CN204947554U - A kind of water injection well down-hole high pressure sealing cable junctions - Google Patents
A kind of water injection well down-hole high pressure sealing cable junctions Download PDFInfo
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- CN204947554U CN204947554U CN201520688423.7U CN201520688423U CN204947554U CN 204947554 U CN204947554 U CN 204947554U CN 201520688423 U CN201520688423 U CN 201520688423U CN 204947554 U CN204947554 U CN 204947554U
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Abstract
The utility model provides a kind of water injection well down-hole high pressure sealing cable junctions, comprises upper and lower termination, copper cone, pressure cap, middle casing; Upper end is provided with the cable passage be connected with the cable heart passage of copper cone, and pressure cap is threaded with cavity one; Middle casing is connected between upper end and lower end, and the silicone grease hole on it has been threaded silicone grease hole screw; Be sealed with lead-out wire in lower end, the central axis that this lead-out wire is positioned at lower end runs through whole lower end; The right-hand member of lower end is provided with the cavity two connecting cable-passing packer, have the contact pin of the instruments such as the digital injection well downhole flow regulator of cable.How cable-passing packer and intelligent watering device cable couple together and the problem of the long-term high pressure sealing in down-hole when solving the dispensing operation of cable digital intelligent by the utility model, nothing leakage in 48 hours under indoor 60MPa pressure.The utility model is skillfully constructed, simplicity of design, safe and reliable, good airproof performance, running cost expense is low and operating efficiency is high.
Description
Technical field
The utility model belongs to oilfield exploitation technical field, is specifically related to a kind of water injection well down-hole high pressure sealing cable junctions.
Background technology
Mainly based on steel wire operation during current separated-zone water infection oil field well surveying examination allotment, fixing water nozzle is changed in the pulling repeatedly that rises being controlled steel wire by ground well testing truck parametric controller, workload is large, cannot ground control in real time downhole measurement adjusting instrument realize surveying adjust synchronous, and pulling instrument lateral register to be butted into power low.
In order to solve high angle hole, deep-well, produced-water reinjection well, horizontal well seperated layer water injection and a test allotment difficult problem, by the research of zonal injection technology, the development of key tool, consider that employing has cable digital intelligent zonal injection technology technology simultaneously, explore horizontal well in segments water filling new way, further raising water filling level of digital, realize dispensing well in real-time teletransmissions of data such as water-injection station remote testing allotment and flow pressures, cable-passing packer during in order to solve the dispensing operation of cable digital intelligent, the problem that intelligent watering device is connected with cable, be necessary the cable joint designing the sealing of a kind of down-hole high pressure.
Utility model content
The purpose of this utility model overcomes in above-mentioned prior art to have problems, a kind of water injection well down-hole high pressure sealing cable junctions is provided, thus solves and have during the dispensing operation of cable digital intelligent and how cable-passing packer and intelligent watering device cable are coupled together and the problem of the long-term high pressure sealing in down-hole.
The technical solution of the utility model is: a kind of water injection well down-hole high pressure sealing cable junctions, comprise upper end, copper cone, pressure cap, middle casing and lower end, the left end of described upper end is provided with cable passage, this cable passage and being connected for the cavity one holding copper cone set by upper end right-hand member, and the cable heart passage be provided with in the middle part of copper cone through the cable heart, the middle part of described pressure cap is also provided with the cable heart passage through the cable heart, is threaded between pressure cap with the cavity one set by upper end right-hand member; The left end of described middle casing is threaded with upper end, and the right-hand member of middle casing is threaded with lower end, middle casing also has and is communicated with the silicone grease hole of its casing cavity, and this silicone grease hole is threaded the silicone grease hole screw in this silicone grease hole of shutoff; Be sealed with lead-out wire in lower end, this lead-out wire is positioned on the central axis of lower end, and runs through whole lower end; The right-hand member of lower end is provided with the cavity two connecting instrument plug.
The left end of above-mentioned middle casing with between upper end for right-handed thread is connected, the right-hand member of described middle casing with between lower end for left-hand thread is threaded.
The left end of above-mentioned middle casing with between upper end for left-hand thread is threaded, the right-hand member of described middle casing with between lower end for right-handed thread is connected.
The two ends, left and right of above-mentioned copper cone are pyramidal structure.
Cavity two set by the right-hand member of above-mentioned lower end is threaded with being connected between instrument plug.
The beneficial effects of the utility model: the utility model can realize cable-passing packer, have the connection of cable digital intelligent injection well downhole flow regulator and cable, then cable is drawn from well head and be connected with ground controller, realize dispensing well in the real-time teletransmission of data and monitoring such as water-injection station remote testing allotment and flow pressures, for new way has been verified in the meticulous seperated layer water injection of high-angle wells and horizontal wells.Within 48 hours under indoor 60MPa pressure, without leakage, this cable joint is skillfully constructed the utility model, simplicity of design, safe and reliable, good airproof performance, running cost expense is low and operating efficiency is high.
Below with reference to accompanying drawing, the utility model is described in further details.
Accompanying drawing explanation
Fig. 1 is sectional structure chart of the present utility model.
Description of reference numerals: wherein: 1, cable passage; 2, copper cone; 3, pressure cap; 4, cable heart passage; 5, casing cavity; 6, lead-out wire; 7, sealing plug; 8, instrument plug; 9, upper end; 10, lower end; 11, middle casing, 12, silicone grease hole screw; 13, cavity one; 14, cavity two.
Embodiment
Embodiment 1:
As shown in Figure 1, the utility model provides a kind of water injection well down-hole high pressure sealing cable junctions, comprise upper end 9, copper cone 2, pressure cap 3, middle casing 11 and lower end 10, the left end of described upper end 9 is provided with cable passage 1, this cable passage 1 and being connected for the cavity 1 holding copper cone 2 set by upper end 9 right-hand member, and the cable heart passage 4 be provided with in the middle part of copper cone 2 through the cable heart, the two ends, left and right of copper cone 2 are pyramidal structure, the middle part of described pressure cap 3 is also provided with the cable heart passage 4 through the cable heart, be threaded between pressure cap 3 with the cavity one set by upper end 9 right-hand member, the left end of described middle casing 11 is threaded with upper end 9, the right-hand member of middle casing 11 is threaded with lower end 10, middle casing 11 also has the silicone grease hole being communicated with its casing cavity 5, this silicone grease hole is threaded the silicone grease hole screw 12 in this silicone grease hole of shutoff, be sealed with lead-out wire 6 in lower end 10, this lead-out wire 6 is positioned on the central axis of lower end 10, and runs through whole lower end 10, the right-hand member of lower end 10 is provided with the cavity 2 14 connecting instrument plug 8, this cavity 2 14 is threaded with being connected between instrument plug 8, in actual practicality cavity 2 14 with cable-passing packer, have the contact pin of the instruments such as the digital injection well downhole flow regulator of cable to be connected, and rely on screw thread rubber sealing.The present embodiment utilizes copper cone, pressure cap, high pressure to seal cable joint from the material such as adhesive tape, silicone grease, cable-passing packer can be realized, have the connection of cable digital intelligent injection well downhole flow regulator and cable, then cable is drawn from well head and be connected with ground controller, realize dispensing well in the real-time teletransmission of data and monitoring such as water-injection station remote testing allotment and flow pressures, for new way has been verified in the meticulous seperated layer water injection of high-angle wells and horizontal wells.
Embodiment 2:
On the basis of embodiment 1, the left end of described middle casing 11 uses right-handed thread to be connected with between upper end 9, and the right-hand member of middle casing 11 is threaded with using left-hand thread between lower end 10.Do like this when can make to tighten between left and right two ends and middle casing 11 and ensure that the cable conductor of the inside can not twist thus damage cable core.Or the left end of middle casing 11 also can be threaded for left-hand thread with between upper end 9, simultaneously casing 11 right-hand member with between lower end 10 for right-handed thread is connected, object is the same.
For making the purpose of this utility model, technical scheme and advantage clearly, introduce the making step be specifically connected with cable of the present utility model below in detail:
(1) block neatly by cable bolt clipper, this cable end upper end formation is divided into upper end 9, copper cone 2 and pressure cap 3 after taking apart.
(2) cable is first passed upper end 9, the more two-layer steel wire of strip off crust, cable core, through copper cone 2, reserves about 20cm length.Push against copper cone 2 with pressure cap 3, be tightly screwed on upper end 9, namely steel wire is fixed.
(3) cable conductor is welded on the left end of lead-out wire 6 through after middle casing 11, is then wrapped in lead-in wire outlet joint place with high pressure from adhesive tape.
(4) twining a few circle electrical adhesive tape again in ending place of high pressure adhesive tape prevents high pressure adhesive tape from loosening when constructing, and after winding, line is carefully filled in the outer casing of middle casing 11() casing cavity 5 in.
(5) after tightening between upper and lower termination 9,10 and middle casing 11, then inject silicone grease from silicone grease hole, until silicone grease overflows from the cable inlet at upper end 9 top, then tighten silicone grease hole screw 12.Finally compress cable inlet place sealing plug 7, be connected with digital injection well downhole flow regulator or cable-passing packer and realize sealing.
The utility model utilizes copper cone, pressure cap, high pressure to seal cable joint from the material such as adhesive tape, silicone grease.The utility model can realize cable-passing packer, have the connection of cable digital intelligent injection well downhole flow regulator and cable, then cable is drawn from well head and be connected with ground controller, realize dispensing well in the real-time teletransmission of data and monitoring such as water-injection station remote testing allotment and flow pressures, for new way has been verified in the meticulous seperated layer water injection of high-angle wells and horizontal wells.Within 48 hours under indoor 60MPa pressure, without leakage, this cable joint is skillfully constructed the utility model, simplicity of design, safe and reliable, good airproof performance, running cost expense is low and operating efficiency is high.
The part do not described in detail in present embodiment belongs to the known conventional means of the industry, does not describe one by one here.More than exemplifying is only illustrate of the present utility model, does not form the restriction to protection range of the present utility model, everyly all belongs within protection range of the present utility model with the same or analogous design of the utility model.
Claims (5)
1. a water injection well down-hole high pressure sealing cable junctions, comprise upper end (9), copper cone (2), pressure cap (3), middle casing (11) and lower end (10), it is characterized in that: the left end of described upper end (9) is provided with cable passage (1), this cable passage (1) and being connected for the cavity one holding copper cone (2) set by upper end (9) right-hand member, and copper cone (2) middle part is provided with the cable heart passage (4) through the cable heart, the middle part of described pressure cap (3) is also provided with the cable heart passage (4) through the cable heart, be threaded between pressure cap (3) with the cavity one (13) set by upper end (9) right-hand member, the left end of described middle casing (11) is threaded with upper end (9), the right-hand member of middle casing (11) is threaded with lower end (10), middle casing (11) also has the silicone grease hole being communicated with its casing cavity (5), and this silicone grease hole is threaded silicone grease hole screw (12) in this silicone grease hole of shutoff, be sealed with lead-out wire (6) in lower end (10), this lead-out wire (6) is positioned on the central axis of lower end (10), and runs through whole lower end (10), the right-hand member of lower end (10) is provided with the cavity two (14) connecting instrument plug (8).
2. a kind of water injection well down-hole high pressure sealing cable junctions as claimed in claim 1, it is characterized in that: the left end of described middle casing (11) with between upper end (9) for right-handed thread is connected, the right-hand member of described middle casing (11) with between lower end (10) for left-hand thread is threaded.
3. a kind of water injection well down-hole high pressure sealing cable junctions as claimed in claim 1, it is characterized in that: the left end of described middle casing (11) with between upper end (9) for left-hand thread is threaded, the right-hand member of described middle casing (11) with between lower end (10) for right-handed thread is connected.
4. a kind of water injection well down-hole high pressure sealing cable junctions as claimed in claim 1, is characterized in that: the two ends, left and right of described copper cone (2) are pyramidal structure.
5. a kind of water injection well down-hole high pressure sealing cable junctions as claimed in claim 1, is characterized in that: the cavity two (14) set by right-hand member of described lower end (10) is threaded with being connected between instrument plug (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520688423.7U CN204947554U (en) | 2015-09-08 | 2015-09-08 | A kind of water injection well down-hole high pressure sealing cable junctions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520688423.7U CN204947554U (en) | 2015-09-08 | 2015-09-08 | A kind of water injection well down-hole high pressure sealing cable junctions |
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| CN204947554U true CN204947554U (en) | 2016-01-06 |
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| CN201520688423.7U Active CN204947554U (en) | 2015-09-08 | 2015-09-08 | A kind of water injection well down-hole high pressure sealing cable junctions |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108286418A (en) * | 2018-02-24 | 2018-07-17 | 中国石油天然气股份有限公司 | A kind of water injection well coiled tubing intelligent testing tune distributor cable connection structure and method |
| CN109707334A (en) * | 2019-01-21 | 2019-05-03 | 中国石油天然气股份有限公司 | A kind of water injection well intelligently dispensed electric cable wellhead sealing device |
| CN114744580A (en) * | 2022-02-25 | 2022-07-12 | 中国海洋石油集团有限公司 | Leak-proof and damp-proof sealing structure of electric control water injection working barrel and using method of leak-proof and damp-proof sealing structure |
-
2015
- 2015-09-08 CN CN201520688423.7U patent/CN204947554U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108286418A (en) * | 2018-02-24 | 2018-07-17 | 中国石油天然气股份有限公司 | A kind of water injection well coiled tubing intelligent testing tune distributor cable connection structure and method |
| CN108286418B (en) * | 2018-02-24 | 2024-01-30 | 中国石油天然气股份有限公司 | Cable connection structure and method for intelligent measuring and adjusting injection device of coiled tubing of water injection well |
| CN109707334A (en) * | 2019-01-21 | 2019-05-03 | 中国石油天然气股份有限公司 | A kind of water injection well intelligently dispensed electric cable wellhead sealing device |
| CN109707334B (en) * | 2019-01-21 | 2023-09-26 | 中国石油天然气股份有限公司 | Intelligent split injection cable wellhead sealing device for water injection well |
| CN114744580A (en) * | 2022-02-25 | 2022-07-12 | 中国海洋石油集团有限公司 | Leak-proof and damp-proof sealing structure of electric control water injection working barrel and using method of leak-proof and damp-proof sealing structure |
| CN114744580B (en) * | 2022-02-25 | 2024-01-02 | 中国海洋石油集团有限公司 | Leakage-proof and moisture-proof sealing structure of electric control water injection working cylinder and use method thereof |
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