CN110761772B - Be applied to oil pipe and carry online horizontal well and produce liquid section logging system - Google Patents
Be applied to oil pipe and carry online horizontal well and produce liquid section logging system Download PDFInfo
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- CN110761772B CN110761772B CN201910997147.5A CN201910997147A CN110761772B CN 110761772 B CN110761772 B CN 110761772B CN 201910997147 A CN201910997147 A CN 201910997147A CN 110761772 B CN110761772 B CN 110761772B
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- 239000007788 liquid Substances 0.000 title abstract description 8
- 238000007789 sealing Methods 0.000 claims abstract description 41
- 238000004519 manufacturing process Methods 0.000 claims abstract description 20
- 230000001012 protector Effects 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000012530 fluid Substances 0.000 claims abstract description 11
- 239000011229 interlayer Substances 0.000 claims abstract description 7
- 238000006243 chemical reaction Methods 0.000 claims abstract description 5
- 238000003860 storage Methods 0.000 claims description 51
- 229910000831 Steel Inorganic materials 0.000 claims description 34
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- 238000005259 measurement Methods 0.000 abstract description 6
- 238000010276 construction Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 4
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- 230000005484 gravity Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
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- Environmental & Geological Engineering (AREA)
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- General Life Sciences & Earth Sciences (AREA)
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Abstract
The invention relates to the technical field of logging, in particular to a logging system for a production fluid profile of an oil pipe conveying online horizontal well. The system comprises a logging module, a cable fisher, a cable bypass device, a cable protector and a wellhead sealing device special for a horizontal well; the logging module is conveyed underground along with the oil pipe and positioned on each well section interlayer to be tested; the bottom end of the oil pipe pump is connected with the sieve tube, and the bottom end of the sieve tube is connected with the cable bypass device; the cable bypass device realizes the conversion of cables inside and outside the oil pipe, and the logging combination instrument uploads the acquired water content data to the ground controller; the ground controller sends a control instruction to a demodulator in the logging combination instrument, and the demodulator decodes the control instruction so as to judge the working condition of the logging module; the construction process is simple, safe and reliable, can realize the recording of multi-core and multi-parameter data, improves the success rate of the horizontal well liquid production profile logging, and has the advantages of safety, reliability, stepless number limitation, online measurement, high test precision and the like.
Description
Technical Field
The invention relates to the technical field of logging, in particular to a logging system for a production fluid profile of an oil pipe conveying online horizontal well.
Background
The current horizontal well logging process mainly comprises six methods:
(1) A coiled tubing conveying cable logging process;
(2) An electronic traction instrument conveying cable logging process;
(3) A gravity method conveying cable logging process;
(4) A hydraulic conveying method logging process;
(5) An oil pipe conveying cable logging process;
(6) Tubing conveyed storage logging process.
The oil pipe conveying cable logging process mainly comprises a wet joint type oil pipe conveying cable logging process and a protective basket type oil pipe conveying cable logging process, wherein the wet joint type oil pipe conveying cable logging process has the problems of wet joint butt joint, insulation and the like, and the protective basket type oil pipe conveying cable logging process is mainly used for casing logging. The continuous oil pipe conveying cable logging technology has the advantages of wide adaptability to logging instruments of different sizes, and can perform casing well, annular space and through oil pipe logging. Compared with the oil pipe conveying mode, the wet joint is not needed, and the defect that the cable is easy to accumulate and be extruded out in the oil sleeve annular space in the process of lowering the oil pipe is overcome. According to the gravity method conveying cable logging process, cables with certain lengths are arranged in light glass fiber reinforced plastic flexible rods to form flexible rod-cable assemblies, quick connectors are additionally arranged at two ends of the flexible rod-cable assemblies, then a plurality of sections of flexible rod-cable assemblies and a steel armor-mounted weighting rod outside the cables are prepared according to actual conditions, a winch can be operated according to a conventional logging operation mode, the cables are lifted and lowered for testing, and the cable logging process is generally only used for casing logging with a horizontal section of hundreds of meters, is not suitable for long well section horizontal wells, and the length