CN106089194A - Utilize azimuthal resistivity with the apparatus and method of probing geodetic bed boundary - Google Patents
Utilize azimuthal resistivity with the apparatus and method of probing geodetic bed boundary Download PDFInfo
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- CN106089194A CN106089194A CN201610703861.5A CN201610703861A CN106089194A CN 106089194 A CN106089194 A CN 106089194A CN 201610703861 A CN201610703861 A CN 201610703861A CN 106089194 A CN106089194 A CN 106089194A
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000012360 testing method Methods 0.000 claims abstract description 11
- 230000006698 induction Effects 0.000 claims description 21
- 230000005284 excitation Effects 0.000 claims description 10
- 230000015572 biosynthetic process Effects 0.000 claims description 9
- 238000005553 drilling Methods 0.000 abstract description 12
- 238000005259 measurement Methods 0.000 abstract description 9
- 238000004364 calculation method Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011435 rock Substances 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
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling 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
- E21B47/00—Survey of boreholes or wells
- E21B47/09—Locating or determining the position of objects in boreholes or wells, e.g. the position of an extending arm; Identifying the free or blocked portions of pipes
- E21B47/092—Locating or determining the position of objects in boreholes or wells, e.g. the position of an extending arm; Identifying the free or blocked portions of pipes by detecting magnetic anomalies
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
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- 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)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention discloses a kind of utilize azimuthal resistivity with probing geodetic bed boundary apparatus and method, this device non magnetic drill collar, it is as the carrier of whole device, is provided with a compensation resistivity test point；Circuit unit, it is arranged on the inside of non magnetic drill collar；Several antennas and the antenna harmony unit corresponding with each antenna are respectively arranged the periphery in non magnetic drill collar, and are connected with circuit unit.Resistivity measurement and azimuthal resistivity that the present invention comprises routine are measured, and utilize azimuthal resistivity measured value to carry out the distance of this device distance bed boundary of analytical calculation, provide valuable real-time geologic data for drilling well, reach to optimize the purpose of drilling quality.
Description
Technical field
The present invention relates to a kind of utilize azimuthal resistivity with probing for geological prospecting in oil exploration drilling engineering
The apparatus and method of geodetic bed boundary.
Background technology
In drilling engineering, spudder author and geomatics engineer need to understand the working condition of downhole tool, well at any time
The eye form of track and stratum and downhole environment parameter, real-time geosteering is extremely important to oil-gas exploration.Geosteering
Purpose is to keep drill bit to advance in oil reservoir as far as possible, and this needs the real-time distance understanding bottomhole and bed boundary.
Conventional electromagnetic ripple resistivity tool utilizes along axial arranged longitudinal coil system (the i.e. magnetic dipole of coil of instrument
Sub-direction is coaxial with instrument) Formation Resistivity Measurement.Its measurement result is substantially the overall effect of the formation resistivity in ring well week
Really, insensitive to formation resistivity change in orientation.The more important thing is, conventional electromagnetic ripple resistivity is difficult to determine High angle
Or horizontal hole is from the distance of upper and lower bed boundaries, especially it is difficult to determine direction.The limitation of conventional electromagnetic ripple resistivity meter
Property shows that it cannot meet the demand of accurate geosteering and formation evaluation.
With boring orientation electromagnetic wave resistivity logging instrument, there is conventional electromagnetic ripple resistivity and the measurement of azimuthal resistivity simultaneously
Function, thus stratigraphic dip, Resistivity Characteristics can be obtained.Fig. 3 illustrates one section of stratum intercepted, by upper casing, lower country rock
Layer and oil reservoir form.Utilize conventional electromagnetic wave to compensate resistivity, generally can readily tell the resistance of oil reservoir and casing
Rate difference.But, owing to laterally fathoming of conventional electromagnetic wave compensation resistivity is the least, in this model simplified
Down-hole equipment track shown in, only when drill bit pass oil reservoir enter upper casing time, resistivity measurements just can change.
Azimuthal resistivity device of the present invention can measure the distance of drilling tool and bed boundary in real time, records brill in a model during A point
Tool away from interface, lower section closer to, record during B point in a model drilling tool away from interface, top closer to, thus judge that oil reservoir is downward-sloping,
Accordingly, wellbore trace can be adjusted in advance downward-sloping to avoid drill bit to pass oil reservoir.
