CN104420863A - Modified mechanical structure logging instrument suitable for detection of high-temperature high-pressure slim-hole oil and gas wells - Google Patents
Modified mechanical structure logging instrument suitable for detection of high-temperature high-pressure slim-hole oil and gas wells Download PDFInfo
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- CN104420863A CN104420863A CN201310399148.2A CN201310399148A CN104420863A CN 104420863 A CN104420863 A CN 104420863A CN 201310399148 A CN201310399148 A CN 201310399148A CN 104420863 A CN104420863 A CN 104420863A
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- instrument
- lower contact
- pipe nipple
- logging instrument
- transformer
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- 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
- E21B47/00—Survey of boreholes or wells
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Geophysics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses a modified mechanical structure logging instrument suitable for detection of high-temperature high-pressure slim-hole oil and gas wells. The modified mechanical structure logging instrument comprises a housing, an upper connector, an insulating bottle sub, a power module sub, a transformer sub and a lower connector; the housing is axially provided with a first end and a second end both opened; the upper connector is hermetically connected to the first end of the housing; a first multi-core electrical connector is disposed in the upper connector; an electronic circuit sub is disposed within an insulating bottle sleeve of the insulating bottle sub and is electrically connected with the first multi-core electrical connector in the upper connector at least; the lower connector is hermetically connected to the second end of the housing. The insulating bottle sub, the power module sub and the transformer sub are serially connected within the housing sequentially from top to bottom.
Description
Technical field
The present invention relates to geophysical probing technique, relate to the logging instrument for Oil/gas Well detection particularly.
Background technology
As everyone knows, global energy requirements is huge, and in the current and following quite a long time, most of energy demand in the whole world still must rely on fossil fuel to meet.Therefore, gas industries needs to strengthen the energy demand that exploration and development activity meets future.
Such as, but find and develop new oil-gas reservoir and be faced with a series of challenge, in current oil-gas exploration and development process, the ultradeep well of the HTHP slim-hole of appearance gets more and more.And the environment of this HTHP slim-hole can propose certain particular/special requirement to the technology needed for Reservoir Development.
Current, the external diameter of prior art logging instrument usually comparatively large (generally at more than Φ 92mm), seriously limits the scope of application of logging instrument.Such logging instrument has not only been difficult to the test assignment of casing damaged well, and must take out after oil pipe through operation and just can test before well logging.In the well section that distortion is serious, such logging instrument usually also can be hindered, and does not detect deformation point or enrolls less than complete well-log information.And such logging instrument can not be applicable to the distortion well that those have slim-hole more.
In addition, the logging instrument of prior art, also due to the restriction of electronic devices and components, some mechanical material serviceability temperature etc., makes their most high-temperature resistant be generally only about 175 DEG C, maximumly withstand voltagely be generally only about 140Mpa.Such logging instrument can not meet the demand of superhigh temperature, super-pressure, slim-hole well logging construction.
Summary of the invention
An object of the present invention is to provide a kind of logging instrument being applicable to the detection of HTHP slim-hole Oil/gas Well.
A further object of the present invention to make logging instrument have certain simplification in assembling, maintenance.
Of the present invention one further object be to make logging instrument more durable, reliable.
For this reason, the invention provides a kind of logging instrument for Oil/gas Well detection, comprising: tool housing, it in axial direction has first end and second end of opening; Instrument top connection, it is connected to the first end of described tool housing gas-tight seally, and is wherein provided with the first multicore electrical connector; Vacuum flask pipe nipple, the electronic cartridge of described logging instrument is arranged in the insulation bottle cover of described vacuum flask pipe nipple, and is at least electrically connected with the first multicore electrical connector in described instrument top connection; Power module pipe nipple; Transformer pup joint; With instrument lower contact, it is connected to the second end of described tool housing gas-tight seally, and wherein, described vacuum flask pipe nipple, described power module pipe nipple, described transformer pup joint successively from top to down are arranged in series in described tool housing.
