CN105604543A - Rocking valve mud pulse generator transmission system - Google Patents
Rocking valve mud pulse generator transmission system Download PDFInfo
- Publication number
- CN105604543A CN105604543A CN201510958602.2A CN201510958602A CN105604543A CN 105604543 A CN105604543 A CN 105604543A CN 201510958602 A CN201510958602 A CN 201510958602A CN 105604543 A CN105604543 A CN 105604543A
- Authority
- CN
- China
- Prior art keywords
- rotor
- pulser
- motor
- torsion spring
- pulse generator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 36
- 230000003534 oscillatory effect Effects 0.000 claims description 35
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 230000004044 response Effects 0.000 abstract description 9
- 230000007246 mechanism Effects 0.000 description 30
- 238000013461 design Methods 0.000 description 20
- 238000005553 drilling Methods 0.000 description 18
- 239000012530 fluid Substances 0.000 description 16
- 230000033001 locomotion Effects 0.000 description 15
- 239000003292 glue Substances 0.000 description 14
- 239000002002 slurry Substances 0.000 description 13
- 238000007789 sealing Methods 0.000 description 11
- 239000002775 capsule Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 235000001674 Agaricus brunnescens Nutrition 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000002929 anti-fatigue Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000013144 data compression Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- -1 landwaste Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000003121 nonmonotonic effect Effects 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Remote Sensing (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Geophysics (AREA)
- Acoustics & Sound (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Hydraulic Motors (AREA)
Abstract
The invention discloses a rocking valve mud pulse generator transmission system. The system comprises a hollow motor rotor shaft, bearings, a pulser rotor and a torsional spring, wherein the bearings are located at shaft shoulders of the ends of the motor rotor shaft, and the shaft shoulders of the motor rotor shaft are rotatably mounted inside the bearings; the torsional spring is located in the motor rotor shaft, one end of the torsional spring is close to the end of the motor rotor shaft and connected with the motor rotor shaft, and the other end of the torsional spring extends out of the other end of the motor rotor shaft and is hinged to the pulser rotor. By means of the rocking valve mud pulse generator transmission system, the response speed of a motor is higher under the same power condition.
Description
Technical field
The present invention relates to oil exploration equipment technical field, espespecially a kind of oscillatory valve mud pulse generator passesMoving system.
Background technology
Measurement while drilling (MeasureWhileDrilling:MWD) and well logging during (LoggingWhileDrilling:LWD) wide-angle and horizontal well drilling have been, well site data acquisition in real time, explanation, existingField decision-making and guidance complete the key technology of geologic steering drilling, and it combines record well logging, drilling well and oilHide the multiple subject technologies such as description, can simplify drillng operation program, cost-saving, improve drilling well precision,Adjust Drilling Design and improve recovery ratio.
Mud pulse generator the spread of the rumours system is the most important components in MWD, LWD equipment, isDown-hole information is transferred to the important means on ground in real time. Along with the development of formation evaluation technology, wellLower data volume is increasing gradually, needs the more pulser of high transfer rate, the transfer rate of mwd systemBecome the bottleneck that restriction downhole data is uploaded.
Operation principle in mud pulse generator the spread of the rumours system is generally: downhole data compression, coding,Motor driven systems is according to coded system and transmission Data Control rotor speed and position, motor output shaft bandMoving rotor relative stator is rotated (or swing), and periodically block fluid passage produces pressure wave in down-holeMoving, by the pulse of Well mouth sensor detected pressures. Through ground system, modulated pressure ripple is decoded, obtainThe data of coming in downhole transmitted.
Pulse the spread of the rumours system based on oscillatory valve principle is by turbogenerator electric power system, and impulse generator originallyBody and driving control system thereof, ground receives and signal demodulation process system three part compositions.
Slurry pulsator need of work electric power. At present, underground power supply used have two kinds of forms, the one, a slurry turbineGenerator powered, the 2nd, lithium battery power supply. It is larger that turbogenerator has power, the spy that power-on time is longPoint, turbine generation acc power is lower at present. Consider and comprise that rotary steering instrument etc. are whole with boring instrumentThe power supply of system, designed pulser power consumption is the smaller the better.
