CN108360988B

CN108360988B - Petroleum well wall exploitation impurity cleaning system

Info

Publication number: CN108360988B
Application number: CN201810202664.4A
Authority: CN
Inventors: 林继承; 姚本奇; 何旭
Original assignee: Xuzhou Chengkai Intellectual Property Service Co Ltd
Current assignee: Xinyi Zhihuo Intelligent Technology Co.,Ltd.
Priority date: 2018-03-13
Filing date: 2018-03-13
Publication date: 2020-08-04
Anticipated expiration: 2038-03-13
Also published as: CN108360988A

Abstract

The invention belongs to the technical field of petroleum drilling equipment, and particularly relates to an impurity cleaning system for mining walls of petroleum wells, which comprises a rack, wherein a motor box is installed at the top of the rack, an outer retractable pulley is installed below the motor box, baffles are welded on two sides of the rack, a balance unit is arranged on the lower surface of each baffle, an inner channel is arranged in the rack, an inner retractable pulley is installed at the top of the inner channel, sludge boxes are installed on two sides of the bottom of the inner channel, a power device is hung below the inner retractable pulley, a hydraulic rod is installed in the power device, tamping arms are installed on the outer walls of two sides of the hydraulic rod, a dredging motor is arranged at the bottom of the hydraulic rod, a spray head is installed at the bottom of the dredging motor, a rotary disc and a plurality of dredging pumps are arranged at the joint between the spray head and the dredging motor, and sludge sucking; the desilting pump is installed at the top of carousel, and the desilting pump is used for the silt suction in the carousel. The invention can efficiently clean the sludge on the petroleum well wall, and has better cleaning effect.

Description

Petroleum well wall exploitation impurity cleaning system

Technical Field

The invention belongs to the technical field of petroleum drilling equipment, and particularly relates to a petroleum well wall mining impurity cleaning system.

Background

Oil extraction is generally carried out by manually excavating an oil well, then extracting oil in the well, wherein the oil well generally needs to be subjected to a series of pretreatment on the oil well after drilling is completed, so as to ensure the safety and the efficiency of oil extraction, wherein the cleaning of sludge at the bottom of the well is included, and a special sludge cleaning device is required for cleaning the sludge at the bottom of the oil well.

However, the existing shaft bottom sludge cleaning device used after drilling of the petroleum well still has the defects when in use, the common device enters the shaft bottom from the lower part of the shaft wall, the well at the moment is just dug, so the firmness of the shaft wall is not high, the mud on the shaft wall is easily hung down to fall into the shaft bottom along with the descending of the device, thereby bringing unnecessary trouble, and the device is often required to be taken out once to clean the sludge collected in the device when the sludge is cleaned, thereby wasting time and labor.

Disclosure of Invention

In order to make up the defects of the prior art, the invention provides the petroleum well wall mining impurity cleaning system which is mainly suitable for cleaning sludge of the vertical petroleum well wall and mainly used for solving the problems that the well wall sludge is easy to fall off after the petroleum well is drilled through and the shaft bottom sludge cleaning efficiency is low.

The invention realizes the aim through the following technical scheme, and the petroleum well wall mining impurity cleaning system comprises a frame, a power device and a dredging motor, wherein a motor box is installed at the top of the frame, outer retractable pulleys are installed on two sides below the motor box, baffles are welded in the middle of the outer walls on two sides of the frame, a balance unit is arranged on the lower surface of each baffle and used for ensuring that the baffles are always vertical to a well hole, an inner channel is arranged in the frame, inner retractable pulleys are installed on the top of the inner channel, mud boxes are installed on two sides of the bottom of the inner channel, the power device is hung below the inner retractable pulleys, the power device slides up and down along a sliding rod, the top end of the sliding rod is fixed below the motor box, a hydraulic rod is installed in the power device, tamping arms are installed on the outer walls on two sides of the hydraulic rod and used for tamping the cleaned well wall, so that the strength of the well wall is enhanced, the mud is prevented from falling off, the connecting rod is arranged at the bottom of the hydraulic rod, the dredging motor is connected with the bottom of the connecting rod, the atomizing head is arranged at the bottom of the dredging motor and connected with the water pump, water mist sprayed out by the atomizing head can moisten mud blocks on a well wall, the adhesion of the mud blocks is improved, a rotary plate and a plurality of dredging pumps are arranged at the joint between the atomizing head and the dredging motor, the rotary plate is of a disc-shaped shell structure, a mud sucking hole and a brush are formed in the circumferential outer side wall of the rotary plate, the mud enters the rotary plate through the mud sucking hole under the action of the dredging pump, the brush is spirally arranged along the outer wall of the rotary plate, the brush is used for pushing the mud upwards when the rotary plate rotates, the atomizing head sprays the water mist and then is coated with the brush, the smoothness of the well wall can be improved, and the brush can scrape; the dredging pump is arranged at the top of the rotary table and used for sucking out sludge in the rotary table, the sludge cleaned by the hairbrush is adhered to the hairbrush, and the sludge adhered to the hairbrush enters the rotary table from the sludge sucking hole under the action of the dredging pump, so that the sludge is cleaned; the two baffles on the outer wall of the rack are both double-layered, so that the device is safer and more stable when being clamped on a wellhead; the power device is connected with the inward-closing pulley through two steel wire ropes, and the inward-closing pulley can stably receive and release the power device and the dredging motor; pulleys are arranged at the corners of four sides of the power device, and the power device can slide on the well wall at a constant speed through the pulleys when being arranged below the power device, so that soil hanging down on the well wall is avoided; the two sludge boxes at the bottom of the inner passage are connected with the outer retractable pulleys through a plurality of steel wire ropes, and the outer retractable pulleys can stably retract and release the sludge boxes; the power device, the desilting motor, the outer retractable pulley, the inner retractable pulley and the motor inside the motor box are electrically connected, and each component inside the device has an enough power source during operation.

