CN110388184A - A kind of continuous hollow stem extracting underground heat - Google Patents
A kind of continuous hollow stem extracting underground heat Download PDFInfo
- Publication number
- CN110388184A CN110388184A CN201910786741.XA CN201910786741A CN110388184A CN 110388184 A CN110388184 A CN 110388184A CN 201910786741 A CN201910786741 A CN 201910786741A CN 110388184 A CN110388184 A CN 110388184A
- Authority
- CN
- China
- Prior art keywords
- rod body
- hollow rod
- hole
- connection
- injection hole
- 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
- 244000273618 Sphenoclea zeylanica Species 0.000 title claims abstract description 10
- 238000002347 injection Methods 0.000 claims abstract description 26
- 239000007924 injection Substances 0.000 claims abstract description 26
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 abstract description 10
- 230000008021 deposition Effects 0.000 abstract description 7
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 238000009834 vaporization Methods 0.000 abstract description 2
- 230000008016 vaporization Effects 0.000 abstract description 2
- 239000001993 wax Substances 0.000 description 12
- 239000003129 oil well Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000005484 gravity Effects 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
- 239000000126 substance Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
-
- 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
- E21B37/00—Methods or apparatus for cleaning boreholes or wells
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
A kind of continuous hollow stem extracting underground heat, the lower end of top connection and the upper end of hollow rod body connect, junction keeps sealing, the lower end of hollow rod body and the upper end of lower contact connect, junction keeps sealing, the lower end of hollow rod body is closed after the lower end of hollow rod body and the upper end connection of lower contact, lower connection screw thread is arranged at the lower part of lower contact, there is through-hole in the inside of hollow rod body, upper connection screw thread is arranged at the top of top connection, there is injection hole in top connection, the injection hole is communicated with the through-hole, through the injection hole to injection working medium in the through-hole and after being evacuated, the injection hole is sealed by plugging mechanism, prevent the working medium in the through-hole from leaking outside, the length of hollow rod body is greater than 800m, the outer diameter of top connection is equal to or less than the outer diameter of hollow rod body, well temperature on hollow rod body bottom can be extracted by work Matter heating vaporization, the well liquid on wax deposition point is heated, so that its well liquid temperature is higher than wax deposition temperature, wax is prevented to be precipitated.
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
The continuous hollow stem of heat.
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.
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 working medium.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 needing 100
The connecting portion of sucker rod seals, and misses if any one of connection screw thread, is poured into well liquid in entire roofbolt, lose the function of heat transfer
Energy.
Summary of the invention
The object of the present invention is to provide it is a kind of extract underground heat continuous hollow stem, under in the wax deposition section of pumpingh well, to well liquid
Heating 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 junction keeps sealing, and the lower end of hollow rod body and the upper end of lower contact connect, and junction keeps close
It is closed the lower end of hollow rod body after envelope, the lower end of hollow rod body and the upper end connection of lower contact, the inside of hollow rod body has
Upper connection screw thread is arranged at through-hole, the top of top connection, there is injection hole in top connection, and the injection hole is communicated with the through-hole,
Through the injection hole to injecting in the through-holeWorking mediumAnd after being evacuated, the injection hole is sealed by plugging mechanism,
Make in the through-hole 4Working mediumOn space remain that vacuum state, hollow rod body are continuous lever, length is greater than
800m。
The plugging mechanism, including silk plug, filling seal, filling seal are in the inner end of the injection hole,
Silk plug is threadedly coupled with the top of top connection, will be filled seal and is compressed in the injection hole.
The beneficial effects of the present invention are: being evacuated after via through holes injection working medium of the present invention, its present invention is made to become gravity
Heat pipe can extract the well temperature on hollow rod body bottom and working medium is heated vaporization, because hollow according to heat pipe principle heat-transfer mechanism
The length of the body of rod is greater than 800m, can heat the well liquid on wax deposition point, so that its well liquid temperature is higher than wax deposition temperature, prevents wax
It is precipitated, plays the role of wax control, external heat source, less investment, the present invention do not produce the present invention indoors, can guarantee processing quality, energy
Use reliably and with long-term, compared with prior art, have it is at low cost, high-quality, do not pollute stratum, be easy to implement, using effect it is good
The advantages of.