In general, the two-forty impulse generator of oscillatory valve principle is the important of mud-pulse the spread of the rumours systemPart, its impulse mechanism is made up of rotor and stator, and the forms of motion of rotor rotatablely movesAnd reciprocating motion. Conventionally reciprocating rotor pulser is called to oscillatory valve formula pulser, oscillatory valve formulaSlurry pulsator is fast because of its transfer rate, and precision height is adopted by oilfield service companies gradually.
Due in drilling process, the geological conditions on stratum changes with drilling depth is different, in drill stringMud pressure can produce fluctuation, and when rotor is sheared fluid, suffered waterpower torque has fluctuation, causes pulserLarger to motor torque and instantaneous power demands, it is many that pulser can adapt to the interior waterpower load of drill string preferablyThe feature becoming is most important.
Relevant valve plate-type pulser, the pulser of the continuous wave rotary valve principle of the Schlumberger of rotary valve,Reciprocating oscillatory valve principle pulser has pulser (that is: the APS oscillatory valve pulse of APS companyDevice). This kind of APS oscillatory valve pulser has transmission mechanisms in power train, so its swing speedLow, its message transmission rate is corresponding also lower.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides the transmission of a kind of oscillatory valve mud pulse generatorSystem, under same power, motor response speed is faster.
For making down-hole slurry pulser produce the fluctuation of high speed mud pressure, generally adopt Motor Drive rotorRotation or the mode swinging. From the angle analysis of system, Design of Transmission System principle mainly contains:
1. machinery, Electronic Design is all carried out around modulation system and Real-time demodulation;
2. power train, frame for movement and rotor design will be in conjunction with fluid analysis results;
3. with power consumption minimum, instrument pressure drop minimum, pressure amplitude is target optimizing to the maximum.
Transmission scheme uses motor direct driving rotor to do reciprocally swinging, shears fluid, pressure compensation andMovable sealing is used the scheme of capsule. The optional magneto self-reset oscillation electric machine of motor, or servomotor,Stepper motor, torque motor and all motors that can drive rotor motion. The advantage of this scheme is transmissionChain is short, and response rapidly. Shortcoming is Electric Machine Control difficulty, customize slowspeed machine.
Oscillatory valve swing shearing fluid, with needle-valve positive interaction principle (Halliburton MK series of pulses device)Mushroom head axially eject closed flow, and sheared continuously fluid comparison by the rotary valve of principle continuously,Its power consumption is less.
When pulser work, rotor swing scope can be optional between 0～360 degree, revolves so that rotor is discontinuousTurn, rotor coordinates and can produce the pressure waveform that ground can demodulation and be as the criterion. Because slurry pulsator existsIn drilling rod, in mud, work, the active force of paired pulses device stator and rotor need to consider mud flow time, withThis is according to carrying out the design of pulser operating mechanism. By the fluid of paired pulses device stator and rotor computational fieldsAnalyze, can obtain drawing a conclusion:
1. power torque distributes substantially in the same direction, drives rotor to move to closing direction;
2. waterpower torque and rotor-position are in close relations, with rotor rotational angular velocity and angular accelerationRelation is less;
3. pressure wave changes main relevant to flow and valve port flow area.
4. rotor rotational angle is that significantly maximum waterpower torque goes out for the impact of waterpower torqueRotor approaches closed position now.
Because mud is to the waterpower torque of rotor the trend of closing, and the process of pulser shearing fluid is exactlyMake rotor close and open according to certain rule. Utilize closing of the waterpower torque of mud to rotorTrend, can make mechanism and structural design more reasonable. On the movement locus of rotor, there is one can offsetClose the torque of trend waterpower torque, and the torque of managing to make this torque and mud close trend to rotor is use upAmount balance, motor just can be on movement locus the state lower swing of moment relative equilibrium. The oscillatory valve of designMud pulse generator transmission system i.e. the design based on such, installs a torsion spring additional and turn round in transmission systemRotation mechanism, the balance slurry pulsator rotor suffered waterpower torque in drilling rod as much as possible of this twist mechanism,Can greatly reduce power of motor, make slurry pulsator consume electric energy minimum. In addition, due to torsion spring twist machineThe effect of structure, slurry pulsator rotor response speed on its movement locus is faster.
