CN112916528B

CN112916528B - A airtight belt cleaning device for oil-water well is restoreed and is maintained

Info

Publication number: CN112916528B
Application number: CN202110171039.XA
Authority: CN
Inventors: 刘玉萍; 孙建武; 赵生勤; 赵强
Original assignee: Ningxia Zhenyan Xinshengtong Industry And Trade Co ltd
Current assignee: Ningxia Zhenyan Xinshengtong Industry And Trade Co ltd
Priority date: 2021-02-08
Filing date: 2021-02-08
Publication date: 2023-02-28
Anticipated expiration: 2041-02-08
Also published as: CN112916528A

Abstract

The invention provides a closed cleaning device for repairing and maintaining an oil-water well, which comprises an oil well, an oil pipe, a cleaning head, a crane and a cleaning agent pump tank, wherein the oil pipe and an oil well opening are sealed and fixed through a sealing block, the cleaning pipe extends into the oil pipe, the cleaning pipe comprises a sling, a closed fixed block, a liquid inlet, a liquid outlet and a circuit pipe, the cleaning head comprises a waterproof bin and a blade box, the waterproof bin comprises a motor, a lighting lamp and a camera, the blade box comprises a driven shaft fixedly connected with an output shaft of the motor and stirring blades movably connected with the blade box through movable shafts respectively, the crane is parked on the ground outside the oil well, the crane is connected with the sling through a suspension arm and a hook, and the cleaning agent pump tank is arranged on the ground outside the oil well. In a word, the invention has the advantages of novel structure, low use cost, good cleaning effect and the like.

Description

A airtight belt cleaning device for oil-water well is restoreed and is maintained

Technical Field

The invention belongs to the technical field of oil well maintenance, and particularly relates to a closed cleaning device for repairing and maintaining an oil-water well.

Background

The development of oil field is based on the detailed exploration result and necessary productive development test, on the basis of comprehensive research, according to the national requirement for crude oil production, starting from the actual condition and production rule of oil field, a reasonable development scheme is made and the oil field is constructed and put into operation, so that the oil field can be produced for a long time according to the preset production capacity and economic effect until the whole process of development is finished. Along with the extension of oil field exploitation time, pumping unit equipment is ageing serious, and in the production management process, the equipment maintenance degree of difficulty and maintenance frequency increase, staff intensity of labour is big, and the safety risk is difficult to the management and control. During the development of oil fields, oil wells need to be cleaned regularly, because wax and oil stains are formed on the surface of oil pipes during the development of oil fields, and the development of oil fields is affected.

The oil well operation cleaner is an accessory device which is used in the minor repair operation of an oil well, is arranged at the mouth of the oil well, and is used for cleaning an oil rod and an oil pipe which are pumped so as to remove oil stains on the surface of the oil rod and the oil pipe, and is widely used in the field of oil rod and oil pipe cleaning; the existing oil well operation cleaner is found to have over-high height, is easy to bring inconvenience to the working process of oil well operation and has certain potential safety hazard in use. Well cleaning is one of the high risk operations. The oil gas gushing is often faced in the oil well cleaning operation process, so that workover personnel can not normally carry out operation, and meanwhile, safety and environmental protection events are easy to occur. And because the pump is stuck in the oil well, the oil drain device is broken and taken off, and the oil drain device can not be normally opened, the cleaning operation in the oil well is very difficult.

At present, the general efficiency of the oil well cleaning device in the prior art is lower, the oil well is often required to be cleaned for more than one day after oil extraction is suspended, the oil field exploitation efficiency is seriously reduced, and the cleaning effect is also ideal. Therefore, the invention designs the closed cleaning device for repairing and maintaining the oil-water well.

Disclosure of Invention

Aiming at the existing problems, the invention provides a closed cleaning device for repairing and maintaining an oil-water well.

The technical scheme of the invention is as follows: a closed cleaning device for repairing and maintaining an oil-water well comprises an oil well, an oil pipe, a cleaning head, a crane and a cleaning agent pump tank,

the oil pipe and the oil wellhead are sealed and fixed through a sealing block,

the cleaning pipe extends into the oil pipe and comprises a sling arranged at the top end of the cleaning pipe for hoisting the cleaning pipe, a closed fixed block arranged at the top end of the oil pipe for closing the oil pipe and fixing the cleaning pipe, a liquid inlet arranged at one side of the upper end of the cleaning pipe for adding a cleaning agent into the oil well, a liquid outlet arranged at the lower end of the cleaning pipe, and a line pipe arranged inside the cleaning pipe for passing through a line,