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 3, hollow rod body 5, lower contact 6, the lower end of top connection 3 with
The upper end of hollow rod body 5 connects, and junction keeps sealing, and the lower end of hollow rod body 5 is connect with the upper end of lower contact 6, junction
Sealing is kept, the lower end of hollow rod body 5 is closed the lower end of hollow rod body 5 after connecting with the upper end of lower contact 6, lower contact 6
Lower part have lower connection screw thread 6-1, there is through-hole 4 in the inside of hollow rod body 5, and upper connection screw thread 3-1 is arranged at the top of top connection 3, on
There are injection hole 3-2, the injection hole 3-2 to communicate on connector 3 with the through-hole 4, through the injection hole 3-2 to described
The inner injection of through-hole 4Working mediumAnd after being evacuated (Working mediumFor the 15%-25% of 4 volume of through-hole,Working mediumLower part in through-hole 4, through-hole
4 remaining volume is evacuated), the injection hole 3-2 is sealed by plugging mechanism, is made in the through-hole 4Working mediumOn
Space remain vacuum state, it is consecutive hollow sucker rod that hollow rod body, which is whole continuous lever, and length is greater than 800m,
The outer diameter of top connection 3 is equal to or less than the outer diameter of hollow rod body 5.
The plugging mechanism, including silk plug 1, filling seal 2, filling seal 2 are in the injection hole 3-2's
Inner end, silk plug 1 are threadedly coupled with the top of top connection 3, will be filled seal 2 and are compressed in the injection hole 3-2, can make
In the through-hole 4Working mediumOn space remain vacuum state.
The upper connection screw thread 3-1 on 3 top of top connection is used to hang weight of the invention or promotes roofbolt.The upper connection being arranged
Screw thread 3-1 enables the invention to the wax removal applied to oil flow production well.The lower connection screw thread 6-1 of 6 lower part of lower contact takes out for connecting
Beam hanger or oil pump piston.Lower part such as the present invention for flowing well lower contact 6 can not set connection screw thread 6-1.The present invention
When for pumpingh well, play sucker rod.
The length of hollow rod body 5 in the present invention is greater than 800m, is continuous hollow stem (centre does not have connector).Of the invention
Using consecutive hollow sucker rod is widely used more in oil extraction in oil field.
The present invention utilize heat pipe principle, by well temperature by working medium heat vaporize, rapidly by formation temperature pass to whole it is hollow
The body of rod 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.
Top connection 3, hollow rod body 5, lower contact 6 connection be generally friction welding (FW).
The outer diameter that the outer diameter of top connection 3 is equal to or less than hollow rod body 5 is in order to pass through wellhead sealing device.Such as this
Invention is used for flowing well, and well head does not fill sealer, and the outer diameter of top connection 3 can be greater than the outer diameter of hollow rod body 5.
Since oil well paraffinication point on 800m, so the length of hollow rod body 5 is greater than 800m, is generally set generally in well
1000m is calculated as to 1600m.
" working medium " in the present invention refers to medium signified in hot pipe technique, at " heat exchange of heat pipe energy-conserving and emission-cutting technology "
The description as described in working medium can be found in (in May, 2015 is published by Chemical Industry Press) book.
