CN109267970A - The integrated serialization DP technology of steam injection oil recovery and complete outfit - Google Patents

The integrated serialization DP technology of steam injection oil recovery and complete outfit Download PDF

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Publication number
CN109267970A
CN109267970A CN201811024794.XA CN201811024794A CN109267970A CN 109267970 A CN109267970 A CN 109267970A CN 201811024794 A CN201811024794 A CN 201811024794A CN 109267970 A CN109267970 A CN 109267970A
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CN
China
Prior art keywords
steam injection
oil
wellhead
well head
oil pipe
Prior art date
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Pending
Application number
CN201811024794.XA
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Chinese (zh)
Inventor
田丽霞
王维纲
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Individual
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Individual
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Publication date
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Priority to CN201811024794.XA priority Critical patent/CN109267970A/en
Publication of CN109267970A publication Critical patent/CN109267970A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK 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
    • E21B43/12Methods or apparatus for controlling the flow of the obtained fluid to or in wells
    • E21B43/121Lifting well fluids
    • E21B43/126Adaptations of down-hole pump systems powered by drives outside the borehole, e.g. by a rotary or oscillating drive
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK 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
    • E21B43/24Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection

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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)
  • Earth Drilling (AREA)

Abstract

The integrated serialization DP technology of steam injection oil recovery and complete outfit, including ground driving unit on screw pump, the fixed anchor of wellhead sealing device, production wellhead, steam injection well head, wellhead blowout preventor, oil pipe, bull stick, steam injection oil-extracting screw pump and screw pump, ground driving unit on screw pump is mounted on production wellhead, production wellhead is mounted on steam injection well head, oil pipe is connected with the boll-weevil hanger being located on steam injection well head, steam injection oil pipe is connected with the metal stator that bimetal screw rod pumps, and the lower oil recovery depth to setting, fixed anchor is equipped on the oil pipe of metal stator lower part;Steam injection well head top is equipped with double-gate wellhead blowout preventor, and middle part is equipped with steam injection mouth;Rotating actuator of the bull stick from the top down through bimetal screw rod pump drive, the wellhead sealing device being located on production wellhead, the center of production wellhead and double disc well head open flow device penetrates oil pipe center and connect with rotor, constitutes the integrated serialization DP technology of steam injection oil recovery and complete outfit.

