CN104005749A - Offshore thickened oil thermal recovery wellhead lifting monitoring device - Google Patents
Offshore thickened oil thermal recovery wellhead lifting monitoring device Download PDFInfo
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- CN104005749A CN104005749A CN201410205826.1A CN201410205826A CN104005749A CN 104005749 A CN104005749 A CN 104005749A CN 201410205826 A CN201410205826 A CN 201410205826A CN 104005749 A CN104005749 A CN 104005749A
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- sleeve pipe
- monitoring device
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- oil
- rising
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Abstract
The invention relates to an offshore thickened oil thermal recovery wellhead lifting monitoring device. The offshore thickened oil thermal recovery wellhead lifting monitoring device comprises a barrel-shaped body with the sealed upper end and the open lower end, a plurality of sealing rings embedded in the body at intervals, a tubular oil pipe stretching compensator penetrating through the body axially, a sleeve pipe arranged outside the oil pipe stretching compensator in a sleeved mode, a spring device connected with the upper end of the sleeve pipe through a spring base, a stress sensor installed at the upper end of the spring device and a computer display system electrically connected with the stress sensor, wherein annular reserved space exists between the oil pipe stretching compensator and the body, the outer wall of the sleeve pipe makes contact with the sealing rings in the body, a gap is reserved between the inner wall of the sleeve pipe and the oil pipe stretching compensator, the upper end and the lower end of the body are respectively provided with a flange structure, and the monitoring device is fixed between an oil pipe head and a sleeve pipe head through the flange structures at the upper end and the lower end of the body. In the thickened oil thermal recovery process, the offshore thickened oil thermal recovery wellhead lifting monitoring device can avoid lifting of a Christmas tree caused by extending of the sleeve pipe, guarantee normally operation of oil recovery, effectively monitor the extending quantity of the sleeve pipe in time, provide guidance for operation and lower operation risks.
Description
Technical field
The present invention relates to a kind of heavy crude heat extraction development device, be specifically related to a kind of Offshore Heavy Oil Field thermal production well mouth rising monitoring device that is applied to petroleum natural gas exploration field.
Background technology
Offshore Heavy Oil Field Simulation on whole pay zones technology is one and has high-tech, high investment, high risk industry.Steam soak is the major way of present stage Offshore Heavy Oil Field exploitation.The heat producing in steam soak process makes quill excessive to thermal stress, causes casing deformation, and then causes that casing head and well head raise.At present, because sleeve pipe extends prediction deviation greatly and cannot monitor in time, bring hidden danger to the safety work of heavy crude heat extraction.Especially Offshore Heavy Oil Field thermal recovery, due to the particularity of its working environment, if raising, sleeve pipe and well head head can not monitor in time and take effective control measure, will cause well head lifting, even damage extracting device of oil, platform and staff's safety is caused to great threat.
Summary of the invention
For the problems referred to above, the object of this invention is to provide a kind of Offshore Heavy Oil Field thermal production well mouth rising monitoring device, can timely and effective monitoring heavy crude heat extraction process middle sleeve elongation, for operation provides guidance, reduce operating risk.
For achieving the above object, the present invention takes following technical scheme: a kind of Offshore Heavy Oil Field thermal production well mouth rising monitoring device, it is characterized in that, this monitoring device comprises: a upper end closed, the tubular sleeve pipe rising compensation arrangement body that lower end is uncovered, several are embedded in the intrinsic sealing ring of described sleeve pipe rising compensation arrangement in interval from top to bottom, one runs through the tubulose oil pipe extension expansion loop that extends downward described sleeve pipe rising compensation arrangement body exterior behind the upper end of described sleeve pipe rising compensation arrangement body vertically, one is set in the sleeve pipe of described oil pipe extension expansion loop outside, one spring assembly being connected with described sleeve pipe upper end by spring pedestal, one is arranged on the strain gauge of described spring assembly upper end, and the calculator display organization being electrically connected with described strain gauge, wherein, between described oil pipe extension expansion loop and described sleeve pipe rising compensation arrangement body, there is the headspace of an annular, the outer wall of described sleeve pipe contacts with the intrinsic sealing ring of described sleeve pipe rising compensation arrangement, between the inwall of described sleeve pipe and described oil pipe extension expansion loop, leaves gap, the upper and lower side of described sleeve pipe rising compensation arrangement body all has flange arrangement, and described sleeve pipe rising compensation arrangement body is fixed between tubing head and casing head by the flange arrangement of its upper and lower side.
