CN102966348A - Device and method for measurement while drilling of direction resistivity by using non-full circle antennas - Google Patents
Device and method for measurement while drilling of direction resistivity by using non-full circle antennas Download PDFInfo
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- CN102966348A CN102966348A CN2012103309713A CN201210330971A CN102966348A CN 102966348 A CN102966348 A CN 102966348A CN 2012103309713 A CN2012103309713 A CN 2012103309713A CN 201210330971 A CN201210330971 A CN 201210330971A CN 102966348 A CN102966348 A CN 102966348A
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Abstract
The invention relates to a device and a method for measurement while drilling of direction resistivity by using non-full circle antennas. The device for measurement of stratum direction resistivity comprises a resistivity meter body comprising a longitudinal axis and an outer surface, a first antenna provided with two open ends and disposed under the outer surface, a second antenna disposed under the outer surface and distant from the first antenna in axial direction, and at least one group of slots disposed in the outer surface. The corresponding method for measurement of the direction resistivity comprises the steps of rotating the resistivity meter in a drill hole, processing electromagnetic wave by employing the transmitting-receiving antenna group in the resistivity meter, and calculating a measurement valve related to the resistivity through the electromagnetic wave received through the receiving antenna.
Description
Technical field
The present invention relates generally to the resistivity well logging field.More particularly, the present invention relates to a kind of equipment and method of carrying out stratum direction resistivity measurement with the direction resistivity meter of non-full circle antenna that provide.
Background technology
As everyone knows, in Petroleum Industry, can gather down-hole information with electrical measuring method, such as well logging during (LWD), measurement while drilling (MWD) and wireline logging system.This technology has been used to obtain formation resistivity (or electrical conductivity), although " resistivity " and " electrical conductivity " is relative concept, they can be used alternatingly in the art usually.Various petrophysical models (for example A Erqi law) be can also use and corresponding definite formation rock and the physical attribute of fluid wherein come.As known in the art, resistivity is to define the important parameter of hydrocarbon and water content in the concrete dynamic modulus stratum.
Usually, people are vertical drilling wells, and hoistway is substantially perpendicular to the geological structure layer.Because the stratum around the boring is all basic identical in all directions, therefore need to be to not arranging for LWD or the MWD instrument of measuring electrical resistivity of earth layer around on the orientation.The resistivity that the rotation of LWD or MWD instrument can appreciable impact not be measured.For this reason, shown in Figure 1A, existing resistivity meter generally includes the receiving coil from one or more transmitting coils and the different axial spacings of maintenance, and the location positioning of receiving coil and transmitting coil, thus the axial magnetic ripple on the parallel direction of the transmitting/receiving resistivity meter longitudinal axis.Alternating current in the transmitting coil produces corresponding alternating electromagnetic field in the stratum.Because the relevant electromagnetic induction phenomenon of induction alternating electromagnetic field in the stratum produces induced voltage at receiving coil around the boring.As known in the art, the voltage of measurement can be used to estimate formation resistivity.
Yet, " horizontal drilling " gradually favored, described horizontal drilling refers to have at least certain angle between drilling well and the geological structure layer, because can improve like this protruded length of oil-producing formation (stratum with hydrocarbon) and overcome the difficulty of vertical drilling well.When carrying out horizontal drilling, preferably as much as possible boring is remained in the oil-producing formation, thereby reach Optimum recovery.The direction resistivity meter that therefore, need to have bearing sensitivity decides the steering operation of drilling subsequently boring.Can identify according to strata division, formation angles is surveyed and the measurement result such as fracture sign turns to decision.
The direction resistivity measurement generally includes emission and/or receives transverse mode (X mould or Y mould) or mixed mode (such as the mixed mode of X mould and Z mould) electromagnetic wave.Known multiple antenna configuration be used to carrying out this measurement, for example, horizontal antenna configuration as shown in Figure 1B (X mould), two plane antenna configurations, the saddle antenna configuration shown in Fig. 1 D (X mould and Z mould, mixed mode) and the tilting antenna shown in Fig. 1 E shown in Fig. 1 C.
All above-mentioned prior aries all have at least the direction of winding of part antenna to be not orthogonal to the direction resistivity meter longitudinal axis.The introducing of transverse mode antenna or mixed mode antenna has increased complexity and the cost of machine-building simultaneously.
The specific embodiments of present device and method has satisfied these demands and technology has been made improvement.
Summary of the invention
The object of the invention is to, overcome the direction of winding that existing prior art all has the part antenna at least and be not orthogonal to the defective that the direction resistivity meter longitudinal axis exists, and provide a kind of equipment and method of utilizing non-full circle antenna measurement while drilling direction resistivity, although technical problem to be solved is commercially to have adopted the direction resistivity meter, but still needs the coil configuration in the improvement direction resistivity meter.
Another purpose of invention is that a kind of equipment and method of utilizing non-full circle antenna measurement while drilling direction resistivity is provided, and technical problem to be solved is to require further improvement coil configuration, makes its manufacturing simply and is convenient to be assembled to the direction resistivity meter.