Description

The integrated serialization DP technology of steam injection oil recovery and complete outfit
Technical field
The present invention relates to a kind of viscous crude field production technique, specifically a kind of viscous crude steam injection recovery one serialization DP technology and complete outfit cut and turn oil-well pump by steam soak and need replacing well head and flow string, then lower oil pumping Pump and sucker rod construction period.
Background technique
The major measure that steam injection is recovered the oil as heavy crude heat extraction, is widely applied during heavy oil development, but the work at present Skill needs steam injection and two sets of different techniques and equipment of recovering the oil.Flow string need to be taken out from shaft bottom with workover rig when steam injection, The thermal recoveries relevant equipments such as steam injection instlated tubular, steam injection well head are changed, bored well is also needed to wait for pressure diffusion after steam injection, then with hydraulic pressure well, pressure Steam soak efficiency can be reduced when well, then upper workover rig takes out steam injection instlated tubular, tripping in oil well pump changes ground production wellhead etc. Equipment, steam injection oil recovery replacement process is extremely complex, not only occupies a large amount of production time, but also need to expend a large amount of thermal energy With a large amount of manpower and material resources, the development cost of viscous crude is increased.
Summary of the invention
The object of the present invention is to provide the integrated serialization DP technology of steam injection oil recovery and complete outfits, overcome above-mentioned existing skill Defect existing for art.
The technical scheme is that be accomplished by the following way:
The present invention includes ground screw pump driving equipment, wellhead sealing device, production wellhead, steam injection well head, wellhead blowout preventor, oil Pipe, bull stick, steam injection oil-extracting screw pump and fixed anchor.It is characterized in that ground driving unit on screw pump is mounted on production wellhead, Production wellhead is mounted on steam injection well head, and oil pipe is connected with the boll-weevil hanger being located on steam injection well head, steam injection oil pipe and note The metal stator of vapour oil-extracting screw pump is connected, and the lower oil recovery depth to setting, is equipped on the oil pipe of metal stator lower part Fixed anchor;Steam injection well head top is equipped with double-gate wellhead blowout preventor, and middle part is equipped with steam injection mouth;Bull stick recovers the oil spiral shell through steam injection from the top down The rotating actuator of bar pump drive, the wellhead sealing device being located on production wellhead, production wellhead and double disc well head are put The center of spray apparatus penetrates oil pipe center and connect with rotor, constitutes the integrated serialization DP technology of steam injection oil recovery and complete outfit.
Steam injection well head is made of high-temperature and high-presure resistent metal, and center is equipped with centre bore, and upper top is equipped with and production wellhead phase The ring flange of connection, lower top are equipped with the ring flange with casing connection, and ring flange inner circumferential is equipped with steel ring seal groove, and top is symmetrically arranged with The threaded hole connecting with double disc wellhead sealing device is equipped with undergauge annular table in upper top surface steel ring seal groove inner circumferential, in annular table It is equipped with steel ring seal groove, lower part is equipped with steam and injects pipe fitting.
Boll-weevil hanger is set as cylindrical, is made of high-temperature and high-presure resistent metal, and upper top is equipped with suspension disk, and inner circumferential is set There is box thread, is equipped with steel ring corresponding with the steel ring seal groove in the annular table on steam injection well head in the bottom surface of suspension disk Seal groove, lower part set the box thread or male thread connecting with oil pipe.
The sealing element and sealing plate of well head double disc wellhead sealing device use high-temperature and high-presure resistent polytetrafluoroethylene material system At.
The metal stator of steam injection oil-extracting screw pump is made of 38crmoal steel, is milled out through production miller and special tool interior Spiral constitutes metal inside spin.
Technical parameter of the invention:
Structural parameters performance parameter
Root diameter D:46-60mm is every to turn theoretical displacement q:70-200me/r
Eccentricity of rotor E:3-8mm theoretical displacement Q reason: 10-30m3/d (100r/min)
Rotor screw pitch t:60-100mm single stage of pressure: 1-1.5Mpa
Stator lead T:120-200mm volumetric efficiency: 50% or more
Series Z:7-42 grades of pump setting depths of grade: 200m-1200m
It is applicable in casing: 114-177mm driving device power: 15-30kw
It is applicable in oil pipe: 73-89mm rotational speed of driving unit n:150-400r/min
Sucker rod screw thread: CYG25
Compared with the prior art the present invention has the advantage that
1, steam injection time can be dramatically saved, the production time efficiency of heavy oil wells is improved, reduces heat with pump steam injection Adopt cost;
2, have the thick function of pumping of conventional screw pump, also can in the thermal recovery later period even if oil temperature reduces crude oil fluidity and is deteriorated Maintain the production of long period.To greatly prolong the thermal recovery period, period oil production is improved, improves thermal recovery economic benefit;
3, the underground steam injection oil-extracting screw pump oil production equipment have the characteristics that it is wear-resisting, take sand, General Purpose Rubber stator spiral shell can be overcome The problem of pump is easily burnt in the dry grinding of bar pump.It can also be safely operated even if in the poor well of liquid-producing capacity;
4, equally have ground installation space small with common screw pump, lift low power consumption and other advantages, compared with conventional pump, have anti- The advantages that gas lock, eccentric abrasion prevention, long service life can substantially reduce device maintenance cost.
Detailed description of the invention
Fig. 1-is steam injection status architecture schematic diagram of the present invention
Fig. 2-is oil pumping state structural schematic diagram of the invention
The ground 1- driving unit on screw pump 2- wellhead sealing device 3- production wellhead 4- wellhead sealing device 5- gas injection well head in figure 6- oil pipe 7- bull stick 8- steam injection oil-extracting screw pump rotor 9- screw pump stator 10- fixes anchor 11- oil reservoir.
Specific embodiment
Further to disclose technical solution of the present invention, said specifically by embodiment with reference to the accompanying drawings of the specification It is bright:
The present invention includes ground driving unit on screw pump 1, wellhead sealing device 2, production wellhead 3, steam injection well head 5, wellhead blowout preventor 4, oil pipe 6, bull stick 7, steam injection oil-extracting screw pump rotor 8, steam injection oil-extracting screw pump stator 9 and fixed anchor 10, it is characterised in that ground Face driving unit on screw pump is mounted on production wellhead, and production wellhead is mounted on steam injection well head, oil pipe and is located at steam injection well head On boll-weevil hanger be connected, oil pipe is connected with the metal stator of steam injection oil-extracting screw pump, and the lower oil recovery to setting is deep Degree is equipped with fixed anchor on the oil pipe of metal stator lower part, and steam injection well head top is equipped with double-gate wellhead blowout preventor, and middle part sets steam injection Mouth 5;Rotating actuator of the bull stick from the top down through steam injection oil-extracting screw pump driving device, the well head being located on production wellhead are close The center of envelope device, production wellhead and double disc well head open flow device penetrates oil pipe center and connect with rotor, constitutes steam injection and recovers the oil integrally Serialization oil recovery complete outfit.
Specifically in the application as shown in Figure 1, this figure indicates that underground rotor 8 proposes the stator of steam injection oil-extracting screw pump, steam injection Channel is opened, and double disc wellhead blowout preventor 3 is closed, and steam injection is entered in fixed anchor casing 10 below by steam injection well head, then into Enter oil reservoir 11, carries out safe steam injection.It is put into rotor after steam injection, adjusts the operating stroke of rotor, has blocked ground screw pump Rotating mechanism and bull stick fixation position, opening ground driving unit on screw pump and double disc well sealer can be adopted Oil does not need any lower tubular column, viscous crude can be produced ground from stratum, time saving and energy saving, while reducing the heat of steam injection Loss, greatly extends the steam soak period, improves the production efficiency of steam soak, reduce heavy oil development cost.It is real The existing integrated serialization DP technology of steam injection oil recovery.