In order to reach the object of the invention, the invention provides a kind of oscillatory valve mud pulse generator power trainSystem, comprising: hollow rotor axis of electric; Bearing, be positioned at described rotor axis of electric shaft shoulder place, end,And the shaft shoulder of described rotor axis of electric is installed in rotation on described bearing inside; Pulser rotor; And instituteState torsion spring, be positioned at described rotor axis of electric, and its one end near the end of described rotor axis of electric and withThe other end that described rotor axis of electric is connected, the other end stretches out described rotor axis of electric and described pulserRotor is hinged.
Alternatively, described oscillatory valve mud pulse generator transmission system also comprises: shaft coupling, is positioned at instituteState between torsion spring and described pulser rotor and be connected described torsion spring and described pulser rotor.
Alternatively, described bearing includes two or more.
Oscillatory valve mud pulse generator transmission system provided by the invention, is considering oscillatory valve pulseWhen device transport characteristics, combine the hydraulic characteristic(s) of rotor under the effect of drill string inner fluid. The biography of designMoving system will meet following functions feature: for oscillatory valve pulser, power consumption is little, and response frequency is fast,Being difficult for the feature of jam, is novel oscillatory valve pulser design transmission scheme; Because pulser is in down-holeUnder the environment of HTHP, work, when design, will consider that paired pulses device carries out pressure compensation, adopts high temperature resistantRubber parts carry out pressure compensation; Pulser is worked in mud, and motor rotation relates to sealing, moving closeEnvelope is processed, assembly difficulty is large, poor reliability in use procedure, and when design, motor movement can not exceed 360Degree, can not continuous rotation, and the form of rubber capsule is selected in movable sealing.
The movement locus of oscillatory valve pulser is non-continuous rotation, just in certain angle, moves back and forth,Therefore invention adopts capsule to seal. In order to improve the response speed of power train, power train is short, subtracts as far as possibleLittle reverse dead zone error, if in power train design, need to accelerate or slow down, drives except usingOutside moving circuit drives motor, can between torsion spring and rotor, add gearbox to realize increase and decrease speed, but wantAsk processing installation accuracy to want high.
Other features and advantages of the present invention will be set forth in the following description, and, partly fromIn bright book, become apparent, or understand by implementing the present invention. Object of the present invention is excellent with otherPoint can be realized and be obtained by specifically noted structure in description, claims and accompanying drawing.
Brief description of the drawings
Accompanying drawing is used to provide the further understanding to technical solution of the present invention, and forms of descriptionPoint, be used from and explain technical scheme of the present invention with the application's embodiment mono-, do not form the present inventionThe restriction of technical scheme.
Fig. 1 is the part of the oscillatory valve mud pulse generator transmission system described in one embodiment of the inventionSectional structure schematic diagram;
Fig. 2 is the torsion spring being used in combination with the oscillatory valve mud pulse generator transmission system shown in Fig. 1Structure after twist mechanism positioning disk, locking tapered sleeve and torsion twist mechanism positioning disk locking end cap are assembled mutuallySchematic diagram.
Wherein, in Fig. 1 and Fig. 2, the corresponding relation between Reference numeral and component names is:
1 rotor axis of electric, 2 stators, 3 bearings, 4 pulser rotors, 5 torsion springs, 6 shaft couplings, 1Torsion spring twist mechanism positioning disk; 12 locking tapered sleeves, 13 reverse twist mechanism positioning disk locking end cap.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, hereinafter in connection with accompanying drawingEmbodiments of the invention are elaborated. It should be noted that, in the situation that not conflicting, this ShenPlease in embodiment and the feature in embodiment can mutually be combined.
Set forth in the following description a lot of details so that fully understand the present invention, still, thisInvention can also adopt other to be different from mode described here and implement, therefore, and protection model of the present inventionEnclose the restriction that is not subject to following public specific embodiment.
Below in conjunction with accompanying drawing, the oscillatory valve mud pulse generator transmission described in some embodiments of the invention is describedSystem.
