Oil well assembly for oil production and fluid injection 机翻标题: 暂无翻译,请尝试点击翻译按钮。

公开号/公开日
WO2016077935 A1 2016-05-26 [WO201677935] / 2016-05-26
申请号/申请日
2015WO-CA51217 / 2015-11-23
发明人
ANDERSON SCOTT CRAIG;DOHERTY BENJAMIN DANIEL;
申请人
OPIS OIL PRODUCTION INTEGRATED SYSTEMS;
主分类号
IPC分类号
E21B-033/068E21B-034/02E21B-043/12
摘要
(WO201677935) An oil well assembly and a method thereof for injecting fluid into an oil reservoir to promote production of oil from the oil reservoir is provided.  The oil well assembly comprises a pump for pumping oil from the oil reservoir to the surface and for transporting treatment fluid from the surface to a valve for controlling flow of treatment fluid to the oil reservoir.  The pump may be lubricated using the treatment fluid even when the valve has closed the flow of treatment fluid.
机翻摘要
暂无翻译结果,您可以尝试点击头部的翻译按钮。
地址
代理人
代理机构
;
优先权号
2014GB-0020752 2014-11-21 2015US-62164714 2015-05-21
主权利要求
(WO201677935)  CLAIMS:   1.  An oil well assembly comprising:    a production tubing for transporting oil from an oil reservoir to a surface;    an injection string at least partially disposed within the production tubing for injecting treatment fluid from the surface to the oil reservoir;    a pump disposed within the production tubing and in fluid communication with the injection string and comprising an outlet end and an inlet end, for pumping oil within the production tubing from the oil reservoir to the surface in a direction from the inlet end to the outlet end, and for transporting treatment fluid from the surface to the injection string in a direction from the outlet end to the inlet end;    a wellhead assembly located at the surface and coupled to the production tubing for receiving oil from the production tubing, and coupled to the outlet end of the pump for providing treatment fluid to the injection string via the pump;    a valve disposed within the production tubing and coupled both to the injection string and to the inlet end of the pump, for controlling an amount of treatment fluid passed from the pump to the injection string; and    a port located between the inlet end of the pump and the valve, and in fluid communication with the wellhead assembly for providing treatment fluid to the pump.   2. The oil well assembly of claim 1, wherein the valve is a tension regulated valve for controlling the amount of treatment fluid passed from the pump to the injection string.   3. The oil well assembly of claim 2, wherein the wellhead assembly comprises a lift apparatus to raise and lower the pump within the production tubing and to control the opening or closing of the tension regulated valve when the pump is raised or lowered.   4. The oil well assembly of claim 1, wherein the pump comprises a hollow rotor disposed within a housing, and the hollow rotor comprises an interior passage for passing treatment fluid from the wellhead assembly to the injection string and the port.    5. The oil well assembly of claim 4, wherein the treatment fluid provided from the port is pumped with the oil within the production tubing from the inlet end to the outlet end for lubricating the pump. 6.  The oil well assembly of claim 5, wherein the port is located on the inlet end of the hollow rotor.   7. The oil well assembly of claim 6, wherein a second port is located at an end of a capillary string, the capillary string disposed within the production tubing between the wellhead assembly and the pump.   8. The oil well assembly of claim 4, further comprising a swivel for coupling the pump to the valve in order to provide passage of treatment fluid between the interior passage and the value, and for decoupling rotational movement between the pump and the valve in order to allow the hollow rotor to rotate while the valve remains stationary.   9. The oil well assembly of claim 4, further comprising a tag head for releasably coupling the pump to the valve in order to allow the hollow rotor to be disconnected and removed from the oil well assembly without removing the valve and the injection string.   10. The oil well assembly of claim 4, wherein the pump is a progressive cavity pump.   11. The oil well assembly of claim 4, wherein the pump is a screw pump. 12.  The oil well assembly of claim 4, wherein the pump is a positive displacement pump.   13. The oil well assembly of claim 4, wherein the pump is a kinetic-energy pump. 14.  The oil well assembly of claim 4, wherein the pump is a centrifugal pump.   15. The oil well assembly of claim 1, wherein the injection string comprises a tail string located at a bottom end of the production tubing, the tail string comprising a    horizontal section for injecting treatment fluid at horizontally spaced apart regions of the oil reservoir.   16. The oil well assembly of claim 15, wherein the tail string comprises a sub near a heel of the horizontal section for discharging the treatment fluid near the heel.   17. The oil well assembly of claim 15, wherein the tail string comprises a sub between a heel of the horizontal section and a toe of the horizontal section for discharging the treatment fluid away from the heel.   18. The oil well assembly of claim 15, wherein the tail string comprises a toe comprising one of a jet, a valve, an auger tip, a check valve, a nozzle, a sub, or a carbide tip, for discharging the treatment fluid at the toe. 19.  The oil well assembly of claim 1, further comprising a hollow sucker rod string for coupling the wellhead to the pump in order to drive the pump from a drive mechanism of the wellhead assembly and to transport treatment fluid to the pump from the wellhead assembly. 20.  A process comprising:    a) providing the oil well assembly of any one of claims 1 to 17;    b) passing treatment fluid through the pump in a direction from the outlet end to the inlet end;    c) pumping treatment fluid with crude oil through the pump in a direction from the inlet end to the outlet end; and    d) controlling, via a valve, an amount of treatment fluid passed from the pump to the injection string.   21. The process of claim 20, wherein the treatment fluid comprises a corrosion inhibitor, a demulsifier, a scale inhibitor, a wax inhibitor, a paraffin inhibitor, or a pump lubricant.   The process of claim 20, wherein the treatment fluid comprises water or steam.
法律状态
(WO201677935) LEGAL DETAILS FOR WO2016077935  Actual or expected expiration date=2018-11-21    Legal state=ALIVE    Status=PENDING     Event publication date=2015-11-23  Event code=WO/APP  Event indicator=Pos  Event type=Examination events  Application details  Application country=WO WOCA2015051217  Application date=2015-11-23  Standardized application number=2015WO-CA51217     Event publication date=2016-05-26  Event code=WO/A1  Event type=Examination events  Published application with search report  Publication country=WO  Publication number=WO2016077935  Publication stage Code=A1  Publication date=2016-05-26  Standardized publication number=WO201677935  LEGAL DETAILS FOR DESIGNATED STATE EP  Actual or expected expiration date=2035-05-21    Legal state=ALIVE    Status=PENDING   Corresponding cc:  Designated or member state=EP Corresponding appl: EP15861971    Event publication date=2016-07-06  Event code=WO/121  Event type=Designated states  EP: The EPO has been informed by wipo that ep was designated in this application Corresponding cc:  Designated or member state=EP
专利类型码
A1
国别省市代码
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