CN110397426A - Well head frequency pressure pulses signal receiving/transmission device and oil exploration equipment - Google Patents
Well head frequency pressure pulses signal receiving/transmission device and oil exploration equipment Download PDFInfo
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- CN110397426A CN110397426A CN201910758717.5A CN201910758717A CN110397426A CN 110397426 A CN110397426 A CN 110397426A CN 201910758717 A CN201910758717 A CN 201910758717A CN 110397426 A CN110397426 A CN 110397426A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 40
- 239000007788 liquid Substances 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 238000009826 distribution Methods 0.000 claims description 7
- 230000008676 import Effects 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 230000005389 magnetism Effects 0.000 claims 1
- 230000001737 promoting effect Effects 0.000 abstract description 3
- 238000002955 isolation Methods 0.000 abstract description 2
- 230000004044 response Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 7
- 239000012530 fluid Substances 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000000243 solution Substances 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
- E21B43/16—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
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
- E21B47/14—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves
- E21B47/18—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves through the well fluid, e.g. mud pressure pulse telemetry
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- Engineering & Computer Science (AREA)
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- Mining & Mineral Resources (AREA)
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- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics (AREA)
- Remote Sensing (AREA)
- Acoustics & Sound (AREA)
- Fluid-Pressure Circuits (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The present invention discloses a kind of well head frequency pressure pulses signal receiving/transmission device, including valve block, it is installed on the pilot solenoid valve of valve block, pressure sensor and electric-control system for controlling signal transmitting and receiving, high-pressure inlet and pressure relief vent are provided in valve block, spool is movably installed in valve block, highly pressurised liquid in high-pressure inlet connected well, when pilot solenoid valve power loss, highly pressurised liquid reaches the both ends of spool in well, make spool isolation high-pressure inlet and pressure relief vent, to keep high pressure in well, when pilot solenoid valve obtains electric, highly pressurised liquid reaches one end of spool and pushes spool in well, high-pressure inlet is set to be connected to pressure relief vent, to reduce borehole pressure.The response of pilot solenoid valve is fast, and the pressure pulse signal quality height of generation, high reliablity, pressure sensor can receive the signal that underground equipment uploads and are transferred to electric-control system and is decoded, and the cost of the device is low, significantly reduces labor intensity of workers, is suitable for promoting.Invention additionally discloses a kind of oil exploration equipments including above-mentioned apparatus.
Description
Technical field
The present invention relates to field of petroleum exploitation, more particularly to a kind of well head frequency pressure pulses signal receiving/transmission device.This
Outside, the invention further relates to a kind of oil exploration equipments including above-mentioned apparatus.
Background technique
It at present in oil exploration equipment, needs using water injection well, for the decreasing water distribution method of water injection well, mainly uses pure machine
The injection well downhole flow regulator of tool formula needs to control water distribution quantity using the water nozzle of replacement different size according to water filling, it is complicated for operation, process is more,
Time-consuming, and uses intelligent watering method, i.e., installs intelligent watering device in underground, control underground water distribution by signal on the ground
The work of device adjusts water distribution quantity, then substantially reduces the time of construction, reduce production operation cost.
In intelligent watering method, how the control signal on ground is accurately and reliably transmitted to downhole tool down, is ratio
Compared with the key link.Pressure pulse transmission is in intelligent watering method, to generate pressure using most, a kind of most mature method
The ground installation of power pulse signal, the mode for mostly using high-pressure pump to be pressurized greatly, specific practice is to export ground high-pressure pump
High pressure water generates corresponding pressure pulse signal by the valve on manual operation pressure source and wellhead assembly as pressure source,
Pass to underground water distribution tool, the disadvantages of the method are as follows using high pressure pumping unit, cause it is at high cost, it is time-consuming using manual operation
Longer, labor intensity of workers is big, and it is poor that high-pressure pump is pressurized stability, in addition manual operation, leads to the pressure pulse signal matter generated
It is poor to measure, and reliability is low, and signal frequency is low, and when stratum water suction is serious, high-pressure pump is difficult to form obvious pressure difference in well head, influences to press
The generation of power pulse, and can not water-distributing tool uploads under received well pressure signal.
