grab-and-go device

Abstract

The utility model discloses a device is measured with fishing along with fishing, including quick cone frame, quick cone frame lower extreme connects quick cable card, and the lower extreme of quick cable card is connected in proper order drill string, drilling tool, bypass sub, shearing sub, drill pipe, suspension sub and wet joint assembly, and the lower extreme of wet joint assembly connects fishing barrel, and quick cone frame inside is connected logging cable and passes through quick cable card, drill string, drilling tool, bypass sub, shearing sub, drill pipe, suspension sub and is connected on the upper end of wet joint assembly in proper order downward. The problem of logging data link interruption caused by cable cutting in the fishing process is solved, and the reverse core operation efficiency of existing technology is low.

Description

Technical Field

[0001] This utility model belongs to the field of oil well logging technology, specifically relating to a device for logging and testing as needed. Background Technology

[0002] During cable logging, if the instrument gets stuck midway and cannot be unstuck while the measurement task has not been completed, it is usually retrieved first, then the well is dredged, and the logging task can be continued after the well condition improves. This often requires a lot of processing time, and the risk of encountering obstruction or getting stuck again when going down into the well for measurement again is also present.

[0003] Traditional cable logging operations require a core-piercing retrieval technique when the instrument gets stuck. While this can successfully retrieve the instrument, it necessitates cutting the cable, leading to data interruption. As logging technology becomes more sophisticated, the demands for data integrity in high-value logging projects have spurred the evolution of on-demand logging techniques. This technology, through a closed-loop design of retrieval-communication recovery-continuous measurement, achieves a leap from a single retrieval function to continuous logging operations, becoming a key technology for ensuring reservoir evaluation accuracy under complex well conditions.

[0004] Chinese patent publication number CN115370302B, published on April 14, 2023, discloses a passive magnetic guidance system and method for drilling. It discloses the connection method of a torpedo-type connector and the connection method of a male and female wet connector. It also discloses that the drill pipe is equipped with a bypass disconnector, and the cable exits through the bypass disconnector. The system includes: drill pipe, a non-magnetic component, a screw drill bit, a discharge system, and a passive magnetic guidance measurement system. An armored cable is connected to the female wet connector, and the male wet connector, torpedo-type connector, discharge system, auger, and passive magnetic guidance measurement system are connected sequentially. The passive magnetic guidance measurement system is fixed inside the non-magnetic component. When passive magnetic guidance measurement is required during drilling, a bypass disconnector is installed at the top of the drill pipe. The armored cable exits from inside the drill pipe through the bypass port of the bypass disconnector, and the female wet connector and its connecting structure are pumped downhole to connect with the male wet connector inside the downhole drill pipe.

[0005] Chinese patent publication number CN202431218U, published on September 12, 2012, discloses a blowout-proof, high-pressure-resistant bypass short section, including a bypass body, a connecting clamp device disposed in a bypass hole on the side of the bypass body, a split clamping device, and a cable straightening device. The clamp device is connected to the split clamping device, which in turn is connected to the cable straightening device, the lower end of which extends into the inner channel of the bypass body. The clamp device includes a cable clamp, a clamp retainer, a clamp connecting screw, and a clamp shearing screw; the split clamping device includes a split adjusting clamping nut and a split sealing sleeve; the cable straightening device includes an adjusting pad, a cable straightening sleeve, a wear-resistant sleeve, a set screw, a valve plate, a sealing steel ball, and an O-ring. Under normal circumstances, it can transmit tension, pressure, torque, current, and electrical signals; under special circumstances, the logging cable can be pulled out from the bypass hole of the bypass sub as needed, the bypass hole can be closed to prevent high-pressure liquid gas from being ejected from the bypass hole, and the production operation can be completed.

[0006] The publication number CN218669287U, published on March 21, 2023, discloses a connector suitable for cable retrieval through the well core, used to connect cables cut off at the wellbore. It includes an upper connector, a lower connector, a quick connector, and a fixed mounting plate. The upper connector is connected to the cable outside the well, the lower connector is connected to the cable inside the well, the quick connector is connected between the upper connector and the lower connector, and the quick connector is provided with an annular limiting element, which is located on the side of the quick connector near the upper connector. The fixed mounting plate is provided with a socket hole whose shape is adapted to the annular limiting element.

