CN114482954A - Novel process for improving yield by using oil well associated gas - Google Patents
Novel process for improving yield by using oil well associated gas Download PDFInfo
- Publication number
- CN114482954A CN114482954A CN202210139615.7A CN202210139615A CN114482954A CN 114482954 A CN114482954 A CN 114482954A CN 202210139615 A CN202210139615 A CN 202210139615A CN 114482954 A CN114482954 A CN 114482954A
- Authority
- CN
- China
- Prior art keywords
- oil
- sucker rod
- hollow sucker
- cable
- pump body
- 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
- 239000003129 oil well Substances 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000003921 oil Substances 0.000 claims abstract description 37
- 239000007789 gas Substances 0.000 claims abstract description 29
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 239000010779 crude oil Substances 0.000 claims abstract description 13
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 12
- 241000191291 Abies alba Species 0.000 claims abstract description 8
- 238000011084 recovery Methods 0.000 claims abstract description 8
- 239000003345 natural gas Substances 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims abstract description 5
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 238000005086 pumping Methods 0.000 claims description 6
- 239000003814 drug Substances 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 abstract description 6
- 239000010959 steel Substances 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 238000010438 heat treatment Methods 0.000 abstract description 5
- 238000007664 blowing Methods 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 description 6
- 238000000605 extraction Methods 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000005273 aeration Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
-
- 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
- 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
- E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
- E21B43/2401—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection by means of electricity
-
- 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
- E21B43/34—Arrangements for separating materials produced by the well
- E21B43/38—Arrangements for separating materials produced by the well in the well
- E21B43/385—Arrangements for separating materials produced by the well in the well by reinjecting the separated materials into an earth formation in the same well
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- 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)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The invention relates to a new process for improving the yield by utilizing oil well associated gas, which comprises a recovery device, wherein the recovery device comprises a sealing head, a Christmas tree, a cable core wire, a pump body, an oil pipe, an eccentric jet valve, an oil-gas separator, a booster pump, a dosing tank and a hollow sucker rod, the upper end of the oil pipe is provided with the Christmas tree, the interior of the oil pipe is provided with a cable, the core wire at one end of the cable is connected with a power distribution cabinet, the interior of the oil pipe is provided with the hollow sucker rod, the bottom of the hollow sucker rod is provided with the pump body, the eccentric jet valve is arranged above the pump body, the upper end of the Christmas tree is provided with the sealing head, a pipeline is arranged between the hollow sucker rod and the oil-gas separator, and the pipeline is provided with the booster pump and the dosing tank. Compared with the prior art, the invention has the advantages that: the density of the liquid column is reduced, the flow speed is increased, and the slippage is reduced; the heat of the steel pipe heating cable and the heat of the natural gas are transferred to the crude oil, so that the effects of reducing viscosity and preventing wax are achieved, and the self-blowing and high yield of the oil well are ensured.
Description
Technical Field
The invention relates to the technical field of associated gas recovery, in particular to a novel process for improving yield by using oil well associated gas.
Background
In the crude oil extraction process, the self-injection is the most economic one, the newly developed oil well has higher general formation pressure, can self-inject and has higher yield, and the slippage phenomenon is heavier and heavier along with the reduction of the formation pressure and the increase of the water content of the crude oil when the extraction time is prolonged, so that the oil well stops the self-injection and is pumped instead, thereby increasing the extraction cost and reducing the yield; in some blocks, although the formation pressure is very high, the crude oil has higher viscosity, larger density, high wax content and high freezing point, and cannot be sprayed by itself, and the yield is very low after pumping; some thick oil wells with high viscosity can not even be pumped.
The conventional method is to adopt a process of blending thin oil and adding a viscosity reducer or adopting electric heating to reduce viscosity and remove wax, but in some extra-thick oil blocks, the two processes have insignificant effects or higher cost.
Disclosure of Invention
The invention aims to solve the technical problems and provides a novel process for improving the yield by using oil well associated gas.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: the utility model provides an utilize oil well associated gas to improve output's new technology, it includes recovery unit, recovery unit include sealed head, production tree, cable core, the pump body, oil pipe, eccentric jet valve, oil and gas separator, booster pump, add medicinal cupping, hollow sucker rod, oil pipe upper end be equipped with the production tree, inside is equipped with the cable, the heart yearn of cable one end connect the switch board, the inside hollow sucker rod that is equipped with of oil pipe, hollow sucker rod bottom be equipped with the pump body, pump body top be equipped with eccentric jet valve, the production tree upper end be equipped with sealed head, hollow sucker rod and oil and gas separator between be equipped with the pipeline, the pipeline on be equipped with booster pump and add the medicinal cupping.
Further, the distance between the pump body and the eccentric jet valve is m.
Furthermore, a flow pipe is arranged at the bottom of the Christmas tree and the oil-gas separator, and a gate valve is arranged on the flow pipe.
Furthermore, a sleeve is arranged on the outer side of the oil pipe.