Therefore, how to provide a kind of well head frequency pressure pulses signal receiving/transmission device of stability and high efficiency is those skilled in the art
Member's technical issues that need to address.
Summary of the invention
The object of the present invention is to provide a kind of well head frequency pressure pulses signal receiving/transmission devices, pass through electric control system controls elder generation
The opening and closing of conductive magnet valve, and then high-quality, high reliablity pressure pulse signal is generated in well head；It is received by pressure sensor
The temperature of underground equipment upload, pressure signal, and be transferred to electric-control system and be decoded.It is a further object of the present invention to provide one
Kind includes the oil exploration equipment of above-mentioned apparatus.
In order to solve the above technical problems, the present invention provides a kind of well head frequency pressure pulses signal receiving/transmission device, including valve
Block, the pilot solenoid valve for being installed on the valve block and the electric-control system for controlling the pilot solenoid valve are set in the valve block
It is equipped with high-pressure inlet and pressure relief vent, is movably installed with spool in the valve block, highly pressurised liquid in the high-pressure inlet connected well,
When the pilot solenoid valve power loss, the highly pressurised liquid at the high-pressure inlet reaches the both ends of the spool, make the spool every
The exhausted high-pressure inlet and the pressure relief vent, to keep high pressure in well, when the pilot solenoid valve obtains electric, the high pressure into
Highly pressurised liquid at mouthful reaches one end of the spool and pushes the spool, so that the high-pressure inlet is connected to the pressure release and goes out
Mouthful, to reduce borehole pressure.
Preferably, the pressure drop adjusting rod for adjusting the spool stroke is provided in the valve block.
Preferably, filter is provided between the high-pressure inlet and the pilot solenoid valve.
Preferably, vertical through-hole is provided in the valve block, the lower end of the through-hole is the high-pressure inlet, described logical
The upper end in hole is equipped with closing fixture nut, and the side of the through-hole is provided with the first cross-drilled hole, and the outer end of first cross-drilled hole is
The inner end of the pressure relief vent, first cross-drilled hole is connected to the through-hole, and the other side of the through-hole is provided with setting up and down
The import of third cross-drilled hole and the second cross-drilled hole, the filter is connected to the through-hole by second cross-drilled hole, the filter
Outlet is connected to the hydraulic control import of the pilot solenoid valve by vertical core, and the working hole of the pilot solenoid valve is horizontal by the third
Hole is connected to the through-hole, and the spool is installed in the through-hole, and height is located at second cross-drilled hole and the third cross-drilled hole
Between, the emptying outlet for being connected to the hydraulic control outlet of the pilot solenoid valve is provided with above the valve block.
Preferably, the pilot solenoid valve is specially two-position three way magnetic valve, when the two-position three way magnetic valve power loss, institute
Working hole described in hydraulic control inlet communication is stated, when the two-position three way obtains electric, the working hole is connected to the hydraulic control outlet.
Preferably, inlet union is installed, the inlet union is connected with well head adapter, described at the high-pressure inlet
Outlet connection is installed at pressure relief vent, emptying connector is installed at the emptying outlet.
Preferably, it is set with valve pocket outside the spool, the upper end of the spool is provided with adjustment hole, the pressure drop adjusting rod
Across the closing fixture nut, the upper end of the pressure drop adjusting rod is equipped with locks with the adjusting of the closing fixture nut cooperation
Tight nut has control interval, outside the pressure drop adjusting rod between the lower end of the pressure drop adjusting rod and the adjustment hole bottom
It is set with spring.
Preferably, the spool side is provided with annular balancing slit, and the spool lower end is cone.
Preferably, the pressure gauge and pressure sensor for communicating to connect the electric-control system are provided in the valve block, it is described
Pressure gauge is connected to the high-pressure inlet with the detection mouth of the pressure sensor.
The present invention provides a kind of oil exploration equipment, including water injection well underground water distribution equipment and is installed on the water injection well
Well head frequency pressure pulses signal receiving/transmission device, the well head frequency pressure pulses signal receiving/transmission device is specially above-mentioned any
Well head frequency pressure pulses signal receiving/transmission device described in one.
