CN1118614C - Sand-discharge oil production method and equipment - Google Patents
Sand-discharge oil production method and equipment Download PDFInfo
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- CN1118614C CN1118614C CN00111133A CN00111133A CN1118614C CN 1118614 C CN1118614 C CN 1118614C CN 00111133 A CN00111133 A CN 00111133A CN 00111133 A CN00111133 A CN 00111133A CN 1118614 C CN1118614 C CN 1118614C
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- sand
- oil
- pipe
- mixed liquor
- oil reservoir
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Abstract
The present invention provides a sand-discharge oil production method and an apparatus thereof, which is used for crude oil production in sand flow oil reservoirs. The sand-discharge oil production method has the technical scheme that a power liquid is sent to a hydraulic jet pump under the well, the hydraulic jet pump mixes the power liquid and the stratum liquid to form a mixed liquid which is sent to the ground through an under-well mixing liquid pipe of which the flow passage has a small cross section area, and a tail pipe under the hydraulic jet pump is fixed on the inner wall of the well bore through an oil pipe anchor. The sand-discharge oil production method and the apparatus thereof can throw all the flowed sand of the oil reservoir onto the ground so as to simplify the oil production technology in sand flow oil reservoirs, greatly increase output of the oil well and reduce production cost; when the fine sand oil reservoir is processed by sand prevention, the present invention can restore the production of the dry well of which the output is almost zero.
Description
Technical field
The present invention relates to a kind of oil extraction especially method and the device thereof of sand production petroleum reservoir oil extraction.
Background technology
In the oil extraction process because the influence of factors such as oil reservoir structure, crude oil property, formation water composition, oil production method and device must adapt to shake out, the requirement of the content of wax, aqueous corrosion, oily various oil reservoirs such as thick.Oil reservoir shakes out and is regarded as influencing first factor of oil extraction.That sand production petroleum reservoir distributes is wide, difficulty of governance is big, and the abundant oil reservoir of many reserves just causes the oil well can not ordinary production even stopping production because of shaking out.At present, the exploitation overwhelming majority of sand production petroleum reservoir is taked the method for sand control, prevent that promptly reservoir sand from flowing into pit shaft with formation fluid, chemical sand control, mechanical sand control, composite sand prevention etc. are wherein arranged.The shortcoming of these methods is the resistances that increased stratum liquid inflow pit shaft, has reduced oil well output, the producing cost height, and the sand control life is short, the wellbore tool complex structure, the possibility that the pit shaft accident takes place increases.A kind of jetting pump oil production method and device are arranged now, it is by a wellhead assembly power fluid to be sent into well dynamic liquid pipe, drive the jetting pump work that well dynamic liquid pipe connects down, form mixed liquor with mixing in the liquid suction pump of oil reservoir outflow and with power fluid, upwards send ground along the annular space in the sleeve.Because the cross-sectional area of annular space is big, causes mixed liquor slow at the flow velocity of annular space, sand production in oil is partly sunk, and drops down onto on the packer, causes packer sand to bury.This can cause workover, when playing pump, sand production in oil enters in the water jet pump, stops up runner, plays a pump operation and can not carry out.Moreover because pressure reduction is big about the packer, packer easily lost efficacy and causes oil well to stop production.In addition, because the existence of packer, packer can not be communicated with up and down, and oil well dynamically can not be observed by sleeve pipe, can't enroll oil well casing pressure and producing fluid level data.
Summary of the invention
Technical problem to be solved by this invention provides a kind of sand-discharge oil production method, and it can make oil reservoir shake out fully to be inhaled in the hydraulic jet pump and discharge ground.
Another technical problem to be solved by this invention provides a kind of device of realizing said method.
A kind of sand-discharge oil production method of the present invention is to realize like this, wellhead assembly by a band runner power fluid is sent in the well dynamic liquid pipe in the pit shaft and and then deliver to hydraulic jet pump in the pump barrel that is connected with well dynamic liquid pipe, make the jetting pump work, hydraulic jet pump by its tail pipe that connects down with the formation fluid sucking-off, and it is mixed back mixed liquor that forms upwards deliver to ground with power fluid, contain sand mixed liquor on send by the little down-hole mixed liquor pipe of the cross-sectional area in the pit shaft and finish, the mixed liquor that contains sand upwards flow to ground by wellhead assembly to be far longer than the shake out flow velocity of settling rate of oil reservoir, prevent the oil reservoir sedimentation of shaking out, tail pipe is fixed in the pit shaft by the tubing anchor of oil reservoir top, and an end in tail pipe drag-out hole is positioned at the oil reservoir bottom.