In a preferred embodiment, the length in vertical direction of the headspace between described oil pipe extension expansion loop and described sleeve pipe rising compensation arrangement body is 800mm.
In a preferred embodiment, the BT sealing ring that described sealing ring adopts the embedded spring in upper and lower end face and is integrated with the vulcanization of rubber, the carbon spring steel wires coiling that described spring is 1mm by diameter forms, and described rubber is selected oil resistant, soda acid, sizing material that aging is good.
In a preferred embodiment, described sleeve pipe adopts ferrous alloy dilatancy material.
The present invention is owing to taking above technical scheme, it has the following advantages: the present invention is fixed between tubing head and casing head, in heavy crude heat extraction process, along with injecting multielement hot fluid from well head, sleeve pipe expanded by heating vertical direction is along the upwards lifting of headspace of sleeve pipe rising compensation arrangement body, and compression spring device is realized thermal stress and effectively discharged, thereby avoids causing because sleeve pipe extends production tree lifting, eliminate safe hidden trouble, ensure that oil producing operation normally carries out.Simultaneously, due to sleeve pipe uphill process compression spring device, spring assembly is recorded the variable quantity of power and is transferred to calculator display organization by strain gauge, calculator display organization obtains the stroke of spring assembly according to Hooke's law, thereby obtain the elongation of sleeve pipe, can timely and effective monitoring heavy crude heat extraction process middle sleeve elongation, for operation provides guidance, reduce operating risk.
Brief description of the drawings
Below in conjunction with accompanying drawing, the present invention is carried out to detailed describing.But only the providing in order to understand better the present invention of accompanying drawing is provided, they not should be understood to limitation of the present invention.
Fig. 1 is structural representation of the present invention;
Fig. 2 is installation site of the present invention schematic diagram.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in detail.
As shown in Figure 1, the present invention includes a sleeve pipe rising compensation arrangement body 1, an oil pipe extension expansion loop 2 and a sleeve pipe 3, a spring assembly 4, a strain gauge 5 and a calculator display organization 6.Wherein, sleeve pipe rising compensation arrangement body 1 is upper end closed, the uncovered tubular structure in lower end, and its upper and lower side all has flange arrangement, and its inwall from top to bottom interval is embedded with several sealing rings 7.Oil pipe extension expansion loop 2 is tubular structure, it extends downward sleeve pipe rising compensation arrangement body 1 outside after running through vertically the upper end of sleeve pipe rising compensation arrangement body 1, and between oil pipe extension expansion loop 2 and sleeve pipe rising compensation arrangement body 1, has the headspace 8 of an annular.Sleeve pipe 3 is set in the outside of oil pipe extension expansion loop 2, and its outer wall contacts with the sealing ring 7 in sleeve pipe rising compensation arrangement body 1, between inwall and oil pipe extension expansion loop 2, leaves gap.The upper end of sleeve pipe 3 is provided with a spring pedestal 9, sleeve pipe 3 is connected with the lower end of spring assembly 4 by spring pedestal 6, strain gauge 5 is installed in the upper end of spring assembly 4, and strain gauge 5 is fixed on sleeve pipe rising compensation arrangement body 1 and with calculator display organization 6 and is electrically connected.
In a preferred embodiment, the length in vertical direction of the headspace 8 between oil pipe extension expansion loop 2 and sleeve pipe rising compensation arrangement body 1 is 800mm.
In a preferred embodiment, the BT sealing ring (balanced type series seal circle) that sealing ring 7 adopts the embedded spring in upper and lower end face and is integrated with the vulcanization of rubber, the carbon spring steel wires coiling that spring is 1mm by diameter forms, and rubber is selected oil resistant, soda acid, sizing material that aging is good.
