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 PDF

Info

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
Authority
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
Application number
CN201410474378.5A
Other languages
Chinese (zh)
Inventor
许发宾
黄凯文
曾春珉
鹿传世
张崇
黄亮
余意
刘贤玉
徐靖
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China National Offshore Oil Corp CNOOC
CNOOC China Ltd Zhanjiang Branch
Original Assignee
China National Offshore Oil Corp CNOOC
CNOOC China Ltd Zhanjiang Branch
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China National Offshore Oil Corp CNOOC, CNOOC China Ltd Zhanjiang Branch filed Critical China National Offshore Oil Corp CNOOC
Priority to CN201410474378.5A priority Critical patent/CN104373093A/en
Publication of CN104373093A publication Critical patent/CN104373093A/en
Pending legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/01Methods 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
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/16Enhanced recovery methods for obtaining hydrocarbons
    • E21B43/166Injecting a gaseous medium; Injecting a gaseous medium and a liquid medium
    • E21B43/168Injecting a gaseous medium
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00Survey of boreholes or wells
    • E21B47/06Measuring temperature or pressure

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

Nitrogen induced flow completion tubular column is made in down-hole with pressure monitoring function
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.
CN201410474378.5A 2014-09-17 2014-09-17 Underground nitrogen-making induced flow completion pipe string having pressure monitoring function Pending CN104373093A (en)

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 (5)

* Cited by examiner, † Cited by third party
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
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
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
CN111472734A (en) * 2020-04-08 2020-07-31 中国石油大学(北京) Long-acting pressure-free natural gas well production operation process and operation equipment
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

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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
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) Long-acting pressure-free natural gas well production operation process and operation equipment

Similar Documents

Publication Publication Date Title
CN104695927B (en) A kind of coiled tubing and production tube compound tube string pressure break and completion integral method
CN104278978B (en) Soluble bridge plug fracturing technology pipe string and fracturing method thereof
CN103806934A (en) High-stress low-porosity coal bed presplitting permeability-increase methane drainage system and method
CN103352684A (en) Chemical and physical combined explosion fracturing device and manufacturing method thereof
CN103410484A (en) Small-diameter tubular pump pump-passing depth checking perforating and pumping combined production method
CN106703774B (en) Drawing type hydraulic jetting fracturing and pitching sliding sleeve sand washing connection make device and method
CN107654213B (en) High-energy negative pressure blocking remover
CN203321480U (en) Cased hole completion multi-stage fracturing horizontal well selective mining pipe column
CN203362135U (en) Perforating device improving gas permeability of coal beds
CN104373093A (en) Underground nitrogen-making induced flow completion pipe string having pressure monitoring function
RU177980U1 (en) Fracturing Device
CN106593387B (en) A method of realizing the more cluster pressure breaks of horizontal well in segments
CN201531256U (en) Dynamic seal press device for improving fracturing effect of composite perforation
CN102052066B (en) Dynamic seal pressing method and device for improving complex perforation pressing crack effect
CN105545255B (en) A kind of novel oilfield is long-acting every adopting tubing string
CN105089581B (en) A kind of Large Diameter Pipeline gas well well flow rate controller and process
CN104265250A (en) Rapid induced flow completion pipe column for subsurface nitrogen making gas well
CN104265251A (en) Nitrogen making induced flow device
CN204140036U (en) Make nitrogen induced flow device
CN204140035U (en) The quick induced flow completion tubular column of nitrogen gas well is made in down-hole
CN205225224U (en) Hole fracturing well completion devices that shower more
CN107130945A (en) A kind of rupture disk perforated casing box cupling device
CN204140037U (en) Nitrogen induced flow completion tubular column is made in down-hole with pressure monitoring function
CN206668207U (en) A kind of built-in remote-control is hung fire the quickly degradable ball of device
CN205297515U (en) Coiled tubing drags hydraulic jet fracturing device

Legal Events

Date Code Title Description
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