A kind of sand-discharge oil production device of the present invention is to realize like this, it has the wellhead assembly of band runner, the runner of power fluid import in wellhead assembly on the wellhead assembly is connected with well dynamic liquid pipe in the pit shaft, the runner of mixture export on the wellhead assembly in wellhead assembly is connected with down-hole mixed liquor pipe in the pit shaft, hydraulic jet pump in well dynamic liquid pipe and down-hole mixed liquor pipe and the pump barrel is connected, the cross-sectional area of down-hole mixed liquor pipe runner is little, thereby make the mixed liquor that contains sand upwards flow to ground by wellhead assembly to be far longer than the shake out flow velocity of settling rate of oil reservoir, prevent the oil reservoir sedimentation of shaking out, the tail pipe that is connected the pump barrel bottom is fixed on the shaft in wall of oil reservoir top by tubing anchor, and the inlet opening on the tail pipe is positioned at the oil reservoir bottom.
Adopt above-mentioned sand-discharge oil production method and device thereof, power fluid enters hydraulic jet pump and makes its work through wellhead assembly, well dynamic liquid pipe, hydraulic jet pump will comprise that crude oil, oil reservoir shake out, in the formation fluid suction pump of water etc., and mix with power fluid and to form mixed liquor, mixed liquor is upwards delivered to well head through down-hole mixed liquor pipe, discharge ground, finish the oil extraction process.Because the cross-sectional area of down-hole mixed liquor pipe runner is little, so mixed liquor shakes out oil reservoir and takes to ground to be far longer than the shake out flow velocity of settling rate of oil reservoir.Therefore, avoided in the former jetting pump oil production method sectional area oil reservoir big, that the mixed liquor flow velocity causes slowly owing to the sleeve annular space to shake out dropping down onto on the packer problem brought.And because oil reservoir contains sand and all is inhaled in the hydraulic jet pump, the inlet opening top in the tail pipe does not have residual sand, thereby the problem of also having avoided oil reservoir to be buried by sand.This oil production method and device have been simplified the oil production technology of sand production petroleum reservoir, have increased the permeability of near wellbore zone oil reservoir, have increased substantially oil well output, have reduced producing cost, have improved the overall efficiency of oil extraction.For the almost nil dried-up well of oil well output behind the fine silt oil reservoir sand control, can utilize this oil production method and device to resume production.In addition,, but be communicated with up and down, therefore can enroll oil well casing pressure and producing fluid level data easily because tubing anchor is isolated up and down unlike packer.
Power fluid can adopt the water under high pressure more than needed of water flooding pump station.When its pressure does not reach the hydraulic jet pump job requirement, can add a booster pump to improve source pressure.
Mixed liquor generally can be directly outer defeated.Higher when the mixed liquor sand content, defeatedly outside causing at need desanding device can be set near wellhead assembly, outer more defeated after the desanding.
Below in conjunction with description of drawings sand-discharge oil production device of the present invention.
Description of drawings
Fig. 1 is the schematic diagram of a kind of embodiment of the present invention's sand-discharge oil production device.Fig. 2 is the schematic diagram of its another kind of embodiment.Fig. 3 is the schematic diagram of its hydraulic jet pump set structure.Fig. 4 is the schematic diagram of the jetting pump oil extracting device before the present invention.
The specific embodiment
As shown in drawings, a kind of sand-discharge oil production device of the present invention, it has the wellhead assembly (3) of band runner, the runner of power fluid import (2) in wellhead assembly on the wellhead assembly is connected with the well dynamic liquid pipe (4) in the pit shaft (9), the runner of mixture export on the wellhead assembly (11) in wellhead assembly is connected with down-hole mixed liquor pipe (10) in the pit shaft, hydraulic jet pump (5) in well dynamic liquid pipe and down-hole mixed liquor pipe and the pump barrel (8) is connected, the cross-sectional area of down-hole mixed liquor pipe runner is little, thereby make the mixed liquor that contains sand upwards flow to ground by wellhead assembly to be far longer than the shake out flow velocity of settling rate of oil reservoir, prevent the oil reservoir sedimentation of shaking out, the tail pipe (7) that is connected the pump barrel bottom is fixed on the shaft in wall of oil reservoir top by tubing anchor (6), and the inlet opening on the tail pipe is positioned at the oil reservoir bottom.