Oscillatory valve mud pulse generator transmission system provided by the invention, as shown in Figure 1, comprising: skyThe rotor axis of electric 1 of the heart; Bearing 3, is positioned at shaft shoulder place, end, the rotor axis of electric 1 of rotor axis of electric 1The shaft shoulder be installed in rotation on bearing 3 inside; Pulser rotor 4; Torsion spring 5, is positioned at described motor and turnsIn sub-axle 1, and its one end is connected near the end of rotor axis of electric 1 and with described rotor axis of electric 1,The other end and described pulser rotor 4 that the other end stretches out described rotor axis of electric 1 are hinged; And stator2。
Oscillatory valve mud pulse generator transmission system provided by the invention, under same power, motorResponse speed is faster.
Wherein, bearing 3 includes two or more.
Moreover oscillatory valve mud pulse generator transmission system also comprises: shaft coupling 6, is positioned at torsion spring 5And between pulser rotor 4 and be connected torsion spring 5 and pulser rotor 4.
Do not consider the direction of torsion spring institute torque suspension, the available formula T of equalising torque relationM+TW+TS＝J·αRepresent.
In formula: TM-motor torque, the Nm of unit; TWThe torque of-waterpower, the Nm of unit; TSThe torque of-spring,The Nm of unit; The angular acceleration of α-rotor, the rad/s of unit2; The rotary inertia of J-rotor, units/kg m2。
Like this, for Project Realization, want to improve message transmission rate, need to improve rotorThe hunting frequency of axle also will be considered in improving hunting frequency simultaneously, rotor axis of electric is swung realThe power that border consumes is little, controls to greatest extent the power of downhole instrument, reduces slurry pulsator power consumption.Except the swinging track from rotor axis of electric, outside the aspects such as swing mode are considered, the auxiliary machine that design increasesStructure, torsion spring twist mechanism has solved this problem preferably.
What rotor axis of electric and torsion spring reversed is used in conjunction with, and makes good use of torsion spring, makes rotor close trend torqueWith the torque balance of torsion spring, can greatly reduce motor output torque, and then reduce power of motor.
After torsion spring design machines, be assembled into torsion spring mechanism. Before practical set, need to obtain torsion springTwist mechanism stiffness characteristics. Its torsion spring mechanism physical characteristic need to be surveyed and be obtained.
Oscillatory valve mud pulse generator transmission system principal character provided by the invention is as follows:
Transmission system is by motor (oscillating motor, servomotor, stepper motor, torque motor etc.), glueCup or capsule, pulser rotor composition, motor driving pulse device rotor swing, by glue cup realize sealing andPressure compensation;
As the key feature-electric system of the heart of wireless drilling data transmission system, its performanceQuality directly determine the signal transmission performance of wireless drilling data transmission system and the reliability of system. AndDue to application circumstances such as the high-temperature of wireless drilling data transmission system, High Voltage, immersion oil water, thisJust require motor and driving control system can not only meet the energy index of While drilling system, also require it canAdapt to harsh oil well environment. The design of MWD (Measurement While Drilling) data transmission system drive motors has taken into full account that oil gas field is darkThe special applied environment of well, optimizes electric machine structure, improves the class of insulation of motor winding and slot insulation,Reduce copper loss and the core loss of motor, improve the efficiency of motor, reduce the temperature rise of motor, thereby promoteMotor performance, the reliability of raising system.
Electric system main design parameters and performance are as follows:
Motor can normally be worked under environment temperature more than 150 DEG C;
Motor can normally be worked under the random vibration condition in 20grms in intensity;
Motor need to be immersed in hydraulic oil and work;
See with regard to present case, in above-mentioned working environment, motor general power should be controlled at 500W itIn;
DC bus-bar voltage 48V, 90V or other voltage definite according to instrument bus situation;
In above-mentioned working environment, the torque of motor output continuous rotation will meet driving pulse device rotor fortuneMoving requirement also will be considered to be stuck on rotor when loss circulation material simultaneously, can utilize motor self torque to carry outUnfreezing, in above-mentioned working environment, the specified continuous rotation rotating speed of motor is according to pulser need of work, withCan be as the criterion by modulating-coding.