In a preferred embodiment, sleeve pipe 3 adopts ferrous alloy dilatancy material, has high-ductility, high strength and high work hardening rate.
As shown in Figure 2, during the present invention applies at the scene, after oil well cementing completes, determine and adopt specification of the present invention according to the specification of oil well casing, then by the flange of sleeve pipe rising compensation arrangement body 1 upper and lower side, top of the present invention is connected with tubing head 10, bottom is connected with casing head 11, is fixed between tubing head 10 and casing head 11.In heavy crude heat extraction process, along with injecting multielement hot fluid from well head, sleeve pipe 3 expanded by heating vertical direction are along the upwards lifting of headspace 8 of sleeve pipe rising compensation arrangement body 1, compression spring device 4 is realized thermal stress and is effectively discharged, thereby avoid causing because sleeve pipe 3 extends production tree 12 liftings, eliminate safe hidden trouble, ensure that oil producing operation normally carries out.Simultaneously, due to sleeve pipe 3 uphill process compression spring devices 4, spring assembly 4 is recorded the variable quantity of power and is transferred to calculator display organization 6 by strain gauge 5, calculator display organization 6 obtains the stroke of spring assembly 4 according to Hooke's law, thereby obtain the elongation of sleeve pipe 3, realize heavy crude heat extraction process middle sleeve rising Real-Time Monitoring.
The various embodiments described above are only for further describing object of the present invention, technical scheme and beneficial effect; be not limited to the present invention; within the spirit and principles in the present invention all; any amendment of making, be equal to replacement, improvement etc., within protection scope of the present invention all should be included in.
Claims (5)
1. an Offshore Heavy Oil Field thermal production well mouth rising monitoring device, is characterized in that, this monitoring device comprises:
One upper end closed, the uncovered tubular sleeve pipe rising compensation arrangement body in lower end,
Several are embedded in the intrinsic sealing ring of described sleeve pipe rising compensation arrangement in interval from top to bottom,
One runs through the tubulose oil pipe extension expansion loop that extends downward described sleeve pipe rising compensation arrangement body exterior behind the upper end of described sleeve pipe rising compensation arrangement body vertically,
One is set in the sleeve pipe of described oil pipe extension expansion loop outside,
One spring assembly being connected with described sleeve pipe upper end by spring pedestal,
One is arranged on the strain gauge of described spring assembly upper end, and
One calculator display organization being electrically connected with described strain gauge;
Wherein, between described oil pipe extension expansion loop and described sleeve pipe rising compensation arrangement body, there is the headspace of an annular; The outer wall of described sleeve pipe contacts with the intrinsic sealing ring of described sleeve pipe rising compensation arrangement, between the inwall of described sleeve pipe and described oil pipe extension expansion loop, leaves gap; The upper and lower side of described sleeve pipe rising compensation arrangement body all has flange arrangement, and described sleeve pipe rising compensation arrangement body is fixed between tubing head and casing head by the flange arrangement of its upper and lower side.
2. a kind of Offshore Heavy Oil Field thermal production well mouth rising monitoring device as claimed in claim 1, is characterized in that, the length in vertical direction of the headspace between described oil pipe extension expansion loop and described sleeve pipe rising compensation arrangement body is 800mm.
3. a kind of Offshore Heavy Oil Field thermal production well mouth rising monitoring device as claimed in claim 1, it is characterized in that, the BT sealing ring that described sealing ring adopts the embedded spring in upper and lower end face and is integrated with the vulcanization of rubber, the carbon spring steel wires coiling that described spring is 1mm by diameter forms, and described rubber is selected oil resistant, soda acid, sizing material that aging is good.
4. a kind of Offshore Heavy Oil Field thermal production well mouth rising monitoring device as claimed in claim 2, it is characterized in that, the BT sealing ring that described sealing ring adopts the embedded spring in upper and lower end face and is integrated with the vulcanization of rubber, the carbon spring steel wires coiling that described spring is 1mm by diameter forms, and described rubber is selected oil resistant, soda acid, sizing material that aging is good.