Furthermore, the balancing unit comprises four spherical inflatable air bags, a regulator for regulating the air pressure of the inflatable air bags, a level meter for detecting the inclination angle of the baffle, an air compressor and a controller, the controller is electrically connected with the regulator and the level meter, and the inflatable air bags are fixed at four corners of the baffle; the inflatable air bag is placed on the base, the base is of a spherical crown shell structure, and four supporting legs which are supported outwards are arranged below the base. The inflatable air bag can be used independently and can be matched with the base for use, when the foundation is soft, the inflatable air bag is used independently, the contact area between the inflatable air bag and the ground is large, and the foundation is prevented from generating large deformation. The technical scheme can ensure that the baffle is vertical to the well bore, thereby avoiding scraping and rubbing the well wall which is well corrected during dredging.

Further, the cylinder body of hydraulic stem is provided with four, and along the cylinder body circumference evenly distributed of hydraulic stem, and four cylinder body integrated into one piece, can effectively reduce the volume of hydraulic stem, and four cylinder bodies communicate each other and guarantee the synchronous flexible of hydraulic stem for the atress is even between each hydraulic stem, the arm of ramming is the quarter ring structure, and the arm of ramming place circle diameter is less than the diameter of wellhole, the inside of ramming the arm is provided with the cavity, and the outer lane of the arm of ramming is global evenly to be equipped with a plurality of syringe needles, the syringe needle is linked together with the cavity, the cavity is linked together through pipeline and glue storage tank, is equipped with the rapid gel in the glue storage tank, and during the rapid gel was squeezed into earth through the press, when carrying out the wall of a well tamp, pours into the rapid gel into the soil of the wall of.

It is further, a plurality of the direction of syringe needle is the same, and the equal directional syringe needle direction of syringe needle motion of a plurality of syringe needles, the tip of syringe needle is sealed, and the lower circumference lateral wall of syringe needle is equipped with beats the gluey hole, can avoid taking out fast gel after the syringe needle and outwards flow out, fast gel is sprayed into in the earth by beating the gluey hole.

Furthermore, the dredging pump comprises a pipe body, a piston and a hydraulic cylinder, wherein the pipe body is vertically fixed at the top of the rotary table and is communicated with a cavity in the rotary table, a check valve for preventing backflow of sludge is arranged between the pipe body and the rotary table, the piston for pumping sludge is arranged in the pipe body and is connected with a piston rod of the hydraulic cylinder, and a check valve for exhausting is arranged in the center of the piston; the root of the pipe body is provided with a sludge discharge electromagnetic valve, and the sludge in the pipe body can be discharged under the pushing of the piston by opening the sludge discharge electromagnetic valve.

The invention has the beneficial effects that:

1. the invention firstly sprays water mist to the well wall to enhance the binding force of sludge on the well wall and avoid the mud blocks from falling off, and then the brush is used for coating the well wall, so that the brush can re-adhere the mud blocks to be fallen on the well wall on one hand and can scrape the protruded mud blocks on the other hand, thereby ensuring the smoothness of the well wall; furthermore, in order to improve the strength of the surface of the well wall, the hydraulic cylinder is adopted to drive the tamping arm to tamp the well wall, and meanwhile, the fast gel is injected on the shallow layer surface of the well wall to temporarily strengthen the strength of the surface of the well wall, so that the cleaning of sludge at the bottom of the well is facilitated.

2. The sludge box is adopted to transport the sludge back and forth, so that the trouble of stopping and cleaning is avoided, and meanwhile, the steel wire rope is adopted to cooperate with the pulley to transport the sludge back and forth, so that the internal space of the sludge box is saved.

3. The invention adopts the spherical inflatable air bag as the support, ensures that the baffle plate of the invention is always vertical to the well mouth, and avoids the situation that the well wall is scratched when sludge is cleaned.

Drawings

Fig. 1 is a schematic view of the internal structure of the present invention.

FIG. 2 is an enlarged view of FIG. 1 at A;

in the figure: the dredging device comprises a frame 1, an inner channel 2, a motor box 3, an outer retractable pulley 4, an inner retractable pulley 5, a power device 6, a dredging motor 7, a baffle 8, a silt box 9, a hydraulic rod 10, a pulley 11, a ramming arm 12, a connecting rod 13, a rotary table 14, a spray head 15, an inflatable air bag 21, a base 22, a sliding rod 31, a needle 121, a gluing hole 122 and a dredging pump 141.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in figures 1 and 2, the petroleum well wall mining impurity cleaning system comprises a frame 1, a power device 6 and a dredging motor 7, wherein a motor box 3 is installed at the top of the frame 1, outer retractable pulleys 4 are installed on two sides below the motor box 3, baffle plates 8 are welded in the middle of the outer walls on two sides of the frame 1, a balance unit is arranged on the lower surface of each baffle plate 8 and used for ensuring that each baffle plate 8 is always vertical to a well hole, an inner channel 2 is arranged in the frame 1, inner retractable pulleys 5 are installed on the top of the inner channel 2, the sludge boxes 9 are installed on two sides of the bottom of the inner channel 2, the power device 6 is hung below the inner retractable pulleys 5, the power device 6 slides up and down along a sliding rod 31, the top end of the sliding rod 31 is fixed below the motor box 3, a hydraulic rod 10 is installed in the power device 6, driving arms 12 are installed on the outer walls on two sides of the hydraulic rod 10, and the driving arms 12 are used for tamping the cleaned well wall, thereby strengthening the intensity of the well wall and avoiding the sludge from falling, a connecting rod 13 is arranged at the bottom of a hydraulic rod 10, the bottom of the connecting rod 13 is connected with a dredging motor 7, an atomizing head 15 is arranged at the bottom of the dredging motor 7, the atomizing head 15 is connected with a water pump, the water mist sprayed by the atomizing head 15 can moisten the sludge on the well wall, the adhesion of the sludge is improved, a rotary disc 14 and a plurality of dredging pumps 141 are arranged at the joint between the atomizing head 15 and the dredging motor 7, the rotary disc 14 is of a disc-shaped shell structure, sludge sucking holes and brushes are arranged on the circumferential outer side wall of the rotary disc 14, the sludge enters the rotary disc 14 from the sludge sucking holes under the action of the dredging pumps 141, the brushes are spirally arranged along the outer wall of the rotary disc 14, and are used for pushing the sludge upwards when the rotary disc 14 rotates, the atomizing head 15 sprays the water mist, and then the brushes are used for improving the smoothness of the well wall, and, thereby avoiding the dropping of the sludge; the dredging pump 141 is arranged at the top of the rotary disc 14, the dredging pump 141 is used for sucking out sludge in the rotary disc 14, the sludge cleaned by the brush is adhered to the brush, and under the action of the dredging pump 141, the sludge adhered to the brush enters the rotary disc 14 through the sludge sucking hole, so that the sludge is cleaned; the two baffles 8 on the outer wall of the rack 1 are both double-layered, so that the device is safer and more stable when being clamped on a wellhead; the power device 6 is connected with the inner retracting pulley 5 through two steel wire ropes, and the inner retracting pulley 5 can stably retract and release the power device 6 and the dredging motor 7; pulleys 11 are arranged at the corners of four sides of the power device 6, and the power device 6 can slide on the well wall at a constant speed through the pulleys 11 when being arranged below, so that soil hanging down on the well wall is avoided; two sludge boxes 9 at the bottom of the inner channel 2 are connected with the outer retractable pulleys 4 through a plurality of steel wire ropes, and the outer retractable pulleys 4 can stably retract and release the sludge boxes 9; the power device 6, the desilting motor 7, the outer retractable pulley 4 and the inner retractable pulley 5 are electrically connected with the motor inside the motor box 3, and each component inside the device has an enough power source during operation.

Further, the balancing unit comprises four spherical inflatable air bags 21, a regulator for regulating the air pressure of the inflatable air bags 21, a level gauge for detecting the inclination angle of the baffle plate 8, an air compressor and a controller, wherein the controller is electrically connected with the regulator and the level gauge, and the inflatable air bags 21 are fixed at four corners of the baffle plate 8; the inflatable air bag 21 is placed on a base 22, the base 22 is of a spherical-crown-shaped shell structure, and four supporting legs which are supported outwards are arranged below the base 22. The inflatable air bag 21 can be used independently or matched with a base, when the foundation is soft, the inflatable air bag 21 is used independently, the contact area of the inflatable air bag 21 and the ground is large, and large deformation of the foundation is avoided. The technical scheme can ensure that the baffle 8 is vertical to the well bore, thereby avoiding scraping and rubbing the well wall which is well corrected during dredging.

Further, the cylinder body of hydraulic stem 10 is provided with four, and along the cylinder body circumference evenly distributed of hydraulic stem 10, and four cylinder body integrated into one piece, can effectively reduce the volume of hydraulic stem 10, and four cylinder bodies communicate each other and guarantee the synchronous flexible of hydraulic stem 10 for the atress is even between each hydraulic stem 10, arm 12 of ramming is the quarter ring structure, and arm 12 of ramming is located the diameter that the circle diameter is less than the wellhole, the inside of arm 12 of ramming is provided with the cavity, and the global a plurality of syringe needles 121 that evenly are equipped with of outer lane of arm 12 of ramming, syringe needle 121 is linked together with the cavity, the cavity is linked together through pipeline and glue storage tank, is equipped with the fast gel in the glue storage tank, and the fast gel is in passing through the press wall of a well soil, when carrying out the ramming, in the soil of pouring into the fast gel into the wall of a well, realizes.

Furthermore, the needle 121 points in the same direction, and the needle 121 points in the moving direction, the end of the needle 121 is sealed, the glue applying hole 122 is formed in the lower circumferential side wall of the needle 121, so that the quick gel can be prevented from flowing out after the needle 121 is drawn out, and the quick gel is sprayed into the soil through the glue applying hole 122.

Further, the dredging pump 141 comprises a pipe body, a piston and a hydraulic cylinder, wherein the pipe body is vertically fixed at the top of the rotary table 14 and is communicated with a cavity inside the rotary table 14, a check valve for preventing backflow of sludge is arranged between the pipe body and the rotary table 14, the piston for pumping sludge is installed in the pipe body and is connected with a piston rod of the hydraulic cylinder, and a check valve for exhausting is arranged at the center of the piston; the root of the pipe body is provided with a sludge discharge electromagnetic valve, and the sludge in the pipe body can be discharged under the pushing of the piston by opening the sludge discharge electromagnetic valve.

