CN110761772A - Online horizontal well liquid production profile logging system applied to oil pipe conveying - Google Patents
Online horizontal well liquid production profile logging system applied to oil pipe conveying Download PDFInfo
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- CN110761772A CN110761772A CN201910997147.5A CN201910997147A CN110761772A CN 110761772 A CN110761772 A CN 110761772A CN 201910997147 A CN201910997147 A CN 201910997147A CN 110761772 A CN110761772 A CN 110761772A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 26
- 239000007788 liquid Substances 0.000 title claims abstract description 11
- 238000007789 sealing Methods 0.000 claims abstract description 36
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- 230000001012 protector Effects 0.000 claims abstract description 18
- 239000011229 interlayer Substances 0.000 claims abstract description 7
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- 238000012360 testing method Methods 0.000 abstract description 7
- 238000005259 measurement Methods 0.000 abstract description 6
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- 239000012530 fluid Substances 0.000 description 4
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
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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
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Abstract
The invention relates to the technical field of well logging, in particular to an online horizontal well liquid production profile logging system applied to oil pipe conveying. The system comprises a logging module, a cable fisher, a cable bypass device, a cable protector and a special wellhead sealing device for a horizontal well; the logging module is conveyed to the underground along with an oil pipe and positioned on each well section interlayer to be tested; the bottom end of the oil pipe pump is connected with a sieve pipe, and the bottom end of the sieve pipe is connected with a cable bypass device; the cable bypass device realizes the conversion of a cable inside and outside an oil pipe, and the logging combination instrument uploads the collected water content data to the ground controller; the ground controller sends a control command to a demodulator in the logging combination instrument, and the demodulator decodes the control command 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 well logging, in particular to an online horizontal well liquid production profile logging system applied to oil pipe conveying.
Background
The current horizontal well logging process mainly comprises six methods:
(1) a coiled tubing conveying cable logging process;
(2) an electronic tractor conveying cable logging process;
(3) a gravity method conveying cable well logging process;
(4) a hydraulic conveying method well logging process;
(5) an oil pipe conveying cable logging process;
(6) an oil pipe conveying storage type well logging process.
The oil pipe conveying cable logging process mainly comprises a wet joint type oil pipe conveying cable logging process and a protection basket type oil pipe conveying cable logging process, the wet joint type oil pipe conveying cable logging process has the problems of butt joint and insulation of wet joints, and the protection basket type oil pipe conveying cable logging process is mainly used for casing logging. The technique has the advantages of wide adaptability to logging instruments of different sizes, and can carry out cased well, annular space and oil pipe logging. Compared with an oil pipe conveying mode, the wet joint is not needed, and the defect that the cable is easily accumulated and damaged by extrusion in the lowering process of the oil pipe in the annular space of the oil sleeve is overcome. The gravity method conveying cable well logging process is characterized in that a cable with a certain length is arranged in a light glass fiber reinforced plastic flexible rod to form a flexible rod-cable assembly, quick connectors are additionally arranged at two ends of the flexible rod-cable assembly, then a plurality of sections of flexible rod-cable assemblies and a weighting rod with steel armored outside the cable are prepared according to actual conditions, a winch can be operated according to a conventional well logging operation mode, the cable is pulled out for testing, the cable is generally only used for casing well logging of which the horizontal section is hundreds of meters and is not suitable for a long-section horizontal well, and the length of the existing horizontal well is more than one thousand meters; the horizontal well hydraulic conveying method is that a hydraulic driving force is utilized to push a logging instrument to the tail end of a horizontal section, the horizontal well hydraulic conveying method can only be used for non-contact logging projects such as formation parameters, oxygen activation and the like generally, the process is complex when the horizontal well hydraulic conveying method is used for producing fluid profile testing of a production well, the logging instrument can only be pulled from the tail end of the horizontal section to a well mouth in a one-way mode, the hydraulic conveying method is easy to pollute an oil layer, and the conveying distance is short. The well logging process of the conveying cable of the underground tractor is a main technology of foreign liquid production profile well logging, mainly takes non-flow collection and continuous measurement as main points, and is suitable for high-yield and self-flowing horizontal wells. The tractor is used for driving the instrument to descend the well, but the existing tractor has poor obstacle crossing capability, so that the success rate of logging the output profile of the horizontal well is low. The tubular column conveying storage type output profile logging is characterized in that a downhole packer, a matched tool and a storage type testing instrument are preset in a testing layer section in a tubular column conveying mode, a mechanical packer is adopted to block each production layer, a flowmeter of each module measures and stores parameters such as segmented flow, pressure and well temperature, and the segmented flow can be determined by replaying data after the tubular column is taken out. At present, on the premise of ensuring the safety of tripping, the section number does not exceed 4 levels and 5 sections, and the requirement of horizontal well subsection flow logging of more perforation sections is not met.
