RU8741U1 - MULTIFUNCTIONAL PUMP UNIT WITH A HEATER - Google Patents

Abstract

1. A multifunctional pump installation with a heater, including a conveyor base with an internal combustion engine, on the platform of which a pump is mounted, driven from the specified engine through a transmission, including a transfer case and a power take-off box, the pump suction line communicating with an external source of working fluid, and the discharge through a heater, a pressure pipeline and shut-off and control valves - with wellhead equipment, a fan and a fuel pump that ensure operation heater, an inert gas supply system to the heater in case of emergency, characterized in that the pump discharge line is equipped with an additional pressure pipe for flushing and squeezing with a non-aggressive working fluid and the first high-pressure valve and the first safety valve designed for the maximum pressure specified liquid, as well as a second high-pressure valve installed in it before the heater, after which a second safety valve is installed, calculated at the maximum pressure of the working fluid supplied to the heater and providing, when the specified pressure is increased, the fluid bypass into the suction line of the pump. 2. Installation according to claim 1, characterized in that the transmission of the installation includes an additional power take-off box mounted on a transfer box connected through a cardan shaft, a gearbox and two V-belt drives with drive shafts of the fan and fuel pump and controlled by an air chamber.

Description

Multifunctional pumping unit with heater

The utility model relates to the field of pumping units and, in particular, can be used in the oil industry for dewaxing wells, pipelines and other equipment, heating and pumping liquids, and for flushing and flushing operations.

When the oil contains 2-3% or more of paraffin, intensive deposits are observed in the pipes, covering a significant part of their cross section. Deposition of paraffin is removed by various, including thermal methods. One of the thermal methods is the method of injection into a well of oil heated to a temperature of 150 ° C at pressures of the order of 16 MPa. To implement this method, use the 1ADP-4-150 pumping unit (see, for example, the book Operation and Technology for the Development of Oil and Gas Fields by I.D. Amelin, R.S. Andriasov and others. Moscow Nedra 1978, p. 283 ) The closest solution to the claimed technical solution is the ADPM-12 / 150U1 unit (see the book Special Automobile and Tractor Equipment in the Oil Industry. Part 1. The authors of the Tyumen Industrial Institute (led by OF Danilov et al.) And VNIIOENG (under management of G.F. Fastovtsev et al.) Moscow VNIIOENG, 1990, pp. 125-131 - Appendix 1.J The ADPM12 / 150U1 unit is designed to heat and pump oil into wells located in areas with a temperate climate, in order to remove paraffin. The unit ADPM-12 / 150B1A includes the chassis of the KrAZ-255 UAV car, on the platform of which a manifold, heater, air supply system, shut-off and control valves are mounted.

MKI FO4B 23/00

 1 agroratol, air supply system, air pressure regulating armature, pump, transmission of mechanisms, inert gas supply system in

emergency heater.

The disadvantage of this pump unit is its unsuitability for flushing and sales operations in oil wells. To carry out such work, often required during the operation of oil wells, separate pumping units are used - ЦА-320А, 5 ЦА-32-С, etc., described in the same source - p. 77-125.

The utility model is based on the task of expanding the technological capabilities of a pumping unit with a heater, ensuring that this unit can carry out flushing and pumping operations in oil wells, heating and pumping

and about"

oil, water and other technological fluids into wells,

pipelines and other equipment.

The solution to this problem is ensured by the fact that a multifunctional installation with a heater, including a transport base with an internal combustion engine, on the platform of which a pump is mounted driven from the specified engine through a transmission, including a transfer case and a selection box (power, has a suction line in communication with an external working source liquids, and discharge - through the heater, pressure pipe and pressure regulating valves - with

wellhead equipment. It also includes a fan and a fuel pump, which provides the specified heater and an inert gas supply system to the heater in case of emergency. In this case, the discharge line of the pump for supplying an additional pressure pipe for flushing and squeezing with a non-aggressive liquid and the first high-pressure valve and the first safety valve installed in it, designed for

maximum pressure of the specified fluid. In addition, it supplies the second high-pressure valve installed in it before heating, after which a second safety valve is installed, designed for the maximum pressure of the working fluid supplied to the heater, and providing when the specified pressure is exceeded, the fluid is transferred to the suction line of the pump. Transmission - .rzs Ж,:; .g I-i::. - ;, ..TS. :; -. sz: ..U .--. y2: r -.; -. isf, i, .. g asi; y y-aHg r; iga rr 4 -; jz Ha H BBH of the installation includes an additional power take-off mounted on the transfer case, connected via a cardan shaft, gearbox or intermediate support and two wedge-shaped gears with drive shafts of the fan and fuel pump and controlled by an air chamber. This embodiment of a multifunctional pumping unit with a heater allows to expand its technological capabilities by ensuring the pumping of non-aggressive working fluid during npoMbiBoi - o-selling operations with the same pump that is used when working with the heater. During flushing-and-selling operations, the fan and the fuel pump, ensuring the operation of the heater, can be easily disconnected from the transmission of the installation, and non-aggressive working fluid can be supplied to the well through an additional pressure pipe. The drawing shows a schematic diagram of a multifunctional pumping unit with a heater in accordance with this application.

