CN201517374U - Gas recovery well completion pipe string - Google Patents
Gas recovery well completion pipe string Download PDFInfo
- Publication number
- CN201517374U CN201517374U CN200920246761XU CN200920246761U CN201517374U CN 201517374 U CN201517374 U CN 201517374U CN 200920246761X U CN200920246761X U CN 200920246761XU CN 200920246761 U CN200920246761 U CN 200920246761U CN 201517374 U CN201517374 U CN 201517374U
- Authority
- CN
- China
- Prior art keywords
- oil
- gas
- oil pipe
- well
- gas lift
- 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.)
- Expired - Lifetime
Links
- 238000011084 recovery Methods 0.000 title claims abstract description 25
- 238000012360 testing method Methods 0.000 claims abstract description 31
- 239000003129 oil well Substances 0.000 claims abstract description 7
- 210000002445 nipple Anatomy 0.000 claims description 25
- 238000004519 manufacturing process Methods 0.000 abstract description 20
- 230000015572 biosynthetic process Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 abstract 3
- 235000017491 Bambusa tulda Nutrition 0.000 abstract 3
- 241001330002 Bambuseae Species 0.000 abstract 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 abstract 3
- 239000011425 bamboo Substances 0.000 abstract 3
- 239000007789 gas Substances 0.000 description 30
- 238000005516 engineering process Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 239000012530 fluid Substances 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
A gas production well completion pipe string is applied to a gas production well of an oil and gas field and is a downhole completion pipe string. Is characterized in that: the gas recovery well completion pipe column is connected with the bellmouth from bottom to top, bellmouth upper portion is connected with the pressure gauge through oil pipe and holds in the palm a section of thick bamboo, and pressure gauge holds in the palm a section of thick bamboo upper portion and is connected with down the gas lift working barrel through oil pipe, and gas lift working barrel upper portion is connected with the gas lift working barrel through oil pipe down, is fixed with the nozzle that dams in the pit in the oil pipe on last gas lift working barrel upper portion, holds in the palm a section of thick bamboo internal fixation. The effect is as follows: the pressure gauge supporting cylinder carrying the oil well test pressure gauge is put into the well before the upper gas lift working cylinder, the lower gas lift working cylinder and the underground oil nozzle, so that the requirements of gas lift liquid drainage and underground throttling can be met simultaneously, and the conditions of bottom hole flowing pressure, temperature and bottom pressure recovery can be monitored timely. The normal production of the oil and gas well is not influenced, accurate formation test data can be obtained, the pipe column works reliably, and the cost investment is low.
Description
Technical field
The utility model relates to oil gas field production gas technology field, the completion tubular column of particularly a kind of gas recovery well down-hole.
Background technology
During the gas recovery well completion completion tubular column design is mainly considered the problem of three aspects: the one, help carrying out the induced flow construction after putting in place under the completion tubular column; The 2nd, when producing, normal gas production can carry out throttling to the gases at high pressure of stratum output; The 3rd, can completion tubular column want satisfy the needs of formation testing in the manufacturing process.
At present, two kinds of induced flow methods are arranged: a kind of method is to replace out pit shaft high density well killing fluid with the low-density circulation fluid.Promptly form certain stream and press, rely on the stratum feed flow to discharge pit shaft low-density well killing fluid, realize gas recovery well blowing production in the shaft bottom.Longer with the method discharge opeing cycle that the low-density circulation fluid replaces, but input is lower, and completion tubular column is simple in structure.Second method is to annotate nitrogen to lift induced flow.Be about to nitrogen and inject the oil jacket annular space, replace out pit shaft liquid, reduce bottom pressure, the spray of realization is produced.Annotating nitrogen, to lift discharge opeing cycle of induced flow method short, but drop into higherly, and the different completion tubular columns designs of well depth are also different.
Can realize throttling production by surface choke or underground oil nozzle dual mode during the gas recovery well ordinary production.The surface choke easy construction, and check easily and change oil nozzle, and do not influence production test, but it is stifled to need outfit ground heater to prevent that production flow line from freezing.Subsurface choke is to utilize test carriage that oil nozzle is rendered to a certain position, down-hole, relies on temperature in wellbore that oil nozzle is heated, and prevents that gas expansion cooling from forming the air water bond and freezing the plugging line.This kind mode is constructed comparatively complicated, and influences production test, but maintenance workload is little, the ground installation less investment, and management is simple.