Claims (4)
1. a kind of continuous hollow stem for extracting underground heat, including top connection (3), hollow rod body (5), lower contact (6), top connection (3)
Lower end connect with the upper end of hollow rod body (5), junction keeps sealing, and the lower end of hollow rod body (5) is upper with lower contact (6)
End connection, junction keep sealing, and the lower end of hollow rod body (5) makes hollow rod body (5) after connecting with the upper end of lower contact (6)
Lower end is closed, and the inside of hollow rod body (5) has through-hole (4), and upper connection screw thread (3-1), feature are arranged at the top of top connection (3)
It is: has in top connection (3) injection hole (3-2), the injection hole (3-2) is communicated with the through-hole (4), through the injection
The through-hole (4) of hole (3-2) Xiang Suoshu is inner to be injectedWorking mediumAnd after being evacuated, the injection hole (3-2) is sealed by plugging mechanism,
Make in the through-hole 4Working mediumOn space remain vacuum state, hollow rod body (5) is continuous lever, and length is big
In 800m.
2. a kind of continuous hollow stem for extracting underground heat according to claim 1, it is characterized in that: the plugging mechanism, packet
Include silk plug (1), filling seal (2), filling seal (2) is in the inner end of the injection hole (3-2), silk plug (1) with it is upper
The top of connector (3) is threadedly coupled, and filling seal (2), to be compressed on the injection hole (3-2) inner.
3. a kind of continuous hollow stem for extracting underground heat according to claim 2, it is characterized in that: the lower part of lower contact (6) has
Lower connection screw thread (6-1).
4. a kind of continuous hollow stem for extracting underground heat according to claim 2, it is characterized in that: the outer diameter etc. of top connection (3)
In or be less than hollow rod body (5) outer diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910786741.XA CN110388184A (en) | 2019-08-23 | 2019-08-23 | A kind of continuous hollow stem extracting underground heat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910786741.XA CN110388184A (en) | 2019-08-23 | 2019-08-23 | A kind of continuous hollow stem extracting underground heat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110388184A true CN110388184A (en) | 2019-10-29 |
Family
ID=68289163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910786741.XA Pending CN110388184A (en) | 2019-08-23 | 2019-08-23 | A kind of continuous hollow stem extracting underground heat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110388184A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020157832A1 (en) * | 2001-04-30 | 2002-10-31 | Prasad Raj K. | Method and apparatus for reducing paraffin and asphaltene deposits in pumping oil wells |
| CN2851507Y (en) * | 2005-12-14 | 2006-12-27 | 张建民 | Heat-conductive coiled sucker rod |
| CN101666221A (en) * | 2009-10-20 | 2010-03-10 | 敫铁拴 | Oil well geothermal self-energy wax-proofing device |
| CN201915852U (en) * | 2010-12-23 | 2011-08-03 | 中国石油天然气股份有限公司 | Oil pumping string for high wax content oil well |
| 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 |
| CN109113588A (en) * | 2018-10-23 | 2019-01-01 | 董刚 | A kind of extraction underground heat hollow rod |
| CN109138855A (en) * | 2018-10-23 | 2019-01-04 | 董刚 | Extract underground heat hollow rod |
| CN210509068U (en) * | 2019-08-23 | 2020-05-12 | 张红卫 | Continuous hollow rod for extracting terrestrial heat |
-
2019
- 2019-08-23 CN CN201910786741.XA patent/CN110388184A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020157832A1 (en) * | 2001-04-30 | 2002-10-31 | Prasad Raj K. | Method and apparatus for reducing paraffin and asphaltene deposits in pumping oil wells |
| CN2851507Y (en) * | 2005-12-14 | 2006-12-27 | 张建民 | Heat-conductive coiled sucker rod |
| CN101666221A (en) * | 2009-10-20 | 2010-03-10 | 敫铁拴 | Oil well geothermal self-energy wax-proofing device |
| CN201915852U (en) * | 2010-12-23 | 2011-08-03 | 中国石油天然气股份有限公司 | Oil pumping string for high wax content oil well |
| 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 |
| CN109113588A (en) * | 2018-10-23 | 2019-01-01 | 董刚 | A kind of extraction underground heat hollow rod |
| CN109138855A (en) * | 2018-10-23 | 2019-01-04 | 董刚 | Extract underground heat hollow rod |
| CN210509068U (en) * | 2019-08-23 | 2020-05-12 | 张红卫 | Continuous hollow rod for extracting terrestrial heat |
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