A further object of the present invention is, a kind of equipment and method of utilizing non-full circle antenna measurement while drilling direction resistivity is provided, and technical problem to be solved is to require further improvement coil configuration, makes it have good durability and reliability
An also purpose of the present invention is, a kind of equipment and method of utilizing non-full circle antenna measurement while drilling direction resistivity, and technical problem to be solved is to require further improvement coil configuration, makes it save cost.
The object of the invention to solve the technical problems realizes by the following technical solutions.
In one preferred embodiment, a kind of equipment of the direction resistivity measurement be used to carrying out the stratum can comprise: the resistivity meter main body with the longitudinal axis and external surface; The first antenna with two openends, it is deployed in external surface below and its direction of winding perpendicular to the resistivity meter main body longitudinal axis; The second antenna, its be deployed in external surface below and with the first antenna interval in the axial direction; And at least one component cloth slit on the outer surface.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
In some embodiments, the bearing of trend of slit is parallel to the resistivity meter main body longitudinal axis.
In some embodiments, the direction of winding of the second antenna is perpendicular to the resistivity meter main body longitudinal axis.
In some embodiments, the first antenna as be used for emitting electromagnetic wave transmitting antenna or be used for receiving electromagnetic reception antenna.
In some embodiments, during as transmitting antenna, the second antenna is as reception antenna at the first antenna.
In some embodiments, during as reception antenna, the second antenna is as transmitting antenna at the first antenna.
In some embodiments, the first antenna is the conducting line segment that direction of winding is disposed perpendicular to the resistivity meter main body longitudinal axis.
Also have in some embodiments, the first antenna is the non-full circle antenna that direction of winding is disposed perpendicular to the resistivity meter main body longitudinal axis.
In other embodiments, the second antenna is the conductor loop that direction of winding is disposed perpendicular to the resistivity meter main body longitudinal axis.
In other embodiments, slit is crossed in the path of the first antenna and the second antenna.
Also have in some other embodiments, may further include the penetration material that is filled in slit for the equipment that carries out stratum direction resistivity measurement.
In another embodiment, penetration material is magnetic material, is used for strengthening transmitting and receiving of the first antenna and the second antenna.
In another embodiment, magnetic material can the chosen from Fe ferrite, non-conductive magnetic alloy, iron powder and dilval.
Also have in another embodiment, may further include the protective materials of the slit that is filled in the resistivity meter main body for the equipment of the direction resistivity measurement of carrying out the stratum.
Also have in another embodiment, protective materials is to be made by epoxy resin.
The object of the invention to solve the technical problems also realizes by the following technical solutions.
In one preferred embodiment, a kind of direction resistivity meter with apparatus subject and longitudinal axis can comprise: have the conducting line segment of two openends, it places apparatus subject and configuration to be used for emission or receives electromagnetic wave; Conductor loop, it places apparatus subject and configuration to be used for receiving electromagnetic wave or guide line segment emitting electromagnetic wave from conducting line segment; At least one group of slit that is distributed in the apparatus subject external surface is used for settling conducting line segment and conductor loop; And direction of winding is perpendicular to the conducting line segment of the apparatus subject longitudinal axis.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
In some embodiments, the direction resistivity meter may further include the penetration material that is filled in the slit.
Also have in some embodiments, conducting line segment and conductor loop are as single-frequency or multifrequency antenna.
The object of the invention to solve the technical problems realizes in addition more by the following technical solutions.
In one preferred embodiment, a kind of method of the direction resistivity measurement for carrying out the stratum can comprise: rotate resistivity meter in boring, this resistivity meter comprise have two openends, direction of winding is perpendicular to the first antenna and second antenna of the resistivity meter longitudinal axis, the first antenna and the second antenna consist of and have the send-receive antenna sets of transmitting antenna and reception antenna; Utilize the send-receive antenna sets to process electromagnetic wave, comprising making the transmission antennas transmit electromagnetic wave, making the reception antenna reception from the electromagnetic wave of transmitting antenna; And come calculated resistance rate correlation measure according to the electromagnetic wave that receives on the reception antenna.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
In some embodiments, calculated resistance rate correlation measure can comprise the average of induced voltage on the interior reception antenna of a swing circle that extracts resistivity meter.
In some embodiments, calculated resistance rate correlation measure may further include the average of processing induced voltage, thereby derives near the resistivity on the stratum of boring.
In other embodiments, calculated resistance rate correlation measure can comprise peak valley amplitude and the corresponding rotation angle of induced voltage on the reception antenna in the swing circle that extracts resistivity meter.
In another embodiment, calculated resistance rate correlation measure may further include processes the peak valley amplitude, thereby derives distance and directional information from the resistivity meter to the strata interface.
The present invention compared with prior art has obvious advantage and beneficial effect.By technique scheme, the present invention not only can provide near the electric attribute on the stratum of boring, can also be provided to the interfacial direction of long-range resistivity and range information.And non-full circle antenna structure of the present invention does not need extra horizontal antenna, therefore, when the needs orientation measurement, only needs existing LWD and/or MWD instrument are carried out a little improvement.Correspondingly, can reduce the complexity of manufacturing and save manufacturing cost.