Preferably, the adjacent end portion of described vacuum flask pipe nipple, described power module pipe nipple, described transformer pup joint is socketed successively and is fixed together the overall instrument mandrel of formation one by radial screw.
Preferably, described instrument lower contact to be screwed with described tool housing by screw thread and is connected; And described instrument top connection to be screwed with described tool housing by screw thread and is connected, and a part for described instrument top connection stretches in described tool housing, compresses residence and states instrument mandrel.
Preferably, be provided with an overall vacuum flask pipe nipple mandrel in described insulation bottle cover, described vacuum flask pipe nipple mandrel comprises the heat insulation spring together that is permanently connected successively, upper absorber, electronic cartridge, multi-pin connector, multi-core socket and lower absorber; The lower end of described vacuum flask pipe nipple mandrel is tightened in described insulation bottle cover by the external screw thread on described lower absorber; And the upper end of described insulation bottle cover is by screw thread end cap termination, a part for described screw thread end cap stretches in described insulation bottle cover, compresses residence and states vacuum flask pipe nipple mandrel.
Preferably, spring base and transformer lower contact are equipped with in the lower end of described transformer pup joint, are provided with axial compression spring between described spring base and described transformer lower contact.
Preferably, described spring base has the center outrigger shaft to downward-extension; Described axial compression spring is arranged around described center outrigger shaft; And between the interior diapire of described center outrigger shaft and described transformer lower contact at least described axial compression spring in the raw time there is spacing.
Preferably, the axially extended sidewall of described transformer lower contact has two diametrically, axially extended chutes; And described transformer lower contact is connected to the end section of the center outrigger shaft of described spring base slidably by the spiral shell volume pin extending radially through described chute.
Preferably, the lateral wall of described transformer lower contact is provided with axially extended positioning key; The inner hole wall of described instrument lower contact is provided with positioning spline; And the positioning key in described transformer lower contact matches with the positioning spline in described instrument lower contact.
Preferably, the second multicore electrical connector is provided with in described instrument lower contact.
Logging instrument of the present invention, owing to have employed novel frame for movement, greatly improves the heat resisting and pressure resisting index of logging instrument, can meet the well logging construction operation demand of HTHP or even superhigh temperature super-pressure slim-hole Oil/gas Well.Particularly, the most high-temperature resistant of logging instrument of the present invention can up to 220 DEG C, the highlyest withstand voltagely up to 175Mpa, and can be applicable to the slim-hole Oil/gas Well of hole diameter at below 110mm.
And logging instrument of the present invention is not only easy to assembling and maintenance, and can effectively eliminate or improve logging instrument and occur that in hot environment heat expansion is out of shape the damage and/or dismounting difficult problem caused, and makes logging instrument of the present invention more reliable, durable.
According to hereafter detailed description of the preferred embodiment of the present invention with reference to the accompanying drawings, those skilled in the art will become more clear above-mentioned and other objects, advantage and feature of the present invention.
Accompanying drawing explanation
Hereinafter will with reference to accompanying drawing and with exemplary and non-limiting way is described in detail the preferred embodiments of the present invention, Reference numeral identical in accompanying drawing denotes same or similar parts or part.It should be appreciated by those skilled in the art that accompanying drawing may not be drawn by actual ratio.In accompanying drawing:
Fig. 1 shows according to an embodiment of the invention for the perspective schematic view of the logging instrument of Oil/gas Well detection;
Fig. 2 is the schematic side elevation of the top connection of logging instrument shown in Fig. 1;
Fig. 3 is the schematic cross sectional views of top connection shown in Fig. 2 of obtaining along cutting line I-I;
Fig. 4 is the schematic side elevation of the lower contact of logging instrument shown in Fig. 1;
Fig. 5 is the schematic cross sectional views of lower contact shown in Fig. 4 of obtaining along cutting line II-II;
Fig. 6 is the schematic, exploded perspective view of the vacuum flask pipe nipple of logging instrument shown in Fig. 1;
Fig. 7 is the perspective schematic view of the transformer pup joint of logging instrument shown in Fig. 1;
Fig. 8 is the spring base of the lower end of transformer pup joint shown in Fig. 7 and the perspective schematic view of transformer lower contact assembly.