of the current horizontal well section is more than one kilometer; the horizontal well hydraulic conveying method is to push the logging instrument into the end of the horizontal section by hydraulic pushing force, and the horizontal well hydraulic conveying method can only be used for non-contact logging projects such as stratum parameters, oxygen activation and the like, is complex in process when used for producing well liquid profile test, and the logging instrument can only be pulled in one direction from the end of the horizontal section to a wellhead, and is easy to pollute an oil layer and short in conveying distance. The underground traction instrument conveying cable well logging technology is a main technology of foreign liquid profile well logging, mainly uses non-flow-collecting and continuous measurement, and is suitable for high-yield and self-injection horizontal wells. The tractor is used for driving the instrument to go into the well, but the traditional tractor has poor obstacle crossing capability, so that the success rate of logging the production profile of the horizontal well is low. The pipe column conveying storage type production profile logging is carried out in a pipe column conveying mode, a downhole packer, a matched tool and a storage type testing instrument are arranged in a testing layer section in advance, each production layer is plugged by adopting a mechanical packer, the flow meter of each module measures and stores parameters such as sectional flow, pressure and well temperature, and the sectional flow can be determined by replaying data after the pipe column is taken out. At present, the number of the stage 4 and the stage 5 is not more than the premise of ensuring the tripping safety, and the requirement of the horizontal well section flow logging with more perforating stages is not met.
Disclosure of Invention
First, the technical problem to be solved
The invention provides an on-line horizontal well production fluid profile logging system applied to oil pipe conveying, which is used for overcoming the defects that the logging technology in the prior art is easy to cause oil layer pollution, short in conveying distance, low in success rate of logging of the horizontal well production profile and the like.
(II) technical scheme
To solve the above problems, the present invention is applied to an oil pipe conveying on-line horizontal well production fluid profile logging system, comprising: the well logging device comprises a well logging module, a cable fisher, a cable bypass device, a cable protector and a wellhead sealing device special for a horizontal well;
The logging module is arranged on the oil pipe, is conveyed underground along with the oil pipe, is positioned on each well section interlayer to be tested and is positioned between two adjacent perforation layers; a certain number of cables are pre-stored on the logging modules, and the cable connection among the logging modules is realized through an in-pipe cable overshot;
The bottom end of the oil pipe pump is connected with a screen pipe, and the bottom end of the screen pipe is connected with a cable bypass device; the cable bypass device realizes the conversion of cables inside and outside the oil pipe, the cable positioned in the horizontal well Duan Ju inside the cable bypass device is a common cable, the cable positioned in the straight well section and outside the cable bypass device is a steel armor cable, and each oil pipe joint hoop adopts a cable protector to protect the steel armor cable; communicating with ground equipment through steel armoured cables;
the wellhead is provided with a wellhead sealing device special for the horizontal well for sealing;
The logging combination instrument comprises a flowmeter, an overcurrent capacitance water meter and an impedance water meter; uploading the acquired water content data to a ground controller by the logging combination instrument;
the ground controller sends a control instruction to a demodulator in the logging combination instrument, and the demodulator decodes the control instruction so as to judge the working condition of the logging module;
the logging module comprises a line storage device, a logging combination instrument and a current collector which are sequentially connected from top to bottom.
Preferably, the wire storage device includes: the wire storage cylinder is internally provided with cables which are orderly arranged according to a certain rule;
One end of the wire storage barrel is connected with the upper wire storage device connector, the other end of the wire storage barrel is connected with the lower wire storage device connector, and the upper wire storage device connector comprises: the conical head sequentially passes through the slip ring, the slip ring sealing head, the sealing short circuit and the sealing plug, and plays a role in righting and fixing through the compression ring;
The lower connector of the wire storage device comprises a sealing plug short circuit, a contact and a protective cap to complete connection, the lower connector of the wire storage device is fixed on the chassis, the lower connector of the wire storage device is of a movable structure and can be pulled out from the end part of the wire storage device, so that the wire storage device and the combined logging instrument can be detachably connected.