Also there is the formation fluid import pit shaft bottom corresponding to the position of oil reservoir.Pit shaft is the artificial bottom of a well bottom.
Fig. 1 has represented the sand-discharge oil production device that a kind of well dynamic liquid pipe and down-hole mixed liquor pipe are set up in parallel in pit shaft.Fig. 2 has represented a kind of well dynamic liquid pipe and concentric being set together of down-hole mixed liquor pipe, and promptly well dynamic liquid pipe box is contained in the sand-discharge oil production device in the mixed liquor pipe of down-hole.
Sand-discharge oil production device shown in Figure 2 in use, also can be sent into power fluid, and send mixed liquor from well dynamic liquid pipe from the mixed liquor pipe of down-hole.Soon two pipes and power fluid import, mixture export are changed use mutually.
As shown in Figure 4, on the jetting pump oil extracting device before the present invention, top has the wellhead assembly (14) of throw in catcher (12) to go up dynamic liquid import (13), well dynamic liquid pipe (20) in power fluid import and the pit shaft (15) links to each other, hydraulic jet pump (16) top in pump barrel (19) and the pump barrel links to each other with well dynamic liquid pipe, the bottom links to each other with tail pipe (18), and tail pipe is fixed on the shaft in wall by packer (17).During use, mixed liquor drains into ground by the mixture export (21) that the annular space between pit shaft and the well dynamic liquid pipe makes progress on wellhead assembly.
Down-hole mixed liquor pipe flow channel cross-section long-pending should be little to the flow velocity that makes mixed liquor greater than the oil reservoir settling rate of shaking out.
When jetting is pumped into the down-hole, can it be sent into well dynamic liquid pipe by the throw in catcher on the wellhead assembly (1), deliver to operating position in the pump barrel with power fluid.
When needs trip out ground with hydraulic jet pump from the down-hole, can in mixture export, inject power fluid, the flow direction that makes power fluid is opposite when recovering the oil, hydraulic jet pump is upwards delivered to throw in catcher on the well head along well dynamic liquid pipe in, with its taking-up.
One runner is set in the pump barrel of sand-discharge oil production device shown in Figure 2 to be connected with down-hole mixed liquor pipe.
Claims (2)
1, a kind of sand-discharge oil production method, wellhead assembly by a band runner power fluid is sent in the well dynamic liquid pipe in the pit shaft and and then deliver to hydraulic jet pump in the pump barrel that is connected with well dynamic liquid pipe, make the jetting pump work, hydraulic jet pump by its tail pipe that connects down with the formation fluid sucking-off, and it is mixed back mixed liquor that forms upwards deliver to ground with power fluid, it is characterized in that, contain sand mixed liquor on send by the little down-hole mixed liquor pipe of the cross-sectional area in the pit shaft and finish, the mixed liquor that contains sand upwards flow to ground by wellhead assembly to be far longer than the shake out flow velocity of settling rate of oil reservoir, prevent the oil reservoir sedimentation of shaking out, tail pipe is fixed in the pit shaft by the tubing anchor of oil reservoir top, and an end in tail pipe drag-out hole is positioned at the oil reservoir bottom.