Disclosure of Invention
Technical problem to be solved
The invention provides an online horizontal well production profile logging system applied to oil pipe conveying, and aims to overcome the defects that the logging technology in the prior art is easy to cause oil layer pollution, short in conveying distance, low in horizontal well production profile logging success rate and the like.
(II) technical scheme
In order to solve the above problems, the logging system applied to the oil pipe conveying online horizontal well liquid production profile comprises: the device comprises a logging module, a cable fisher, a cable bypass device, a cable protector and a special wellhead sealing device for a horizontal well;
the logging module is arranged on an oil pipe, is conveyed to the underground along with the oil pipe, is positioned on each well section interlayer to be tested and is positioned between two adjacent perforating layers; a certain number of cables are prestored on the logging modules, and the cables are connected among the logging modules through the in-pipe cable throwing and fishing device;
the bottom end of the oil pipe pump is connected with a sieve pipe, and the bottom end of the sieve pipe is connected with a cable bypass device; the cable bypass device realizes the conversion of a cable inside and outside an oil pipe, the cable positioned in the horizontal well section and inside the cable bypass device is a common cable, the cable positioned in the vertical well section and outside the cable bypass device is a steel armored cable, and a cable protector is adopted on each oil pipe joint hoop to protect the steel armored cable; communicating with ground equipment through a steel armor cable;
installing a special wellhead sealing device for the horizontal well at the wellhead for sealing;
the logging combination instrument comprises a flowmeter, an overcurrent capacitance water meter and an impedance water meter; the logging combination instrument uploads the collected water content data to a ground controller;
the ground controller sends a control command to a demodulator in the logging combination instrument, and the demodulator decodes the control command so as to judge the working condition of the logging module;
the logging module comprises a wire storage device, a logging combination instrument and a current collector which are sequentially connected from top to bottom.
Preferably, the line storage device includes: the cable storage barrel is internally provided with cables which are orderly arranged according to a certain rule;
deposit a line section of thick bamboo one end and connect and deposit connector on the line ware, the other end is connected and is deposited connector under the line ware, deposit connector on the line ware and include: the conical head sequentially passes through the sliding ring, the sliding ring sealing head, the sealing short joint and the sealing plug and plays a role in righting and fixing through the compression ring;
deposit under the line ware connector and include sealing plug short circuit, contact, helmet and accomplish the connection, deposit under the line ware connector and fix on the chassis, deposit under the line ware connector and be movable structure, can extract from the tip of depositing the line ware, realize depositing the line ware and can dismantle with the combination logging instrument and be connected.
Preferably, the cable fisher comprises a basket, a spring, a Bluetooth and a guide shoe;
the cable fisher is connected with the steel armor cable, the guide shoe guides the conical head to the Bluetooth position, the conical head pushes the Bluetooth to enter the basket, the Bluetooth returns to the original position under the action of the spring, the conical fishing head is locked by the Bluetooth, after the conical head is successfully fished, the logging steel armor cable is lifted to the well head, the conical head is disassembled, the connector is connected with the bottom of the collector of another module on the wire storage device connected with the conical head, and the electrical connection of the two modules is realized.
Preferably, the cable bypass device comprises a shell, a limiting screw, a limiting block, a sealing plug and a contact outer cylinder.