Claims (5)

1. vapour vapour recovers the oil, integrated serialization DP technology and complete outfit include ground driving unit on screw pump, wellhead sealing device, The fixed anchor of production wellhead, steam injection well head, wellhead blowout preventor, oil pipe, bull stick, vapour vapour oil-extracting screw pump and screw pump, feature exist In ground, driving unit on screw pump is mounted on production wellhead, and production wellhead is mounted on steam injection well head, oil pipe and is located at steam injection Boll-weevil hanger on well head is connected, and steam injection oil pipe is connected with the metal stator that bimetal screw rod pumps, and down to setting Oil recovery depth is equipped with fixed anchor on the oil pipe of metal stator lower part;Steam injection well head top is equipped with double-gate wellhead blowout preventor, middle part Equipped with steam injection mouth;Rotating actuator of the bull stick from the top down through bimetal screw rod pump drive, is located on production wellhead The center of wellhead sealing device, production wellhead and double disc well head open flow device penetrates oil pipe center and connect with rotor, constitutes steam injection and adopts Oily one serialization DP technology and complete outfit.
Integrated serialization DP technology and complete outfit 2. steam injection according to claim 1 is recovered the oil, it is characterised in that: it is infused Vapour well head is made of high-temperature and high-presure resistent metal, and center is equipped with centre bore, and upper top is equipped with the flange being connected with production wellhead Disk, lower top are equipped with the ring flange with casing connection, and ring flange inner circumferential is equipped with steel ring seal groove, and top is symmetrically arranged with and double disc well The threaded hole of sealer for mouth connection is equipped with undergauge annular table in upper top surface steel ring seal groove inner circumferential, steel ring is equipped in annular table Seal groove, lower part are equipped with steam and inject pipe fitting.
Integrated serialization DP technology and complete outfit 3. steam injection according to claim 1 is recovered the oil, it is characterised in that: its oil Pipe hanger is set as cylindrical, is made of high-temperature and high-presure resistent metal, and upper top is equipped with suspension disk, and inner circumferential is equipped with box thread, It is equipped with steel ring seal groove corresponding with the steel ring seal groove in the annular table on steam injection well head in the bottom surface of suspension disk, under Portion sets the box thread or male thread connecting with oil pipe.
Integrated serialization DP technology and complete outfit 4. steam injection according to claim 1 is recovered the oil, it is characterised in that: its well The sealing element and sealing plate of mouth double disc wellhead sealing device are made of high-temperature and high-presure resistent polytetrafluoroethylene material.
Integrated serialization DP technology and complete outfit 5. steam injection according to claim 1 is recovered the oil, it is characterised in that: steam injection The metal stator of oil-extracting screw pump production miller and special tool mill out inside spin, constitute metal inside spin.
CN201811024794.XA 2018-09-04 2018-09-04 The integrated serialization DP technology of steam injection oil recovery and complete outfit Pending CN109267970A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811024794.XA CN109267970A (en) 2018-09-04 2018-09-04 The integrated serialization DP technology of steam injection oil recovery and complete outfit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811024794.XA CN109267970A (en) 2018-09-04 2018-09-04 The integrated serialization DP technology of steam injection oil recovery and complete outfit

Publications (1)

Publication Number Publication Date
CN109267970A true CN109267970A (en) 2019-01-25

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811024794.XA Pending CN109267970A (en) 2018-09-04 2018-09-04 The integrated serialization DP technology of steam injection oil recovery and complete outfit

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110630235A (en) * 2019-09-26 2019-12-31 吴浩 Injection-production integrated crude oil exploitation device
WO2020177349A1 (en) * 2019-03-06 2020-09-10 无锡恒信北石科技有限公司 Intelligent oil extraction system using all-metal screw pump

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020177349A1 (en) * 2019-03-06 2020-09-10 无锡恒信北石科技有限公司 Intelligent oil extraction system using all-metal screw pump
CN110630235A (en) * 2019-09-26 2019-12-31 吴浩 Injection-production integrated crude oil exploitation device
CN110630235B (en) * 2019-09-26 2020-12-22 温州通昌机械有限公司 Injection-production integrated crude oil exploitation device

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Application publication date: 20190125