CN107420087A - Simulation method and system for hydraulic jet parameters in process of running deep water guide pipe - Google Patents
Simulation method and system for hydraulic jet parameters in process of running deep water guide pipe Download PDFInfo
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- CN107420087A CN107420087A CN201710438575.5A CN201710438575A CN107420087A CN 107420087 A CN107420087 A CN 107420087A CN 201710438575 A CN201710438575 A CN 201710438575A CN 107420087 A CN107420087 A CN 107420087A
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- tripping
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- deep water
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- 238000000034 method Methods 0.000 title claims abstract description 45
- 238000004088 simulation Methods 0.000 title claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 54
- 230000008569 process Effects 0.000 title abstract description 23
- 239000002689 soil Substances 0.000 claims abstract description 45
- 238000002474 experimental method Methods 0.000 claims abstract description 38
- 238000006073 displacement reaction Methods 0.000 claims abstract description 26
- 238000009826 distribution Methods 0.000 claims abstract description 10
- 238000005553 drilling Methods 0.000 claims description 101
- 238000002347 injection Methods 0.000 claims description 64
- 239000007924 injection Substances 0.000 claims description 64
- 210000004907 gland Anatomy 0.000 claims description 42
- 239000012530 fluid Substances 0.000 claims description 20
- 230000001105 regulatory effect Effects 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 13
- 238000000429 assembly Methods 0.000 claims description 6
- 230000000712 assembly Effects 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 claims description 3
- 238000011156 evaluation Methods 0.000 abstract description 7
- 238000010276 construction Methods 0.000 description 15
- 238000013461 design Methods 0.000 description 12
- 239000000203 mixture Substances 0.000 description 10
- 239000004020 conductor Substances 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 9
- 239000007921 spray Substances 0.000 description 6
- 238000005457 optimization Methods 0.000 description 5
- 230000005484 gravity Effects 0.000 description 4
- 238000009533 lab test Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 241001074085 Scophthalmus aquosus Species 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 235000012489 doughnuts Nutrition 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
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- 230000007812 deficiency Effects 0.000 description 1
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- 238000010949 in-process test method Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
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- 210000002445 nipple Anatomy 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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- 238000007665 sagging Methods 0.000 description 1
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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
-
- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/12—Underwater drilling
-
- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/18—Drilling by liquid or gas jets, with or without entrained pellets
- E21B7/185—Drilling by liquid or gas jets, with or without entrained pellets underwater
-
- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
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- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a method and a system for simulating hydraulic jetting parameters in the process of launching a deepwater conduit, wherein the method comprises the following steps: simulating and preparing similar layered soil for experiments based on the soil distribution geological characteristics of the target seabed area; constructing a simulation system with a jet running-in device, maintaining a preset experimental condition, and adjusting hydraulic jet parameters by adjusting the pump pressure of the jet pump; acquiring a predetermined reference signal, comprising: the device comprises a tension signal representing the lifting force of the jet running-in device, a displacement signal representing the running-in distance of a guide pipe of the jet running-in device and a pressure signal representing the pressure in the layered soil body; and selecting target hydraulic jet parameters in the process of running the deepwater conduit under the preset experimental conditions according to the acquired reference signals. The method and the system for simulating the hydraulic jetting parameters in the running-in process of the deepwater conduit can be used for carrying out indoor experimental simulation and evaluation on the hydraulic jetting parameters in the running-in process of the deepwater conduit.
Description
Technical field
The present invention relates to the conduit in deepwater drilling to spray tripping in technical field, more particularly to a kind of deep water conduit tripping in
The analogy method and system of waterpower nozzle parameter in journey.
Background technology
In ocean engineering oil/gas drilling industry, injection tripping in microcatheter technology saves drilling well work when implementing due to that can reach
The time of industry, and the effect of the risk and cost for reducing drilling well can be reached, therefore turn into a wide variety of technology.Further
, a kind of deep water injection catheter suction technology is specially devised for the oil-gas field development of deepwater regions, it is in jet drilling
The new technology to grow up on the basis of well and MTR application.The technology is when implementing by drill bit and MTR by leading
Pipe tripping in specialist tools form injection running string string, abbreviation drill string together with conduit.Wherein, the main function of drill bit is broken
Soil before conduit pipe shoe, mud is subsequently pumped into by drill string again the annular space of landwaste from pipe inner wall and drill string is carried out
Sea bed is directly discharged into behind shaft bottom.During tripping in, conduit bores under Action of Gravity Field of its deadweight with whole drill string etc. with drill bit
The neck gone out sinks and extrudes surrounding formation until projected depth now.After tripping in projected depth, by certain " during wait
Between ", cementing stress is established between conduit and stratum clay, and increase with the time and reinforce, so that it is guaranteed that conduit " being hanged "
Without sinking.
When using tripping in microcatheter technology is sprayed, it is thus necessary to determine that the construction ginseng during the depth of setting of conduit and tripping in
Number.On the one hand, if the design depth of setting of conduit is excessive, waste economically can be caused, or even causes not enter under conduit,
Subsea wellheads exposure mud upper thread is too high and causes well to scrap;On the other hand, may if the design depth of setting of conduit is too small
The security incidents such as the sagging unstability of catheter tube columns bearing capacity deficiency, well head are caused, equally cause tremendous economic to waste.In addition, tripping in
During one of core construction parameter be water-jet parameter size.Therefore, it is necessary to propose a kind of deep water conduit tripping in
During water-jet parameter analogy method and system, to carry out the simulation of water-jet parameter and evaluation, so as to obtain close
The water-jet parameter of reason, spray tripping in for deep water conduit and foundation is provided, final realize improves the energy that water-jet auxiliary is broken ground
Power, drilling efficiency is improved, save the deepwater drilling expense of costliness.
