CN114482943B - Layered sand control well layered polymer injection tubular column and use method thereof - Google Patents
Layered sand control well layered polymer injection tubular column and use method thereof Download PDFInfo
- Publication number
- CN114482943B CN114482943B CN202011167811.2A CN202011167811A CN114482943B CN 114482943 B CN114482943 B CN 114482943B CN 202011167811 A CN202011167811 A CN 202011167811A CN 114482943 B CN114482943 B CN 114482943B
- Authority
- CN
- China
- Prior art keywords
- sleeve
- joint
- layered
- injection
- plug
- 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.)
- Active
Links
- 238000002347 injection Methods 0.000 title claims abstract description 113
- 239000007924 injection Substances 0.000 title claims abstract description 113
- 229920000642 polymer Polymers 0.000 title claims abstract description 83
- 239000004576 sand Substances 0.000 title claims abstract description 77
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000007789 sealing Methods 0.000 claims abstract description 56
- 238000001914 filtration Methods 0.000 claims abstract description 16
- 210000002445 nipple Anatomy 0.000 claims description 26
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 11
- -1 polytetrafluoroethylene Chemical group 0.000 claims description 10
- 229920001343 polytetrafluoroethylene Chemical group 0.000 claims description 10
- 239000004810 polytetrafluoroethylene Chemical group 0.000 claims description 10
- 238000012360 testing method Methods 0.000 claims description 10
- 238000003825 pressing Methods 0.000 claims description 8
- 230000000087 stabilizing effect Effects 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 238000010008 shearing Methods 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 230000001012 protector Effects 0.000 claims description 3
- 239000010410 layer Substances 0.000 abstract description 22
- 230000002265 prevention Effects 0.000 abstract description 14
- 239000007788 liquid Substances 0.000 abstract description 11
- 238000013461 design Methods 0.000 abstract description 3
- 239000011229 interlayer Substances 0.000 abstract description 2
- 238000002156 mixing Methods 0.000 abstract description 2
- 239000002356 single layer Substances 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 239000003129 oil well Substances 0.000 description 7
- 239000003446 ligand Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000011010 flushing procedure Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000010354 integration Effects 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 239000008476 aike Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- E21B43/14—Obtaining from a multiple-zone well
-
- 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/066—Valve arrangements for boreholes or wells in wells electrically actuated
-
- 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
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/06—Valve arrangements for boreholes or wells in wells
- E21B34/08—Valve arrangements for boreholes or wells in wells responsive to flow or pressure of the fluid obtained
-
- 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
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
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)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention relates to an underground layered polymer injection device and method, in particular to a layered sand control well layered polymer injection tubular column and a use method. The device comprises a plug, an electrohydraulic integrated polymer distributor, a traversing type sealing plug, a hydraulic control pipeline, an armored cable, a sand prevention sleeve, a polymer injection oil pipe, a positioner, a sand prevention layered packer, a sand filtering pipe and a plurality of pressure sensors. The invention adopts a single-pipe layered injection mode, all matched tools adopt a small-diameter design, a single-layer polymer distributor adopts a liquid-electricity mixing mode to control the opening degree, an interlayer packer adopts a multi-pipe crossing mode, an electric control adjusting liquid path is adopted to provide hydraulic pressure for an underground tool, a circuit board is used for controlling the forward and reverse rotation of a direct current stepping motor, a liquid flow path is replaced, and finally the flow control of each oil-water layer is realized through a ground liquid control pipeline and a signal cable.
Description
Technical Field
The invention relates to an underground layered polymer injection device and method, in particular to a layered sand control well layered polymer injection tubular column and a use method.
Background
Polymer injection oil recovery is a method in tertiary oil recovery technology, so that the production efficiency of an old oil well of an oil field is greatly improved, double-pipe or multi-pipe injection technology appears at present, namely double-pipe or multi-pipe injection technology is adopted in an oil well casing, sand prevention of an oil well is mainly carried out by gravel packing and mechanical hanging filtration at present, the inner diameter of the 7-in casing sand prevention is smaller than 100mm, particularly gravel packing sand prevention, the inner diameter of a reserved well after packing is smaller than 100mm, the inner diameter of each inner pipe is smaller as the inner pipes are filled in the oil well sand prevention casing is limited by the inner diameter of the oil well sand prevention casing, the injection efficiency is lowered, polymer shearing is more serious, benefit development is better realized, and the small-diameter design of a layered injection string is needed.
Meanwhile, the internal diameter of the casing is limited by the layered sand prevention, and at present, no electromagnetic valve with relevant size exists, so that certain difficulty is brought to the realization of intelligent layered injection in a 7-in casing well.
The Chinese patent application CN110984934A discloses a use method of a liquid control measuring and adjusting integrated device for a polymer injection well, which is characterized in that a plurality of polymer injection pipes are connected under a hanger of a well mouth, a traversing packer is connected on the polymer injection pipes, a fixing cutting ferrule is arranged under the traversing packer, and a polymer injection device and a tester are connected under the fixing cutting ferrule; the next layer is connected with a next group of traversing packer, a fixed clamping sleeve, a polymer injection device and a tester through a polymer injection pipe by connecting the polymer injection pipe under the polymer injection device; a manual well bottom up to the bottom; and installing one or more hydraulic control pipelines and injection test wires in an annulus between the oil well casing and the injection pipe. The device realizes the start of the polymer injection device at different layers by arranging the independent hydraulic control pipelines, avoids the reduction of the polymer injection efficiency caused by putting a plurality of polymer injection pipes into the oil well casing, but the method does not consider the following aspects: (1) When 2 layers of injection polymerization are required to be controlled, 4 pipelines (2 hydraulic control pipelines and 2 test pipelines) in the well are already achieved, and the construction is quite complex; (2) The pipeline and the tool joint are more, the underground environment is complex, uncontrollable factors are increased, and the success rate of the hydraulic control layered production pipe column is low.
The Chinese patent application CN109356899A discloses an underground hydraulic system with three pipelines for controlling six-layer sliding sleeves for underground decoding control, which comprises an underground hydraulic system 1, a hydraulic system 2, a hydraulic system 3, a hydraulic system 4 and a hydraulic system 5, wherein the hydraulic system 6 is connected with an injection system on the ground through three pipelines 1, 2 and 3, the ground secondary pressure control system is also connected with the injection system through the pipeline 1, 2 and 3, the pipeline output pressure is controlled by adjusting the secondary pressure control system, and the independent displacement of the sliding sleeves is realized by adjusting the working procedure of the hydraulic system. However, the three hydraulic control pipelines are still complicated to operate in practical application, and the unique six-layer limit of the system is added, so that the three hydraulic control pipelines are not suitable for application under the condition of not six layers, and the application flexibility is limited.