Utilize the accurate geosteering that azimuthal resistivity is more beneficial in drilling process with probing geodetic bed boundary, to raising
The rate of oil and gas recovery, reduction operating cost and risk have important function.
Summary of the invention
It is an object of the invention to provide a kind of utilize azimuthal resistivity with probing geodetic bed boundary apparatus and method, comprise
Conventional resistivity measurement and azimuthal resistivity are measured, and utilize azimuthal resistivity measured value to come this device distance stratum of analytical calculation
The distance at interface, provides valuable real-time geologic data for drilling well, reaches to optimize the purpose of drilling quality.
In order to realize object above, the present invention is achieved by the following technical solutions:
A kind of utilize azimuthal resistivity with probing geodetic bed boundary device, be characterized in, comprise:
Non magnetic drill collar, it is as the carrier of whole device, is provided with a compensation resistivity test point；
Circuit unit, it is arranged on the inside of non magnetic drill collar；
Several antennas and the antenna harmony unit corresponding with each antenna are respectively arranged the periphery in non magnetic drill collar, and with
Circuit unit is connected.
An antenna harmony unit is installed on the side of each antenna, several described antennas be respectively first antenna,
Two antennas, third antenna, the 4th antenna, the 5th antenna, the 6th antenna and the 7th antenna.
Described first antenna, the second antenna, the 6th antenna and the 7th antenna for launching antenna, described third antenna,
4th antenna and the 5th antenna are reception antenna.
The 5th described antenna is made up of a pair coil being symmetricly set on non magnetic drill collar central axis both sides, a pair coil
Core arrange respectively multiple magnetic core stick, be provided with antenna cover outside described coil, described antenna cover offers slotted eye, described
Slotted eye and the position one_to_one corresponding of magnetic core stick.
Described first antenna is closed respectively with the 7th antenna, the second antenna and the 6th antenna, third antenna and the 4th antenna
Symmetrical in compensating resistivity test point；
The 5th described antenna is positioned at the second antenna and the symmetrical centre of the 7th antenna.
A kind of utilize azimuthal resistivity with the method for probing geodetic bed boundary, it is characterised in that the method comprises following step
Rapid:
S1, records formation resistivity R compensated at resistivity test point；
S2, circuit unit excite the second antenna and the 7th antenna, and the excitation direction of the second antenna and the 7th antenna is consistent；
S3, the excitation signal that the 5th antenna induction sends to the second antenna, induction is AS1；5th antenna induction is to the 7th
The excitation signal of antenna, induction is AS2, calculates induction AS=| (AS1-AS2)/2 | after compensating；
S4, base area layer resistivity R and induction AS, search stratigraphic model chart board, it is thus achieved that device and the distance detecting interface.
The present invention compared with prior art, has the advantage that
1, the antenna that each antenna tuning unit distance is corresponding is very near, installs simpler, and connection wire between the two is the shortest, more
Easily dimmable each antenna, to required parameter, is more conducive to reduce interference, improve temperature stability.
2, the 5th antenna only receives the electromagnetic wave ray in the range of forming an angle with this antenna axis, therefore has very
Strong directivity, and investigation depth is conventional resistive rate investigation depth several times.
3, first antenna and the 7th antenna, the second antenna and the 6th antenna, third antenna and the 4th antenna are respectively about benefit
Repay resistivity test point symmetrical；5th antenna is positioned at the second antenna and the symmetrical centre of the 7th antenna, makes the second antenna and the 7th day
The function of line is able to multiplexing, achieves four double compensation resistivity of receiving with less antenna number and sends out a receipts compensation orientation resistance with double
The function of rate.
4, the ingenious feature utilizing antenna sets, it is thus achieved that azimuthal resistivity influence value through overcompensation, therefore it is more
Accurately；And utilize device metrophia compensation resistivity and the function of azimuthal resistivity, layer model chart board in combination simultaneously, real-time obtains
Device to the distance of bed boundary, this combine the method for actual measurement, theory and empirical data more efficiently and accurately, make more
Be conducive to the accurate geosteering in drilling process.