The content of the invention
It is an object of the invention to provide the analogy method and system of water-jet parameter during a kind of deep water conduit tripping in,
Laboratory experiment simulation and evaluation can be carried out to the water-jet parameter of deep water conduit tripping in process.
The above-mentioned purpose of the present invention can be realized using following technical proposal:
The analogy method of water-jet parameter during a kind of deep water conduit tripping in, including:
The layered soil of similar experiment is prepared in soil body distribution geologic feature based on target sea-bed area, simulation;
Simulation system of the structure with injection tripping in device, the simulation system are additionally provided with the remaining injection tripping in device
The jet pump being connected, the injection tripping in device are interior formed with fluid course;
Predetermined experiment condition is maintained, water-jet parameter is adjusted by the pump pressure for adjusting the jet pump;
Predetermined reference signal is gathered, the reference signal includes:Represent the lifting power size of the injection tripping in device
Pulling force signal, represent the displacement signal of the conduit tripping in distance of the injection tripping in device, represent the layered soil internal pressure
The pressure signal of power size;
According to the reference signal of collection, the target during the tripping in of deep water conduit under predetermined experiment condition is chosen at
Water-jet parameter.
In one preferred embodiment, the injection tripping in device is provided with drill bit and drilling rod, and the drill bit is set
In the lower end of the drilling rod, the drill bit and drilling rod have been internally formed the fluid course, and the predetermined experiment condition includes:
Predetermined rod rotation speed, predetermined the pressure of the drill, predetermined drill bit overhang.
The simulation system of water-jet parameter during a kind of deep water conduit tripping in, including:
Experiment frame, the native case for being provided with layered soil, injection tripping in device, jet pump, Multichannel data acquisition device, control
Device, displacement transducer, pressure sensor, pulling force sensor;Wherein,
The injection tripping in device is provided with:Conduit;
The target tripping in distance of conduit is stored with the controller;The controller and the Multichannel data acquisition device
It is electrically connected with;
The Multichannel data acquisition device and institute displacement sensors, pressure sensor, pulling force sensor, jet pump are electrical
Connection,
Predetermined experiment condition is maintained, water-jet parameter is adjusted by the pump pressure for adjusting the jet pump, works as institute every time
After the displacement signal that displacement sensors detect represents the conduit tripping in target tripping in distance, the controller passes through described
Multichannel data acquisition device sends shutdown signal to the jet pump and injection tripping in device, the letter gathered according to each sensor
Number, the controller is chosen under predetermined experiment condition the target water-jet parameter during the tripping in of deep water conduit.
In one preferred embodiment, the pressure sensor is distribution type fiber-optic pressure sensor, the pressure
Sensor is along soil stress measuring point vertically spaced set, and along conduit radial direction spaced set.
In one preferred embodiment, the injection tripping in device includes:
Conduit, it has the chamber extended longitudinally;
Gland, it is set in the upper end of the conduit;Outage, the outage and the chamber are provided with the gland
Room connects, and is discharged for the liquid in the chamber;
Drilling assemblies, it includes:
Motor, it is provided with rotary shaft;
Drilling rod, it is located in the conduit, and its lower end is provided with drill bit, its upper end and the rotation axis connection;
Filling head, it is arranged on the upper end of the rotary shaft, injects for liquid in the drilling rod;
Balancing weight, it is located at the top of the filling head, for adjusting the pressure of the drill of the drill rod assemblies.
In one preferred embodiment, in addition to journey is stretched out in the lower end for adjusting the relatively described conduit of the drill bit
The governor motion of degree.
In one preferred embodiment, the governor motion is arranged between the gland and the conduit.
In one preferred embodiment, the governor motion is the matching mechanism of regulating bolt and screwed hole, described
Formed with the first extension extended longitudinally on gland, first extension is set in the upper end of the conduit, and described
On one extension circumferentially or genesis analysis has multiple screwed holes, the regulating bolt can be located on the screwed hole.
In one preferred embodiment, it is additionally provided with the gland and on the inside of first extension
Second extension, first extension and the second extension form concentric circles ring cavity, and the upper end of the conduit can be caught in described
The donut intracavitary that first extension is formed with second extension.
In one preferred embodiment, to be provided with rotary seal between the filling head and the rotary shaft spherical
Head, the filling head are fixedly connected with the rotary seal ballhead, and the rotary shaft rotates with the rotary seal ballhead
Connection.
In one preferred embodiment, the motor is arranged on the gland, the motor be electro-motor or
Person's fluid motor.
The features and advantages of the invention are:The simulation of water-jet parameter during deep water conduit tripping in provided by the invention
System, by adjusting the running parameter of jet pump, water-jet parameter can be simulated during tripping in the shadow of conduit tripping in process
Analysis is rung, laboratory experiment evaluation can be carried out to the water-jet parameter construction parameter of deep water conduit tripping in process, to study seabed
The complex linear dependency relation of native soil condition and running string technological parameter, so as to obtain rational water-jet parameter, it is
The injection tripping in of deep water conduit provides foundation, final to realize the ability that water-jet auxiliary is broken ground that improves, and improves drilling efficiency, saves
Expensive deepwater drilling expense.
