CN103132946A - Circulating heating pressurization process applied to wellbore - Google Patents
Circulating heating pressurization process applied to wellbore Download PDFInfo
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- CN103132946A CN103132946A CN 201110445702 CN201110445702A CN103132946A CN 103132946 A CN103132946 A CN 103132946A CN 201110445702 CN201110445702 CN 201110445702 CN 201110445702 A CN201110445702 A CN 201110445702A CN 103132946 A CN103132946 A CN 103132946A
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- circulation
- valve
- pit shaft
- circulating
- wellbore
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title abstract description 10
- 230000008569 process Effects 0.000 title abstract description 6
- 238000005516 engineering process Methods 0.000 claims description 13
- 238000009413 insulation Methods 0.000 claims description 12
- 238000003825 pressing Methods 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 3
- 238000013461 design Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 238000002309 gasification Methods 0.000 claims description 3
- 238000010792 warming Methods 0.000 claims description 3
- 238000004321 preservation Methods 0.000 abstract 1
- 238000005553 drilling Methods 0.000 description 20
- 230000005540 biological transmission Effects 0.000 description 9
- 239000003129 oil well Substances 0.000 description 7
- 230000033001 locomotion Effects 0.000 description 6
- 238000011161 development Methods 0.000 description 5
- 230000018109 developmental process Effects 0.000 description 5
- 239000012530 fluid Substances 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000008236 heating water Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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Abstract
The invention discloses a circulating heating pressurization process applied to a wellbore. The circulating heating pressurization process comprises heating circulation and pressurization circulation, wherein the heating circulation is completed by a circulating pump, an electrical heater, a magnetic exchange valve, the wellbore and a one-way valve; when the temperature of the wellbore is close to the setting temperature, a magnetic valve reversing happens, and the process enters into a heat preservation circulation; and the pressurization circulation is formed by a pressurization pump, a one-way valve, the wellbore and a reducing valve, when pressurization is carried out, the magnetic exchange valve works, media inside the wellbore can flow out from the reducing valve, and the pressure of the reducing valve is set and then the pressure inside the wellbore can be obtained. According to the circulating heating pressurization process, the pressurization pump and the circulating pump are adopted, so a high temperature and high pressure environment inside the wellbore can be achieved; and the circulating pump is not subjected to high pressure, so high pressure requirements are not needed.
Description
Technical field
The present invention relates to a kind of circulating-heating pressing technology that is applied to pit shaft.
Background technology
Oil-well rig produces along with the appearance of boring method, drilling technology, and respective change occurs along with the development of drilling technology again.Since entering 21 century, oil-well rig automation, digitlization, intellectuality, level of IT application fast development.Rig whole drives oil-well rig (AC-GTO-AC) future development towards the ac variable frequency speed regulation electricity.Along with developing rapidly of alternating frequency conversion technique, the AC frequency conversion electric drive rig can replace AC-SCR-DC drive rig, this type rig has modern mechanical and drives rig and the unrivaled superior function of DC drive rig, will become the regeneration product of land and oil-well rig.
Oil-well rig refers to carry out the complete drilling equipment of oil and gas exploration, exploitation.In general, a whole set of rig is comprised of following eight large system equipments:
1. rotary system equipment
In order to rotate drilling tool in well, drive the drill bit fractured rock, rig has been equipped with rotary system.It mainly is comprised of rotating disk, water tap, drill string and drill bit.In addition, water tap, drill string and drill bit also play a part the circulation cleaner for high-pressure drilling fluid.Rotating disk is the core of rotary system, is one of three large work units of rig.Top drive drilling machine has been equipped with top-drive drilling, replaces rotating disk to drive drill string and bit.
2. circulating system equipment
For timely bottom-hole cleaning, cutting carring, the protection borehole wall, rig has been equipped with drilling-fluid circulation system.Mainly contain borehole pump, ground high pressure pipe joint, drill fluid purification equipment and drilling fluid deployment device (solid control equipment) etc.When adopting mud motor to creep into, the circulating system is also being undertaken provides cleaner for high-pressure drilling fluid, drives the task that down-hole turbodrill or helicoid hydraulic motor drive the drill bit fractured rock.Borehole pump is the core of the circulating system, is one of three large work units of rig.
3. hoisting system equipment
Send to etc. for drilling, setting of casing, control the pressure of the drill and drill bit, rig has been equipped with hoisting system, with the auxiliary drillng operation of completing.This complete equipment mainly is comprised of well drilling hoist, auxiliary brake, traveling system (as wire rope, overhead traveling crane, travelling block), hook and derrick.In addition, also be useful on the rig tool that removes operation and mechanized equipment (as suspension ring, elevator, slips, power tongs, thribble movement mechanism etc.).Winch is the core of hoisting system, is one of three large working machines of rig.
Above-mentioned three large system equipments are directly to serve drilling well to produce, and are three large work systems of rig.Winch, rotating disk, borehole pump are called three large work units of rig.
4. power-driven system equipment
Power-driven system equipment refers to provide for a whole set of unit (three large work unit and other auxiliary units) equipment of energy, can be diesel engine and oil-servicing facilities thereof, or interchange, dc motor and power supply thereof, protection, control appliance etc.
