CN112065341A - Single-well physical blockage removal and intelligent remote control measurement and fine adjustment layered water injection process for water injection well - Google Patents
Single-well physical blockage removal and intelligent remote control measurement and fine adjustment layered water injection process for water injection well Download PDFInfo
- Publication number
- CN112065341A CN112065341A CN202010965281.XA CN202010965281A CN112065341A CN 112065341 A CN112065341 A CN 112065341A CN 202010965281 A CN202010965281 A CN 202010965281A CN 112065341 A CN112065341 A CN 112065341A
- Authority
- CN
- China
- Prior art keywords
- water injection
- well
- layer
- switch
- circulating water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 266
- 238000002347 injection Methods 0.000 title claims abstract description 260
- 239000007924 injection Substances 0.000 title claims abstract description 260
- 238000000034 method Methods 0.000 title claims abstract description 59
- 230000008569 process Effects 0.000 title claims abstract description 30
- 238000005259 measurement Methods 0.000 title claims abstract description 16
- 239000010410 layer Substances 0.000 claims abstract description 76
- 230000000737 periodic effect Effects 0.000 claims abstract description 14
- 238000011084 recovery Methods 0.000 claims abstract description 7
- 238000005406 washing Methods 0.000 claims description 41
- 229910001220 stainless steel Inorganic materials 0.000 claims description 10
- 239000010935 stainless steel Substances 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 8
- 239000010802 sludge Substances 0.000 claims description 8
- 238000012360 testing method Methods 0.000 claims description 8
- 230000002572 peristaltic effect Effects 0.000 claims description 7
- 239000004568 cement Substances 0.000 claims description 6
- 238000009826 distribution Methods 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 4
- 238000005553 drilling Methods 0.000 claims description 4
- 230000003449 preventive effect Effects 0.000 claims description 4
- 238000005086 pumping Methods 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 239000002344 surface layer Substances 0.000 claims description 4
- 230000002457 bidirectional effect Effects 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000011229 interlayer Substances 0.000 abstract description 2
- 230000004044 response Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000005536 corrosion prevention Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 229940123973 Oxygen scavenger Drugs 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- 239000003899 bactericide agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/20—Displacing by water
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
The invention provides a single-well physical blockage removal and intelligent remote control fine measurement and adjustment layered water injection process for a water injection well, which belongs to the field of water injection wells. The method has the advantages of strong blockage removing strength, low cost, quick response, convenient construction and long effective period, and is a method with the prior environment-friendly and energy-saving blockage removing process technology; the automatic fine stratified water injection process can realize the stratified periodic water injection, solves the influence of the interlayer interference on the general periodic water injection, applies the periodic water injection and recovery ratio improving principle to each oil layer, and enlarges the residual oil utilization degree of the low-permeability zones which are scattered in the layers; the invention has high intelligent control degree, small operation intensity and high working efficiency.
Description
Technical Field
The invention belongs to the technical field of water injection wells, and particularly relates to a single-well physical blockage removal and intelligent remote control fine measurement and adjustment zonal water injection process for a water injection well.
Background
In the process of oil field development, water is injected into an oil reservoir through a special water injection well, so that the pressure of an oil layer is maintained or recovered, the oil reservoir has stronger driving force, and the exploitation rate and the recovery rate of the oil reservoir are improved. According to the structural form, area size, permeability, distribution relation of oil, gas and water and required development index, the distribution position of water injection well and the relative relation with production well are selected (called water injection mode). The well spacing of the water injection well is determined on the principle that most oil layers can be subjected to water injection, so that the oil well is fully subjected to the water injection effect, and the required oil extraction rate and the oil layer pressure are achieved. The water absorption capacity of the water injection well mainly depends on the permeability of the oil layer and the pressure of the water injection pump, and in order to enable the oil layer to absorb water normally, the pressure of the water injection pump is lower than the fracture pressure of the oil layer.
The downhole tubular column structure and downhole tools of water injection wells of the prior art follow a simple principle. Under most conditions (general water injection), the water injection well only needs to be provided with a set of pipe column and a packer, the packer is arranged at the 50m position of the top boundary of a perforation section, the pipe of the water injection well with specific corrosion prevention requirements meets special requirements, and when necessary, the oil casing annulus is protected by adopting a method of filling the corrosion prevention packing fluid. The liquid may be oil or water, and is generally treated with antiseptic or bactericide or added with oxygen scavenger. The downhole tubular column for separate layer water injection can be designed according to requirements.