By the analogy method of water-jet parameter during deep water conduit tripping in described herein, specifically, this Shen
Please by the design of jet pump, the running parameter for adjusting jet pump is joined with simulating the different water-jets during conduit tripping in
Number, and then under the conditions of the soil body of different nature can be obtained, the optimum organization between parameters.Particularly in other specification one
In the case of fixed, the target water-jet parameter that preferably goes out during deep water conduit tripping in can instruct actual deep water conduit
Tripping in process, so as to improve the tripping in efficiency of injection tripping in, reduce security incident.
With reference to following explanation and accompanying drawing, the particular implementation of the application is disclose in detail, specifies the original of the application
Reason can be in a manner of adopted.It should be understood that presently filed embodiment is not so limited in scope.In appended power
In the range of the spirit and terms that profit requires, presently filed embodiment includes many changes, modifications and is equal.
The feature for describing and/or showing for a kind of embodiment can be in a manner of same or similar one or more
Used in individual other embodiment, it is combined with the feature in other embodiment, or substitute the feature in other embodiment.
It should be emphasized that term "comprises/comprising" refers to the presence of feature, one integral piece, step or component when being used herein, but simultaneously
It is not excluded for the presence or additional of one or more further features, one integral piece, step or component.
Brief description of the drawings
Fig. 1 is a kind of knot of the simulation system of water-jet parameter during deep water conduit tripping in the application embodiment
Structure schematic diagram;
Fig. 2 is a kind of structural representation for spraying tripping in device in the application embodiment;
Fig. 3 is a kind of step of the analogy method of water-jet parameter during deep water conduit tripping in the application embodiment
Rapid flow chart.
Description of reference numerals:
1- experiment frames;2- soil casees;3- sprays tripping in device;4- displacement transducers;5- pressure sensors;6- layered soils;
7- jet pumps;8- Multichannel data acquisition devices;9- controllers;10- pulling force sensors;31- suspension ring;32- balancing weights;33- fluid injections
Head;34- seal nipples;35- motors;36- rotary shafts;37- glands;38- outages;311- drilling rods;312- conduits;313- rightings
Part;314- drill bits;315- chambers;111st, the first extension;112nd, the second extension;39- regulating parts.
Embodiment
Below in conjunction with the drawings and specific embodiments, technical scheme is elaborated, it should be understood that these
Embodiment is only illustrative of the invention and is not intended to limit the scope of the invention, after the present invention has been read, this area skill
Modification of the art personnel to the various equivalent form of values of the present invention is each fallen within the application appended claims limited range.
It should be noted that when element is referred to as " being arranged at " another element, it can be directly on another element
Or there may also be element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " on ",
" under ", "left", "right" and similar statement for illustrative purposes only, it is unique embodiment to be not offered as.
Unless otherwise defined, all of technologies and scientific terms used here by the article and the technical field of the application is belonged to
The implication that technical staff is generally understood that is identical.The term used in the description of the present application is intended merely to description tool herein
The purpose of the embodiment of body, it is not intended that in limitation the application.Term as used herein "and/or" includes one or more
The arbitrary and all combination of related Listed Items.
When carrying out deep water conduit tripping in design, simulation need to be carried out to running string and designs calculating, to study subsea strata
Soil condition and tripping in Controlling parameters (the pressure of the drill, drilling fluid displacement, rod rotation speed, drill bit elongation, bit size, conduit
Running speed etc.) complex nonlinear relation.And then for the preferred bite type of Different Strata, preferably drilling parameter, realize water
The ability that power injection auxiliary is broken ground, can not only greatly be saved the time, but also save the deepwater drilling expense of costliness, improved and bored
Well efficiency effect is fairly obvious, great to injection tripping in technical meaning.
The present invention provides the analogy method and system of water-jet parameter during a kind of deep water conduit tripping in, can be to deep water
The water-jet parameter construction parameter of conduit tripping in process carries out laboratory experiment simulation and evaluation, so as to obtain rational waterpower spray
Parameter is penetrated, spraying tripping in for deep water conduit provides foundation, final to realize the ability that water-jet auxiliary is broken ground that improves, and improves drilling well
Efficiency, save the deepwater drilling expense of costliness.
Fig. 1 and Fig. 2 are referred to, water-jet parameter during a kind of deep water conduit tripping in is provided in the application embodiment
Simulation system, the system can include:Experiment frame 1, the native case 2 for being provided with layered soil 6, injection tripping in device 3, jet pump
7th, Multichannel data acquisition device 8, controller 9, displacement transducer 4, pressure sensor 5, pulling force sensor 10.
In the present embodiment, experiment frame 1 can be erected at the periphery of native case 2, and it may be used to provide under the injection
Enter the suspension force of device 3.Specifically, the experiment frame 1 can have a level board and support multiple support plates of the level board,
Multiple support plates can be fixed in the plane that experiment frame 1 is placed in.In addition, the form of the experiment frame 1 be not limited to it is above-mentioned
Citing, the application do not make specific limit herein.In addition, the pulling force sensor 10 can be fixed on the experiment frame 1.
For example, it can be fixed on the level board.
Connector can be provided between the pulling force sensor 10 and the injection tripping in device 3, the connector one end
It is connected with the pulling force sensor 10, the other end is connected with the injection tripping in device 3.The pulling force sensor 10 can be set
On the connector.Specifically, the form of the connector can be steel wire rope etc., or can also be other forms, this Shen
Do not limit specifically herein please.The pulling force sensor 10, which is used for asking, calculates tripping in gravity, i.e. the pressure of the drill.
