CN109138855A - Extract underground heat hollow rod - Google Patents
Extract underground heat hollow rod Download PDFInfo
- Publication number
- CN109138855A CN109138855A CN201811238302.7A CN201811238302A CN109138855A CN 109138855 A CN109138855 A CN 109138855A CN 201811238302 A CN201811238302 A CN 201811238302A CN 109138855 A CN109138855 A CN 109138855A
- Authority
- CN
- China
- Prior art keywords
- hole
- hollow rod
- injection hole
- screw thread
- lower contact
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000284 extract Substances 0.000 title description 3
- 238000002347 injection Methods 0.000 claims abstract description 28
- 239000007924 injection Substances 0.000 claims abstract description 28
- 239000012530 fluid Substances 0.000 claims abstract description 8
- 238000000605 extraction Methods 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 abstract description 18
- 230000008021 deposition Effects 0.000 abstract description 7
- 238000012546 transfer Methods 0.000 abstract description 7
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 3
- 239000001993 wax Substances 0.000 description 12
- 239000003129 oil well Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 244000273618 Sphenoclea zeylanica Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/006—Accessories for drilling pipes, e.g. cleaners
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B36/00—Heating, cooling, insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B37/00—Methods or apparatus for cleaning boreholes or wells
Abstract
A kind of extraction underground heat hollow rod, including top connection, hollow rod body, lower contact, the lower end of top connection and the upper end of hollow rod body connect, the lower end of hollow rod body and the upper end of lower contact connect, screw thread on sucker rod is arranged at the top of top connection, screw thread under sucker rod is arranged at the lower part of lower contact, screw thread matches with screw thread under the sucker rod on the sucker rod, there is through-hole in the inside of hollow rod body, there is injection hole in lower contact, the injection hole is communicated with the through-hole, through the injection hole to after injecting superconducting fluid in the through-hole, the injection hole is sealed by plugging mechanism, prevent the superconducting fluid in the through-hole from leaking outside, utilize vacuum tube superconductive heat transfer mechanism, superconductive liquid is heated by well temperature and is vaporized, formation temperature is passed into whole hollow rod body rapidly, heat well liquid, well liquid temperature is set to be higher than wax deposition temperature, It prevents wax to be precipitated, plays the role of wax control, external heat source, less investment do not produce the present invention indoors, can guarantee processing quality.
Description
Technical field
It is the sucker rod for preventing pumpingh well wax deposition the invention belongs to the tool of oil field pumping well, specifically a kind of extraction ground
Hot hollow rod.
Background technique
In oilfield development process, hot cleanout and paraffin removal of oil well is a daily management service job, all due to oil well paraffinication point
More top, whole well sections are often carried out hot wash by normal wax removal operation, and hot clean-up well segment length, heat loss is big, hot wash liquid measure
Greatly, longevity of service, well washing effect is poor, and well-flushing liquid is easy to happen leakage polluted reservoir, and oil well output is caused to reduce, sternly
Needing to carry out breaking block treatment and capable of just returning to normal production for weight, causes the waste of human and material resources, financial resources, well rod heat tracing
It is also the production needs in oil field.
According to above-mentioned problem, technical staff has developed superconductive heat transfer paraffin-removal sucker rod for paraffin-troubled well wax control.
Such as Chinese patent application 201110254428.5 " underground heat superconductive heat transfer paraffin-removal sucker rod ", this wax control sucker rod has double-deck true
Cavity, the both ends of double-layer vacuum chamber are connection, the oil pumping after upper 100 sucker rod G.I.Hs in well head to tripping in such as need
Superconduction injection body is filled in the cavity of bar, and top is sealed after having filled superconductive liquid.These work carry out at the scene,
Implement it is highly difficult, it is different surely to reach quality requirement, cause heating effect bad；This technology another problem is that need on
The connecting portion sealing of 100 sucker rods, misses if any one of connection screw thread, is poured into well liquid in entire roofbolt, lose heat transfer
Function.
Summary of the invention
The object of the present invention is to provide a kind of extraction underground heat hollow rod, under in the wax deposition section of pumpingh well, to well liquid plus
Heat prevents wax to be precipitated, and can overcome the problems, such as above-mentioned, saving human and material resources, avoids generating oil reservoir and pollute.
The object of the present invention is achieved like this: including top connection, hollow rod body, lower contact, the lower end of top connection and sky
The upper end of core bar body connects, and the lower end of hollow rod body and the upper end of lower contact connect, and screw thread on sucker rod is arranged at the top of top connection,
Screw thread under sucker rod is arranged at the lower part of lower contact, and screw thread matches with screw thread under the sucker rod on the sucker rod, hollow stem
There is through-hole in the inside of body, there is injection hole in lower contact, and the injection hole is communicated with the through-hole, through the injection hole to
After injecting superconducting fluid in the through-hole, the injection hole is sealed by plugging mechanism, makes superconducting fluid in the through-hole not
It can leakage.
