CN103065538B - Indoor drilling accident and well control technology simulation test device - Google Patents

Indoor drilling accident and well control technology simulation test device Download PDF

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Publication number
CN103065538B
CN103065538B CN201210558909.XA CN201210558909A CN103065538B CN 103065538 B CN103065538 B CN 103065538B CN 201210558909 A CN201210558909 A CN 201210558909A CN 103065538 B CN103065538 B CN 103065538B
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China
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drilling
drilling fluid
valve
simulation
pressure
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CN201210558909.XA
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CN103065538A (en
Inventor
熊毅
樊建春
温东
王强
赵坤鹏
詹先觉
张晓昊
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China University of Petroleum Beijing CUPB
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China University of Petroleum Beijing CUPB
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Abstract

The invention discloses an indoor drilling accident and well control technology simulation test device which comprises two portion, namely, a blowout simulation test platform and a hydraulic circular control system. The blowout simulation test platform comprises simulation components such as a derrick, an anti-blowout device unit, a sleeve tube, a drilling tool and a faucet. The hydraulic circular control system comprises components such as a flow gauge, a pressure gauge and an electronic control valve and simulation to a typical drilling accident and a relative well control measure can be achieved. A simulation device is formed in a laboratory and the whole device is located on the ground without the requirement for drilling operation. An organic glass tube is adopted to design the simulation device, so that oil gas transport property in the sleeve tube can be directly observed in the process of accident simulation. Oil gas flow in the process of the accident is simulated through the hydraulic circular system, so that the process of generation and development of a blowout accident can be simulated really.

Description

A kind of indoor drilling failure and well control technical modelling test unit
Technical field
The present invention relates to drilling failure simulation and well control technical training system, more particularly, be a kind ofly can be arranged on indoorly, can realize circulation of drilling fluid, the normal sedimentation of drilling fluid, leakage, suction, overflow, oil are invaded to the test unit that the conventional drilling accident flow process such as blowout, gas cut blowout and corresponding well control technology are simulated.
Background technology
Drilling failure is one of important accident form affecting oil gas safety in production, and along with the enforcement of oil field Great developing strategy, the generation of drilling failure is more and more frequent, endangers increasing.Therefore, petroleum industry is more and more paid attention to drilling failure and corresponding well control technical research thereof.Drilling failure and well control technical modelling device are exactly for reducing drilling failure occurrence frequency, increase well control success ratio, reduce causality loss and the experimental provision developed: on the one hand, can be for researching and analysing drilling failure generation flow process, Improvement well control technology provides experiment condition; On the other hand, can be familiar with drilling failure flow process for on-the-spot post employee, improve well control technology warfighting capabilities training condition is provided.
Traditional drilling failure and well control technical modelling test unit are mainly divided into two large classes: a kind of is Virtual Experiment Platform Based, builds various drilling failure down-hole pressure equilibrium states by computer simulation, by virtual reprogramming parameter simulation well control technology realization; Another kind of is experiment well analog platform, and by building rice up to a hundred dark experiment well simulation drilling failure and corresponding well control technology, experiment well platform has the structure almost identical with true Oil/gas Well, and just in stratum, oil-air pressure adopts oil pump and air compressor to provide.
But Virtual Experiment Platform Based is familiar with to participation start-up intuitively, all pressure condition process of establishing are all to realize by program, cannot intuitively reflect its process of establishing, and the sense of well control technical operation is not strong; Experiment well platform builds due to needs the experiment well environment that is similar to true well, exists investment larger, is difficult to universal major defect, and because oil gas state in down-hole casing cannot directly be observed, not strong to the displaying of drilling failure process of establishing.
Visible, existing drilling failure and well control technical modelling platform are not well positioned to meet the demand of existing drilling failure and the training of well control technical modelling, need a kind of drilling failure and well control engineering test device that can make up above-mentioned shortcoming badly.
Summary of the invention
The object of the invention is to, for the weak point of existing drilling failure analogue test platform, provide a kind of can be arranged on indoor, without well-digging operation, can provide visual Simulation, drilling failure and well control technical modelling test unit cheaply to common drilling failure.