A new process for increasing the yield by using oil well associated gas comprises the following steps:
the method comprises the following steps: the cable is lowered into a hollow sucker rod of the oil pumping well and heated by a pump;
step two: an eccentric jet valve is arranged on the hollow sucker rod, and natural gas in a sleeve or associated gas separated by an oil-gas separator is sent to the middle of the cable and the hollow sucker rod annulus by a booster pump;
step three: the mixed liquid flow is injected into the oil pipe on the pump body intermittently through the booster pump and the eccentric jet valve to be mixed with crude oil, and flows upwards in a rotating shape, so that the density of the liquid column is reduced, the flow speed is increased, and the slippage is reduced.
Compared with the prior art, the invention has the advantages that: in the device provided by the invention, the density of the liquid column is reduced, the flow rate is increased, and the slippage is reduced; the heat of the steel pipe heating cable and the heat of the natural gas are transferred to the crude oil, so that the viscosity reduction and wax control effects are achieved, and viscosity reducers or wax removers can be added into some extra-thick crude oil wells to reduce the viscosity and remove the wax; because of the reduction of the density and the viscosity of the crude oil, the oil pressure of a well head is greatly increased, and the self-blowing and the high yield of an oil well are ensured.
Drawings
Fig. 1 is a schematic diagram of a recovery apparatus of the novel process for increasing production using oil well associated gas of the present invention.
As shown in the figure: 1. a sealing head; 2; a Christmas tree; 3. steel pipe cable sheath; 4. a core wire; 5. a pump body; 6, an oil pipe; 7. an eccentric fluidic valve; 8. an oil-gas separator; 9. a booster pump; 10. a medicine adding tank; 11. a hollow sucker rod; 12. a power distribution cabinet; 13. and (4) a gate valve.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The working principle of the invention is as follows:
whether the oil well can maintain the flowing and the yield is critically dependent on the size of the oil pressure at the well head. The oil pressure is greater than defeated oil pipe way return pressure, just can keep the flowing from, and the oil pressure is big more, and output is higher, and the oil pressure is little, and output is low more.
The oil pressure is related to the formation pressure, the hydraulic control pressure in the oil pipe and the flowing friction resistance, the oil pressure is the formation pressure-liquid column pressure-friction resistance, the liquid column pressure and the friction resistance are key under the condition that the formation pressure is not changed, the liquid column pressure is related to the liquid column density, and the liquid column pressure is the density multiplied by the depth, and the larger the density is, the larger the liquid column pressure is.
The frictional resistance is related to the viscosity, and the higher the viscosity, the greater the frictional resistance. Therefore, the process invented by the applicant is that the aeration is used for reducing the density (gas lift) and heating, the viscosity is reduced, and the oil pressure is increased to improve the yield.
For an oil well which has very small stratum energy and is pumped in a transferring way, because the crude oil has higher viscosity or high wax content, the pump efficiency is reduced, the yield is not high, the power consumption of the pumping unit is larger, the oil can not be pumped even seriously, and the oil can not be pumped out, the invention patent of the applicant is utilized, a steel pipe heating cable is arranged in a hollow sucker rod of the pumping well to be heated by the pump, and the attached figure 1: an eccentric jet valve is arranged on the side surface (1 meter on the pump body) of the hollow sucker rod, natural gas in a sleeve or associated gas separated by a separator is sent into the space between a steel pipe cable and the hollow rod ring through a booster pump, and is intermittently injected into an oil pipe of the pump through the booster pump and the eccentric jet valve to be mixed with crude oil, so that the density of a liquid column is reduced, the static pressure of the liquid column is reduced, the heat of the steel pipe heating cable and the heat of associated gas are transferred to the crude oil, the viscosity is reduced, and the frictional resistance is reduced. The power consumption of the oil pumping unit is reduced, and the jacket pressure is reduced by utilizing the natural gas in the casing. The liquid level in the sleeve rises, the submergence of the pump is improved, crude oil can be easily pumped into the pump, the effect of an air anchor under the pump is enhanced, the air flow into the pump is reduced, the generation of air lock is avoided, the pump efficiency is improved, and the yield is increased.
The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (5)
1. A new process for improving the yield by utilizing oil well associated gas comprises a recovery device, and is characterized in that: the recovery device comprises a sealing head (1), a Christmas tree (2), a cable (3), a core wire (4), a pump body (5), an oil pipe (6), an eccentric jet valve (7), an oil-gas separator (8), a booster pump (9), a dosing tank (10) and a hollow sucker rod (11), the upper end of the oil pipe (6) is provided with an oil production tree (2), the inside of the oil pipe is provided with a cable (3), a core wire (4) at one end of the cable (3) is connected with a power distribution cabinet (12), a hollow sucker rod (11) is arranged in the oil pipe (6), a pump body (5) is arranged at the bottom of the hollow sucker rod (11), an eccentric jet valve (7) is arranged above the pump body (5), a sealing head (1) is arranged at the upper end of the Christmas tree (2), a pipeline is arranged between the hollow sucker rod (11) and the oil-gas separator (8), and a booster pump (9) and a medicine adding tank (10) are arranged on the pipeline.
2. The novel process for increasing production using oil well associated gas as claimed in claim 1, wherein: the distance between the pump body (5) and the eccentric jet valve (7) is 1 m.
