CN103132985A - Automatic bit feed control method applied to oil rig - Google Patents
Automatic bit feed control method applied to oil rig Download PDFInfo
- Publication number
- CN103132985A CN103132985A CN 201110445330 CN201110445330A CN103132985A CN 103132985 A CN103132985 A CN 103132985A CN 201110445330 CN201110445330 CN 201110445330 CN 201110445330 A CN201110445330 A CN 201110445330A CN 103132985 A CN103132985 A CN 103132985A
- Authority
- CN
- China
- Prior art keywords
- oil
- pressure
- winch
- rig
- bit feed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The invention discloses an automatic bit feed control method applied to an oil rig. The method comprises that (a) at first, signals are detected through a tension sensor arranged between a winch and a drilling tool, and then are fed back to a bit pressure regulator; (b) then, the signals are detected through a speed sensor arranged between a rotary cylinder and the winch, and then are fed back to a speed regulator; (c) the bit pressure regulator and the speed regulator control a bit feed motor; and (d) the bit feed motor drives the rotary cylinder and the winch, and finally automatic bit feed of an oil drilling machine is achieved. Through double closed loop control of speed feedback and pressure feedback, automation control is achieved, operation is simple, convenient, and fast, strength is saved, accurate control can be carried out in a long distance, and stability of the drilling rate of a system is improved due to introduction of the speed feedback.
Description
Technical field
The present invention relates to a kind of automatic bit feed control method that is applied to oil-well rig.
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.
The complete system that modern oil-well rig is comprised of as machine the multiplex (MUX).In the course of the work, according to the needs of drilling technology, each working machine, must be guaranteed by control system in sequence and regular movement for this reason.Sensitivity, accurate, a reliable and secure control system can make rig be in the optimal movement state, and obtain economic benefit preferably.
Summary of the invention
The object of the invention is to overcome the shortcoming and defect of above-mentioned prior art, a kind of automatic bit feed control method that is applied to oil-well rig is provided, this is applied to the automatic bit feed control method Negotiation speed feedback of oil-well rig and two closed-loop controls of pressure feedback, realized automation control, simple, convenient, rapidly laborsaving, can control accurately at a distance, the introducing of speed feedback has improved the stability of the drilling speed of system.
Purpose of the present invention is achieved through the following technical solutions: be applied to the automatic bit feed control method of oil-well rig, comprise the following steps:
(a) at first, by being arranged on the pulling force sensor detection signal between winch and drilling tool, then feed back to the pressure of the drill adjuster;
(b) then, by being arranged on the velocity sensor detection signal between cylinder and winch, then feed back to speed regulator;
(c) the pressure of the drill adjuster and speed regulator are controlled and are sent the brill motor;
(d) send brill driven by motor cylinder and winch, finally realize the oil-well rig automatic bit feed.
The signal that described pulling force sensor detects is sent to the pressure of the drill adjuster by the A/D transmitter.
The signal that described velocity sensor detects changes transmitter by scale and is sent to speed regulator.
After described the pressure of the drill adjuster and speed regulator are realized frequency conversion by frequency converter, control sending the brill motor.
The oil-well rig automatic bit feed control system that the present invention is used, mainly by be arranged on the pulling force sensor between winch and drilling tool and be arranged on cylinder and winch between velocity sensor consist of, described pulling force sensor is connected with the pressure of the drill adjuster, velocity sensor is connected with speed regulator, described the pressure of the drill adjuster is connected with sending the brill motor with speed regulator, and send the brill motor to be connected with cylinder by the chain transmission.
Described pulling force sensor is connected with the pressure of the drill adjuster by the A/D converter.
Described velocity sensor changes transmitter by scale and is connected with speed regulator.
Described the pressure of the drill adjuster and speed regulator are connected by frequency converter with sending to bore between motor.
Described pulling force sensor is connected with fast line, and the other end of this fast line is arranged between winch and drilling tool.
In sum, the invention has the beneficial effects as follows: two closed-loop controls of Negotiation speed feedback and pressure feedback, realized automation control, simple, convenient, rapidly laborsaving, can control accurately at a distance, the introducing of speed feedback has improved the stability of the drilling speed of system.
Description of drawings
Fig. 1 is the structural representation of system for use in carrying 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 automatic bit feed control method that is applied to oil-well rig that the present invention relates to comprises the following steps:
(a) at first, by being arranged on the pulling force sensor detection signal between winch and drilling tool, then feed back to the pressure of the drill adjuster;
(b) then, by being arranged on the velocity sensor detection signal between cylinder and winch, then feed back to speed regulator;
(c) the pressure of the drill adjuster and speed regulator are controlled and are sent the brill motor;
(d) send brill driven by motor cylinder and winch, finally realize the oil-well rig automatic bit feed.
The signal that described pulling force sensor detects is sent to the pressure of the drill adjuster by the A/D transmitter.
The signal that described velocity sensor detects changes transmitter by scale and is sent to speed regulator.
After described the pressure of the drill adjuster and speed regulator are realized frequency conversion by frequency converter, control sending the brill motor.
For the analogic drilling process, system has load cylinder.Load cylinder can apply disturbance to the pressure of the drill, the respond of observing system, research drilling control rule.In actual drilling process, the pressure of the drill one regularly drilling speed is also certain.When the experiment rig was simulated, in order to guarantee permanent the pressure of the drill when creeping into, load cylinder should be to become the particular flow rate operation of certain relation with rate of penetration for this reason.Break this relation and just completed the interpolation of disturbance, when flow during greater than this particular flow rate the pressure of the drill increase, otherwise the pressure of the drill reduces.
