CN104265285B - A kind of device of measurement oil-base mud resistivity - Google Patents
A kind of device of measurement oil-base mud resistivity Download PDFInfo
- Publication number
- CN104265285B CN104265285B CN201410490193.3A CN201410490193A CN104265285B CN 104265285 B CN104265285 B CN 104265285B CN 201410490193 A CN201410490193 A CN 201410490193A CN 104265285 B CN104265285 B CN 104265285B
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- China
- Prior art keywords
- probe
- outer shroud
- internal ring
- insulating supporting
- supporting set
- Prior art date
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B49/08—Obtaining fluid samples or testing fluids, in boreholes or wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B49/08—Obtaining fluid samples or testing fluids, in boreholes or wells
- E21B49/087—Well testing, e.g. testing for reservoir productivity or formation parameters
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B49/08—Obtaining fluid samples or testing fluids, in boreholes or wells
- E21B49/087—Well testing, e.g. testing for reservoir productivity or formation parameters
- E21B49/0875—Well testing, e.g. testing for reservoir productivity or formation parameters determining specific fluid parameters
Abstract
The invention discloses a kind of device of measurement oil-base mud resistivity, at least include：Upper binding head assembly (1), lower union joint assembly (8), also include：Probing shell (2), it is opened in the mud entrance (3) on probing shell (2) and slurry outlet (7), for probe outer shroud (5) is positioned and is ensured with probe outer shroud insulating supporting set (4) that described probe outer shroud (5) is insulated with probing shell (2), it is arranged on the probe outer shroud (5) in probe outer shroud insulating supporting set (4), it is located at the slurry channel (6) between probe internal ring (10) and probe outer shroud (5), for probe internal ring (10) is positioned and is ensured with probe internal ring insulating supporting set (9) that probe internal ring (10) and described metal pressure-bearing shell (11) are insulated, it is arranged on probe internal ring insulating supporting set (9) probe internal ring (10) outward, metal pressure-bearing shell (11), for depositing the electronic circuit sealed compartment (12) of measuring circuit.Present invention achieves the measurement to oil-base mud resistivity.
Description
Technical field
The present invention relates to formation resistivity scanning imagery logging technique, espespecially a kind of dress of measurement oil-base mud resistivity
Put.
Background technology
The well logging of formation resistivity scanning imagery is a kind of important borehole wall imaging method, and it utilizes the multiple rows of knob on multi-electrode
The small electrode of buckle-like to borehole wall stratum emission current, due to the difference of the rock composition, structure and contained fluid of electrode contact, by
This causes the change of electric current, and the change of electric current reflects the change of borehole wall rock resistivity everywhere, can show resistivity accordingly
The borehole wall is imaged.In wellhole, oil-base mud resistivity has a significant impact to borehole wall imaging measurement signal, in order to eliminate this impact, needs
Measure oil-base mud resistivity in down-hole in real time.
At home and abroad there is no the open device measuring oil-base mud resistivity of correlation technique at present.
Content of the invention
In order to solve the above problems, the present invention proposes a kind of oil-base mud resistivity test device, can measure high temperature
The resistivity of oil-base mud in high pressure wellhole.
In order to achieve the above object, the present invention proposes a kind of device of measurement oil-base mud resistivity, at least includes：On
Union joint assembly 1 and lower union joint assembly 8 are it is characterised in that also include：
Probing shell 2, is opened in the mud entrance 3 on probing shell 2 and slurry outlet 7, for carrying out to probe outer shroud 5
Position and ensure the probe outer shroud insulating supporting set 4 of described probe outer shroud 5 and probing shell 2 insulation, be arranged on probe outer shroud exhausted
Probe outer shroud 5 in edge support set 4, for being positioned to probe internal ring 10 and being ensured pop one's head in internal ring 10 and metal pressure-bearing shell
The probe internal ring insulating supporting set 9 of 11 insulation, the slurry channel 6 between probe internal ring 10 and probe outer shroud 5, it is arranged on spy
Probe internal ring 10 outside head internal ring insulating supporting set 9, metal pressure-bearing shell 11, the electronic circuit for depositing measuring circuit seals
Cabin 12；
Probe outer shroud insulating supporting set 4 is arranged in probing shell 2；Probe internal ring insulating supporting set 9 is arranged on metal and holds
Outside pressure shell body 11；Electronic circuit sealed compartment 12 is located in metal pressure-bearing shell 11；
Mud entrance 3 is located at the top of slurry channel 6, and slurry outlet 7 is located at the lower section of slurry channel 6；
One end of probing shell 2 is connected with upper binding head assembly 1, the other end of probing shell 2 and lower union joint assembly 8 phase
Even；
One end of metal pressure-bearing shell 11 is connected with upper binding head assembly 1, the other end of metal pressure-bearing shell 11 and lower company
Connector assembly 8 is connected；
Probing shell 2 is coaxial with metal pressure-bearing shell 11, and probe outer shroud 5 is coaxial with probe internal ring 10.
Preferably, one end of described probing shell 2 is connected with described upper binding head assembly 1 by screw thread, and described probe is outer
The other end of housing assy 2 is connected with described lower union joint 8 by Rapid-turning nut.
Preferably, described probe internal ring insulating supporting set 9 and described probe outer shroud insulating supporting set 4 are ladder hollow
Axle, described probe internal ring 10 is arranged in the less outside cylinder of step diameter of described probe internal ring insulating supporting set 9, described spy
Head outer shroud 5 is arranged in the less outside cylinder of step diameter of described probe outer shroud insulating supporting set 4.
Preferably, described probe internal ring 10 and described probe outer shroud 5 are the corrosion of electric conductivity excellent and resistance to down-hole slurry
Metal material.
Compared with prior art, the present invention includes：Upper binding head assembly 1, probing shell 2, it is opened on probing shell 2
Mud entrance 3 and slurry outlet 7, for being positioned to probe outer shroud 5 and being ensured that described probe outer shroud 5 is exhausted with probing shell 2
The probe outer shroud insulating supporting set 4 of edge, is arranged on the probe outer shroud 5 in probe outer shroud insulating supporting set 4, positioned at probe internal ring 10
Slurry channel 6 and probe outer shroud 5 between, lower union joint assembly 8, for being positioned to probe internal ring 10 and being ensured in probe
Ring 10 and the probe internal ring insulating supporting set 9 of described metal pressure-bearing shell 11 insulation, are arranged on outside probe internal ring insulating supporting set 9
Probe internal ring 10, metal pressure-bearing shell 11, for depositing the electronic circuit sealed compartment 12 of measuring circuit；Probe outer shroud insulation
Support set 4 is arranged in probing shell 2；Probe internal ring insulating supporting set 9 is arranged on outside metal pressure-bearing shell 11；Electronic circuit seals
Cabin 12 is located in metal pressure-bearing shell 11；Mud entrance 3 is located at the top of slurry channel 6, and slurry outlet 7 is located at slurry channel 6
Lower section；One end of probing shell 2 is connected with upper binding head assembly 1, the other end of probing shell 2 and lower union joint assembly 8 phase
Even；One end of metal pressure-bearing shell 11 is connected with upper binding head assembly 1, and the other end of metal pressure-bearing shell 11 is total with lower union joint
8 are become to be connected；Probing shell 2 is coaxial with metal pressure-bearing shell 11, and probe outer shroud 5 is coaxial with probe internal ring 10.By the present invention's
Scheme, when device above carries in wellhole, the oil-base mud in wellhole enters from mud entrance 3, through slurry channel 6, finally from
Slurry outlet 7 flows out, and applies the signal source of certain frequency, by detection probe between probe internal ring 10 and probe outer shroud 5
Ring 10 and the output signal of probe outer shroud 5, the impedance between measuring probe internal ring 10 and probe outer shroud 5, thus be calculated oil
The resistivity of base mud and impedance angle.
Brief description
Below the accompanying drawing in the embodiment of the present invention is illustrated, the accompanying drawing in embodiment is for entering one to the present invention
Step understands, is used for explaining the present invention, does not constitute limiting the scope of the invention together with description.
Fig. 1 is the structure composition schematic diagram of the device of measurement oil-base mud resistivity of the present invention.
In figure, 1 is upper binding head assembly, and 2 is probing shell, and 3 is mud entrance, and 4 is probe outer shroud insulating supporting set, 5
For outer shroud of popping one's head in, 6 is slurry channel, and 7 is slurry outlet, and 8 is lower union joint assembly, and 9 is probe internal ring insulating supporting set, and 10 are
Probe internal ring, 11 is metal pressure-bearing shell, and 12 is electronic circuit sealed compartment.
Specific embodiment
For the ease of the understanding of those skilled in the art, the invention will be further described below in conjunction with the accompanying drawings, not
Can be used for limiting the scope of the invention.
Referring to Fig. 1, the present invention proposes a kind of device of measurement oil-base mud resistivity, at least includes：Upper binding head is total
One-tenth 1, lower union joint assembly 8, also include：
Probing shell 2, is opened in the mud entrance 3 on probing shell 2 and slurry outlet 7, for carrying out to probe outer shroud 5
Position and ensure the probe outer shroud insulating supporting set 4 of described probe outer shroud 5 and probing shell 2 insulation, be arranged on probe outer shroud exhausted
Probe outer shroud 5 in edge support set 4, the slurry channel 6 between probe internal ring 10 and probe outer shroud 5, in probe
Ring 10 is positioned and is ensured the probe internal ring insulating supporting set 9 of internal ring 10 and described metal pressure-bearing shell 11 insulation of popping one's head in, peace
It is contained in the probe internal ring 10 outside probe internal ring insulating supporting set 9, metal pressure-bearing shell 11, for depositing the electric wire of measuring circuit
Road sealed compartment 12；
Probe outer shroud insulating supporting set 4 is arranged in probing shell 2；Probe internal ring insulating supporting set 9 is arranged on metal and holds
Outside pressure shell body 11；Electronic circuit sealed compartment 12 is located in metal pressure-bearing shell 11；
Mud entrance 3 is located at the top of slurry channel 6, and slurry outlet 7 is located at the lower section of slurry channel 6；
One end of probing shell 2 is connected with upper binding head assembly 1, the other end of probing shell 2 and lower union joint assembly 8 phase
Even；
One end of metal pressure-bearing shell 11 is connected with upper binding head assembly 1, the other end of metal pressure-bearing shell 11 and lower company
Connector assembly 8 is connected；
Probing shell 2 is coaxial with metal pressure-bearing shell 11, and probe outer shroud 5 is coaxial with probe internal ring 10.
Wherein, upper binding head assembly 1 is used to be connected with other instruments with lower union joint assembly 8.
Wherein, one end of probing shell 2 is connected with upper binding head assembly 1 by screw thread, and the other end of probing shell 2 passes through
Rapid-turning nut is connected with lower union joint assembly 8.
Wherein, probe internal ring insulating supporting set 9 and probe outer shroud insulating supporting set 4 are ladder air-cored axis, internal ring of popping one's head in
In the 10 less outside cylinder of step diameter being arranged on probe internal ring insulating supporting set 9, it is exhausted that probe outer shroud 5 is arranged on probe outer shroud
In the less outside cylinder of step diameter of edge support set 4.
Wherein, probe internal ring insulating supporting set 9 and probe outer shroud insulating supporting cover the 4 ladder air-cored axis being two ranks, its
The diameter with diameter greater than another rank of middle single order.
Wherein, the metal material that probe internal ring 10 is the corrosion of electric conductivity excellent and resistance to down-hole slurry with probe outer shroud 5, such as
Beallon.
When device above carries in wellhole, the oil-base mud in wellhole enters from mud entrance 3, through slurry channel 6, finally
Flow out from slurry outlet 7.
Apply the signal source (voltage signal) of certain frequency between probe internal ring 10 and probe outer shroud 5, visited by detection
Head internal ring 10 and the output signal (as current signal) of probe outer shroud 5, the resistance between measuring probe internal ring 10 and probe outer shroud 5
Anti-, thus calculate resistivity and the impedance angle of oil-base mud according to formula (1).
Wherein, ρ is the resistivity of oil-base mud, and L is probe internal ring 10 and the length of probe outer shroud 5, and R is oil-base mud
Resistance, D1 is the external diameter of probe internal ring 10, and D2 is the internal diameter of probe outer shroud 5, and C is impedance angle, and A is the real part of mud impedance, and B is
The imaginary part of mud impedance, Z is the impedance of oil-base mud.
It should be noted that embodiment described above is for only for ease of those skilled in the art understanding, and
It is not used in and limit the scope of the invention, on the premise of the inventive concept without departing from the present invention, those skilled in the art couple
The present invention made any obvious replacement and improve etc. all within protection scope of the present invention.
Claims (4)
1. a kind of device of measurement oil-base mud resistivity is it is characterised in that at least include：Upper binding head assembly (1) and lower company
Connector assembly (8) is it is characterised in that also include：
Probing shell (2), is opened in the mud entrance (3) on probing shell (2) and slurry outlet (7), for probe outer shroud
(5) positioned and ensured probe outer shroud insulating supporting set (4) that described probe outer shroud (5) is insulated with probing shell (2), installed
Probe outer shroud (5) in probe outer shroud insulating supporting set (4), for being positioned to probe internal ring (10) and being ensured in probe
Probe internal ring insulating supporting set (9) that ring (10) and metal pressure-bearing shell (11) insulate, outer with probe positioned at probe internal ring (10)
Slurry channel (6) between ring (5), is arranged on probe internal ring insulating supporting set (9) probe internal ring (10) outward, metal pressure-bearing shell
Body (11), for depositing the electronic circuit sealed compartment (12) of measuring circuit；
Probe outer shroud insulating supporting set (4) is arranged in probing shell (2)；Probe internal ring insulating supporting set (9) is arranged on metal
Pressure-bearing shell (11) is outward；Electronic circuit sealed compartment (12) is located in metal pressure-bearing shell (11)；
Mud entrance (3) is located at the top of slurry channel (6), and slurry outlet (7) is located at the lower section of slurry channel (6)；
One end of probing shell (2) is connected with upper binding head assembly (1), the other end of probing shell (2) and lower union joint assembly
(8) it is connected；
One end of metal pressure-bearing shell (11) is connected with upper binding head assembly (1), the other end of metal pressure-bearing shell (11) with
Union joint assembly (8) is connected；
Probing shell (2) is coaxial with metal pressure-bearing shell (11), and probe outer shroud (5) is coaxial with probe internal ring (10).
2. device according to claim 1 it is characterised in that described probing shell (2) one end pass through screw thread with described
Upper binding head assembly (1) is connected, and the other end of described probing shell (2) passes through Rapid-turning nut and described lower union joint assembly (8)
It is connected.
3. device according to claim 1 is it is characterised in that described probe internal ring insulating supporting set (9) and described probe
Outer shroud insulating supporting set (4) is ladder air-cored axis, and described probe internal ring (10) is arranged on described probe internal ring insulating supporting set
(9), in the less outside cylinder of step diameter, described probe outer shroud (5) is arranged in described probe outer shroud insulating supporting set (4),
And be located on the larger interior cylinder of step diameter.
4. device according to claim 1 is it is characterised in that described probe internal ring (10) with described probe outer shroud (5) is
The metal material of electric conductivity excellent and resistance to down-hole slurry corrosion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410490193.3A CN104265285B (en) | 2014-09-23 | 2014-09-23 | A kind of device of measurement oil-base mud resistivity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410490193.3A CN104265285B (en) | 2014-09-23 | 2014-09-23 | A kind of device of measurement oil-base mud resistivity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104265285A CN104265285A (en) | 2015-01-07 |
| CN104265285B true CN104265285B (en) | 2017-03-08 |
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ID=52156843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410490193.3A Active CN104265285B (en) | 2014-09-23 | 2014-09-23 | A kind of device of measurement oil-base mud resistivity |
Country Status (1)
| Country | Link |
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| CN (1) | CN104265285B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2922103A (en) * | 1956-07-27 | 1960-01-19 | Welex Inc | Electrical resistivity determination of well bore fluids |
| US7183778B2 (en) * | 2005-07-19 | 2007-02-27 | Schlumberger Technology Corporation | Apparatus and method to measure fluid resistivity |
| CN2840073Y (en) * | 2005-11-24 | 2006-11-22 | 中国海洋石油总公司 | Plugging electrical resistivity conductivity sensor |
| CN101696951B (en) * | 2009-10-10 | 2013-02-13 | 中国海洋石油总公司 | Fluid resistivity and conductivity probe |
| CN202228061U (en) * | 2011-09-08 | 2012-05-23 | 中国海洋石油总公司 | Radial connection structure |
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2014
- 2014-09-23 CN CN201410490193.3A patent/CN104265285B/en active Active
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| Publication number | Publication date |
|---|---|
| CN104265285A (en) | 2015-01-07 |
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Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: China Oilfield Services Limited Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee before: China Oilfield Services Limited Patentee before: China National Offshore Oil Corporation |
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| CP01 | Change in the name or title of a patent holder |