[0007] The existing technology has the following main drawbacks: 1) low efficiency of reverse core drilling; 2) the defect of cable breakage leading to interruption of logging data link during the retrieval process. Utility Model Content

[0008] The purpose of this invention is to provide a device for simultaneous retrieval and testing, which solves the problems of low efficiency in reverse core drilling operations and interruption of logging data links caused by cable breakage during retrieval in the existing technology.

[0009] The technical solution adopted by this utility model includes a quick cone frame, with a quick cable clamp connected to the lower end of the quick cone frame. The lower end of the quick cable clamp is sequentially connected to the drill string, drill string, bypass sub, shear sub, drill pipe, suspension sub, and wet connector assembly. The lower end of the wet connector assembly is connected to a retrieval cylinder. The logging cable is connected downward inside the quick cone frame and sequentially passes through the quick cable clamp, drill string, drill string, bypass sub, shear sub, drill pipe, and suspension sub, and is connected to the upper end of the wet connector assembly.

[0010] The features of this utility model also include: The quick-connect cone includes an upper connector and a lower connector. The lower end of the quick-connect cable clamp has a chuck, and the lower connector is hooked to the chuck. The chuck is connected in the drill string, and the lower connector is set at the upper end of the drill string through the chuck.

[0011] The drill string is connected to the drill string, which is connected to the bypass sub through a male and female wet connector. The bypass sub is connected to the shear sub through a male and female wet connector. The shear sub is connected to the drill pipe through a male and female wet connector. The drill pipe is connected to the suspension sub through a male and female wet connector. The suspension sub includes a circulation block, and a male wet connector of the wet connector assembly is connected to the circulation block.

[0012] The bypass stub includes a bypass stub body and an ethylene ball. The ethylene ball is located at the entrance of the main channel of the bypass stub. A seal is provided on the side of the lower part of the bypass stub body. The top of the oblique hole of the seal is connected to the adjusting nut fixing seat, and the adjusting nut fixing seat is connected to the clamping nut.

[0013] The shearing sub includes a shearing sub body. A piston cap and a cutter chuck cap are fixedly mounted on opposite sides of the shearing sub body. The piston cap is fixed to the side of the shearing sub body by a shearing screw. A cutter piston is installed inside the piston cap, and a cutter chuck is installed inside the cutter chuck cap. The cutter piston can move laterally to cut the logging cable.

[0014] The wet connector assembly includes a housing, with an adapter connected to the upper end of the housing. A weighting rod is installed in the adapter. The upper end of the weighting rod is connected to the male fast torpedo casing, and the lower end of the housing is connected to the female fast torpedo casing.

[0015] The lower end of the weighting rod is sequentially connected to a tension ring fixing sleeve, a tension ring, a seven-pin connector, a seven-pin pressure-bearing connector, a male wet connector-16-oil plug, a male wet connector-16-spring, a male wet connector-16-piston sleeve, and a male wet connector-16-piston. Inside the wet connector assembly, the following components are sequentially installed: a female wet connector-16-sleeve, a female wet connector-16-sliding sleeve, a female wet connector-16-connector, a wet connector-16-connector, a male wet connector-16-positioning pin, a female wet connector-16-shield, a wet connector-16-intermediate insulating ring, a wet connector-16-conductive ring, a female wet connector-16-conductive ring, a female wet connector-16-guide cap, a wet connector-16-guide cone, a wet connector-16-fixing plate, a piston, a male wet connector-16-piston sleeve, a male wet connector-16-spring, a male wet connector-16-balance short circuit, a male wet connector-16-adapter short section, and a seven-pin pressure-bearing plug.

[0016] The lower end of the fast cone frame is also fixed with a cone block, which has a cone-shaped stepped structure through hole.

[0017] The beneficial effects of this utility model are: This utility model's on-demand logging device, after retrieval of a stuck instrument through the core, does not break the instrument's weak points. After cutting the logging cable at the wellhead, the upper and lower cable cores are connected downhole using male and female wet connectors to establish a connection between the surface system and the downhole logging instrument. During the lifting and lowering of the drill string, a bypass short section is installed to lead out the logging cable, enabling tripping and dropping of the drill string. This allows for simultaneous retrieval and logging, achieving on-demand logging. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the quick cone frame, quick cable clamp and drill string in the connected state in this utility model; Figure 2 This is a schematic diagram of the structure of the rapid cone frame in this utility model; Figure 3 This is a schematic diagram of the structure of the high-speed cable clip in this utility model; Figure 4 This is a schematic diagram of the drilling tools and the following structures in this utility model for salvage operations; Figure 5 This is a schematic diagram of the structure of the wet joint cable cutting device in this utility model; Figure 6 This is a schematic diagram of the bypass short section structure in this utility model; Figure 7 This is a schematic diagram of the sheared short section structure in this utility model; Figure 8 This is a schematic diagram of the suspension short section structure in this utility model; Figure 9 This is a schematic diagram of the first part of the wet connector in this utility model; Figure 10 This is a schematic diagram of the second part of the wet connector in this utility model.