Motor need meet under these conditions the ability of normal work continuously, MTBF > 10000 hours;
Because electronics armature spindle is hollow-core construction, motor can be purchased by commercialization, also can pass throughCustomization obtains, and torsion spring twist mechanism need be put into hollow armature spindle;
The other end (tail end) of slurry pulsator torsion spring twist mechanism is fixing, rotor axis of electric and turning roundSpring twist mechanism, is hinged together by the mode being fixedly hinged, and pin joint is near slurry pulsatorRotor-end, pulser torsion spring twist mechanism tail end fixing point and rotor axis of electric and pulser armature spindleBe fixedly hinged a little between belong to torsion spring twist mechanism;
Hinged due between rotor axis of electric and torsion spring twist mechanism, in the time that rotor axis of electric swings,Can drive torsion spring twist mechanism with identical angular speed motion, torsion spring twist mechanism can produce torque,Drive slurry pulsator rotor swing by shaft coupling, like this, torsion spring twist mechanism has just been brought into play workWith, i.e. the torque of the close trend of balanced fluid to rotor;
Fluid is the trend of closing to the waterpower torque of rotor, and pulser is sheared fluid generation pressure oscillation and is alsoMake rotor closure, the interpolation of torsion spring twist mechanism, makes on the movement locus of rotor, has one can put downThe torque of Hengshui power torque, can make the power consumption of motor reduce. Under same power, motor responseSpeed is faster.
The front end of torsion spring twist mechanism rotates with rotor axis of electric, and rear end is locked by locking cone cover.Locking tapered sleeve is a kind of machine driving connector, is to be compressed and connected by the conical surface, makes to lock in tapered sleeveBetween surface and axle, between outer surface and connector wheel hub, produce enclasping force, by locking tapered sleeve and partsIn conjunction with the frictional force carry-over moment of pressure (locking cone puts keyway sometimes) and generation, realize parts and axleConnection. Have that centering precision is high, compact conformation, installation and maintenance be convenient. Locking tapered sleeve and torsion spring tail endAdopt interference fit, determine when torsion spring positioning disk locking end cap relies on screw constantly locking cone cover to be pressed into torsion springIn discone hole, position, compressed by bellmouth inner surface and hold torsion spring tightly.
Fig. 2 and Fig. 1 are used in conjunction with, and in Fig. 2, label 11 is torsion spring twist mechanism positioning disk; 12 areLocking tapered sleeve, 13 for reversing twist mechanism positioning disk locking end cap.
The main effect of oscillatory valve mud pulse generator transmission system provided by the invention is as follows:
Transmission system scheme, by motor direct-drive pulser rotor, driving-chain is shorter, can realize fastSpeed response;
This power train adopts glue cup or capsule to carry out pressure compensation and adopts glue cup or capsule to realize and movesSealing; Glue cup two ends are separately fixed at torsion spring (motion) and pulser shell (static) above, when torsion spring swingsTime, glue cup can produce torsional deflection, and the part that therefore glue cup is fixed on torsion spring and shell can adopt quietThe method design of sealing or movable sealing. The design of same glue cup sealing also has very high performance requirement, concreteBe embodied in the following aspects:
1,, because glue cup has certain motion that radially wobbles, the distortion of glue cup can produce an elastic-restoring force,This restoring force can produce a load to motor, will ensure on the one hand the intensity of glue cup, again in the time of designTake into account the performance of motor.
2, glue cup, can be at the inner alternation that produces of glue cup along with torsion spring does high-frequency, torsional deflection for a long timeStress, glue cup has the ability of very strong antifatigue.
3, high temperature resistant property is good. Along with the increase of drilling depth, downhole temperature raises gradually, but due to brillWell liquid has certain cooling effect, and downhole tool in the operating temperature of 3000m well depth at 100 DEG C or moreHeight, therefore will ensure that sealing property can not lose efficacy under the condition of high temperature.
4, corrosion-resistant, high pressure resistant. The pressure of drilling fluid changes with well depth, contains in drilling fluid simultaneouslyThe solid phase such as landwaste, sand grains and other chemicals, seal is wanted to bear high pressure and corrosion-resistant. When establishingWhen meter well depth is 3000m, the pressure of the drill in shaft bottom can reach 35MPa or higher, therefore comes for glue cupSay that lifting surface area is larger, designed pressure compensation scheme.
5, the service life of seal higher, do not need frequent replacing.