Preferably, the cable latch jack comprises a basket, a spring, bluetooth and a guide shoe;
The cable fisher is connected with the steel armoured cable, the guide shoe guides the conical head to the Bluetooth, the conical head pushes away the Bluetooth and enters the basket, the Bluetooth returns to the original position under the action of the spring, the Bluetooth locks the conical fisher head, after the conical head is successfully fished, the logging steel armoured cable is lifted up to the wellhead, the conical head is disassembled, the upper connector of the wire storage device connected with the conical head is connected with the bottom of the current collector of the other module, and the electric connection of the two modules is realized.
Preferably, the cable bypass device comprises a shell, a limit screw, a limit block, a sealing plug and a contact outer barrel.
Preferably, the cable protector is used for fixing and protecting steel armoured cables, the upper part and the lower part of the cable protector are respectively provided with a clamp with openings capable of wrapping an oil pipe, and the clamp is provided with rubber grooves matched with the diameter of the cables.
Preferably, the special wellhead sealing device for the horizontal well comprises an oil pipe short circuit, a rubber block, a columnar rubber, a cable sealing rubber ring, a fixing screw and a rubber ring pressing block, wherein the rubber block and the columnar rubber are connected together to form a semi-opening shape, a steel armor cable is arranged in the columnar rubber, the rubber block is sealed through the cable sealing rubber ring, and the sealing fixing is carried out through a limit screw and the rubber ring pressing block.
Preferably, the logging module is connected with the oil pipe through an oil pipe buckle.
(III) beneficial effects
The invention is applied to the oil pipe conveying on-line type horizontal well liquid production profile logging system, has simple, safe and reliable construction process, can realize the logging of multi-core and multi-parameter data, improves the success rate of the horizontal well liquid production profile logging, has the advantages of safety, reliability, stepless number limitation, on-line measurement, high test precision and the like, and has wide application prospect.
Drawings
FIG. 1 is a schematic diagram of a logging system for on-line horizontal well production fluid profile for tubing transportation according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a logging module according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a wire accumulator in an embodiment of the present invention;
FIG. 4 is a cross-sectional view of a cable latch according to an embodiment of the present invention;
FIG. 5 is a cross-sectional view of a cable bypass in an embodiment of the present invention;
FIG. 6 is a schematic view of a cable protector according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of a wellhead sealing device special for a horizontal well according to an embodiment of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and examples.
As shown in fig. 1-7, an embodiment of the present invention provides a logging system for on-line production fluid profile of a horizontal well for tubing transportation, comprising:
The well logging device comprises a well logging module 1, a cable fisher, a cable bypass device, a cable protector 4 and a wellhead sealing device 5 special for a horizontal well;
The logging module 1 is arranged on an oil pipe 11, is conveyed underground along with the oil pipe 11, is positioned on each well section interlayer to be tested and is positioned between two adjacent perforation layers 6; a certain number of cables are pre-stored on the logging modules 1, and the cable connection among the logging modules 1 is realized through an in-pipe cable fishing device;
The bottom end of the oil pipe pump is connected with the sieve 8, and the bottom end of the sieve tube 8 is connected with the cable bypass device 3; the cable bypass device 3 realizes the conversion of cables inside and outside the oil pipe, the cable positioned in the horizontal well Duan Ju inside the cable bypass device is a common cable 7, the cable positioned in the straight well section and outside the cable bypass device is a steel armoured cable 10, and each oil pipe section hoop adopts a cable protector to protect the steel armoured cable 10; communicating with ground equipment through steel armoured cable 10;
The wellhead is provided with a wellhead sealing device 5 special for the horizontal well for sealing;
The logging combination instrument comprises a flowmeter, an overcurrent capacitance water meter and an impedance water meter; uploading the acquired water content data to a ground controller by the logging combination instrument;
the ground controller sends a control instruction to a demodulator in the logging combination instrument, and the demodulator decodes the control instruction so as to judge the working condition of the logging module;
the logging module comprises a wire storage device 1-1, a logging combination instrument 1-3 and a current collector 1-5 which are sequentially connected from top to bottom.
The well logging module 1 is conveyed by the oil pipe 11, the conical heads 1-6 of the well logging module are thrown and fished through the cable fisher, the conical heads 1-6 are removed after throwing and fished successfully and are connected with the bottom of the other well logging module, connection between the two modules is achieved, the well logging module 1 is positioned between interlayers of the two perforation layers 6, the lower part of the pump 9 is connected with the screen pipe 8, the lower part of the screen pipe 8 is connected with the cable bypass (as shown in figure 5), the cable bypass realizes the conversion of cables inside and outside the oil pipe, the cable bypass is internally provided with a common cable 7, the outside is provided with a steel armoured cable 10, each oil pipe collar is provided with a cable protector 4 for protecting the steel armoured cable 10, a wellhead special wellhead sealing device structure 5 is arranged at a wellhead, production is restored, after the yield is stable, the current collector is powered on, the current collector is closed by the glue skin of the current collector tightly clings to the sleeve 12, the space between the instrument and the inside of the sleeve is closed after the current collector, all well flows through a measuring channel inside the instrument, the flow speed is improved, the mixing of the flow and the oil and the water are accelerated, and the well logging precision is improved.
As shown in fig. 2, the logging module 1 is a standard tubing buckle, and can be connected with a tubing, and comprises a wire storage device 1-1, a combined logging instrument 1-3, a protection barrel 1-4 and a current collector 1-5 of the combined logging instrument 1-3, wherein the combined logging instrument 1-3 comprises flow and water content measurement, and the water content is an overcurrent capacitor water meter and an impedance water meter. The method comprises the steps of sending an instruction to a demodulator of an instrument through the ground, decoding by the demodulator, judging a logging module which works specifically, and uploading data to the ground by a combiner of the logging module, so that the measurement of flow water content is realized.
As shown in fig. 3, a certain number of cables are pre-stored in a cable storage device 1-1 for electrical connection between logging modules, the cable storage device comprises a cable storage barrel 1-13, and the cable storage barrel 1-13 is internally provided with cables 1-12 which are orderly arranged according to a certain rule; the outer diameter of the wire storage cylinder 1-13 is 73mm, and the inner diameter is 62mm.
One end of each wire storage barrel 1-13 is connected with an upper wire storage connector, the other end of each wire storage barrel is connected with a lower wire storage connector, and the upper wire storage connector comprises: the conical head 1-6, the conical head loops through sliding ring 1-7, sliding ring sealing head 1-8, sealed short circuit 1-9, clamping ring 1-10, sealing plug 1-11, plays righting and fixed effect through clamping ring 1-10 connector under the line ware includes sealing plug short circuit 1-15, contact 1-16, protection cap 1-17 and accomplishes the connection, connector under the line ware is fixed on chassis 1-14, connector under the line ware is the active structure, can follow the tip pull out of line ware, realizes line ware and combination logging instrument and can dismantle the connection.
As shown in fig. 4, the cable fisher consists of four parts of a basket 2-1, a spring 2-2, bluetooth 2-3 and a guide shoe 2-4, and the working principle of the cable fisher is as follows: the logging steel armour cable is connected with the cable fisher, the cable fisher is arranged under the logging steel armour cable and is sunk, the guide shoe 2-4 guides the conical head 1-6 to the Bluetooth 2-3, the conical head 1-6 pushes away the Bluetooth 2-3 to enter the basket 2-1, the Bluetooth 2-3 returns to the original position under the action of the spring 2-2, the Bluetooth 2-3 locks the conical head 1-6, after the conical head 1-6 is successfully fished, the logging steel armour cable is lifted to a wellhead, the conical head is disassembled, and the upper connector of the wire storage device connected with the conical head is connected with the bottom of the current collector of the other module, so that the electric connection of the two modules is realized.
As shown in fig. 5, the cable bypass mainly comprises a shell 3-1, a limit screw 3-2, a limit block 3-3, a sealing plug 3-4 and a contact outer cylinder 3-5, wherein the bypass is arranged at two oil pipes below the pump, and a steel armoured cable is arranged above the bypass, so that the high-efficiency connection of the oil pipes at the straight well section is facilitated. The limiting screw 3-2 is unscrewed firstly, the limiting block 3-3 is taken out, a cable without steel armor is arranged below the bypass device, the cable is converted into an oil pipe and connected with each instrument module, and the cable has high safety in the oil pipe, so that the connection mode has high reliability.
As shown in FIG. 6, at the coupling position 4-2 of the oil pipe 4-1, the cable protector 4-4 is used for fixing and protecting the steel armoured cable 4-3, the upper and lower parts of the cable protector 4-4 are respectively provided with a clamp with openings capable of holding the oil pipe 4-1, the clamp is provided with a rubber groove with the right cable diameter, the cable 4-3 is put into the protector 4-4 to be positioned at the rubber position up and down, and then the two clamps of the cable protector 4-4 are buckled, so that the steel armoured cable 4-3 can be protected and fixed, and the steel armoured cable 4-3 is prevented from being accumulated in the annular space of the oil sleeve when the oil pipe is lowered and is crushed by the oil pipe, thereby affecting the electrical performance of the cable.
As shown in figure 7, the special wellhead sealing device for the horizontal well is an oil pipe buckle capable of being connected with an oil pipe, and comprises an oil pipe short joint 5-1, a rubber block 5-2, a columnar rubber 5-3, a cable sealing rubber ring 5-5, a fixing screw 5-6 and a rubber ring pressing block 5-7, wherein the rubber block 5-2 and the columnar rubber 5-3 are connected together to form a semi-open shape, the fixing screw 5-6 is unscrewed first, the wellhead sealing device for the horizontal well is in an open state, after a downhole tubular column is lifted, the wellhead sealing device for the horizontal well is connected with the downhole oil pipe, a steel armor cable is placed in the columnar rubber 5-3, the cable sealing rubber ring 5-5 is installed, the rubber block 5-2 is closed, the fixing screw 5-6 is installed, and then the rubber ring pressing block 5-7 is installed.
The implementation process of the horizontal well oil pipe conveying modularized combined online production liquid profile logging process is briefly described as follows:
The installation process of the logging module comprises the following steps: firstly, pre-storing a certain number of cables 7 in a wire storage device according to the length of an interlayer between two perforation layers 6, installing an upper connector and a lower connector at two ends of the wire storage device 1-1, wherein the upper part of the upper connector is connected with a conical head 1-6, and the lower connector of the wire storage device is a movable short circuit; then the head of the electric extrusion rubber current collector 1-4 is connected with the bottom of the logging combination instrument 1-3, the protection barrel 1-4 of the logging combination instrument 1-3 is assembled from the head of the logging combination instrument and connected with the current collector 1-5 by screw threads, and the head is connected with the bottom of the wire storage device by screw threads; the lower connector of the wire storage device can be connected with the logging combination instrument 1-3 by unscrewing the compression ring of the wire storage device connector 1-2;
The cable casting and fishing process in the pipe comprises the following steps: the oil pipe carries logging module 1 and oil pipe, design two modules into the distance between two intermediate layers, after the length of oil pipe is the distance between two intermediate layers down, link to each other with cable fisher after hanging two with logging winch through logging cable, lower discharging cable throws and drags, after throwing and drags successfully, take off the cable to cable fisher and get the well head, dismantle the conical head 1-6 that salvages, power supply logging module 1 in the ground, after logging module work is normal, connect the last connector of this module and the bottom of 2 nd module, realized once complete salvaging promptly. If the distance between the two interlayers is too far, a single line storage device 1-1 can be added between the two modules, the logging modules are sequentially fished and lowered according to the requirement of the layer section, and each next module needs to supply power to all logging modules to see whether the work is normal or not.