[0019] In the diagram: 1. Quick-connect cone frame; 2. Logging cable; 3. Quick-connect cable clamp; 4. Drill string; 101. First connecting sleeve; 102. Adapter; 103. Upper connector; 104. Locking ring; 105. Lower connector; 106. Adapter B; 107. Conical block; 108. Conical block housing; 301. DLQ-ZT; 302. DLQ-DZ-Nut; 303. DLQ-DZ-Support; 304. Chuck; 5. Drilling tools; 501. Fishing barrel; 502. Jamming instruments; 6. Bypass stub; 601. Bypass stub body; 602. Ethylene ball; 603. Adjusting nut fixing seat; 604. Compression nut; 605. Seal; 7. Shearing sub; 701. Shearing sub body; 702. Piston cap; 703. Shearing screw; 704. Cutter piston; 705. Cutter chuck cap; 706. Cutter chuck; 707. Balance piston; 708. Balance piston cap; 8. Drill pipe; 9. Suspension sub; 901. Suspension sub body; 902. Circulation block; 10. Wet joint assembly; 1001. Conical frame three-piece set; 1002. Set screw; 1003. Fast torpedo casing - male; 1004. Rubber sleeve; 1005. Seven-pin female terminal; 1006. φ6 double groove sealing plug; 1007. Second connecting sleeve; 1008. PEEK insulating sleeve; 1009. Weighting rod; 1010. Adaptor joint; 1011. Tension ring retaining sleeve; 1012. Tension ring; 1013. M6 socket head cap screw; 1014. M5 socket head cap screw 1015. Head screw; 1016. Seven-pin connector; 1017. First seven-pin pressure-bearing plug; 1018. Housing; 1019. Male wet connector-16-oil plug; 1020. Male wet connector-16-spring-1; 1021. Male wet connector-16-piston sleeve; 1022. Male wet connector-16-piston; 1023. Female wet connector-16-sleeve; 1024. Female wet connector-16-connector; 1025. Wet connector- 16-Connector; 1026, Male wet connector-16-Positioning pin; 1027, Female wet connector-16-Busket; 1028, Wet connector-16-Intermediate insulating ring; 1029, Wet connector-16-Conductive ring; 1030, Female wet connector-16-Conductive ring; 1031, Female wet connector-16-Guide cap; 1032, M10×15 socket head cap screw; 1033, Wet connector-16-Preload nut; 1034, Wet connector-16-Guide cone; 1035 1036. Wet Connector-16-Fixing Plate; 1037. Piston; 1038. Male Wet Connector-16-Piston Sleeve-1; 1039. Male Wet Connector-16-Spring-2; 1040. Male Wet Connector-16-Balance Short Connector; 1041. Male Wet Connector-16-Connecting Sleeve-21; 1042. Male Wet Connector-16-Converter Short Section; 1043. Second Seven-Pin Pressure Plug; 1044. Fast Torpedo Casing-Female. Detailed Implementation

[0020] The following detailed description is provided in conjunction with specific implementation methods.

[0021] This utility model's simultaneous logging and testing device comprises a rapid cone frame 1, a rapid cable clamp 3, a drill string 4, drill string 5, a bypass sub 6, a shear sub 7, a drill pipe 8, a suspension sub 9, and a wet connector assembly 10. First, the rapid cable clamp 3 holds the logging cable 2 and installs it on the drill string 4. The logging cable 2 is connected to the upper and lower ends of the rapid cone frame 1. The three-piece cone frame structure inside the rapid cone frame 1 holds the logging cable 2, which extends downwards into the rapid cable clamp 3. The lower part of the rapid cable clamp 3 rests in the drill string 4. The drill string 5 is installed at the lower part of the drill string 4. The bypass sub 6 is installed at the lower part of the drill string 5. The shear sub 7 is installed at the lower part of the bypass sub 6. The drill pipe 8 is installed at the lower part of the shear sub 7. The suspension sub 9 is installed at the lower part of the drill pipe 8. The wet connector assembly 10 is installed at the lower end of the wet connector assembly 10. A retrieval tube is installed at the lower end of the wet connector assembly 10, and a stuck instrument is located below the retrieval tube.