The present invention provides a kind of well head frequency pressure pulses signal receiving/transmission device, including valve block, is installed on the guide of valve block
Solenoid valve and electric-control system for controlling pilot solenoid valve, are provided with high-pressure inlet and pressure relief vent in valve block, living in valve block
Dynamic to be equipped with spool, highly pressurised liquid in high-pressure inlet connected well, when pilot solenoid valve power loss, the highly pressurised liquid at high-pressure inlet is arrived
Up to the both ends of spool, make spool isolation high-pressure inlet and pressure relief vent, to keep high pressure in well, when pilot solenoid valve obtains electric,
Highly pressurised liquid at high-pressure inlet reaches one end of spool and pushes spool, so that high-pressure inlet is connected to pressure relief vent, to reduce well
Interior pressure.
Using the solenoid valve of low discharge as pilot stage, obtaining for pilot solenoid valve is controlled using the software program of electric-control system
Power loss, and then the switch of valve block is controlled, pressure pulse signal can be generated in the well head of high-pressure high-flow, manipulate very simple.
Pressure pulse signal can easily be adjusted, and frequency can be adjusted by the software program of electric-control system.The sound of pilot solenoid valve
Should fastly, thus the pressure pulse signal quality generated is high, stability is good, high reliablity.And the cost of device is low, significantly reduces
Labor intensity of workers is suitable for promoting.
The present invention also provides a kind of oil exploration equipments including above-mentioned apparatus, since above-mentioned apparatus is imitated with above-mentioned technology
Fruit, above-mentioned oil exploration equipment should also have same technical effect, no longer be discussed in detail herein.
Detailed description of the invention
Fig. 1 is a kind of cuing open for specific embodiment of well head frequency pressure pulses signal receiving/transmission device provided by the present invention
Face schematic diagram；
Fig. 2 is a kind of liquid of specific embodiment of well head frequency pressure pulses signal receiving/transmission device provided by the present invention
Press schematic diagram；
Fig. 3 is a kind of bowing for specific embodiment of well head frequency pressure pulses signal receiving/transmission device provided by the present invention
Depending on schematic diagram；
Fig. 4 is a kind of back of specific embodiment of well head frequency pressure pulses signal receiving/transmission device provided by the present invention
Face schematic diagram；
Fig. 5 is first in a kind of specific embodiment of well head frequency pressure pulses signal receiving/transmission device provided by the present invention
The outside schematic diagram of conductive magnet valve.
Specific embodiment
Core of the invention is to provide a kind of well head frequency pressure pulses signal receiving/transmission device, passes through electric control system controls elder generation
The opening and closing of conductive magnet valve, and then generate pressure pulse signal in well head, manipulation is simple, and signal quality and has good stability；It is logical
The temperature of equipment upload, pressure signal under over-voltage force snesor received well, and be transferred to electric-control system and be decoded.Of the invention
Another core is to provide a kind of oil exploration equipment including above-mentioned apparatus.
In order to enable those skilled in the art to better understand the solution of the present invention, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.
Fig. 1 to Fig. 5 is please referred to, Fig. 1 is one kind of well head frequency pressure pulses signal receiving/transmission device provided by the present invention
The diagrammatic cross-section of specific embodiment；Fig. 2 is the one of well head frequency pressure pulses signal receiving/transmission device provided by the present invention
The hydraulic schematic diagram of kind specific embodiment；Fig. 3 is well head frequency pressure pulses signal receiving/transmission device provided by the present invention
A kind of schematic top plan view of specific embodiment；Fig. 4 is well head frequency pressure pulses signal receiving/transmission device provided by the present invention
A kind of specific embodiment schematic rear view；Fig. 5 is well head frequency pressure pulses signal transmitting and receiving provided by the present invention dress
The outside schematic diagram of pilot solenoid valve in a kind of specific embodiment set.
The specific embodiment of the invention provides a kind of well head frequency pressure pulses signal receiving/transmission device, including valve block 1, guide
Solenoid valve 4 and electric-control system, pilot solenoid valve 4 are installed on valve block 1, the opening and closing of electric control system controls pilot solenoid valve 4, valve block 1
On be provided with high-pressure inlet P and pressure relief vent T2, spool 14 is movably installed in valve block 1, and spool 14 can move in valve block 1
To control the on state of valve block 1, highly pressurised liquid in high-pressure inlet P connected well.