Preferably, the cable protector is used for fixing and protecting a steel armored cable, the upper part and the lower part of the cable protector are respectively provided with a hoop with an opening capable of wrapping an oil pipe, and the hoop is provided with a rubber groove matched with the diameter of the cable.
Preferably, the special wellhead sealing device for the horizontal well comprises an oil pipe short joint, a rubber block, a columnar rubber sheet, a cable sealing rubber ring, a fixing screw and a rubber ring pressing block, wherein the rubber block and the columnar rubber sheet are connected together to form a semi-open shape, the steel armored cable is arranged in the columnar rubber sheet, and is sealed and fixed through the cable sealing rubber ring sealing rubber block and the limiting screw and the rubber ring pressing block.
Preferably, the logging module is connected with the tubing through a tubing buckle.
(III) advantageous effects
The on-line horizontal well liquid production profile logging system applied to oil pipe conveying has the advantages of being simple in construction process, safe, reliable, capable of achieving multi-core and multi-parameter data recording, improving the success rate of horizontal well liquid production profile logging, safe, reliable, free of limit on the number of steps, capable of achieving on-line measurement, high in testing accuracy and the like, and has wide application prospects.
Drawings
FIG. 1 is a schematic structural diagram of an online horizontal well fluid production profile logging system applied to 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 storage device in an embodiment of the present invention;
FIG. 4 is a cross-sectional view of a cable overshot in an embodiment of the invention;
FIG. 5 is a cross-sectional view of a cable bypass according to an embodiment of the present invention;
FIG. 6 is a schematic structural view of a cable protector according to an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a special wellhead closing device for a horizontal well in the embodiment of the invention.
Detailed Description
The present invention will be described in detail below with reference to the drawings and examples.
As shown in fig. 1 to 7, an embodiment of the present invention provides an online horizontal well fluid production profile logging system applied to tubing transportation, including:
the system comprises a logging module 1, a cable fisher, a cable bypass device, a cable protector 4 and a special wellhead closing device 5 for the horizontal well;
the logging module 1 is arranged on an oil pipe 11, is conveyed to the underground along with the oil pipe 11, is positioned on each well section interlayer to be tested and is positioned between two adjacent perforating layers 6; a certain number of cables are prestored on the logging modules 1, and the cables of the logging modules 1 are connected through a cable throwing and fishing device in the pipe;
the bottom end of the oil pipe pump is connected with a sieve 8, and the bottom end of the sieve tube 8 is connected with a cable bypass device 3; the cable bypass device 3 realizes the conversion of a cable inside and outside an oil pipe, the cable positioned in the horizontal well section and inside the cable bypass device is a common cable 7, the cable positioned in the vertical well section and outside the cable bypass device is a steel armored cable 10, and a cable protector is adopted on each oil pipe joint hoop to protect the steel armored cable 10; communicating with ground equipment through a steel armor cable 10;
a special wellhead closing device 5 for the horizontal well is installed at the wellhead for sealing;
the logging combination instrument comprises a flowmeter, an overcurrent capacitance water meter and an impedance water meter; the logging combination instrument uploads the collected water content data to a ground controller;
the ground controller sends a control command to a demodulator in the logging combination instrument, and the demodulator decodes the control command 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.
Conveying a logging module 1 by an oil pipe 11, dragging a conical head 1-6 of the logging module by a cable fisher, detaching the conical head 1-6 after successful dragging, connecting the conical head with the bottom of another logging module to realize the connection between the two modules, positioning the logging module 1 between an interlayer of two perforation layers 6, connecting a sieve pipe 8 under a pump 9, connecting the sieve pipe 8 with a cable bypass (as shown in figure 5), realizing the conversion of the cable inside and outside the oil pipe by the cable bypass, arranging a common cable 7 in the cable bypass, arranging a steel armor cable 10 outside, protecting the steel armor cable 10 by a cable protector 4 on each oil pipe joint hoop, installing a horizontal well head special well head closing device structure 5 on a well head, recovering production, supplying power to a current collector after stable production, opening the current collector to enable the current collector to cling to a sleeve 12, closing the space between an instrument and the interior of the sleeve after current collector, and driving all well fluid to flow through a narrow measuring channel in the instrument, the flow velocity is improved, the mixing with oil and water is accelerated, and the logging precision of the flow and the water content is improved.
