CN107420068A - A kind of high temperature nitrogen paraffin removal unit and wax removal technique - Google Patents
A kind of high temperature nitrogen paraffin removal unit and wax removal technique Download PDFInfo
- Publication number
- CN107420068A CN107420068A CN201610349763.6A CN201610349763A CN107420068A CN 107420068 A CN107420068 A CN 107420068A CN 201610349763 A CN201610349763 A CN 201610349763A CN 107420068 A CN107420068 A CN 107420068A
- Authority
- CN
- China
- Prior art keywords
- nitrogen
- wax
- oil
- firing equipment
- high temperature
- 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
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 243
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 120
- 239000001993 wax Substances 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000012188 paraffin wax Substances 0.000 title claims abstract description 12
- 238000010304 firing Methods 0.000 claims abstract description 33
- 239000003129 oil well Substances 0.000 claims abstract description 23
- 238000002347 injection Methods 0.000 claims description 12
- 239000007924 injection Substances 0.000 claims description 12
- 230000008021 deposition Effects 0.000 claims description 7
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 2
- 238000003306 harvesting Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 8
- 238000011084 recovery Methods 0.000 abstract description 7
- 239000003921 oil Substances 0.000 description 29
- 238000005516 engineering process Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002199 base oil Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000000926 separation method 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
- E21B37/00—Methods or apparatus for cleaning boreholes or wells
-
- 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
- E21B36/00—Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (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)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The invention discloses a kind of high temperature nitrogen paraffin removal unit and wax removal technique, including nitrogen supercharging equipment processed, nitrogen firing equipment, oil well pump, nitrogen supercharging equipment processed is connected by connecting manifold with nitrogen firing equipment, nitrogen firing equipment is connected by HTHP nitrogen pipeline with the oil well casing entrance of clean-out service, oil well pump is arranged on oil pipe one end in oil well casing, structural principle of the present invention is simple, bulk oil of the hot nitrogen shaft bottom oil reservoir can be utilized, toughening oil all gathers out, the drawbacks of having evaded on original oil recovery technique, reduce tradition harvesting cost, the optimum effect that volume increase times is received can be reached.
Description
Technical field
The present invention relates to nitrogen wax removal block releasing technique field, specially a kind of high temperature nitrogen paraffin removal unit and wax removal technique.
Background technology
In the market existing product is conventional nitrogen-supercharging equipment processed, by membrane separation process, obtains purity 95%-99% nitrogen, warp
Piston type compressor boost is crossed, pressure classification is risen into 25MPa-50MPa or so, the nitrogen that temperature is about 35 DEG C -50 DEG C is noted
Enter stratum, improve stratum energy.However, the nitrogen temperature of conventional high-pressure nitrogen compressor output is about 35 DEG C -50 DEG C, contained heat
Amount is few, and increase stratum energy can only be played to oil reservoir or coordinates other techniques（Profile control, mixing etc.）Effect, it is serious to the content of wax
Analysis wax, wax deposition phenomenon be present, need badly and take wax removal measure in oil field block, oil pipe.
The content of the invention
It is an object of the invention to provide a kind of high temperature nitrogen paraffin removal unit and wax removal technique, to solve above-mentioned background technology
The problem of middle proposition.
To achieve the above object, the present invention provides following technical scheme：A kind of high temperature nitrogen paraffin removal unit, including nitrogen processed
Supercharging equipment, nitrogen firing equipment, oil well pump, the nitrogen supercharging equipment processed are connected by connecting manifold with nitrogen firing equipment,
The nitrogen firing equipment is connected by HTHP nitrogen pipeline with the oil well casing entrance of clean-out service, and the oil well pump is set
Put oil pipe one end in oil well casing.
Preferably, including nitrogen supercharging equipment processed, nitrogen firing equipment, Operation Tubing Aggregate capstan winch, the nitrogen supercharging equipment processed
It is connected by connecting manifold with nitrogen firing equipment, the nitrogen firing equipment is connected with Operation Tubing Aggregate capstan winch, the company
Continuous oil pipe car capstan winch is connected through well head injection head with coiled tubing.
Preferably, wax removal technique comprises the following steps：
A, it is connected by connecting manifold and exporting nitrogen firing equipment with nitrogen supercharging equipment processed；
B, the high pressure nitrogen that pressure is 10~35MPa is made in nitrogen supercharging equipment processed；
C, high pressure nitrogen is heated to 220 DEG C -330 DEG C by nitrogen firing equipment；
D, HTHP nitrogen enters in oil pipe through wellhead assembly, while pump work of pumping, high directly by annular space inverse injection
Warm high pressure nitrogen reaches wax deposition point by oil well pump；
E, now the temperature of nitrogen is more than the set point of wax, and wax is melted by high temperature nitrogen with producing well, completes counter clears
Wash operation process.
Preferably, wax removal technique comprises the following steps：
A, it is connected by connecting manifold and exporting nitrogen firing equipment with nitrogen supercharging equipment processed；
B, the high pressure nitrogen that pressure is 10~35MPa is made in nitrogen supercharging equipment processed；
C, high pressure nitrogen is heated to 220 DEG C -330 DEG C by nitrogen firing equipment；
D, HTHP nitrogen is led to below oil well paraffinication point through well head injection head by coiled tubing；
E, now the temperature of high pressure nitrogen is more than the set point temperature of wax, and high temperature nitrogen flows out from coiled tubing, by oil pipe
Wax deposition point, wax are melted by high temperature nitrogen with producing well, complete positive injection wax removal operation process.
Compared with prior art, the beneficial effects of the invention are as follows：Structural principle of the present invention is simple, can utilize hot nitrogen well
Bulk oil, the toughening oil of base oil layer all gather out, using hot nitrogen technology, can reach other in work progress and any help
The harvesting effect that the measure of adopting can not be realized, the viscous crude of individual well near wellbore zone, dead oil can fully be harvested to utilization, it is truly evident
The maximum value of 2 times, 3 times oil recoveries is shown, the drawbacks of having evaded on original oil recovery technique, has reduced tradition harvesting cost, can reach
The optimum effect received to volume increase times.
Brief description of the drawings
Fig. 1 is the structural representation of embodiments of the invention one；
Fig. 2 is the structural representation of embodiments of the invention two.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Embodiment one:
Referring to Fig. 1, the present invention provides a kind of technical scheme：A kind of high temperature nitrogen paraffin removal unit, including nitrogen supercharging equipment 1 processed,
Nitrogen firing equipment 2, oil well pump 3, the nitrogen supercharging equipment 1 processed are connected by connecting manifold with nitrogen firing equipment 2, the nitrogen
Gas firing equipment 2 is connected by HTHP nitrogen pipeline with the entrance of oil well casing 4 of clean-out service, and the oil well pump 3 is set
One end of oil pipe 5 in oil well casing 4.
In the present embodiment, wax removal technique comprises the following steps：
A, it is connected by connecting manifold and exporting nitrogen firing equipment 2 with nitrogen supercharging equipment 1 processed；
B, the high pressure nitrogen that pressure is 10~35MPa is made in nitrogen supercharging equipment 1 processed；
C, high pressure nitrogen is heated to 220 DEG C -330 DEG C by nitrogen firing equipment 2；
D, HTHP nitrogen enters in oil pipe 5 through wellhead assembly, while oil well pump 3 works, directly by annular space inverse injection,
HTHP nitrogen reaches wax deposition point by oil well pump 3；
E, now the temperature of nitrogen is more than the set point of wax, and wax is melted by high temperature nitrogen with producing well, completes counter clears
Wash operation process.
The present invention can utilize hot nitrogen that bulk oil, the toughening oil of shaft bottom oil reservoir all are gathered out, using hot nitrogen technology,
Other any harvesting effects for helping the measure of adopting not realize can be reached in work progress, can be by the thick of individual well near wellbore zone
Oil, dead oil fully harvest utilization, have truly shown the maximum value of 2 times, 3 times oil recoveries, have evaded original oil recovery technique
The drawbacks of upper, tradition harvesting cost was reduced, the optimum effect that volume increase times is received can be reached.
Embodiment two：
Referring to Fig. 2, the present invention provides a kind of technical scheme：A kind of high temperature nitrogen paraffin removal unit, including nitrogen supercharging equipment 1 processed,
Nitrogen firing equipment 2, Operation Tubing Aggregate capstan winch 6, the nitrogen supercharging equipment 1 processed is by connecting manifold and the phase of nitrogen firing equipment 2
Even, the nitrogen firing equipment 2 is connected with Operation Tubing Aggregate capstan winch 6, and the Operation Tubing Aggregate capstan winch 6 passes through well head injection head
7 are connected with coiled tubing 8.
In the present embodiment, wax removal technique comprises the following steps：
A, it is connected by connecting manifold and exporting nitrogen firing equipment 2 with nitrogen supercharging equipment 1 processed；
B, the high pressure nitrogen that pressure is 10~35MPa is made in nitrogen supercharging equipment 1 processed；
C, high pressure nitrogen is heated to 220 DEG C -330 DEG C by nitrogen firing equipment 2；
D, HTHP nitrogen is led to below oil well paraffinication point through well head injection head 7 by coiled tubing 8；
E, now the temperature of high pressure nitrogen is more than the set point temperature of wax, and high temperature nitrogen flows out from coiled tubing 8, by oil pipe
Wax deposition point, wax are melted by high temperature nitrogen with producing well, complete positive injection wax removal operation process.
The present invention can utilize hot nitrogen that bulk oil, the toughening oil of shaft bottom oil reservoir all are gathered out, using hot nitrogen technology,
Other any harvesting effects for helping the measure of adopting not realize can be reached in work progress, can be by the thick of individual well near wellbore zone
Oil, dead oil fully harvest utilization, have truly shown the maximum value of 2 times, 3 times oil recoveries, have evaded original oil recovery technique
The drawbacks of upper, tradition harvesting cost was reduced, the optimum effect that volume increase times is received can be reached.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (4)
1. a kind of high temperature nitrogen paraffin removal unit, including nitrogen supercharging equipment processed, nitrogen firing equipment, oil well pump, it is characterised in that：
The nitrogen supercharging equipment processed is connected by connecting manifold with nitrogen firing equipment, and the nitrogen firing equipment passes through HTHP nitrogen
Gas pipeline is connected with the oil well casing entrance of clean-out service, and the oil well pump is arranged on oil pipe one end in oil well casing.
A kind of 2. high temperature nitrogen paraffin removal unit according to claim 1, it is characterised in that：Including nitrogen supercharging equipment processed, nitrogen
Gas firing equipment, Operation Tubing Aggregate capstan winch, the nitrogen supercharging equipment processed is connected by connecting manifold with nitrogen firing equipment, described
Nitrogen firing equipment is connected with Operation Tubing Aggregate capstan winch, and the Operation Tubing Aggregate capstan winch passes through well head injection head and coiled tubing
It is connected.
3. realize a kind of wax removal technique of high temperature nitrogen paraffin removal unit described in claim 1, it is characterised in that：Wax removal technique bag
Include following steps：
A, it is connected by connecting manifold and exporting nitrogen firing equipment with nitrogen supercharging equipment processed；
B, the high pressure nitrogen that pressure is 10~35MPa is made in nitrogen supercharging equipment processed；
C, high pressure nitrogen is heated to 220 DEG C -330 DEG C by nitrogen firing equipment；
D, HTHP nitrogen enters in oil pipe through wellhead assembly, while pump work of pumping, high directly by annular space inverse injection
Warm high pressure nitrogen reaches wax deposition point by oil well pump；
E, now the temperature of nitrogen is more than the set point of wax, and wax is melted by high temperature nitrogen with producing well, completes counter clears
Wash operation process.
4. realize a kind of wax removal technique of high temperature nitrogen paraffin removal unit described in claim 2, it is characterised in that：Wax removal technique bag
Include following steps：
A, it is connected by connecting manifold and exporting nitrogen firing equipment with nitrogen supercharging equipment processed；
B, the high pressure nitrogen that pressure is 10~35MPa is made in nitrogen supercharging equipment processed；
C, high pressure nitrogen is heated to 220 DEG C -330 DEG C by nitrogen firing equipment；
D, HTHP nitrogen is led to below oil well paraffinication point through well head injection head by coiled tubing；
E, now the temperature of high pressure nitrogen is more than the set point temperature of wax, and high temperature nitrogen flows out from coiled tubing, by oil pipe
Wax deposition point, wax are melted by high temperature nitrogen with producing well, complete positive injection wax removal operation process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610349763.6A CN107420068A (en) | 2016-05-24 | 2016-05-24 | A kind of high temperature nitrogen paraffin removal unit and wax removal technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610349763.6A CN107420068A (en) | 2016-05-24 | 2016-05-24 | A kind of high temperature nitrogen paraffin removal unit and wax removal technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107420068A true CN107420068A (en) | 2017-12-01 |
Family
ID=60422612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610349763.6A Pending CN107420068A (en) | 2016-05-24 | 2016-05-24 | A kind of high temperature nitrogen paraffin removal unit and wax removal technique |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107420068A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114000851A (en) * | 2021-12-30 | 2022-02-01 | 山东泉益环保科技有限公司 | Pollution-free high-temperature nitrogen cleaning operation device for pumping well |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3930539A (en) * | 1975-05-08 | 1976-01-06 | Curtis Arvel C | Method of obtaining increased production in wells |
| CN103821470A (en) * | 2014-03-19 | 2014-05-28 | 盘锦新科工贸有限公司 | Oil well hot nitrogen injection well washing technological method and system |
| CN103967447A (en) * | 2014-05-27 | 2014-08-06 | 中国海洋石油总公司 | Method for removing paraffin blocking oil pipe |
| CN104895542A (en) * | 2015-06-17 | 2015-09-09 | 克拉玛依市昶禾科技有限公司 | Nitrogen heat energy oil production device and oil production method |
-
2016
- 2016-05-24 CN CN201610349763.6A patent/CN107420068A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3930539A (en) * | 1975-05-08 | 1976-01-06 | Curtis Arvel C | Method of obtaining increased production in wells |
| CN103821470A (en) * | 2014-03-19 | 2014-05-28 | 盘锦新科工贸有限公司 | Oil well hot nitrogen injection well washing technological method and system |
| CN103967447A (en) * | 2014-05-27 | 2014-08-06 | 中国海洋石油总公司 | Method for removing paraffin blocking oil pipe |
| CN104895542A (en) * | 2015-06-17 | 2015-09-09 | 克拉玛依市昶禾科技有限公司 | Nitrogen heat energy oil production device and oil production method |
Non-Patent Citations (1)
| Title |
|---|
| 江汉机械研究所: "《连续油管作业技术文集》", 28 March 1998 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114000851A (en) * | 2021-12-30 | 2022-02-01 | 山东泉益环保科技有限公司 | Pollution-free high-temperature nitrogen cleaning operation device for pumping well |
| CN114000851B (en) * | 2021-12-30 | 2022-04-08 | 山东泉益环保科技有限公司 | Pollution-free high-temperature nitrogen cleaning operation device for pumping well |
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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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171201 |