However, the existing layered water injection process has the problems of easy blockage, poor intelligent remote control effect and incapability of layered water injection.
Therefore, the single-well physical blockage removal and intelligent remote control fine measurement and adjustment layered water injection process of the water injection well is very necessary.
Disclosure of Invention
In order to solve the technical problems, the invention provides a single-well physical blockage removal and intelligent remote control fine measurement and adjustment layered water injection process for a water injection well, which aims to solve the problems of easy blockage, poor intelligent remote control effect and incapability of layered water injection in the conventional layered water injection process, and specifically comprises the following steps:
the method comprises the following steps: the method comprises the following steps of determining the depth of a water injection well, drilling and digging the water injection well downwards on the surface layer of the ground according to the actual conditions of the oil field, measuring the depth of the water injection well, simultaneously making anti-collapse preventive measures, laying and constructing a concrete enclosure at the mouth of the water injection well, reinforcing the concrete enclosure through a stainless steel bar, and measuring the depth of the water injection well through a tape;
step two: measuring the cement depth return through a tape measure, preparing an oil pipe column, and arranging a sleeve at the wellhead of a water injection well for plugging removal and removal;
step three: the bottom layer is pumped and unblocked, and the specific operation method is carried out according to the following steps:
the first step is as follows: physical deblocking, namely connecting the oil pipe columns one by one and placing the oil pipe columns into a water injection well, and performing pumping deblocking work on the stratum through the peristaltic energy of the oil pipe columns;
the second step is that: the blockage removal and the back depth are realized, the blocked sludge or stones in the well can be discharged through the oil pipe column in a creeping manner, meanwhile, the sludge or stones can be pumped and discharged outside through the pipeline, the blockage can be pumped and removed through the blockage removal pump, and the continuous blockage removal work can be realized underground through the oil pipe column;
step four: the method comprises the following steps of:
the first step is as follows: the method comprises the following steps of performing underground intelligent water injection control operation, installing a circulating water injection switch 1, a circulating water injection switch 2 and a circulating water injection switch 3 according to the requirements of a water injection layer in the underground, and dividing the water injection layer into a water injection layer 1, a water injection layer 2 and a water injection layer 3;
the second step is that: controlling the water injection and well washing operation, wherein a well washing valve is arranged at the lower part of the circulating water injection switch device 3, a ball seat is arranged at the lower part of the well washing valve, the ball seat is arranged at the lower side in the water injection well through a bolt, a sieve tube and a plug are arranged at the lower part of the ball seat, and the well washing state is controlled through the well washing valve;
step five: the method for remotely allocating the shaft data comprises the following steps:
the first step is as follows: the remote module in the shaft is installed, the shaft is arranged in the water injection well, the remote data module is arranged in the shaft, the remote data module can be connected with an external control mobile phone or a tablet personal computer through a wireless signal, the action states of the circulating water injection switch device 1, the circulating water injection switch device 2, the circulating water injection switch device 3 and the well washing valve are controlled through an external controller, and remote data allocation operation can be performed through wireless control operation;
the second step is that: remote allocation test, namely performing data transmission control through an external control mobile phone or a tablet personal computer, performing control work through a controller, installing a waterproof CCD image sensor at the lower side in the shaft, detecting underground operation conditions through the waterproof CCD image sensor, performing data transmission operation, and performing blockage relieving and water injection operation after allocation test;
step six: the method comprises the following steps of automatic fine separated layer water injection operation, separated layer water injection control operation is carried out through a circulating water injection switch 1, a circulating water injection switch 2 and a circulating water injection switch 3, a separated layer periodic water injection function is achieved through an automatic fine separated layer water injection process, the periodic water injection enhanced recovery ratio principle is applied to each oil layer, the water injection efficiency is improved, the fine separated layer water injection operation is guaranteed, and meanwhile well washing operation is carried out through a well washing valve.
Preferably, in the fourth step, a stopper is arranged between the water injection layer 1 and the water injection layer 2 in the first step, and a shear wall is formed between the water injection layer 2 and the water injection layer 3.
Preferably, in step three, the tubing string in the first step is driven by an external oil injection pump to make it peristaltically move.
Preferably, in the fourth step, the sieve tube and the plug in the second step are connected by screw threads, the sieve tube is connected with the tubing string arranged in the last section, the plug is made of stainless steel, a rubber ring is arranged between the sieve tube and the plug, and the sieve tube is made of stainless steel mesh.