Accompanying drawing explanation
Fig. 1 is that the present invention is a kind of utilizes azimuthal resistivity with the device of probing geodetic bed boundary
Fig. 2 is the structural representation of azimuth anteena；
Fig. 3 be in background technology azimuthal resistivity with probing geodetic bed boundary effect schematic diagram；
Fig. 4 is the azimuthal resistivity method schematic diagram with probing geodetic bed boundary；
Fig. 5 is device azimuth anteena response schematic diagram when bed boundary different distance；
Fig. 6 is to calculate the device stratigraphic model chart board away from bed boundary distance.
Detailed description of the invention
Below in conjunction with accompanying drawing, by describing a preferably specific embodiment in detail, the present invention is further elaborated.
Utilize azimuthal resistivity with the device of probing geodetic bed boundary as it is shown in figure 1, a kind of, comprise: non magnetic drill collar 1, its
As the carrier of whole device, it is provided with a compensation resistivity test point 11；Circuit unit 2, it is arranged on the inside of non magnetic drill collar 1；
Several antennas and the antenna harmony unit 4 corresponding with each antenna are respectively arranged in the periphery of non magnetic drill collar 1, and with electricity
Road unit 2 is connected, and the function of circuit unit 2 is to control transmitting and the reception of antenna, is analyzed and calculates, antenna tuning unit
The function of 4 is to compensate respectively by the electric characteristic of each antenna, makes antenna performance reach to design requirement.
An antenna harmony unit 4 is installed on the side of each antenna, several described antennas be respectively first antenna 3,
Second antenna 5, third antenna the 6, the 4th antenna the 7, the 5th antenna the 8, the 6th antenna 9 and the 7th antenna 10.
Wherein compensating resistivity test point 11 is virtual apparatus measures point, and first antenna 3 and the 7th antenna 10 are away from this point
38.5 inches, the second antenna 5 and the 6th antenna 9 away from this point 17.5 inches, third antenna 6 and the 4th antenna 7 away from this point 3.5 English
Very little, the 5th day this point of line-spacing 10.5 inches.Second antenna 5 and the 7th antenna 10 distance away from the 5th antenna 8 are 28 inches.
Above-mentioned first antenna the 3, second antenna 5, the 6th antenna 9 and the 7th antenna 10 are for launching antenna, described the 3rd
Antenna, the 4th antenna and the 5th antenna are reception antenna, and third antenna and the 4th antenna are direction-free reception antenna, the 5th
Antenna is the reception antenna of orientation-sensitive.
See Fig. 4, TX2 mirror image and TX4 mirror image is virtual-antenna, respectively oppositely bed boundary and the second antenna 5 and the 7th
Antenna 10 is symmetrical.In certain time period, the second antenna 5 and the 7th antenna 10 successively excitation vector electromagnetic wave to the right, through ground
The bed boundary reflection to electromagnetic wave, is sensed by the 5th antenna 8, and it is from TX2 mirror image that its induction is equivalent to excite electromagnetic wave
Send with TX4 mirror image.
See Fig. 5, if the 5th antenna 8 induction AS1, the 5th antenna when the 7th antenna excites when the second antenna 5 excites
Induction AS2, the most in theory AS1 with AS2 answer that absolute value is equal, opposite in phase, and when device and bed boundary are the most remote
Induction is the least.
Due to instrument error during fabrication, AS1 Yu AS2 be meeting deviation on absolute value.In order to compensate removal error,
After AS2 phase place is negated, value AS after being compensated, i.e. AS=of averaging with AS1 | (AS1-AS2)/2 |.
Seeing Fig. 6, stratigraphic model chart board is formed by series of theories data and empirical data, base area layer resistivity R and
Induction AS, searches stratigraphic model chart board, it is thus achieved that device and the distance detecting interface.
It addition, the mutual mirror of AS1 Yu AS2 is to eliminating the formation resistivity anisotropy shadow to orientation resistivity measurement
Ring, thus the response of prominent stratigraphic boundary.
As in figure 2 it is shown, the 5th above-mentioned antenna is by a pair coil being symmetricly set on non magnetic drill collar central axis both sides
(201,204) form, and the core of a pair coil is arranged multiple magnetic core stick 203 respectively, is provided with antenna cover outside described coil 203
205, described antenna cover offers the position one_to_one corresponding of slotted eye, described slotted eye and magnetic core stick 203.
