CN2564751Y - Drilling parameter instrument - Google Patents

Abstract

The utility model relates to a drilling parameter appearance, be through the signal bus connection of signal pickup assembly with the drilling parameter signal that needs picked up through the junction box to signal isolation and conversion equipment, send signal processing apparatus to handle after keeping apart the conversion, calculate and show, the storage, can calculate hundreds of derived parameter, and well drilling data interface adopts visual design, can many picture display drilling production in-process required different parameters, parameter combination selects again, still effectively utilize computer resource to carry out real time monitoring system simultaneously, make operating personnel can accurately master the various information of well drilling in-process, and adopt remote automation technique, realize remote monitoring and control, provide the foundation for the drilling site decision-making, and the safety is guaranteed, high-quality well drilling production.

Description

Drilling parameter measuring instrument

Technical field: the utility model relates to a kind of drilling parameter measuring instrument, belongs to oil drilling site operation parameter acquisition and processing technology field, especially the drilling parameter measuring instrument of in the drilling well manufacturing process drilling parameter being monitored in real time and controlling.

Background technology: in the prior art, the real-time device for monitoring to drilling parameter in the drilling well manufacturing process generally by the primary instrument image data, shows with secondary meter.Primary instrument is a sensor groups, comprise: drawworks sensor, weight on hook sensor, standpipe pressure sensor, rotary speed sensor, pump are towards sensor, torque sensor and volume sensor etc., secondary meter is the instrument of mechanical device, as pressure meter etc., its workflow is: sensor pickoff signals, signal conversion, secondary meter show.There is following defective in these methods: (1) display parameters are few, and precision is low, and operating personnel's available information is few, can not satisfy the needs that instruct site operation; (2) can't realize remote monitoring and control.

Goal of the invention: it is few that the purpose of this utility model is to overcome in the prior art display parameters, and the defective that precision is low designs the drilling parameter measuring instrument of in a kind of oil drilling site operation process drilling parameter being monitored in real time and controlling.

Summary of the invention: the utility model purpose realizes by following scheme:

The utility model is made up of signal pickup device, chromacoder and signal processes and displays device, wherein:

1, signal pickup device: be made up of one group of sensor, comprise two kinds of analog quantity and digital quantities, signal pickup device is connected to chromacoder with the required drilling parameter signal that picks up by signal bus;

2, chromacoder is a kind of isolation and conversion equipment, isolation module for standard, comprise two kinds of analog quantity and digital quantities, wherein the analog quantity isolation module is converted to the A/D converter that voltage signal is delivered to signal processing apparatus with the current signal that the analog sensor group transmits; After isolating, the Transistor-Transistor Logic level signal that the digital quantity isolation module transmits the digital sensors group delivers to the counting channel of signal processing apparatus A/D converter;

3, signal processing device is changed to a cover computer system, receives the discernible data signal that A/D converter is handled, and handles, calculates and show, stores.

Isolation and conversion equipment, signal processing apparatus are installed in the same explosion-proof tank, and touch-screen is positioned at the front panel end of explosion-proof tank, and explosion-proof display is installed in the driller working region.

After the signal that the utility model picks up sensor groups is isolated and is changed, form the accessible data signal of computer, can calculate and derive from up to a hundred of parameter, and The visual design is adopted at the well data interface, get final product required different parameters in many pictures display well manufacturing process, can carry out parameter combinations again selects, also can effectively utilize computer resource simultaneously, realize that distributed treatment, real-time monitoring system make operating personnel can accurately grasp various information in the drilling process, and in wired or wireless mode, adopt the remote automation technology, realize remote monitoring and control,, guaranteed safety for the situ of drilling well decision-making provides foundation, the drilling well production of high-quality.

Accompanying drawing and brief description:

Six, the specific embodiment:

Fig. 1 the utility model structural representation; Wherein:

Fig. 2 the utility model analog signals is gathered and is handled wiring diagram;

Fig. 3 the utility model winch signal capturing and processing wiring diagram;

Fig. 4 the utility model turntable rotating speed/pump stroke signal collection and processing wiring diagram.

Wherein: 1: signal pickup device 2: the junction box 3: explosion-proof tank 4: signal isolation and conversion equipment 5: signal processing apparatus 6: anti-explosion display 7: remote supervisory and controlling equipment 8: analog sensor 9:AM-T-14P/U5 analog quantity isolation module 10: power module 11:A/D converter 12: acquisition server bottom 13: acquisition server master platform 14: drawworks sensor 15:EBI EM-DRI-IS-5-RTB-7272-24V/V digital quantity isolation module: 16:A/D converter counting channel 17: rotary speed/pump rushes sensor 18:AM-TU/D-4 digital quantity isolation module.