Detailed description of the invention
Fig. 1 shows according to an embodiment of the invention for the logging instrument 10 of Oil/gas Well detection.In general, logging instrument 10 comprises tool housing 110, instrument top connection 120, vacuum flask pipe nipple 130, power module pipe nipple 140, transformer pup joint 150 and instrument lower contact 160.Wherein, vacuum flask pipe nipple 130, power module pipe nipple 140, transformer pup joint 150 successively from top to down be arranged in series in tool housing 110.Preferably, the adjacent end portion of vacuum flask pipe nipple 130, power module pipe nipple 140 and transformer pup joint 150 is socketed successively and is housed in tool housing 110 by the radial screw overall instrument mandrel of formation one that is fixed together.
Tool housing 110 such as can be the cylindrical shape pressure-proof outer cover of a hollow, and it preferably has 140Mpa, 175Mpa anti-pressure ability.Tool housing 110 in axial direction has first end 111 and second end 112 of opening.In one embodiment, the external diameter of tool housing 110 is most preferably configured to 92mm, 76mm.For ease of instrument top connection 120 and instrument lower contact 160 respectively gas-tight seal terminate to first end 111 and second end 112 of tool housing 110, instrument top connection 120 and instrument lower contact 160 preferably all to be screwed with tool housing 110 by screw thread and are connected, and a part at least instrument top connection 120 stretches in tool housing 110, compress instrument mandrel.Such as, this by forming internal thread in the inner wall surface of the contiguous first end 111 of tool housing 110 and the second end 112, and the external surface section of instrument top connection 120 and instrument lower contact 160 forms corresponding external screw thread to realize.In addition, those skilled in the art also can recognize also can arrange the groove holding O-ring seals, to realize sealing better on some section of the external surface of instrument top connection 120 and instrument lower contact 160.
See Fig. 2 and Fig. 3, for the ease of the electrical connection (comprise electrically and signal is connected) of logging instrument 10 and the Other Instruments in ground system or residing logger string above it, the first multicore electrical connector 121 is preferably provided with, such as a normal pressure 28 core socket in instrument top connection 120.Instrument top connection 120 preferably also provides a swivel nut draw ring 122 that can rotate relative to instrument top connection 120.The upper section 123 of this swivel nut draw ring 122 is provided with external screw thread.When logging instrument 10 docks with other instruments, turn swivel nut draw ring 122 only can be leaned on to achieve a butt joint, add the simplicity that logging instrument of the present invention uses.
See Fig. 4 and Fig. 5, in instrument lower contact 160, be preferably provided with the second multicore electrical connector 161, such as normal pressure 28 core plug, so that the electrical connection of logger below other in providing logging instrument 10 and residing logger string.
Fig. 6 is the schematic, exploded perspective view of the vacuum flask pipe nipple 130 of logging instrument 10.The electronic cartridge of logging instrument 10 to be arranged in the insulation bottle cover 131 of vacuum flask pipe nipple 130 and to be at least electrically connected with the first multicore electrical connector 121 in instrument top connection 120.
An overall vacuum flask pipe nipple mandrel is provided with in insulation bottle cover 131.This vacuum flask pipe nipple mandrel comprises heat insulation spring 133, upper absorber 134, electronic cartridge 135, multi-pin connector 136, multi-core socket 137 and lower absorber 138, these parts are permanently connected together successively, such as, fix with radial screw after being socketed by adjacent end portion.The lower end of this vacuum flask pipe nipple mandrel is tightened on the bottom of insulation bottle cover 131 by the external screw thread on lower absorber 138.The upper end of insulation bottle cover 131 can by screw thread end cap 132 termination.A part for screw thread end cap 132 stretches in insulation bottle cover 131, compresses vacuum flask pipe nipple mandrel, makes it be fixed in insulation bottle cover 131.The multi-pin connector 136 arranged in vacuum flask pipe nipple mandrel and multi-core socket 137 avoid and are directly connected with power module pipe nipple 140 through vacuum flask pipe nipple 130 by the wire harness of electronic cartridge 135, facilitate Denso and the maintenance of electronic cartridge 135.In one embodiment, multi-pin connector 136 and multi-core socket 137 can be normal pressure 29 core plug and socket respectively.
Power module pipe nipple 140 is arranged in tool housing 110 adjacent to vacuum flask pipe nipple 130.In various embodiments of the present invention, various suitable power module pipe nipple can be selected.The concrete structure of power module pipe nipple, circuit connect and function etc. well known to a person skilled in the art, further do not repeat herein to it.
Fig. 7 is the perspective schematic view of the transformer pup joint 150 of logging instrument 10.Transformer pup joint 150 is arranged in tool housing 110 adjacent to power module pipe nipple 140.The general structure, circuit connection, basic function etc. of transformer pup joint also well known to a person skilled in the art, further do not repeat herein to this.At this, it should be noted that the structure of the present invention to transformer pup joint lower end has done special improvement.
See Fig. 8, in a preferred embodiment of the invention, spring base 151 and transformer lower contact 154 are preferably equipped with in the lower end of transformer pup joint 150.Axial compression spring 152 is provided with between spring base 151 and transformer lower contact 154.Spring base 151 has the center outrigger shaft 153 to downward-extension.Axial compression spring 152 is arranged around center outrigger shaft 153.Between center outrigger shaft 153 and the interior diapire of transformer lower contact 154 at least axial compression spring 152 in the raw time there is spacing.The axially extended sidewall of transformer lower contact 154 has two diametrically, axially extended chutes 155, it is circular that it is preferably square.Transformer lower contact 154 is connected to the end section of the center outrigger shaft 153 of spring base 151 slidably by the spiral shell volume pin 157 extending radially through chute 155, thus allows spring base 151 and in axial direction carry out relative position between transformer lower contact 154 and slide.Like this, go into the well in process at logging instrument 10, just can Compress Spring 152 when being assembled into overall instrument mandrel high-temperature expansion, between spring base 151 with transformer lower contact 154, occur sliding in relative position, thus whole instrument mandrel can be avoided to be heated elongated, the crimp force between instrument top connection 120 and instrument mandrel can not be caused too large, occur dismantling the difficulty even problem of deformed damaged.In addition, initial loading timing, is preferably arranged to have certain pre compressed magnitude by spring 152, and this can play certain locking effect to instrument top connection 120.
In a preferred embodiment, the lateral wall of transformer lower contact 154 is provided with axially extended positioning key 156, and the inner hole wall of instrument lower contact 160 is provided with the positioning spline 162(that can coordinate with this positioning key 156 see Fig. 5).In this embodiment, when the instrument mandrel of entirety is fitted into tool housing 110, this positioning key 156 in transformer lower contact 154 is inserted in the positioning spline 162 of instrument lower contact 160, thus circumference is rotated can to prevent instrument mandrel from occurring in tool housing 110.
In addition, as shown in Figure 1, logging instrument 10 also can comprise two helmets 170, and (be such as threaded connection or connected mode that other is suitable) protects in instrument top connection 120 and instrument lower contact 160 so that (such as in transportation or when depositing) is removably set with respectively when logging instrument 10 not operation.Helmet 170 can provide suitable hoisting ring so that the carrying of logging instrument 10 or lifting.
So far, those skilled in the art will recognize that, although at large illustrate and describe multiple exemplary preferred embodiment herein, but, without departing from the spirit and scope of the present invention, still can directly determine or derive other modification many or amendment of meeting the principle of the invention according to content disclosed in the present application.Therefore, scope of the present invention should be understood and regard as and cover all these other modification or amendments.