The present invention's oil-well rig automatic bit feed control system used as shown in Figure 1, mainly by be arranged on the pulling force sensor between winch and drilling tool and be arranged on cylinder and winch between velocity sensor consist of, described pulling force sensor is connected with the pressure of the drill adjuster, velocity sensor is connected with speed regulator, described the pressure of the drill adjuster is connected with sending the brill motor with speed regulator, and send the brill motor to be connected with cylinder by the chain transmission.
Described pulling force sensor is connected with the pressure of the drill adjuster by the A/D converter.
Described velocity sensor changes transmitter by scale and is connected with speed regulator.
Described the pressure of the drill adjuster and speed regulator are connected by frequency converter with sending to bore between motor.
Described pulling force sensor is connected with fast line, and the other end of this fast line is arranged between winch and drilling tool.
Control principle of the present invention: the pressure sensor hydraulic coupling that the rope tension sensor sends here of checkmating becomes the signal of telecommunication, and is connected with PLC analog input mouth.PLC carries out A/D sampling to it, and with its carry out after scale conversion with given the pressure of the drill relatively, the deviation after relatively enters the pressure of the drill adjuster, tach signal and the actual drilling speed of adjuster output relatively form new deviation, provide input signal to the drilling speed adjuster.Speed regulator directly is connected with frequency converter, and drive motors rotates, and drive winch and drilling tool and move, and the migration of drilling tool has caused the variation of the pressure of the drill in the load oil cylinder, thereby changed fast line pull.That is to say that fast line pull has directly reflected the size of the pressure of the drill.
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 (4)
1. be applied to the automatic bit feed control method of oil-well rig, it is characterized in that, comprise the following steps:
(a) at first, by being arranged on the pulling force sensor detection signal between winch and drilling tool, then feed back to the pressure of the drill adjuster;
(b) then, by being arranged on the velocity sensor detection signal between cylinder and winch, then feed back to speed regulator;
(c) the pressure of the drill adjuster and speed regulator are controlled and are sent the brill motor;
(d) send brill driven by motor cylinder and winch, finally realize the oil-well rig automatic bit feed.
2. the automatic bit feed control method that is applied to oil-well rig according to claim 1, is characterized in that, the signal that described pulling force sensor detects is sent to the pressure of the drill adjuster by the A/D transmitter.
3. the automatic bit feed control method that is applied to oil-well rig according to claim 1, is characterized in that, the signal that described velocity sensor detects changes transmitter by scale and is sent to speed regulator.
4. the automatic bit feed control method that is applied to oil-well rig according to claim 1, is characterized in that, after described the pressure of the drill adjuster and speed regulator are realized frequency conversion by frequency converter, controls sending the brill motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110445330 CN103132985A (en) | 2011-11-29 | 2011-11-29 | Automatic bit feed control method applied to oil rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110445330 CN103132985A (en) | 2011-11-29 | 2011-11-29 | Automatic bit feed control method applied to oil rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103132985A true CN103132985A (en) | 2013-06-05 |
Family
ID=48493367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110445330 Pending CN103132985A (en) | 2011-11-29 | 2011-11-29 | Automatic bit feed control method applied to oil rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103132985A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108386129A (en) * | 2018-04-03 | 2018-08-10 | 中国地质大学（武汉） | One kind latent ground oil exploitation machine |
-
2011
- 2011-11-29 CN CN 201110445330 patent/CN103132985A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108386129A (en) * | 2018-04-03 | 2018-08-10 | 中国地质大学（武汉） | One kind latent ground oil exploitation machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104373120B (en) | Control system and control method of logging drilling sidewall coring tool | |
| CN103089145B (en) | Down-the-hole hammer power head of rotary drilling rig and rotary drilling rig | |
| CN101382069A (en) | Continuous tube horizontal borehole process and device | |
| CN103132983A (en) | Automatic bit feeding control system of petroleum drilling machine | |
| CN104389520A (en) | Electric-driven directional crossing chambering method | |
| CN104141455B (en) | Drilling rig apparatus and drilling method of drilling rig | |
| CN103132984A (en) | Automatic bit feeding control system of petroleum drilling machine and automatic bit feeding control method thereof | |
| CN103132975A (en) | Gas control system used for drilling machine and gas control method thereof | |
| CN103132978A (en) | Lifting control system of drill column of petroleum drilling machine | |
| CN203655152U (en) | Variable-frequency electric driven top driver type rock core drilling machine for geological core drilling exploration | |
| CN103138654A (en) | Electric control method of well drilling motor | |
| CN103132985A (en) | Automatic bit feed control method applied to oil rig | |
| CN104832164B (en) | A kind of wired drilling survey tool | |
| CN202990848U (en) | Drilling-rod-free geological drilling device | |
| CN203347720U (en) | Intelligent well logging smoothing machine | |
| CN103132976A (en) | Electric control system applied to well drilling motor | |
| CN103138658A (en) | Electric control system for drilling well motor and electric control technology thereof | |
| CN103132977A (en) | Ascending-descending control method applied to oil rig drill column | |
| CN103132946A (en) | Circulating heating pressurization process applied to wellbore | |
| CN202451046U (en) | Dual-purpose integral hydraulic power head of long spiral drilling machine | |
| Jiarong et al. | The development of deep borehole permanent-magnet motor direct drive top-driving drilling rig | |
| CN103132919A (en) | Oil field derrick hoisting and landing control method | |
| CN103136409A (en) | Modeling method for finite element analysis of oil device | |
| CN103136408A (en) | Modeling method for finite element analysis of oil device | |
| CN103132972A (en) | Pneumatic control method applied to drilling machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130605 |