The pump installation (see Fig.) Is mounted on the chassis of car 1. It is driven from the engine 2 of the car through clutch 3, gear box 4 and transfer case 5, ma co ofaelt

two power take-offs 6 and 7 are installed. The power take-off 6 is connected to the intermediate gearbox 9 by a cardan shaft 8, rotation from which can be transmitted through a cardan joint 10 to the drive shaft of the high-pressure pump 11 with a mounted gearbox 12. The pump 11 has a suction line 13, which through the gate valves 14 and 15 and the suction hoses 16 and 17 is connected to an external source (e.g., a tank or other reservoir) of the working fluid (not shown in Fig.). The discharge line 18 of the pump 11 through high-pressure valves 19 and 20 is connected with an additional pressure pipe 21 and a heater 22, which is a pipe 23 that serves to supply hot working fluid to the well, which includes a check valve 24, valve 25, and an articulated elbow 26 , auxiliary pipeline 27 and adapter 28, is connected to the equipment of the wellhead 29, equipped with valves 30 and 31. The discharge line 18 of the pump 11 is equipped with a safety valve 32 and a safety bypass valve 33. Installation about equipped with a fan 34 and a fuel pump 35, which ensure the operation of the heater 22. The fan 34 and the fuel pump 35 are driven from the power take-off 7 installed on the transfer case 5 of the car 1. The rotation from the power take-off 7 can be transmitted through a cardan shaft 36 to the gearbox (or intermediate support) 37 onwards through V-belt drives 38 and 39 to drive shafts of fan 34 and fuel pump 35, respectively.

The fan 34 is connected by a separate pipe 40, equipped with an adjustable shutter 41, with a heater 22. The fuel pump 35 is connected with a tank for diesel fuel 42 by a pipe 43 with a filter 44 installed in it and a shut-off valve by a heater 22 - a pipe 46 with an electromagnetic filter 47 installed in it a valve 48 and a shut-off valve 49. For an emergency stop of the combustion process, the installation is equipped with an inert gas supply system, including a cylinder 50 with carbon dioxide.

communicated by the pipeline 51 with the heater 22. The pipeline 51 includes a gearbox 52, an electromagnetic valve 53 and an overflow shutoff valve 54. Clutch 3 of the engine 2 can

turn on and off through the electropneumatic valve (not shown) using the air chamber 55. The power take-off 7 can turn on and off the i-cut electropneumatic valve (not shown) with 1 using the air chamber 56. The fuel pump 35 is supplied; drain pipe 57 through an adjustable valve 58 is connected to the tank for diesel fuel 42. The discharge line of the pump 11 has a lateral 59 with a valve 60, and the pipe 23 is equipped with a side outlet 61 with a valve 62.

The installation is as follows. When using the installation for dewaxing wells with hot oil, the high pressure valve 19 is closed, and the high pressure valve 20 is opened. When working in conditions of low ambient temperature according to the command from the control panel in the driver’s cabin, using air chambers 55 and 56, they include clutch 3 and power take-off 7, due to which through the driveshaft 36, gearbox (or intermediate support) 37 and V-belt drives 38 and 39, respectively, the fan 34 and the fuel pump 35 are driven. As a result, air is supplied to the heater 22 by the fan 34 through the pipe 40 and through the adjustable shutter 41, and from the tank 42 through the open shut-off valve 45, pipe 43, the filter 44, pipe 46, filter 47, solenoid valve 48 and open shutoff valve 49 — diesel fuel. At the same time, the adjustable valve 58 is closed. As a result, the combustion process of diesel fuel begins in the heater, which provides heating of oil in the coil of the heater 22 and in the adjacent pipe 18 to a temperature that reduces its viscosity and facilitates its pumping 11 into the well. After a few minutes, the power take-off box 6 is turned on from the driver’s cab, from which the torque is transmitted through the driveshaft 8, the intermediate gearbox 9, the cardan joint 10 and the mounted gearbox 12 of the drive part of the high-pressure pump 11, which begins to pump oil from a separate tank or tanks (not shown in FIG.) through

the suction hoses 16 and 17 (with open valves 14 and 15) and the suction line 13 of the pump 11 into the discharge line 18, including a heater 22. In the latter, the pumped oil is heated to a temperature that ensures the melting of paraffin, resins and acic mixtures with sand, clay, inorganic salts, iron sulfides, and other substances that require solid precipitation on the walls of pipes, equipment of a pump and compressor string, a downhole pump, and in the bottom hole zone of a well.