Description of drawings
Figure 1A represents to have the prior art of the existing resistivity meter of a pair of transmitting antenna and reception antenna.
Figure 1B, 1C, 1D and 1E represent the prior art for the antenna embodiment of travel direction resistivity measurement.
Fig. 2 represents to be assembled to the front elevation drawing of the direction resistivity meter 212 that has well logging during system 200 now.
Fig. 3 represents the phantom drawing of direction resistivity meter 212 as shown in Figure 2.
The sectional view of direction resistivity meter 212 A-A ' along the line in Fig. 4 A presentation graphs 3.
The sectional view of direction resistivity meter 212 B-B ' along the line in Fig. 4 B presentation graphs 3.
Fig. 4 C is illustrated in the sectional view of filling the direction resistivity meter 212 of penetration material 406 in the slit 306.
Fig. 5 A, 5C and 5E be illustrated in logarithmic scale 10log10 (| E||H|), be respectively the power level of the azimuth directions of 30 degree, 90 degree and 180 degree at distance 0.5 meter and angle of release.
Fig. 5 B, 5D and 5F be illustrated in logarithmic scale 10log10 (| E||H|), be respectively the power level of the azimuth directions of 30 degree, 90 degree and 180 degree at distance 5 meters and angle of release.
Fig. 6 represents the first model 600 for proof azimuth sensitivity degree of the present invention.
Fig. 7 A represents the as shown in Figure 6 analog result of model by the tables of data mode of the anglec of rotation of the induced voltage correspondence direction resistivity meter 212 of the second antenna 302 as shown in Figure 3.
Fig. 7 B represents the as shown in Figure 6 analog result of model by the tables of data mode of the anglec of rotation of the induced voltage correspondence direction resistivity meter 212 of third antenna 304 as shown in Figure 3.
Fig. 8 by as shown in Figure 3 the second antenna 302 and the tables of data mode of the distance of average induced voltage correspondence from direction resistivity meter 212 to resistivity interface 602 of third antenna 304 represent the as shown in Figure 6 analog result of model.
The tables of data mode of the resistivity on stratum represents the as shown in Figure 6 analog result of model around the induced voltage amplitude ratio correspondence direction resistivity meter 212 of 302 pairs of third antennas 304 of the second antenna of Fig. 9 A by as shown in Figure 3.
Fig. 9 B by as shown in Figure 3 the second antenna 302 and the phase difference correspondence direction resistivity meter 212 of 304 of third antennas around the tables of data mode of resistivity on stratum represent the as shown in Figure 6 analog result of model.
Figure 10 represents the second model 1000 for proof azimuth sensitivity degree of the present invention.
Figure 11 A represents the as shown in figure 10 analog result of model by the tables of data mode of the anglec of rotation of the induced voltage correspondence direction resistivity meter 212 of the second antenna 302 as shown in Figure 3.
Figure 11 B represents the as shown in figure 10 analog result of model by the tables of data mode of the anglec of rotation of the induced voltage correspondence direction resistivity meter 212 of third antenna 304 as shown in Figure 3.
Figure 12 represents the flow chart of the travel direction resistivity measurement 1200 according to the present invention.
The specific embodiment
With reference to the accompanying drawings embodiments of the invention are set forth.
Fig. 2 represents the described front elevation drawing that is assembled to the direction resistivity meter 212 of existing well logging during system 200 of some embodiments according to the present invention.Existing well logging during system 200 can comprise boring tower 202, drill string 206, drill bit 210 and direction resistivity meter 212.The drill string 206 that is supported by boring tower 202 can extend downward the boring 208 from ground 204.Drill string 206 can be with drill bit 210 and direction resistivity meter 212, thereby carries out the measurement of stratum geological property when drilling well.
In some embodiments, drill string 206 can be further bores motor, measuring transducer (such as nuclear logging instrument) and aspect sensor (such as accelerometer, gyroscope or magnetometer) with mud-pressure-pulse telemetry system, well, for increasing to the measurement on stratum on every side.And drill string 206 can be equipped be used to the crane gear of raising or reduce drill string 206.
Not only can be applied to well logging during (LWD) system according to direction resistivity meter 212 of the present invention, can also be applied to measurement while drilling (MWD) system and cable application.And direction resistivity meter 212 can be equally applicable to various drilling environment and the various offshore boring island such as land or marine, comprising fixed, floated and semisubmersible platform (but being not limited only to this).
Fig. 3 represents according to the present invention the as shown in Figure 2 phantom drawing of direction resistivity meter 212 of some embodiments.Direction resistivity meter 212 can comprise the first antenna 300, the second antenna 302, slit 306 and optional third antenna 304.The first antenna 300, the second antenna 302 and third antenna 304 can be deployed in the below of external surface 308, axially apart from one another by, and direction of winding is perpendicular to direction resistivity meter 212 longitudinal axis.Slit 306 can be distributed on the external surface 308 and it extends to being parallel to direction resistivity meter 212 longitudinal axis, and perpendicular to the direction of winding of the first antenna 300, the second antenna 302 and third antenna 304.
In some embodiments, slit 306 can be basically around the whole periphery of direction resistivity meter 212.Also have in some embodiments, slit 306 can be formed on the external surface 308 with any direction.In another embodiment, the second antenna 302 and third antenna 304 can be deployed to any direction and shape the below of external surface 308.The present invention is not limited to any specific geometry and quantity with this slit and antenna.
The sectional view of direction resistivity meter 212 A-A ' along the line in Fig. 4 A presentation graphs 3; The sectional view of direction resistivity meter 212 B-B ' along the line in Fig. 4 B presentation graphs 3.Fig. 4 A clearly expresses and can with current-carrying coil of the second antenna 302 coileds, consist of the full circle conductor loop.Therefore, the second antenna 302 can be used as conventional loop aerial, and as magnetic source, this loop aerial becomes axial symmetry and do not possess the azimuth sensitivity degree with respect to the longitudinal axis of direction resistivity meter 212.With respect to Fig. 4 A, the first antenna 300 shown in Fig. 4 B is configured to have the current carrying conductor section of first end 400 and the second end 402, consists of non-full circle antenna.Therefore, it can be considered as conductive antenna.Slit 306 among Fig. 4 A and the 4B can be crossed by the path of the second antenna 302 and the first antenna 300.The purpose of slit 306 be can guarantee slit 306 around do not have the galvanic circle, make antenna can launch or receive electromagnetic field.
In some embodiments, shown in Fig. 4 B and 4C, penetration material 404 can be filled in the slit 306.Penetration material 404 can be magnetic material, is used for strengthening transmitting and receiving of antenna.Magnetic material can be Ferrite Material, non-conductive magnetic alloy, iron powder and dilval (but being not limited only to this).
In some embodiments, shown in Fig. 4 C, the slit 306 of direction resistivity meter 212 can be filled with protective materials 406.Protective materials 406 can be used for protecting the infringement that causes when the electronic instrument that is formed on direction resistivity meter 212 is avoided drilling well.Protective materials 406 can be epoxy resin (but being not limited only to this).Can change the amount of protective materials 406 and penetration material 404.Therefore, the interface of 404 of protective materials 406 and penetration materials can be higher or lower than the path of the first antenna 300.
In Fig. 3 and Fig. 4, during 212 rotations of direction resistivity meter, the first antenna 300 is as the transmitting antenna of emitting electromagnetic wave, and the second antenna 302 and third antenna 304 are as receiving electromagnetic reception antenna from transmitting antenna.This configuration can provide the resistivity compensated measurement.Yet according to principle of reciprocity, as long as be equipped with suitable emission or receive electronic equipment, each antenna may be as transmitting antenna, reception antenna or simultaneously as transmitting antenna and reception antenna.Therefore, the first antenna 300 also can be used as reception antenna, and the second antenna 302 and third antenna 304 also can be used as transmitting antenna.Yet the present invention does not still limit any specific transmitter or receiver spacing, and also not limiting the using compensation method also is that non-penalty method is measured.
In force, the first antenna 300 that has a non-full circle shape can be broken with respect to the axial symmetry form of direction resistivity meter 212 longitudinal axis and can have the azimuth sensitivity degree thus.During drilling well, as transmitting antenna, the polarization meeting of the first antenna 300 is along with the rotation generation spatial variations of direction resistivity meter 212.When direction resistivity meter 212 during near the resistivity interface, rotation along with direction resistivity meter 212, the polarization of the generation spatial variations of the first antenna 300 can cause induced voltage generation sinusoidal variations, is mapped to the second antenna 302 and/or third antenna 304 as reception antenna.The sinusoidal variations of induced voltage can cover the interfacial direction of resistivity and range information and the resistivity information on stratum on every side.
The azimuth sensitivity degree of non-full circle antenna can be described by its radiation diagram.For example, non-full circle current-carrying antenna is in the uniform dielectric that resistivity is 100 ohm meters, and can check apart from non-full circle center of antenna different distance and have the power level of the azimuth direction of different angle of releases.Fig. 5 A, 5C and 5E be illustrated in logarithmic scale 10log10 (| E||H|), be respectively the power level of the azimuth directions of 30 degree, 90 degree and 180 degree at distance 0.5 meter and angle of release; Fig. 5 B, 5D and 5F be illustrated in logarithmic scale 10log10 (| E||H|), be respectively at distance 5 meters and angle of release 30 degree, 90 degree and 180 degree azimuth directions power level (for example, the angle of release 408 of the first antenna 300 shown in Fig. 4 B is 90 degree, but the present invention can not be limited to any specific angle).
Fig. 5 A clearly expresses the directionality of non-full circle antenna.Non-full circle antenna surface to direction (corresponding to 0 among Fig. 5 A degree) power level approximately than with the large 15dB of power level of non-full circle antenna rightabout (spending corresponding to 180 among Fig. 5 A).Comparison diagram 5A and 5B can find out, away from the center of non-full circle antenna when (as at a distance of 5 meters), the azimuth sensitivity degree of non-full circle antenna becomes more weak at measuring point.Comparison diagram 5C and 5D and Fig. 5 E and 5F also can find out the trend that is similar to shown in Fig. 5 A and 5B.In addition, comparison diagram 5A, 5C and 5E can find out that the azimuth sensitivity degree reduces along with the increase of non-full circle antenna angle of release.Yet power level increases along with the increase of angle of release.
Fig. 6 represents the exemplary model for proof azimuth sensitivity degree of the present invention; Fig. 7,8 and 9 is provided by the analog result of the model that provides among Fig. 6.In Fig. 6, the first model 600 can comprise three-dimensional cube, and this three-dimensional cube is divided into two parts by horizontal resistivity interface 602.The resistivity on top 604 can be 100 ohm meters, and the resistivity of bottom 606 can be 1 ohm meter.In order to simulate, the direction resistivity meter 212 shown in Fig. 3 can place top 604 and near resistivity interface 602.
Fig. 7 A by direction resistivity meter 212 under the different vertical of resistivity interface 602 distance as shown in Figure 3 the mode of the tables of data of the anglec of rotation of the induced voltage correspondence direction resistivity meter 212 of the second antenna 302 represent the as shown in Figure 6 analog result of the first model; Some embodiments according to the present invention, Fig. 7 B by direction resistivity meter 212 under the different vertical of resistivity interface 602 distance as shown in Figure 3 the tables of data mode of the anglec of rotation of the induced voltage correspondence direction resistivity meter 212 of third antenna 304 represent the as shown in Figure 6 analog result of the first model.According to Fig. 7 A and 7B, sinusoidal variations all can occur along with the rotation of direction resistivity meter 212 as the second antenna 302 of reception antenna and the induced voltage on the third antenna 304 in the two.The peak valley amplitude of sinusoidal variations curve can arrive with direction resistivity meter 212 Range-based of resistivity interface 602.Direction resistivity meter 212 is nearer apart from resistivity interface 602, and the peak valley amplitude of sinusoidal voltage curve is larger.Direction resistivity meter 212 does not almost have difference away from result and the result of direction resistivity meter 212 when to place resistivity be the uniform dielectric of 100 ohm meters of resistivity interface 602 when (as at a distance of 5 meters).The induced voltage that sinusoidal variations occurs at reception antenna can be relevant with the anglec of rotation of direction resistivity meter 212, thus, can be used for obtaining the azimuth information of stratum electric attribute with the direction resistivity meter 212 of non-full circle antenna, comprising to the interfacial distance of resistivity and direction (being not limited in this).
Some embodiments according to the present invention, Fig. 8 by as shown in Figure 3 the second antenna 302 and the tables of data mode of the distance of average induced voltage correspondence from direction resistivity meter 212 to resistivity interface 602 of third antenna 304 represent the as shown in Figure 6 analog result of model.According to Fig. 8, direction resistivity meter 212 is nearer apart from conductive area 606, and the average induced voltage on the reception antenna is less.
The tables of data mode of the resistivity on stratum represents the as shown in Figure 6 analog result of model around the induced voltage amplitude ratio correspondence direction resistivity meter 212 of 302 pairs of third antennas 304 of the second antenna of Fig. 9 A by as shown in Figure 3; Fig. 9 B by as shown in Figure 3 the second antenna 302 and the phase difference correspondence direction resistivity meter 212 of 304 of third antennas around the tables of data mode of resistivity on stratum represent the as shown in Figure 6 analog result of model.The above results is expressed the resistivity information that also can be used for obtaining near the stratum of boring with the direction resistivity meter 212 of non-full circle antenna.
In some embodiments, the user can also calculate the induced voltage amplitude ratio of 300 pairs of the second antennas 302 of the first antenna (or third antenna 304) and the phase difference of the induced voltage between the first antenna 300 and the second antenna 302 (or third antenna 304), thereby obtains near the resistivity information on the stratum of boring.
Figure 10 represents the exemplary model that another is used to prove azimuth sensitivity degree of the present invention; The analog result of the model that provides among Figure 10 is provided for Figure 11 A and 11B.In Figure 10, the second model 1000 can comprise three-dimensional cube, and this three-dimensional cube is divided into two parts by horizontal resistivity interface 1002.The resistivity on top 1004 can be 1 ohm meter, and the resistivity of bottom 1006 can be 100 ohm meters.In order to simulate, the direction resistivity meter 212 shown in Fig. 3 can place bottom 1006 and near resistivity interface 1002.
Figure 11 A by direction resistivity meter 212 under the different vertical of resistivity interface 1002 distance as shown in Figure 3 the mode of the tables of data of the anglec of rotation of the induced voltage correspondence direction resistivity meter 212 of the second antenna 302 represent the as shown in figure 10 analog result of the first model; Some embodiments according to the present invention, Figure 11 B by direction resistivity meter 212 under the different vertical of resistivity interface 1002 distance as shown in Figure 3 the tables of data mode of the anglec of rotation of the induced voltage correspondence direction resistivity meter 212 of third antenna 304 represent the as shown in figure 10 analog result of the first model.Consistent with the result shown in Fig. 7 A and the 7B, Figure 11 A and 11B express the two all can sinusoidal variations occur along with the rotation of direction resistivity meter 212 as the second antenna 302 of reception antenna and the induced voltage on the third antenna 304.The peak valley amplitude of sinusoidal variations curve can arrive with direction resistivity meter 212 Range-based of resistivity interface 1002.Direction resistivity meter 212 is nearer apart from resistivity interface 1002, and the peak valley amplitude of sinusoidal voltage curve is larger.Direction resistivity meter 212 does not almost have difference away from result and the result of direction resistivity meter 212 when to place resistivity be the uniform dielectric of 100 ohm meters of resistivity interface 1002 when (as at a distance of 5 meters).
A kind of corresponding method of the direction resistivity measurement for carrying out the stratum comprises: rotate resistivity meter in boring, this resistivity meter comprise have two openends, direction of winding is perpendicular to the first antenna of the resistivity meter longitudinal axis and the second antenna with coil shape, the first antenna and the second antenna consist of and have the send-receive antenna sets of transmitting antenna and reception antenna; Utilize the send-receive antenna sets to process electromagnetic wave, comprising making the transmission antennas transmit electromagnetic wave, making the reception antenna reception from the electromagnetic wave of transmitting antenna; And come calculated resistance rate correlation measure according to the electromagnetic wave that receives at reception antenna.
In some embodiments, calculated resistance rate correlation measure can comprise the average of induced voltage on the interior reception antenna of a swing circle that extracts resistivity meter.
In some embodiments, calculated resistance rate correlation measure may further include the average of processing induced voltage, thereby derives near the resistivity on the stratum of boring.
In some embodiments, calculated resistance rate correlation measure can comprise peak valley amplitude and the corresponding anglec of rotation of induced voltage on the interior reception antenna of a swing circle that extracts resistivity meter.
In some embodiments, calculated resistance rate correlation measure may further include processes the peak valley amplitude, thereby derives distance and directional information from the resistivity meter to the strata interface.
Figure 12 represents the example flow chart of the described travel direction resistivity measurement 1200 of some embodiments according to the present invention.Step comprises: rotation resistivity meter 1202 in boring; From transmission antennas transmit electromagnetic wave 1204; Receive the electromagnetic wave 1206 on the reception antenna; The average 1208 of induced voltage on the reception antenna in the swing circle of extraction resistivity meter; Near the resistivity 1210 on the stratum derivation boring; Peak valley amplitude and the corresponding anglec of rotation 1212 of induced voltage on the interior reception antenna of a swing circle of extraction resistivity meter; And the derive interfacial distance of long-range resistivity and directional information 1214.But the present invention is not limited to step any particular order or requires any specific step as shown in figure 12.
The present invention is described according to specific embodiments and in conjunction with details, is convenient to understand the principle of structure of the present invention and operation.The specific embodiments of herein mentioning and details are not to be intended to limit the scope of claim of the present invention.The spirit and scope that do not break away from claim of the present invention, the embodiment that can select being used for explanation is made other various modifications, and this is apparent to those skilled in the art.
Claims (23)
1. one kind is used for the equipment carry out stratum direction resistivity measurement, it is characterized in that comprising:
The resistivity meter main body has the longitudinal axis and external surface;
The first antenna has two openends, is deployed in described external surface below, and its direction of winding is perpendicular to the longitudinal axis of described resistivity meter main body;
The second antenna, be deployed in described external surface below and with described the first antenna interval in the axial direction; And
At least one group of slit is distributed on the described external surface.
2. equipment according to claim 1 is characterized in that the bearing of trend of described slit is arranged essentially parallel to the longitudinal axis of described resistivity meter main body.
3. equipment according to claim 1 is characterized in that the direction of winding of described the second antenna is perpendicular to the longitudinal axis of described resistivity meter main body.
4. equipment according to claim 1, it is characterized in that described the first antenna as be used for emitting electromagnetic wave transmitting antenna or be used for receiving electromagnetic reception antenna.
5. equipment according to claim 4, when it is characterized in that described the first antenna as transmitting antenna, described the second antenna is as reception antenna.
6. equipment according to claim 4, when it is characterized in that described the first antenna as reception antenna, described the second antenna is as transmitting antenna.
7. equipment according to claim 1 is characterized in that described the first antenna is the conducting line segment that direction of winding is disposed perpendicular to the described resistivity meter main body longitudinal axis.
8. equipment according to claim 1 is characterized in that described the first antenna is the non-full circle antenna that direction of winding is disposed perpendicular to the described resistivity meter main body longitudinal axis.
9. equipment according to claim 1 is characterized in that described the second antenna is the conductor loop that direction of winding is disposed perpendicular to the described resistivity meter main body longitudinal axis.
10. equipment according to claim 1 is characterized in that described slit is crossed in the path of described the first antenna and described the second antenna.
11. equipment according to claim 1 is characterized in that further comprising the penetration material that is filled in the described slit.
12. equipment according to claim 11 is characterized in that described penetration material is magnetic material, is used for strengthening transmitting and receiving of described the first antenna and described the second antenna.
13. equipment according to claim 12 is characterized in that described magnetic material chosen from Fe ferrite, non-conductive magnetic alloy, iron powder and dilval.
14. equipment according to claim 1 is characterized in that further comprising the protective materials in the slit that is filled in described resistivity meter main body.
15. equipment according to claim 14 is characterized in that described protective materials is to be made by epoxy resin.
16. the direction resistivity meter with apparatus subject and longitudinal axis is characterized in that comprising:
Conducting line segment has two openends, places described apparatus subject and configuration to be used for emission or reception electromagnetic wave;
Conductor loop places described apparatus subject and configuration to be used for from described conducting line segment reception electromagnetic wave or to described conducting line segment emitting electromagnetic wave;
At least one group of slit is distributed in the external surface of described apparatus subject, is used for settling described conducting line segment and described conductor loop;
Wherein, the direction of winding of described conducting line segment is perpendicular to the longitudinal axis of described apparatus subject.
17. direction resistivity meter according to claim 16 is characterized in that further comprising the penetration material that is filled in the described slit.
18. direction resistivity meter according to claim 16 is characterized in that described conducting line segment and described conductor loop are as single-frequency or multifrequency antenna.
19. the method for the direction resistivity measurement of carrying out the stratum is characterized in that comprising:
In boring, rotate resistivity meter, this resistivity meter comprise have two openends, direction of winding is perpendicular to the first antenna and second antenna of the described resistivity meter longitudinal axis, the first antenna and the second antenna consist of and have the send-receive antenna sets of transmitting antenna and reception antenna;
Utilize the send-receive antenna sets to process electromagnetic wave, comprising making the transmission antennas transmit electromagnetic wave, making the reception antenna reception from the electromagnetic wave of transmitting antenna; And
Come calculated resistance rate correlation measure according to the electromagnetic wave that receives at reception antenna.
20. method according to claim 19 is characterized in that described calculated resistance rate correlation measure comprises the average of induced voltage on the interior described reception antenna of a swing circle that extracts described resistivity meter.
21. method according to claim 20 is characterized in that described calculated resistance rate correlation measure further comprises the average of processing described induced voltage, thereby derives near the resistivity on the stratum of boring.
22. method according to claim 19 is characterized in that described calculated resistance rate correlation measure comprises peak valley amplitude and the corresponding anglec of rotation of induced voltage on the interior described reception antenna of a swing circle that extracts described resistivity meter.
23. method according to claim 22 is characterized in that calculated resistance rate correlation measure further comprises the described peak valley amplitude of processing, thereby derives distance and directional information from described resistivity meter to interface.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201161528800P | 2011-08-30 | 2011-08-30 | |
| US61/528,800 | 2011-08-30 | ||
| US13/462,736 | 2012-05-02 | ||
| US13/462,736 US20130113490A1 (en) | 2011-08-30 | 2012-05-02 | Apparatus and method for directional resistivity measurement while drilling using incomplete circular antenna |
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| Publication Number | Publication Date |
|---|---|
| CN102966348A true CN102966348A (en) | 2013-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012103309713A Pending CN102966348A (en) | 2011-08-30 | 2012-08-30 | Device and method for measurement while drilling of direction resistivity by using non-full circle antennas |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103367866A (en) * | 2013-08-06 | 2013-10-23 | 中国石油集团长城钻探工程有限公司钻井技术服务公司 | Magnetic dipole antenna and device for measuring orientated electrical resistivity of stratum |
| CN103670379A (en) * | 2013-12-18 | 2014-03-26 | 贝兹维仪器(苏州)有限公司 | Boundary measurement device and method while drilling by utilizing high-frequency magnetometer |
| CN103726840A (en) * | 2013-03-05 | 2014-04-16 | 贝兹维仪器(苏州)有限公司 | Method and device used for measuring formation directed resistivity |
| CN104727812A (en) * | 2013-12-24 | 2015-06-24 | 中国石油化工集团公司 | Measuring set and method of while-drilling azimuthal electromagnetic valve resistivity |
| CN105715255A (en) * | 2016-01-26 | 2016-06-29 | 中国石油集团长城钻探工程有限公司 | Device for detecting formation boundary and measuring formation resistivity |
| CN106089194A (en) * | 2016-08-22 | 2016-11-09 | 上海神开石油设备有限公司 | Utilize azimuthal resistivity with the apparatus and method of probing geodetic bed boundary |
| CN107871922A (en) * | 2016-09-27 | 2018-04-03 | 中国石油化工股份有限公司 | Direction transmitting antenna and the measurement apparatus with brill formation resistivity |
| CN109952519A (en) * | 2016-10-31 | 2019-06-28 | 韩尉善 | By E antenna applications in resistivity well logging tool |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5530358A (en) * | 1994-01-25 | 1996-06-25 | Baker Hughes, Incorporated | Method and apparatus for measurement-while-drilling utilizing improved antennas |
| CN1434926A (en) * | 1999-07-09 | 2003-08-06 | 霍尼韦尔国际公司 | Propagating wave earth formation resistivity measuring arrangement |
| CN1682129A (en) * | 2002-07-16 | 2005-10-12 | 通用电气公司 | Well logging tool and method for determining resistivity |
| US7057392B2 (en) * | 2002-09-06 | 2006-06-06 | Baker Hughes Incorporated | Method and apparatus for directional resistivity measurement while drilling |
| CN101467070A (en) * | 2006-06-19 | 2009-06-24 | 哈里伯顿能源服务公司 | Antenna cutout in a downhole tubular |
| CN101571040A (en) * | 2008-04-16 | 2009-11-04 | 普拉德研究及开发股份有限公司 | An electromagnetic logging apparatus and method |
| CN201387489Y (en) * | 2009-04-08 | 2010-01-20 | 中国石油集团钻井工程技术研究院 | Antenna system conducting resistivity log according to electromagnetic waves |
| CN101876245A (en) * | 2010-07-16 | 2010-11-03 | 大庆石油管理局 | Shell of electromagnetic wave resistivity instrument |
-
2012
- 2012-08-30 CN CN2012103309713A patent/CN102966348A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5530358A (en) * | 1994-01-25 | 1996-06-25 | Baker Hughes, Incorporated | Method and apparatus for measurement-while-drilling utilizing improved antennas |
| CN1434926A (en) * | 1999-07-09 | 2003-08-06 | 霍尼韦尔国际公司 | Propagating wave earth formation resistivity measuring arrangement |
| CN1682129A (en) * | 2002-07-16 | 2005-10-12 | 通用电气公司 | Well logging tool and method for determining resistivity |
| US7057392B2 (en) * | 2002-09-06 | 2006-06-06 | Baker Hughes Incorporated | Method and apparatus for directional resistivity measurement while drilling |
| CN101467070A (en) * | 2006-06-19 | 2009-06-24 | 哈里伯顿能源服务公司 | Antenna cutout in a downhole tubular |
| CN101571040A (en) * | 2008-04-16 | 2009-11-04 | 普拉德研究及开发股份有限公司 | An electromagnetic logging apparatus and method |
| CN201387489Y (en) * | 2009-04-08 | 2010-01-20 | 中国石油集团钻井工程技术研究院 | Antenna system conducting resistivity log according to electromagnetic waves |
| CN101876245A (en) * | 2010-07-16 | 2010-11-03 | 大庆石油管理局 | Shell of electromagnetic wave resistivity instrument |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103726840A (en) * | 2013-03-05 | 2014-04-16 | 贝兹维仪器(苏州)有限公司 | Method and device used for measuring formation directed resistivity |
| CN103367866A (en) * | 2013-08-06 | 2013-10-23 | 中国石油集团长城钻探工程有限公司钻井技术服务公司 | Magnetic dipole antenna and device for measuring orientated electrical resistivity of stratum |
| CN103367866B (en) * | 2013-08-06 | 2016-04-27 | 中国石油集团长城钻探工程有限公司 | Magnetic-dipole antenna and the device for the directed resistivity measurement in stratum |
| CN103670379A (en) * | 2013-12-18 | 2014-03-26 | 贝兹维仪器(苏州)有限公司 | Boundary measurement device and method while drilling by utilizing high-frequency magnetometer |
| CN104727812A (en) * | 2013-12-24 | 2015-06-24 | 中国石油化工集团公司 | Measuring set and method of while-drilling azimuthal electromagnetic valve resistivity |
| CN104727812B (en) * | 2013-12-24 | 2018-04-10 | 中国石油化工集团公司 | With brill orientation electromagnetic wave resistivity survey apparatus and its measuring method |
| CN105715255A (en) * | 2016-01-26 | 2016-06-29 | 中国石油集团长城钻探工程有限公司 | Device for detecting formation boundary and measuring formation resistivity |
| CN106089194A (en) * | 2016-08-22 | 2016-11-09 | 上海神开石油设备有限公司 | Utilize azimuthal resistivity with the apparatus and method of probing geodetic bed boundary |
| CN107871922A (en) * | 2016-09-27 | 2018-04-03 | 中国石油化工股份有限公司 | Direction transmitting antenna and the measurement apparatus with brill formation resistivity |
| CN107871922B (en) * | 2016-09-27 | 2020-06-02 | 中国石油化工股份有限公司 | Directional transmitting antenna and measurement device for formation resistivity while drilling |
| CN109952519A (en) * | 2016-10-31 | 2019-06-28 | 韩尉善 | By E antenna applications in resistivity well logging tool |
| CN109952519B (en) * | 2016-10-31 | 2021-08-17 | 韩尉善 | Application of E-field antenna to resistivity logging tool |
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Application publication date: 20130313 |