CN203230401U - Sleeve gas lift composite lifting well completion pipe string for sucker rod pump - Google Patents
Sleeve gas lift composite lifting well completion pipe string for sucker rod pump Download PDFInfo
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- CN203230401U CN203230401U CN 201320100273 CN201320100273U CN203230401U CN 203230401 U CN203230401 U CN 203230401U CN 201320100273 CN201320100273 CN 201320100273 CN 201320100273 U CN201320100273 U CN 201320100273U CN 203230401 U CN203230401 U CN 203230401U
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- China
- Prior art keywords
- oil
- sucker rod
- pipe
- rod pump
- gas lift
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Abstract
The utility model relates to a sleeve gas lift composite lifting well completion pipe string for a sucker rod pump and belongs to the technical field of oil filed oil gas production. The upper portion of a horn opening is connected with a tail pipe, a gas lift valve is connected in the tail pipe, the upper portion of the tail pipe is connected with a pump working barrel, the upper portion of the pump working barrel is connected with an oil pipe, the upper portion of the oil pipe is connected with an oil pipe hanger, and the sucker rod pump inside the oil pipe is connected with a sucker rod string. The sleeve gas lift composite lifting well completion pipe string has the advantages that the sleeve gas lift composite lifting well completion pipe string is suitable for medium and low water-containing oil wells which are insufficient in stratum energy and have the gas-oil ratios larger than 120; the lower the water content, the better the effect; the gas lift valve is utilized to enable high-pressure natural gas gathered in an oil sleeve annulus to be gradually released into the tail pipe and the oil pipe to form mixed liquid, density of liquid in the tail pipe and the oil pipe is reduced, the gas lift effect is generated, the sleeve gas lift composite lifting oil production effect of the sucker rod pump is achieved, accumulated liquid in a shaft is reduced or removed, the sucker rod pump is in a state of pumping with gushing, a liquid column load of the sucker rod pump is reduced, service life of the sucker rod pump is prolonged, and yield is improved.
Description
Technical field
The utility model relates to a kind of compound lifting completion tubular column of sleeve pipe gas gaslift of sucker rod pump, belongs to oil field oil recovery gas technical field.
Background technology
At present, some adopt deep layer small oil field or the block of depleted formula exploitation, and along with the intensification of exploitation degree, stratum energy constantly reduces, and transfer sucker rod pump to and take out the lifting oil recovery deeply.Because all multifactor influences such as strata pressure, gas-oil ratio, formation fluid rerum natura, moisture difference and pit shaft hydrops, make sucker rod pump take out lifting deeply and recover the oil still existence than big difficulty, the oil well that particularly strata pressure is low, gas-oil ratio is high, because influencing sucker rod pump greatly than short and gas production, tail pipe causes gas lock very greatly or often, the management difficulty of sleeve pipe gas is big, and effect is relatively poor.In order to reduce gases affect and to prevent gas lock, usually take to put sleeve pipe gas and reduce casing pressure, or deepen pump as much as possible and hang the increase submergence, but it is limited to deepen pump extension amplitude, and load is excessive, easily causes rod string to break and takes off, and effect is also undesirable, put sleeve pipe gas simultaneously and also be the huge waste to stratum energy, and cause the shaft bottom hydrops seriously to cause the pit shaft potentiality to fail effectively to be excavated.
Summary of the invention
In order to overcome the deficiencies in the prior art, the utility model provides a kind of compound lifting completion tubular column of sleeve pipe gas gaslift of sucker rod pump.
Adopt the high gas-oil ratio (HGOR) oil well of the compound lifting completion tubular column of the sleeve pipe gas gaslift completion of sucker rod pump, when the normal pumping of sucker rod pump is produced, close sleeve valve, a large amount of natural gases of separating from crude oil being assembled at the oil jacket annular space formed high-pressure natural gas, is the gas mixture that flows in tail pipe, the oil pipe.The pressure of the high-pressure natural gas of assembling when same degree of depth oil jacket annular space is greater than sucker rod pump in the following tail pipe during pressure of fluid column, utilize gas lift valve that the high-pressure natural gas of assembling in the oil jacket annular space progressively is released in tail pipe and the oil pipe and form mixed liquor, reduce the density of tail pipe and oil pipe inner fluid, and generation gaslift effect, form the compound lifting oil recovery of the sleeve pipe gas gaslift effect of sucker rod pump, reach and rationally utilize gas energy to reduce or releasing pit shaft hydrops, reduce flowing bottomhole pressure (FBHP), realize as far as possible that sucker rod pump connects and take out the band spray, reduce sucker rod pump fluid column load, the extension rod pump life-span, the purpose of raising output.
The technical solution adopted in the utility model is: a kind of compound lifting completion tubular column of sleeve pipe gas gaslift of sucker rod pump, at horn mouth top union tail, connect gas lift valve in the tail pipe, connect the pump work tube on tail pipe top, pump work tube top connects oil pipe, and oil pipe top connects boll-weevil hanger; The sucker rod pump of oil pipe inside connects rod string.
Boll-weevil hanger is connected to well head; Rod string passes boll-weevil hanger and is connected to well head.
The beneficial effects of the utility model: the compound lifting completion tubular column of sleeve pipe gas gaslift of the utility model sucker rod pump, be applicable to the stratum energy deficiency, and gas-oil ratio is hanged down aqueous well in 120, moisture more low, effect is more good, the high-pressure natural gas that utilizes gas lift valve that the oil jacket annular space is assembled progressively is released in tail pipe and the oil pipe and forms mixed liquor, reduce the density of tail pipe and oil pipe inner fluid, and produce the gaslift effect, and form the compound lifting oil recovery of the sleeve pipe gas gaslift effect of sucker rod pump, reduce or releasing pit shaft hydrops, sucker rod pump is in and connects the band spray state of taking out, reduce sucker rod pump fluid column load, in the extension rod pump life-span, improve output.
Description of drawings
When considered in conjunction with the accompanying drawings, by the reference following detailed, can more completely understand the utility model better and learn wherein many attendant advantages easily, but accompanying drawing described herein is used to provide further understanding of the present utility model, constitute a part of the present utility model, illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not constitute improper restriction of the present utility model, as figure wherein:
Fig. 1 is structural profile schematic diagram of the present utility model.
Below in conjunction with drawings and Examples the utility model is further specified.
The specific embodiment
Obviously, the many modifications and variations done based on aim of the present utility model of those skilled in the art belong to protection domain of the present utility model.
Embodiment 1: as shown in Figure 1, at horn mouth 6 top union tails 5, connect gas lift valve 4 in the tail pipe 5, connect pump work tube 3 on tail pipe 5 tops, pump work tube 3 tops connect oil pipe 2, and oil pipe 2 tops connect boll-weevil hanger 1; The sucker rod pump 8 of oil pipe 2 inside connects rod string 7.
Boll-weevil hanger 1 is connected to well head; Rod string 7 passes boll-weevil hanger 1 and is connected to well head.
At first gas lift valve 4 is connected the depth location that tail pipe 5 is set in the pumpingh well tubing string, and tail pipe 5 is added the top that is deep to oil reservoir 9, guarantee tail pipe 5 fluid stables, be difficult for forming again new hydrops after the eliminating hydrops.
Close sleeve valve when pumpingh well is produced, at the initial stage of ordinary production, gas lift valve 4 is in closed condition.
Along with the carrying out that produces, the natural gas of separating from the crude oil of oil reservoir 9 is constantly assembled at the oil jacket annular space, casing pressure constantly rises, after casing pressure rises to certain value, namely the oil jacket annular pressure of gas lift valve 4 depth locations greater than tail pipe 5 in during head of liquid, gas lift valve 4 is opened, the high-pressure natural gas that the oil jacket annular space is assembled begins progressively to enter tail pipe 5 from gas lift valve 4, mix with the gas mixture in the tail pipe 5, produce the gaslift effect, reduce in the tail pipe 5 and the density of oil pipe 2 inner fluids, and the fluid of the following tail pipe 5 of the acceleration gas lift valve flowing velocity that makes progress, to reduce or remove the pit shaft hydrops, the indicator card of pumpingh well was shown as and connected the band spray state of taking out this moment, reduced the fluid column load of sucker rod pump, the compound lifting of the sleeve pipe gas gaslift of sucker rod pump is recovered the oil and has been reached best production status.
The high-pressure natural gas of assembling along with the oil jacket annular space progressively discharges, casing pressure progressively descends, when the oil jacket annular pressure of gas lift valve 4 depth locations equals in the tail pipe 5 head of liquid, gas lift valve 4 begins to cut out, the natural gas of oil jacket annular space stops to enter tail pipe 5, the natural gas of separating from the crude oil of oil reservoir 9 continues to assemble at the oil jacket annular space, casing pressure constantly rises, when the oil jacket annular pressure of the depth location of gas lift valve 4 again greater than tail pipe 5 in during head of liquid, the compound lifting of sleeve pipe gas gaslift of beginning new round sucker rod pump.
In addition, rationally set gas lift valve 4 depth of settings, can significantly shorten the cycle of the compound lifting of sleeve pipe gas gaslift of sucker rod pump, reach best production effect.
The utility model has been realized the compound lifting cycle oil of sleeve pipe gas gaslift of sucker rod pump, after this well completion was gone into operation 15 days, casing pressure rises to setting value, begin to produce the compound lifting effect of sleeve pipe gas gaslift of sucker rod pump for the first time, after this, the compound lifting cycle of sleeve pipe gas gaslift of sucker rod pump is 5 days, single gaslift 8 hours, at this moment, the duty of sucker rod pump is in to connect takes out the band spray, 35 tons of producing from normal sucker rod pump pumping of day produce oil rise to 55 tons, the single gaslift increases oil about 20 tons, owing to after repeatedly producing the compound lifting of sleeve pipe gas gaslift of sucker rod pump, reduce or removed the hydrops of pit shaft, reduced flowing bottomhole pressure (FBHP), producing pressure differential increases, and the load of the sucker rod pump when after this normal pumping is produced also obviously descends, and daily oil production also rises to about 45 tons, and the cycle of the compound lifting of sleeve pipe gas gaslift of sucker rod pump also progressively foreshortens to 2-5 days, the oil increasing effect highly significant.
As mentioned above, embodiment of the present utility model is explained, but as long as not breaking away from inventive point of the present utility model and effect in fact can have a lot of distortion, this will be readily apparent to persons skilled in the art.Therefore, such variation also all is included within the protection domain of the present utility model.
Claims (2)
1. the compound lifting completion tubular column of sleeve pipe gas gaslift of a sucker rod pump is characterized in that connecting gas lift valve in the tail pipe at horn mouth top union tail, connects the pump work tube on tail pipe top, and pump work tube top connects oil pipe, and oil pipe top connects boll-weevil hanger; The sucker rod pump of oil pipe inside connects rod string.
2. the compound lifting completion tubular column of sleeve pipe gas gaslift of a kind of sucker rod pump according to claim 1 is characterized in that boll-weevil hanger is connected to well head; Rod string passes boll-weevil hanger and is connected to well head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320100273 CN203230401U (en) | 2013-03-06 | 2013-03-06 | Sleeve gas lift composite lifting well completion pipe string for sucker rod pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320100273 CN203230401U (en) | 2013-03-06 | 2013-03-06 | Sleeve gas lift composite lifting well completion pipe string for sucker rod pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203230401U true CN203230401U (en) | 2013-10-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320100273 Expired - Fee Related CN203230401U (en) | 2013-03-06 | 2013-03-06 | Sleeve gas lift composite lifting well completion pipe string for sucker rod pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203230401U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108798623A (en) * | 2018-06-27 | 2018-11-13 | 中国石油化工股份有限公司 | A kind of natural gas mixes dilute gaslift technological parameter preferred method |
| CN112814652A (en) * | 2021-01-13 | 2021-05-18 | 江苏联友科研仪器有限公司 | Visual model cauldron for ultralow gas permeability |
-
2013
- 2013-03-06 CN CN 201320100273 patent/CN203230401U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108798623A (en) * | 2018-06-27 | 2018-11-13 | 中国石油化工股份有限公司 | A kind of natural gas mixes dilute gaslift technological parameter preferred method |
| CN112814652A (en) * | 2021-01-13 | 2021-05-18 | 江苏联友科研仪器有限公司 | Visual model cauldron for ultralow gas permeability |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131009 Termination date: 20210306 |