When electric control system controls 4 power loss of pilot solenoid valve, the highly pressurised liquid at high-pressure inlet P reaches the both ends of spool 14,
Spool 14 is set to completely cut off high-pressure inlet P and pressure relief vent T2, to keep high pressure in well, electric control system controls pilot solenoid valve 4 is obtained
When electric, the highly pressurised liquid at high-pressure inlet P is only capable of reaching one end of spool 14, to push spool 14 mobile, makes high-pressure inlet P
It is connected to pressure relief vent T2, to reduce borehole pressure.
Using the solenoid valve of low discharge as pilot stage, pilot solenoid valve 4 is controlled using the software program of electric-control system
Power loss is obtained, and then controls the switch of valve block 1, pressure pulse signal can be generated in the well head of high-pressure high-flow, manipulated very simple
It is single.Pressure pulse signal can easily be adjusted, and frequency can be adjusted by the software program of electric-control system.Pilot solenoid valve 4
Response it is fast, thus the pressure pulse signal quality generated is high, stability is good, high reliablity.And the cost of device is low, subtracts significantly
Light labor intensity of workers, is suitable for promoting.
Further, in order to adjust the amplitude of pulse signal, i.e. pressure drop size, can be arranged in valve block 1 for adjusting
The pressure drop adjusting rod 8 of 14 stroke of spool.Filter 3 can also be set between high-pressure inlet P and pilot solenoid valve 4, to entrance
The liquid of pilot solenoid valve 4 carries out high-precision filtration, to prevent the intracorporal impurity blocking pilot solenoid valve 4 of liquid in well.By
The liquid flow direction of filter 3 is surrounding feed liquor, and centre bore goes out liquid, and filter core is sintering Ti-alloyed filter element, and filtering accuracy is 5 μm.
The specific embodiment of the invention provide well head frequency pressure pulses signal receiving/transmission device in, for the ease of respectively into
The arrangement of outlet and pilot solenoid valve 4 is provided with vertical through-hole in valve block 1, and the lower end of through-hole is high-pressure inlet P, through-hole
Upper end is equipped with closing fixture nut 7 to form enclosure space, and the side of through-hole is provided with the first cross-drilled hole, the outer end of the first cross-drilled hole
For pressure relief vent T2, the inner end connection through-hole of the first cross-drilled hole, the other side of through-hole is provided with third cross-drilled hole and the second cross-drilled hole, third
Cross-drilled hole is located above the second cross-drilled hole, and the import of filter 3 is connected to through-hole by the second cross-drilled hole, and the outlet of filter 3 passes through vertical core
It is connected to the hydraulic control import P of pilot solenoid valve 41, the working hole A of pilot solenoid valve 41It is connected to through-hole by third cross-drilled hole, spool 14 is pacified
Loaded in through-hole, and height is provided with above valve block 1 positioned at the second cross-drilled hole and third cross-drilled hole between and is connected to pilot solenoid valve 4
Hydraulic control exports T1Emptying outlet.The arrangement orientation of each structure can be according to circumstances adjusted, while in order to guarantee normal process, being needed
Fabrication hole is processed, and is blocked by plug, it is within the scope of the present invention.
Wherein, pilot solenoid valve 4 is specially two-position three way magnetic valve, when two-position three way magnetic valve power loss, hydraulic control import P1
It is connected to working hole A1, when two-position three way obtains electric, working hole A1It is connected to hydraulic control and exports T1, or use other kinds of solenoid valve.
In order to guarantee the proper flow of liquid, inlet union 2 is installed, inlet union 2 is connected with well head at high-pressure inlet P
Adapter 15, pressure relief vent T2Place is equipped with outlet connection 13, and emptying connector 5 is equipped at emptying outlet.
In the well head frequency pressure pulses signal receiving/transmission device that the specific embodiment of the invention provides, it is set with outside spool 14
There is valve pocket 12, valve pocket 12 is provided with adjustment hole by the fixed position of closing fixture nut 7, the upper end of spool 14, and pressure drop adjusting rod 8 is worn
Closing fixture nut 7 is crossed, the upper end of pressure drop adjusting rod 8 is equipped with the adjusting lock nut 9 cooperated with closing fixture nut 7, pressure
There is control interval between the lower end and adjustment hole bottom of falling tone pole 8, spring 11 is set with outside pressure drop adjusting rod 8.