In the present embodiment, native case 2 can be used for the soil body for accommodating simulated sea bottom stratum, specifically, the native case 2 can be with
In hollow case shape, it has bottom wall and encloses the side wall being located at around the bottom wall.The cross sectional shape of the native case 2 can be in square
Shape, can also be rounded etc., it is possibly even other irregular shapes, specific the application does not make specific limit herein
It is fixed.
In the present embodiment, the native case 2 has certain depth, according to the seabed bottom soil body in the native case 2
Distribution situation, layered soil 6 is provided with, is distributed with the soil body of simulated target sea-bed area.
In the present embodiment, tripping in device 3 is sprayed to can be used for the tripping in projected depth of conduit 312.Specifically, it please tie
Conjunction refers to Fig. 2, and a kind of injection tripping in device 3 provided in the application embodiment can include:Conduit 312, it has along vertical
To the chamber 315 of extension;Gland 37, it is set in the upper end of conduit 312;The row of being provided with the gland 37 of the upper end of conduit 312
Fluid apertures 38, outage 38 connect with chamber 315, are discharged for the liquid in chamber 315;Drilling assemblies, it includes:Motor 35, its
It is provided with rotary shaft 36;Drilling rod 311, its at least part are located in conduit 312, and the lower end of drilling rod 311 is provided with drill bit 314,
Its upper end is connected with rotary shaft 36;Balancing weight 32, it is arranged on the top of conduit 312, and it is used for the pressure of the drill for adjusting drilling rod 311;
Filling head 33, it is arranged on the upper end of rotary shaft 36, injects for liquid in drilling rod 311.
The injection tripping in device 3 provided using the application, the regulation of each parameter can be carried out in the lab, analyze deep water
Influence of each parameter to tripping in process in the injection tripping in technique of jet drilling conduit 312.Wherein, the design of balancing weight 32 can mould
Intend and analyze impact analysis of the different drilling pressures to the tripping in of drilling conductor 312;Motor 35 can simulate and analyze 311 turns of drilling rod
Influence of the speed to the tripping in process of drilling conductor 312;The design of outage 38, shaft bottom can be simulated and return out drilling fluid passing away, entered
And determine influence of the flow of drilling fluid discharge to the tripping in process of drilling conductor 312;The injection of the controlling drilling well liquid of filling head 33
Amount, can analyze influence of the injection rate to drilling process of drilling fluid, the optimization of each parameter can be carried out by above-mentioned each part,
So as to improve efficiency of construction of the drilling conductor 312 during practice of construction.
In the present embodiment, conduit 312 can have a chamber 315 (in the operating condition) extended longitudinally.Its
In, the chamber 315 can be the chamber 315 of cylinder so that drilling rod 311 can be located in conduit 312 and can relative conduit 312
Rotate.Gland 37 can be the lid of upper end closed and open at its lower end.The internal diameter of gland 37 and the external diameter of conduit 312 are adapted,
And then gland 37 is set on conduit 312, and then the upper end of conduit 312 is blocked.Wherein, the mode being arranged can be with
Including threaded connection, clamping or welding.Certainly, conduit 312 can also be other structures, however it is not limited to which present embodiment limits
Structure.
Drilling assemblies can include drilling rod 311 and the motor 35 being connected with drilling rod 311.Drilling rod 311 is used to pierce
Stratum (the experiment stratum in laboratory, wherein the reference on experiment stratum can also adjust).Specifically, drilling rod 311 can at least portion
Divide and be set in conduit 312.The upper end of drilling rod 311 can be rotatablely connected with gland 37.The lower end of drilling rod 311 can be provided with brill
First 314, the downward drilling well under the drive of drilling rod 311 of drill bit 314.Drilling rod 311 is driven to rotate in order to facilitate motor 35, motor 35 can
To be arranged on gland 37.It can be connected between motor 35 and drilling rod 311 by way of rotary shaft 36 so that horse
Up to 35 drilling rod 311 can be driven to be rotated.Motor 35 can simulate and analyze the rotating speed of drilling rod 311 to the tripping in process of drilling conductor 312
Influence, shadow of the rotating speed to the tripping in process of drilling conductor 312 in the injection tripping in technique of analysis deep water jet drilling conduit 312
Ring, and then carry out the optimization of parameter, so as to improve the efficiency of construction during practice of construction.Wherein, motor 35 can include
At least one of electro-motor 35 and fluid motor 35.The kind of drive between motor 35 and drilling rod 311 is also not necessarily limited to turn
The mode that moving axis 36 connects, can also be that gear connection or chain connection, the application are not restricted to this.
In an optional embodiment, righting part 313 is also provided with conduit 312, it is used to enter drilling rod 311
Row righting.
In the present embodiment, the upper end of rotary shaft 36 can be provided with filling head 33, and filling head 33 connects with drilling rod 311
Logical, it is used to inject liquid into drilling rod 311.Liquid can be by the stratum component that drill bit 314 drills out from row after entering in drilling rod 311
Fluid apertures 38 is constantly discharged, and then can guarantee that drill bit 314 is constantly drilled down into.
In the present embodiment, outage 38 can be arranged on gland 37, and outage 38 connects with chamber 315, for chamber
Liquid discharge in room 315.Specifically, outage 38 can be arranged on the upper end of gland 37 or be circumferentially disposed at gland 37
Side wall on.Preferably, outage 38 can be arranged in the side wall of gland 37, and circumferentially set at equal intervals.Outage 38
Connected with chamber 315, and then the passage of the drilling fluid discharge formed in energy work chamber 315, determine the flow pair that drilling fluid is discharged
The influence of the tripping in process of drilling conductor 312, and then the optimization of parameter is carried out, so as to improve the construction effect during practice of construction
Rate.Wherein, the quantity of outage 38 is more, and the flow of drilling fluid discharge is bigger.