Claims (9)
1., for a logging instrument for Oil/gas Well detection, it is characterized in that comprising:
Tool housing, it in axial direction has first end and second end of opening;
Instrument top connection, it is connected to the first end of described tool housing gas-tight seally, and is wherein provided with the first multicore electrical connector;
Vacuum flask pipe nipple, the electronic cartridge of described logging instrument is arranged in the insulation bottle cover of described vacuum flask pipe nipple, and is at least electrically connected with the first multicore electrical connector in described instrument top connection;
Power module pipe nipple;
Transformer pup joint; With
Instrument lower contact, it is connected to the second end of described tool housing gas-tight seally,
Wherein, described vacuum flask pipe nipple, described power module pipe nipple, described transformer pup joint successively from top to down be arranged in series in described tool housing.
2. logging instrument according to claim 1, is characterized in that,
The adjacent end portion of described vacuum flask pipe nipple, described power module pipe nipple, described transformer pup joint is socketed successively and is fixed together the overall instrument mandrel of formation one by radial screw.
3. logging instrument according to claim 2, is characterized in that,
Described instrument lower contact to be screwed with described tool housing by screw thread and is connected; And
Described instrument top connection to be screwed with described tool housing by screw thread and is connected, and a part for described instrument top connection stretches in described tool housing, compresses residence and states instrument mandrel.
4. logging instrument according to claim 1, is characterized in that,
Be provided with an overall vacuum flask pipe nipple mandrel in described insulation bottle cover, described vacuum flask pipe nipple mandrel comprises the heat insulation spring together that is permanently connected successively, upper absorber, electronic cartridge, multi-pin connector, multi-core socket and lower absorber;
The lower end of described vacuum flask pipe nipple mandrel is tightened in described insulation bottle cover by the external screw thread on described lower absorber; And
The upper end of described insulation bottle cover is by screw thread end cap termination, and a part for described screw thread end cap stretches in described insulation bottle cover, compresses residence and states vacuum flask pipe nipple mandrel.
5. logging instrument according to claim 1, is characterized in that,
Spring base and transformer lower contact are equipped with in the lower end of described transformer pup joint, are provided with axial compression spring between described spring base and described transformer lower contact.
6. logging instrument according to claim 5, is characterized in that,
Described spring base has the center outrigger shaft to downward-extension;
Described axial compression spring is arranged around described center outrigger shaft; And
Between the interior diapire of described center outrigger shaft and described transformer lower contact at least described axial compression spring in the raw time there is spacing.
7. logging instrument according to claim 6, is characterized in that,
The axially extended sidewall of described transformer lower contact has two diametrically, axially extended chutes; And
Described transformer lower contact is connected to the end section of the center outrigger shaft of described spring base slidably by the spiral shell volume pin extending radially through described chute.
8. logging instrument according to claim 7, is characterized in that,
The lateral wall of described transformer lower contact is provided with axially extended positioning key;
The inner hole wall of described instrument lower contact is provided with positioning spline; And
Positioning key in described transformer lower contact matches with the positioning spline in described instrument lower contact.
9. logging instrument according to claim 1, is characterized in that,
The second multicore electrical connector is provided with in described instrument lower contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310399148.2A CN104420863A (en) | 2013-09-05 | 2013-09-05 | Modified mechanical structure logging instrument suitable for detection of high-temperature high-pressure slim-hole oil and gas wells |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310399148.2A CN104420863A (en) | 2013-09-05 | 2013-09-05 | Modified mechanical structure logging instrument suitable for detection of high-temperature high-pressure slim-hole oil and gas wells |
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| CN104420863A true CN104420863A (en) | 2015-03-18 |
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| CN201310399148.2A Pending CN104420863A (en) | 2013-09-05 | 2013-09-05 | Modified mechanical structure logging instrument suitable for detection of high-temperature high-pressure slim-hole oil and gas wells |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110984958A (en) * | 2019-12-12 | 2020-04-10 | 商丘睿控仪器仪表有限公司 | Small-size drilling engineering monitored control system |
| CN112211615A (en) * | 2020-11-18 | 2021-01-12 | 大庆科力远石油装备制造有限公司 | High-temperature through-core electromagnetic flow logging instrument |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112211615A (en) * | 2020-11-18 | 2021-01-12 | 大庆科力远石油装备制造有限公司 | High-temperature through-core electromagnetic flow logging instrument |
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