[0022] During reverse core retrieval, the drill string 5 and the stuck instrument 502 are lifted using the reverse core. Then, the logging cable 2 is suspended at the wellhead using a quick cable clamp 3. The logging cable 2 is then cut, and the lower end of the logging cable 2 at the wellhead is passed through the suspension sub 9. A male wet connector is made using the protruding logging cable 2. The suspension sub 9 is then installed on the upper end of the drill pipe 8 at the wellhead, and the drill pipe 8 is lowered to the docking depth. The upper end of the logging cable 2 is passed through the bypass sub 6 and the shear sub 7 to make a female wet connector. The lower end of the shear sub 7 is then connected to the drill pipe 8, and the bypass sub 6 is lowered to the casing shoe. After completing the above connections, the pump is turned on to connect the male and female wet connectors to restore instrument communication. The stuck instrument is then lifted using the retrieval tube.

[0023] For details, please refer to Figures 1-2 The quick cone frame 1 includes a first connecting sleeve 101, inside which is a cone frame three-piece set for connecting the logging cable 2. The lower part of the first connecting sleeve 101 is fixedly connected to the adapter 102 for connecting the first connecting sleeve 101 and the upper connector 103. The lower end is equipped with a locking ring 104 and a lower connector 105. The lower end of the adapter B 106 is also equipped with a cone block shell 108. Inside the cone block shell 108, a cone block 107 for connecting the logging cable 2 is installed.

[0024] refer to Figure 3 As shown, the quick cable clamp 3 includes DLQ-ZT301 (DLQ-ZT means cable clamp-cone in Chinese). DLQ-ZT301 has two clamping structures for quick clamping of logging cables. DLQ-DZ-nut 302 (DLQ-DZ means cable clamp-inverted cone in Chinese) is used to tighten and loosen DLQ-ZT301. The lower end of DLQ-ZT301 is DLQ-DZ-support 303. A chuck 304 is fixed to the side of DLQ-DZ-support 303 and sits on the drill string 4.

[0025] refer to Figures 4-5As shown, the lower end of drill string 4 is connected to drill string 5, the lower end of drill string 5 is connected to bypass sub 6, the lower end of bypass sub 6 is connected to shear sub 7, the lower end of shear sub 7 is connected to drill pipe 8, the lower end of drill pipe 8 is connected to suspension sub 9, and the lower end of suspension sub 9 is connected to wet joint assembly 10.

[0026] refer to Figure 6 As shown, an ethylene ball 602 is placed inside the bypass short section body 601. A sealing element 605 is fixed on the side of the bypass short section body 601. The sealing element 605 is used to seal the logging cable 2. An adjusting nut fixing seat 603 is connected to the top of the sealing element 605, and a clamping nut 604 is fitted therewith.

[0027] refer to Figure 7 As shown, the shearing sub 7 includes a shearing sub body 701. The upper end of the shearing sub body 701 is connected to the bypass sub 6 via a drill thread, and the lower end is connected to the suspension sub 9 via a drill thread. The shearing sub body 701 is equipped with a piston cap 702 and a cutter piston 704. A shearing screw 703 is provided inside the piston cap 702. On the other side of the shearing sub body 701, a cutter chuck cap 705 and a cutter chuck 706 are installed. The logging cable 2 is cut by the cooperation of the cutter chuck 706 and the cutter piston 704. A cavity is opened on the side wall at the lower end of the shearing sub body 701. A balance piston 707 is slidably installed in the cavity to balance the oil pressure. A balance piston cap 708 is installed at the entrance of the cavity to limit the balance piston 707.

[0028] refer to Figure 8 As shown, the suspension section 9 includes a suspension section body 901, and a circulation block 902 is installed in a channel inside the suspension section body 901.