Chinese patent application CN104563961a discloses a miniature electric valve for hydraulic control in pit, and it includes valve body and valve rod, power input device is connected to the one end of valve rod, is provided with a plurality of sealing members along axial interval between valve rod and valve hole inner wall, becomes a plurality of annular spaces with the interval of valve rod and valve body, is provided with two at least radial holes along axial direction interval in one side of valve body, and each radial hole corresponds and is linked together with an annular space, is provided with an annular concave portion at least along axial direction on the valve rod, annular concave portion enables two adjacent annular spaces to be linked together. The electric valve has simple structure, small volume and high pressure resistance, and can be used in the working environment of underground ultrahigh pressure and narrow space; the direction control of the switch sliding sleeve is realized when the oil gas well sectioning measure is constructed, the underground liquid pressure is used as the reversing power, the influence of underground high pressure and narrow space is overcome, and the sectioning measure operation time can be greatly shortened. However, since the liquid outlet is in the radial direction, the well is easy to collide and damage, and the electric control force is small, the valve rod is extremely easy to push and not move in the later development period, and the valve rod is difficult to apply and popularize in the complex underground field.
Therefore, at present, a device and a process suitable for single-pipe injection of a layered sand control well are still required to be independently designed, the multi-layer injection process in the sand control pipe column can be realized, the inner diameter of the injection pipe does not need to be reduced, and the injection efficiency is not reduced.
Disclosure of Invention
The invention mainly aims to provide a layered sand control well layered polymer injection tubular column and a use method thereof; the single-pipe layered injection mode is adopted, all matched tools are designed in a small-diameter mode, the single-layer polymer distribution device is used for controlling the opening degree in a liquid-electricity mixing mode, the interlayer packer is used for multi-pipe crossing mode, an electric control adjusting liquid path is adopted for providing hydraulic pressure for the downhole tool, a circuit board is used for controlling the direct-current stepping motor to positively and negatively rotate, a liquid flow path is replaced, and finally the flow control of each oil-water layer is realized through a ground hydraulic control pipeline and a signal cable.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
The invention provides a layered sand control well layered injection string, which comprises a plug, an electrohydraulic integrated polymer, a traversing type sealing plug, a hydraulic control pipeline, an armored cable, a sand control sleeve, an injection oil pipe, a positioner, a sand control layered packer and a sand filtering pipe; the sand control casing, sand control layered packer and sand filtering pipe constitute the sand control tubular column of outer wall, plug, electrohydraulic integration join in marriage gather ware, traversing sealed plug, hydraulically controlled pipeline, armoured cable, annotate and gather tubular column, positioner and constitute inside notes gather tubular column, two kinds of tubular columns concentric setting, sand control layered packer seal every oil reservoir, sand filtering pipe aim at every oil reservoir, sand control casing connect sand control layered packer and sand filtering pipe, the plug arrange the bottommost of annotating to gather tubular column in, traversing sealed plug be used for sealing and separate the oil reservoir of annotating to gather tubular column, two liang pass through and place one between the sealed plug electrohydraulic integration join in marriage gather ware, the positioner place and gather tubular column tool string's top in annotating, hydraulically controlled pipeline, armoured cable connect in each level electrohydraulic integration join in marriage gather ware through the mode of establishing ties, finally connect to the hydraulic electric control cabinet on ground.
Further, the layered sand control well layered injection string also comprises a pressure sensor; the pressure sensor is connected with the electrohydraulic integrated matching device and is connected with the hydraulic control pipeline and used for testing the pressure value of the joint of the electrohydraulic integrated matching device and the hydraulic control pipeline; a part of pressure sensor is arranged at the outer end of the electrohydraulic integrated matching and gathering device and is fixed by a protection device and used for testing the pressure value of the outer end of the electrohydraulic integrated matching and gathering device; the armoured cable is connected with all pressure sensors.
Further, the electrohydraulic integrated matching and gathering device comprises a lower joint, a spring seat, a lower spring, a bearing, a track fixing sleeve, a track pin, a track sleeve, a lower connecting sleeve, an intermediate connecting sleeve, a polymer injection outer hole, a sliding sleeve, an upper connecting sleeve, an inner connecting rod, a gasket, an upper spring, an outer sleeve, a piston, an upper joint, a baffle ring, a 1 st variable center sleeve, a 1 st quick joint, a 1 st connecting nipple, a large plug, a supporting sleeve, a small plug, a mandrel, a body, a pin, a motor, a control circuit board, a cable joint, a2 nd connecting nipple, a2 nd quick joint and a2 nd variable center sleeve; a step is arranged in the lower joint, the spring seat is arranged on the step, a lower spring is arranged on the spring seat, and a bearing is arranged at the upper end of the lower spring; the lower connecting sleeve is in threaded connection with the lower joint; the track pin movably connects the track fixing sleeve and the track sleeve, and is arranged at the upper end of the bearing after being assembled; the middle connecting sleeve is in threaded connection with the lower connecting sleeve, the middle connecting sleeve is provided with an injection outer hole, and the upper connecting sleeve is in threaded connection with the middle connecting sleeve and the outer sleeve respectively; the sliding sleeve is in threaded connection with the inner connecting rod, a step is arranged outside the inner connecting rod, and a gasket, an upper spring and a gasket are sequentially arranged on the upper part of the step from bottom to top; the piston is in threaded connection with the internal connecting rod, and the baffle ring is in threaded connection with the inner part of the upper end of the piston; placing the assembled sliding sleeve, the assembled connecting rod, the assembled gasket, the assembled spring, the assembled piston and the assembled baffle ring in the sleeve, and then connecting the assembled sliding sleeve, the assembled connecting rod, the assembled gasket, the assembled spring, the assembled piston and the assembled baffle ring with the sleeve through upper joints in the sleeve; the 1 st variable center sleeve is in threaded connection with the upper joint, the 1 st quick joint is firstly sleeved on the outer wall of the 1 st connecting nipple, then the 1 st connecting nipple is in threaded connection with the body, and then the 1 st quick joint is in quick threaded connection with the 1 st variable center sleeve; the 2 nd connecting nipple is in threaded connection with the body, the 2 nd quick connector is firstly sleeved on the outer wall of the 2 nd connecting nipple, then the 2 nd connecting nipple is in threaded connection with the body, and then the 2 nd quick connector is in quick threaded connection with the 2 nd variable center sleeve;
One side of the body is drilled with an inner reducing through hole, and a large plug, a supporting sleeve, a small plug, a sealing system and a mandrel are sequentially arranged in the through hole from bottom to top; the sealing system is placed in a sealing inner hole of the body, the supporting sleeve is placed at the lower end of the sealing system, the large plug is in threaded and rubber ring sealing connection with the body, the small plug is installed at the lower end of the mandrel, the small plug is in threaded and rubber ring sealing connection with the mandrel, the motor is placed at the upper end of the mandrel and is connected with the motor through a pin, and the circuit control board is placed at the upper end of the motor and is connected with the motor through a cable connector sealing connection after being installed.