In power train, have or not reduction box all can, optimal design is without the conversion between kinematic pair because theseThe reverse dead zone error of intermediary agency may affect the positional precision of pulser rotor;
Add torsion spring and can be used as motor to power transmission shaft between slurry pulsator rotor, due to down-hole narrow space,Doing after this improves to simplify mud pulse generator structure, for other arrangements of elements provide space;
For torsion spring twist mechanism, in working rotor angle range, along with the variation of torsion spring corner,Torsion spring output torque value and fluid are more approaching better to the torque value of rotor.
In the absence of torsion spring twist mechanism, under the low hunting frequency of the rotor of pulser, motor output turnsSquare is mainly used in offsetting the effect of waterpower torque; Substantially be line for the suffered waterpower torque value of rotor axis of electricProperty situation about changing, add after torsion spring twist mechanism can basic neutralisation waterpower torque value, can reduce motorTorque, and then reduce the power demand to motor, reduce motor diameter and length, make slurry pulsator littleType changes into as possibility, is convenient to the layout in drill string.
When expanding rotor axis of electric Work-corner scope, will cause waterpower torque with the non-monotonic variation of cornerSituation, now also can add torsion spring torsion device, but effect is slightly poor.
Oscillatory valve mud pulse generator transmission system provided by the invention, is considering oscillatory valve pulseWhen the transport characteristics of device, combine the hydraulic characteristic(s) of rotor under the effect of drill string inner fluid. DesignTransmission system will meet following functions feature: for oscillatory valve pulser, power consumption is little, response frequencyHurry up, be difficult for the feature of jam, is novel oscillatory valve pulser design transmission scheme; Because pulser existsUnder the environment of down-hole HTHP, work, when design, will consider that paired pulses device carries out pressure compensation, adopts resistance toThe rubber parts of high temperature carries out pressure compensation; Pulser is worked in mud, and motor rotation relates to sealing,Movable sealing processing, assembly difficulty are large, and in use procedure, motor movement can not exceed 360 when poor reliability designDegree, can not continuous rotation, and the form of rubber capsule is selected in movable sealing.
The movement locus of oscillatory valve pulser is non-continuous rotation, just in certain angle, moves back and forth,Therefore invention adopts capsule to seal. In order to improve the response speed of power train, power train is short, subtracts as far as possibleLittle reverse dead zone error.
In description of the invention, term " installation ", " being connected ", " connection ", " fixing " etc.All should be interpreted broadly, for example, " connection " can be to be fixedly connected with, and can be also to removably connect,Or connect integratedly; Can be to be directly connected, also can indirectly be connected by intermediary. For abilityThe those of ordinary skill in territory, can understand in the present invention concrete of above-mentioned term as the case may beImplication.
In the description of this description, term " embodiment ", " some embodiment ", " concreteEmbodiment " etc. the description specific features that means to describe in conjunction with this embodiment or example, structure, material orFeature is contained at least one embodiment of the present invention or example. In this manual, to above-mentioned termSchematic statement not necessarily refer to identical embodiment or example. And, the specific features of description,Structure, material or feature can be tied in suitable mode in any one or more embodiment or exampleClose.
Although the disclosed embodiment of the present invention as above, described content is only for ease of understanding the present inventionAnd the embodiment adopting, not in order to limit the present invention. Technology people under any the present invention in fieldMember, is not departing under the prerequisite of the disclosed spirit and scope of the present invention, can be in the form of implementing and thinOn joint, carry out any amendment and variation, but scope of patent protection of the present invention, still must be with appended rightThe scope that claim defines is as the criterion.
Claims (3)
1. an oscillatory valve mud pulse generator transmission system, is characterized in that, comprising:
Hollow rotor axis of electric (1);
Bearing (3), is positioned at the shaft shoulder place, end of described rotor axis of electric (1), described rotor axis of electric(1) the shaft shoulder is installed in rotation on described bearing (3) inside;
Pulser rotor (4); With
Described torsion spring (5), be positioned at described rotor axis of electric (1), and its one end is near described motorThe end of armature spindle (1) and be connected with described rotor axis of electric (1), the other end stretches out described motorThe other end of armature spindle (1) and described pulser rotor (4) are hinged.
2. the oscillatory valve mud pulse generator transmission system described in 1 as requested, is characterized in that, alsoComprise:
Shaft coupling (6), is positioned between described torsion spring (5) and described pulser rotor (4), is also connectedDescribed torsion spring (5) and described pulser rotor (4).
3. oscillatory valve mud pulse generator transmission system according to claim 1 and 2, its featureBe, described bearing (3) includes at least two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510958602.2A CN105604543A (en) | 2015-12-18 | 2015-12-18 | Rocking valve mud pulse generator transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510958602.2A CN105604543A (en) | 2015-12-18 | 2015-12-18 | Rocking valve mud pulse generator transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105604543A true CN105604543A (en) | 2016-05-25 |
Family
ID=55984828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510958602.2A Pending CN105604543A (en) | 2015-12-18 | 2015-12-18 | Rocking valve mud pulse generator transmission system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105604543A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106595922A (en) * | 2017-02-08 | 2017-04-26 | 中国海洋石油总公司 | Torque detection device and method |
| CN106958442A (en) * | 2017-05-04 | 2017-07-18 | 中国海洋石油总公司 | A kind of mud-pulse Transmission system and method |
| CN109209355A (en) * | 2018-11-02 | 2019-01-15 | 中国石油大学(华东) | A kind of unidirectional continuous rotation motor driven shearing valve type mud pulse generator |
| CN113513310A (en) * | 2021-07-16 | 2021-10-19 | 中海油田服务股份有限公司 | Method for determining torsion shaft assembly angle of swing valve pulse generator |
| CN113605884A (en) * | 2021-07-16 | 2021-11-05 | 中海油田服务股份有限公司 | Method for determining torsion shaft parameters of oscillating valve pulse generator |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5740126A (en) * | 1994-08-25 | 1998-04-14 | Halliburton Energy Services, Inc. | Turbo siren signal generator for measurement while drilling systems |
| US20040069535A1 (en) * | 2001-02-27 | 2004-04-15 | Baker Hughes Incorporated | Method for generating pressure fluctuations in a flowing fluid |
| CN1721655A (en) * | 2004-07-09 | 2006-01-18 | Aps技术公司 | Improved rotary pulser for transmitting information to the surface from a drill string down hole in a well |
| CN101294492A (en) * | 2007-04-29 | 2008-10-29 | 新疆石油管理局钻井工艺研究院 | Slurry pulsator |
| CN103791136A (en) * | 2012-10-31 | 2014-05-14 | 常州乐士雷利电机有限公司 | Drain valve |
| CN203911714U (en) * | 2014-06-06 | 2014-10-29 | 嘉善天慧光电科技有限公司 | Resonance-based high-frequency vibration motor |
| CN104481518A (en) * | 2014-11-03 | 2015-04-01 | 中国石油大学(华东) | Oscillation shearing type slurry pulse generator and control method thereof |
-
2015
- 2015-12-18 CN CN201510958602.2A patent/CN105604543A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5740126A (en) * | 1994-08-25 | 1998-04-14 | Halliburton Energy Services, Inc. | Turbo siren signal generator for measurement while drilling systems |
| US20040069535A1 (en) * | 2001-02-27 | 2004-04-15 | Baker Hughes Incorporated | Method for generating pressure fluctuations in a flowing fluid |
| US20060118334A1 (en) * | 2001-02-27 | 2006-06-08 | Baker Hughes Incorporated | Oscillating shear valve for mud pulse telemetry |
| CN1721655A (en) * | 2004-07-09 | 2006-01-18 | Aps技术公司 | Improved rotary pulser for transmitting information to the surface from a drill string down hole in a well |
| CN101294492A (en) * | 2007-04-29 | 2008-10-29 | 新疆石油管理局钻井工艺研究院 | Slurry pulsator |
| CN103791136A (en) * | 2012-10-31 | 2014-05-14 | 常州乐士雷利电机有限公司 | Drain valve |
| CN203911714U (en) * | 2014-06-06 | 2014-10-29 | 嘉善天慧光电科技有限公司 | Resonance-based high-frequency vibration motor |
| CN104481518A (en) * | 2014-11-03 | 2015-04-01 | 中国石油大学(华东) | Oscillation shearing type slurry pulse generator and control method thereof |
Non-Patent Citations (5)
| Title |
|---|
| 张晋源等: "《实施汽车转向与悬架系统维修》", 30 June 2015, 北京理工大学出版社 * |
| 程烨: "往复式脉冲器转子水力特性研究", 《中国优秀硕士学位论文数据库信息科技辑》 * |
| 程烨等: "往复式泥浆脉冲发生器转子水力转矩", 《石油学报》 * |
| 鄢泰宁: "《检测技术及钻井仪表》", 31 January 2009, 中国地质大学出版社 * |
| 黄舟: "涡轮发电机MWD技术在超深井中的应用", 《科技创业家》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106595922A (en) * | 2017-02-08 | 2017-04-26 | 中国海洋石油总公司 | Torque detection device and method |
| CN106958442A (en) * | 2017-05-04 | 2017-07-18 | 中国海洋石油总公司 | A kind of mud-pulse Transmission system and method |
| CN109209355A (en) * | 2018-11-02 | 2019-01-15 | 中国石油大学(华东) | A kind of unidirectional continuous rotation motor driven shearing valve type mud pulse generator |
| CN109209355B (en) * | 2018-11-02 | 2021-10-12 | 中国石油大学(华东) | Shear valve type slurry pulse generator driven by unidirectional continuous rotating motor |
| CN113513310A (en) * | 2021-07-16 | 2021-10-19 | 中海油田服务股份有限公司 | Method for determining torsion shaft assembly angle of swing valve pulse generator |
| CN113605884A (en) * | 2021-07-16 | 2021-11-05 | 中海油田服务股份有限公司 | Method for determining torsion shaft parameters of oscillating valve pulse generator |
| CN113605884B (en) * | 2021-07-16 | 2024-04-09 | 中海油田服务股份有限公司 | Method for determining torsion shaft parameters of swing valve pulse generator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105604543A (en) | Rocking valve mud pulse generator transmission system | |
| CN202081889U (en) | Rotary valve type mud pulse generator | |
| CN203452776U (en) | Continuous wave mud pulse generator | |
| CN103410503B (en) | A kind of continuous wave slurry pulse generator | |
| CN105863622B (en) | Shear valve mud pulse generator work system and its operating mode | |
| CN106958442B (en) | Mud pulse transmission system and method | |
| US10273784B2 (en) | Fluid-driven power generation unit for a drill string assembly | |
| CN104481518B (en) | A kind of oscillatory shear formula mud pulse generator and control method | |
| CN102425411A (en) | Continuous wave slurry pulse generator | |
| CN201221355Y (en) | Continuous wave pressure pulse generator | |
| CA2892167C (en) | Directional control of a rotary steerable drilling assembly using a variable flow fluid pathway | |
| RU2622574C2 (en) | Downhole drilling motor and method of use | |
| CN204436373U (en) | A kind of underground high-power is powered mud signal generator | |
| CN101737009A (en) | Liquid-gas phase drilling medium rotary table driving geosteering drilling system | |
| CN101949287A (en) | Method and device for modulating underground measurement while drilling data based on drilling fluid continuous pressure wave technology | |
| CN101718195A (en) | Slurry pulse generator | |
| CN205067013U (en) | Rocker valve mud impulse generator torsional spring torsion -testing calibration device | |
| CN106014396A (en) | Dynamic sealing and pressure compensation structure for shear valve slurry pulser | |
| WO2013130530A1 (en) | Apparatus including load driven by a motor coupled to an alternator | |
| CN205172569U (en) | Positive impulse generator of linear electric motor driven continuous wave | |
| CN104612670A (en) | Magnetic driving isolation type quick petroleum drilling mud pressure wave data transmission device | |
| CN201826834U (en) | Magnetic coupled type continuous wave pressure pulse generator | |
| CN112593929A (en) | Motor type mud pulse generator | |
| WO2023124814A1 (en) | Slurry pressure wave signal modulation apparatus and method | |
| CN202991021U (en) | Underground self-powered slurry signal generator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Applicant after: China Offshore Oil Group Co., Ltd. Applicant after: China Oilfield Services Limited Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Applicant before: China National Offshore Oil Corporation Applicant before: China Oilfield Services Limited |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160525 |