Passing the heater 22, the pumped oil passes through a pipe 23 through a check valve 24, an open valve 25, an articulated elbow 26, an auxiliary pipe 27, an adapter 28 and an open gate valve 30 into the well. Subsequently, hot oil, first entering the annulus of the well 63, and then inside the pump and compressor string 64, provides dewaxing of the downhole equipment and exits through the upper end of the pump and compressor string 64 and side valves 31 to the surface where it is diverted to a special container (not shown).

In case of violation of the diesel fuel combustion mode in the heater 22 and the danger of an emergency using an automatic anti-Baric system (of a known type) not shown in the attached drawing, the electromagnetic valve 48 is activated, blocking the fuel supply to the heater 22, while the fuel pump 35 pumps the diesel fuel through the drain pipe 57 through the adjustable valve 58 back to the tank for diesel fuel 42. When the above emergency system is triggered simultaneously with the actuation m electromagnetic valve 48 shuts off fuel to the heater 22 is activated and solenoid valve 53, providing a supply of inert gas from the cylinder 50 through conduit 51 through the reducer 52 and thus stop the combustion process. At the same time, using the air chamber 55, the clutch 3 is disengaged through the electropneumatic fan (not shown in the drawing), providing a stop for the pump 11, fan 34 and fuel pump 35.

on the discharge line 18 of the pump 11 and the oil is discharged into the suction line 13 of the pump 11. The safety valve 32 does not work, because it is set to a higher maximum discharge pressure during flushing and batching operations (which will be described below).

If necessary (for example, at the end of the work on pumping hot oil into cf.zhin), drains are carried out: oil from pipeline 18 by opening valves 60 and 62. The installation works with process water and other process fluids to heat and pump them into wells, pipelines and other equipment during various technological operations is carried out similarly to the process of working with oil described above. In this case, the pipeline 23 with the help of an articulated elbow 26, an auxiliary pipeline 27, and an adapter 28 can likewise be connected to both wells and land pipelines and other equipment.

When washing and selling operations, the high pressure valve 19 is opened, and the high pressure valve 20 is closed. A pressure line 21 is connected to the equipment harness of the wellhead 29. The suction line 13 of the pump 11 is connected to an external source through the gate valves 14 and 15 and the suction hoses 16 and 17 or

sources (not shown) of non-aggressive fluid used in flushing and squeezing operations. The pump 11 is driven by turning on the power take-off 6 (the power take-off 7 is not used). Non-aggressive liquid is sucked up by the pump 11 through the suction line 13 and is pumped through the pressure pipe 21 with the high pressure valve 19 open to the well. If the permissible pressure limit is exceeded during flushing and squeezing operations, the safety valve 32 activates (while the safety bypass valve 33 is isolated by a closed high-pressure valve 20) and occurs

discharge of fluid into a drain pipe (not shown).

Authors:

V.N. Martynov

 V.Gdrutsky

/ / .N. Martynov

Claims (2)

1. A multifunctional pump installation with a heater, including a conveyor base with an internal combustion engine, on the platform of which a pump is mounted, driven from the specified engine through a transmission, including a transfer case and a power take-off box, the pump suction line communicating with an external source of working fluid, and the discharge through a heater, a pressure pipeline and shut-off and control valves - with wellhead equipment, a fan and a fuel pump that ensure operation heater, an inert gas supply system to the heater in case of emergency, characterized in that the pump discharge line is equipped with an additional pressure pipe for flushing and squeezing with a non-aggressive working fluid and the first high-pressure valve and the first safety valve designed for the maximum pressure specified liquid, as well as a second high-pressure valve installed in it before the heater, after which a second safety valve is installed, calculated on the maximum pressure of the working fluid supplied to the heater and providing, when the specified pressure is increased, the fluid bypass into the suction line of the pump. 2. Installation according to claim 1, characterized in that the transmission of the installation includes an additional power take-off mounted on a transfer case, connected through a cardan shaft, gearbox and two V-belt drives with drive shafts of the fan and fuel pump and controlled by an air chamber.