Above-mentioned first antenna 3 and the 7th antenna the 10, second antenna 5 and the 6th antenna 9, third antenna 6 and the 4th antenna 7
Symmetrical respectively about compensating resistivity test point 11, form four double receipts and compensate conventional resistive rate, Formation Resistivity Measurement R；
The 5th described antenna 8 is positioned at the second antenna 5 and symmetrical centre of the 7th antenna 10, and the double receipts of generating of composition compensate orientation electricity
Resistance rate.
A kind of utilize azimuthal resistivity with probing geodetic bed boundary method, the method comprises the steps of:
S1, records formation resistivity R compensated at resistivity test point by conventional method；
S2, circuit unit excites the second antenna 5 and the 7th antenna 10, and the second antenna 5 and excitation direction one of the 7th antenna 10
Cause；
S3, the 5th antenna 8 senses the excitation signal that the second antenna 5 sends, and induction is AS1；5th antenna 8 senses
The excitation signal of seven antennas 10, induction is AS2, calculates induction AS=| (AS1-AS2)/2 | after compensating；
S4, base area layer resistivity R and induction AS, search stratigraphic model chart board, it is thus achieved that device and the distance detecting interface.
In sum, the present invention is a kind of utilizes azimuthal resistivity with the device of probing geodetic bed boundary, comprises the electricity of routine
Resistance rate is measured and azimuthal resistivity is measured, utilize azimuthal resistivity measured value come this device of analytical calculation distance bed boundary away from
From, provide valuable real-time geologic data for drilling well, reach to optimize the purpose of drilling quality.
Although present disclosure has been made to be discussed in detail by above preferred embodiment, but it should be appreciated that above-mentioned
Description is not considered as limitation of the present invention.After those skilled in the art have read foregoing, for the present invention's
Multiple amendment and replacement all will be apparent from.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (6)
1. one kind utilizes azimuthal resistivity with the device of probing geodetic bed boundary, it is characterised in that comprise:
Non magnetic drill collar, it is as the carrier of whole device, is provided with a compensation resistivity test point；
Circuit unit, it is arranged on the inside of non magnetic drill collar；
Several antennas and the antenna harmony unit corresponding with each antenna are respectively arranged the periphery in non magnetic drill collar, and with
Circuit unit is connected.
Utilize azimuthal resistivity with the device of probing geodetic bed boundary the most as claimed in claim 1, it is characterised in that Mei Getian
An antenna harmony unit is all installed on the side of line, several described antennas be respectively first antenna, the second antenna, the 3rd day
Line, the 4th antenna, the 5th antenna, the 6th antenna and the 7th antenna.
Utilize azimuthal resistivity with the device of probing geodetic bed boundary the most as claimed in claim 2, it is characterised in that described
First antenna, the second antenna, the 6th antenna and the 7th antenna for launching antenna, described third antenna, the 4th antenna and the 5th
Antenna is reception antenna.
Utilize azimuthal resistivity with the device of probing geodetic bed boundary the most as claimed in claim 2, it is characterised in that described
5th antenna is made up of a pair coil being symmetricly set on non magnetic drill collar central axis both sides, and the core of a pair coil is arranged respectively
Multiple magnetic core stick, are provided with antenna cover outside described coil, described antenna cover offers slotted eye, described slotted eye and magnetic core stick
Position one_to_one corresponding.
Utilize azimuthal resistivity with the device of probing geodetic bed boundary the most as claimed in claim 2, it is characterised in that described
First antenna and the 7th antenna, the second antenna and the 6th antenna, third antenna and the 4th antenna are surveyed respectively about compensating resistivity
Point symmetry；
The 5th described antenna is positioned at the second antenna and the symmetrical centre of the 7th antenna.