Below in conjunction with accompanying drawing the utility model is described further:

As shown in Figure 1, the utility model is realized by following scheme:

1, signal collection system (1) is made up of one group of sensor, comprises two kinds of analog quantity and digital quantities, and signal collection system (1) is connected to signal with the required drilling parameter signal that picks up by junction box (2) signal bus and isolates and conversion equipment (4);

2, isolation and conversion equipment (4) are the isolation module of standard, comprise two kinds of analog quantity and digital quantities, and wherein the analog quantity isolation module is converted to the A/D converter that voltage signal is delivered to signal processing apparatus (5) with the current signal that the analog sensor group transmits; After isolating, the Transistor-Transistor Logic level signal that the digital quantity isolation module transmits the digital sensors group delivers to the counting channel of signal processing apparatus (5) A/D converter;

3, signal processing apparatus (5) is a cover computer system, receives the discernible data signal that A/D converter is handled, and handles, calculates and show, stores.

Isolate with conversion equipment (4), signal processing apparatus (5) being installed in the same explosion-proof tank (3), touch-screen is positioned at the front panel end of explosion-proof tank (3), and explosion-proof display (6) is installed in the driller working region.

Remote supervisory and controlling equipment (7) can be a plurality of remote terminals, again can and signal processing apparatus (5) belong to a computer server.

Fig. 2 gathers for the utility model analog signals and handles wiring diagram.Analog sensor (8) comprises volume, weight on hook, standpipe pressure, TORQ, rate of discharge, hydrogen sulfide sensor, this group sensor is the two-wire system of standard, all analog sensors (8) all are the two-wire system sensors, one end is+the 24V power supply that the other end is the 4-20mA current signal.Analog sensor (8) is the signal transition of picking up that 4～20mA current signal of standard is sent to the analog quantity isolation module (9) that model is AM-T-14P/U5, the voltage signal that the unification of 4～20mA signal is transformed to 0～5V is sent to acquisition server bottom (12) acquisition process of A/D converter (11) for signal processing apparatus (5), is converted to separately physical index by the acquisition server master platform (13) of signal processing apparatus (5) at last.

The utility model has 2 A/D converters, has 32 paths, and each sensor all has oneself independently signalling channel.A/D converter (11) is input as voltage signal, is output as binary code, carries out following computing by acquisition server master platform (13):

Concerning 12 A/D, the length of this binary number is 12, and for full scale+5V, 12 is that 1 D value is that 4095,0～5V voltage range D value representation can calculate with following formula entirely:

(VI is actual measurement magnitude of voltage, unit: V) to D value=4095*VI/5V

To 4mA (corresponding to physical quantity 0), 20mA (corresponding to the maximum value of physical quantity) demarcates, and just can obtain a calibration curve.Any D value of coming sampling can go out the respective physical value by inverse by this curve like this.For example the standpipe pressure sensor is an analog sensor, output signal is 4-20mA, deliver to signal processing apparatus (5) acquisition server bottom (12) through analog quantity isolation module (9), A/D converter (11), acquisition range is 0-5V, corresponding to the 0-50MPa of physical quantity.The standpipe pressure passage D value of supposing the acquisition server collection is 2000, then calculates its magnitude of voltage by the acquisition server master platform (13) of signal processing apparatus (5) to be:

VI＝D*5V/4095＝2000*5/4095＝2.44V

Therefore corresponding standpipe pressure physical quantity should be:

Standpipe pressure (MPa)=(2.44V/5V) * 50MPa=24.4MPa

Accompanying drawing 3 is the utility model winch signal capturing and processing wiring diagram, as shown in Figure 3, drawworks sensor (14) is the four-wire system sensor, its power end V+, V-and two paths of signals A, B receives respectively on the corresponding end that model is an EBI EM-DRI-IS-5-RTB-7272-24V/V isolation module (15), power module (10) provides required power supply, two groups of signals that isolation module (15) is sent drawworks sensor (14) here are converted to level signal, deliver to the counting channel of A/D converter (16), gather by acquisition server bottom (12) then, and finally calculate by acquisition server master platform (13), be treated to the hook height displacement, thereby obtain bit location, well depth and other derive from parameter.

Drawworks sensor (14) is installed on the winch drum shaft, and when winch drum rotated, the output of sensor (14) just obtained having two group pulse signals of 90 ° of phase differences, and it represents the angular displacement of winch drum.Winch drum rotates a circle, 24 pulse signals of sensor output.Utilizing drawworks sensor (14) is the quantity of pulse with the angular transformation that cylinder rotates, by isolation module (15) pulse separation of two-way phase phasic difference 90 degree that obtain from drawworks sensor (14) is numeration pulse and direction control level (being uplink and downlink), record winch drum rotating process, through A/D conversion numeration passage, the pulse signal of gathering is delivered to the acquisition server bottom (12) of signal processing apparatus (5), by acquisition server master platform (13), carry out computing.Computational process is as follows: pulse sum when determining on the cylinder each layer end, and compare with gathering the pulse sum that comes, determine the outermost number of plies on the present cylinder, according to the judged result of the number of plies, the pulse sum is scaled the present height of hook.Variable quantity according to twice collection hook height can calculate well depth and bit location.

Design formulas

Enclose whenever winch drum rotates one, then hook displacement is: $\mathrm{Hx}=\frac{\mathrm{\π}\×\mathrm{Dx}}{M}------\left(1\right)$ In the formula: Hx--hook displacement (cm)

Dx--layer of actual coiling diameter (cm)

M--overhead traveling crane gear ratio (big number of strands) is established moving 360 degree of drawworks sensor revolution, and phase discriminator can be exported n pulse, and then the relation of hook displacement and umber of pulse is as follows: $\mathrm{Kx}=\frac{n}{\mathrm{Hx}}-------\left(2\right)$ (1) get with (2) are comprehensive: $\mathrm{Kx}=\frac{M\×n}{\mathrm{\π}\×\mathrm{Dx}}------\left(3\right)$ In the formula: Kx is in a certain number of plies, and hook moves 1 centimetre, the umber of pulse of phase discriminator output.When reality was used, the every increase one deck of big rope was equivalent to the actual coiling diameter increment Delta of cylinder D on the cylinder.Then $\mathrm{\ΔD}=2\sqrt{d^2-{\left(\frac{d}{2}\right)}^2}=\sqrt{3}d$ In the formula: d is big rope diameter: when hook is raised to peak from 0, big rope will be wound into layer 5 from first floor on the cylinder.Its corresponding actual coiling diameter then is: D ₁=D ₀+ d $D_2=D_1+\sqrt{3}d$ $D_3=D_2+\sqrt{3}d$ $D_4=D_3+\sqrt{3}d$ $D_5=D_4+\sqrt{3}d$ Wherein: D ₀For winch rolls footpath simply, therefore, the Kx coefficient corresponding to 1 to 5 layer is arranged $K_1=\frac{M\×n}{\mathrm{\π}\×D_1}------K_2=\frac{M\×n}{{\mathrm{\π}\×D}_2}$ $K_3=\frac{M\×n}{\mathrm{\π}\×D_2}------K_4=\frac{M\×n}{{\mathrm{\π}\×D}_4}$ $K_5=\frac{M\×n}{{\mathrm{\π}\×D}_5}$ Because when lay winding wire ropes, the cylinder first floor always twines some circles, in advance in order to guarantee safety.Promptly when hook height equals zero, also remain the wire rope of a fixing turn on the cylinder, we are defined as T to these wire rope, and these wire rope can not produce umber of pulse all the time when cylinder rotates.

(1) the every layer umber of pulse that (a whole layer) can send: $K_0=\mathrm{INT}(\frac{L}{d}+0.5)\×n$

Wherein: K ₀Sent out umber of pulse by a whole layer

L is a drum length

N is the umber of pulse of cylinder revolution moving one all phase discriminator output

D is big rope diameter

INT () is a bracket function

(2) umber of pulse do not sent of first floor:

K ₆＝T×n

In the formula: K ₆For first floor does not send pulse

T is hook height big fake number of residue on the cylinder when being zero

N is the umber of pulse of cylinder revolution moving one all phase discriminator output

(3) when each layer finished, the umber of pulse of sending out was N:

N ₁＝K ₀-K ₆

N ₂＝K ₀+N ₁

N ₃＝K ₀+N ₂

N ₄＝K ₀+N ₃

N ₅＝K ₀+N ₅

(4) judging that layer becomes judges a layer position sequence, promptly gathers present pulse sum (i.e. 16 count values) and compares to N5 with N1 and see that it drops between those two values, can judge in that one deck.

According to present layer position, we can obtain the corresponding hook height of pulse sum.

(1) every layer of H of hook height when finishing $H_1=\frac{N_1}{K_1}$ $H_2=H_1+\frac{K_0}{K_2}$ $H_3=H_2+\frac{K_0}{K_3}$ $H_4=H_3+\frac{K_0}{K_4}$ $H_5=H_4+\frac{K_0}{K_5}$ Wherein: H ₁-H ₃Hook height during for every layer of end.(2) determine that when the number of plies in a certain concrete layer position, the pairing hook height of pulse is at the pairing hook height of certain one deck umber of pulse:

First floor $H=\frac{X}{K_1}$

The second layer $H=H_1+\frac{X-N_1}{K_2}$

The 3rd layer $H=H_2+\frac{X-N_2}{K_3}$

The 4th layer $H=H_3+\frac{X-N_3}{K_4}$

Layer 5 $H=H_4+\frac{X-N_4}{K_5}$

Wherein: H is present hook height, unit: cm

X is for gathering the pulse sum in gained 16 digit counters.