[0029] refer to Figure 9-10As shown, the upper quick-connect torpedo casing 1003 of the wet connector assembly 10 contains a cone-frame three-piece sleeve 1001 for connecting two cable sections. A set screw 1002 is used to fix the cone-frame three-piece sleeve 1001, primarily to prevent rotation. A seven-core female terminal 1005 is used to connect to the cable core, and an outer rubber sleeve 1004 is used to seal the cable core of the logging cable 2. Signals are then transmitted through a φ6 double-groove sealing plug 1006. The above describes the structure of the upper quick connector. It also includes a second connecting sleeve 1007, which is mainly used for quick docking with the lower weight rod 1009 and its PEEK insulating sleeve 1008. The weight rod 1... The lower end of 009 mainly connects to the female wet connector, which is connected to the male wet connector at the lower end by pumping pressure through the drill pipe 8 at the upper end; the adapter 1010 is used to connect the drill pipe 8 and the housing 1017, and the lower end contains a tension ring fixing sleeve 1011, a tension ring 1012, and a fixing clip with M6 socket head cap screws 1013 and M5 socket head cap screws 1014 to prevent the male and female wet connectors from separating after docking; the seven-pin connector 1015, the first seven-pin pressure-bearing plug 1016 connects to the connector on the weight rod 1009 via a high-temperature wire, and the male wet connector-16-oil plug 1018, male wet connector-16-spring-1 1019. Male wet connector-16-piston sleeve; 1020. Male wet connector-16-piston; 1021. Used for oil injection and pressure balancing; The wet connector is internally fitted with, in sequence, female wet connector-16-sleeve; 1022. Female wet connector-16-sliding sleeve; 1023. Female wet connector-16-connector; 1024. Wet connector-16-connector; 1025. Male wet connector-16-locating pin; 1026. Female wet connector-16-bulb; 1027. Wet connector-16- The following components are used for signal docking and transmission: intermediate insulating ring 1028, wet connector-16-conductive ring 1029, female wet connector-16-conductive ring 1030, female wet connector-16-guide cap 1031, M10×15 socket head cap screw 1032, wet connector-16-preload nut 1033, wet connector-16-guide cone 1034, wet connector-16-fixing plate 1035; piston 1036, male wet connector-16-piston sleeve-1. 1037. Male wet connector-16-spring-2 1038. Male wet connector-16-balanced short circuit 1039. Male wet connector-16-connecting sleeve-21 1040. Used to balance pressure difference, and male wet connector-16-connecting sleeve-27-100 1042. Used to connect male wet connector-16-adapter short section 1041. Second seven-pin pressure-bearing plug 1043. And fast torpedo casing-female 1044.

[0030] Example 1 like Figure 1-3As shown, in the reverse core retrieval process, the following tools are used to retrieve the stuck instrument in the well: quick cable clamp 3, quick cone frame 1, chuck 304, flexible weight rod 1009, and weight rod 1009 fixation tool. During the retrieval process, the logging cable 2 passes through the water hole of the drill string 5 and is always suspended from the stuck instrument 502, guiding the drill string 5 and the retrieval tube 501 to retrieve the stuck instrument 502.

[0031] The specific structure and process are as follows: A quick-connect cable clamp 3 is installed at the wellhead to secure the logging cable 2. A certain length of logging cable is cut and placed into the quick-connect cone frame 1. The upper connector 103 of the quick-connect cone frame 1 is passed through the drill string 4 and hooked to the lower connector 105 of the quick-connect cone frame 1 at the wellhead. The drill string 4 is lowered and placed at the wellhead. The lower connector 105 of the quick-connect cone frame 1 is fixed to the upper end of the drill string 4 using the chuck 304 of the quick-connect cable clamp 3. The quick-connect cone frame 1 is disassembled, and the upper connector 103 of the quick-connect cone frame 1 is lifted. The upper connector 103 of the quick-connect cone frame 1 is then repeatedly... Connect the lower connector 105 and use the chuck 304 of the quick cable clamp 3 to fix the lower connector of the quick cone frame 1 to the upper end of the drill string 4, and lift the upper connector 103 of the quick cone frame 1. Continuously lower the drill string 5 until the retrieval tube 501 grabs the stuck instrument 502; reverse core drilling to lift the stuck instrument 502 to the casing shoe. Cut the logging cable 2 once for each drill string 5. Use the quick cone frame 1 to connect the logging cable 2, so as to achieve quick connection after the logging cable 2 is cut during the retrieval process to prevent the logging data link from being interrupted, that is, to achieve retrieval and testing at the same time.

[0032] Example 2 like Figure 1 , 2 As shown in Figure 3, the quick cable clip 3 in reverse core drilling is used when the logging instrument gets stuck in the drill string 5 during the logging process and the stuck instrument 502 cannot be pulled out by lifting the logging cable 2. At this time, it is necessary to lift the drill string 5, the logging cable 2 and the stuck instrument 502 as a whole by using the reverse core drilling process. During the reverse core drilling process, the logging cable 2 needs to be cut once for each column lifted.