Balancing weight 32 can be arranged on the top of gland 37, and it is applied to conduit by the weight or change for changing itself
The value of 312 pressure, and then adjust the drilling pressure of drilling rod 311.Balancing weight 32 can apply a pressure to gland 37, and the pressure is entered
And can act on on drilling rod 311 so that drilling rod 311 has towards piercing the drilling pressure in direction so that drilling rod 311 can be persistently
The downward drilling well in ground.Wherein, balancing weight 32 is that the pressure to gland 37 can be adjusted in a manner of adjusting dead weight or by hydraulic regulation
Power so that experimenter is applied to the pressure of gland 37 by adjusting balancing weight 32 in the lab, and analysis deep water jet drilling is led
Influence of the drilling pressure to the tripping in process of drilling conductor 312 in the injection tripping in technique of pipe 312, and then the optimization of parameter is carried out,
So as to improve the efficiency of construction during practice of construction.Specifically, the balancing weight 32 can include multiple weight grades;Work as tune
The weight grade of the whole balancing weight, can adjust the pressure of the drill.
In an optional embodiment, the position of filling head more than 33 is fixed with the limiting section for setting balancing weight 32,
The upper end of limiting section is provided with suspension ring 31.The balancing weight 32 of multiple different qualities can be arranged with limiting section, and then makes counterweight
Block 32 provides different drilling pressures to drilling rod 311.
In the present embodiment, spray tripping in device 3 and also include regulating part 39, regulating part 39 is used to adjust drilling rod 311
Lower end stretch out conduit 312 part length.Specifically, regulating part 39 can be arranged between gland 37 and conduit 312, make
Position of the conduit 312 relative to gland 37 can be adjusted by obtaining regulating part 39, i.e., between the bottom wall of the upper end of conduit 312 and gland 37
Distance can adjust, when Distance Shortened, the lower end of drilling rod 311 stretch out conduit 312 part length, when distance increase
When, the length that the part of conduit 312 is stretched out in the lower end of drilling rod 311 (drill bit 314) reduces.The design method of the application can be in reality
Test in room and realize by simulating the overhang of different drill bits 314 during the tripping in of drilling conductor 312, to study different drill bits 314
In the case of overhang, pipe string combination carries out the optimization of parameter to the efficiency of breaking ground of specific seabed soil condition, so as to improve
Efficiency of construction during practice of construction.
In a specific embodiment, regulating part 39 can be the matching mechanism of regulating bolt and screwed hole.Adjust spiral shell
Bolt can be arranged between gland 37 and conduit 312.For example, regulating bolt can be threadedly coupled with conduit 312, regulating bolt
Outer wall of the end again with conduit 312 offsets.When carrying out the regulation of the overhang of drill bit 314, operating personnel can first unscrew regulation
Bolt, the relative position between gland 37 and conduit 312 is then adjusted, make the satisfactory length of stretching of drill bit 314, then
Regulating bolt is tightened again.Certainly, present embodiment is not limited specifically the regulating part 39 in the application, as long as meeting to adjust
Section part 39 can adjust the overhang of drill bit 314, all be the requirement for meeting the application.
Specifically, formed with the first extension 111 extended longitudinally on gland 37, the first extension 111, which is set in, leads
The upper end of pipe 312, regulating bolt can be located in screw thread on the first extension 111 circumferentially or genesis analysis has multiple screwed holes
Kong Shang.First extension 111 can be the cylinder-like structure greater diameter than conduit 312 so that the first extension 111 can cover
It is located on conduit 312, screwed hole can be arranged on the first extension 111, and then enables regulating bolt by conduit 312 and gland
37 phases are fixed.
In an optional embodiment, second is additionally provided with gland 37 and positioned at the inner side of the first extension 111
Extension 112, the first extension 111 and the second extension 112 can form concentric circles ring cavity, and the upper end of conduit 312 can be caught in
The donut intracavitary that first extension 111 and the second extension 112 are formed, and then ensure energy between conduit 312 and gland 37
Stably connect.
In an optional embodiment, rotary seal ballhead is also provided with gland 37, rotary seal is spherical
The upper end of head and drilling rod 311 is rotatablely connected, so that drilling rod 311 can rotate relative to conduit 312.Wherein, rotary seal ballhead position
Between filling head 33 and gland 37, one end of rotary seal ballhead connects with filling head 33, rotary seal ballhead it is another
One end is connected with gland 37.The transmission that can be connected with the drive shaft of motor 35 can be provided with rotary seal ballhead
Part, drilling rod 311 can extend into rotary seal ballhead and be rotatablely connected with driving member, motor 35 and then can drive drilling rod
311 rotate.Meanwhile drilling rod 311 can be connected by rotary seal ballhead with filling head 33, drilling well liquid energy passes through rotary seal ball
Forming head is injected into drilling rod 311.Wherein, rotary seal ballhead, balancing weight 32 and gland 37 can be coaxially disposed.Certainly
, in other embodiments, balancing weight 32 and rotary seal ballhead can also be disposed in parallel on gland 37, the application
This is not restricted.