Preferably, in the fifth step, the remote data module in the first step is a WiFi module or an HC-08 bluetooth module, the external controller is an FX2N-48 PLC, the external controller and the remote data module are connected by a bidirectional wire, and the waterproof CCD image sensor in the second step is connected by a wire to the input end of the external controller.
Preferably, in the sixth step, the external controller can be used for controlling the circulating water injection switch 1, the circulating water injection switch 2 and the circulating water injection switch 3 to be automatically opened and closed at intervals during automatic fine stratified water injection, and the external controller is used for controlling the well washing valve to be opened and closed for well washing operation, wherein the circulating water injection switch 1, the circulating water injection switch 2, the circulating water injection switch 3 and the well washing valve are connected with output end leads of the external controller.
Preferably, in the sixth step, the specific operation mode of the automatic fine stratified water injection may be that the external controller is wirelessly controlled to act through an external control mobile phone or a tablet computer via a remote data module, the external controller controls the circulating water injection switch 1, the circulating water injection switch 2 and the circulating water injection switch 3 to be automatically opened and closed at intervals, and the water injection detection operation is performed through a waterproof CCD image sensor, so as to realize the automatic fine stratified water injection work.
Preferably, in the first step, the depth of the water injection well is 1870-1874m, and the concrete enclosure is an annular enclosure.
Preferably, in the second step, the cement depth is set to 1600-1700 m.
Compared with the prior art, the invention has the following beneficial effects: the single-well physical blockage removal and intelligent remote control fine measurement and adjustment layered water injection process of the water injection well is widely applied to the technical field of water injection wells. The invention uses the peristaltic energy of the tubing string to suck and unblock the stratum, so that continuous unblocking can be realized underground, and the unblocking validity period is the same as the pump detection period; the method has the advantages of strong blockage removing strength, low cost, quick response, convenient construction and long effective period, and is a method with the prior environment-friendly and energy-saving blockage removing process technology; the automatic fine stratified water injection process can realize the stratified periodic water injection, solves the influence of the interlayer interference on the general periodic water injection, applies the periodic water injection and recovery ratio improving principle to each oil layer, and enlarges the residual oil utilization degree of the low-permeability zones which are scattered in the layers; the invention has high intelligent control degree, small operation intensity and high working efficiency.
Drawings
FIG. 1 is a flow chart of a single-well physical blocking removal and intelligent remote control fine measurement and adjustment layered water injection process of a water injection well.
Fig. 2 is a bottom layer suction unblocking flow chart.
Fig. 3 is a flow chart of a downhole intelligent water distribution control operation.
FIG. 4 is a flow chart of a wellbore data remote blending operation.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
in the figure:
as shown in figure 1
The single-well physical blocking removal and intelligent remote control fine measurement and adjustment layered water injection process of the water injection well specifically comprises the following steps:
s101: the method comprises the following steps of determining the depth of a water injection well, drilling and digging the water injection well downwards on the surface layer of the ground according to the actual conditions of the oil field, measuring the depth of the water injection well, simultaneously making anti-collapse preventive measures, laying and constructing a concrete enclosure at the mouth of the water injection well, reinforcing the concrete enclosure through a stainless steel bar, and measuring the depth of the water injection well through a tape;
s102: measuring the cement depth return through a tape measure, preparing an oil pipe column, and arranging a sleeve at the wellhead of a water injection well for plugging removal and removal;
s103: the bottom layer is sucked and unblocked, as shown in the attached figure 2, and the specific operation method is carried out according to the following steps:
s301: physical deblocking, namely connecting the oil pipe columns one by one and placing the oil pipe columns into a water injection well, and performing pumping deblocking work on the stratum through the peristaltic energy of the oil pipe columns;
s302: the blockage removal and the back depth are realized, the blocked sludge or stones in the well can be discharged through the oil pipe column in a creeping manner, meanwhile, the sludge or stones can be pumped and discharged outside through the pipeline, the blockage can be pumped and removed through the blockage removal pump, and the continuous blockage removal work can be realized underground through the oil pipe column;