On the axis of lower contact, the plugging mechanism includes filling seal, silk plug at the center of the injection hole,
Filling seal is in the inner end of the injection hole, and silk plug is connect with the internal screw thread of lower contact lower part, will fill seal pressure
System is in the injection hole.
The beneficial effects of the present invention are: the present invention injects superconductive liquid after through-hole is evacuated, vacuum tube superconduction is utilized
Heat-transfer mechanism extracts well temperature for superconductive liquid and heats vaporization, formation temperature passed to whole hollow rod body rapidly, by sucker rod
Junction (rapid heat transfer processing) is simultaneously transmitted upwards in turn, so that entire roofbolt is released heat by the tube wall of the body of rod, is heated well liquid,
So that well liquid temperature is higher than wax deposition temperature, wax is prevented to be precipitated, plays the role of wax control, the present invention not external heat source, less investment, this hair
It is bright to produce indoors, can guarantee processing quality, can use reliably and with long-term, compared with prior art, have it is at low cost, high-quality,
Stratum, advantage easy to implement, using effect is good are not polluted.
Detailed description of the invention
Attached drawing 1 is the installation diagram of the embodiment of the present invention.
Specific embodiment
1 pair of the embodiment of the present invention is illustrated with reference to the accompanying drawing.
The embodiment of the present invention as shown in Figure 1 includes top connection 1, hollow rod body 2, lower contact 4, the lower end of top connection 1 with
The upper end of hollow rod body 2 connects, and the lower end of hollow rod body 2 is connect with the upper end of lower contact 4, and sucker rod is arranged at the top of top connection 1
Upper screw thread 1-1(hollow rod or solid sucker rod screw thread), the hollow oil pumping of screw thread 4-2(under sucker rod is arranged at the lower part of lower contact 4
Bar or solid sucker rod screw thread), screw thread 4-2 matches under screw thread 1-1 and the sucker rod on the sucker rod, hollow rod body
There is through-hole 3 in 2 inside, has injection hole 4-1 in lower contact 4, the injection hole 4-1 is communicated with the through-hole 3, through described
To after the inner injection superconducting fluid of through-hole 3, the injection hole 4-1 is sealed injection hole 4-1 by plugging mechanism, is made described logical
Superconducting fluid in hole 3 cannot leak outside.The amount for the superconductive liquid being filled in the through-hole 3 is the 15-25% of the volume of through-hole 3.Institute
It before the superconductive liquid being filled in the through-hole 3 stated, is evacuated with vacuum pump, then fills superconductive liquid rapidly, then fill
Note filling seal, makes its sealing.The lower part of top connection 1 is obstructed, makes the closed upper part of the through-hole 3.
The center of the injection hole 4-1 on the axis of lower contact 4, the plugging mechanism include filling seal 5,
Silk plug 6, filling seal 5 are in the inner end of the injection hole 4-1, and silk plug 6 is connect with the internal screw thread of 4 lower part of lower contact, will
Filling seal 5 is compressed in the injection hole 4-1.
Screw thread 1-1 and screw thread 4-2 under the sucker rod matches on the sucker rod, allows to connect on roofbolt
The radical needed reaches wax deposition section.
Length of the invention is identical as the length of common hollow rod, under under the wax deposition section of oil well certain well section,
Generally in well head between 1000m, total radical 100 or so.
Using vacuum tube superconductive heat transfer mechanism, superconductive liquid is heated by well temperature and is vaporized, rapidly passes to formation temperature
Whole hollow rod body releases heat by the tube wall of the body of rod, heats well liquid, well liquid temperature is made to be higher than wax deposition temperature.
The connection of the upper end of the lower end and hollow rod body 2 of top connection 1 is friction welding (FW), the lower end of hollow rod body 2 and lower contact 4
Upper end connection be friction welding (FW).
Present invention may also apply to heat tracing oil recoveries, drop to viscous crude derrick design glutinous.
Claims (2)
1. a kind of extraction underground heat hollow rod, including top connection (1), hollow rod body (2), lower contact (4), top connection (1)
Lower end is connect with the upper end of hollow rod body (2), and the lower end of hollow rod body (2) is connect with the upper end of lower contact (4), top connection (1)
Top have screw thread on sucker rod (1-1), the lower part of lower contact (4) has screw thread under sucker rod (4-2), spiral shell on the sucker rod
Screw thread (4-2) matches under line (1-1) and the sucker rod, and the inside of hollow rod body (2) has through-hole (3), it is characterized in that: under connect
Have injection hole (4-1) on head (4), the injection hole (4-1) is communicated with the through-hole (3), through the injection hole (4-1)
To after the inner injection superconducting fluid of through-hole (3), the injection hole (4-1) is sealed by plugging mechanism, makes the through-hole (3)
In superconducting fluid cannot leak outside.
2. extraction underground heat hollow rod according to claim 1, it is characterized in that: the center of the injection hole (4-1)
On the axis of lower contact (4), the plugging mechanism includes filling seal (5), silk plug (6), and filling seal (5) is in
The inner end of the injection hole (4-1), silk plug (6) are connect with the internal screw thread of lower contact (4) lower part, by filling seal (5) pressure
It makes inner in the injection hole (4-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811238302.7A CN109138855A (en) | 2018-10-23 | 2018-10-23 | Extract underground heat hollow rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811238302.7A CN109138855A (en) | 2018-10-23 | 2018-10-23 | Extract underground heat hollow rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109138855A true CN109138855A (en) | 2019-01-04 |
Family
ID=64809160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811238302.7A Pending CN109138855A (en) | 2018-10-23 | 2018-10-23 | Extract underground heat hollow rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109138855A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110388184A (en) * | 2019-08-23 | 2019-10-29 | 张红卫 | A kind of continuous hollow stem extracting underground heat |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2510621Y (en) * | 2001-12-26 | 2002-09-11 | 王钢 | Oil-well self-heat-source supercojnducting paraffin-preventing and viscosity-reducing apparatus |
| US20040113427A1 (en) * | 1999-12-03 | 2004-06-17 | Ernst Hugo A. | Assembly of hollow torque transmitting sucker rods and sealing nipple with improved seal and fluid flow |
| CN102322223A (en) * | 2011-08-31 | 2012-01-18 | 中国石油天然气股份有限公司 | Geothermal heat superconducting heat-transferring wax eliminating and preventing sucker rod |
| CN103470195A (en) * | 2013-10-08 | 2013-12-25 | 刘铁 | High-temperature resisting and high-pressure resisting injecting and extracting integrated double-layer hollow sucker rod |
| CN103541664A (en) * | 2013-09-27 | 2014-01-29 | 中国石油化工股份有限公司 | Hydraulic feedback type sucker rod weighting device |
| CN105386733A (en) * | 2015-11-25 | 2016-03-09 | 中国石油天然气股份有限公司 | Cleaning device for workover operation oil tube and oil sucker rod well mouth |
| CN105649548A (en) * | 2015-12-28 | 2016-06-08 | 中国石油天然气股份有限公司 | Bypass nipple joint, downhole drilling tool, and seepage plugging method or jam releasing method of downhole drilling tool |
| CN208934609U (en) * | 2018-10-23 | 2019-06-04 | 董刚 | Extract underground heat hollow rod |
-
2018
- 2018-10-23 CN CN201811238302.7A patent/CN109138855A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040113427A1 (en) * | 1999-12-03 | 2004-06-17 | Ernst Hugo A. | Assembly of hollow torque transmitting sucker rods and sealing nipple with improved seal and fluid flow |
| CN2510621Y (en) * | 2001-12-26 | 2002-09-11 | 王钢 | Oil-well self-heat-source supercojnducting paraffin-preventing and viscosity-reducing apparatus |
| CN102322223A (en) * | 2011-08-31 | 2012-01-18 | 中国石油天然气股份有限公司 | Geothermal heat superconducting heat-transferring wax eliminating and preventing sucker rod |
| CN103541664A (en) * | 2013-09-27 | 2014-01-29 | 中国石油化工股份有限公司 | Hydraulic feedback type sucker rod weighting device |
| CN103470195A (en) * | 2013-10-08 | 2013-12-25 | 刘铁 | High-temperature resisting and high-pressure resisting injecting and extracting integrated double-layer hollow sucker rod |
| CN105386733A (en) * | 2015-11-25 | 2016-03-09 | 中国石油天然气股份有限公司 | Cleaning device for workover operation oil tube and oil sucker rod well mouth |
| CN105649548A (en) * | 2015-12-28 | 2016-06-08 | 中国石油天然气股份有限公司 | Bypass nipple joint, downhole drilling tool, and seepage plugging method or jam releasing method of downhole drilling tool |
| CN208934609U (en) * | 2018-10-23 | 2019-06-04 | 董刚 | Extract underground heat hollow rod |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110388184A (en) * | 2019-08-23 | 2019-10-29 | 张红卫 | A kind of continuous hollow stem extracting underground heat |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |