CN101737009A - Liquid-gas phase drilling medium rotary table driving geosteering drilling system - Google Patents
Liquid-gas phase drilling medium rotary table driving geosteering drilling system Download PDFInfo
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- CN101737009A CN101737009A CN200910220303A CN200910220303A CN101737009A CN 101737009 A CN101737009 A CN 101737009A CN 200910220303 A CN200910220303 A CN 200910220303A CN 200910220303 A CN200910220303 A CN 200910220303A CN 101737009 A CN101737009 A CN 101737009A
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- 238000005553 drilling Methods 0.000 title claims abstract description 79
- 238000004891 communication Methods 0.000 claims abstract description 12
- 238000012545 processing Methods 0.000 claims abstract description 7
- 238000005259 measurement Methods 0.000 claims description 26
- 239000007788 liquid Substances 0.000 claims description 8
- 239000003381 stabilizer Substances 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 6
- 230000003321 amplification Effects 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 4
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- 238000007493 shaping process Methods 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims 1
- 239000012071 phase Substances 0.000 abstract description 9
- 239000007791 liquid phase Substances 0.000 abstract description 7
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 239000003208 petroleum Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 15
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 5
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- 238000005516 engineering process Methods 0.000 description 4
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- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012777 electrically insulating material Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
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- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
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- 230000008054 signal transmission Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The invention relates to a liquid-gas phase drilling medium rotary table driven geosteering drilling system, which comprises a ground part and a downhole part. The ground part consists of a derrick, a drill floor, a blowout preventer electrode, a ground electrode, an electric lead, a riser pressure sensor, a drill floor driller display, a drill floor communication cable, a signal processing interface box, a standard serial communication cable and a general computer system; the liquid-gas phase drilling medium rotary table driving geosteering drilling system provided by the invention can use pure liquid phase or pure gas phase or liquid phase mixed medium, can be used for rotary table guiding drilling and measuring natural formation gamma and resistivity while drilling, and is suitable for popularization and application in petroleum drilling engineering.
Description
Technical field:
The present invention relates to a kind of well system that is used for the oil drilling engineering, belong to the petroleum drilling technology class.
Background technology:
Adopting under balance pressure drilling technology probing horizontal well, extended reach well etc. is the needs of oil field development.Horizontal well and extended reach well begin have a high angle hole section to need directional drilling before enter oil reservoir from kickoff point (KOP), are the creeping into of horizontal segment that enters oil reservoir then.Generally in the high angle hole section with pure liquid phase drilling well medium (pure mud), desirable kit instrument is mud-pulse type wireless drilling measuring instrument and helicoid hydraulic motor; Adopt gas-liquid mixed media or pure gas phase drilling well medium after entering the horizontal segment of oil reservoir, corresponding kit instrument is that electromagnetic wave patterns wireless drilling measuring instrument adds air screw rod drill tool.If begin with regard to using gases drilling well medium and electromagnetic wave patterns wireless drilling measuring instrument drilling construction from kickoff point (KOP), then in the high angle hole section because the gas drilling cost far above conventional directional well drilling, makes this well section drilling cost increase.In the high angle hole section, if with pure liquid phase mud medium distribution magnetic wave type wireless drilling measuring instrument drilling construction, then the signal because of electromagnetic wave patterns wireless drilling measuring instrument is easily absorbed by the very strong mud of dielectric, influences the stability of signal.Though measurement is finished in the support of the measuring technique of available action complexity and employing large power supply, is to have increased cost equally for electromagnetic wave patterns wireless drilling measuring instrument.Finally increased drilling cost.And the wireless drilling measuring instrument adds in the drilling process of helicoid hydraulic motor drilling tool and is in to slide and creeps into state, and bore hole annulus drilling well medium can not get stirring under this state, and landwaste precipitates easily, produces bridging plug, thereby causes drilling failure.At net horizontal section,, ideally need GR and resistivity measurement are carried out in boring stratum, and conventional wireless drilling measuring instrument has only the GR parameter measurement, does not have resistance parameter to measure in order in the stratum, to pass through selectively.The problems referred to above cause harmful effect to the application of under balance pressure drilling technology.
Summary of the invention:
The object of the present invention is to provide and a kind ofly both can use that pure liquid phase also can be used pure or gas phase or gas-liquid mixed media, not only but the liquid gas phase drilling well medium rotating disk of rotatable disk directional drilling but also measurement while drilling stratum natural gamma and resistivity drove the geology NDS.
Technical scheme of the present invention is as follows: this kind well system comprises ground and down-hole two large divisions.Wherein above ground portion is made up of derrick, rig floor, preventer, preventer electrode, ground electrode, electric lead, standpipe pressure sensor, rig floor driller display, rig floor communication cable, signal Processing Interface case, standard serial communication cable and all-purpose computer; The main task of above ground portion is that parameter signal and the detected standpipe pressure signal of standpipe pressure sensor sent through preventer electrode and the detected down-hole of ground electrode reach signal Processing Interface case by electric lead and rig floor communication cable, drilling parameter signal after signal Processing Interface case is handled is sent to all-purpose computer via the standard serial communication cable and carries out calculation process again, and the result shows, stores and prints the most at last.Wherein another part drilling parameter is sent rig floor driller display for the rig floor reference.Another task of above ground portion is the Push And Release by pump, and the rotation of rotating disk and static the transmission to the down-hole are ordered, to change the mode that downhole instrument sends signal earthward.Change the benefit that sends aspect and be how fast biography of the major parameter of current urgent need can be passed, unwanted parameter can pass or not pass less, improves the favourable wellbore construction of signal efficiency.The method that transmits order to the down-hole is: first termination of pumping (or rotating disk is static) is more than one minute, turn on pump (or dial rotation) is 40 seconds then, and then termination of pumping (or rotating disk is static) 40 seconds, repeat twice continuous again turn on pump (or dial rotation) like this and be made as mode one, so continuous again turn on pump (or dial rotation) is made as mode two behind the triplicate, can carry out two or more mode layouts by that analogy.It is to pass through vibrating sensor that downhole instrument receives this signal, the underground vibrating sensor can both detect vibration signal when ground turn on pump or dial rotation, appoint by design owing to transmit the arranged mode of order, so downhole instrument is received corresponding order and will be sent signal earthward by the current command mode.
The down-hole part is made up of down-hole orientation with drilling instrument and down-hole orientation with drilling instrument, wherein, down-hole orientation with drilling instrument quickly is connected into down-hole orientation with drilling instrument urceolus with stabilizer with screw thread by the generator stub boring, what be linked in sequence from the top down in the tube is generator unit stator, generator amature, generator, motor, variable-speed motor, eccentric shaft, bearing, upper support ring, go up sphere link, trundle, lower peripheral surface link, lower support ring, hold out against volution, circumference pendulum tube and drill bit, wherein fixes with fastening bolt between variable-speed motor and the stabilizer.When the drilling well medium passes through generator stator rotor under surface pump drives, generator will produce electric energy, this electric energy sub-fraction is used for down-hole orientation with drilling instrument, major part is used for drive motor, motor is subjected to down-hole orientation with drilling instrument control that the high speed rotation is become low speed rotation by variable-speed motor, little torque is become large torque drive eccentric shaft, there is certain deviation in the axle center of eccentric shaft with main core and becomes a β angle, and the upper end engagement of putting tube by bearing and circumference, the lower end and the drill bit of circumference pendulum tube join, and the stage casing center of oscillation of circumference pendulum tube links by trundle and stabilizer.When rotating disk drive down-hole equipment rotated, stabilizer drove circumference pendulum tube by trundle and reaches the drill bit rotation of joining with it; If it turns to clockwise, rotating speed is N; On the other hand, the motor that controlled by down-hole orientation with drilling instrument reaches a circumference pendulum tube drive drill bit that joins with it by variable-speed motor driving eccentric shaft and makes circle swing, if the circle swing direction of drill bit is counterclockwise, the circumference slew rate is M, then when M=N, because the axle center of circumference pendulum tube becomes a β angle with the drill string axle center, and doing with well under the situation of reference, this β angle will remain unchanged on a certain direction of well, this spatiality is consistent in slip drilling process spatiality of living in the curved housing helicoid hydraulic motor with β angle, so this down-hole orientation with drilling instrument has orientating function.
Down-hole orientation with drilling instrument internal instrument part is made up of measurement of inductance instrument, GR measuring instrument, gas and vibration measuring set, orientation survey instrument, battery tube, mud pulse generator and electromagnetic impulse generator.Outside measurement of inductance stub boring quickly lower end and generator stub boring quickly screw thread link to each other, the upper end quickly quickly links to each other with screw thread with the orientation survey stub boring in proper order with the adjustment stub boring respectively, the measurement of inductance stub boring outside quickly is provided with four measurement of inductance coils in the axial direction, coil is fixed on the measurement of inductance stub boring by the coil insulation ring and quickly goes up, what measurement of inductance stub boring inside quickly linked to each other from top to bottom is gas and vibration measuring set, GR measuring instrument and measurement of inductance instrument, the lower end of measurement of inductance instrument links to each other with generator unit stator by electrically contacting ring, the side that electrically contacts ring is fixed on the generator stub boring with positioning bolt and quickly goes up, and gas links to each other with the battery tube with the orientation survey instrument respectively with centralizer by electrically contacting ring with the upper end of vibration measuring set.Wherein, the effect of battery tube is in no drilling well media flow, and drilling tool is under the static situation to be measured with the quiescent value of boring parameter.All measurement parameters are all gathered via the control of orientation survey instrument, and the control wave generator sends signal earthward.Be that control mud pulse generator or control electromagnetic impulse generator send signal earthward and depend on parameter with gas and vibration measuring set, just control the electromagnetic impulse generator when having gas to exist in the drilling well medium and send signal earthward when having detected the continuous shaking signal and having detected simultaneously, just control mud pulse generator when not having gas to exist in the drilling well medium and send signal earthward when having detected the continuous shaking signal and having detected simultaneously.The transmitting antenna of electromagnetic impulse generator by electromagnetic pulse device bottom stub boring quickly, lower electrode set bolt, insulation isolating cylinder, electromagnetic pulse device top stub boring quickly form with the upper electrode set bolt, one road signal of transmitting antenna connects electromagnetic pulse device top stub boring quickly by the upper electrode set bolt that is insulated the isolating cylinder isolation, and the drill string by screwed connection arrives well head, another road signal connects electromagnetic pulse device bottom stub boring quickly by the lower electrode set bolt that is insulated the isolating cylinder isolation, and arrives ground by the stratum.Mud pulse generator and electromagnetic impulse generator adopt modularization to connect, and connecting mode is by electrically contacting ring, and the two use both capable of being combined also can be used separately.Because the power that electromagnetic wave signal is propagated in the stratum is relevant with transmitting power and well depth, transmitting antenna is overhead near more under the fixed situation of transmitting power, then ground is acceptant more to signal, therefore for acceptance that can favourable electromagnetic wave signal, when well depth is dark, the electromagnetic impulse generator can be placed from the nearer position of well head, and the electromagnetic impulse generator links to each other with drill string than long distance quickly with the stub boring of bottom, signal and power supply pass through cable transmission, wherein the upper end of cable links to each other with the electromagnetic impulse generator with hanging joint on the cable, and the lower end of cable links to each other with mud pulse generator with the cable wet joint.Electromagnetic impulse generator and mud pulse generator have four kinds of combinations, first kind of combination is to use the electromagnetic impulse generator separately, second kind of combination is to use mud pulse generator separately, the third combination is that electromagnetic impulse generator and mud pulse generator are used in combination, but extend without downhole cable, the 4th kind of combination is electromagnetic impulse generator and mud pulse generator combination, but extends with the lengthening downhole cable between electromagnetic impulse generator and mud pulse generator.
Measuring apparatus by above configuration can obtain formation resistivity, stratum natural gamma and well geometric parameter three big parameters, helps controlling drilling tool electing property in the stratum of complexity and passes through; By any combination of electromagnetic pulse generator and mud pulse generator, the still wellbore construction continuously of replacing instrument and instrument that needn't make a trip under the situation of drilling well medium gas-liquid phase transformation helps like this reducing and reduces drilling cost when boring; Adopt the directional drill tool of rotating disk rotation can reduce the number of times that makes a trip with respect to the screw rod power drilling tool and reduce drilling cost, the more important thing is that rotating disk creeps into, drilling tool stirs drilling fluid, can prevent that rock from cutting precipitation and forming bridging plug, avoids drilling failure.
Liquid gas phase drilling well medium rotating disk provided by the invention drives the geology NDS and both can use pure liquid phase also can use pure gas phase or gas-liquid mixed media, not only but the rotatable disk guiding was crept into but also measurement while drilling stratum natural gamma and resistivity, was suitable in oil driller journey and applied.
Description of drawings: Fig. 1 is overall craft flow process of the present invention, working condition schematic diagram.
Fig. 2 is the ground signal processing FB(flow block).Fig. 3 is that ground cooperates change signal transmission working method FB(flow block) with the down-hole.Fig. 4, Fig. 5 are the time-amplitude coordinate diagram of two kinds of selection modes.Fig. 6 is the vertical section structural scheme of mechanism of the fixing supporting part of downhole tool instrument.Fig. 7,8,9,10 selects one of supporting to four vertical section structure schematic diagram for the downhole tool instrument.
The specific embodiment: enforcement of the present invention is illustrated below in conjunction with accompanying drawing.
As shown in Figure 1, the overall craft flow process of this well system is by derrick 1, rig floor 2, preventer 3, surface pipe 4, well 5, drill string 6, down-hole orientation with drilling instrument 7, down-hole orientation with drilling instrument 8, drill bit 9, the electromagnetic wave signal path 10, preventer electrode 13, ground electrode 14, electric lead 15, electric lead 16, standpipe pressure sensor 17, rig floor driller display 18, rig floor communication cable 19, signal Processing Interface case 20, standard serial communication cable 21, all-purpose computer 22 is formed, wherein, label " 11 " " 12 " is respectively electromagnetic wave electric current equipotential line and voltage equipotential line.
Shown in Fig. 6-10, down-hole orientation with drilling instrument by circumference pendulum tube 23, hold out against volution 24, lower support ring 25, lower peripheral surface link 26, trundle 27, go up sphere link 28, upper support ring 29, stabilizer 30, bearing 31, eccentric shaft 32, fastening bolt 33, variable-speed motor 34, generator stub boring quickly 35, motor 36, generator 37, generator amature 38, generator unit stator 39 form.Down-hole orientation with drilling instrument is by positioning bolt 40, electrically contact ring 41, measurement of inductance stub boring quickly 42, measurement of inductance coil 43, coil insulation ring 44, measurement of inductance instrument 45, GR measuring instrument 46, gas and vibration measuring set 47, centralizer 48, adjust stub boring 49 directions adjusting quickly bolt 50, orientation survey stub boring quickly 51, orientation survey instrument 52, battery tube 53, electromagnetic pulse device bottom stub boring quickly 54, lower electrode set bolt 55, insulation isolating cylinder 56, electromagnetic pulse device top stub boring quickly 57, upper electrode set bolt 58, electromagnetic impulse generator 59, mud pulse generator 60, weighted lever 61, weighted lever is adjusted stub boring quickly 62, cable wet joint 63, downhole cable 64, hanging joint 65 is formed on the cable.Wherein, the orientation survey stub boring quickly 51, adjust stub boring quickly 49, the measurement of inductance stub boring quickly 42, the generator stub boring quickly 35 all adopts no magnetic material, insulation isolating cylinder 56 adopts the electrically insulating materials making.
Ordinate P and R represent standpipe pressure and rotary speed respectively among Fig. 4 Fig. 5, and abscissa is represented the time, and wherein t0 and T2 represent that rotating disk stops or standpipe pressure is the zero time, and T1 represents rotating disk rotation or high time of standpipe pressure.
Fig. 2 is the FB(flow block) of ground signal.During work, a route preventer electrode 13 and ground electrode 14 inputs are sent micro-signal into bandpass filter and signal amplification A, propose the 5-35HZ useful signal, and the number of delivering letters is handled and analog-to-digital conversion after amplifying, and data signal is sent the ground general-purpose computing system again; The detected pressure signal of another route standpipe pressure sensor amplifies the B amplification through bandpass filtering and signal, send the ground general-purpose computing system again after analog-to-digital conversion; The parameter that will need again after the ground general-purpose computing system is handled the two paths of signals parameter to show at rig floor driller display is isolated and modulation through signal, transmit by the rig floor communication cable, reach signal demodulation and shaping, the signal after demodulation shows at rig floor driller display.
Claims (2)
1. a liquid gas phase drilling well medium rotating disk drives the geology NDS, comprise ground and down-hole two large divisions, it is characterized in that: above ground portion is by derrick (1), rig floor (2), preventer (3), surface pipe (4), well (5), drill string (6), down-hole orientation with drilling instrument (7), down-hole orientation with drilling instrument (8), drill bit (9), electromagnetic wave signal passage (10), preventer electrode (13), ground electrode (14), electric lead (15), electric lead (16), standpipe pressure sensor (17), rig floor driller display (18), rig floor communication cable (19), signal Processing Interface case (20), standard serial communication cable (21), general-purpose computing system (22) is formed, ground signal one route preventer electrode (13) and ground electrode (14) input are sent micro-signal into bandpass filtering and signal amplification A, the 5-35HZ useful signal is proposed, the number of delivering letters is handled and analog-to-digital conversion after amplifying, again data signal is sent ground general-purpose computing system (22), the detected pressure signal of another route standpipe pressure sensor (17) amplifies the B amplification through bandpass filtering and signal, send ground general-purpose computing system (22) again after analog-to-digital conversion; After handling the two paths of signals parameter, the ground general-purpose computing system must isolate and modulation through signal in the parameter that rig floor driller display (18) shows again, transmit by rig floor communication cable (19), reach signal demodulation and shaping, the signal after demodulation shows at rig floor driller display (18); The down-hole part is made up of down-hole orientation with drilling instrument and down-hole orientation with drilling instrument, wherein, quickly (35) and stabilizer (30) are connected into down-hole orientation with drilling instrument urceolus with screw thread to down-hole orientation with drilling instrument by the generator stub boring, generator unit stator (39) from the top down has been linked in sequence in the tube, generator amature (38), generator (37), motor (36), variable-speed motor (34), eccentric shaft (32), bearing (31), upper support ring (29), last sphere link (28), trundle (27), lower peripheral surface link (26), lower support ring (25), hold out against volution, (24) circumference pendulum tube (23) and drill bit (9), wherein fixing between variable-speed motor (34) and the stabilizer (30) with fastening bolt (33); Down-hole orientation with drilling instrument internal instrument part is made up of measurement of inductance instrument (45), GR measuring instrument (46), gas and vibration measuring set (47), orientation survey instrument (52), battery tube (53), mud pulse generator (60) and electromagnetic impulse generator (59).Outside measurement of inductance stub boring quickly (42) lower end and generator stub boring quickly (35) screw thread link to each other, the upper end respectively with adjust stub boring quickly (49) and orientation survey stub boring quickly (51) link to each other with screw thread in proper order, the measurement of inductance stub boring quickly outside of (42) is provided with four measurement of inductance coils in the axial direction, coil is fixed on the measurement of inductance stub boring quickly on (42) by coil insulation ring (44), quickly the inside of (42) links to each other the measurement of inductance stub boring from top to bottom is gas and vibration measuring set (47), GR measuring instrument (46) and measurement of inductance instrument (45), the lower end of measurement of inductance instrument (45) links to each other with generator unit stator (39) by electrically contacting ring (41), the side that electrically contacts ring (41) is fixed on the generator stub boring quickly on (35) with positioning bolt (40), and gas links to each other with battery tube (53) with orientation survey instrument (52) respectively with centralizer (48) by electrically contacting ring (41) with the upper end of vibration measuring set (47).
2. drive the geology NDS according to the described liquid gas phase of claim (1) drilling well medium rotating disk, it is characterized in that: electromagnetic impulse generator (59) and mud pulse generator (60) have four kinds of compound modes, first kind of combination is to use electromagnetic impulse generator (59) separately, second kind of combination is to use mud pulse generator (60) separately, the third combination is that electromagnetic impulse generator (59) is used in combination with mud pulse generator (60), but extend without downhole cable (64), the 4th kind of combination is that electromagnetic impulse generator (59) is used in combination with mud pulse generator (60), but extends with downhole cable (64) between electromagnetic impulse generator (59) and mud pulse generator (60).
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| CN2009102203033A CN101737009B (en) | 2009-12-01 | 2009-12-01 | Liquid-gas phase drilling medium rotary table driving geosteering drilling system |
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| CN2009102203033A CN101737009B (en) | 2009-12-01 | 2009-12-01 | Liquid-gas phase drilling medium rotary table driving geosteering drilling system |
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| CN101737009B CN101737009B (en) | 2012-11-14 |
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Address after: 124010 Xinglongtai, Liaoning Province, oil street, No. 96, No. Patentee after: Chinese Petroleum Group Changcheng Drilling Engineering Co., Ltd. Address before: 100724 No. 6, Kang Street, six, Xicheng District, Beijing Patentee before: Chinese Petroleum Group Changcheng Drilling Engineering Co., Ltd. |
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