the cleaning head is fixedly arranged at the bottom end of the cleaning pipe and comprises a waterproof bin, a lighting lamp, a camera and a blade box, wherein the waterproof bin is internally provided with a motor, the lower part of the side surface of the waterproof bin is provided with the lighting lamp for lighting, the camera is used for shooting the surrounding environment of the cleaning head, the blade box is used for stirring the cleaning agent in an oil well, the center of the blade box is provided with a driven shaft fixedly connected with an output shaft of the motor, the four side surfaces of the blade box are respectively provided with a stirring blade movably connected with the blade box through a movable shaft,

the crane is parked on the ground outside the oil well, the crane is connected with the sling through the suspension arm and the hook and is used for suspending the cleaning pipe and the cleaning head into the oil pipe,

the cleaning agent pump tank is arranged on the ground outside the oil well, and is communicated with the liquid inlet and used for pumping the cleaning agent into the oil well.

Further, motor, light respectively through the electric wire with the electrical power generating system of crane connects, the camera passes through the data line and is connected with crane control system's display screen for the picture real-time transmission that will shoot supplies crane operating personnel to watch on the display screen, the electric wire all sets up intraductal at the circuit with the data line, need not to set up the power in the cleaning head, and the circuit setting can avoid the circuit to be corroded the electric leakage by the cleaner in the circuit is intraductal, and the camera transmits real-time picture and can make things convenient for crane operating personnel to confirm the cleaning head position.

Further, when the camera is shot during oil pipe bottom edge, crane operating personnel stops transferring of scavenge pipe, and the position of scavenge head just in time is located oil pipe's below this moment, and the scavenge head is located oil pipe below and can all be stirred in the oil well and the oil pipe when stirring vane rotates, forms the vortex and peels off wax deposition and the oil stain on oil well inner wall and the oil pipe inner and outer wall.

Further, airtight fixed block divide into two parts, and every part all includes that a body coupling is the plunger of semicircle column type at airtight fixed block lower extreme, the plunger is used for filling the space between scavenge pipe and the oil pipe, and the side of airtight fixed block still is equipped with the dead slot of round indent for imbed ligature rope, reinforcement airtight fixed block, convenient operation and fixed effectual can also use the rope to consolidate, avoid the oil well internal pressure to strike airtight fixed block open, make the cleaner volatilize to the air in.

Further, rotating vane is the nature state of droing under natural state, and after the motor was opened, the blade box was driven rotatoryly by the driven shaft, and stirring vane outwards opens under the effect of centrifugal force for stir the interior cleaner of oil well, the nature state of droing can do benefit to in the cleaning head gets into the oil pipe, opens during the stirring and provides stirring power, makes wax deposition and the oil dirt on oil well inner wall and the oil pipe inside and outside wall clear away efficiency and improves.

Further, the whole diameter when stirring vane expandes is less than the oil well internal diameter, and is greater than the external diameter of oil pipe, avoids stirring vane to contact the oil well inner wall at the during operation and causes stirring vane to damage or stir the dynamics not enough.

Furthermore, the places where the cleaning pipe and the cleaning head are exposed are sprayed with anti-corrosion paint, so that the cleaning agent is prevented from corroding the cleaning pipe and the cleaning head.

Furthermore, the inside heater that is used for heating cleaner in the cleaner pump jar that is equipped with of cleaner pump jar, cleaner heating back activity is higher, washs wax deposition and the oil dirt on oil well inner wall and the oil pipe inside and outside wall more easily.

The working principle of the invention is as follows: disconnecting the upper end of an oil pipe from an oil pumping device, lifting a cleaning pipe to the upper side of the oil pipe by using a crane, manually guiding a cleaning head to stretch into the oil pipe, then lowering a lifting hook by using the crane, integrally lowering the cleaning pipe and the cleaning head into the oil pipe, after the cleaning pipe enters the oil pipe, starting a lighting lamp and a camera on the cleaning head, shooting an oil pipe image outside the cleaning head in real time by using the camera and transmitting the image to the crane, when the bottom end edge of the oil pipe is shot by using the camera, stopping lowering the cleaning pipe by using a crane operator, just positioning the cleaning head below the oil pipe, respectively plugging a plunger of a sealed fixed block into a gap between the cleaning pipe and the oil pipe, then fixing the cleaning pipe in a hollow groove by using a rope, connecting a liquid inlet of the cleaning pipe with a pump tank of the cleaning machine, pumping the heated cleaning agent into the oil pipe through the inside of the cleaning pipe by using the pump tank of the cleaning machine, starting a motor to drive the oil pipe to rotate, stirring blades on the side of the blade box to stir the cleaning agent outwards under the action of a centrifugal force, forming a vortex rotating high-speed rotating cleaning agent, and flushing inner wall of the oil pipe, and lifting the cleaning sewage from the oil pipe by using a lifting bucket to lift the cleaning machine.