s104: the underground intelligent water distribution control operation is as shown in the attached figure 3, and the specific operation method comprises the following steps:
s401: the method comprises the following steps of performing underground intelligent water injection control operation, installing a circulating water injection switch 1, a circulating water injection switch 2 and a circulating water injection switch 3 according to the requirements of a water injection layer in the underground, and dividing the water injection layer into a water injection layer 1, a water injection layer 2 and a water injection layer 3;
s402: controlling the water injection and well washing operation, wherein a well washing valve is arranged at the lower part of the circulating water injection switch device 3, a ball seat is arranged at the lower part of the well washing valve, the ball seat is arranged at the lower side in the water injection well through a bolt, a sieve tube and a plug are arranged at the lower part of the ball seat, and the well washing state is controlled through the well washing valve;
s105: the wellbore data remote deployment operation, as shown in fig. 4, should be performed according to the following steps:
s501: the remote module in the shaft is installed, the shaft is arranged in the water injection well, the remote data module is arranged in the shaft, the remote data module can be connected with an external control mobile phone or a tablet personal computer through a wireless signal, the action states of the circulating water injection switch device 1, the circulating water injection switch device 2, the circulating water injection switch device 3 and the well washing valve are controlled through an external controller, and remote data allocation operation can be performed through wireless control operation;
s502: remote allocation test, namely performing data transmission control through an external control mobile phone or a tablet personal computer, performing control work through a controller, installing a waterproof CCD image sensor at the lower side in the shaft, detecting underground operation conditions through the waterproof CCD image sensor, performing data transmission operation, and performing blockage relieving and water injection operation after allocation test;
s106: the method comprises the following steps of automatic fine separated layer water injection operation, separated layer water injection control operation is carried out through a circulating water injection switch 1, a circulating water injection switch 2 and a circulating water injection switch 3, a separated layer periodic water injection function is achieved through an automatic fine separated layer water injection process, the periodic water injection enhanced recovery ratio principle is applied to each oil layer, the water injection efficiency is improved, the fine separated layer water injection operation is guaranteed, and meanwhile well washing operation is carried out through a well washing valve.
Preferably, in S104, a stopper is disposed between the water injection layer 1 and the water injection layer 2 in S401, and a shear wall is formed between the water injection layer 2 and the water injection layer 3.
Preferably, in S103, the tubing string in S301 is driven by an external oil injection pump to perform peristaltic action.
Preferably, in S104, the screen pipe and the plug in S402 are screwed, and the screen pipe is connected to the last section of tubing string, the plug is made of stainless steel, and a rubber ring is arranged between the screen pipe and the plug, and the screen pipe is made of stainless steel mesh.
Preferably, in S105, the remote data module in S501 is a WiFi module or an HC-08 bluetooth module, the external controller is an FX2N-48 PLC, the external controller and the remote data module are connected by a bidirectional wire, and the waterproof CCD image sensor in S502 is connected by a wire to the input terminal of the external controller.
Preferably, in S106, the external controller can control the cycle water injection switch 1, the cycle water injection switch 2 and the cycle water injection switch 3 to automatically open and close at intervals during the automatic fine stratified water injection, and the external controller can control the well washing valve to open and close the well washing operation, wherein the cycle water injection switch 1, the cycle water injection switch 2, the cycle water injection switch 3 and the well washing valve are all connected with an output end lead of the external controller.
Preferably, in S106, the specific operation mode of the automatic fine stratified water injection may be that the external controller is wirelessly controlled to operate through the remote data module by an external control mobile phone or a tablet computer, the external controller controls the circulating water injection switch 1, the circulating water injection switch 2 and the circulating water injection switch 3 to be automatically opened and closed at intervals, and the water injection detection operation is performed through the waterproof CCD image sensor, so as to realize the automatic fine stratified water injection work.
Preferably, in S101, the depth of the water injection well is 1870-1874m, and the concrete enclosure is an annular enclosure.
Preferably, in S102, the cement depth is set to 1600-1700 m.