As shown in figure 2, the logging module 1 is provided with standard tubing buckles at the upper part and the lower part, can be connected with the tubing, and comprises a wire storage device 1-1, a combined logging tool 1-3, a protection cylinder 1-4 of the combined logging tool 1-3 and a current collector 1-5, wherein the combined logging tool 1-3 comprises flow and water content measurement, and the water content is an overcurrent capacitance water content meter and an impedance water content meter. The instrument is sent to the demodulator through the ground, the demodulator decodes to judge the logging module of specific work, and the combination instrument of the logging module uploads data to the ground, so that the measurement of flow water content is realized.
As shown in fig. 3, a wire storage device 1-1 stores a certain number of cables in advance for electrical connection between logging modules, the wire storage device includes a wire storage barrel 1-13, and cables 1-12 regularly and orderly arranged are stored in the wire storage barrel 1-13; the bobbin 1-13 has an outer diameter of 73mm and an inner diameter of 62 mm.
Deposit a line section of thick bamboo 1-13 one end and connect and deposit line ware on connector, the other end is connected and is deposited line ware under connector, deposit line ware on the connector include: the cone-shaped head 1-6, the cone-shaped head loops through sliding ring 1-7, sliding ring sealing head 1-8, sealing short circuit 1-9, clamping ring 1-10, sealing plug 1-11, plays through clamping ring 1-10 and rights and the fixed action deposit under the line ware connector include sealing plug short circuit 1-15, contact 1-16, protect cap 1-17 and accomplish to connect, deposit under the line ware connector fix on chassis 1-14, deposit under the line ware connector for movable structure, can follow the tip of depositing the line ware and extract, realize depositing the line ware and can dismantle with the combination logging instrument and be connected.
As shown in fig. 4, the cable fisher consists of a basket 2-1, a spring 2-2, a Bluetooth 2-3 and a guide shoe 2-4, and the working principle of the cable fisher is as follows: the logging steel armor cable is connected with a cable fisher, the cable fisher is lowered through the logging steel armor cable, the cable fisher sinks, the guide shoe 2-4 guides the conical head 1-6 to the Bluetooth 2-3 position, the conical head 1-6 pushes 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 armor cable is lifted to a well head, the conical head is disassembled, a connector on a wire storage device connected with the conical head is connected with the bottom of a current collector of another module, and electrical connection of the two modules is achieved.
As shown in figure 5, the cable bypass device mainly comprises a shell 3-1, limiting screws 3-2, limiting blocks 3-3, sealing plugs 3-4 and contact outer cylinders 3-5, the bypass device is installed at two oil pipes below a pump, and steel armored cables are arranged above the bypass device, so that the high-efficiency connection of the oil pipes in a vertical well section is facilitated. Firstly, screwing off the limiting screw 3-2, taking out the limiting block 3-3, switching the cable without the steel armor below the bypass device into the oil pipe, connecting each instrument module, and having higher reliability due to the very high safety of the cable in the oil pipe.
As shown in figure 6, a cable protector 4-4 is used for fixing and protecting a steel armored cable 4-3 at a coupling 4-2 of an oil pipe 4-1, the cable protector 4-4 is provided with clamps with openings capable of holding the oil pipe 4-1 at the upper part and the lower part respectively, rubber grooves with the size being right to the diameter of the cable are arranged on the clamps, the cable 4-3 is placed at the rubber positions of the protector 4-4 at the upper part and the lower part, and then the two clamps of the cable protector 4-4 are buckled, so that the steel armored cable 4-3 can be protected and fixed, and the steel armored cable 4-3 is prevented from being accumulated in an annular space of an oil sleeve and being extruded by the oil pipe when the oil pipe is fed, and the electrical performance of the cable is influenced.