The beneficial effects of the invention are: the invention provides a closed cleaning device for repairing and maintaining an oil-water well, which is characterized in that a cleaning pipe and a cleaning head are hung in an oil pipe of an oil well by a crane, the cleaning head is accurately lowered to the bottom end of the oil pipe by a camera arranged on the cleaning head, the cleaning pipe is fixed in the oil pipe in a sealing manner by a closed fixing block, a cleaning agent pump tank is arranged outside the oil well, a heated cleaning agent can be added into the oil well by the cleaning machine pump tank, a motor in the cleaning head drives a blade box below the cleaning head to rotate, a rotating blade at the side of the blade box is in a natural falling state in a natural state, after the motor is started, the blade box is driven to rotate by a driven shaft, a stirring blade is outwards opened under the action of centrifugal force to stir the cleaning agent in the oil well, so that the cleaning agent forms a high-speed rotating vortex to wash and clean wax and oil dirt on the inner wall of the oil well and the inner wall of the oil pipe, and the cleaning effect is good and the efficiency is high. In a word, the invention has the advantages of novel structure, low use cost, good cleaning effect and the like.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the cleaning head of the present invention;

FIG. 3 is a cross-sectional view of the cleaning head of the present invention;

FIG. 4 is a schematic view of a blade cartridge configuration of the present invention;

fig. 5 is a schematic structural view of the sealing fixed block of the present invention.

The device comprises an oil well 1, an oil pipe 2, a sealing block 21, a cleaning pipe 3, a sling 31, a sealed fixed block 32, a plunger 321, a plunger 322, an empty groove 33, a liquid inlet 33, a liquid outlet 34, a line pipe 35, a cleaning head 4, a waterproof bin 41, a motor 411, a lighting lamp 412, a camera 413, a blade box 42, a driven shaft 421, a stirring blade 422, a movable shaft 423, a crane 5, a suspension arm 51, a hook 52, a cleaning agent pump tank 6 and a heater 61.

Detailed Description

For the convenience of understanding the technical solution of the present invention, the present invention is further explained with reference to fig. 1 to 5 and specific examples, which are not to be construed as limiting the scope of the present invention.

Example (b): as shown in figure 1, the closed cleaning device for repairing and maintaining the oil-water well comprises an oil well 1, an oil pipe 2, a cleaning pipe 3, a cleaning head 4, a crane 5 and a cleaning agent pump tank 6,

the oil pipe 2 and the oil wellhead 1 are sealed and fixed through a sealing block 21,

the cleaning pipe 3 extends into the oil pipe 2, the cleaning pipe 3 comprises a sling 31 which is arranged at the top end of the cleaning pipe 3 and is used for hoisting the cleaning pipe 3, a closed fixing block 32 which is arranged at the top end of the oil pipe 2 and is used for closing the oil pipe 2 and fixing the cleaning pipe 3,

as shown in fig. 5, the sealing fixed block 32 is divided into two parts, each of which includes a semi-cylindrical plunger 321 integrally connected to the lower end of the sealing fixed block 32, the plunger 321 is used for filling the gap between the cleaning pipe 3 and the oil pipe 2, a circle of concave empty slot 322 is further provided on the side of the sealing fixed block 32 for embedding the binding rope and reinforcing the sealing fixed block 32,

a liquid inlet 33 arranged at one side of the upper end of the cleaning pipe 3 and used for adding cleaning agent into the oil well 1, a liquid outlet 34 arranged at the lower end of the cleaning pipe 3, a line pipe 35 arranged inside the cleaning pipe 3 and used for passing through a line,

as shown in fig. 2-3, the cleaning head 4 is fixedly arranged at the bottom end of the cleaning pipe 2, the cleaning head 4 comprises a waterproof bin 41 with a motor 411 arranged inside, the lower part of the side surface of the waterproof bin 41 is provided with a lighting lamp 412 for lighting and a camera 413 for shooting the surrounding environment of the cleaning head 4, the motor 411 and the lighting lamp 412 are respectively connected with a power supply system of the crane 5 through electric wires, the camera 413 is connected with a display screen of a control system of the crane 5 through a data wire and is used for transmitting the shot pictures to the display screen in real time for an operator of the crane 5 to watch, when the camera 413 shoots the bottom end edge of the oil pipe 2, the operator of the crane 5 stops the downward placement of the cleaning pipe 3, at the moment, the position of the cleaning head 4 is just below the oil pipe 2, the electric wires and the data wires are both arranged in the line pipe 35,