5. a kind of Offshore Heavy Oil Field thermal production well mouth rising monitoring device as claimed in claim 1 or 2 or 3 or 4, is characterized in that, described sleeve pipe adopts ferrous alloy dilatancy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410205826.1A CN104005749A (en) | 2014-05-15 | 2014-05-15 | Offshore thickened oil thermal recovery wellhead lifting monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410205826.1A CN104005749A (en) | 2014-05-15 | 2014-05-15 | Offshore thickened oil thermal recovery wellhead lifting monitoring device |
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| CN104005749A true CN104005749A (en) | 2014-08-27 |
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| CN201410205826.1A Pending CN104005749A (en) | 2014-05-15 | 2014-05-15 | Offshore thickened oil thermal recovery wellhead lifting monitoring device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110847883A (en) * | 2018-07-24 | 2020-02-28 | 中国石油天然气股份有限公司 | Wellhead device lifting height prediction method |
| CN114000850A (en) * | 2021-12-31 | 2022-02-01 | 纬达石油装备有限公司 | Straight-through type thermal recovery casing head and using method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4582132A (en) * | 1983-11-14 | 1986-04-15 | Chevron Research Company | Wellhead expansion assembly |
| CN101324178A (en) * | 2008-07-09 | 2008-12-17 | 中国海洋石油总公司 | Casing tube heightening well head safety compensation apparatus |
| CN201228545Y (en) * | 2008-06-16 | 2009-04-29 | 李润成 | Compensating mechanism for connection of thermal wellhead and ground pipeline |
| CN201241654Y (en) * | 2008-08-15 | 2009-05-20 | 胜利油田胜机石油装备有限公司 | Thermal production well head apparatus on the sea |
| CN201908585U (en) * | 2010-12-23 | 2011-07-27 | 中国石油集团渤海钻探工程有限公司 | Follow-up balanced type casing compensator |
| CN103267601A (en) * | 2013-05-07 | 2013-08-28 | 山东科技大学 | Goaf overlying stratum movement stability monitoring system and stability monitoring distinguishing method |
| CN203835374U (en) * | 2014-05-15 | 2014-09-17 | 中国海洋石油总公司 | Wellhead ascension monitoring device for offshore heavy oil thermal recovery |
-
2014
- 2014-05-15 CN CN201410205826.1A patent/CN104005749A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4582132A (en) * | 1983-11-14 | 1986-04-15 | Chevron Research Company | Wellhead expansion assembly |
| CN201228545Y (en) * | 2008-06-16 | 2009-04-29 | 李润成 | Compensating mechanism for connection of thermal wellhead and ground pipeline |
| CN101324178A (en) * | 2008-07-09 | 2008-12-17 | 中国海洋石油总公司 | Casing tube heightening well head safety compensation apparatus |
| CN201241654Y (en) * | 2008-08-15 | 2009-05-20 | 胜利油田胜机石油装备有限公司 | Thermal production well head apparatus on the sea |
| CN201908585U (en) * | 2010-12-23 | 2011-07-27 | 中国石油集团渤海钻探工程有限公司 | Follow-up balanced type casing compensator |
| CN103267601A (en) * | 2013-05-07 | 2013-08-28 | 山东科技大学 | Goaf overlying stratum movement stability monitoring system and stability monitoring distinguishing method |
| CN203835374U (en) * | 2014-05-15 | 2014-09-17 | 中国海洋石油总公司 | Wellhead ascension monitoring device for offshore heavy oil thermal recovery |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110847883A (en) * | 2018-07-24 | 2020-02-28 | 中国石油天然气股份有限公司 | Wellhead device lifting height prediction method |
| CN114000850A (en) * | 2021-12-31 | 2022-02-01 | 纬达石油装备有限公司 | Straight-through type thermal recovery casing head and using method thereof |
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Application publication date: 20140827 |
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