(3) because used unit be a rice, and the unit of H be centimetre in the above-mentioned formula, could export through conversion, and any depth system of while all has certain systematic error, and requirement can both be proofreaied and correct at any time, so can get: $H_m=B\×\frac{\mathrm{INT}\left(H\right)}{100}$

In the formula: Hm is for proofreading and correct the back hook height, unit: rice

B is the system compensation coefficient.

It is Hm that each collection can both be calculated hook height, is Hm1 if gathered the gained hook height last time, and displacement is then arranged:

Lo＝Hm-Hm1

Wherein: Io is twice collection hook height displacement variable.

1. if Lo＞0 is then represented up

It is constant that bored position-Lo well depth bit location=last time

2. as if Lo=0, then expression does not have displacement, and well depth and bit location are all constant

3. if Lo＜0 is then represented descending

(1) when bit location equals well depth

Well depth=well depth+ABS last time (Lo) bores position=well depth

(2) when bit location is not equal to well depth

It is constant that bored position+ABS (Lo) well depth bit location=last time

In the formula, ABS () is an ABS function

Hereto, we can be transformed into bit location and well depth to the rotational angle of cylinder, have finished the change of the degree of depth and have sent.

Fig. 4 is the utility model rotary speed/pump stroke signal collection and processing wiring diagram.Pump dashes with rotary speed sensor (17) and uses with a kind of two-wire system sensor as shown in Figure 4, comprise that three pumps are towards sensor and a speed probe, isolation module (18) is that a model is AM-T-U/D-4 digital quantity conditioning port plate, integrated No. 1 pump dashes, No. 2 pump dashes, No. 3 pumps dash the signal that reaches rotary speed 4 tunnel identical sensors (17) and handle, its effect is to be 0-5V Transistor-Transistor Logic level signal with the sensor signal consolidation, deliver to A/D capture card counting channel (16) counting, deliver to acquisition server bottom (12) collection then, finally carry out computing by acquisition server master platform (13).

The drilling fluid pump action is (perhaps dial rotation one circle) once, then goes up the height that produces a level signal at sensor (17) and changes, and computer is gathered this variation by the counting channel (16) of A/D converter, thereby calculates the strokes per minute and the rotating speed of per minute.

The utility model can use the remote automation technology, based on other agreements of ICP/IP protocol or network support, adopts distributed proccessing, introduces the notion of acquisition server and remote terminal in oil drilling field data processing technology field.Acquisition server bottom (12) is the common interface part, is installed on collection and the process computer, is responsible for gathering primary signal, sends to distance host by netting twine and calculates, handles.Distance host can belong to a computer together with acquisition server, can be any remote terminal again, and the information after it will be handled sends it back the common interface part, is published to each remote terminal by the common interface part by network then.Each remote terminal receives common interface part (bottom) information releasing, the information of oneself partly can be distributed to other remote terminal by common interface again.

Claims (3)

1, a kind of drilling parameter measuring instrument comprises drilling parameter signal pickup device, chromacoder, processing and display unit, it is characterized in that:

(1), signal pickup device (1) is made up of one group of sensor, comprises two kinds of analog quantity and digital quantities, signal collection system (1) is connected to chromacoder (4) with the required drilling parameter signal that picks up by junction box (2) signal bus;

(2), chromacoder (4) is an isolation and a conversion equipment, isolation module for standard, comprise two kinds of analog quantity and digital quantities, wherein the analog quantity isolation module is converted to the A/D converter that voltage signal is delivered to signal processing apparatus (5) with the current signal that the analog sensor group transmits; After isolating, the Transistor-Transistor Logic level signal that the digital quantity isolation module transmits the digital sensors group delivers to the counting channel of signal processing apparatus (5) A/D converter;

(3), signal processing apparatus (5) is a cover computer system, receive the discernible data signal that A/D converter is handled, and handle, calculate and show, store.

2, drilling parameter measuring instrument according to claim 1, it is characterized in that isolating and be installed in the same explosion-proof tank (3) with conversion equipment (4), signal processing apparatus (5), touch-screen is positioned at the front panel end of explosion-proof tank (3), and explosion-proof display (6) is installed in the driller working region.

3, drilling parameter measuring instrument according to claim 1 and 2 is characterized in that signal processing apparatus (5) can be a computer server, can also connect a plurality of remote terminals or monitoring equipment.

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