as shown in fig. 4, a blade box 42 for stirring the cleaning agent in the oil well 1, a driven shaft 421 fixedly connected with the output shaft of the motor 411 is arranged at the center of the blade box 42, stirring blades 422 movably connected with the blade box 42 through movable shafts 423 are respectively arranged at four side surfaces of the blade box 42, the rotating blades 422 are in a natural falling state in a natural state, after the motor 411 is started, the blade box 42 is driven by the driven shaft 421 to rotate, the stirring blades 422 are outwards opened under the action of centrifugal force for stirring the cleaning agent in the oil well 1, the overall diameter of the stirring blades 422 when being opened is smaller than the inner diameter of the oil well 1 and larger than the outer diameter of the oil pipe 2,

ZS-711 inorganic anti-corrosion paint is sprayed on the exposed positions of the cleaning pipe 3 and the cleaning head 4,

the hoist 5 is parked on the ground outside the oil well 1, the hoist 5 is connected with the hoist line 31 through the boom 51 and the hook 52 for hoisting the cleaning pipe 3 and the cleaning head 4 into the oil pipe 2,

the setting of cleaner pump jar 6 is subaerial in the 1 outside of oil well, and cleaner pump jar 6 is inside to be equipped with the heater 61 that is used for carrying out the heating to the cleaner in the cleaner pump jar 6, and cleaner pump jar 6 and inlet 33 intercommunication for go into oil well 1 with the cleaner pump.

The motor 411 is a YZO-50-6 high-speed motor, the illuminating lamp 412 is a 12W LED SMD underwater spotlight, the camera 413 is a JSA-8UWIPC underwater high-definition camera, the cleaning agent is a special cleaning agent solution for a blue star JY59DA oil field, and the heater 61 is a PTC semiconductor heater.

The working method of the embodiment comprises the following steps: disconnecting the upper end of an oil pipe 2 from an oil pumping device, lifting a cleaning pipe 3 above the oil pipe 2 by using a crane 5, manually guiding a cleaning head 4 to extend into the oil pipe 2, then lowering a lifting hook 52 by using the crane 5, integrally lowering the cleaning pipe 3 and the cleaning head 4 into the oil pipe 2, after entering the oil pipe 2, starting an illuminating lamp 412 and a camera 413 on the cleaning head 4, shooting images of the oil pipe 2 outside the cleaning head 4 by the camera 413 in real time and transmitting the images to the crane 5, stopping lowering of the cleaning pipe 3 by using an operator of the crane 5 when the camera 413 shoots the bottom end edge of the oil pipe 2, just positioning the cleaning head 4 below the oil pipe 2 at the moment, respectively plugging a plunger 321 of a closed fixed block 32 into a gap between the cleaning pipe 3 and the oil pipe 2, and then binding the cleaning pipe 3 in a hollow groove 322 by using a rope to fix the cleaning pipe 3, the liquid inlet 34 of the cleaning pipe 3 is connected with the cleaning machine pump tank 6, the cleaning machine pump tank 6 pumps the heated cleaning agent into an oil well through the inside of the cleaning pipe 3, after the cleaning agent is added, the motor 411 is started to drive the blade box 42 to rotate, the stirring blades 422 on the side edge of the blade box 42 are opened outwards under the action of centrifugal force to stir the cleaning agent in the oil well 1, so that the cleaning agent forms a vortex rotating at a high speed, wax and grease on the inner wall of the oil well 1 and the inner and outer walls of the oil pipe 2 are washed and cleaned, the closed fixing block 32 is taken down after the cleaning is finished, then the cleaning pipe 3 is vertically lifted by using the crane 5 and lifted away from the oil pipe 2, the sewage in the oil well 1 is pumped away by using a water pump, and the cleaning of the oil well 1 is finished.

Experimental example: the cleaning effect of the cleaning device provided by the research embodiment

Two groups of oil wells A and B which need to be cleaned are selected for comparison, the specifications of the oil wells A and B are the same, the production time is the same, the cleaning device provided by the embodiment and a commercially available IZARL imported oil field well flushing machine are respectively utilized to clean the oil wells A and B, the time spent in cleaning, the cleaning cost, the number of cleaning personnel and the oil stain removal rate are respectively recorded, and the results are shown in Table 1:

TABLE 1 cleaning data comparison Table

And (4) conclusion: the cleaning device provided by the invention has the advantages that the time consumed for cleaning the primary oil well is far shorter than that of a commercially available cleaning device, the cleaning cost is low, the number of required workers is small, and the oil stain removal rate is higher than that of the commercially available cleaning device, so that the cleaning device provided by the invention is superior to the prior art, the maintenance time and the maintenance cost are saved for oil field development, and the oil field exploitation time is prolonged.

Claims

1. A closed cleaning device for repairing and maintaining an oil-water well is characterized by comprising an oil well (1), an oil pipe (2), a cleaning pipe (3), a cleaning head (4), a crane (5) and a cleaning agent pump tank (6),

the oil pipe (2) and the opening of the oil well (1) are sealed and fixed through a sealing block (21),

the cleaning pipe (3) extends into the oil pipe (2), the cleaning pipe (3) comprises a sling (31) which is arranged at the top end of the cleaning pipe (3) and used for hoisting the cleaning pipe (3), an airtight fixed block (32) which is arranged at the top end of the oil pipe (2) and used for sealing the oil pipe (2) and fixing the cleaning pipe (3), a liquid inlet (33) which is arranged at one side of the upper end of the cleaning pipe (3) and used for adding a cleaning agent into the oil well (1), a liquid outlet (34) which is arranged at the lower end of the cleaning pipe (3), and a line pipe (35) which is arranged inside the cleaning pipe (3) and used for passing through a line,

the cleaning head (4) is fixedly arranged at the bottom end of the cleaning pipe (3), the cleaning head (4) comprises a waterproof bin (41) internally provided with a motor (411), the lower part of the side surface of the waterproof bin (41) is provided with a lighting lamp (412) for lighting and a camera (413) for shooting the surrounding environment of the cleaning head (4), a blade box (42) for stirring cleaning agents in an oil well (1), the center of the blade box (42) is provided with a driven shaft (421) fixedly connected with an output shaft of the motor (411), four side surfaces of the blade box (42) are respectively provided with a stirring blade (422) movably connected with the blade box (42) through a movable shaft (423), the whole diameter of the stirring blade (422) when the stirring blade (422) is unfolded is smaller than the inner diameter of the oil well (1) and larger than the outer diameter of the oil pipe (2),

the crane (5) is parked on the ground outside the oil well (1), the crane (5) is connected with the sling (31) through a suspension arm (51) and a hook (52) and is used for hoisting the cleaning pipe (3) and the cleaning head (4) into the oil pipe (2),

the cleaning agent pump tank (6) is arranged on the ground outside the oil well (1), and the cleaning agent pump tank (6) is communicated with the liquid inlet (33) and used for pumping the cleaning agent into the oil well (1).

2. The closed cleaning device for repairing and maintaining oil-water wells is characterized in that the motor (411) and the illuminating lamp (412) are respectively connected with a power supply system of the crane (5) through electric wires, the camera (413) is connected with a display screen of a control system of the crane (5) through a data wire and used for transmitting shot pictures to the display screen in real time for an operator of the crane (5) to watch, and the electric wires and the data wire are both arranged in a line pipe (35).

3. A closed cleaning device for oil and water well repair and maintenance according to claim 1, characterized in that when the camera (413) photographs the bottom end edge of the oil pipe (2), the crane (5) operator stops lowering the cleaning pipe (3) with the cleaning head (4) positioned just below the oil pipe (2).

4. The closed cleaning device for repairing and maintaining the oil-water well is characterized in that the closed fixing block (32) is divided into two parts, each part comprises a plunger (321) which is integrally connected to the lower end of the closed fixing block (32) and is in a semi-cylindrical shape, the plunger (321) is used for filling a gap between the cleaning pipe (3) and the oil pipe (2), and a circle of concave empty groove (322) is further formed in the side face of the closed fixing block (32) and is used for embedding a binding rope to reinforce the closed fixing block (32).

5. The closed cleaning device for repairing and maintaining oil-water wells according to claim 1, wherein the exposed positions of the cleaning pipe (3) and the cleaning head (4) are coated with an anti-corrosion coating.

6. The closed cleaning device for repairing and maintaining the oil-water well is characterized in that a heater (61) for heating the cleaning agent in the cleaning agent pump tank (6) is arranged in the cleaning agent pump tank (6).