In the present embodiment, jet pump 7 is used to provide high pressure liquid stream to the injection tripping in device 3, realizes that waterpower is sprayed
Auxiliary is penetrated to break ground function.The pressure for the liquid stream that the jet pump 7 provides can fit according to factors such as different soil body distributions
Answering property is adjusted, specifically, the application does not make specific limit herein.Specifically, the port of export of the jet pump 7 can pass through
High pressure line connects with the filling head 33 of the injection tripping in device 3.In addition, the jet pump 7 can be with the multichannel number
It is connected according to collector 8, on the one hand, the predetermined pump pressure that the Multichannel data acquisition device 8 can store according to controller 9 controls
The pump pressure of the jet pump 7;On the other hand, the Multichannel data acquisition device 8 can gather the pump pressure of the jet pump 7 in real time, so
Give the pump pressure data feedback of collection to the controller 9 afterwards.Accordingly, the controller 9 can be according to the pump pressure data of feedback
Compared with predetermined pump pressure data, to monitor the working condition of the jet pump 7.
In the present embodiment, displacement transducer 4 is used for the displacement letter for detecting conduit 312 in the injection tripping in device 3
Number, and after the displacement signal of conduit 312 in the injection tripping in device 3 is converted into electric signal, pass through multi-channel data acquisition
Device 8 passes to controller 9.The target tripping in distance of conduit 312 in the injection tripping in device 3 is stored with the controller 9,
After the tripping in of conduit 312 distance reaches target tripping in distance in the injection tripping in device 3, the controller 9 controls the horse
It is stopped up to 35, accordingly, conduit 312 stops moving down in the injection tripping in device 3.Specifically, the displacement transducer 4 can
To be arranged on the surface of the injection tripping in device 3, by sense the tripping in position of conduit 312 in the injection to its away from
From determining the depth of setting of conduit 312 in the injection tripping in device 3.
In the present embodiment, pressure sensor 5 is used to detect the pressure in the layered soil 6.Specifically, testing
During spraying tripping in, the pressure sensor 5 can be sensed around conduit 312, the surrounding soil of drill bit 314 is with course of injection
The stress variation of the soil body, so as to be advantageous to find disturbance rule of the injection tripping in process to surrounding soil.Specifically, the pressure
The form of sensor 5 can be distribution type fiber-optic pressure sensor 5, preferably to sense the change of the soil stress of the soil body.Certainly
The pressure sensor 5 can also be other forms, and the application does not make specific limit herein.When the pressure sensor 5
For distribution type fiber-optic pressure sensor 5 when, the sensor can be along soil stress measuring point vertically spaced set, and edge
The radial direction spaced set of conduit 312.
In the present embodiment, Multichannel data acquisition device 8 be used for respectively with displacement transducer 4, pressure sensor 5, draw
Force snesor 10, jet pump 7 are electrically connected with, for gathering displacement sensors 4, pressure sensor 5, pulling force sensor 10,
Corresponding data-signal at jet pump 7.Meanwhile the Multichannel data acquisition device 8 is also electrically connected with the controller 9, so as to
The data collected are transferred to the controller 9, or receive the output signal of the controller 9, and output signal is passed
Pass all parts being electrically connected.In the present embodiment, the electric connection can be wired connected mode,
Can be wireless connected mode, specifically, the application does not make specific limit herein.
Specifically, the Multichannel data acquisition device 8 can be the data acquisition product with USB interface, such as can be with
For:SZSC-16S is 16 passages, and SZSC-32S is 32 passages, and they can be with various desktop computers, notebook with USB interface
Computer, industrial computer connect and compose high performance data acquisition measuring system.
In the present embodiment, controller 9 is used for and the Multichannel data acquisition device 8 cooperatively forms data acquisition measurement
System.The controller 9 can be desktop computer, notebook computer, industrial computer etc., specifically, the form of the controller 9
The application does not make specific limit herein.The controller 9 can be provided with USB interface, led to described by USB interface more
Track data collector 8 is connected.Certainly, the connected mode of the controller 9 and the Multichannel data acquisition device 8 can also lead to
Cross other modes wireless mode such as bluetooth, infrared or WIFI to connect, specifically, the application does not make specifically herein
Limit.The signal that the Multichannel data acquisition device 8 gathers can be carried out when specifically used, in the controller 9 storage and
Com-parison and analysis.Specifically, when the displacement signal that institute's displacement sensors 4 detect represents the tripping in target tripping in of conduit 312
After distance, the controller 9 is sent and closed to the jet pump 7 and injection tripping in device 3 by the Multichannel data acquisition device 8
Close signal.
Referring to Fig. 3, water-jet parameter during a kind of deep water conduit tripping in is also provided in the application embodiment
Analogy method, this method may include steps of:
Step S10:The layering of similar experiment is prepared in soil body distribution geologic feature based on target sea-bed area, simulation
The soil body;
Step S12:Simulation system of the structure with injection tripping in device, the simulation system are additionally provided with the remaining injection
The jet pump that tripping in device is connected, the injection tripping in device are interior formed with fluid course;
Step S14:Predetermined experiment condition is maintained, water-jet parameter is adjusted by the pump pressure for adjusting the jet pump;
Step S16:Predetermined reference signal is gathered, the reference signal includes:Represent carrying for the injection tripping in device
The pulling force signal of pulling force size, represent the displacement signal of the conduit tripping in distance of the injection tripping in device, represent the layering
The pressure signal of pressure size in the soil body;
Step S18:According to the reference signal of collection, deep water conduit tripping in process under predetermined experiment condition is chosen at
In target water-jet parameter.
In the present embodiment, it is distributed according to the soil body of target sea-bed area, the stratified soil of preparation experiment in native case
Body, and pressure sensor is set in the layered soil, wherein, it is provided with experiment frame outside the native case.Specifically, preparing
During layered soil, deep water Engineering Geologic Characteristics can be combined, prepare the laboratory layered soil with similitude indoors.By phase
Like property, it can primarily determine that and be sent into pipe string combination, BHA and drill bit overhang etc.;Wherein, by similitude mainly according to
According to the technical experience of similar drilling well, the span of parameters is determined, parameter value section can be opened up in experimentation
It is wide.
When building simulation system, injection tripping in device is arranged on the experiment frame, in the injection tripping in device
The position being connected with the experiment frame sets pulling force sensor;Displacement transducer is set above the injection tripping in device;Institute
State in injection tripping in device formed with fluid course, the injection tripping in device is connected with jet pump.
When carrying out simulated experiment, predetermined experiment condition can be maintained, repeatedly adjusts the pump pressure of the jet pump, so as to adjust
Water saving power nozzle parameter.Then obtain experimental data respectively, specifically, can by with the pressure sensor, pull sensing
The Multichannel data acquisition device collection reference signal of device, displacement transducer and jet pump electrical communication, the reference signal include:
Pressure signal, pulling force signal, displacement signal.Subsequently predetermined experiment bar can be chosen at according to the reference signal of collection
Target water-jet parameter under part during the tripping in of deep water conduit.
In the present embodiment, the injection tripping in device is provided with drill bit and drilling rod, and the drill bit is arranged on the brill
The lower end of bar, the drill bit and drilling rod have been internally formed the fluid course, and the predetermined experiment condition can include:It is predetermined
Rod rotation speed, predetermined the pressure of the drill, predetermined drill bit overhang.
Specifically, when carrying out simulated experiment, series of packets experiment can be carried out:
Drilling speed is tested in design simulation, may be configured as drilling speed sequential value, such as:N1, N2 ... Nn (units:Rev/min);
The tripping in gravity (the pressure of the drill) of design simulation experiment, may be configured as the pressure of the drill sequential value, such as:G1, G2 ... Gn (units:
kN);
Design simulation experiment running speed, can running speed sequential value, such as:V1, V2 ... Vn (units:m/s).
When carrying out series of packets experiment, N, G, V parameter are carried out to be respectively set to fixed value, study different water-jets
Under Parameter Conditions, tripping in process evaluation is carried out to deep water conduit.In general, drilling speed, drill bit overhang, water-jet parameter, under
Entering has complicated non-linear relation between the parameters such as gravity (the pressure of the drill), running speed, because soil mass property has multi-solution,
Also there is multi-solution between each parameter.Pass through the simulation side of water-jet parameter during deep water conduit tripping in described herein
Method, specifically, design of the application by jet pump, the running parameter of jet pump is adjusted to simulate during conduit tripping in not
With water-jet parameter, and then under the conditions of the soil body of different nature can be obtained, the optimum organization between parameters.Particularly
In the case where other specification is certain, the target water-jet parameter that preferably goes out during deep water conduit tripping in can instruct reality
The deep water conduit tripping in process on border, so as to improve the tripping in efficiency of injection tripping in, reduce security incident.
On the whole, during deep water conduit tripping in provided by the invention water-jet parameter analogy method, can be to deep water
The water-jet parameter construction parameter of conduit tripping in process carries out laboratory experiment evaluation, to study seafloor soil soil condition and tripping in
The complex linear dependency relation of pipe string technology parameter, so as to obtain rational water-jet parameter, spray tripping in for deep water conduit
Foundation is provided, it is final to realize the ability that water-jet auxiliary is broken ground that improves, drilling efficiency is improved, saves the deepwater drilling expense of costliness
With.
Herein cited any digital value all include between lower limit to higher limit with the lower value of an incremented and
The all values of upper value, the interval of at least two units between any lower value and any much higher value be present.For example, such as
Fruit elaborates that the quantity of part or the value of process variable (such as temperature, pressure, time etc.) are from 1 to 90, preferably from 20
To 80, more preferably from 30 to 70, then purpose is to illustrate that such as 15 to 85,22 are also clearly listed in the specification arrives
68th, 43 to 51,30 to 32 is equivalent.For the value less than 1, it is 0.0001,0.001,0.01,0.1 suitably to think a unit.
These are only intended to the example clearly expressed, it is believed that the numerical value enumerated between minimum and peak is possible to
Combination is all expressly set forth in the specification in a similar manner.
Unless otherwise indicated, all scopes all include all numerals between end points and end points.It is used together with scope
" about " or " approximation " be suitable for two end points of the scope.Thus, " about 20 to 30 " are intended to covering " about 20 to about
30 ", including at least the end points indicated.
All articles and reference disclosed, including patent application and publication, for various purposes by quoting knot
Together in this.Describe the term " substantially by ... forms " of combination should include determined by element, composition, part or step and reality
Other elements, composition, part or the step of the basic novel feature of the combination are not influenceed in matter.Using term "comprising" or
" comprising " describes the combination of element here, composition, part or step it is also contemplated that substantially by these elements, composition, part
Or the embodiment that step is formed.Here by using term " can with ", it is intended to which illustrate that " can with " include is described any
Attribute is all optional.
Multiple element, composition, part or step can be provided by single integrated component, composition, part or step.It is alternative
Ground, single integrated component, composition, part or step can be divided into multiple element, composition, part or the step of separation.It is used for
The open "a" or "an" for describing element, composition, part or step is not said to exclude other elements, composition, part
Or step.
Above-mentioned each embodiment in this specification is described by the way of progressive, identical between each embodiment
Similar portion is cross-referenced, and what each embodiment stressed is and other embodiment difference.
