CN105840173B - Drilling corrector and method - Google Patents
Drilling corrector and method Download PDFInfo
- Publication number
- CN105840173B CN105840173B CN201610331894.1A CN201610331894A CN105840173B CN 105840173 B CN105840173 B CN 105840173B CN 201610331894 A CN201610331894 A CN 201610331894A CN 105840173 B CN105840173 B CN 105840173B
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- drilling
- pressure sensor
- drill bit
- collimator
- singlechip
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- 238000005553 drilling Methods 0.000 title claims abstract description 94
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000011435 rock Substances 0.000 claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims description 20
- 239000010959 steel Substances 0.000 claims description 20
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 20
- 229910052721 tungsten Inorganic materials 0.000 claims description 20
- 239000010937 tungsten Substances 0.000 claims description 20
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 239000003112 inhibitor Substances 0.000 claims description 2
- NFFIWVVINABMKP-UHFFFAOYSA-N methylidynetantalum Chemical compound [Ta]#C NFFIWVVINABMKP-UHFFFAOYSA-N 0.000 claims description 2
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 2
- 150000002910 rare earth metals Chemical class 0.000 claims description 2
- 229910003468 tantalcarbide Inorganic materials 0.000 claims description 2
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000012937 correction Methods 0.000 description 12
- 231100000241 scar Toxicity 0.000 description 6
- 238000012545 processing Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 238000013500 data storage Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
-
- 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
- E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
- E21B44/02—Automatic control of the tool feed
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The utility model relates to a drilling corrector and a method. The technical proposal is as follows: the device comprises a drill rod, a drill bit, a collimator, a first pressure sensor, a second pressure sensor and a singlechip; the drill bit is in threaded connection with the drill rod, a collimator is arranged at the lower end of the drill bit, a first pressure sensor and a second pressure sensor are arranged on the side wall of the drill bit, and the singlechip is arranged on the side wall of the drill bit; the first pressure sensor, the second pressure sensor and the collimator are connected with the singlechip. The beneficial effects are that: the drilling corrector is simple in structure and low in cost, the drill bit can automatically adjust the descending speed according to the hardness of different rock layers, drilling is effectively corrected, the number of times of taking out the drill bit is reduced, the one-time success rate of drilling is ensured, the labor intensity of workers is reduced, the consumption of materials is reduced, and the safety coefficient is high.
Description
Technical Field
The utility model relates to the technical field of drilling equipment, in particular to a drilling corrector and a drilling correction method.
Background
Drilling is an engineering of drilling a formation into a cylindrical borehole having a depth using mechanical equipment. Drilling is generally classified into exploration drilling, hydrogeological drilling, water well or engineering geological drilling, petroleum drilling, coal field drilling, building ground drilling, and the like according to the purpose. The drill bit is the indispensable broken rock instrument when well drilling, and the quality of drill bit directly influences the efficiency of well drilling, when meetting hard geological formation, drills into and easily takes place the well deviation, need take out the drill bit and creep into again, has not only wasted a large amount of manpower and materials like this, has prolonged production cycle moreover to the cone of installing on the drill bit easily causes the damage, causes manufacturing cost's rise by a wide margin.
The Chinese patent document publication number is 102486083A, the patent name is drilling corrector, which comprises a carcass, and the carcass is cylindrical in shape; the scar sheet body rings are arranged on the wall of the tire body in a surrounding mode, each scar sheet body ring comprises at least 2 scar sheet bodies, gaps parallel to the axis of the tire body exist among the scar sheet bodies, the outline of the transverse section of each scar sheet body gradually expands outwards from the side wall, and the tip of the outline faces the drilling direction; alloy teeth are embedded in the scar sheet body and are exposed towards the direction of the drilling hole wall. The patent can effectively prevent the suction of the negative pressure in the drilling hole to the wall of the drilling hole, further ensures the smooth lower arrangement of the petroleum casing pipe, but can not ensure that the drilling can still be kept according to the requirement when encountering a hard geological layer, and is in a mechanical operation mode.
The Chinese patent document discloses 204609871U with the patent name of real-time drilling stratum correction prediction system, which comprises a signal acquisition unit, a signal processing unit, a real-time data monitoring unit, a data storage unit, a first data correction unit and a second data correction unit, wherein the signal acquisition unit acquires various parameter signals of drilling well and transmits the signals to the signal processing unit, the signals processed by the signal processing unit are transmitted to the real-time monitoring unit, the real-time monitoring unit respectively transmits the signals to the second data correction unit and the data storage unit, the data storage unit transmits the signals to the first data correction unit for data correction, the corrected data is transmitted to the second data correction unit for processing by the first data correction unit, and the second data correction unit transmits the processed signals to the drilling machine control unit. The utility model realizes real-time prediction and correction, reduces drilling accidents, avoids waste well and useless well, and improves the drilling success rate. The method has the problems that the method is not mainly applied to drilling of the problem that well deviation easily occurs, is used for secondary data correction, does not measure the drilled well track in real time, and is used for judging through analysis processing, and the method is complex in structure and high in cost.