The present invention realizes by following technical scheme: a kind of indoor drilling failure analogue means, comprise: drilling failure simulation test bench and hydraulic system, described drilling failure simulation test bench comprises: drilling tool traction electric machine group, drilling tool assembly, gas outlet, upper joint flange, ground simulation plate, lower joint flange, organic glass sleeve pipe, thribble board simulating bench and derrick simulating bench, described drilling tool traction electric machine group is fixed on derrick simulating bench, and be connected with drilling tool assembly by gear train, described drilling tool traction electric machine group drives raising and decentralizing of described drilling tool assembly by rotating, described upper joint flange is fixed on described thribble board simulating bench, and described gas outlet runs through described upper joint flange, it is characterized in that: described organic glass sleeve pipe is fixedly installed on described thribble board simulating bench by described upper joint flange and described lower joint flange, described drilling failure simulation test bench also comprises separate multiple drilling fluids import and export, described multiple drilling fluid is imported and exported and is connected described hydraulic system with described hydraulic system by the adjusting control of pump and valve, in described analogue means, build different pressure equilibrium conditions, to realize the simulation to gas blowout accident flow process and corresponding well control technology.
According to another aspect of the present invention, the pipe thickness of organic glass sleeve pipe and internal diameter design meet the strength criterion of pressure vessel.
According to another aspect of the present invention, described lower joint flange adopts stainless steel, 6 drilling fluids that are connected is set on lower joint flange imports and exports with described hydraulic system.
According to another aspect of the present invention, described drilling tool assembly comprises square kelly, drill collar, square kelly drill collar connector, guide blot, drilling rod, drill bit, spring, wherein said square kelly connects drill collar, and be connected with drilling rod by square kelly drill collar connector, drilling rod connects drill bit, wherein said square kelly, drill collar, drilling rod is hollow, square kelly top arranges drilling fluid inlet, this drilling fluid inlet is that described multiple drilling fluid one of is imported and exported, drilling fluid enters in organic glass sleeve pipe by the perforate of drilling rod lower end after entering this drilling fluid inlet and flowing to drilling rod inside, extract mouth out by the drilling fluid arranging on lower joint flange and be drawn out of organic glass sleeve pipe, it is that described multiple drilling fluid one of is imported and exported that this drilling fluid is extracted mouth out.
According to another aspect of the present invention, described drilling tool assembly also comprises pressure ring, pressure ring is between square kelly drill collar connector and drilling rod, sealing drilling tool assembly and organic glass sleeve pipe, in the process that drilling tool assembly is moved up and down, do not destroy the pressure equilibrium of having set up in organic glass sleeve pipe, wherein said pressure ring main body is stainless steel, and it arranges sealing rubber ring around.
According to another aspect of the present invention, guide blot is threaded connection and is fixed on pressure ring, and through square kelly drill collar connector, for pressure ring provides guide effect with respect to the axially-movable of drilling rod; Spring fitting is between square kelly drill collar connector and pressure ring, be full of when organic glass bushing forms stable pressure environment and ensure that spring does not compress completely at drilling fluid, make to stay certain stroke space between square kelly drill collar connector and pressure ring, provide buffering link for transferring drilling rod, prevent drilling tool traction electric machine group overload load and burn, ensureing that drilling tool assembly can make a trip at pressure environment Imitating simultaneously.
According to another aspect of the present invention, described hydraulic system comprises: fuel tank, liquid level gauge, drilling fluid front pump, reduction valve, throttle solenoid valve, retaining valve, pressure transducer, liquid flowmeter, proportional pressure control valve, air compressor, gas meter, surplus valve, leakage-free solenoid valve, safety relief valve, cooling gas check valve, gas pressure reducer, needle-valve, gas throttling valve, drilling fluid drawing pump, safety overflow valve, oil reservoir simulation pump and nozzle.