Further, the sliding sleeve is in sealing contact with the inner surface and the outer surface of the middle connecting sleeve;
Furthermore, a plurality of injection holes with different diameters are axially arranged on the sliding sleeve.
Further, the lower joint and the lower connecting sleeve, the middle connecting sleeve and the lower connecting sleeve, the upper connecting sleeve and the middle connecting sleeve, the outer sleeve and the upper connecting sleeve, the upper joint and the outer sleeve, the 1 st variable center sleeve and the upper joint, the 1 st connecting nipple and the body, the 1 st quick joint and the 1 st variable center sleeve, the 2 nd connecting nipple and the body, the 2 nd quick joint and the 2 nd variable center sleeve, and the large plug and the body are sealed by rubber rings.
Furthermore, a sealing system is arranged between the inner connecting rod and the middle connecting sleeve, between the piston and the upper joint and between the piston and the upper joint, and the body part is composed of a copper ring, polytetrafluoroethylene and a rubber ring;
Further, the diameter of the rubber ring is 5.3mm, and a fit clearance of 1.5-2mm is reserved in the axial direction of the sealing part of the sealing system;
further, the copper ring is made of red copper; the polytetrafluoroethylene is graphite doped polytetrafluoroethylene.
Furthermore, the threads at the joints of the lower joint and the lower connecting sleeve, the middle connecting sleeve and the lower connecting sleeve, the upper connecting sleeve and the middle connecting sleeve, the outer sleeve and the upper connecting sleeve and the upper joint and the outer sleeve adopt the low-tooth Aike female trapezoidal threads.
Further, a hydraulic control joint is arranged on the upper joint; and the injection outer holes and other injection channels are processed in reverse circular arcs, so that the shearing degree of the polymer is reduced.
Still further, be equipped with reserved pipeline passageway, toper plug hole, balanced passageway, beat and press the joint, beat and press passageway, pressure release passageway hole, pressure release + reserved pipeline passageway on the body, all connect, passageway parallel arrangement to be equipped with suitable toper seal plug in toper plug hole department, be equipped with suitable hydraulically controlled pipeline joint in the joint department of beating.
The invention also provides a use method of the layered sand control well layered injection string, which comprises the following steps: sequentially placing an outer wall sand control pipe column and an inner wall layered polymer injection pipe column, and connecting a plurality of layered polymer injection pipe columns in series according to the polymer injection level; when each stage of electrohydraulic integrated polymer distributor is connected, the hydraulic control pipeline tee joint and the armored cable tee joint are respectively connected to the pressurizing connector and the cable connector of the electrohydraulic integrated polymer distributor, the hydraulic control pipeline and the armored cable of the main channel are all provided with the pipeline 1 channel and the pressure release and reserved pipeline channel, then the hydraulic control pipeline is connected with the pressurizing connector and the hydraulic control connector, whether the conical plug hole is matched with a corresponding plug or not is checked on site, the hydraulic control pipeline and the armored cable are protected on the outer wall of an oil pipe through corresponding protectors, and finally the hydraulic control pipeline and the armored cable are connected to a ground control center.
Further, when daily injection is carried out, a command is sent through a ground control center and is used for supplying power to a motor to push a mandrel to move, when the electrohydraulic integrated polymer distributor of a control layer needs to be pressurized, the mandrel is pushed to a determined pressurizing position, a pressurizing joint is kept smooth, then pressurizing control is carried out through a hydraulic control pipeline according to the size of the injection allocation, when a certain pressure is reached, an upper spring and a lower spring are compressed, the pressure is continuously increased, a track sleeve moves on a track fixing sleeve, so that a sliding sleeve is driven to move up and down, and because multi-stage injection holes with different sizes are arranged on the sliding sleeve, the control of flow is realized, when the required flow is regulated, the motor is controlled, the mandrel is pushed to a determined pressure stabilizing position, and thus the pressurizing pressure relief of other layers cannot influence the pressure condition of the electrohydraulic integrated polymer distributor of the layer; if the electrohydraulic integrated polymer distributor of the layer needs to be closed, the motor is controlled to push the mandrel to the determined pressure relief position, so that the hydraulic control pressure can be rapidly released and rapidly closed;
further, when the hydraulic control pressure change track is regulated, the pressure sensor is used for testing the pressure, and the pressure can be successfully changed only when the required pressure is reached, so that the failure probability of the change track is reduced.
Compared with the prior art, the invention has the following advantages:
The electrohydraulic integrated polymer matching device matched with the polymer injection pipe column has small diameter design, and can meet the requirement of layered polymer injection in a layered sand control well; by adopting a liquid-electricity integrated control mode, the problem of immobility in later adjustment of insufficient power caused by pure electric control can be solved, and the problem of more liquid control pipelines caused by pure liquid control can be solved.
The injection pipe column realizes real-time control of multiple layers by one cable and one pipeline, and simultaneously, each layer is provided with multiple openings to realize adjustment of multiple flow rates; meanwhile, the self-checking sealing of the sealing plug can be realized, and the separation is ensured.
Different from the conventional polymer injection device, the electro-hydraulic integrated polymer injection device can form a larger flow passage when being positioned at a pressure release position, and can meet the requirement of large-displacement back flushing.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention.
