities, and managed beams, cable supports, Anti-rolling device, etc. These projects are generally in the main and deputy and reach the design depth. The two wells have been penetrated and formed into a ventilation and transportation system. The two wells alternate the construction sequence of permanent equipment.
When the main and auxiliary wells are permanently lifted using the drum hoist and the steel derrick, the construction of the permanent hoisting machine and the hoist installation do not occupy the wellhead operation time; the steel derrick can adopt the ground combination, the overall standing construction method, generally only accounts for the wellhead operation time. 5 to 7 days. At present, most of the main and auxiliary shaft hoists of large and medium-sized mines use multi-rope friction wheels and reinforced concrete well towers. The hoist is installed at the top of the well tower. The building structure is complex, difficult, and the construction time is long. It usually takes about 10 months, and the hoist installation takes 8-10 months. The alternate equipment duration of the main and auxiliary wells is about 36~40 months.
How A wellbore equipment works
a One-time installation Use a multi-layer hanging plate (or a hanging plate with a hanging cage) from the bottom of the well to fully equip the canister beam, tank path and piping in the wellbore. The one-time installation method can be further divided into: a segmented cycle installation method and a layer-by-layer continuous installation method. The first method is to continuously install the tank rail from the bottom to the top !* ( "* layer, install the pipeline at the same time, and then install the tank channel from the bottom up.
The second method is to complete all the equipment in one time in a wellbore equipped with a resin anchor to fix the wellbore.
b hierarchical mounting downward the tank mounting all wells beam path from the wellhead on the hanging plate, steel beams and cables were his card, and the tank is mounted on a track from the cage bottom upwards, and finally line up from the bottom installation.
The main advantage of one installation is the high utilization rate of work and the quick construction speed, which is conducive to improving the quality of the project. The main disadvantage is the complexity of the work organization, the need for more equipment and facilities, and the structure of the hanging plate is complicated.
The installation is simple and safe in several stages; it is suitable for any complicated tank beam layout. The disadvantage is that the construction process is repeated and the construction time is long. Multi-metal mine using graded installation practices.
c Digging a way to build a well, that is, using a hanging plate to install tank rails, tanks, ladders, etc. from top to bottom.
B Tank rail installation is carried out on the sling. The structure of the hanging plate has a single layer, two layers, three layers or even four layers and five layers according to the construction requirements. Double-layer hanging plates are commonly used for the installation of the suspension; four or five layers of hanging plates are used for one installation. The spacing of the hanging plate layer should be consistent with the layer distance of the canal beam. The column should avoid the position of the beam and the hanging steel rope should not interfere with the installation of the canal beam. The installation sequence of the canal beam is generally the main beam near the front of the ladder to install the auxiliary beam and the installation ladder, which can be carried out simultaneously with the installation of other main beams.
Auxiliary tank beam and length less than 2.5m  The following components and parts are transported into the well by buckets. The structure of more than 2.5m , such as the main tank beam, is sent to the well by a special suspension device.
C tank installation
a Rigid tank installations are generally carried out in cages. Due to different construction methods, the cage has three, four or five layers. The layer spacing of the cage is equal to the spacing of the tank beams. Three-layer cages for wooden tanks are usually installed, and four-layer cages for metal tanks are installed. During installation, the canister is suspended by a winch and sent to the wellbore. Under the single root of the wooden tank, the metal tank can be lowered by a plurality of hanging devices. After the tank channel is installed in the tank girth, the workers on each layer of the cage can simultaneously clamp the tank channel with steel clips.
b Installation of wire rope cans According to different fixing and tensioning positions of wire rope cans, it can be divided into two methods: bottom hole weight tightening and derrick screw tensioning:
( 1 ) The bottom hammer is tightened. That is, the upper end of the tank is fixed on the derrick by a wedge-shaped fixing device, and the bottom of the tank is tightened by a weight device.
( 2 ) The derrick screw tensioning method. The lower end of the tank is fixed to the bottom of the well with a rope clamp, and the upper end is connected to the derrick by a screw tensioning device. Due to its limited tension, it is not suitable for use in deep wells.
D Ladder and pipeline installation Ladders are usually installed at the same time with the tank beam. The pipelines are installed in a bottom-up sequence, that is, a support beam is first erected at the joint between the wellbore and the pipe, and a support with a bent pipe is installed thereon, and then the pipe is installed upward. The pipe is installed on a can or cage. Mounting brackets for power, signal, and cables are installed while the tank rails are installed. The cable is bundled on the wire rope, lowered from the ground to the bottom of the well, and then the cable clamp is clamped down from the ground.