The control method of indoor drilling failure of the present invention and well control technical modelling device is achieved through the following technical solutions:
Regulate and control drilling fluid injection flow by the drilling fluid front pump in hydraulic system and first throttle solenoid valve, regulate and control drilling fluid extraction flow by the drilling fluid drawing pump in hydraulic system and second section manifold solenoid valve, described in first-class flowmeter measurement, drilling fluid injects flow, described in second flowmeter measurement, drilling fluid is extracted flow out, when first flow meter when identical, forms the drilling fluid of stable circulation with the second flowmeter registration in organic glass sleeve pipe.
According to another aspect of the present invention, by being set in hydraulic system, surplus valve oil pressure relief simulated formation bears pressure, tensimeter is set in hydraulic system, measure drilling liquid pressure in organic glass sleeve pipe, in the time that described drilling liquid pressure is greater than described oil pressure relief, simulated formation presses off, and leakage accident occurs.
According to another aspect of the present invention, by regulating the 3rd throttle solenoid valve simulated formation cavity volume, drilling fluid liquid level decline simulation drilling fluid sedimentation in described organic glass sleeve pipe, by regulating first throttle solenoid valve, increase drilling fluid and inject flow, simulation drilling fluid sedimentation accident.
According to another aspect of the present invention, while carrying described drilling rod fast, described organic glass casing space internal pressure declines and forms negative pressure, and the retaining valve arranging in hydraulic system is opened, and outside air enters described organic glass casing annulus simulation suction accident by retaining valve.
According to another aspect of the present invention, by controlling the oil reservoir simulation pump in hydraulic system, and regulate the 4th throttle solenoid valve, the first reduction valve simulation is controlled oil bearing reservoir pressure in stratum and is invaded described organic glass sleeve pipe, by the pressure of the first reduction valve being set higher than the pressure of the second reduction valve, simulation blowout co simulate; By closing the 5th throttle solenoid valve simulation creeping into closing of the preventer that arranges on co simulate test-bed, make gas blowout accident controlled.
According to another aspect of the present invention, by controlling air compressor, adjustments of gas reduction valve, gas throttling valve simulation is controlled gas bearing reservoir pressure in stratum and is invaded described organic glass sleeve pipe, simulation gas cut process.
Brief description of the drawings
Fig. 1 is drilling failure of the present invention and well control technical modelling test unit overall diagram;
Fig. 2 is the hydraulic cycle control system diagram of drilling failure of the present invention and well control technical modelling test unit;
Fig. 3 is drilling tool assembly structural drawing of the present invention;
Fig. 4 is circulation of drilling fluid process simulation schematic diagram of the present invention;
Fig. 5 is the normal settling process simulation of drilling fluid of the present invention schematic diagram;
Fig. 6 is leakage process simulation schematic diagram of the present invention;
Fig. 7 is aspiration procedure simulation schematic diagram of the present invention;
Fig. 8 is flooding process simulation schematic diagram of the present invention;
Fig. 9 is blowout well kick process simulation schematic diagram of the present invention;
Figure 10 is gas cut blowout process simulation schematic diagram of the present invention.
Drawing reference numeral:
1, drilling tool traction electric machine group 2, drilling tool assembly 3, gas outlet
4, upper joint flange 5, annular preventer 6, single ram preventer
7, ground simulation plate 8, lower joint flange 9, organic glass sleeve pipe
10, thribble board simulating bench 11, derrick simulating bench 12, square kelly
13, drill collar 14, square kelly drill collar connector 15, guide blot
16, pressure ring 17, drilling rod 18, drill bit
19, spring
Embodiment
Below in conjunction with accompanying drawing, describe the specific embodiment of the present invention in detail, the present invention is not limited by following case study on implementation, can determine concrete embodiment according to technical scheme of the present invention and actual conditions.In description, some term used herein is only for reference, and do not mean that and limit.