FIG. 1 is a schematic diagram of a layered sand control well layered injection string according to an embodiment of the present invention;
FIG. 2 is a schematic view of an electrohydraulic integrated polymer distributor according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view taken along the direction A-A of an electrohydraulic integrated ligand-collector body according to an embodiment of the present invention;
FIG. 4 is a B-B cross-sectional view of an electrohydraulic integrated ligand-collector body according to an embodiment of the invention;
FIG. 5 is a C-C cross-sectional view of an electrohydraulic integrated ligand-polymer body according to an embodiment of the invention;
FIG. 6 is a schematic diagram illustrating a hydraulic control principle according to an embodiment of the present invention;
FIG. 7 is a diagram illustrating three different positions of a mandrel according to an embodiment of the present invention;
Fig. 8 is a schematic view of a track-fixing sleeve according to an embodiment of the present invention.
In the drawing the view of the figure, the hydraulic well packer comprises a plug, an electrohydraulic integrated gathering device, a sand filtering pipe, a traversing sealing plug, a sand prevention layered packer, a sand prevention sleeve, a polymer injection oil pipe, a locator, an armored cable, a hydraulic control pipeline, a lower joint, a spring seat and a lower joint, wherein the plug is arranged in the plug, the electrohydraulic integrated gathering device is arranged in the plug, the sand filtering pipe is arranged in the plug, the traversing sealing plug is arranged in the plug, the sand prevention layered packer is arranged in the plug, the sand prevention sleeve is arranged in the plug, the pipe is arranged in the plug, the locator is arranged in the plug, the plug is arranged in the 203, lower spring, 204, bearing, 205, track fixing sleeve, 206, track pin, 207, track sleeve, 208, lower connecting sleeve, 209, 1 st rubber ring, 210, intermediate connecting sleeve, 211, injection outer hole, 212, sliding sleeve, 213, upper connecting sleeve, 214, copper ring, 215, polytetrafluoroethylene 216.2 rubber rings, 217 inner connecting rods, 218 gaskets, 219 upper springs, 220 outer jackets, 221 pistons, 222 upper joints, 223 gear rings, 224 hydraulic joints, 225.1 variable center sleeves, 226.1 quick joints, 227.1 connecting pup joints, 228.large plugs, 229 supporting sleeves, 230.small plugs, 231 sealing systems, 232, mandrels, 233, bodies, 234 pins, 235 motors, 236 control circuit boards, 237 cable joints, 238.2 connecting pup joints, 239.2 quick joints, 240.2 variable center sleeves. 2331. Reserving pipeline 1 channels, 2332, tapered plug holes, 2332a, tapered plug holes, 2332b, tapered plug holes, 2332c, tapered plug holes, 2332d, tapered plug holes, 2333 and balance channels; 2334. the pressure connector is 2334a, the pressure connector is 2335, the pressure channel is 2336, the pressure release channel hole is 2337, and the pipeline channel is reserved.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present invention. As used herein, the singular forms also are intended to include the plural forms unless the context clearly indicates otherwise, and furthermore, it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, and/or combinations thereof.
Example 1
As shown in figure 1, the single-pipe layered injection string of the layered sand control well comprises a plug 1, an electrohydraulic integrated polymer matching device 2, a traversing type sealing plug 4, a hydraulic control pipeline 10, an armored cable 9, a sand control sleeve 6, an injection oil pipe 7, a positioner 8, a sand control layered packer 5 and a sand filtering pipe 3, wherein the sand control sleeve 6, the sand control layered packer 5 and the sand filtering pipe 3 form a sand control string on the outer wall, the plug 1, the electrohydraulic integrated polymer matching device 2, the traversing type sealing plug 4, the hydraulic control pipeline 10, the armored cable 9, the injection oil pipe 7 and the positioner 8 form an internal injection string, the two kinds of tubular columns are arranged concentrically, the sand control layered packer 5 seals each oil layer, the sand filtering pipe 3 is aligned with each oil layer, the sand control sleeve 6 is connected with the sand control layered packer 5 and the sand filtering pipe 3, the plug 1 is arranged at the bottommost end of the injection tubular column, the traversing type sealing plug 4 is used for sealing the oil layer of the injection tubular column, an electrohydraulic integrated polymer distributor is arranged between every two traversing type sealing plugs 4, the locator 8 is arranged at the top end of the tool string of the injection tubular column, the hydraulic control pipeline 10 and the armored cable 9 are connected to the electrohydraulic integrated polymer distributor in a serial connection mode, and finally connected to a hydraulic control cabinet on the ground.
As shown in fig. 6, the pressure sensor 1, the pressure sensor 3, the pressure sensor 5 and the pressure sensor 7 are respectively arranged at the joint of the hydraulic control pipeline of each stage of electrohydraulic integrated ligand and sequentially connected with the underground pressure sensor 1, the pressure sensor 3, the pressure sensor 5 and the pressure sensor 7 to each stage of electrohydraulic integrated ligand through the hydraulic control pipeline 10, and are used for testing the pressure value of the joint of the hydraulic control pipeline of each stage of electrohydraulic integrated ligand underground, and the pressure sensor 2, the pressure sensor 4, the pressure sensor 6 and the pressure sensor 8 are respectively arranged at the outer end of the electrohydraulic integrated ligand and are fixed through a protection device and are used for testing the pressure value of the outer end of each stage of electrohydraulic integrated ligand and are all connected to the armored cable 9.