When the main and auxiliary wells are permanently lifted using the drum hoist and the steel derrick, the construction of the permanent hoisting machine and the hoist installation do not occupy the wellhead operation time; the steel derrick can adopt the ground combination, the overall standing construction method, generally only accounts for the wellhead operation time. 5 to 7 days. At present, most of the main and auxiliary shaft hoists of large and medium-sized mines use multi-rope friction wheels and reinforced concrete well towers. The hoist is installed at the top of the well tower. The building structure is complex, difficult, and the construction time is long. It usually takes about 10 months, and the hoist installation takes 8-10 months. The alternate equipment duration of the main and auxiliary wells is about 36~40 months.
How A wellbore equipment works
a One-time installation Use a multi-layer hanging plate (or a hanging plate with a hanging cage) from the bottom of the well to fully equip the canister beam, tank path and piping in the wellbore. The one-time installation method can be further divided into: a segmented cycle installation method and a layer-by-layer continuous installation method. The first method is to continuously install the tank rail from the bottom to the top !* ( "* layer, install the pipeline at the same time, and then install the tank channel from the bottom up.
The second method is to complete all the equipment in one time in a wellbore equipped with a resin anchor to fix the wellbore.
b hierarchical mounting downward the tank mounting all wells beam path from the wellhead on the hanging plate, steel beams and cables were his card, and the tank is mounted on a track from the cage bottom upwards, and finally line up from the bottom installation.
The main advantage of one installation is the high utilization rate of work and the quick construction speed, which is conducive to improving the quality of the project. The main disadvantage is the complexity of the work organization, the need for more equipment and facilities, and the structure of the hanging plate is complicated.
The installation is simple and safe in several stages; it is suitable for any complicated tank beam layout. The disadvantage is that the construction process is repeated and the construction time is long. Multi-metal mine using graded installation practices.
c Digging a way to build a well, that is, using a hanging plate to install tank rails, tanks, ladders, etc. from top to bottom.
B Tank rail installation is carried out on the sling. The structure of the hanging plate has a single layer, two layers, three layers or even four layers and five layers according to the construction requirements. Double-layer hanging plates are commonly used for the installation of the suspension; four or five layers of hanging plates are used for one installation. The spacing of the hanging plate layer should be consistent with the layer distance of the canal beam. The column should avoid the position of the beam and the hanging steel rope should not interfere with the installation of the canal beam. The installation sequence of the canal beam is generally the main beam near the front of the ladder to install the auxiliary beam and the installation ladder, which can be carried out simultaneously with the installation of other main beams.
Auxiliary tank beam and length less than 2.5m  The following components and parts are transported into the well by buckets. The structure of more than 2.5m , such as the main tank beam, is sent to the well by a special suspension device.
C tank installation
a Rigid tank installations are generally carried out in cages. Due to different construction methods, the cage has three, four or five layers. The layer spacing of the cage is equal to the spacing of the tank beams. Three-layer cages for wooden tanks are usually installed, and four-layer cages for metal tanks are installed. During installation, the canister is suspended by a winch and sent to the wellbore. Under the single root of the wooden tank, the metal tank can be lowered by a plurality of hanging devices. After the tank channel is installed in the tank girth, the workers on each layer of the cage can simultaneously clamp the tank channel with steel clips.
b Installation of wire rope cans According to different fixing and tensioning positions of wire rope cans, it can be divided into two methods: bottom hole weight tightening and derrick screw tensioning:
( 1 ) The bottom hammer is tightened. That is, the upper end of the tank is fixed on the derrick by a wedge-shaped fixing device, and the bottom of the tank is tightened by a weight device.
( 2 ) The derrick screw tensioning method. The lower end of the tank is fixed to the bottom of the well with a rope clamp, and the upper end is connected to the derrick by a screw tensioning device. Due to its limited tension, it is not suitable for use in deep wells.
D Ladder and pipeline installation Ladders are usually installed at the same time with the tank beam. The pipelines are installed in a bottom-up sequence, that is, a support beam is first erected at the joint between the wellbore and the pipe, and a support with a bent pipe is installed thereon, and then the pipe is installed upward. The pipe is installed on a can or cage. Mounting brackets for power, signal, and cables are installed while the tank rails are installed. The cable is bundled on the wire rope, lowered from the ground to the bottom of the well, and then the cable clamp is clamped down from the ground.
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