Disclosure of Invention
The utility model aims at solving the defects existing in the prior art, provides a drilling corrector and a method, and aims to solve the problems that drilling is easy to generate well deviation when a hard geological layer is encountered in the existing drilling process, a drill bit is required to be taken out for re-drilling, a large amount of manpower and material resources are wasted, the production period is prolonged, the roller cone installed on the drill bit is easy to damage, the production cost is greatly increased, and the drilling corrector is simple in structure and low in cost.
The utility model relates to a drilling corrector, which adopts the technical scheme that the drilling corrector comprises a drill rod (1), a drill bit (2), a collimator (3), a first pressure sensor (4), a second pressure sensor (5), an AD converter (6), a comparator (7) and a singlechip (8), wherein the drill bit (2) is in spiral connection with the drill rod (1), the collimator (3) is arranged at the lower end of the drill bit (2), and the first pressure sensor (4), the second pressure sensor (5) and the singlechip (8) are arranged on the side wall of the drill bit (2); the first pressure sensor (4), the second pressure sensor (5) and the collimator (3) are connected with the singlechip (8).
The outer sides of the collimator (3), the first pressure sensor (4) and the second pressure sensor (5) are respectively welded with tungsten steel blocks, the tungsten steel blocks (9) are welded on the lower cone part and the upper cylinder part of the drill bit (2) in a negative oblique embedding mode, and the appearance of the tungsten steel blocks adopts a hexagonal structure.
The collimator (3) is used for providing a path for measuring a borehole track drilled, the first pressure sensor (4) and the second pressure sensor (5) directly input detected drilling pressure into the singlechip (8), the singlechip (8) compares values converted by the first pressure sensor (4) and the second pressure sensor (5) through the AD converter (6), and the larger the two-value difference is, the slower the drilling speed of the drill bit is, so that the hard rock stratum is fully drilled; when the difference value of the two values is in the allowable range, the drilling speed of the drill bit is increased, and drilling is performed according to the well deviation control direction measured by the collimator (3), so that the situation that the drilling track deviates from the axis of the borehole is avoided.
The utility model relates to a using method of a drilling corrector, which comprises the following steps:
the method comprises the steps that a drill bit (2) is arranged at the lower end of a drill rod (1), and when drilling, the drill bit (2) contacts rock and breaks the rock under a certain bit pressure to form a borehole;
the second step, in the drilling process, the collimator (3) measures the drilling well track in real time, and the first pressure sensor (4) and the second pressure sensor (5) transmit the detected drilling pressure to the singlechip (8);
and thirdly, comparing the pressure values of the first pressure sensor (4) and the second pressure sensor (5), wherein the larger the difference value is, the slower the drilling speed of the drill bit (2) is, the larger the hardness degree of the rock stratum is, the drilling pressure is adjusted, and when the difference value is in a normal range, the drilling speed of the drill bit (2) is increased, so that the purpose of controlling the drilling direction is achieved, and drilling well deviation is avoided.
The beneficial effects of the utility model are as follows: the drilling corrector is simple in structure and low in cost, the drill bit can automatically adjust the descending speed according to the hardness of different rock layers, drilling is effectively corrected, the number of times of taking out the drill bit is reduced, the one-time success rate of drilling is ensured, the labor intensity of workers is reduced, the consumption of materials is reduced, and the safety coefficient is high; in addition, the tungsten steel block is deposited on the lower cone part and the upper cylinder part of the drill bit in a negative oblique embedding mode, and the tungsten steel block has a hexagonal structure in appearance, so that the tungsten steel block has a good abrasion-resistant effect.
Drawings
FIG. 1 is a schematic diagram of the structure of the utility model without tungsten steel blocks;
FIG. 2 is a schematic view of the appearance of a drill bit with tungsten steel blocks attached;
in the upper graph: the device comprises a drill rod 1, a drill bit 2, a collimator 3, a first pressure sensor 4, a second pressure sensor 5, an AD converter 6, a comparator 7, a singlechip 8 and a tungsten steel block 9.
Detailed Description
The utility model is further described with reference to fig. 1-2:
the utility model relates to a drilling corrector, which adopts the technical scheme that the drilling corrector comprises a drill rod 1, a drill bit 2, a collimator 3, a first pressure sensor 4, a second pressure sensor 5, an AD converter 6, a comparator 7 and a singlechip 8, wherein the drill bit 2 is in spiral connection with the drill rod 1, the collimator 3 is arranged at the lower end of the drill bit 2, and the first pressure sensor 4, the second pressure sensor 5 and the singlechip 8 are arranged on the side wall of the drill bit 2; the first pressure sensor 4, the second pressure sensor 5 and the collimator 3 are connected with the singlechip 8.
The outer sides of the collimator 3, the first pressure sensor 4 and the second pressure sensor 5 are respectively coated and welded with a tungsten steel block 9, the tungsten steel blocks 9 are overlaid on the lower cone part and the upper cylinder part of the drill bit 2 in a negative oblique embedding mode, and the tungsten steel blocks are not arranged at the connecting part between the lower cone part and the upper cylinder part, the tungsten steel blocks are hexagonal in shape and have the length of 10mm and the diagonal broadside of 3mm, the wear resistance of the collimator 3, the first pressure sensor 4, the second pressure sensor 5 and the singlechip 6 is effectively protected by the tungsten steel blocks, when drilling, the drill bit breaks rocks to form a borehole, the wear is unavoidable, and broken rock scraps can wear an instrument, so the wear is controlled to be in the minimum limit; in addition, as different welding modes have certain influence on the use of the drill bit, the welding mode only plays a role in preventing abrasion and is not used as rock breaking, so that the tungsten steel blocks outside the collimator 3, the first pressure sensor 4 and the second pressure sensor 5 adopt a negative oblique embedding mode during overlaying, thereby prolonging the service life and protecting the abrasion of the outer diameter of the drill bit; the formula of the tungsten steel block is as follows: 15 parts of bonding metal consisting of 95% of metal Co and 5% of metal Cr, 0.3 part of rare earth metal Ce, 1 part of inhibitor tantalum carbide and 80 parts of tungsten carbide.
In addition, the collimator 3 is used for providing a path for measuring the borehole track of drilling, the first pressure sensor 4 and the second pressure sensor 5 directly input the detected drilling pressure into the singlechip 8, the singlechip 8 compares the values converted by the first pressure sensor 4 and the second pressure sensor 5 through the AD converter 6, and the larger the two-value difference is, the slower the drilling speed of the drill bit is, so that the hard rock stratum is fully drilled; when the difference value of the two values is in the allowable range, the drilling speed of the drill bit is increased, and drilling is performed according to the well deviation control direction measured by the collimator 3, so that the situation that the drilling track deviates from the axis of the borehole is avoided.
The singlechip used in the utility model is as follows: the AD converter of the avr singlechip can directly convert analog signals transmitted by the pressure sensor into AD signals. The Avr singlechip uses a 5v power supply to supply power, 7805 is used in the power supply part, the voltage of the storage battery is converted into the voltage which can be used by the singlechip, and meanwhile, the power supply voltage is stabilized at 5v.
The singlechip receives analog signals sent by the two pressure sensors, converts the analog signals into corresponding AD values, compares the two digital values in the singlechip, and adjusts the drilling speed or angle according to the comparison value.
The signals of the collimator are also directly input into the singlechip, and the singlechip converts the analog signals of the collimator into digital signals and makes corresponding adjustment according to the digital values.
The pressure sensor and the collimator can select 4-20 mA output type, and can be converted into signals acceptable by the singlechip through a circuit, or directly select 0-5V output type, and directly connected to the singlechip.
In order to improve the conversion precision and the working reliability, the singlechip is externally connected with the crystal oscillator, and a watchdog is started in a singlechip program, so that the reliability can be further improved.
The utility model relates to a using method of a drilling corrector, which comprises the following steps:
the first step, the drill bit 2 is installed at the lower end of the drill rod 1, and when drilling, the drill bit 2 contacts the rock and breaks the rock under a certain bit pressure to form a borehole;
the second step, in the drilling process, the collimator 3 measures the drilling well track in real time, and the first pressure sensor 4 and the second pressure sensor 5 transmit the detected drilling pressure to the singlechip 8;
and thirdly, comparing the pressure values of the first pressure sensor 4 and the second pressure sensor 5, wherein the larger the difference value is, the slower the drilling speed of the drill bit 2 is, the larger the hardness degree of the rock stratum is, the drilling pressure is adjusted, and when the difference value is in a normal range, the drilling speed of the drill bit 2 is increased, so that the purpose of controlling the drilling direction is achieved, and drilling well deviation is avoided.
The above description is only a few preferred embodiments of the present utility model, and any person skilled in the art may make modifications to the above described embodiments or make modifications to the same. Therefore, any simple modification or equivalent made according to the technical solution of the present utility model falls within the scope of the protection claimed by the present utility model.