As shown in fig. 2, the electrohydraulic integrated polymer matching device comprises a lower joint 201, a spring seat 202, a lower spring 203, a bearing 204, a track fixing sleeve 205, a track pin 206, a track sleeve 207, a lower connecting sleeve 208, a1 st rubber ring 209, an intermediate connecting sleeve 210, a polymer injection outer hole 211, a sliding sleeve 212, an upper connecting sleeve 213, a copper ring 214, polytetrafluoroethylene 215, a 2 nd rubber ring 216, an inner connecting rod 217, a gasket 218, an upper spring 219, an outer sleeve 220, a piston 221, an upper joint 222, a baffle ring 223, a hydraulic control joint 224, a1 st centering sleeve 225, a1 st quick joint 226, a1 st connecting nipple 227, a large plug 228, a supporting sleeve 229, a small plug 230, a sealing system 231, a mandrel 232, a body 233, a pin 234, a motor 235, a control circuit board 236, a cable joint 237, a 2 nd connecting nipple 238, a 2 nd quick joint 239, a 2 nd centering sleeve 240, wherein the lower joint 201 is internally provided with a step, the step is provided with a spring seat 202, a lower spring 203 is arranged on the spring seat 202, a bearing 204 is arranged at the upper end of the lower spring 203, a lower connecting sleeve 208 is in threaded connection with a lower joint 201, a track pin 206 movably connects a track fixing sleeve 205 and a track sleeve 207, the track pin 206 is assembled and is jointly arranged at the upper end of the bearing 204, an intermediate connecting sleeve 210 is in threaded connection with the lower connecting sleeve 208, the intermediate connecting sleeve 210 is provided with a polymer injection outer hole 211, an upper connecting sleeve 213 is in threaded connection with the intermediate connecting sleeve 210, an outer sleeve 220 is in threaded connection with the upper connecting sleeve 213, a sliding sleeve 212 is in threaded connection with an inner connecting rod 217, a step is arranged outside the inner connecting rod 217, the upper part of the step is sequentially provided with a gasket 218, an upper spring 219 and a gasket 218, a piston 221 is in threaded connection with the inner connecting rod 217, a baffle ring 223 is in threaded connection with the inner end of the piston 221, and the assembled sliding sleeve 220, the inner connecting rod 217, the gasket 218, the upper spring 219 and the piston 221 are in threaded connection, the baffle ring 223 is arranged inside the outer sleeve 220, the upper joint 222 is in threaded connection with the inner part of the upper end of the outer sleeve 220, the 1 st centering sleeve 225 is in threaded connection with the upper joint 222, the 1 st quick joint 226 is firstly sleeved on the outer wall of the 1 st connecting nipple 227, the 1 st connecting nipple 27 is in threaded connection with the body 233, the 1 st quick joint 226 is then quickly in threaded connection with the 1 st centering sleeve 225, the 2 nd connecting nipple 238 is in threaded connection with the body 233, the 2 nd quick joint 239 is firstly sleeved on the outer wall of the 2 nd connecting nipple 238, and the 2 nd quick joint 239 is quickly in threaded connection with the 2 nd centering sleeve 240.
The lower joint 201 and the lower connecting sleeve 208, the middle connecting sleeve 210 and the lower connecting sleeve 208, the upper connecting sleeve 213 and the middle connecting sleeve 210, the outer sleeve 220 and the upper connecting sleeve 213, the upper joint 222 and the outer sleeve 220, the 1 st centering sleeve 225 and the upper joint 222, the 1 st connecting nipple 227 and the body 233, the 1 st quick joint 226 and the 1 st centering sleeve 225, the 2 nd connecting nipple 238 and the body 233, the 2 nd quick joint 239 and the 2 nd centering sleeve 240, and the large plug 228 and the body 233 are sealed by the 1 st rubber ring 209;
the outer surface of the sliding sleeve 212 is in metal seal with the inner surface of the middle connecting sleeve 210;
the inner connecting rod 217, the middle connecting sleeve 210, the piston 221 and the upper joint 222, and the body 233 are provided with a sealing system, and the sealing system consists of a copper ring 214, polytetrafluoroethylene 215 and a2 nd rubber ring 216. The 2 nd rubber ring 216 is preferably a thick ring with the diameter phi of 5.3, and a fit gap of 1.5-2mm is reserved in the axial direction of the multi-stage combined sealing part;
the upper joint 222 is provided with a hydraulic control joint 224;
copper is preferably selected as the copper ring 214;
the polytetrafluoroethylene is preferably doped with graphite;
The threads at the joints of the lower joint 201 and the lower connecting sleeve 208, the middle connecting sleeve 210 and the lower connecting sleeve 208, the upper connecting sleeve 213 and the middle connecting sleeve 210, the outer sleeve 220 and the upper connecting sleeve 213 and the upper joint 222 and the outer sleeve 220 adopt American-made low-tooth Aike female trapezoidal threads;
The diameter of the electrohydraulic integrated polymer distributor 2 is controlled to be phi 92.5mm, and the inner diameter is kept above phi 42 mm;
The injection outer hole and other injection channels are processed in a reversed arc manner, so that the shearing degree of the polymer is reduced;
the motor and the control circuit board are made of high-temperature resistant materials, and the motor is preferably a direct-current stepping motor.
As shown in fig. 3, fig. 4 and fig. 5, an inner diameter-changing through hole is drilled at one side of the body 233, a large plug 228, a supporting sleeve 229, a small plug 230, a sealing system 231 and a mandrel 232 are sequentially placed in the through hole from bottom to top, the sealing system 231 is placed in a sealing inner hole of the body 233, the supporting sleeve 229 is placed at the lower end of the sealing system 231, the large plug 228 is in threaded and rubber ring sealing connection with the body 233, the small plug 230 is installed at the lower end of the mandrel 232, the small plug 230 is in threaded and rubber ring sealing connection with the mandrel 232, the motor 235 is placed at the upper end of the mandrel 232 and connected with the mandrel 232 through a pin 234, the circuit control board 236 is placed at the upper end of the motor 235, and the motor control board 236 is in sealing connection with the cable joint 237 after installation.