6. one kind utilizes azimuthal resistivity with the method for probing geodetic bed boundary, it is characterised in that the method comprises the steps of:
S1, records formation resistivity R compensated at resistivity test point；
S2, circuit unit excites the second antenna and the 7th antenna, and the excitation direction of the second antenna and the 7th antenna is consistent；
S3, the excitation signal that the 5th antenna induction sends to the second antenna, induction is AS1；5th antenna induction is to the 7th
The excitation signal of antenna, induction is AS2, calculates induction AS=| (AS1-AS2)/2 | after compensating；
S4, base area layer resistivity R and induction AS, search stratigraphic model chart board, it is thus achieved that device and the distance detecting interface.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610703861.5A CN106089194B (en) | 2016-08-22 | 2016-08-22 | Apparatus and method for formation interface measurement while drilling using azimuthal resistivity |
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|---|---|---|---|
| CN201610703861.5A CN106089194B (en) | 2016-08-22 | 2016-08-22 | Apparatus and method for formation interface measurement while drilling using azimuthal resistivity |
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| CN106089194A true CN106089194A (en) | 2016-11-09 |
| CN106089194B CN106089194B (en) | 2023-04-28 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108019207A (en) * | 2017-12-15 | 2018-05-11 | 北京六合伟业科技股份有限公司 | A kind of measuring method of SYMMETRIC ELECTROMAGNETIC ripple resistivity |
| CN108756864A (en) * | 2018-04-27 | 2018-11-06 | 中国石油天然气集团有限公司 | A kind of orientation electromagnetic resistivity imaging logging while drilling apparatus |
| CN112993522A (en) * | 2021-04-02 | 2021-06-18 | 中国科学院地质与地球物理研究所 | Laminated azimuth electromagnetic wave horizontal antenna device and manufacturing method thereof |
| CN115579621A (en) * | 2022-11-18 | 2023-01-06 | 中海油田服务股份有限公司 | Antenna structure and electromagnetic wave probe device |
| CN117231212A (en) * | 2023-11-16 | 2023-12-15 | 齐鲁工业大学(山东省科学院) | Novel azimuth electromagnetic wave logging instrument while drilling and magnetic field direction adjusting method |
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| CN205895228U (en) * | 2016-08-22 | 2017-01-18 | 上海神开石油设备有限公司 | Utilize device of position resistivity along with probing geodetic bed boundary |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108019207A (en) * | 2017-12-15 | 2018-05-11 | 北京六合伟业科技股份有限公司 | A kind of measuring method of SYMMETRIC ELECTROMAGNETIC ripple resistivity |
| CN108756864A (en) * | 2018-04-27 | 2018-11-06 | 中国石油天然气集团有限公司 | A kind of orientation electromagnetic resistivity imaging logging while drilling apparatus |
| CN108756864B (en) * | 2018-04-27 | 2021-08-27 | 中国石油天然气集团有限公司 | Azimuthal electromagnetic wave resistivity imaging logging-while-drilling instrument |
| CN112993522A (en) * | 2021-04-02 | 2021-06-18 | 中国科学院地质与地球物理研究所 | Laminated azimuth electromagnetic wave horizontal antenna device and manufacturing method thereof |
| CN112993522B (en) * | 2021-04-02 | 2023-09-15 | 中国科学院地质与地球物理研究所 | Laminated azimuth electromagnetic wave horizontal antenna device and manufacturing method thereof |
| CN115579621A (en) * | 2022-11-18 | 2023-01-06 | 中海油田服务股份有限公司 | Antenna structure and electromagnetic wave probe device |
| CN117231212A (en) * | 2023-11-16 | 2023-12-15 | 齐鲁工业大学(山东省科学院) | Novel azimuth electromagnetic wave logging instrument while drilling and magnetic field direction adjusting method |
| CN117231212B (en) * | 2023-11-16 | 2024-02-13 | 齐鲁工业大学(山东省科学院) | Direction-while-drilling electromagnetic wave logging instrument and magnetic field direction adjusting method |
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| CN106089194B (en) | 2023-04-28 |
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Effective date of registration: 20221111 Address after: 201114, Shanghai, Minhang District Pu Xing Road No. 1769 Applicant after: SHANGHAI SHENKAI PETROLEUM AND CHEMICAL EQUIPMENT CO.,LTD. Applicant after: SHANGHAI SHENKAI PETROLEUM EQUIPMENT Co.,Ltd. Applicant after: SHANGHAI SK PETROLEUM & CHEMICAL EQUIPMENT Corp.,Ltd. Applicant after: Shanghai Shenkai Petrochemical Equipment Co.,Ltd. Address before: 201114, Shanghai, Minhang District Pu Xing Road No. 1769 Applicant before: SHANGHAI SHENKAI PETROLEUM EQUIPMENT Co.,Ltd. Applicant before: Shanghai Shenkai Petrochemical Equipment Co.,Ltd. |
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