5. transmission system equipment
Transmission system equipment refers to connect engine and working machine, realizes the equipment of energy transmission, distribution and motion mode conversion from driving arrangement to the work unit.It comprises slows down and car, reversing and gear etc.Machine driving pair commonly used in rig is mainly chain, bead apex, gear and universal drive shaft.In addition, many rigs have also adopted the type of belt drive such as hydraulic power, hydraulic drive, electric transmission.
Control system and the monitoring Displaying Meter
Carry out work in order to command, control each unit cooperative ground, a whole set of rig is equipped with various control device, and have machinery controls, gas control system, electric control, hydraulic control system and electricity, gas, liquid commonly used mix control.Mechanical powered rig generally adopts centralized and unified gas control system.Modern drilling machine also is equipped with various drilling instruments and measurement-while-drilling system, and monitoring shows the working condition of the relevant system equipment in ground, measures downhole parameters, realizes hole trajectory control.
7. rig substructure
Base comprises drillingrig base and machine room base, is used for drilling equipment is installed, and facilitates the movement of drilling equipment.Drillingrig base is used for installing derrick, rotating disk, places pipe setback and necessary rig tool and driller's console, and majority is also wanted setting winch.Drillingrig base should be able to hold necessary wellhead assembly, therefore, enough height, area and rigidity must be arranged.The machine room base is mainly used in installing powerplant module and transmission system equipment, therefore, also enough areas and rigidity will be arranged, and centering, smooth working and movement can be installed rapidly conveniently to guarantee calculator room equipment.
8. auxiliary equipment
Complete rig also must have air feed equipment, auxiliary generating plant, blowout preventer equipment, rat holing equipment and auxiliary crane gear, also must be equipped with heat-preserving equipment when the cold zone drilling well.
The pattern of oil-well rig is various, can be divided into: drive pattern, driving type, movement mode.
Be divided into by driving pattern: Diesel Driven, electricity drive, hydraulic-driven.Wherein electricity drives and is divided into again: alternating current driving, dc powered, alternating-current variable frequency power drive.
Be divided into by driving type: chain drive, the transmission of V band, gear drive.
Be divided into by the movement mode: packaged formula, self-propelled, pull-type.
Over more than 40 year, process imitated, that introduce digestion, absorb that the China's oil rig has experienced has now entered take independent development as the main stage.Over nearly 10 years, the China's oil drilling rig technique obtains developing the most fast, and manufacturing capacity is greatly improved.The various rigs that China rig manufactory makes satisfy the needs of petroleum exploration in China development self substantially, successively developed the oil-well rig that is suitable for land, desert and ocean operation, drive technology has developed into machine driving, direct current transmission, AC frequency conversion electric transmission and mechanical, electrical Composite Transmission and has developed simultaneously.China has formed the ability of 200, year manufacturing rig, has become global maximum rig manufacturing nation.The China Petroleum that develops into of China's oil drilling rig technique and manufacturing capacity is implemented low cost strategy, and participation competition in the international market and assurance China's oil are had laid a good foundation safely.
Summary of the invention
The object of the invention is to overcome the shortcoming and defect of above-mentioned prior art, a kind of circulating-heating pressing technology that is applied to pit shaft is provided, this circulating-heating pressing technology that is applied to pit shaft adopts a force (forcing) pump and a circulation pump, thereby has realized the high temperature and high pressure environment in pit shaft; Circulation pump does not bear high pressure, need not higher pressure requirement.
Purpose of the present invention is achieved through the following technical solutions: be applied to the circulating-heating pressing technology of pit shaft, comprise the following steps:
Heat cycles: complete warming circulating by circulation pump, electric heater, solenoid operated directional valve, pit shaft, one way valve; During near design temperature, the electromagnetic valve commutation enters the insulation circulation when temperature in wellbore;
Pressurized circulation: formed by force (forcing) pump, one way valve, pit shaft, reducing valve, during pressurization, the electromagnetic switch valve action, the medium in pit shaft can only flow out by reducing valve, and the pressure of setting reducing valve just obtains the interior pressure of pit shaft.
Described insulation circulation namely forms circulation by circulation pump, heater, reversal valve, coil heat exchanger, reducing valve.
The effect of described reducing valve is to keep the certain pressure of insulation circulation, in order to avoid medium gasification in insulation circulation during low-voltage high-temperature.
The pit shaft circulating-heating water booster system that the present invention is used mainly is made of the coil pipe that is arranged on pit shaft inside, and an end of described coil pipe is connected with solenoid operated directional valve, electric heater, circulation pump, force (forcing) pump in turn, then returns to pit shaft inside; The other end of described coil pipe is connected with reducing valve, solenoid operated directional valve in turn, then returns to pit shaft inside.
Be provided with overflow valve between described electric heater and circulation pump.
Be provided with oil filter between described circulation pump and force (forcing) pump.
Also be provided with one way valve between described oil filter and circulation pump.
Also be provided with overflow valve between described force (forcing) pump and pit shaft.