The body upper 233 is provided with the reserved pipeline 1 channel 2331, the conical plug hole 2332, the balance channel 2333, the pressing joint 2334, the pressing channel 2335, the pressure release channel hole 2336 and the pressure release + reserved pipeline channel 2337, all the joints and the channels are arranged in parallel, the conical plug hole is provided with a proper conical sealing plug, and the pressing joint is provided with a proper hydraulic pipeline joint;
example 2
The method for using the single-pipe layered injection string of the layered sand control well of the embodiment 1 comprises the following steps: the sand prevention pipe column of the outer wall and the layered polymer injection pipe column of the inner wall are sequentially put in, when each stage of electrohydraulic integrated polymer matching device is connected, the sand prevention pipe column of the outer wall and the layered polymer injection pipe column of the inner wall are respectively connected to a pressing joint 2334 and a cable joint 237 of the electrohydraulic integrated polymer matching device through a hydraulic control pipeline tee joint and an armored cable tee joint, all hydraulic control pipelines and armored cables of a main channel run through a reserved pipeline 1 channel 2331 and a pressure relief+reserved pipeline channel 2337, then the hydraulic control pipelines are connected with the pressing joint 2334a and the hydraulic control joint 224, and on-site tasks need to check whether conical plug holes 2332, 2332a, 2332b, 2332c and 2332d are matched with corresponding plugs or not, the hydraulic control pipelines and the armored cables are protected on the outer wall of the oil pipe through corresponding protectors, and finally connected to a ground control center;
During daily injection, a ground control center sends a command and supplies power to the motor 235 to push the mandrel 232 to move, when the electrohydraulic integrated coupler of a control layer needs to be pressurized, the mandrel is pushed to a first position, namely a pressurizing position in fig. 7, at the moment, the pressurizing connectors 2334 and 2334a are smooth, then pressure is pressurized through a hydraulic control pipeline according to the size of the injection amount, when a certain pressure is reached, the upper spring 219 and the lower spring 203 are compressed to continuously improve the pressure, the track sleeve 207 moves on the track fixed sleeve 205, so that the sliding sleeve 212 is driven to move up and down, the control of the flow is realized because the multi-stage injection holes with different sizes are arranged on the sliding sleeve, when the required flow is regulated, the motor is controlled to push the mandrel to a second position, namely a pressure stabilizing position in fig. 7, so that the pressure of the electrohydraulic integrated coupler of the layer cannot be influenced by other layers, if the electrohydraulic integrated coupler of the layer needs to be closed, the motor is controlled to push the third position, namely the pressure releasing position in fig. 7, rapid release and rapid pressure control of the hydraulic control can be realized, the pressure is required to be realized, and the pressure sensor is required to be closed, and the pressure sensor is successfully tested only when the pressure sensor is required to be successfully changed, and the pressure sensor is required to be successfully tested, and the pressure sensor is changed, and the pressure sensor is required to be changed, and has the pressure sensor is required to be successfully pressure sensor is changed.
Example 3
Taking three-layer injection as an example, the single-tube layered injection string for the layered sand control well in the embodiment 1 has the following specific flow regulation modes: according to a geological injection allocation scheme, displaying by combining with a ground flowmeter, adjusting the electrohydraulic integrated injection allocation device at the lowest end to a required injection allocation amount through a ground pressurizing change track, pressurizing the electrohydraulic integrated injection allocation device to a voltage stabilizing position, adjusting the electrohydraulic integrated injection allocation device in the middle to the required injection allocation amount, pressurizing the electrohydraulic integrated injection allocation device to the voltage stabilizing position, and finally adjusting the electrohydraulic integrated injection allocation device at the uppermost stage to the required injection allocation amount, and pressurizing the electrohydraulic integrated injection allocation device to the voltage stabilizing position, so that all levels of electrohydraulic integrated injection allocation devices cannot influence each other;
During later maintenance (layered seal inspection): when the electrohydraulic integrated matching device is blocked, and the electrohydraulic integrated matching device is required to be flushed by a large-displacement back flushing well, the electrohydraulic integrated matching device is regulated to a pressure relief position through an armored cable, the ground flushing liquid is reversely circulated to realize large-displacement back flushing, and when the layering condition of the packer is required to be known, the sealing effect of each level of traversing type sealing plug 4 can be obtained in real time according to the upper and lower pressure change of the test due to the fact that the pressure sensor 2, the pressure sensor 4, the pressure sensor 6 and the pressure sensor 8 are arranged at the outer end of the electrohydraulic integrated matching device of each level.
The above examples are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above examples, and any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principle of the present invention should be made in the equivalent manner, and the embodiments are included in the protection scope of the present invention.
Claims (8)
1. The layered sand control well layered injection string is characterized by comprising a plug, an electrohydraulic integrated polymer, a traversing type sealing plug, a hydraulic control pipeline, an armored cable, a sand control sleeve, an injection oil pipe, a positioner, a sand control layered packer and a sand filtering pipe; the sand control sleeve, the sand control layered packer and the sand filtering pipe form a sand control pipe column on the outer wall, the plug, the electrohydraulic integrated polymer matching device, the traversing type sealing plug, the hydraulic control pipeline, the armored cable, the polymer injection oil pipe and the positioner form an internal polymer injection pipe column, the two pipe columns are concentrically arranged, the sand control layered packer seals each oil layer, the sand filtering pipe is aligned with each oil layer, the sand control sleeve is connected with the sand control layered packer and the sand filtering pipe, the plug is arranged at the bottommost end of the polymer injection pipe column, the traversing type sealing plug is used for sealing and separating the oil layer of the polymer injection pipe column, one electrohydraulic integrated polymer matching device is arranged between every two traversing type sealing plugs, the positioner is arranged at the top end of a polymer injection pipe column tool string, and the hydraulic control pipeline and the armored cable are connected to each stage of the electrohydraulic integrated polymer matching device in a serial mode, and finally connected to a hydraulic control cabinet on the ground;