Gaslift discharge opeing induced flow technology, downhole choke oil nozzle technology and production test technology three improve ripe technology, and the operating principle between these three technologies does not have necessary relation, the operation process of each technology has a style of one's own, when applying to individual well simultaneously, interfere with each other, condition each other.Because the deficiency of gas recovery well completion tubular column structure, three technologies can not be simultaneously in aboveground application without a break.
Conventional gas recovery well well-completing process if completion tubular column does not install the discharge opeing gas lift valve additional, for well depth is big greater than the then gaslift difficulty of well of 2000m, the activity duration is long, even can't be realized discharge opeing induced flow by gaslift; If then drain time is very long, operation pressure is high, operating cost is high to adopt the tubing flow displacement of low-density circulation fluid.After installing subsurface choke additional, can't be lowered to the actual data of test pressure meter by pit shaft to oil reservoir middle part formation testing; Be lowered to the test pressure meter again if pull subsurface choke out earlier, and then be lowered to subsurface choke, must pull oil nozzle earlier out after then test is finished, pull pressure gauge again out, and then be lowered to subsurface choke, could realize ordinary production, operation process is loaded down with trivial details, the cycle is long, cost drop into high, and repeatedly switch through influencing the accuracy of test data.
The utility model content
The purpose of this utility model is: a kind of gas recovery well completion tubular column is provided, makes gaslift discharge opeing induced flow, downhole choke oil nozzle and production test energy simultaneously in aboveground application without a break.Overcoming present completion tubular column can not be simultaneously in aboveground realization gaslift discharge opeing induced flow without a break, downhole choke and production test technology.
The technical solution adopted in the utility model is: the gas recovery well completion tubular column, mainly by oil pipe, down-hole dam nozzle, go up the gaslift seating nipple, gaslift seating nipple, manometer and horn mouth are formed down, it is characterized in that: the gas recovery well completion tubular column is connected with horn mouth from bottom to top, horn mouth top is connected with manometer by oil pipe, manometer top is connected with down the gaslift seating nipple by oil pipe, and following gaslift seating nipple top is connected with the gaslift seating nipple by oil pipe.In the oil pipe on last gaslift seating nipple top, be fixed with the down-hole nozzle that dams.In manometer, be fixed with the oil well test pressure gauge.
Described manometer is a retrievable type test pressure meter holder tube.
The utility model gas recovery well completion tubular column adopts retrievable type test pressure meter holder tube, is fixed on the test pressure meter in the retrievable type test pressure meter holder tube and transfers to the oil-gas Layer middle part, and the gaslift seating nipple is arranged at top, the needs that can satisfy production and test.Throw in subsurface choke in projected depth, after test is finished, pull subsurface choke earlier out, pull manometer again out, the oil well test pressure gauge is carried to ground, can obtain every data information of well performance testing by oil well test pressure.
The beneficial effects of the utility model: the utility model gas recovery well completion tubular column, to carry the manometric manometer of oil well test, prior to last gaslift seating nipple, following gaslift seating nipple and subsurface choke G.I.H, then can satisfy the needs of gaslift discharge opeing and downhole choke simultaneously, simultaneously can be as required, timely monitor flowing bottomhole pressure (FBHP), temperature and bottom pressure recovery situation.Neither influence oil gas well ordinary production, can obtain formation testing data accurately again, this tubing string reliable operation, the cost input is lower.
Description of drawings
Fig. 1 is the structural profile schematic diagram of the utility model gas recovery well completion tubular column.
Among the figure, 1. sleeve pipe, 2. oil pipe, 3. nozzle, 4. top gaslift seating nipple, 5. bottom gaslift seating nipple, 6. manometer, 7. horn mouth dam in the down-hole.
The specific embodiment
Embodiment 1: with a bite gas recovery well completion tubular column is example, and the utility model is described in further detail.
Consult Fig. 1.The gas recovery well completion tubular column, mainly by oil pipe 2, down-hole dam nozzle 3, go up gaslift seating nipple 4, gaslift seating nipple 5, manometer 6 and horn mouth 7 are formed down.It is the 73mm oil pipe that oil pipe 2 adopts diameter.