When spool 14 completely cuts off high-pressure inlet P and pressure relief vent T2When, the bottom end face and spool 14 of pressure drop adjusting rod 8 are interior to be adjusted
Existing adjusting gap between knothole bottom surface, this adjusts the stroke that gap is spool 14, pressure drop adjusting rod 8 and the fixed spiral shell of closing
Being threaded connection between mother 7, rotate clockwise pressure drop adjusting rod 8, adjusts gap and increase, i.e., the stroke of spool 14 increases, conversely,
The stroke of rotation pressure drop adjusting rod 8 counterclockwise, spool 14 is reduced.When the movement of spool 14 makes high-pressure inlet P and pressure relief vent T2Even
When logical, the amplitude of borehole pressure decline depends on the stroke of spool 14, and 14 stroke of spool is big, the aperture that pressure release passage is opened
Greatly, pressure drop is also big, i.e. the amplitude of pressure pulse signal is also big；Conversely, 14 stroke of spool is small, the width of pressure pulse signal
It is worth amplitude also small, thus that pressure pulse signal is adjusted by rotating pressure drop adjusting rod 8.When pressure drop adjusting rod 8 is adjusted
After pressure, adjusting lock nut 9 can be screwed, pressure drop adjusting rod 8 is locked.
Specifically, 14 side of spool is provided with annular balancing slit, and 14 lower end of spool is cone, and angle is 90 degree；Spool
It is clearance fit between 14 side and valve pocket 12, sealing means are clearance seal；The conical end face and valve pocket 12 of spool 14
Between sealing means be metal sealing form line contact sealing；The material of main valve plug 14 is ceramic material, can also be according to feelings
Condition adjusts structure, material and sealing means etc., within the scope of the present invention.
On the basis of the well head frequency pressure pulses signal receiving/transmission device that above-mentioned each specific embodiment provides, valve block 1
On be provided with communication connection electric-control system pressure gauge 6 and pressure sensor 10, the detection mouth of pressure gauge 6 and pressure sensor 10
It is connected to high-pressure inlet P, i.e., is communicated with borehole pressure, when valve block 1 opens or closes, pressure gauge 6 can intuitively be shown in well in time
Change value of pressure；Pressure sensor 10 can by underground equipment upload temperature, pressure signal be transferred to electric-control system judged,
The work such as display, decoding.
Specific working mode are as follows: under original state, pilot solenoid valve 4 is in power failure state, the P of pilot solenoid valve 41Mouthful with
A1Mouth communicates, and it is φ a by diameter on valve pocket 12 that its circular cone end face and valve pocket 12 are in close contact spool 14 under spring force
Cylindrical hole seal, at this point, the highly pressurised liquid in well is turned by the well head of device when opening the hydraulic sluice valve on well head pipeline
Connector 15, inlet union 2 enter the valve block 1, into the well after valve block 1 in liquid be divided into two-way, all the way enter main fluid path, reach
The lower end surface of spool 14, the i.e. diameter of valve pocket 12 are in the cylindrical hole of φ a, and another way enters control fluid path, and process is high-precision
Filter 3 enters the P of pilot solenoid valve after filtering1Mouthful, since pilot solenoid valve 4 is now in power failure state, pilot solenoid valve 4
A1Mouth and P1It mouthful communicates, liquid is from P1Mouth arrives A1The upper chamber for entering spool 14 after mouthful, i.e., diameter is φ b circle on valve pocket 12
The top of post holes, wherein φ b is greater than φ a.At this point for spool 14, the fluid pressure of upper and lower end face is approximately equal, but stress
Area is different, and the corresponding hydraulic surface diameter phi b in 14 upper surface of spool is greater than lower end surface and corresponds to hydraulic surface diameter phi a, therefore spool 14
The hydraulic coupling of upper surface is greater than the hydraulic coupling of lower end surface, and hydraulic resultant force direction is downward, along with downward spring force, spool 14
The circular cone end face diameter phi a that is just pressed in valve pocket 12 circular hole step on, high-pressure inlet P and pressure relief vent T2It is isolated to close
It closes, fluid path is obstructed, keeps high pressure.