the electrohydraulic integrated polymer matching device comprises a lower joint, a spring seat, a lower spring, a bearing, a track fixing sleeve, a track pin, a track sleeve, a lower connecting sleeve, an intermediate connecting sleeve, a polymer injection outer hole, a sliding sleeve, an upper connecting sleeve, an inner connecting rod, a gasket, an upper spring, an outer sleeve, a piston, an upper joint, a baffle ring, a 1 st variable center sleeve, a 1 st quick joint, a 1 st connecting nipple, a large plug, a supporting sleeve, a small plug, a mandrel, a body, a pin, a motor, a control circuit board, a cable joint, a2 nd connecting nipple, a2 nd quick joint and a2 nd variable center sleeve; a step is arranged in the lower joint, the spring seat is arranged on the step, a lower spring is arranged on the spring seat, and a bearing is arranged at the upper end of the lower spring; the lower connecting sleeve is in threaded connection with the lower joint; the track pin movably connects the track fixing sleeve and the track sleeve, and is arranged at the upper end of the bearing after being assembled; the middle connecting sleeve is in threaded connection with the lower connecting sleeve, the middle connecting sleeve is provided with an injection outer hole, and the upper connecting sleeve is in threaded connection with the middle connecting sleeve and the outer sleeve respectively; the sliding sleeve is in threaded connection with the inner connecting rod, a step is arranged outside the inner connecting rod, and a gasket, an upper spring and a gasket are sequentially arranged on the upper part of the step from bottom to top; the piston is in threaded connection with the internal connecting rod, and the baffle ring is in threaded connection with the inner part of the upper end of the piston; placing the assembled sliding sleeve, the assembled connecting rod, the assembled gasket, the assembled spring, the assembled piston and the assembled baffle ring in the sleeve, and then connecting the assembled sliding sleeve, the assembled connecting rod, the assembled gasket, the assembled spring, the assembled piston and the assembled baffle ring with the sleeve through upper joints in the sleeve; the 1 st variable center sleeve is in threaded connection with the upper joint, the 1 st quick joint is firstly sleeved on the outer wall of the 1 st connecting nipple, then the 1 st connecting nipple is in threaded connection with the body, and then the 1 st quick joint is in quick threaded connection with the 1 st variable center sleeve; the 2 nd connecting nipple is in threaded connection with the body, the 2 nd quick connector is firstly sleeved on the outer wall of the 2 nd connecting nipple, then the 2 nd connecting nipple is in threaded connection with the body, and then the 2 nd quick connector is in quick threaded connection with the 2 nd variable center sleeve;
One side of the body is drilled with an inner reducing through hole, and a large plug, a supporting sleeve, a small plug, a sealing system and a mandrel are sequentially arranged in the through hole from bottom to top; the sealing system is placed in a sealing inner hole of the body, the supporting sleeve is placed at the lower end of the sealing system, the large plug is in threaded and rubber ring sealing connection with the body, the small plug is installed at the lower end of the mandrel, the small plug is in threaded and rubber ring sealing connection with the mandrel, the motor is placed at the upper end of the mandrel and is connected with the motor through a pin, and the circuit control board is placed at the upper end of the motor and is connected with the motor through a cable connector sealing after being installed;
The body is provided with a reserved pipeline channel, a conical plug hole, a balance channel, a pressing joint, a pressing channel, a pressure relief channel hole, pressure relief and reserved pipeline channels, all the joints and the channels are arranged in parallel, a proper conical seal plug is arranged at the conical plug hole, and a proper hydraulic control pipeline joint is arranged at the pressing joint.
2. The layered sand control well layered injection string of claim 1, further comprising a pressure sensor; a part of pressure sensor is connected with the electrohydraulic integrated polymer matching device and is connected with the hydraulic control pipeline for testing the pressure value of the joint of the electrohydraulic integrated polymer matching device and the hydraulic control pipeline; a part of pressure sensor is arranged at the outer end of the electrohydraulic integrated matching and gathering device and is fixed by a protection device and used for testing the pressure value of the outer end of the electrohydraulic integrated matching and gathering device; the armoured cable is connected with all pressure sensors.
3. The layered sand control well layered polymer injection string of claim 1, wherein the sliding sleeve is in sealing contact with the inner and outer surfaces of the intermediate connecting sleeve;
a plurality of injection holes with different diameters are axially arranged on the sliding sleeve.
4. The layered sand control well layered polymer injection string of claim 1, wherein the lower joint and lower connection sleeve, the middle connection sleeve and lower connection sleeve, the upper connection sleeve and middle connection sleeve, the outer sleeve and upper connection sleeve, the upper joint and outer sleeve, the 1 st variable center sleeve and upper joint, the 1 st connection nipple and body, the 1 st quick joint and 1 st variable center sleeve, the 2 nd connection nipple and body, the 2 nd quick joint and 2 nd variable center sleeve, and the large plug are sealed by rubber rings.
5. The layered sand control well layered polymer injection pipe column according to claim 1, wherein a sealing system is arranged between the inner connecting rod and the middle connecting sleeve, between the piston and the upper joint and between the piston and the upper joint, and between the inner connecting rod and the upper joint and between the piston and the upper joint are arranged at the body part, wherein the sealing system consists of copper rings, polytetrafluoroethylene and rubber rings;
the diameter of the rubber ring is 5.3mm, and a fit clearance of 1.5-2mm is reserved in the axial direction of the sealing part of the sealing system;
The copper ring is made of red copper; the polytetrafluoroethylene is graphite doped polytetrafluoroethylene.
6. The layered sand control well layered polymer injection tubular column according to claim 1, wherein the threads at the joints of the lower joint and the lower connecting sleeve, the middle connecting sleeve and the lower connecting sleeve, the upper connecting sleeve and the middle connecting sleeve, the outer sleeve and the upper connecting sleeve and the upper joint and the outer sleeve adopt low-tooth Aikery trapezoidal threads;
the upper joint is provided with a hydraulic control joint; and the injection outer holes and other injection channels are processed in reverse circular arcs, so that the shearing degree of the polymer is reduced.
7. The method for using the layered sand control well layered polymer injection string according to any one of claims 1 to 6, wherein the sand control string on the outer wall and the layered polymer injection string on the inner wall are sequentially lowered, and a plurality of layered polymer injection strings are connected in series according to the polymer injection level; when each stage of electrohydraulic integrated polymer distributor is connected, the hydraulic control pipeline tee joint and the armored cable tee joint are respectively connected to the pressurizing connector and the cable connector of the electrohydraulic integrated polymer distributor, the hydraulic control pipeline and the armored cable of the main channel are all provided with the reserved pipeline channel and the pressure release and reserved pipeline channel, then the hydraulic control pipeline is connected with the pressurizing connector and the hydraulic control connector, whether the conical plug hole is matched with the corresponding plug or not is checked on site, the hydraulic control pipeline and the armored cable are protected on the outer wall of the oil pipe through the corresponding protector, and finally the hydraulic control pipeline and the armored cable are connected to the ground control center.