As shown in figure 7, an oil pipe buckle capable of being connected with an oil pipe is arranged above and below a special wellhead sealing device for a horizontal well, and the special wellhead sealing device for the horizontal well is composed of an oil pipe short joint 5-1, a rubber block 5-2, a columnar rubber sheet 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 sheet 5-3 are connected together to form a half-opening shape, the fixing screw 5-6 is unscrewed, the wellhead sealing device for the horizontal well is in an opening state, the underground pipe column is lifted, the wellhead sealing device for the horizontal well is connected with the underground oil pipe, a steel armored cable is placed in the columnar rubber sheet 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 the rubber ring pressing block.
The implementation process of the horizontal well tubing conveying modular combination online liquid production profile well logging process is briefly described as follows:
the installation process of the logging module comprises the following steps: 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, mounting an upper connector and a lower connector at two ends of the wire storage device 1-1, connecting the upper part of the upper connector with a conical head 1-6, and enabling the lower connector of the wire storage device to be 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 cylinder 1-4 of the logging combination instrument 1-3 is arranged on the head of the logging combination instrument and is 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 pressing ring of the wire storage device connector 1-2 is unscrewed, and then the lower connector of the wire storage device can be connected with the logging combination instrument 1-3;
the process of pulling and running the cable in the pipe comprises the following steps: the oil pipe carries logging module 1 and oil pipe, two module designs for the distance between two intermediate layers, after the length of oil pipe is the distance between two intermediate layers down, articulate two through the logging cable with the logging winch and aggravate the back and link to each other with cable fisher, it drags for to transfer the cable, after dragging for successfully, it reaches the well head to pull up the cable fisher, tear down the cone 1-6 who salvages up, supply power for logging module 1 on ground, logging module normal back of working, connect the last connector of this module and the bottom of 2 nd module, one complete salvage has been realized promptly. If the distance between the two interlayers is too far, a single wire storage device 1-1 can be added between the two modules, the logging modules are put in and taken out and put down in sequence according to the requirements of the layer sections, and every next module needs to supply power to all the logging modules to see whether the work is normal or not.
After all the logging modules 1 are placed, a cable fisher is used for salvaging the last logging module 1, the cable fisher is used for placing the cable bypass, limiting screws 3-2 of the cable bypass are unscrewed, limiting blocks 3-3 are taken out, an upper connector of the salvaged logging module 1 is connected with contact outer cylinders 3-5, a steel armored cable head is connected with a sealing plug 3-4, the limiting blocks 3-3 are installed, the limiting screws 3-2 are installed, and the limiting blocks 3-3 are fixed on the cable bypass.
The cable bypass device is sequentially connected with a sieve tube 8 and a pump 9, steel armor cables are synchronously arranged while an oil pipe is arranged, and a cable protector is used for fixing the steel armor cables 10 on each oil pipe joint hoop. And (3) installing a special wellhead closing device for the horizontal well at the wellhead, and gating the logging module 1 which works specifically on the ground after the horizontal well is stable to measure parameters such as flow, water content and the like. And (4) after the qualified logging information is recorded, taking out the oil pipe, and recovering the logging steel-armored cable, the logging module 1 and the matched equipment.
According to the horizontal well output profile online testing system provided by the invention, the steel armor cable is used as transmission at the straight well section, the common cable is used for connecting the logging instrument of each production layer at the horizontal well section, the logging instrument is transmitted to the target depth through the oil pipe, the defect that the instrument cannot reach the target depth due to poor obstacle crossing capability of the tractor is overcome, the cable is not cut and rubbed in the oil pipe at the horizontal well section, the safety is improved, and the online accurate measurement of the flow water content of each production layer of the horizontal well can be realized by matching with the pipe column type electric extrusion rubber collector.
The above embodiments are only for illustrating the invention and are not to be construed as limiting the invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention, therefore, all equivalent technical solutions also belong to the scope of the invention, and the scope of the invention is defined by the claims.
Claims (7)
1. The utility model provides a be applied to online horizontal well production profile logging system of tubing conveyed which characterized in that includes: the device comprises a logging module, a cable fisher, a cable bypass device, a cable protector and a special wellhead sealing device for a horizontal well;
the logging module is arranged on an oil pipe, is conveyed to the underground along with the oil pipe, is positioned on each well section interlayer to be tested and is positioned between two adjacent perforating layers; a certain number of cables are prestored on the logging modules, and the cables are connected among the logging modules through the in-pipe cable throwing and fishing device;
the bottom end of the oil pipe pump is connected with a sieve pipe, and the bottom end of the sieve pipe is connected with a cable bypass device; the cable bypass device realizes the conversion of a cable inside and outside an oil pipe, the cable positioned in the horizontal well section and inside the cable bypass device is a common cable, the cable positioned in the vertical well section and outside the cable bypass device is a steel armored cable, and a cable protector is adopted on each oil pipe joint hoop to protect the steel armored cable; communicating with ground equipment through a steel armor cable;
installing a special wellhead sealing device for the horizontal well at the wellhead for sealing;
the logging combination instrument comprises a flowmeter, an overcurrent capacitance water meter and an impedance water meter; the logging combination instrument uploads the collected water content data to a ground controller;
the ground controller sends a control command to a demodulator in the logging combination instrument, and the demodulator decodes the control command so as to judge the working condition of the logging module;
the logging module comprises a wire storage device, a logging combination instrument and a current collector which are sequentially connected from top to bottom.
2. The system of claim 1 applied to a tubing conveyed online horizontal well production profile logging system, wherein the wire reservoir comprises: the cable storage barrel is internally provided with cables which are orderly arranged according to a certain rule;
deposit a line section of thick bamboo one end and connect and deposit connector on the line ware, the other end is connected and is deposited connector under the line ware, deposit connector on the line ware and include: the conical head sequentially passes through the sliding ring, the sliding ring sealing head, the sealing short joint and the sealing plug and plays a role in righting and fixing through the compression ring;
deposit under the line ware connector and include sealing plug short circuit, contact, helmet and accomplish the connection, deposit under the line ware connector and fix on the chassis, deposit under the line ware connector and be movable structure, can extract from the tip of depositing the line ware, realize depositing the line ware and can dismantle with the combination logging instrument and be connected.
3. The system of claim 1 applied to a tubing conveyed online horizontal well production profile logging system, wherein the cable fisher comprises a basket, a spring, a Bluetooth and a guide shoe;
the cable fisher is connected with the steel armor cable, the guide shoe guides the conical head to the Bluetooth position, the conical head pushes the Bluetooth to enter the basket, the Bluetooth returns to the original position under the action of the spring, the conical fishing head is locked by the Bluetooth, after the conical head is successfully fished, the logging steel armor cable is lifted to the well head, the conical head is disassembled, the connector is connected with the bottom of the collector of another module on the wire storage device connected with the conical head, and the electrical connection of the two modules is realized.
4. The system of claim 1, wherein the cable bypass comprises a housing, a stop screw, a stop block, a sealing plug, and a contact outer cylinder.
5. The logging system applied to the oil pipe conveying online horizontal well production profile is characterized in that the cable protector is used for fixing and protecting a steel armored cable, the upper part and the lower part of the cable protector are respectively provided with a hoop with an opening capable of wrapping an oil pipe, and a rubber groove matched with the diameter of the cable is formed in the hoop.
6. The on-line horizontal well liquid production profile logging system applied to oil pipe conveying is characterized in that the special wellhead closing device for the horizontal well comprises an oil pipe short joint, a rubber block, a cylindrical rubber sheet, a cable sealing rubber ring, a fixing screw and a rubber ring pressing block, the rubber block and the cylindrical rubber sheet are connected together to form a semi-open shape, a steel armored cable is arranged in the cylindrical rubber sheet, the rubber block is sealed through the cable sealing rubber ring, and the steel armored cable is sealed and fixed through the limiting screw and the rubber ring pressing block.
7. The system of claim 1 applied to tubing conveyed online horizontal well production profile logging, wherein the logging module is connected to tubing via a tubing string.
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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Cited By (2)
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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 |
| CN113356803A (en) * | 2021-07-26 | 2021-09-07 | 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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| CN113356803A (en) * | 2021-07-26 | 2021-09-07 | 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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| CN110761772B (en) | 2024-04-23 |
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