When pilot solenoid valve 4 must be electric, the P of pilot solenoid valve 41Mouth is closed, the pressure fluid quilt to come from filter 3
Cutting, A1Mouth and T1Mouth communicates, and the liquid of 14 upper chamber of spool passes through A1Mouth and T1Outside mouth discharge valve block 1, moment release, valve
14 upper surface hydraulic coupling of core disappears, and the high pressure liquid pressure of lower end surface quickly pushes spool 14 open after then overcoming spring force, high pressure into
Mouth P and pressure relief vent T2It is connected to, liquid passes through pressure relief vent T in well2It is discharged outside valve block 1, the decline of borehole pressure moment forms one
A pressure pulse.When 4 power loss of pilot solenoid valve, then valve block 1 is again switched off, and borehole pressure rises again to be restored to initial pressure,
To repeat the above steps.
In addition to above-mentioned well head frequency pressure pulses signal receiving/transmission device, a specific embodiment of the invention also provides a kind of packet
The oil exploration equipment of above-mentioned well head frequency pressure pulses signal receiving/transmission device is included, the knot of other each sections of the oil exploration equipment
Refer to the prior art for structure, and repeats no more herein.
Well head frequency pressure pulses signal receiving/transmission device provided by the present invention and oil exploration equipment are carried out above
It is discussed in detail.Used herein a specific example illustrates the principle and implementation of the invention, above embodiments
Illustrate to be merely used to help understand method and its core concept of the invention.It should be pointed out that for the common skill of the art
, without departing from the principle of the present invention, can be with several improvements and modifications are made to the present invention for art personnel, these change
It is also fallen within the protection scope of the claims of the present invention into modification.
Claims (10)
1. a kind of well head frequency pressure pulses signal receiving/transmission device, which is characterized in that including valve block (1), be installed on the valve block
(1) pilot solenoid valve (4) and the electric-control system for controlling the pilot solenoid valve (4) are provided with height on the valve block (1)
It is pressed into mouth and pressure relief vent, is movably installed with spool (14) in the valve block (1), high pressure liquid in the high-pressure inlet connected well
Body, when pilot solenoid valve (4) power loss, the highly pressurised liquid at the high-pressure inlet reaches the both ends of the spool (14), makes
The spool (14) completely cuts off the high-pressure inlet and the pressure relief vent, to keep high pressure in well, the pilot solenoid valve (4)
When obtaining electric, the highly pressurised liquid at the high-pressure inlet reaches one end of the spool (14) and pushes the spool (14), makes institute
It states high-pressure inlet and is connected to the pressure relief vent, to reduce borehole pressure.
2. well head frequency pressure pulses signal receiving/transmission device according to claim 1, which is characterized in that the valve block (1)
Inside it is provided with the pressure drop adjusting rod (8) for adjusting the spool (14) stroke.
3. well head frequency pressure pulses signal receiving/transmission device according to claim 2, which is characterized in that the high-pressure inlet
Filter (3) are provided between the pilot solenoid valve (4).
4. well head frequency pressure pulses signal receiving/transmission device according to claim 3, which is characterized in that the valve block (1)
It is inside provided with vertical through-hole, the lower end of the through-hole is the high-pressure inlet, and the upper end of the through-hole is equipped with closing and fixes
Nut (7), the side of the through-hole are provided with the first cross-drilled hole, and the outer end of first cross-drilled hole is the pressure relief vent, and described the
The inner end of one cross-drilled hole is connected to the through-hole, and the other side of the through-hole is provided with third cross-drilled hole and the second cross-drilled hole setting up and down,
The import of the filter (3) is connected to the through-hole by second cross-drilled hole, and the outlet of the filter (3) is connected by vertical core
Lead to the hydraulic control import of the pilot solenoid valve (4), the working hole of the pilot solenoid valve (4) is connected to institute by the third cross-drilled hole
Through-hole is stated, the spool (14) is installed in the through-hole, and highly between second cross-drilled hole and the third cross-drilled hole,
The emptying outlet for being connected to the hydraulic control outlet of the pilot solenoid valve (4) is provided with above the valve block (1).
5. well head frequency pressure pulses signal receiving/transmission device according to claim 4, which is characterized in that elder generation's conductive magnetism
Valve (4) is specially two-position three way magnetic valve, when the two-position three way magnetic valve power loss, is worked described in the hydraulic control inlet communication
Mouthful, when the two-position three way obtains electric, the working hole is connected to the hydraulic control outlet.
6. well head frequency pressure pulses signal receiving/transmission device according to claim 5, which is characterized in that the high-pressure inlet
Place is equipped with inlet union (2), and the inlet union (2) is connected with well head adapter (15), is equipped at the pressure relief vent
Outlet connection (13) is equipped with emptying connector (5) at the emptying outlet.
7. well head frequency pressure pulses signal receiving/transmission device according to claim 4, which is characterized in that the spool (14)
It is set with valve pocket (12) outside, the upper end of the spool (14) is provided with adjustment hole, and the pressure drop adjusting rod (8) passes through the closing
Fixture nut (7), the upper end of the pressure drop adjusting rod (8) is equipped with locks with the adjusting of closing fixture nut (7) cooperation
Nut (9), has control interval between the lower end and the adjustment hole bottom of the pressure drop adjusting rod (8), the pressure drop is adjusted
Spring (11) are set with outside bar (8).
8. well head frequency pressure pulses signal receiving/transmission device according to claim 7, which is characterized in that the spool (14)
Side is provided with annular balancing slit, and spool (14) lower end is cone.
9. according to claim 1 to well head frequency pressure pulses signal receiving/transmission device described in 8 any one, which is characterized in that
The pressure gauge (6) and pressure sensor (10) for communicating to connect the electric-control system, the pressure gauge are provided on the valve block (1)
(6) high-pressure inlet is connected to the detection mouth of the pressure sensor (10).
10. a kind of oil exploration equipment, including water injection well underground water distribution equipment and it is installed on the well head high frequency of the water injection well
Pressure pulse signal R-T unit, which is characterized in that the well head frequency pressure pulses signal receiving/transmission device is specially that right is wanted
Seek well head frequency pressure pulses signal receiving/transmission device described in 1 to 9 any one.
Priority Applications (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114165192A (en) * | 2021-12-14 | 2022-03-11 | 四川航天烽火伺服控制技术有限公司 | Electrodynamic type well head pressure pulse signal generating device and oil development equipment |
| CN114183133A (en) * | 2021-12-14 | 2022-03-15 | 四川航天烽火伺服控制技术有限公司 | Pneumatic wellhead pressure pulse signal generating device and oil exploitation equipment |
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| CN202215216U (en) * | 2011-06-24 | 2012-05-09 | 中国石油化工股份有限公司 | Device generating pulse at well mouth by means of solenoid valve |
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| CN109184638A (en) * | 2018-09-21 | 2019-01-11 | 中国石油天然气股份有限公司 | A kind of water injection well pressure wave code intelligence seperated layer water injection system and process |
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| CN202148890U (en) * | 2011-06-24 | 2012-02-22 | 中国石油化工股份有限公司 | Device for producing pressure pulse at wellhead of water injection well |
| CN202215216U (en) * | 2011-06-24 | 2012-05-09 | 中国石油化工股份有限公司 | Device generating pulse at well mouth by means of solenoid valve |
| US20170176243A1 (en) * | 2015-08-14 | 2017-06-22 | Halliburton Energy Services, Inc. | Mud pulse detection using distributed acoustic sensing |
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| CN109184638A (en) * | 2018-09-21 | 2019-01-11 | 中国石油天然气股份有限公司 | A kind of water injection well pressure wave code intelligence seperated layer water injection system and process |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114165192A (en) * | 2021-12-14 | 2022-03-11 | 四川航天烽火伺服控制技术有限公司 | Electrodynamic type well head pressure pulse signal generating device and oil development equipment |
| CN114183133A (en) * | 2021-12-14 | 2022-03-15 | 四川航天烽火伺服控制技术有限公司 | Pneumatic wellhead pressure pulse signal generating device and oil exploitation equipment |
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| Publication number | Publication date |
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| CN110397426B (en) | 2021-08-06 |
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