In sum, the invention has the beneficial effects as follows: adopt a force (forcing) pump and a circulation pump, thereby realized the high temperature and high pressure environment in pit shaft; Circulation pump does not bear high pressure, need not higher pressure requirement.
Description of drawings
Fig. 1 is the structural representation of equipment therefor of the present invention.
The specific embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited only to this.
Embodiment:
The circulating-heating pressing technology that is applied to pit shaft that the present invention relates to comprises the following steps:
Heat cycles: complete warming circulating by circulation pump, electric heater, solenoid operated directional valve, pit shaft, one way valve; During near design temperature, the electromagnetic valve commutation enters the insulation circulation when temperature in wellbore;
Pressurized circulation: formed by force (forcing) pump, one way valve, pit shaft, reducing valve, during pressurization, the electromagnetic switch valve action, the medium in pit shaft can only flow out by reducing valve, and the pressure of setting reducing valve just obtains the interior pressure of pit shaft.
Described insulation circulation namely forms circulation by circulation pump, heater, reversal valve, coil heat exchanger, reducing valve.
The effect of described reducing valve is to keep the certain pressure of insulation circulation, in order to avoid medium gasification in insulation circulation during low-voltage high-temperature.
The present invention's pit shaft circulating-heating water booster system used as shown in Figure 1, mainly consisted of by the coil pipe 7 that is arranged on pit shaft 15 inside, one end of described coil pipe 7 is connected with solenoid operated directional valve 6, electric heater 5, circulation pump 3, force (forcing) pump 10 in turn, then returns to pit shaft 15 inside; The other end of described coil pipe is connected with reducing valve 13, solenoid operated directional valve 6 in turn, then returns to pit shaft 15 inside.
Be provided with overflow valve 4 between described electric heater 5 and circulation pump 3.
Be provided with oil filter 1 between described circulation pump 3 and force (forcing) pump 10.
Also be provided with one way valve 2 between described oil filter 1 and circulation pump 3.
Also be provided with overflow valve 4 between described force (forcing) pump 10 and pit shaft 15.
To sum up, because liquid is incompressible, force (forcing) pump only needs very little discharge capacity just can realize the pressure of setting, and its power can select very littlely, and circulation pump does not bear high pressure, need not higher pressure requirement.Adopt a force (forcing) pump and a circulation pump just to realize the interior high temperature and high pressure environment of pit shaft.
The above is only preferred embodiment of the present invention, is not the present invention is done any pro forma restriction, and every foundation technical spirit of the present invention, any simple modification, equivalent variations that above embodiment is done are within all falling into protection scope of the present invention.
Claims (3)
1. be applied to the circulating-heating pressing technology of pit shaft, it is characterized in that, comprise the following steps:
Heat cycles: complete warming circulating by circulation pump, electric heater, solenoid operated directional valve, pit shaft, one way valve; During near design temperature, the electromagnetic valve commutation enters the insulation circulation when temperature in wellbore;
Pressurized circulation: formed by force (forcing) pump, one way valve, pit shaft, reducing valve, during pressurization, the electromagnetic switch valve action, the medium in pit shaft can only flow out by reducing valve, and the pressure of setting reducing valve just obtains the interior pressure of pit shaft.
2. the circulating-heating pressing technology that is applied to pit shaft according to claim 1, is characterized in that, described insulation circulation namely forms circulation by circulation pump, heater, reversal valve, coil heat exchanger, reducing valve.
3. the circulating-heating pressing technology that is applied to pit shaft according to claim 1, is characterized in that, the effect of described reducing valve is to keep the certain pressure of insulation circulation, in order to avoid medium gasification in insulation circulation during low-voltage high-temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110445702 CN103132946A (en) | 2011-11-29 | 2011-11-29 | Circulating heating pressurization process applied to wellbore |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110445702 CN103132946A (en) | 2011-11-29 | 2011-11-29 | Circulating heating pressurization process applied to wellbore |
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| Publication Number | Publication Date |
|---|---|
| CN103132946A true CN103132946A (en) | 2013-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110445702 Pending CN103132946A (en) | 2011-11-29 | 2011-11-29 | Circulating heating pressurization process applied to wellbore |
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| Country | Link |
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| CN (1) | CN103132946A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103639796A (en) * | 2013-11-25 | 2014-03-19 | 大连元利流体技术有限公司 | Machine tool clamping system with gas-liquid boosting pump |
| CN112324369A (en) * | 2019-08-05 | 2021-02-05 | 创升益世(东莞)智能自控有限公司 | Oil-based water-based drilling fluid performance real-time on-site monitoring management system |
-
2011
- 2011-11-29 CN CN 201110445702 patent/CN103132946A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103639796A (en) * | 2013-11-25 | 2014-03-19 | 大连元利流体技术有限公司 | Machine tool clamping system with gas-liquid boosting pump |
| CN112324369A (en) * | 2019-08-05 | 2021-02-05 | 创升益世(东莞)智能自控有限公司 | Oil-based water-based drilling fluid performance real-time on-site monitoring management system |
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Application publication date: 20130605 |