CN104373093A - Underground nitrogen-making induced flow completion pipe string having pressure monitoring function - Google Patents
Underground nitrogen-making induced flow completion pipe string having pressure monitoring function Download PDFInfo
- Publication number
- CN104373093A CN104373093A CN201410474378.5A CN201410474378A CN104373093A CN 104373093 A CN104373093 A CN 104373093A CN 201410474378 A CN201410474378 A CN 201410474378A CN 104373093 A CN104373093 A CN 104373093A
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- CN
- China
- Prior art keywords
- induced flow
- nitrogen
- oil pipe
- underground
- pipe
- 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
- 238000012544 monitoring process Methods 0.000 title claims abstract description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 72
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 35
- 238000007789 sealing Methods 0.000 claims abstract description 34
- 238000004519 manufacturing process Methods 0.000 claims abstract description 19
- 239000003129 oil well Substances 0.000 claims abstract description 10
- 239000004576 sand Substances 0.000 claims abstract description 8
- 239000003999 initiator Substances 0.000 claims description 17
- 238000010304 firing Methods 0.000 claims description 9
- 238000003780 insertion Methods 0.000 claims description 9
- 230000037431 insertion Effects 0.000 claims description 9
- 210000002445 nipple Anatomy 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 21
- 241000191291 Abies alba Species 0.000 abstract description 4
- 230000007774 longterm Effects 0.000 abstract description 3
- 230000005284 excitation Effects 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 3
- 238000005474 detonation Methods 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000008398 formation water Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000003380 propellant Substances 0.000 description 1
- 230000035939 shock Effects 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/01—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells specially adapted for obtaining from underwater installations
-
- 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/166—Injecting a gaseous medium; Injecting a gaseous medium and a liquid medium
- E21B43/168—Injecting a gaseous medium
-
- 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
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
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)
- Geophysics (AREA)
- Pipe Accessories (AREA)
Abstract
The invention discloses an underground nitrogen-making induced flow completion pipe string having a pressure monitoring function. The underground nitrogen-making induced flow completion pipe string is mainly composed of an oil pipe hanging part, an oil pipe, an underground safety valve, an underground pressure meter, a production packer, a working cylinder, an inserting positioning seal, a blind pipe and an underground nitrogen-making induced flow device. The upper end of the oil pipe is hung in an oil well through the oil pipe hanging part. The underground safety valve, the underground pressure meter, the production packer and the working cylinder are arranged on the oil pipe. The lower end of the oil pipe is connected with the blind pipe through the inserting positioning seal which is inserted into a sealing cylinder of a sand control packer in the oil well. The underground nitrogen-making induced flow device is inserted into the blind pipe. Due to adoption of the above structure, after a first safety shield of a gas well is built, a Christmas tree is assembled, and setting and seal examination are carried out on the production packer until the production packer is qualified, a large amount of nitrogen can be rapidly generated through dropbar excitation and the gas well is induced. Besides, in the long-term production process, the underground pressure is monitored in real time. The underground nitrogen-making induced flow completion pipe string has a good application and popularization prospect.
Description
Technical field
The present invention relates to a kind of induced flow completion tubular column, specifically nitrogen induced flow completion tubular column is made in a kind of down-hole.
Background technology
At present, offshore gas well first enters completion tubular column down usually, then carries out induced flow separately, and completion tubular column itself does not possess the function of induced flow.Offshore gas well induced flow adopts coiled tubing nitrogen injection induced flow technology usually.This technology needs to connect on offshore boring island to make nitrogen (liquid nitrogen) equipment and continuous oil pipe device, and implement is many, operation procedure is complicated, the activity duration is long, operating cost is high, there is larger risk simultaneously.In addition, narrow tube nitrogen induced flow technology and multistage gas lift tubing string induced flow technology is still had.Narrow tube nitrogen induced flow technology pluses and minuses are identical with coiled tubing nitrogen injection induced flow technology.Multistage gas lift tubing string induced flow technology is limited by the tightness problem of gas lift valve in long-term production process, and flexibility is simultaneously poor, and application is less at present.
The common problem that current gas well completion tubing string exists is that tubing string itself does not possess induced flow function, needs independent induced flow, and induced flow implement is many, operation procedure is complicated, efficiency is low, cost is high, risk is larger.
There is no the quick induced flow completion tubular column of gas well at present, is below the Patents retrieved.
It is CN201159066Y that State Intellectual Property Office discloses publication number on December 3rd, 2008, and patent name is the patent document of high-pressure oil-gas well test induced flow valve, is applicable to the negative pressure test jobs of various high-pressure oil-gas well.This patent comprises sealing test valve and spool fishery, and the body of fishing for of spool fishery is connected with the valve body of sealing test valve.Use this patent effectively can carry out induced flow to high-pressure oil-gas well, improve the test success rate of Oil/gas Well and can increase work efficiency.Construction is in time, easy to operate, only need by this patent with test string down in well, utilize cementing truck to suppress the operation that can complete and open this induced flow valve, reach the object of induced flow.
It is CN2351548Y that State Intellectual Property Office discloses publication number on December 1st, 1999, patent name is the patent document that nitrogen induced flow device is made in a kind of down-hole, this patent belongs to the downhole tool that oilfield uses, it comprises main body, packing, shear pin, inner sleeve, pipe nipple, overcoat, spring, lower contact composition, this patent is owing to have employed the structure of main body, inner sleeve, spring, it can produce enough negative pressure value near shaft bottom, by utilizing the energy induced flow oil well of well dynamic, improve oil production, reduce oil extraction in oil field cost, improve oilfield economic benefit.Its structure is simple, technique is simple, success rate is high.
It is CN102733787A that State Intellectual Property Office discloses publication number on October 17th, 2012, patent name is the Patent Application Publication of plug-in type coiled tubing induced flow device, present patent application document comprises outer tubing string, coiled tubing, coiled tubing injector, described coiled tubing is sent in outer tubing string by coiled tubing injector, be provided with in described outer tubing string and insert location sealing blind pipe, the described periphery of insertion location sealing blind pipe and the inner circumferential of outer tubing string are sealed and matched, the lower end of described coiled tubing is provided with insertion seal bar, insert seal bar and be provided with the through hole be communicated with coiled tubing vertically, when coiled tubing is sent into precalculated position in outer tubing string downwards by described coiled tubing injector, described insertion seal bar is inserted in sealing blind pipe, the periphery of inserting seal bar is sealed and matched with the inner circumferential inserting location sealing blind pipe.Formation water output when present patent application document can solve oil and gas well testing, major diameter tubing string takes the undesirable problem of liquid effect, also can carry out conventional gaslift induced flow, ask and produce and test, reach the object of one-trip string several functions.
Above-mentioned patent or Patent Application Publication different from the technical scheme of this patent.
Summary of the invention
The object of the invention is to overcome deficiency of the prior art, provide a kind of down-hole with pressure monitoring function to make nitrogen induced flow completion tubular column.
For achieving the above object, the technical solution adopted in the present invention is:
Nitrogen induced flow completion tubular column is made in down-hole with pressure monitoring function, it is primarily of tubing hanger, oil pipe, storm valve, pressure bomb, production packer, insert location sealing, blind pipe, nitrogen induced flow device composition is made in seating nipple and down-hole, wherein, the upper end of described oil pipe is hung in oil well by tubing hanger, storm valve, pressure bomb, production packer and seating nipple are located on oil pipe respectively, the lower end of oil pipe is connected with blind pipe by inserting location sealing, described insertion location sealing is inserted in the sealing drum of the sand control packer in oil well, down-hole is made nitrogen induced flow device and is inserted in blind pipe.
Described down-hole is made nitrogen induced flow device and is formed primarily of igniter head, initiator, detonating primer, detonating fuse, gas-forming agent and shell, described igniter head is located at the top of initiator, initiator is connected with detonating fuse by detonating primer, and gas-forming agent is loaded in the enclosure, is connected with detonating fuse.
Described igniter head adopts firing pin type igniter head, also comprises fire rod, described fire rod, in order to drop into from the upper port of oil pipe in oil pipe and to fall along oil pipe, fire rod clashes into firing pin type igniter head, and the striker impact initiator of firing pin type igniter head, initiator is detonated.
Sealing ring is provided with between described insertion location sealing and the sealing drum of sand control packer; Described sealing ring is provided with two.
Beneficial effect of the present invention: owing to adopting above-mentioned form of structure, the quick induced flow completion tubular column of nitrogen gas well is made in the down-hole of this band pressure monitoring function can after gas well first safety curtain be set up, install christmas tree, set test envelope production packer qualified, excited by caber, the a large amount of nitrogen of quick generation, gas well is lured work, and Real-Time Monitoring down-hole pressure in long-term production process, has popularizing application prospect widely.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
Fig. 1 is structural representation of the present invention;
Fig. 2 is for making the structural representation of nitrogen induced flow device in down-hole shown in Fig. 1.
In figure: 1, tubing hanger; 2, oil pipe; 3, storm valve; 4, pressure bomb; 5, production packer; 6, location sealing is inserted; 7, blind pipe; 8, nitrogen induced flow device is made in down-hole; 9, oil well; 10, igniter head; 11, initiator; 12, detonating primer; 13, detonating fuse; 14, gas-forming agent; 15, shell; 16, fire rod; 17, sand control packer; 18, sealing ring; 19, seating nipple.
Detailed description of the invention
As Fig. 1, shown in 2, nitrogen induced flow completion tubular column is made in down-hole with pressure monitoring function, it is primarily of tubing hanger 1, oil pipe 2, storm valve 3, pressure bomb 4, production packer 5, seating nipple 19, insert location sealing 6, blind pipe 7 and down-hole are made nitrogen induced flow device 8 and are formed, wherein, the upper end of described oil pipe 2 is hung in oil well 9 by tubing hanger 1, storm valve 3, pressure bomb 4, production packer 5 and seating nipple 19 are located on oil pipe 2 respectively, the lower end of oil pipe 2 is connected with blind pipe 7 by inserting location sealing 6, described insertion location sealing 6 is inserted in the sealing drum of the sand control packer 17 in oil well 9, down-hole is made nitrogen induced flow device 8 and is inserted in blind pipe 7.Sealing ring 18 is provided with between described insertion location sealing 6 and the sealing drum of sand control packer 17; Described sealing ring 18 is provided with two.
Described down-hole is made nitrogen induced flow device 8 and is formed primarily of igniter head 10, initiator 11, detonating primer 12, detonating fuse 13, gas-forming agent 14 and shell 15, described igniter head 10 is located at the top of initiator 11, initiator 11 is connected with detonating fuse 13 by detonating primer 12, gas-forming agent 14 is filled in shell 15, is connected with detonating fuse 13.
Described igniter head 10 adopts firing pin type igniter head, also comprises fire rod 16, described fire rod 16, in order to drop into from the upper port of oil pipe in oil pipe and to fall along oil pipe, fire rod clashes into firing pin type igniter head, and the striker impact initiator of firing pin type igniter head, initiator 11 is detonated.
Operating principle: make the quick induced flow completion tubular column of nitrogen gas well under certain gas well lower going-into-well, completion practice installs christmas tree, set test envelope production packer qualified after, open all valves making nitrogen induced flow device from christmas tree cap to down-hole, drop into fire rod from gas production treetop.Fire rod is made nitrogen induced flow device inner chamber accelerates shock excitation well make nitrogen induced flow device from tubing hanger, oil pipe, storm valve, pressure bomb, production packer, seating nipple, location sealing, down-hole, point of release duration and degree of heating striker, excites initiator to produce detonation.Detonation is delivered to gas-forming agent by detonating primer, detonating fuse, and excited gas propellant produces rapidly a large amount of nitrogen, and gas well is lured work, thus produces a large amount of nitrogen and realize gas well induced flow.
The above is the preferred embodiment of the present invention; certainly the interest field of the present invention can not be limited with this; should be understood that; for those skilled in the art; technical scheme of the present invention is modified or equivalent replacement, do not depart from the protection domain of technical solution of the present invention.
Claims (5)
1. nitrogen induced flow completion tubular column is made in the down-hole with pressure monitoring function, it is characterized in that: it is primarily of tubing hanger, oil pipe, storm valve, pressure bomb, production packer, seating nipple, insert location sealing, nitrogen induced flow device composition is made in blind pipe and down-hole, wherein, the upper end of described oil pipe is hung in oil well by tubing hanger, storm valve, pressure bomb, production packer and seating nipple are located on oil pipe respectively, the lower end of oil pipe is connected with blind pipe by inserting location sealing, described insertion location sealing is inserted in the sealing drum of the sand control packer in oil well, down-hole is made nitrogen induced flow device and is inserted in blind pipe.
2. nitrogen induced flow completion tubular column is made in the down-hole of band pressure monitoring function according to claim 1, it is characterized in that: described down-hole is made nitrogen induced flow device and formed primarily of igniter head, initiator, detonating primer, detonating fuse, gas-forming agent and shell, described igniter head is located at the top of initiator, initiator is connected with detonating fuse by detonating primer, gas-forming agent is loaded in the enclosure, is connected with detonating fuse.
3. nitrogen induced flow completion tubular column is made in the down-hole of band pressure monitoring function according to claim 2, it is characterized in that: described igniter head adopts firing pin type igniter head, also comprise fire rod, described fire rod, in order to drop into from the upper port of oil pipe in oil pipe and to fall along oil pipe, fire rod clashes into firing pin type igniter head, and the striker impact initiator of firing pin type igniter head, initiator is detonated.
4. nitrogen induced flow completion tubular column is made in the down-hole of band pressure monitoring function according to claim 3, it is characterized in that: be provided with sealing ring between described insertion location sealing and the sealing drum of sand control packer.
5. nitrogen induced flow completion tubular column is made in the down-hole of band pressure monitoring function according to claim 4, it is characterized in that: described sealing ring is provided with two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410474378.5A CN104373093A (en) | 2014-09-17 | 2014-09-17 | Underground nitrogen-making induced flow completion pipe string having pressure monitoring function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410474378.5A CN104373093A (en) | 2014-09-17 | 2014-09-17 | Underground nitrogen-making induced flow completion pipe string having pressure monitoring function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104373093A true CN104373093A (en) | 2015-02-25 |
Family
ID=52552257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410474378.5A Pending CN104373093A (en) | 2014-09-17 | 2014-09-17 | Underground nitrogen-making induced flow completion pipe string having pressure monitoring function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104373093A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108086946A (en) * | 2018-01-18 | 2018-05-29 | 江苏航天鸿鹏数控机械有限公司 | Gas well induced flow switch valve |
| CN108252691A (en) * | 2018-01-12 | 2018-07-06 | 刘玉友 | A kind of oil/gas well energy supplement without pump with exploiting integrated device |
| CN108252690A (en) * | 2018-01-12 | 2018-07-06 | 刘玉友 | A kind of oil/gas well energy supplement and the application method without pump exploitation integrated device |
| CN111472734A (en) * | 2020-04-08 | 2020-07-31 | 中国石油大学(北京) | A long-acting pressure-free natural gas well production operation process and operation equipment |
-
2014
- 2014-09-17 CN CN201410474378.5A patent/CN104373093A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108252691A (en) * | 2018-01-12 | 2018-07-06 | 刘玉友 | A kind of oil/gas well energy supplement without pump with exploiting integrated device |
| CN108252690A (en) * | 2018-01-12 | 2018-07-06 | 刘玉友 | A kind of oil/gas well energy supplement and the application method without pump exploitation integrated device |
| CN108086946A (en) * | 2018-01-18 | 2018-05-29 | 江苏航天鸿鹏数控机械有限公司 | Gas well induced flow switch valve |
| CN108086946B (en) * | 2018-01-18 | 2024-02-20 | 江苏航天鸿鹏数控机械有限公司 | Gas well blowout inducing switch valve |
| CN111472734A (en) * | 2020-04-08 | 2020-07-31 | 中国石油大学(北京) | A long-acting pressure-free natural gas well production operation process and operation equipment |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into 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: 20150225 |