When the gas-filled type gas-filled wellhead control device works, the controller is used for adjusting the air pressure in each gas-filled air bag to ensure that the baffle is vertical to the wellhead; the power device 6 and the lower part of the mechanism connected with the power device are put into an oil well through the inward-closing pulley 5; meanwhile, the sludge box 9 is synchronously arranged below through the external retractable pulley 4; when moving to the cleaning position, the sludge tank 9 stops moving, the power unit 6 continues below and the ramming arm 12 is positioned below the sludge tank 9; starting a water pump, wherein the water pump conveys water through a pipeline to form a spray head 15, and the spray head 15 sprays water mist on a well wall; meanwhile, the desilting motor 7 drives the rotary table 14 and the spray head 15 to rotate, the rotary table 14 and the spray head 15 move downwards while rotating, and a brush on the rotary table 14 brushes and cleans mud blocks on a well wall; meanwhile, the sludge pump 141 works to remove the sludge adhered to the brush; meanwhile, the hydraulic rod 10 is started to tamp the well wall by the tamping arm, and meanwhile, the quick-gelling agent is driven into the inner wall of the well wall by the press machine through the needle 121 on the surface of the tamping arm; the desilting motor 7 stops rotating, the desilting pump 141 is lifted to the inside of the desilting tank 9 under the action of the steel wire rope, and the desilting pump 141 pushes the sludge stored in the pipe body into the desilting tank 9 through a piston; the sludge box 9 is lifted to the ground by the external take-up and pay-off pulley 4 and the steel wire rope; the sludge in the sludge tank 9 is discharged at the ground.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides an oil well mine wall exploitation impurity clearance system, includes frame (1), power device (6) and desilting motor (7), its characterized in that: the motor box (3) is installed at the top of the rack (1), the outer retractable pulleys (4) are installed on two sides below the motor box (3), the baffle plates (8) are welded in the middle of the outer walls of two sides of the rack (1), the balance units are arranged on the lower surfaces of the baffle plates (8) and used for ensuring that the baffle plates (8) are always perpendicular to a well hole, an inner channel (2) is arranged inside the rack (1), the inner retractable pulleys (5) are installed on the top of the inner channel (2), silt boxes (9) are installed on two sides of the bottom of the inner channel (2), a power device (6) is hung below the inner retractable pulleys (5), the power device (6) slides up and down along a sliding rod (31), the top end of the sliding rod (31) is fixed below the motor box (3), a hydraulic rod (10) is installed inside the power device (6), and tamping arms (12) are installed on the outer walls of two sides of the hydraulic rod (10), the bottom of the hydraulic rod (10) is provided with a connecting rod (13), the bottom of the connecting rod (13) is connected with a dredging motor (7), the bottom of the dredging motor (7) is provided with an atomizing spray head (15), a rotary disc (14) and a plurality of dredging pumps (141) are arranged at the joint between the atomizing spray head (15) and the dredging motor (7), the rotary disc (14) is of a disc-shaped shell structure, the circumferential outer side wall of the rotary disc (14) is provided with a dredging hole and a brush, under the action of the dredging pumps (141), sludge enters the rotary disc (14) from the dredging hole, the brush is spirally arranged along the outer wall of the rotary disc (14), and when the rotary disc (14) rotates, the brush is used for pushing the sludge upwards; the dredging pump (141) is arranged at the top of the rotary disc (14), and the dredging pump (141) is used for sucking out sludge in the rotary disc (14); two baffles (8) on the outer wall of the rack (1) are both arranged into double layers; the power device (6) is connected with the inward-closing pulley (5) through two steel wire ropes; pulleys (11) are arranged at the corners of four sides of the power device (6); two sludge boxes (9) at the bottom of the inner channel (2) are connected with an external retractable pulley (4) through a steel wire rope; the power device (6), the dredging motor (7), the outer retractable pulley (4) and the inner retractable pulley (5) are electrically connected with the motor inside the motor box (3).

2. An oil well wall mining impurity cleaning system as claimed in claim 1, wherein: the balance unit comprises four spherical inflatable air bags (21), a regulator for regulating the air pressure of the inflatable air bags (21), a level meter for detecting the inclination angle of the baffle (8), an air compressor and a controller, wherein the controller is electrically connected with the regulator and the level meter, and the inflatable air bags (21) are fixed at four corners of the baffle (8); the inflatable air bag (21) is placed on the base (22), the base (22) is of a spherical-crown-shaped shell structure, and four supporting legs which are supported outwards are arranged below the base (22).

3. An oil well wall mining impurity cleaning system according to claim 1 or 2, characterized in that: the cylinder body of hydraulic stem (10) is provided with four, and along the cylinder body circumference evenly distributed of hydraulic stem (10), and four cylinder body integrated into one piece, and four cylinder bodies communicate each other and guarantee the synchronous flexible of hydraulic stem (10), arm (12) of ramming is the quarter ring structure, and arm (12) of ramming is located the diameter that the circle diameter is less than the wellhole, the inside of arm (12) of ramming is provided with the cavity, and the outer lane of arm (12) of ramming is global evenly to be equipped with a plurality of syringe needles (121), syringe needle (121) are linked together with the cavity, the cavity is linked together through pipeline and storage glue jar, is equipped with the fast gel in the storage glue jar, and the fast gel is squeezed into in the earth through the press.

4. A system for cleaning impurities from the wall of a petroleum well according to claim 3, wherein: the direction of the needles (121) is the same, the needles (121) all point to the moving direction of the needles (121), the end part of the needles (121) is sealed, glue applying holes (122) are formed in the side wall of the lower circumference of the needles (121), and quick gel is sprayed into soil through the glue applying holes (122).

5. An oil well wall mining impurity cleaning system as claimed in claim 1, wherein: the dredging pump (141) comprises a pipe body, a piston and a hydraulic cylinder, wherein the pipe body is vertically fixed at the top of the rotary table (14), the pipe body is communicated with a cavity in the rotary table (14), a check valve for preventing backflow of sludge is arranged between the pipe body and the rotary table (14), the piston for pumping the sludge is arranged in the pipe body, the piston is connected with a piston rod of the hydraulic cylinder, and a check valve for exhausting is arranged in the center of the piston; the root of the pipe body is provided with a sludge discharge electromagnetic valve, and the sludge in the pipe body can be discharged under the pushing of the piston by opening the sludge discharge electromagnetic valve.