Indoor drilling failure and well control technical modelling device, it is made up of drilling failure simulation test bench and hydraulic system.As shown in Figure 1, drilling failure simulation test bench according to land oil drilling platform carry out designs simplification, size is dwindled design, install for the ease of flooring, will simulate surface uplift by construction platform, make whole down-hole casing section be positioned at top, flooring.It comprises: be fixed on the drilling tool traction electric machine group 1 on derrick simulating bench 11, adopting drilling tool traction electric machine group 1 to replace traditional cable mechanism to realize drilling tool makes a trip, can overcome the simulation drilling tool inadequate shortcoming of conducting oneself with dignity, drilling tool assembly 2, traction electric machine group 1 is connected by gear train with drilling tool assembly 2, wherein, gear train can be connected with traction electric machine group 1 there is externally threaded rod member and the female external member of the tool being connected with drilling tool assembly 2 composition, drive raising and decentralizing of drilling tool assembly 2 by the rotating of traction electric machine group 1.Simulated experiment stand also has upper joint flange 4, it is fixed on thribble board simulating bench 10, and gas outlet 3 runs through joint flange 4, in order to the mixed gas being made up of inflammable gass such as rock gas, methane, hydrogen producing in collection treatment of simulated process.Ground simulation plate 7 tops are provided with annular preventer 5 and single ram preventer 6, and preventer also can be by single disc, double disc, annular and rotary blowout preventer any one and several being used in combination.Be fixedly connected on the lower joint flange 8 on upper joint flange 4 by many fixed legs, lower joint flange 8 adopts stainless steel, for the ease of observing in co simulate process, adopt organic glass sleeve pipe 9 to simulate actual sleeve pipe, internal diameter and the thickness of applying pressure container standard to organic glass sleeve pipe designs check, organic glass sleeve pipe 9 is fixedly installed on thribble board simulating bench 10 by upper joint flange 4 and lower joint flange 8, adopt organic glass sleeve pipe can make user can be clearly seen that the state of drilling failure, the pipe thickness of organic glass sleeve pipe 9 and internal diameter design meet the strength criterion of pressure vessel, simulated experiment stand also comprises 9 drilling fluids import and export, on wherein said drilling tool assembly, be provided with the first drilling fluid inlet and the second drilling fluid/air and extract mouth out, on described lower joint flange, be provided with the 3rd drilling fluid and extract mouth out, the 4th drilling fluid inlet, the 5th air Injection mouth, the 6th drilling fluid is extracted mouth out, the 7th drilling fluid is extracted mouth out, the 8th air Injection mouth, the 9th air Injection mouth is set on described upper joint flange, these 9 drilling fluids are imported and exported and are connected with hydraulic system by high-pressure hose, described hydraulic system is by the adjusting control of pump and valve, in described simulation test bench, build different pressure equilibrium conditions, to realize the simulation to gas blowout accident flow process and corresponding well control technology.Drilling fluid is imported and exported separate, and here separate refer to that each drilling fluid is imported and exported and can independently be controlled, and can import and export the collaborative work that combines with other drilling fluid, to simulate different drilling failures.
In order to simulate multiple drilling failure and corresponding well control technology thereof, the present invention has designed hydraulic system as shown in Figure 2, by each electromagnetic valve, flowmeter, manometric associated working, control organic glass cover overpressure equilibrium state, realize each drilling failure and corresponding well control technical modelling thereof, as shown in Figure 2, described hydraulic system comprises: the drilling fluid injection pump 3 and the reduction valve 4.1 that are linked in sequence, throttle solenoid valve 5.1, retaining valve 6.1, high-precision pressure sensor 7.1, flowmeter 8.1, and be 1. connected with drilling fluid inlet, being used for controlling drilling fluid injects, drilling fluid/air is extracted mouth out and is 2. connected successively proportional pressure control valve 9, throttle solenoid valve 5.7 and nozzle 26, oil invade or gas cut process in can observe gas blowout accident by nozzle 26, simulate preventer stack by adjusting joint manifold solenoid valve 5.7 and close, control gas blowout accident.Drilling fluid is extracted 3. connecting joint manifold solenoid valve 23, drilling fluid drawing pump 22, liquid flowmeter 8.2, high-precision pressure sensor 7.2, throttle solenoid valve 5.2 successively of mouth out, for the extraction of drilling fluid; 4. connecting fluid flowmeter body 8.3, high-precision pressure sensor 7.3, retaining valve 6.2, throttle solenoid valve 5.3, reduction valve 4.2 and oil reservoir simulation pump 25 successively of drilling fluid inlet, invades for simulated oil stressor layer; 5. air Injection mouth connects cooling gas check valve 18, gas meter 12, low precision pressure sensor 11, gas throttling valve 21, needle-valve 20, gas pressure reducer 19 and air compressor 10 successively, in order to simulate gas cut; Drilling fluid is extracted mouth out and is 6. connected successively safety overflow valve 24, liquid flowmeter 8.4, tensimeter 14.1, throttle solenoid valve 5.5, in order to simulated formation cavity volume; Drilling fluid is extracted 7. connecting fluid flowmeter body 8.5, tensimeter 14.2, surplus valve 13, throttle solenoid valve 5.6 successively of mouth out, in order to simulate leakage accident; 8. air Injection mouth, connects retaining valve 15, in order to simulate suction accident; Air Injection mouth is leakage-free solenoid valve 16 in parallel and safety relief valve 17 9., and in the time that analogue means is worked, Open valve is communicated with air, prevents that analogue means internal pressure is too high; Wherein, drilling fluid front pump 3, throttle solenoid valve 5.2,5.5,5.6, oil reservoir simulation pump 25 are connected with fuel tank 1.Preferably, 6. drilling fluid drawing pump 22 is connected to drilling fluid extraction mouthful connects on safety overflow valve 24, liquid flowmeter 8.4, tensimeter 14.1, throttle solenoid valve 5.5Ye road successively, due to analogue means oil mass self gravitation deficiency, adopt drilling fluid drawing pump 22 can make the simulate effect in cavity, stratum better.
As shown in Figure 3, drilling tool assembly 2 is by square kelly 12, drill collar 13, square kelly drill collar connector 14, guide blot 15, pressure ring 16, drilling rod 17, drill bit 18, spring 19 forms, wherein 1. square kelly 12 top drillings are drilling fluid inlet, drilling fluid enters in organic glass sleeve pipe 9 by the perforate of drilling rod 17 lower ends after entering drilling rod 17 inside, 3. hole by lower joint flange 8 is drawn out of organic glass sleeve pipe 9, form drilling fluid annular space, guide blot 15 is threaded connection and is fixed on pressure ring 16, and through square kelly drill collar connector 14, for pressure ring 16 provides guide effect with respect to the axially-movable of drilling rod 17, spring 19 is arranged between square kelly drill collar connector 14 and pressure ring 16, be full of when organic glass bushing 9 forms stable pressure environment and ensure that spring does not compress completely at drilling fluid, make to stay certain stroke space between square kelly drill collar connector 14 and pressure ring 16, provide buffering link for transferring drilling rod 17, prevent drilling tool traction electric machine group 1 overload load and burn, ensureing that drilling tool assembly 2 can make a trip at pressure environment Imitating simultaneously.Because analogue means is that install flooring, without supporting well-digging operation, cannot as traditional analog test unit, rely on drilling fluid self gravitation to form down-hole pressure environment, apparatus of the present invention utilization is arranged on pressure ring 16 on drilling rod 17 at the interior formation confined space of organic glass sleeve pipe 9, utilize hydraulic system to provide pressure for the drilling fluid in organic glass sleeve pipe 9, simulate the drilling fluid down-hole pressure in actual sleeve pipe, wherein pressure ring main body is stainless steel, and it arranges sealing rubber ring around.