Claims (1)
1. A drilling corrector, characterized by: the automatic drilling device comprises a drill rod (1), a drill bit (2), a collimator (3), a first pressure sensor (4), a second pressure sensor (5), an AD converter (6), a comparator (7) and a singlechip (8), wherein the drill bit (2) is in spiral connection with the drill rod (1), the collimator (3) is arranged at the lower end of the drill bit (2), and the first pressure sensor (4), the second pressure sensor (5) and the singlechip (8) are arranged on the side wall of the drill bit (2); the first pressure sensor (4), the second pressure sensor (5) and the collimator (3) are connected with the singlechip (8);
the outer sides of the collimator (3), the first pressure sensor (4) and the second pressure sensor (5) are respectively welded with tungsten steel blocks (9), the tungsten steel blocks (9) are welded on the lower cone part and the upper cylinder part of the drill bit (2) in a negative oblique embedding mode, and the appearance of the tungsten steel blocks adopts a hexagonal structure;
wherein, the formula of the tungsten steel block is: 15 parts of bonding metal consisting of 95% of metal Co and 5% of metal Cr, 0.3 part of rare earth metal Ce, 1 part of inhibitor tantalum carbide and 80 parts of tungsten carbide;
the collimator (3) is used for providing a path for measuring a borehole track drilled, the first pressure sensor (4) and the second pressure sensor (5) directly input detected drilling pressure into the single chip microcomputer (8), the single chip microcomputer (8) compares values converted by the first pressure sensor (4) and the second pressure sensor (5) through the AD converter (6), and the larger the two-value difference is, the slower the drilling speed of the drill bit is, so that the hard rock stratum is fully drilled; when the difference value of the two values is in the allowable range, the drilling speed of the drill bit is increased, and drilling is performed according to the well deviation control direction measured by the collimator (3), so that the situation that the drilling track deviates from the axis of the borehole is avoided;
the using method of the drilling corrector comprises the following steps:
the method comprises the steps that a drill bit (2) is arranged at the lower end of a drill rod (1), and when drilling, the drill bit (2) contacts rock and breaks the rock under a certain bit pressure to form a borehole;
the second step, in the drilling process, the collimator (3) measures the drilling well track in real time, and the first pressure sensor (4) and the second pressure sensor (5) transmit the detected drilling pressure to the singlechip (8);
and thirdly, comparing the pressure values of the first pressure sensor (4) and the second pressure sensor (5), wherein the larger the difference value is, the slower the drilling speed of the drill bit (2) is, the larger the hardness degree of the rock stratum is, the drilling pressure is adjusted, and when the difference value is in a normal range, the drilling speed of the drill bit (2) is increased, so that the purpose of controlling the drilling direction is achieved, and drilling well deviation is avoided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610331894.1A CN105840173B (en) | 2016-05-18 | 2016-05-18 | Drilling corrector and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610331894.1A CN105840173B (en) | 2016-05-18 | 2016-05-18 | Drilling corrector and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105840173A CN105840173A (en) | 2016-08-10 |
| CN105840173B true CN105840173B (en) | 2023-09-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201610331894.1A Active CN105840173B (en) | 2016-05-18 | 2016-05-18 | Drilling corrector and method |
Country Status (1)
| Country | Link |
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| CN (1) | CN105840173B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4733733A (en) * | 1986-02-11 | 1988-03-29 | Nl Industries, Inc. | Method of controlling the direction of a drill bit in a borehole |
| CN101380698B (en) * | 2008-10-09 | 2011-08-10 | 苏州新锐硬质合金有限公司 | Novel tubular hard surfacing material |
| CN102486083B (en) * | 2010-12-06 | 2014-10-22 | 淮南矿业(集团)有限责任公司 | Well drilling corrector |
| CN104727815A (en) * | 2015-03-15 | 2015-06-24 | 河北百冠钻井设备有限公司 | Real-time well drilling formation correction method and device |
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2016
- 2016-05-18 CN CN201610331894.1A patent/CN105840173B/en active Active
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| CN105840173A (en) | 2016-08-10 |
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| C06 | Publication | ||
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| TA01 | Transfer of patent application right |
Effective date of registration: 20230809 Address after: 257000 No. 15 Heping Road, Dongying District, Dongying City, Shandong Province Applicant after: Training center of Sinopec Shengli Petroleum Engineering Co.,Ltd. Address before: 257000 Training School of Shengli Oilfield Yellow River Drilling Company No. 5, Dong'an Town, Kenli County, Dongying City, Shandong Province Applicant before: Du Shudong |
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