8. The use method according to claim 7, wherein during daily injection, a ground control center sends an instruction and supplies power to a motor to push a mandrel to move, when the electrohydraulic integrated polymer distributor of a control layer needs to be pressurized, the mandrel is pushed to a determined pressurizing position, a pressurizing joint is kept smooth, then pressurizing control is performed through a hydraulic control pipeline according to the size of the injection quantity, when a certain pressure is reached, an upper spring and a lower spring are compressed, the pressure is continuously increased, a track sleeve is sleeved on a track fixing sleeve to move, so that a sliding sleeve is driven to move up and down, because the sliding sleeve is provided with injection holes with different sizes in multiple stages, the control of flow is realized, when the required flow is regulated, the motor is controlled to push the mandrel to a determined pressure stabilizing position, and thus the pressurizing pressure of other layers does not influence the pressure condition of the electrohydraulic integrated polymer distributor of the layer; if the electrohydraulic integrated polymer distributor of the layer needs to be closed, the motor is controlled to push the mandrel to the determined pressure relief position, so that the hydraulic control pressure can be rapidly released and rapidly closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011167811.2A CN114482943B (en) | 2020-10-27 | 2020-10-27 | Layered sand control well layered polymer injection tubular column and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011167811.2A CN114482943B (en) | 2020-10-27 | 2020-10-27 | Layered sand control well layered polymer injection tubular column and use method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114482943A CN114482943A (en) | 2022-05-13 |
| CN114482943B true CN114482943B (en) | 2024-06-18 |
Family
ID=81491165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011167811.2A Active CN114482943B (en) | 2020-10-27 | 2020-10-27 | Layered sand control well layered polymer injection tubular column and use method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114482943B (en) |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3008322B2 (en) * | 1992-09-09 | 2000-02-14 | 清水建設株式会社 | Well stratified pumping and injection system |
| US5348092A (en) * | 1993-03-26 | 1994-09-20 | Atlantic Richfield Company | Gravel pack assembly with tubing seal |
| AU3215400A (en) * | 1999-01-26 | 2000-08-07 | Schlumberger Technology Corporation | Method and apparatus for formation isolation in a well |
| US6679332B2 (en) * | 2000-01-24 | 2004-01-20 | Shell Oil Company | Petroleum well having downhole sensors, communication and power |
| CN101074602B (en) * | 2007-07-18 | 2010-10-13 | 中国石油化工股份有限公司胜利油田分公司孤东采油厂 | Stratified injection tubular pile |
| CN201679489U (en) * | 2010-01-22 | 2010-12-22 | 中国石油化工股份有限公司 | Double-pipe separated injection safety production pipe column |
| AU2011200861B2 (en) * | 2011-02-28 | 2015-07-16 | Baker Hughes Incorporated | Multi-phase conductor shoe for use with electrical submersible pump |
| CN202544824U (en) * | 2012-03-27 | 2012-11-21 | 中国海洋石油总公司 | Concentric double-pipe hierarchical injection pipe column |
| CN203285406U (en) * | 2013-02-22 | 2013-11-13 | 金显军 | Hydraulic control type by-layer oil production tubular column |
| CN203685147U (en) * | 2014-01-11 | 2014-07-02 | 中国石油化工股份有限公司 | Offshore separate-layer sand control, separate-layer oil production and separate-layer testing integrated pipe column |
| CN104775802B (en) * | 2015-03-26 | 2017-02-22 | 中国石油化工股份有限公司 | Separate-layer fracturing sand control string for thermal production well and sand control method thereof |
| CN205503109U (en) * | 2016-01-06 | 2016-08-24 | 李永立 | Separated -layer water injection tubular column |
| CN206477828U (en) * | 2017-03-01 | 2017-09-08 | 中国石油天然气股份有限公司 | A kind of concentric stepping layered polymer injection device of integrated form |
| CN209742869U (en) * | 2018-12-28 | 2019-12-06 | 中国石油天然气股份有限公司 | Intelligent alternate polymer injection device system for separate injection well |
| CN211549659U (en) * | 2019-10-24 | 2020-09-22 | 中国石油化工股份有限公司 | Long-life water injection string of offshore oil field |
| CN111042783B (en) * | 2020-01-10 | 2022-04-08 | 宋协翠 | Hydraulic control testing and adjusting integrated device for polymer injection well |
-
2020
- 2020-10-27 CN CN202011167811.2A patent/CN114482943B/en active Active
Non-Patent Citations (2)
| Title |
|---|
| 海上油田分层防砂分层注聚工艺技术研究;聂飞朋;;石油机械;20130910(09);全文 * |
| 液控式分层防砂分层注水一体化工艺技术;金显军;;胜利油田职工大学学报;20090415(02);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114482943A (en) | 2022-05-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110107251B (en) | Fracturing filling conversion tool | |
| CN102575512B (en) | Expandable liner tieback connection | |
| CN111005703B (en) | Offshore oilfield separate-layer sand prevention separate-layer water injection integrated tubular column and method | |
| CN103573230B (en) | A kind of selectivity production practice and its equipment | |
| CN108625830B (en) | Ball throwing type layering sand prevention process pipe column and method thereof | |
| EA032493B1 (en) | Crossover joint for connecting eccentric flow paths to concentric flow paths | |
| CN108894761B (en) | One-trip pipe column separate-layer water injection sand prevention backwashing device and method | |
| US20140000869A1 (en) | Isolation assembly for inflow control device | |
| CN203515527U (en) | Layering oil extraction device | |
| CN103510928A (en) | Layered oil exploitation device | |
| NO329553B1 (en) | System and method for simultaneous production from or injection into several zones in an oil or gas well | |
| CN109763795B (en) | Bypass diversion screen pipe | |
| MX2015003430A (en) | Downhole flow control, joint assembly and method. | |
| US20170292326A1 (en) | Well completion system and method, drilled well exploitation method, use of same in the exploitation/extraction of drilled wells, packaging capsule, telescopic joint, valve and insulation method, and valve actuation system, selection valve and use of same, connector and electrohydraulic expansion joint | |
| CN108331551B (en) | Selective plugging tool and method for plugging tubular column by using same | |
| CN110671080A (en) | Filling tool assembly, self-adaptive water screen pipe string and experimental method | |
| CN111878069A (en) | Composite continuous pipe cable oil-water well casing leakage finding system and method | |
| CN114482943B (en) | Layered sand control well layered polymer injection tubular column and use method thereof | |
| EP0150189A1 (en) | Apparatus and method for internally testing a plurality of interconnected pipe sections | |
| CN109779543B (en) | Expansion pipe pressurization system | |
| CN114482953A (en) | Offshore heavy oil layering viscosity reduction cold recovery pipe column and method | |
| CN111927392A (en) | Hydraulic control type switch sliding sleeve | |
| RU2558354C1 (en) | Device for suspension of steel and polymer pipe and method of its use | |
| RU2380526C1 (en) | Multi-reservoir well sumultanious-separate production method | |
| CN214424470U (en) | Take test of sand control structure to use switching valve in pit |
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 | ||
| GR01 | Patent grant |