3. The novel process for increasing production using oil well associated gas as claimed in claim 1, wherein: the bottom of the Christmas tree (2) and the oil-gas separator (8) is provided with a flow pipe, and the flow pipe is provided with a gate valve (13).
4. The novel process for increasing production using oil well associated gas as claimed in claim 1, wherein: and a sleeve is arranged on the outer side of the oil pipe (6).
5. A new process for improving yield by using oil well associated gas is characterized in that: it comprises the following steps:
the method comprises the following steps: the cable is lowered into a hollow sucker rod of the oil pumping well and heated by a pump;
step two: an eccentric jet valve is arranged on the hollow sucker rod, and natural gas in a sleeve or associated gas separated by an oil-gas separator is sent to the middle of the cable and the hollow sucker rod annulus by a booster pump;
step three: the mixed liquid flow is injected into the oil pipe on the pump body intermittently through the booster pump and the eccentric jet valve to be mixed with crude oil, and flows upwards in a rotating shape, so that the density of the liquid column is reduced, the flow speed is increased, and the slippage is reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210139615.7A CN114482954A (en) | 2022-02-16 | 2022-02-16 | Novel process for improving yield by using oil well associated gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210139615.7A CN114482954A (en) | 2022-02-16 | 2022-02-16 | Novel process for improving yield by using oil well associated gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114482954A true CN114482954A (en) | 2022-05-13 |
Family
ID=81480516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210139615.7A Pending CN114482954A (en) | 2022-02-16 | 2022-02-16 | Novel process for improving yield by using oil well associated gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114482954A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2203713Y (en) * | 1994-09-14 | 1995-07-19 | 鞍山市华孚公司 | Electric heating oil-extracting apparatus of hollow sucker rod pump |
| RU2129208C1 (en) * | 1997-03-04 | 1999-04-20 | Марат Хуснуллович Аминев | Method for operation of gusher wells with use of gas-lift phenomenon of associated oil gas |
| RU2280153C1 (en) * | 2005-02-11 | 2006-07-20 | Юрий Сергеевич Самгин | Heating method and device for oil production well provided with sucker-rod borehole pump |
| CN203925455U (en) * | 2014-07-09 | 2014-11-05 | 大庆三博宏大电子技术有限公司 | Voltage regulating type high voltage source-free mining-injecting gas wellhead chemicals-feeder |
| CN105178913A (en) * | 2015-08-05 | 2015-12-23 | 李宾飞 | Natural gas power generation electric heating wax removing and preventing device based on skin effect and application thereof |
| CN208220728U (en) * | 2018-04-04 | 2018-12-11 | 中国石油天然气股份有限公司 | Heavy oil wells tubing string |
| CN210135119U (en) * | 2019-04-03 | 2020-03-10 | 石家庄之迪石油工程技术有限责任公司 | Eccentric fluidic device |
| CN210264557U (en) * | 2019-02-14 | 2020-04-07 | 石家庄之迪石油工程技术有限责任公司 | Hollow sucker rod with heating function |
| CN212927796U (en) * | 2020-09-03 | 2021-04-09 | 石家庄之迪石油工程技术有限责任公司 | A wax removal device for high wax content gas lift well |
-
2022
- 2022-02-16 CN CN202210139615.7A patent/CN114482954A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2203713Y (en) * | 1994-09-14 | 1995-07-19 | 鞍山市华孚公司 | Electric heating oil-extracting apparatus of hollow sucker rod pump |
| RU2129208C1 (en) * | 1997-03-04 | 1999-04-20 | Марат Хуснуллович Аминев | Method for operation of gusher wells with use of gas-lift phenomenon of associated oil gas |
| RU2280153C1 (en) * | 2005-02-11 | 2006-07-20 | Юрий Сергеевич Самгин | Heating method and device for oil production well provided with sucker-rod borehole pump |
| CN203925455U (en) * | 2014-07-09 | 2014-11-05 | 大庆三博宏大电子技术有限公司 | Voltage regulating type high voltage source-free mining-injecting gas wellhead chemicals-feeder |
| CN105178913A (en) * | 2015-08-05 | 2015-12-23 | 李宾飞 | Natural gas power generation electric heating wax removing and preventing device based on skin effect and application thereof |
| CN208220728U (en) * | 2018-04-04 | 2018-12-11 | 中国石油天然气股份有限公司 | Heavy oil wells tubing string |
| CN210264557U (en) * | 2019-02-14 | 2020-04-07 | 石家庄之迪石油工程技术有限责任公司 | Hollow sucker rod with heating function |
| CN210135119U (en) * | 2019-04-03 | 2020-03-10 | 石家庄之迪石油工程技术有限责任公司 | Eccentric fluidic device |
| CN212927796U (en) * | 2020-09-03 | 2021-04-09 | 石家庄之迪石油工程技术有限责任公司 | A wax removal device for high wax content gas lift well |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Jingzhi Inventor before: Chen Gengfen Inventor before: Li Jingzhi |
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| CB03 | Change of inventor or designer information |