Detailed description of the preferred embodiment
1. The method comprises the following steps of determining the depth of a water injection well, drilling and digging the water injection well downwards on the surface layer of the ground according to the actual conditions of the oil field, measuring the depth of the water injection well, simultaneously making anti-collapse preventive measures, laying and constructing a concrete enclosure at the mouth of the water injection well, reinforcing the concrete enclosure through a stainless steel bar, and measuring the depth of the water injection well through a tape;
2. measuring the cement depth return through a tape measure, preparing an oil pipe column, and arranging a sleeve at the wellhead of a water injection well for plugging removal and removal;
3. the bottom layer is pumped and unblocked, and the specific operation method is carried out according to the following steps:
the first step is as follows: physical deblocking, namely connecting the oil pipe columns one by one and placing the oil pipe columns into a water injection well, and performing pumping deblocking work on the stratum through the peristaltic energy of the oil pipe columns;
the second step is that: the blockage removal and the back depth are realized, the blocked sludge or stones in the well can be discharged through the oil pipe column in a creeping manner, meanwhile, the sludge or stones can be pumped and discharged outside through the pipeline, the blockage can be pumped and removed through the blockage removal pump, and the continuous blockage removal work can be realized underground through the oil pipe column;
4. the method comprises the following steps of:
the first step is as follows: the method comprises the following steps of performing underground intelligent water injection control operation, installing a circulating water injection switch 1, a circulating water injection switch 2 and a circulating water injection switch 3 according to the requirements of a water injection layer in the underground, and dividing the water injection layer into a water injection layer 1, a water injection layer 2 and a water injection layer 3;
the second step is that: controlling the water injection and well washing operation, wherein a well washing valve is arranged at the lower part of the circulating water injection switch device 3, a ball seat is arranged at the lower part of the well washing valve, the ball seat is arranged at the lower side in the water injection well through a bolt, a sieve tube and a plug are arranged at the lower part of the ball seat, and the well washing state is controlled through the well washing valve;
5. the method for remotely allocating the shaft data comprises the following steps:
the first step is as follows: the remote module in the shaft is installed, the shaft is arranged in the water injection well, the remote data module is arranged in the shaft, the remote data module can be connected with an external control mobile phone or a tablet personal computer through a wireless signal, the action states of the circulating water injection switch device 1, the circulating water injection switch device 2, the circulating water injection switch device 3 and the well washing valve are controlled through an external controller, and remote data allocation operation can be performed through wireless control operation;
the second step is that: remote allocation test, namely performing data transmission control through an external control mobile phone or a tablet personal computer, performing control work through a controller, installing a waterproof CCD image sensor at the lower side in the shaft, detecting underground operation conditions through the waterproof CCD image sensor, performing data transmission operation, and performing blockage relieving and water injection operation after allocation test;
6. the method comprises the following steps of automatic fine separated layer water injection operation, separated layer water injection control operation is carried out through a circulating water injection switch 1, a circulating water injection switch 2 and a circulating water injection switch 3, a separated layer periodic water injection function is achieved through an automatic fine separated layer water injection process, the periodic water injection enhanced recovery ratio principle is applied to each oil layer, the water injection efficiency is improved, the fine separated layer water injection operation is guaranteed, and meanwhile well washing operation is carried out through a well washing valve.
The technical solutions of the present invention or similar technical solutions designed by those skilled in the art based on the teachings of the technical solutions of the present invention are all within the scope of the present invention.
Claims (10)
1. The single-well physical blockage removal and intelligent remote control fine measurement and adjustment layered water injection process for the water injection well is characterized by comprising the following steps of:
the method comprises the following steps: the method comprises the following steps of determining the depth of a water injection well, drilling and digging the water injection well downwards on the surface layer of the ground according to the actual conditions of the oil field, measuring the depth of the water injection well, simultaneously making anti-collapse preventive measures, laying and constructing a concrete enclosure at the mouth of the water injection well, reinforcing the concrete enclosure through a stainless steel bar, and measuring the depth of the water injection well through a tape;
step two: measuring the cement depth return through a tape measure, preparing an oil pipe column, and arranging a sleeve at the wellhead of a water injection well for plugging removal and removal;
step three: the bottom layer is sucked and unblocked;
step four: controlling operation of underground intelligent water distribution;
step five: remote blending operation of shaft data;
step six: the method comprises the following steps of automatic fine separated layer water injection operation, separated layer water injection control operation is carried out through a circulating water injection switch 1, a circulating water injection switch 2 and a circulating water injection switch 3, a separated layer periodic water injection function is achieved through an automatic fine separated layer water injection process, the periodic water injection enhanced recovery ratio principle is applied to each oil layer, the water injection efficiency is improved, the fine separated layer water injection operation is guaranteed, and meanwhile well washing operation is carried out through a well washing valve.
2. The single-well physical blockage removal and intelligent remote control fine-adjustment layered water injection process for the water injection well according to claim 1, wherein in the third step, the bottom layer is pumped and blocked, and the specific operation method is carried out according to the following steps:
the first step is as follows: physical deblocking, namely connecting the oil pipe columns one by one and placing the oil pipe columns into a water injection well, and performing pumping deblocking work on the stratum through the peristaltic energy of the oil pipe columns;
the second step is that: the blockage removal and the back depth are realized, the blocked sludge or stones in the well can be discharged through the tubing string in a creeping manner, meanwhile, the sludge or stones can be pumped and discharged outside through the pipeline, the blockage is pumped and removed through the blockage removal pump, and the continuous blockage removal work can be realized underground through the tubing string.