The present invention can simulate following several drilling failure flow process by the control of hydraulic system, and in conjunction with Fig. 2 and Fig. 4-10, its concrete control mode is described as follows:
1, circulation of drilling fluid process simulation: inject flow by opening drilling fluid front pump and regulating first throttle solenoid valve 5.1 and reduction valve 4.1 to control drilling fluid, in the time that drilling fluid liquid level reaches specified altitude assignment, open described drilling fluid drawing pump and regulate second section manifold solenoid valve 5.2 to control drilling fluid and extract flow out, described first flow meter 8.1 is measured described drilling fluid and is injected flow, described the second flowmeter 8.2 is measured described drilling fluid and is extracted flow out, when first flow meter 8.1 is with the second flowmeter 8.2 registrations when identical, at the drilling fluid of the interior formation stable circulation of organic glass sleeve pipe 9.The flow direction of drilling fluid in 9 organic glass sleeve pipes as shown in Figure 4.
2, drilling fluid sedimentation and well control technical modelling: as shown in Figure 5, by regulating the aperture 5.5 simulated formation cavity volumes of the 5th throttle solenoid valve, the interior drilling fluid liquid level of described organic glass sleeve pipe 9 is declined and simulate drilling fluid sedimentation, simulation drilling fluid sedimentation accident.Can pass through adjusting joint manifold solenoid valve 5.1 apertures, increase drilling fluid injection flow and maintain liquid level stabilizing, simulation drilling fluid sedimentation accident well control technology.
3, leakage co simulate: as shown in Figure 6, the oil pressure relief that described surplus valve is set bears pressure with simulated formation, regulate throttling valve 5.2, reduce drilling fluid and extract flow out, drilling fluid liquid level rising simulation well downforce raises, and observes organic glass cover overpressure state by tensimeter 14.2 readings, in the time that down-hole pressure value exceedes surplus valve 13 setting value, surplus valve 13 is opened simulation leakage, can observe leakage flow by flowmeter 8.5, simulation leakage accident.
4, suction co simulate: as shown in Figure 7, drilling tool traction electric machine group 1 drives on drilling rod and carries on simulation drilling tool and put forward process, in the time that pulling speed reaches certain value, organic glass sleeve pipe 9 internal pressures decline and form negative pressure, described retaining valve is opened, outside air enters described organic glass sleeve pipe 9 by described retaining valve, simulation suction accident.Stop promoting drilling rod simulation well control techniques, as stratal configuration destroyed enters overflow co simulate environment.
5, overflow accident and well control technical modelling: as shown in Figure 8, open described oil reservoir simulation pump 25, and regulate oil bearing reservoir pressure in the 3rd throttle solenoid valve 5.3 and the first reduction valve 4.2 simulation control stratum to invade described organic glass sleeve pipe 9, observe excess flow by flowmeter 8.3, observing drilling well liquid level in sleeve pipe simultaneously and rise, there is overflow accident in simulation; Can pump into high density drilling fluid by regulating reduction valve 4.1 to simulate, observe cover overpressures raise by tensimeter 7.1, in the time that the rising of cover overpressure is greater than sand pressure, overflow stops, and flowmeter 8.3 registrations are zero, simulation overflow accident well control technology.
6, oil is invaded gas blowout accident simulation: as shown in Figure 9, oil reservoir simulation pump 25 is opened, adjusting joint manifold solenoid valve 5.3, in reduction valve 4.2 simulated formations, oil bearing reservoir crude oil is invaded sleeve pipe, and reduction valve 4.2 arranges pressure, higher than drilling fluid injection pump reduction valve 4.1, pressure is set, overflow well control lost efficacy, and observed gas blowout accident simulation by nozzle 26; Can simulate preventer stack and close by closing throttle solenoid valve 5.7, gas blowout accident be controlled.
7, gas cut gas blowout accident simulation: as shown in figure 10, connected air compressor 10 is set in described hydraulic system, adjustments of gas reduction valve 19 and gas throttling valve 21, and be connected to described the 5th air Injection mouth, connected the 7th throttle solenoid valve 5.7 and nozzle 26 are set in described hydraulic system, and be connected to described the second drilling fluid/air and extract out mouthful, air compressor 10 is opened, adjustments of gas reduction valve 19, in gas throttling valve 21 simulated formations, gas bearing reservoir rock gas is invaded sleeve pipe, observes gas blowout accident simulation by nozzle 26; Can simulate preventer stack and close by closing throttle solenoid valve 5.7, gas blowout accident be controlled.

Claims (10)

1. an indoor drilling failure analogue means, comprise: drilling failure simulation test bench and hydraulic system, described drilling failure simulation test bench comprises: drilling tool traction electric machine group (1), drilling tool assembly (2), upper joint flange (4), ground simulation plate (7), lower joint flange (8), thribble board simulating bench (10) and derrick simulating bench (11), described drilling tool traction electric machine group (1) is fixed on derrick simulating bench (11), and be connected with drilling tool assembly (2) by gear train, described drilling tool traction electric machine group (1) drives raising and decentralizing of described drilling tool assembly (2) by rotating, described upper joint flange (4) is fixed on described thribble board simulating bench (10), described lower joint flange (8) is fixed on upper joint flange (4) by fixed mechanism, it is characterized in that: described drilling failure simulated experiment stand also comprises organic glass bushing (9), described organic glass sleeve pipe (9) is fixedly installed on described thribble board simulating bench (10) by described upper joint flange (4) and described lower joint flange (8), on wherein said drilling tool assembly (2), be provided with the first drilling fluid inlet and the second drilling fluid/air and extract mouth out, on described lower joint flange (8), be provided with the 3rd drilling fluid and extract mouth out, the 4th drilling fluid inlet, the 5th air Injection mouth, the 6th drilling fluid is extracted mouth out, the 7th drilling fluid is extracted mouth out, the 8th air Injection mouth, the 9th air Injection mouth is set on described upper joint flange (4), each drilling fluid inlet above, drilling fluid is extracted mouth out and air Injection mouth is all connected with described hydraulic system respectively, described hydraulic system comprises: fuel tank, liquid level gauge, drilling fluid front pump, reduction valve, throttle solenoid valve, retaining valve, pressure transducer, liquid flowmeter, proportional pressure control valve, air compressor, gas meter, surplus valve, leakage-free solenoid valve, safety relief valve, cooling gas check valve, gas pressure reducer, needle-valve, gas throttling valve, drilling fluid drawing pump, safety overflow valve, oil reservoir simulation pump and nozzle, by the adjusting control of described hydraulic system, intend drilling failure at described drilling failure simulated experiment stand internal mold.
2. indoor drilling failure analogue means according to claim 1, it is characterized in that: described drilling tool assembly (2) comprises square kelly (12), drill collar (13), square kelly drill collar connector (14), guide blot (15), drilling rod (17), drill bit (18) and spring (19), wherein said square kelly (12) connects drill collar (13), and be connected with drilling rod (17) by square kelly drill collar connector (14), drilling rod (17) connects drill bit (18), wherein said square kelly (12), drill collar (13) and drilling rod (17) are hollow, described the first drilling fluid inlet is arranged on square kelly (12) top, drilling fluid enters this first drilling fluid inlet and flows to drilling rod (17) inside, perforate by drilling rod (17) lower end enters in organic glass sleeve pipe (9).
3. indoor drilling failure analogue means according to claim 2, it is characterized in that: described drilling tool assembly (2) also comprises pressure ring (16), pressure ring (16) is positioned between square kelly drill collar connector (14) and drilling rod (17), does not destroy the pressure equilibrium of having set up in organic glass sleeve pipe (9) in the process that drilling tool assembly is moved up and down.
4. indoor drilling failure analogue means according to claim 3, it is characterized in that: described guide blot (15) is threaded connection and is fixed on described pressure ring (16), and through square kelly drill collar connector (14), for pressure ring (16) provides guide effect with respect to the axially-movable of drilling rod (17); Described spring (19) is arranged between square kelly drill collar connector (14) and pressure ring (16), be full of when organic glass bushing (9) forms stable pressure environment and ensure that spring does not compress completely at drilling fluid, make to leave certain stroke space between square kelly drill collar connector (14) and pressure ring (16), provide buffering link for transferring drilling rod (17), prevent drilling tool traction electric machine group (1) overload load and burn, ensureing that drilling tool assembly (2) can make a trip at pressure environment Imitating simultaneously.
5. one kind according to the control method of the indoor drilling failure analogue means described in claim 1-4 any one, it is characterized in that: connected drilling fluid front pump, first throttle solenoid valve (5.1) and first flow meter (8.1) are set in described hydraulic system, and are connected to described the first drilling fluid inlet, connected second section manifold solenoid valve (5.2) is set in described hydraulic system, the second flowmeter (8.2) and drilling fluid drawing pump, and be connected to the 3rd drilling fluid extract out mouthful, inject flow by opening described drilling fluid front pump and regulating first throttle solenoid valve (5.1) to control drilling fluid, open described drilling fluid drawing pump and regulate second section manifold solenoid valve (5.2) to control drilling fluid and extract flow out, described first flow meter (8.1) is measured described drilling fluid and is injected flow, described the second flowmeter (8.2) is measured described drilling fluid and is extracted flow out, in the time that first flow meter (8.1) is identical with the second flowmeter (8.2) registration, in organic glass sleeve pipe (9), form the drilling fluid of circulation.
6. one kind according to the control method of the indoor drilling failure analogue means described in claim 1-4 any one, it is characterized in that: connected tensimeter (14.2) and surplus valve are set in described hydraulic system, and connect described the 7th drilling fluid extract out mouthful, the oil pressure relief that described surplus valve is set bears pressure with simulated formation, described tensimeter (14.2) is measured the interior drilling liquid pressure of organic glass sleeve pipe (9), in the time that described drilling liquid pressure is greater than described oil pressure relief, simulation leakage accident.
7. one kind according to the control method of the indoor drilling failure analogue means described in claim 1-4 any one, it is characterized in that: the 5th throttle solenoid valve (5.5) is set in described hydraulic system and is connected to described the 6th drilling fluid and extract mouth out, by regulating the 5th throttle solenoid valve (5.5) simulated formation cavity volume, the interior drilling fluid liquid level of described organic glass sleeve pipe (9) is declined, simulation drilling fluid sedimentation accident.
8. one kind according to the control method of the indoor drilling failure analogue means described in claim 1-4 any one, it is characterized in that: in described hydraulic system, retaining valve is set, be connected to described the 8th air Injection mouth, while carrying described drilling tool assembly (2) fast, described organic glass sleeve pipe (9) internal pressure declines and forms negative pressure, described retaining valve is opened, outside air enters described organic glass sleeve pipe (9) by described retaining valve, simulation suction accident.
9. one kind according to the control method of the indoor drilling failure analogue means described in claim 1-4 any one, it is characterized in that: connected oil reservoir simulation pump (25) is set in described hydraulic system, the 3rd throttle solenoid valve (5.3) and the first reduction valve (4.2), and be connected to described the 4th drilling fluid inlet, the 7th throttle solenoid valve (5.7) is set in described hydraulic system and is connected to described the second drilling fluid/air and extract mouth out, open described oil reservoir simulation pump (25), and regulate oil bearing reservoir pressure in the 3rd throttle solenoid valve (5.3) and the first reduction valve (4.2) simulation control stratum to invade described organic glass sleeve pipe (9), control gas blowout accident by closing the 7th throttle solenoid valve (5.7).
10. one kind according to the control method of the indoor drilling failure analogue means described in claim 1-4 any one, it is characterized in that: connected air compressor (10) is set in described hydraulic system, adjustments of gas reduction valve (19) and gas throttling valve (21), and be connected to described the 5th air Injection mouth, the 7th throttle solenoid valve (5.7) is set in described hydraulic system and is connected to described the second drilling fluid/air and extract mouth out, by opening air compressor (10), adjustments of gas reduction valve (19) and gas throttling valve (21) simulation are controlled gas bearing reservoir pressure in stratum and are invaded described organic glass sleeve pipe (9), simulation gas cut process, control gas blowout accident by closing the 7th throttle solenoid valve (5.7).
CN201210558909.XA 2012-12-21 2012-12-21 Indoor drilling accident and well control technology simulation test device Expired - Fee Related CN103065538B (en)

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