After all logging modules 1 are lowered, the last logging module 1 is fished by a cable fisher, a cable bypass is lowered, a limit screw 3-2 of the cable bypass is screwed off, a limit block 3-3 is taken out, an upper connector of the fished logging module 1 is connected with a contact outer cylinder 3-5, a steel armoured cable head is connected with a sealing plug 3-4, the limit block 3-3 is installed, and a limit screw 3-2 is installed, so that the limit block 3-3 is fixed on the cable bypass.
The cable bypass device is sequentially connected with the sieve tube 8 and the pump 9, the steel armour cables are synchronously arranged when the oil tube is arranged, and the steel armour cables 10 are fixed on each oil tube joint hoop by using the cable protector. And (3) installing a special wellhead sealing device for the horizontal well at the wellhead, and gating a logging module 1 which specifically works on the ground after the horizontal well is stable, so as to measure parameters such as flow, water content and the like. After the qualified logging information is recorded, an oil outlet pipe is started, and the logging steel armour cable, the logging module 1 and matched equipment are recovered.
According to the online test system for the output profile of the horizontal well, the steel armoured cable is used as transmission in the vertical well section, the common cable is used for connecting logging instruments of all production layers in the horizontal well section, the logging instruments are transmitted to the target depth through the oil pipe, the defect that the instruments cannot reach the target depth due to poor barrier crossing capability of the tractor is overcome, the cable is not scratched in the oil pipe in the horizontal well section, the safety is improved, and online accurate measurement of the flow of all production layers of the horizontal well can be realized by matching with the tubular electric extrusion rubber current collector.
The above embodiments are only for illustrating the present invention, not for limiting the present invention, and various changes and modifications may be made by one of ordinary skill in the relevant art without departing from the spirit and scope of the present invention, and therefore, all equivalent technical solutions are also within the scope of the present invention, and the scope of the present invention is defined by the claims.
Claims (5)
1. A fluid profile logging system for use in an oil pipe conveyed on-line horizontal well, comprising: the well logging device comprises a well logging module, a cable fisher, a cable bypass device, a cable protector and a wellhead sealing device special for a horizontal well;
The logging module is arranged on the oil pipe, is conveyed underground along with the oil pipe, is positioned on each well section interlayer to be tested and is positioned between two adjacent perforation layers; a certain number of cables are pre-stored on the logging modules, and cable connection among the logging modules is realized through an in-pipe cable fisher;
The bottom end of the oil pipe pump is connected with a screen pipe, and the bottom end of the screen pipe is connected with a cable bypass device; the cable bypass device realizes the conversion of cables inside and outside the oil pipe, the cable positioned in the horizontal well Duan Ju inside the cable bypass device is a common cable, the cable positioned in the straight well section and outside the cable bypass device is a steel armor cable, and each oil pipe joint hoop adopts a cable protector to protect the steel armor cable; communicating with ground equipment through steel armoured cables;
the wellhead is provided with a wellhead sealing device special for the horizontal well for sealing;
The logging combination instrument comprises a flowmeter, an overcurrent capacitance water meter and an impedance water meter; uploading the acquired water content data to a ground controller by the logging combination instrument;
the ground controller sends a control instruction to a demodulator in the logging combination instrument, and the demodulator decodes the control instruction so as to judge the working condition of the logging module;
the logging module comprises a line storage device, a logging combination instrument and a current collector which are sequentially connected from top to bottom;
the wire storage device comprises: the wire storage cylinder is internally provided with cables which are orderly arranged according to a certain rule;
One end of the wire storage barrel is connected with the upper wire storage device connector, the other end of the wire storage barrel is connected with the lower wire storage device connector, and the upper wire storage device connector comprises: the conical head sequentially passes through the slip ring, the slip ring sealing head, the sealing short circuit, the compression ring and the sealing plug, and plays a role in righting and fixing through the compression ring;
The lower connector of the wire storage device comprises a sealing plug short circuit, a contact and a protective cap, the lower connector of the wire storage device is fixed on the chassis, and the lower connector of the wire storage device is of a movable structure and can be pulled out from the end part of the wire storage device so as to realize detachable connection of the wire storage device and the combined logging instrument;
the logging module is connected with an oil pipe through an oil pipe buckle.
2. The on-line horizontal well production fluid profile logging system for tubing transportation of claim 1, wherein said cable fisher comprises a basket, a spring, bluetooth, and a shoe;
The cable fisher is connected with the steel armoured cable, the guide shoe guides the conical head to the Bluetooth, the conical head pushes away the Bluetooth to enter the basket, the Bluetooth returns to the original position under the action of the spring, the Bluetooth locks the conical head, after the conical head is successfully salvaged, the steel armoured cable is lifted up to the wellhead, the conical head is disassembled, the upper connector of the wire storage device connected with the conical head is connected with the bottom of the current collector of the other logging module, and the electric connection of the two modules is realized.
3. The on-line horizontal well fluid profile logging system for tubing transportation of claim 1, wherein the cable bypass comprises a housing, a stop screw, a stop block, a sealing plug, and a contact outer barrel.
4. The on-line horizontal well production fluid profile logging system for oil pipe conveying according to claim 1, wherein the cable protector is used for fixedly protecting steel armoured cables, the upper and lower parts of the cable protector are respectively provided with a clamp with openings capable of wrapping the oil pipe, and the clamp is provided with rubber grooves matched with the diameters of the cables.
5. The on-line horizontal well production fluid profile logging system for oil pipe conveying according to claim 1, wherein the special wellhead sealing device for the horizontal well comprises an oil pipe short joint, a rubber block, a columnar rubber, a cable sealing rubber ring, a fixing screw and a rubber ring pressing block, wherein the rubber block and the columnar rubber are connected together to form a semi-opening shape, a steel sheathed cable is arranged in the columnar rubber, the cable sealing rubber block is used for sealing and fixing through the fixing screw and the rubber ring pressing block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910997147.5A CN110761772B (en) | 2019-10-20 | 2019-10-20 | Be applied to oil pipe and carry online horizontal well and produce liquid section logging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910997147.5A CN110761772B (en) | 2019-10-20 | 2019-10-20 | Be applied to oil pipe and carry online horizontal well and produce liquid section logging system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
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| CN112282737A (en) * | 2020-11-04 | 2021-01-29 | 中国石油天然气股份有限公司 | Low-liquid-volume horizontal well liquid production profile testing device and method |
| CN113356803B (en) * | 2021-07-26 | 2023-03-31 | 东营市瑞丰石油技术发展有限责任公司 | Cable passes through bypass screen pipe subassembly |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2009113894A1 (en) * | 2008-02-27 | 2009-09-17 | Schlumberger Canada Limited | Logging system for use below electric submersible pumps |
| CN105041294A (en) * | 2015-06-23 | 2015-11-11 | 中国石油集团渤海钻探工程有限公司 | Conveying and storing type produced fluid profile testing technique for coiled tube of horizontal well |
| CN206220950U (en) * | 2016-10-28 | 2017-06-06 | 中国石油天然气股份有限公司 | Afflux drawing type producing profile testing tubing string in a kind of oil pipe of horizontal well |
| CN211314188U (en) * | 2019-10-20 | 2020-08-21 | 大庆油田有限责任公司 | Online horizontal well liquid production profile logging system applied to oil pipe conveying |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009113894A1 (en) * | 2008-02-27 | 2009-09-17 | Schlumberger Canada Limited | Logging system for use below electric submersible pumps |
| CN105041294A (en) * | 2015-06-23 | 2015-11-11 | 中国石油集团渤海钻探工程有限公司 | Conveying and storing type produced fluid profile testing technique for coiled tube of horizontal well |
| CN206220950U (en) * | 2016-10-28 | 2017-06-06 | 中国石油天然气股份有限公司 | Afflux drawing type producing profile testing tubing string in a kind of oil pipe of horizontal well |
| CN211314188U (en) * | 2019-10-20 | 2020-08-21 | 大庆油田有限责任公司 | Online horizontal well liquid production profile logging system applied to oil pipe conveying |
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