2, a kind of device of realizing the described method of claim 1, it has the wellhead assembly (3) of band runner, the runner of power fluid import (2) in wellhead assembly on the wellhead assembly is connected with the well dynamic liquid pipe (4) in the pit shaft (9), the runner of mixture export on the wellhead assembly (11) in wellhead assembly is connected with down-hole mixed liquor pipe (10) in the pit shaft, hydraulic jet pump (5) in well dynamic liquid pipe and down-hole mixed liquor pipe and the pump barrel (8) is connected, it is characterized in that, the cross-sectional area of down-hole mixed liquor pipe runner is little, thereby make the mixed liquor that contains sand upwards flow to ground by wellhead assembly to be far longer than the shake out flow velocity of settling rate of oil reservoir, prevent the oil reservoir sedimentation of shaking out, the tail pipe (7) that is connected the pump barrel bottom is fixed on the shaft in wall of oil reservoir top by tubing anchor (6), and the inlet opening on the tail pipe is positioned at the oil reservoir bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00111133A CN1118614C (en) | 2000-06-13 | 2000-06-13 | Sand-discharge oil production method and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00111133A CN1118614C (en) | 2000-06-13 | 2000-06-13 | Sand-discharge oil production method and equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1274797A CN1274797A (en) | 2000-11-29 |
| CN1118614C true CN1118614C (en) | 2003-08-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00111133A Expired - Lifetime CN1118614C (en) | 2000-06-13 | 2000-06-13 | Sand-discharge oil production method and equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1118614C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936137B (en) * | 2010-08-09 | 2012-10-10 | 北京奥瑞安能源技术开发有限公司 | Discharging and mining pipe for coalbed methane |
| CN103321622A (en) * | 2013-07-03 | 2013-09-25 | 胜利油田隆迪石油技术(装备)有限责任公司 | Sand draining and oil extracting method in manner of integrating injection and extraction for thermal producing well and device thereof |
| CN106194118A (en) * | 2015-04-30 | 2016-12-07 | 中国石油天然气股份有限公司 | The oil production method of sidetracked hole and extracting device of oil |
| CN104879096A (en) * | 2015-06-05 | 2015-09-02 | 中国石油天然气股份有限公司 | Oil production device for sidetracked wells |
| CN106437569A (en) * | 2016-08-03 | 2017-02-22 | 北京化工大学 | Production technique adopting electric submersible pump and jet sand-discharging pump for combined oil extraction and sand removal |
| CN107816337B (en) * | 2016-09-12 | 2020-02-14 | 中国石油天然气股份有限公司 | Sand-carrying oil production method based on hydraulic jet pump |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1200429A (en) * | 1915-06-28 | 1916-10-03 | Jesse A Case | Spring-wheel. |
| US2251617A (en) * | 1939-08-30 | 1941-08-05 | Henry F Gensicke | Means for and method of controlling temperature, humidity, ventilation, and gas content in warehouses |
| US4988389A (en) * | 1987-10-02 | 1991-01-29 | Adamache Ion Ionel | Exploitation method for reservoirs containing hydrogen sulphide |
| US5372190A (en) * | 1993-06-08 | 1994-12-13 | Coleman; William P. | Down hole jet pump |
| US5555934A (en) * | 1995-06-12 | 1996-09-17 | R. E. Wright Environmental, Inc. | Multiple well jet pump apparatus |
| US6050340A (en) * | 1998-03-27 | 2000-04-18 | Weatherford International, Inc. | Downhole pump installation/removal system and method |
-
2000
- 2000-06-13 CN CN00111133A patent/CN1118614C/en not_active Expired - Lifetime
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1200429A (en) * | 1915-06-28 | 1916-10-03 | Jesse A Case | Spring-wheel. |
| US2251617A (en) * | 1939-08-30 | 1941-08-05 | Henry F Gensicke | Means for and method of controlling temperature, humidity, ventilation, and gas content in warehouses |
| US4988389A (en) * | 1987-10-02 | 1991-01-29 | Adamache Ion Ionel | Exploitation method for reservoirs containing hydrogen sulphide |
| US5372190A (en) * | 1993-06-08 | 1994-12-13 | Coleman; William P. | Down hole jet pump |
| US5555934A (en) * | 1995-06-12 | 1996-09-17 | R. E. Wright Environmental, Inc. | Multiple well jet pump apparatus |
| US6050340A (en) * | 1998-03-27 | 2000-04-18 | Weatherford International, Inc. | Downhole pump installation/removal system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1274797A (en) | 2000-11-29 |
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Owner name: SHENGLI OIL FIELD LONGDI PETROLEUM TECHNOLOGY (EQU Free format text: FORMER OWNER: ZHANG SHUHUA Effective date: 20130816 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130816 Address after: 256600, Shandong City, Binzhou Province foreshore City West Office Industrial Park (North Zhao West) Patentee after: Shengli Oil Field Longdi Petroleum Technology (Equipment) Co., Ltd. Address before: 256600 Shandong city of Binzhou province the Yellow River six road No. 531, injection production in Binnan Oil Production Plant Patentee before: Zhang Shuhua |
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| CX01 | Expiry of patent term |
Granted publication date: 20030820 |
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| CX01 | Expiry of patent term |