3. The single-well physical blockage removal and intelligent remote control fine-adjustment layered water injection process of the water injection well according to claim 1, wherein in the fourth step, the underground intelligent water distribution control operation is performed according to the following steps:
the first step is as follows: the method comprises the following steps of performing underground intelligent water injection control operation, installing a circulating water injection switch 1, a circulating water injection switch 2 and a circulating water injection switch 3 according to the requirements of a water injection layer in the underground, and dividing the water injection layer into a water injection layer 1, a water injection layer 2 and a water injection layer 3;
the second step is that: and (3) controlling the operation of water injection and well washing, wherein a well washing valve is arranged at the lower part of the circulating water injection switch device 3, a ball seat is arranged at the lower part of the well washing valve, the ball seat is arranged at the lower side in the water injection well through a bolt, a sieve pipe and a plug are arranged at the lower part of the ball seat, and the well washing state is controlled through the well washing valve.
4. The single-well physical blockage removal and intelligent remote control fine measurement and adjustment layered water injection process of the water injection well according to claim 1, wherein in the step five, the specific operation method of the remote adjustment operation of the well bore data is performed according to the following steps:
the first step is as follows: the remote module in the shaft is installed, the shaft is arranged in the water injection well, the remote data module is arranged in the shaft, the remote data module can be connected with an external control mobile phone or a tablet personal computer through a wireless signal, the action states of the circulating water injection switch device 1, the circulating water injection switch device 2, the circulating water injection switch device 3 and the well washing valve are controlled through an external controller, and remote data allocation operation can be performed through wireless control operation;
the second step is that: remote allocation test, carry out data transmission control through external control cell-phone or panel computer, control work through the controller to at the inside downside installation waterproof CCD image sensor of pit shaft, detect the borehole operation condition through waterproof CCD image sensor, and can carry out data transmission operation, after the allocation test, can carry out the operation of deblocking water injection.
5. The single-well physical plug removal and intelligent remote control fine measurement and adjustment layered water injection process of the water injection well according to claim 3, characterized in that in the fourth step, a plug is arranged between the water injection layer 1 and the water injection layer 2 in the water injection layer in the first step, and a shear wall is formed between the water injection layer 2 and the water injection layer 3.
6. The single-well physical blockage removal and intelligent remote control fine measurement and adjustment layered water injection process of the water injection well according to claim 2, wherein in the third step, the tubing string in the first step is driven by an external oil injection pump to perform peristaltic action.
7. The single-well physical plug removal and intelligent remote control fine measurement and adjustment layered water injection process of the water injection well as defined in claim 3, wherein in the fourth step, the sieve tube and the plug in the second step are connected by screw threads, the sieve tube is connected with the last section of the tubing string, the plug is made of stainless steel, a rubber ring is arranged between the sieve tube and the plug, and the sieve tube is made of stainless steel mesh.
8. The single-well physical blockage relieving and intelligent remote control fine-adjustment layered water injection process of the water injection well according to claim 4, wherein in the fifth step, the remote data module in the first step adopts a WiFi module or an HC-08 Bluetooth module, the external controller adopts FX2N-48 PLC, the external controller and the remote data module are connected through a bidirectional wire, and the waterproof CCD image sensor in the second step is connected with an input end of the external controller through a wire.
9. The single-well physical blockage removal and intelligent remote control fine measurement and adjustment separated layer water injection process of the water injection well according to claim 1, wherein in the sixth step, the automatic fine separated layer water injection can be performed by controlling a circulating water injection switch 1, a circulating water injection switch 2 and a circulating water injection switch 3 to be automatically opened and closed at intervals through an external controller, and controlling a well washing valve to be opened and closed to perform well washing operation through the external controller, wherein the circulating water injection switch 1, the circulating water injection switch 2, the circulating water injection switch 3 and the well washing valve are connected with output end leads of the external controller.
10. The single-well physical blockage removal and intelligent remote control fine measurement and adjustment layered water injection process of the water injection well according to claim 1, wherein in the sixth step, the specific operation mode of the automatic fine layered water injection is that an external control mobile phone or a tablet personal computer is used for wirelessly controlling the action of an external controller through a remote data module, the external controller is used for controlling the automatic interval opening and closing of the circulating water injection switch 1, the circulating water injection switch 2 and the circulating water injection switch 3, and the water injection detection operation is performed through a waterproof CCD image sensor, so that the automatic fine layered water injection work is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010965281.XA CN112065341A (en) | 2020-09-15 | 2020-09-15 | Single-well physical blockage removal and intelligent remote control measurement and fine adjustment layered water injection process for water injection well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010965281.XA CN112065341A (en) | 2020-09-15 | 2020-09-15 | Single-well physical blockage removal and intelligent remote control measurement and fine adjustment layered water injection process for water injection well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112065341A true CN112065341A (en) | 2020-12-11 |
Family
ID=73695672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010965281.XA Pending CN112065341A (en) | 2020-09-15 | 2020-09-15 | Single-well physical blockage removal and intelligent remote control measurement and fine adjustment layered water injection process for water injection well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112065341A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114632368A (en) * | 2022-04-22 | 2022-06-17 | 中国地质调查局水文地质环境地质调查中心 | Blockage removing and resistance breaking method for multi-filter-layer circulating well in organic pollution site |
| CN116612388A (en) * | 2023-07-17 | 2023-08-18 | 新疆华屹能源发展有限公司 | Blocking removing method and system for oil production well |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201141296Y (en) * | 2007-11-09 | 2008-10-29 | 王宣 | Multifunctional negative pressure oil production plug-removing oil-adding device |
| CN102031945A (en) * | 2010-12-31 | 2011-04-27 | 谢晓峰 | Oil- water well blockage removal method and oil-water well blockage removal system |
| CN102704877A (en) * | 2012-06-11 | 2012-10-03 | 北京尊宏科技发展有限公司 | Composite anti-blockage device |
| CN103967459A (en) * | 2014-05-05 | 2014-08-06 | 中国石油集团渤海钻探工程有限公司 | Sewage reinjection well and water injection method of sewage reinjection well |
| CN104675388A (en) * | 2014-12-22 | 2015-06-03 | 中国石油天然气股份有限公司 | Underground wireless communication process method for layered water injection |
| CN106917584A (en) * | 2017-03-17 | 2017-07-04 | 新疆大学 | A kind of accurate marker drop shaft driving drilling orifice and the method and device of bottom hole position |
| CN206495669U (en) * | 2017-01-22 | 2017-09-15 | 中国石油化工股份有限公司 | Card pipe string for plugging shallow-layer sleeve leakage water injection well |
| CN207177856U (en) * | 2017-03-16 | 2018-04-03 | 中国石油天然气股份有限公司 | Ground oil sleeve separate injection wellhead |
| CN109025926A (en) * | 2018-09-06 | 2018-12-18 | 中国石油化工股份有限公司 | A kind of centralized control type intelligence separate layer water injection string and regulator control system |
| US20190242226A1 (en) * | 2018-02-07 | 2019-08-08 | Petrochina Company Limited | Layered water injection system and layered water injection method |
| CN110500071A (en) * | 2019-08-29 | 2019-11-26 | 中国石油天然气股份有限公司 | Intelligent alternate water injection device for cables arranged in continuous non-metal pipes and water injection method thereof |
| US20190376347A1 (en) * | 2017-06-27 | 2019-12-12 | Southwest Petroleum University | A downhole automatic connection device and method for oil pipe internal communication cable used for intelligent layered water injection |
| US20200115991A1 (en) * | 2018-10-15 | 2020-04-16 | Petrochina Company Limited | Stratified waterflooding apparatus |
-
2020
- 2020-09-15 CN CN202010965281.XA patent/CN112065341A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201141296Y (en) * | 2007-11-09 | 2008-10-29 | 王宣 | Multifunctional negative pressure oil production plug-removing oil-adding device |
| CN102031945A (en) * | 2010-12-31 | 2011-04-27 | 谢晓峰 | Oil- water well blockage removal method and oil-water well blockage removal system |
| CN102704877A (en) * | 2012-06-11 | 2012-10-03 | 北京尊宏科技发展有限公司 | Composite anti-blockage device |
| CN103967459A (en) * | 2014-05-05 | 2014-08-06 | 中国石油集团渤海钻探工程有限公司 | Sewage reinjection well and water injection method of sewage reinjection well |
| CN104675388A (en) * | 2014-12-22 | 2015-06-03 | 中国石油天然气股份有限公司 | Underground wireless communication process method for layered water injection |
| CN206495669U (en) * | 2017-01-22 | 2017-09-15 | 中国石油化工股份有限公司 | Card pipe string for plugging shallow-layer sleeve leakage water injection well |
| CN207177856U (en) * | 2017-03-16 | 2018-04-03 | 中国石油天然气股份有限公司 | Ground oil sleeve separate injection wellhead |
| CN106917584A (en) * | 2017-03-17 | 2017-07-04 | 新疆大学 | A kind of accurate marker drop shaft driving drilling orifice and the method and device of bottom hole position |
| US20190376347A1 (en) * | 2017-06-27 | 2019-12-12 | Southwest Petroleum University | A downhole automatic connection device and method for oil pipe internal communication cable used for intelligent layered water injection |
| US20190242226A1 (en) * | 2018-02-07 | 2019-08-08 | Petrochina Company Limited | Layered water injection system and layered water injection method |
| CN109025926A (en) * | 2018-09-06 | 2018-12-18 | 中国石油化工股份有限公司 | A kind of centralized control type intelligence separate layer water injection string and regulator control system |
| US20200115991A1 (en) * | 2018-10-15 | 2020-04-16 | Petrochina Company Limited | Stratified waterflooding apparatus |
| CN110500071A (en) * | 2019-08-29 | 2019-11-26 | 中国石油天然气股份有限公司 | Intelligent alternate water injection device for cables arranged in continuous non-metal pipes and water injection method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114632368A (en) * | 2022-04-22 | 2022-06-17 | 中国地质调查局水文地质环境地质调查中心 | Blockage removing and resistance breaking method for multi-filter-layer circulating well in organic pollution site |
| CN114632368B (en) * | 2022-04-22 | 2024-04-26 | 中国地质调查局水文地质环境地质调查中心 | Method for removing blockage and breaking blockage of multi-filter-layer circulating well in organic pollution site |
| CN116612388A (en) * | 2023-07-17 | 2023-08-18 | 新疆华屹能源发展有限公司 | Blocking removing method and system for oil production well |
| CN116612388B (en) * | 2023-07-17 | 2023-09-19 | 新疆华屹能源发展有限公司 | Blocking removing method and system for oil production well |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102787833B (en) | Hydraulic fracturing surging method for bedrock well and system device thereof | |
| CN110608005B (en) | Gas lift reverse circulation drilling system and automatic control method | |
| CN102242621B (en) | Negative pressure de-plugging and oil extraction process and device | |
| CN109653707B (en) | Method for dewatering and increasing oil by filling packing body particles in oil and gas well of fractured oil and gas reservoir | |
| CN112065341A (en) | Single-well physical blockage removal and intelligent remote control measurement and fine adjustment layered water injection process for water injection well | |
| CN205063929U (en) | Colliery is sealed in pit and is pressed integration segmentation hydraulic fracturing device | |
| CN101775977B (en) | Dual-tube injection well safety production string | |
| CN104405362A (en) | Automatic bottom hole pressure control device for under-balanced drilling and using method of device | |
| CN201372779Y (en) | Oil jacket communicating vessel | |
| CN201738822U (en) | String for upper horizontal well cementation and lower screen pipe gravel pack completion | |
| CN105178908A (en) | Chemical grouting packing device and method for downhole stratum plugging | |
| RU2354810C1 (en) | Method for simultaneous-separate operation of pressure well | |
| CN101519954A (en) | Multifunctional combination operation process and device for injection pump unit | |
| RU2405914C1 (en) | Method and device for well flushing | |
| CN210768668U (en) | Gas-lift reverse circulation drilling system | |
| RU2638672C1 (en) | Method for drilling out downhole equipment with use of flexible pipe | |
| CN103790529A (en) | Coalbed methane drainage extraction and backwashing device and method | |
| CN202215193U (en) | Water-swelling self-sealing type packer | |
| CN201003397Y (en) | Controllable throttling controller | |
| RU2349739C1 (en) | Facility for simultaneous-separate pumping water into two formations | |
| CN114856495B (en) | Underground device for testing gas water production profile of coal bed gas combined well | |
| CN205089297U (en) | Multilayer becomes hole sand screen | |
| RU2459072C1 (en) | Method of hydraulic fracturing of low-permeable formation of injection well | |
| CN2846741Y (en) | Sand proof tubular pole for water injection well | |
| CN205840841U (en) | A kind of single-direction balls valve type cement stripper tube piecing devices |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |