CN101694157B - Method for shortening length of log tool and dual laterolog tool with electrode probe internally provided with electronic circuit - Google Patents
Method for shortening length of log tool and dual laterolog tool with electrode probe internally provided with electronic circuit Download PDFInfo
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- CN101694157B CN101694157B CN 200910172263 CN200910172263A CN101694157B CN 101694157 B CN101694157 B CN 101694157B CN 200910172263 CN200910172263 CN 200910172263 CN 200910172263 A CN200910172263 A CN 200910172263A CN 101694157 B CN101694157 B CN 101694157B
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Abstract
The invention discloses a dual laterolog tool with an electrode probe internally provided with an electronic circuit, comprising an upper joint assembly(1), the electronic circuit assembly (3), the electrode probe (5) and a lower steel cylinder (7), wherein a socket assembly (4) is arranged at the lower end of the inner cavity of a core shaft (51) of the electrode probe (5); the socket assembly (4) is in cuttage grafting fixation with a plug (38) of the right end of the electronic circuit assembly(3); and a power frame (32) of the left end of the electronic circuit assembly (3) is fixedly connected with the core shaft (51) by a compression coil (2). The invention has unique design, greatly shortens the length of an instrument string, and has good social and economic benefits after popularization.
Description
One. technical field: the present invention relates to a kind of dual laterolog equipment, particularly relate to a kind of dual laterolog equipment of electrode probe internally provided electronic circuit.
Two. background technology: dual laterolog can be measured original state band and invaded zone formation resistivity simultaneously, normal and microsphere logging instrument combination logging (measurement flushed zone resistivity), obtain well radially deeply, in, shallow three apparent resistivity curves.The resistivity of analysis to measure can be distinguished stratum that is full of conductor flow (like brackish water or F) and the stratum that is full of non conducting fluid (gentle like oil-containing), and further explanation can be obtained true formation resistivity.
Shown in Figure 1 for the electrode composition of dual laterolog instrument and in isotropism homogeneous conductive medium, dark, shallow side direction operating current distribution schematic diagram.
Dual laterolog equipment mainly is made up of last A2 electrode, electrode probe, following A2 ' electrode.A2, A2 ', A1, A1 ', A1*, A1* ', M2, M2 ', M1, five pairs of electrodes of M1 ' they are that the center is symmetrically distributed with the A0 electrode.
A0 is dark, shallow side direction principal current emission electrode.
A2, A2 ' are dark side direction screen stream emission electrode; The return electrode of shallow side direction.
A1, A1 ' are dark, shallow side direction screen stream emission electrode.
M1, M2 and M1 ', M2 ' are dark, shallow side direction provost's electrode.
A1*, A2 and A1* ', A2 ' are dark side direction back-up surveillance electrode.
When instrument in oil well during operate as normal, dark, shallow side direction power control current source is launched main flow and screen stream simultaneously; Under monitor electrode and supervisory circuit effect; Screen stream forces main flow radially to arrive the detection stratum of certain depth; The bucking electrode combination that deeply, shallow side direction is different makes that the degree of depth of surveying is different: dark side direction is measured original state band formation resistivity, and shallow side direction is measured the invaded zone formation resistivity.
In general dual laterolog instrument design, the A2 electrode is generally the steel cylinder formation of bilateral to electronic circuit is housed, and length is near 3 meters.When independent well logging, A2 ' electrode is generally one section steel cylinder with A2 electrode equal length, guarantees and the symmetry of A2 electrode; In traditional combination well detecting Instrument string, A2 ' electrode is generally and is positioned at the outer steel cylinder of bilateral to other loggers of instrument bottom.The part that is positioned between A2 and the A2 ' electrode is generally independent part, is called electrode probe, and above A1*, A1, M2, M1, A0, M1 ', M2 ', A1 ', A1* ' were distributed in, the length of electrode probe generally also had more than 3 meters.Therefore at bilateral during to independent well logging, tool length at least also has nearly 10 meters, when traditional combination logging, bilateral to the length of electronic circuit and electrode probe also near 6 meters.Length is long more, and bilateral is long more to the test leakage length of each pipe nipple of downhole cartridge top, and, in high angle hole and horizontal wellbore logging, be hampered easily and the chance card, use inconvenience.
Three. the content of invention:
Technical problem to be solved by this invention is: a kind of method of uniqueness, shortening logging instrument length that result of use is good, safe and reliable and dual laterolog equipment of electrode probe internally provided electronic circuit of designing is provided.
Technical scheme of the present invention: a kind of method that shortens logging instrument length: the intracavity diameter that under the condition of guaranteed strength, strengthens electrode probe; Optimize the structure of electronic circuit assembly simultaneously; Reduce its volume, then the electronic circuit assembly is installed in the inner chamber of electrode probe.
The plug that is installed in electronic circuit assembly right-hand member is pegged graft with the jack assemblies that is installed in the electrode probe inner chamber; Electrode probe through screw thread with compress bung flange and be connected; This compresses on the power supply skeleton that bung flange is pressed in electronic circuit assembly left end, makes the electronic circuit assembly stiff at the electrode probe inner chamber.
A kind of dual laterolog equipment of electrode probe internally provided electronic circuit; Contain top connection assembly 1, electronic circuit assembly 3, electrode probe 5 and following steel cylinder 7; Wherein, top connection assembly 1 is equipped with socket 101 with movable connection of electrode probe 5 upper ends, top connection assembly 1 inner chamber; Following steel cylinder 7 and movable connection of electrode probe 5 lower ends; Following steel cylinder 7 inner chambers are equipped with plug-assembly 102 and wiring skeleton 6, wiring skeleton 6 and 5 movable connections of electrode probe: the mandrel 51 inner chamber lower ends of said electrode probe 5 are equipped with jack assemblies 4; This jack assemblies 4 is pegged graft with the plug 38 of said electronic circuit assembly 3 right-hand members and is fixed, and the power supply skeleton 32 of said electronic circuit assembly 3 left ends is fixedly connected with said mandrel 51 through compressing bung flange 2.
Said electrode probe 5 is assembled by mandrel 51, electrode retaining collar 53, electrode 54, support ring 55, sealing-plug 56 and rubber 52; Wherein, said mandrel 51 is welded by last steel cylinder 11, core tube 12 and lower contact 14 successively, and; Said lower contact 14 is provided with sealing consent 13 and pin-and-hole; Said sealing-plug 56 is installed in the sealing consent 13, part pin 15 is installed in this pin-and-hole, in order to draw ground wire; The said periphery of going up steel cylinder 11, core tube 12 and lower contact 14 is provided with annular groove; The bottom land of each said annular groove is provided with screwed hole; In order to fixing said support ring 55, said mandrel 51 lower ends are equipped with said jack assemblies 4, and its upper end links to each other with the said bung flange 2 that compresses.
Said electronic circuit assembly 3 is formed by packing ring 31, power supply skeleton 32, plug-assembly 33, vacuum flask 34, bottle inner frame 35, sealing ring 36, transformer framework 37, said plug 38 and the wiring board and the transformer assembling that are installed on the transformer framework 37; Wherein, Lateral current voltage measurement plate 213, side direction signal-processing board 214, earth plate 217, shallow side direction power board 218, dark side direction power board 219, main supervisory circuit plate 220, auxiliary supervisory circuit plate 221 and transformer T7 215 and transformer T8 216 are installed on bottle inner frame 35 successively; The plug-assembly 33 that is installed in bottle inner frame 35 left ends plugs with the sockets 201 that are installed in vacuum flask 34 inside; Bottle inner frame 35 right-hand members connect into an integral body through heat insulation tube 202, heat dump plug 203 and swivel nut 204 with transformer framework 37; Bottle inner frame 35 and each part mounted thereto are positioned at vacuum flask 34, and swivel nut 204 connects into an integral body through screw thread and vacuum flask 34;
Transformer T9 206, transformer T10 207, transformer T11 208, transformer T12 209, transformer T13 210 and pre-amplification circuit plate 222 and calibration circuit plate 223 are installed on the transformer framework 37 successively; Transformer framework 37 and each part mounted thereto are positioned at outside the vacuum flask 34, at vacuum flask 34 right-hand members;
Power supply skeleton 32 links to each other with vacuum flask 34 left ends through screw, is positioned at outside the vacuum flask 34, and side direction 5V power panel 211, side direction 12V power panel 212 and power transformer 205 are installed on it.
Said electrode 54 is made up of utmost point piece 10, junction plate 9 and slotting spring 8; Said electrode 54 comprises four kinds at M electrode, A0 electrode, A1 electrode and A1* electrode; Wherein, M electrode and A0 electrode only are welded with junction plate 9 and insert spring 8 at utmost point piece 10 1 ends, and A1 electrode and A1* electrode all are welded with junction plate 9 and insert spring 8 at utmost point piece 10 two ends; Insert the lead-in wire that spring 8 is used for electrode 54, avoid electrode probe 5 to use the scolding tin welding in pressing process.
Said support ring 55 is made up of reinforcing ring 23, nut 22 and rubber 21, and wherein, said reinforcing ring 23 is formed by two semicircle ring bodies with rubber 21; And; Said rubber 21 compactings are fixed on the outer ring surface of said reinforcing ring 23, and the bonding surface of the two is groove and projective table type structure, and said nut 22 is compressed in the outer ring surface of said rubber 21; In order to fixed electrode 54, and guarantee that electrode 54 and mandrel 51 do not have the conducting of electricity each other.
Said electrode retaining collar 53 is made up of two semicircle ring bodies; And; The top of each semicircle ring body is provided with grooved through hole 24; Be used for the welding between electrode 54 and the electrode retaining collar 53, each semicircle ring body two side ends inwall is provided with cancave cambered surface 25, and the space of this cancave cambered surface 25 is used to place electrode liner plate 26.
Said electrode retaining collar 53 external surfaces are provided with hatching knurling.
Said mandrel 51 external diameters are 74mm, and internal diameter is 57-57.2mm; Top connection assembly 1 is fixed with upper cap 103 and lower cover cap 104 through screw thread respectively with following steel cylinder 7, is used for carrying and protection instrument.
Beneficial effect of the present invention:
1, the present invention simplifies electronic circuitry design, is contained in electronic circuit in the cavity of electrode probe.When combination logging, the A2 electrode is to be positioned at the outer steel cylinder of bilateral to other loggers on instrument top; A2 ' electrode is to be positioned at the outer steel cylinder of bilateral to other loggers of instrument bottom.With respect to traditional combination well detecting Instrument string, such design makes length further shorten about 3 meters, and the length of instrument string significantly shortens when making combination logging, has reduced to be positioned at the test leakage length of bilateral to each pipe nipple of downhole cartridge top; In high angle hole and horizontal wellbore logging, effectively reduced the instrument string at being hampered and meeting the card possibility of down-hole, in practical engineering application, have a crucial meaning.
2, support ring of the present invention is made up of reinforcing ring, nut and rubber, and reinforcing ring can increase the intensity of whole support ring, and nut is in order to fixed electrode, and guarantees that electrode and mandrel do not have the conducting of electricity each other, improve the safety of use and the accuracy of detection.
3, electrode retaining collar of the present invention adopts the line cutting mode to cut into two semicircular ring, and cuts out the circular arc of two R48 of place, and the space of R48 circular arc is used to place the electrode liner plate, and inboard rubber is not soldered damage when protecting two semicircular ring welding.
4, advanced technology of the present invention and uniqueness, the selling market is wide, has good social benefit and economic benefit.
Four. description of drawings:
Fig. 1 forms for the electrode of dual laterolog instrument and in isotropism homogeneous conductive medium, dark, shallow side direction operating current distribution schematic diagram;
Fig. 2 is the structural representation of the dual laterolog equipment of the electrode probe internally provided electronic circuit of the present invention;
Fig. 3 is the structural representation of electrode probe shown in Figure 1;
Fig. 4-1 and Fig. 4-2 is the structural representation of mandrel shown in Figure 3;
Fig. 4-3 is an A-A sectional drawing among Fig. 4-1;
Fig. 4-4 is an I place enlarged drawing among Fig. 4-2;
Fig. 4-5 is a B-B sectional drawing among Fig. 4-2;
Fig. 5 is the structural representation of Supporting ring shown in Figure 3;
Fig. 5-1 is the left pseudosection of Supporting ring shown in Figure 5;
Fig. 5-2 is the vertical view of Supporting ring shown in Figure 5;
Structural representation when Fig. 6 is not cut open for reinforcing ring shown in Figure 5;
Fig. 6-1 is the left view of Supporting ring shown in Figure 6;
Fig. 7 is one of structural representation of electrode shown in Figure 3;
Fig. 7-1 is the upward view of electrode shown in Figure 7;
Fig. 8 is the structural representation of electrode retaining collar shown in Figure 3;
Fig. 8-1 is the vertical view of electrode retaining collar shown in Figure 8;
Fig. 8-2 is the left view of electrode retaining collar shown in Figure 8;
Fig. 9 is the assembly structure sketch map of electrode retaining collar shown in Figure 8;
Figure 10-1,10-2,10-3 are the structural representation of electronic circuit assembly shown in Figure 2;
Figure 10-4 is a C-C sectional drawing among Figure 10-3;
Figure 11 is the structural representation of stock spanner;
Figure 12 is the structural representation of box spanner;
Figure 12-1 is the right view of box spanner shown in Figure 12;
Figure 13 is the structural representation of clamp nut shown in Figure 2;
Figure 13-1 is the left view of clamp nut shown in Figure 13;
Figure 14 is the structural representation of dowelled spanner;
Figure 14-1 is the right view of dowelled spanner shown in Figure 14.
Five. the specific embodiment:
Embodiment: referring to Fig. 1-Figure 14-1, among the figure, 1-top connection assembly, 2-compresses bung flange, 3-electronic circuit assembly, 4-jack assemblies, 5-electrode probe, 6-wiring skeleton; Steel cylinder under the 7-, 8-inserts spring, the 9-junction plate, 10-utmost point piece, the last steel cylinder of 11-, 12-core tube, 13-seals consent; The 14-lower contact, 15-part pin, 21-rubber, 22-nut, 23-reinforcing ring, 24-grooved through hole, 25-cancave cambered surface; 26-electrode liner plate, 31-packing ring, 32-power supply skeleton, 33-plug-assembly, 34-vacuum flask, 35-bottle inner frame, 36-sealing ring; The 37-transformer framework, 38-plug, 51-mandrel, 52-rubber, 53-electrode retaining collar, 54-electrode, 55-support ring; The 56-sealing-plug, 101-socket, 102-plug-assembly, 103-upper cap, 104-lower cover cap, 201-socket, the heat insulation tube of 202-; 203-heat dump plug, 204-swivel nut, 205-power transformer, 206-transformer T9,207-transformer T10,208-transformer T11,209-transformer T12; 210-transformer T13,211-side direction 5V power panel, 212-side direction 12V power panel, 213-lateral current voltage measurement plate, 214-side direction signal-processing board, 215-transformer T7,216-transformer T8; The 217-earth plate, the shallow side direction power board of 218-, the dark side direction power board of 219-, 220-master's supervisory circuit plate, 221-assists supervisory circuit plate, 222-pre-amplification circuit plate, 223-calibration circuit plate
Technology realizes
1.1 basic comprising
As shown in Figure 2, the dual laterolog instrument of built-in electronic circuit form mainly by top connection assembly 1, compress bung flange 2, electronic circuit 3, jack assemblies 4, electrode probe 5, wiring skeleton 6, several parts such as steel cylinder 7, socket 101, plug-assembly 102, upper cap 103 and lower cover cap 104 are formed down.The rubber part of electrode probe 5 adopts the specific rubber one-step mould to form.
Electronic circuit assembly 3 is installed in electrode probe 5 inner chambers, the plug 38 through being installed in electronic circuit assembly 3 right-hand members be installed in electrode probe 5 inner chamber jack assemblies 4 and peg graft.Compress bung flange 2 and electrode probe 5 through being threaded, and electronic circuit 3 is compressed, make electronic circuit 3 stiff at electrode probe 5 inner chambers.Wiring skeleton 6 is connected with electrode probe 5 through screw, and wiring skeleton 6 is used to the lead of transferring and drawing from electrode probe 5 rubber parts.
Top connection assembly 1 is connected with electrode probe 5 through screw thread, and inner chamber is equipped with socket 101, and top connection assembly 1 is used for being connected with the Other Instruments on top with socket 101.Following steel cylinder 7 is connected with electrode probe 5 through screw thread, and inner chamber is equipped with plug-assembly 102, and following steel cylinder 7 is used for being connected with the Other Instruments of bottom with plug-assembly 102.Upper cap 103 and lower cover cap 104 are screwed on top connection assembly 1 and the following steel cylinder 7 through screw thread respectively, are used for carrying and protection instrument.
Because adopted electronic circuit assembly 3 is contained in the mode in electrode probe 5 cavitys, the total length of whole instrument is 3.668m, effective length is 3.271m, has greatly shortened the combination well detecting Instrument string length.
1.2 electrode probe 5
As shown in Figure 3, electrode probe mainly is made up of several parts such as mandrel 51, electrode retaining collar 53, electrode 54, support ring 55, sealing-plug 56 and rubber 52.
1.2.1 mandrel 51
As shown in Figure 4, mandrel 51 mainly is made up of last steel cylinder 11, core tube 12 and lower contact 14 3 parts, adopts welding manner to connect each other; Mandrel 51 is base support of entire electrode probe 5; Under the situation that satisfies electrode probe 5 moulding requirements, select the external diameter of big core tube 12 as far as possible for use, under the condition that satisfies the 140MPa pressure-bearing; Reduce the wall thickness of core tube 12, be used for installing the electronic circuit assembly with the inner chamber that increases core tube 12.The actual external diameter 74mm that selected for use of main part, internal diameter 57mm, and the Surface Machining width is 20.5mm outside, the degree of depth is the groove of 1mm, and in each groove, has processed 4 flat screwed holes in order to fixing branch pushing out ring 55.7 sealings of processing consent 13 is in order to install sealing-plug 56 in lower contact 14.Be welded on two part pins 15 in the lower contact 14 in order to draw ground wire.
1.2.2 support ring 55
Be made up of reinforcing ring 23, nut 22 and rubber 21 etc. like Fig. 5, support ring shown in Figure 6, reinforcing ring 23 is in order to increase the intensity of support ring 55, and nut 22 is compressed on rubber 21 in order to fixed electrode 54, and guarantees that electrode 54 and mandrel 51 do not have the conducting of electricity each other.
1.2.3 electrode 54
Electrode 54 as shown in Figure 7 is made up of utmost point piece 10, junction plate 9 and slotting spring 8 etc.; Four kinds at total M electrode, A0 electrode, A1 electrode and A1* electrode; Wherein M electrode and A0 electrode only have junction plate 9 and insert spring 8 at utmost point piece 10 1 ends, and all there is junction plate 9 at other electrode two ends and inserts spring 8.Utmost point piece 10, junction plate 9 and slotting spring 8 adopt welding manner to connect each other.Insert the lead-in wire that spring 8 is used for electrode 54, avoid electrode probe 5 to use the scolding tin welding in pressing process.
1.2.4 electrode retaining collar 53
1.2.5 the processing of electrode probe 5
1.2.5.1 the compacting of electrode probe 5
Getting into the compacting manufacturing process of electrode probe 5 after machined piece is accomplished, at first is the compacting of support ring 55.Get all the reinforcing ring 23 and nut 22 and sandblast earlier ready and brush to be stained with and connect agent, the mould compacting support ring 55 that utilization is special-purpose.Secondly with mandrel 51 and electrode 54 sandblasts.With support ring 55 hackings and be fixed on mandrel 51.Each part external surface brushed to be stained with connect agent.Carry out encapsulate and wiring then.The mandrel 51 that to wrap glue is at last put into the mould of electrode probe 5 and is suppressed.
1.2.5.2 the welding of electrode retaining collar 53
The electrode probe 5 that suppresses is through behind the high temperature and pressure test, and affirmation can meet the demands, and at first carries out the preceding preparation of welding of electrode retaining collar 53.Each naked drain terminal that goes between wraps up with insulating tape with sealing-plug, the high temperature scolding tin of on electrode 54 surfaces and electrode retaining collar 53, burn-oning in the slit-like through-holes 24.The roller that the support of support electrode probe contacts with electrode probe should be a non-metal insulating material.Secondly, when welding electrode ring 53, be not soldered damage in order to protect rubber, as shown in Figure 9, the electrode liner plate 26 of the copper of a thick 2mm of use is installed between electrode retaining collar 53 and the rubber in the commissure.During welding, each weld seam hockets, and notes cooling, and is too high and damage rubber to avoid temperature.At last, after welding completion, the smoothing weldering is met and high temperature scolding tin is expired in weldering in the slit-like through-holes on the electrode retaining collar 53 24.
1.3 the assembling of electronic circuit assembly 3
Electronic circuit assembly 3 shown in figure 10 is formed by packing ring 31, power supply skeleton 32, plug-assembly 33, vacuum flask 34, bottle inner frame 35, sealing ring 36, transformer framework 37, plug 38 and the wiring board and the transformer assembling that are installed on the transformer framework 37.After electronic circuit assembly 3 was packed electrode probe 5 into, the plug 38 of right-hand member was connected with the jack assemblies 4 that is positioned at electrode probe 5 bottoms among the figure.Screw thread among the figure on the left end A-A cross section and a pair of keyway are used for pack into the assembling process of electrode probe 5 of electronic circuit assembly 3.Sealing ring 36 among the figure is used for fixing the threaded collar of vacuum flask 34.Prevent that threaded collar from getting loose.
Lateral current voltage measurement plate 213, side direction signal-processing board 214, earth plate 217, shallow side direction power board 218, dark side direction power board 219, main supervisory circuit plate 220, auxiliary supervisory circuit plate 221 and transformer (T7) 215 and transformer (T8) 216 are installed on bottle inner frame 35 successively.Left end plugs with the sockets 201 that are installed in vacuum flask 34 inside through the plug-assembly 33 that is installed on bottle inner frame 35.Right-hand member connects into an integral body through heat insulation tube 202, heat dump plug 203 and swivel nut 204 with transformer framework 37.Bottle inner frame 35 and each part mounted thereto are positioned at vacuum flask 34.Swivel nut 204 connects into an integral body through screw thread and vacuum flask 34.Sealing ring 36 among the figure is used for fixing the swivel nut 204 of vacuum flask 34.Prevent that swivel nut 204 from getting loose.
Transformer (T9) 206, transformer (T10) 207, transformer (T11) 208, transformer (T12) 209, transformer (T13) 210 and pre-amplification circuit plate 222 and calibration circuit plate 223 are installed transformer framework 3) successively.Transformer framework 37 and each part mounted thereto are positioned at outside the vacuum flask 34, at vacuum flask 34 right-hand members.And the plug through being installed in transformer framework 37 right-hand members 38 be installed in electrode probe 5 inner chamber jack assemblies 4 and peg graft.
Power supply skeleton 32 links to each other with vacuum flask 34 left ends through screw, is positioned at the left side of vacuum flask 34.Side direction 5V power panel 211, side direction 12V power panel 212 and power transformer 205 are installed on it.Compressing power supply skeleton 32 when compressing bung flange 2, be installed in power supply skeleton 3) packing ring 31 of left end plays vibration damping and locking effect.
Power supply skeleton 32, bottle inner frame 35, transformer framework 37 connect into an independently integral body through vacuum flask 34 and other component.When electronic circuit assembly 3 needs to safeguard with maintenance, only need dismounting upper cap 103, socket 101, top connection assembly 1 and compress bung flange 2 down, just can electronic circuit 3 be taken out from electrode probe 5 inner chambers, be placed on the workbench and safeguard.
1.4 special tool
1.4.1 stock spanner
Shown in figure 11, the stock spanner is used for the jack assemblies 4 of installation or removal electrode probe 5 bottoms.
1.4.2 box spanner
Shown in figure 12, box spanner is used for electronic circuit assembly 3 is packed in the electrode probe 5 or electronic circuit assembly 3 is taken out in electrode probe 5.And be used for installation or removal and compress bung flange 2 (Figure 13)
1.4.3 dowelled spanner
Shown in figure 14, be used for box spanner when electronic circuit assembly 3 takes off, guarantee that rotation does not appear in electronic circuit assembly 3 electrode probe 5 in.
1.5 the assembling of circuit skeleton and electrode probe
1.5.1 assembling electronic circuit skeleton
To go up, middle partial circuit skeleton packs in the vacuum flask 34; And turn clockwise and (note not being rotated counterclockwise; Be rotated counterclockwise and cause circuit skeleton and vacuum flask 34 interpolation blocks to become flexible); After tongue and the keyway on vacuum flask 34 interpolation blocks of 27 core plugs of skeleton lower end are aligned, be forced into skeleton and put in place.Clockwise rotate vacuum flask 34 clamping nuts, compress the circuit skeleton.Move the O-ring seals that compresses bung flange 2 rear portions, O-ring seals is snapped in the cannelure, prevent to compress bung flange 2 and become flexible because of vibration.So far the entire circuit skeleton becomes one.
1.5.2 the assembling of circuit skeleton and electrode probe
At first the box spanner with special use is screwed in circuit skeleton upper end clockwise, notes not twisting too tightly; Then with circuit skeleton aligned with core tube 12, parallel, slowly push in the electrode probe core tube 12, note not running in the push-on process spring leaf on circuit and transformer and the skeleton on the skeleton, in order to avoid cause damage; Clockwise rotate circuit skeleton (attention is forbidden to rotate counterclockwise); The centering direction; The circuit skeleton is advanced in the electrode probe core tube 12, circuit skeleton lower end plug is connected reliably, with the jack assemblies 4 of electrode probe bottom up to continuing to clockwise rotate the circuit skeleton again.With circuit skeleton location, the circuit skeleton can not be rotated with dowelled spanner, rotate counterclockwise box spanner, box spanner is taken off.Pay special attention to: the socket generation in circuit skeleton and the electrode probe steel cylinder is rotated counterclockwise, in order to avoid twist into two parts the lead that is connected with the socket of electrode probe bottom.In case find that jack assemblies 4 is loosening, confirming under lead and the intact situation of solder joint, clockwise electrode probe core tube 12 interior sockets are tightened with the stock spanner.Then, clockwise rotate with box spanner and to compress bung flange, will compress bung flange 2 and be screwed to the position, prevent that the circuit skeleton is loosening.
Claims (8)
1. the dual laterolog equipment of an electrode probe internally provided electronic circuit; Contain top connection assembly (1), electronic circuit assembly (3), electrode probe (5) and following steel cylinder (7); Wherein, top connection assembly (1) and electrode probe (5) the movable connection of upper end, top connection assembly (1) inner chamber is equipped with socket (101); Following steel cylinder (7) and electrode probe (5) the movable connection of lower end; Following steel cylinder (7) inner chamber is equipped with plug-assembly (102) and wiring skeleton (6), and wiring skeleton (6) and movable connection of electrode probe (5) is characterized in that: mandrel (51) the inner chamber lower end of said electrode probe (5) is equipped with jack assemblies (4); This jack assemblies (4) is pegged graft with the plug (38) of said electronic circuit assembly (3) right-hand member and is fixed, and the power supply skeleton (32) of said electronic circuit assembly (3) left end is fixedly connected with said mandrel (51) through compressing bung flange (2).
2. the dual laterolog equipment of electrode probe internally provided electronic circuit according to claim 1; It is characterized in that: said electrode probe (5) is assembled by mandrel (51), electrode retaining collar (53), electrode (54), support ring (55), sealing-plug (56) and rubber (52); Wherein, said mandrel (51) is welded by last steel cylinder (11), core tube (12) and lower contact (14) successively, and; Said lower contact (14) is provided with sealing consent (13) and pin-and-hole; Said sealing-plug (56) is installed in the sealing consent (13), part pin (15) is installed, in this pin-and-hole in order to draw ground wire; The said periphery of going up steel cylinder (11), core tube (12) and lower contact (14) is provided with annular groove; The bottom land of each said annular groove is provided with screwed hole; In order to fixing said support ring (55); Said mandrel (51) lower end is equipped with said jack assemblies (4), and its upper end links to each other with the said bung flange (2) that compresses.
3. the dual laterolog equipment of electrode probe internally provided electronic circuit according to claim 1 is characterized in that: said electronic circuit assembly (3) is by packing ring (31), power supply skeleton (32), plug-assembly (33), vacuum flask (34), bottle inner frame (35), sealing ring (36), transformer framework (37), said plug (38) and be installed in wiring board on the transformer framework (37) and assemble with transformer and form; Wherein, Lateral current voltage measurement plate (213), side direction signal-processing board (214), earth plate (217), shallow side direction power board (218), dark side direction power board (219), main supervisory circuit plate (220), auxiliary supervisory circuit plate (221) and transformer T7 (215) and transformer T8 (216) are installed on bottle inner frame (35) successively; Plug-assembly (33) socket (201) inner with being installed in vacuum flask (34) that is installed in a bottle inner frame (35) left end plugs; Bottle inner frame (35) right-hand member connects into an integral body through heat insulation tube (202), heat dump plug (203) and swivel nut (204) and transformer framework (37); Bottle inner frame (35) and each part mounted thereto are positioned at vacuum flask (34), and swivel nut (204) connects into an integral body through screw thread and vacuum flask (34);
Transformer T9 (206), transformer T10 (207), transformer T11 (208), transformer T12 (209), transformer T13 (210) and pre-amplification circuit plate (222) and calibration circuit plate (223) are installed on the transformer framework (37) successively; Transformer framework (37) and each part mounted thereto are positioned at outside the vacuum flask (34), at vacuum flask (34) right-hand member;
Power supply skeleton (32) links to each other with vacuum flask (34) left end through screw, is positioned at outside the vacuum flask (34), and side direction 5V power panel (211), side direction 12V power panel (212) and power transformer (205) are installed on it.
4. the dual laterolog equipment of electrode probe internally provided electronic circuit according to claim 2; It is characterized in that: said electrode (54) is made up of utmost point piece (10), junction plate (9) and slotting spring (8); Said electrode (54) comprises four kinds at M electrode, A0 electrode, A1 electrode and A1* electrode; Wherein, M electrode and A0 electrode only are welded with junction plate (9) and insert spring (8) at utmost point piece (10) one ends, and A1 electrode and A1* electrode all are welded with junction plate (9) and insert spring (8) at utmost point piece (10) two ends; Insert the lead-in wire that spring (8) is used for electrode (54), avoid electrode probe (5) to use the scolding tin welding in pressing process.
5. the dual laterolog equipment of electrode probe internally provided electronic circuit according to claim 2; It is characterized in that: said support ring (55) is made up of reinforcing ring (23), nut (22) and rubber (21), and wherein, said reinforcing ring (23) and rubber (21) are formed by two semicircle ring bodies; And; Said rubber (21) compacting is fixed on the outer ring surface of said reinforcing ring (23), and the bonding surface of the two is groove and projective table type structure, and said nut (22) is compressed in the outer ring surface of said rubber (21); In order to fixed electrode (54), and guarantee that electrode (54) and mandrel (51) do not have the conducting of electricity each other.
6. the dual laterolog equipment of electrode probe internally provided electronic circuit according to claim 2; It is characterized in that: said electrode retaining collar (53) is made up of two semicircle ring bodies; And the top of each semicircle ring body is provided with grooved through hole (24), is used for the welding between electrode (54) and the electrode retaining collar (53); Each semicircle ring body two side ends inwall is provided with cancave cambered surface (25), and the space of this cancave cambered surface (25) is used to place electrode liner plate (26).
7. the dual laterolog equipment of electrode probe internally provided electronic circuit according to claim 6, it is characterized in that: said electrode retaining collar (53) external surface is provided with hatching knurling.
8. according to the dual laterolog equipment of each described electrode probe internally provided electronic circuit of claim 1-7, it is characterized in that: said mandrel (51) external diameter is 74mm, and internal diameter is 57-57.2mm; Top connection assembly (1) and following steel cylinder (7) are fixed with upper cap (103) and lower cover cap (104) through screw thread respectively, are used for carrying and protection instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910172263 CN101694157B (en) | 2009-09-25 | 2009-09-25 | Method for shortening length of log tool and dual laterolog tool with electrode probe internally provided with electronic circuit |
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| CN 200910172263 CN101694157B (en) | 2009-09-25 | 2009-09-25 | Method for shortening length of log tool and dual laterolog tool with electrode probe internally provided with electronic circuit |
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| CN101694157A CN101694157A (en) | 2010-04-14 |
| CN101694157B true CN101694157B (en) | 2012-04-18 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102678103B (en) * | 2012-05-09 | 2015-02-18 | 中国电子科技集团公司第二十二研究所 | Method for determining size of groove of drill collar of while drilling electromagnetic wave electrical resistivity instrument |
| CN105239994A (en) * | 2014-07-11 | 2016-01-13 | 中国石油集团长城钻探工程有限公司 | Transformer short piece and electronic framework used for same |
| CN105298468B (en) * | 2014-07-24 | 2020-09-04 | 中国石油集团长城钻探工程有限公司 | Pressure-bearing joint of logging instrument |
| CN105587315B (en) * | 2015-12-18 | 2019-01-15 | 杭州瑞利声电技术有限公司 | A kind of main electrode probe lateral based on soft-focus array |
| CN105649604B (en) * | 2015-12-30 | 2019-12-06 | 中国石油天然气集团公司 | electrode circuit built-in structure |
| CN107060743A (en) * | 2016-12-29 | 2017-08-18 | 中国石油天然气集团公司 | A kind of mud resistivity probe |
| CN108254620A (en) * | 2017-12-21 | 2018-07-06 | 中国电子科技集团公司第二十二研究所 | Resistivity measurement instrument |
| CN112859175B (en) * | 2021-01-04 | 2023-04-07 | 中国石油天然气集团有限公司 | Transmitting electrode structure |
| CN114198097B (en) * | 2022-02-18 | 2022-06-14 | 东营仪锦能源科技有限公司 | Drilling-following type double lateral logging instrument |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2351551Y (en) * | 1998-01-20 | 1999-12-01 | 西安石油勘探仪器总厂 | High-resolution double-lateral log equipment electrode system |
| CN101245702A (en) * | 2008-01-03 | 2008-08-20 | 杭州瑞利声电技术公司 | Constant-power dual side-direction well measuring equipment |
| CN201496066U (en) * | 2009-09-25 | 2010-06-02 | 中国电子科技集团公司第二十二研究所 | Bilateral logging instrument of electrode probe built-in electronic line |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2351551Y (en) * | 1998-01-20 | 1999-12-01 | 西安石油勘探仪器总厂 | High-resolution double-lateral log equipment electrode system |
| CN101245702A (en) * | 2008-01-03 | 2008-08-20 | 杭州瑞利声电技术公司 | Constant-power dual side-direction well measuring equipment |
| CN201496066U (en) * | 2009-09-25 | 2010-06-02 | 中国电子科技集团公司第二十二研究所 | Bilateral logging instrument of electrode probe built-in electronic line |
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| 段宝良等.SCH-701恒功率双侧向测井仪研制.《石油仪器》.2002,第16卷(第6期),第8-10页. * |
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