The gas recovery well completion tubular column is connected with the horn mouth 7 of 93x55mm from bottom to top, and horn mouth 7 tops are connected with a KP105 manometer 6 by oil pipe 2, and manometer 6 is retrievable type test pressure meter holder tubes.In manometer 6, be fixed with an oil well test pressure gauge.Manometer 6 tops are connected with gaslift seating nipple 5 under the KPx108 by oil pipe 2, and following gaslift seating nipple 5 tops are connected with a KPx108 by oil pipe 2 and go up gaslift seating nipple 4.Nozzle 3 dams in the down-hole that to be fixed with a diameter in the oil pipe 2 on last gaslift seating nipple 4 tops be 8mm.The gas recovery well completion tubular column is lowered to 5
1/
2" in the sleeve pipe 1.Horn mouth 7 degree of depth are 3500m; Manometer 6 degree of depth are 3300m; Following gaslift seating nipple 5 degree of depth are 2800m; Last gaslift seating nipple 4 degree of depth are 2100m; The dam degree of depth of nozzle 3 of down-hole is 1800m.
Certain oil gas field is far away apart from oil field main force block, is unfavorable for management.Gas reservoir buried depth 3300～3700m, geothermal gradient is 2.33 ℃/100m; Barometric gradient is 1.20MPa/100m, is low temperature, normal pressure oil-gas reservoir.Reservoir properties is poor, average pore 5.9%, and mean permeability 0.40 * 10-3 μ m2 is the low hole of spy, special low permeability reservoir, and natural production capacity is low, and main yield-increasing technique technology is a fracturing reform.In order to improve this oil-gas field development efficient, adopt the gas recovery well completion tubular column, solved the problem of gaslift induced flow, downhole choke and three aspects of production test.
Claims (2)
1. gas recovery well completion tubular column, mainly by oil pipe (2), nozzle (3) dams in the down-hole, last gaslift seating nipple (4), following gaslift seating nipple (5), manometer (6) and horn mouth (7) are formed, it is characterized in that: the gas recovery well completion tubular column is connected with horn mouth (7) from bottom to top, horn mouth (7) top is connected with manometer (6) by oil pipe (2), manometer (6) top is connected with down gaslift seating nipple (5) by oil pipe (2), following gaslift seating nipple (5) top is connected with gaslift seating nipple (4) by oil pipe (2), in the oil pipe (2) on last gaslift seating nipple (4) top, be fixed with the down-hole nozzle (3) that dams, in manometer (6), be fixed with the oil well test pressure gauge.
2. gas recovery well completion tubular column according to claim 1 is characterized in that: described manometer (6) is a retrievable type test pressure meter holder tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920246761XU CN201517374U (en) | 2009-10-30 | 2009-10-30 | Gas recovery well completion pipe string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920246761XU CN201517374U (en) | 2009-10-30 | 2009-10-30 | Gas recovery well completion pipe string |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201517374U true CN201517374U (en) | 2010-06-30 |
Family
ID=42498096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920246761XU Expired - Lifetime CN201517374U (en) | 2009-10-30 | 2009-10-30 | Gas recovery well completion pipe string |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201517374U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306643A (en) * | 2013-07-10 | 2013-09-18 | 崔斌 | Drainage gas recovery device and method |
| CN106761690A (en) * | 2016-12-22 | 2017-05-31 | 中国石油天然气股份有限公司 | Intelligent test well for gas lift process simulation |
| CN111119865A (en) * | 2019-12-31 | 2020-05-08 | 西安荣达石油工程有限公司 | Method for visually finding leakage of casing damage well underground nitrogen gas lift negative pressure |
-
2009
- 2009-10-30 CN CN200920246761XU patent/CN201517374U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306643A (en) * | 2013-07-10 | 2013-09-18 | 崔斌 | Drainage gas recovery device and method |
| CN103306643B (en) * | 2013-07-10 | 2015-09-23 | 崔斌 | A kind of water drainage gas production device and method |
| CN106761690A (en) * | 2016-12-22 | 2017-05-31 | 中国石油天然气股份有限公司 | Intelligent test well for gas lift process simulation |
| CN111119865A (en) * | 2019-12-31 | 2020-05-08 | 西安荣达石油工程有限公司 | Method for visually finding leakage of casing damage well underground nitrogen gas lift negative pressure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100630 |
|
| CX01 | Expiry of patent term |