[0033] At this point, the quick cable clamp 3 in the reverse core drilling retrieval process serves to quickly reverse the logging cable 2. Two quick cable clamps 3 can be used to lift the logging cable 2. The specific operation is as follows: First, use one quick cable clamp 3 to hold the logging cable 2, then use the on-site oil truck with a hook to lift the logging cable 2. When it reaches the highest point, use another quick cable clamp 3 at the wellhead to hold the logging cable 2. Then, the oil truck lowers this quick cable clamp 3, and so on. The upper connector 103 of the quick cone frame 1 adopts a cone frame three-piece structure. The first connecting sleeve 101 has a cone frame three-piece set inside for connecting the logging cable 2. It is threadedly connected to the upper connector 103 through the adapter 102. The locking ring 104 is made of elastic material to achieve axial locking between the upper connector 103 and the lower connector 105. The cone block 107 has a cone-shaped stepped structure. Under the extrusion action of the conversion head B106, it produces radial deformation to complete the mechanical clamping of the logging cable 2.

[0034] The quick cable clamp 3 adopts a split jaw design, which realizes the quick engagement of the logging cable 2 through the wedge principle; the logging cable 2 passes through the center hole of the chuck 304 and the inner cavity of the cone block 107 of the quick cable clamp 3 in sequence, and both ends are fixed to the upper connector 103 of DLQ-ZT301 and quick cone frame 1 respectively; the DLQ-DZ-support 303 of the quick cable clamp 3 sits on the drill string 4.

[0035] Example 3 like Figure 4 As shown, during the retrieval and testing process, when performing reverse core retrieval, the drill string 5 and its instruments are lifted from the reverse core. Then, the logging cable 2 is suspended at the wellhead using a quick cable clamp 3. A suspension sub 9 is installed at the upper end of the drill pipe 8 at the wellhead. The sub contains male and female wet connectors. First, the male wet connector is made and placed into the suspension sub 9. The drill pipe 8 is then connected and lowered to the docking depth. The upper logging cable 2 passes through the bypass sub 6 and the shear sub 7. A female wet connector is made at the lower end of the shear sub 7. The drill pipe 8 is then connected and the bypass sub 6 is lowered to the casing shoe. After completing the above connection, the pump is turned on to dock the wet connector and restore instrument communication.

[0036] Example 4 like Figure 5-7 As shown, during the cutting process of logging cable 2, when the wellhead operator receives the instruction to cut logging cable 2, ethylene ball 602 is manually thrown into drill string 5, and the ethylene ball 602 is transported from the wellhead to the bypass sub 6 by pump pressure. The ethylene ball 602 is seated in place, blocking the main flow of bypass sub 6, and the pump pressure is increased to start the cutter piston 704. Pressure is transmitted along the sideflow channel to the shearing sub 7, applying pressure to the cutter piston 704. Once the pressure reaches approximately 15 MPa, the shear screw 703 in the shearing sub 7 releases the cutter piston 704, which then pushes the cutter to cut the logging cable 2. After the shearing sub 7 cuts the logging cable 2, the logging cable 2 can be pulled out from the bypass sub 6. At this time, the seal 605 in the bypass sub 6 will be pressed shut by the positive pressure inside the drill string 5, severing the connection between the inside and outside of the bypass sub 6. Pressure can then be continued to knock the ethylene ball 602 sealing the main flow channel of the bypass sub 6 into the shearing sub 7, allowing for well control operations. The cutter chuck cap 705 and cutter chuck 706 work with the cutter piston 704 to shear the logging cable 2, while the balance piston 707 balances the downhole pressure, and the balance piston cap 708 provides a limiting effect on the balance piston 707.

[0037] Example 5 like Figure 5-10 As shown, during the wet joint pumping process, when wet joint docking is required, the male wet joint in the wet joint assembly 10 is first connected to the circulation block 902 inside the suspension sub 9. The circulation block 902 is equipped with a mud channel, which can realize downhole mud circulation. Then, the drill thread at the upper end of the suspension sub 9 and the drill thread at the lower end of the drill pipe 8 are docked and transported to the designated position. Then, the logging cable 2 is passed through the inclined hole adjusting nut fixing seat 603 of the bypass sub 6, and then the sealing element 605 and the clamping nut 604 are installed in the inclined hole adjusting nut fixing seat 603.

[0038] The logging cable 2 is then passed through the center hole of the shearing sub 7, and then the logging cable 2 is connected to the upper cone frame of the wet connector assembly 10. After that, the lower buckle of the bypass sub 6 and the upper buckle of the shearing sub 7 are connected. After the connection is completed, the male and female wet connectors are connected by pumping. After the connection is completed, logging work is carried out.

[0039] Example 6 like Figure 9-10 As shown, the wet connector assembly 10 is connected downhole. The cone-frame three-piece set 1001 is connected to the logging cable 2 at the wellhead and tightened by the set screw 1002 on the side wall to prevent the cone-frame three-piece set 1001 from rotating. The seven cores of the logging cable 2 are pressed together by the rubber sleeve 1004 and the seven-core female terminal 1005 and installed on the φ6 double groove sealing plug 1006 on the fast torpedo shell-male 1003. Then, the prepared upper end is connected to the weight rod 1009 through the second connecting sleeve 1007 to realize the signal connection. The upper end of the weight rod 1009 contains a PEEK insulating sleeve 1008, which also contains a connector for connecting signals. The two are connected to realize the signal transmission.

[0040] The wet connector assembly 10 consists of a male wet connector and a female wet connector. The male wet connector and housing 1017 are pre-sent downhole and placed on the circulation block 902 of the suspension sub 9. The circulation block 902 is fixed inside the suspension sub body 901. The wet connector-16-fixing plate 1035, through the cooperation of M10×15 socket head cap screws 1032, limits the male wet connector and facilitates the docking of the female wet connector. The wet connector-16-guide cone 1034 serves as the docking guide. The piston 1036, in conjunction with the male wet connector-16-piston sleeve-1 1037 and the male wet connector-16-spring-2 1038, achieves pressure balance. The male wet connector-16-conversion sub 1041 enables the conversion of signals through the male and female terminals. Afterwards, the male wet connector-16-connecting sleeve-21 1040 connects male wet connector-16-balanced short circuit 1039 and male wet connector-16-adapter short section 1041, male wet connector-16-connecting sleeve-27-100 1042 is used to connect male wet connector-16-adapter short section 1041 and fast torpedo casing-female 1044.

[0041] When the male wet connector is pumped to the female wet connector that has been lowered into place, the two are connected by pump pressure after being delivered to the position. The wet connector-16-conductive ring 1029 and the female wet connector-16-conductive ring 1030 realize signal transmission. The male wet connector-16-spring-1 1019, the male wet connector-16-piston sleeve 1020, and the male wet connector-16-piston 1021 work together to achieve pressure balance of the female wet connector. In order to prevent the female wet connector from disengaging, the tension ring 1012 can play a limiting role. After that, it can be powered on to work.

[0042] The working principle and process of the on-the-spot testing device of this utility model: The on-demand retrieval and logging device combines retrieval and logging operations. When the instrument or logging cable 2 gets stuck, it is unstuck by core retrieval and can be used in conjunction with reverse core retrieval to maintain cable communication and continue logging to complete the original logging process. The working principle and process are as follows: (1) Core retrieval: the retrieval cylinder 501 grabs the stuck instrument 502 and retrieves it; (2) Reverse core retrieval: the stuck instrument 502 is lifted into the casing; (3) The wet connector assembly 10 is used to connect the instrument, restore communication, and continue logging operations. During reverse core retrieval, the drill string 5 and its stuck instrument 502 are lifted using the reverse core, and then the logging cable 2 is suspended using the inlet quick cable clamp 3. A suspension sub 9 is installed at the upper end of the drill string 5 at the wellhead; it is mainly used to suspend the wet connector assembly 10, which is mainly used for connecting the logging cable 2 signal. First, a female wet connector is fabricated and placed into the suspension sub 9, then the drill string 5 is connected and lowered to the docking depth. The upper logging cable 2 passes through the bypass sub 6 and the shear sub 7. In the logging process using the drill pipe 8 (tubing), the bypass acts like a "tee," allowing the logging cable 2 to enter the drill pipe 8 (tubing) from the outside. The shear sub 7 is used to cut the logging cable 2 when necessary. A male wet connector is fabricated at the lower end of the shear sub 7, and the bypass sub 6 is lowered to the casing shoe via the drill string 5. After completing the above, the pump is turned on to connect the wet connector and restore instrument communication.

[0043] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for on-the-spot testing, characterized in that, The system includes a quick cone frame (1), with a quick cable clamp (3) connected to the lower end of the quick cone frame (1). The lower end of the quick cable clamp (3) is connected in sequence to the drill string (4), drill string (5), bypass sub (6), shear sub (7), drill pipe (8), suspension sub (9), and wet connector assembly (10). The lower end of the wet connector assembly (10) is connected to the retrieval cylinder (501). The logging cable (2) is connected downward inside the quick cone frame (1) and passes through the quick cable clamp (3), drill string (4), drill string (5), bypass sub (6), shear sub (7), drill pipe (8), and suspension sub (9) in sequence, and is connected to the upper end of the wet connector assembly (10).

2. The device for on-the-spot testing according to claim 1, characterized in that, The fast cone frame (1) includes an upper connector (103) and a lower connector (105). The lower end of the fast cable clamp (3) has a chuck (304). The lower connector (105) is hooked to the chuck (304). The chuck (304) is connected in the drill string (4). The lower connector (105) is set at the upper end of the drill string (4) through the chuck (304).

3. The device for on-the-spot testing according to claim 1, characterized in that, The drill string (4) is connected to the drill string (5), the drill string (5) is connected to the bypass sub (6) via a male and female wet connector, the bypass sub (6) is connected to the shear sub (7) via a male and female wet connector, the shear sub (7) is connected to the drill pipe (8) via a male and female wet connector, the drill pipe (8) is connected to the suspension sub (9) via a male and female wet connector, the suspension sub (9) includes a circulation block (902), the circulation block (902) is connected to the male wet connector of the wet connector assembly (10).

4. The device for on-the-spot testing according to claim 1, characterized in that, The bypass stub (6) includes a bypass stub body (601) and an ethylene ball (602). The ethylene ball (602) is located at the entrance of the main channel of the bypass stub (6). A sealing element (605) is provided on the side of the bypass stub body (601). The top of the oblique hole of the sealing element (605) is connected to an adjusting nut fixing seat (603). A clamping nut (604) is connected in the adjusting nut fixing seat (603).

5. The on-demand testing device according to claim 1, characterized in that, The shearing sub (7) includes a shearing sub body (701), on which a piston cap (702) and a cutter chuck cap (705) are fixedly mounted on opposite sides. The piston cap (702) is fixed to the side of the shearing sub body (701) by a shearing screw (703). A cutter piston (704) is provided inside the piston cap (702), and a cutter chuck (706) is provided inside the cutter chuck cap (705). The cutter piston (704) can move laterally to cut off the logging cable (2).

6. The device for on-the-spot testing according to claim 1, characterized in that, The wet connector assembly (10) includes a housing (1017), the upper end of which is connected to a conversion connector (1010), a weighting rod (1009) is provided in the conversion connector (1010), the upper end of which is connected to a fast torpedo casing - male (1003), and the lower end of which is connected to a fast torpedo casing - female (1044).

7. The on-demand testing device according to claim 6, characterized in that, The lower end of the weighted rod (1009) is sequentially connected to a tension ring fixing sleeve (1011), a tension ring (1012), a seven-pin connector (1015), a first seven-pin pressure-bearing plug (1016), a male wet connector-16-oil plug (1018), a male wet connector-16-spring-1 (1019), a male wet connector-16-piston sleeve (1020), and a male wet connector-16-piston (1021); the wet connector assembly (10) is also sequentially equipped with a female wet connector-16-sleeve (1022), a female wet connector-16-sliding sleeve (1023), a female wet connector-16-connector (1024), a wet connector-16-connector (1025), and a male wet connector-16-fixed sleeve (1025). Position pin (1026), female wet connector-16- bushing (1027), wet connector-16-intermediate insulating ring (1028), wet connector-16-conductive ring (1029), female wet connector-16-conductive ring (1030), female wet connector-16-guide cap (1031), wet connector-16-guide cone (1034), wet connector-16-fixing plate (1035), piston (1036), male wet connector-16-piston sleeve-1 (1037), male wet connector-16-spring-2 (1038), male wet connector-16-balanced short circuit (1039), male wet connector-16-adapter short section (1041), second seven-pin pressure-bearing plug (1043).

8. The on-demand testing device according to claim 2, characterized in that, The lower end of the fast cone frame (1) is also fixed with a cone block (107), which has a cone-shaped stepped structure through hole.

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