The foregoing is only several embodiments of the invention, although disclosed herein embodiment as above, institute
Content is stated only to facilitate the embodiment for understanding the present invention and using, is not intended to limit the present invention.Any institute of the present invention
Belong to those skilled in the art, do not depart from disclosed herein spirit and scope on the premise of, can be in embodiment
Formal and details on make any modification and change, but the scope of patent protection of the present invention still must be with appended claims
The scope that book is defined is defined.
Claims (11)
- A kind of 1. analogy method of water-jet parameter during deep water conduit tripping in, it is characterised in that including:The layered soil of similar experiment is prepared in soil body distribution geologic feature based on target sea-bed area, simulation;Simulation system of the structure with injection tripping in device, the simulation system are additionally provided with the remaining injection tripping in device and are connected Logical jet pump, the injection tripping in device are interior formed with fluid course;Predetermined experiment condition is maintained, water-jet parameter is adjusted by the pump pressure for adjusting the jet pump;Predetermined reference signal is gathered, the reference signal includes:Represent the drawing of the lifting power size of the injection tripping in device Force signal, represent the displacement signal of the conduit tripping in distance of the injection tripping in device, represent that pressure is big in the layered soil Small pressure signal;According to the reference signal of collection, the target waterpower during the tripping in of deep water conduit under predetermined experiment condition is chosen at Nozzle parameter.
- 2. the analogy method of water-jet parameter during deep water conduit tripping in as claimed in claim 1, it is characterised in that institute State injection tripping in device and be provided with drill bit and drilling rod, the drill bit is arranged on the lower end of the drilling rod, in the drill bit and drilling rod Portion includes formed with the fluid course, the predetermined experiment condition:It is predetermined rod rotation speed, predetermined the pressure of the drill, predetermined Drill bit overhang.
- A kind of 3. simulation system of water-jet parameter during deep water conduit tripping in, it is characterised in that including:Experiment frame, the native case for being provided with layered soil, injection tripping in device, jet pump, Multichannel data acquisition device, controller, Displacement transducer, pressure sensor, pulling force sensor;Wherein,The injection tripping in device is provided with conduit;The target tripping in distance of conduit is stored with the controller;The controller and the Multichannel data acquisition device are electrical Connection;The Multichannel data acquisition device electrically connects with institute displacement sensors, pressure sensor, pulling force sensor, jet pump Connect,Predetermined experiment condition is maintained, water-jet parameter is adjusted by the pump pressure for adjusting the jet pump, works as institute's rheme every time After the displacement signal that displacement sensor detects represents the conduit tripping in target tripping in distance, the controller passes through described more logical Track data collector sends shutdown signal to the jet pump and injection tripping in device, the signal gathered according to each sensor, The controller is chosen under predetermined experiment condition the target water-jet parameter during the tripping in of deep water conduit.
- 4. the simulation system of water-jet parameter during deep water conduit tripping in as claimed in claim 3, it is characterised in that institute It is distribution type fiber-optic pressure sensor to state pressure sensor, and the pressure sensor is along between soil stress measuring point vertically grade Away from setting, and along conduit radial direction spaced set.
- 5. the simulation system of water-jet parameter during deep water conduit tripping in as claimed in claim 3, it is characterised in that institute Stating injection tripping in device includes:Conduit, it has the chamber extended longitudinally;Gland, it is set in the upper end of the conduit;Outage is provided with the gland, the outage connects with the chamber It is logical, discharged for the liquid in the chamber;Drilling assemblies, it includes:Motor, it is provided with rotary shaft;Drilling rod, it is located in the conduit, and its lower end is provided with drill bit, its upper end and the rotation axis connection;Filling head, it is arranged on the upper end of the rotary shaft, injects for liquid in the drilling rod;Balancing weight, it is located at the top of the filling head, for adjusting the pressure of the drill of the drill rod assemblies.
- 6. the simulation system of water-jet parameter during deep water conduit tripping in as claimed in claim 5, it is characterised in that also Include the governor motion of the lower end extension for adjusting the relatively described conduit of the drill bit.
- 7. the simulation system of water-jet parameter during deep water conduit tripping in as claimed in claim 6, it is characterised in that institute Governor motion is stated to be arranged between the gland and the conduit.
- 8. the simulation system of water-jet parameter during deep water conduit tripping in as claimed in claim 7, it is characterised in that institute Governor motion is stated as regulating bolt and the matching mechanism of screwed hole, formed with the first extension extended longitudinally on the gland Portion, first extension are set in the upper end of the conduit, on first extension circumferentially or genesis analysis have it is multiple Screwed hole, the regulating bolt can be located on the screwed hole.
- 9. the simulation system of water-jet parameter during deep water conduit tripping in as claimed in claim 8, it is characterised in that The second extension is additionally provided with the gland and on the inside of first extension, first extension and second prolong Extending portion forms concentric circles ring cavity, the upper end of the conduit can be caught in first extension formed with second extension it is same Heart annulus intracavitary.
- 10. the simulation system of water-jet parameter during deep water conduit tripping in as claimed in claim 5, it is characterised in that Rotary seal ballhead, the filling head and the rotary seal ballhead are provided between the filling head and the rotary shaft It is fixedly connected, the rotary shaft is rotatablely connected with the rotary seal ballhead.
- 11. the simulation system of water-jet parameter during deep water conduit tripping in as claimed in claim 5, it is characterised in that The motor is arranged on the gland, and the motor is electro-motor or fluid motor.
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