CN102116146A - Electric submersible pump testing pipe string used under condition of underwater wellhead - Google Patents
Electric submersible pump testing pipe string used under condition of underwater wellhead Download PDFInfo
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- CN102116146A CN102116146A CN2009102439968A CN200910243996A CN102116146A CN 102116146 A CN102116146 A CN 102116146A CN 2009102439968 A CN2009102439968 A CN 2009102439968A CN 200910243996 A CN200910243996 A CN 200910243996A CN 102116146 A CN102116146 A CN 102116146A
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- submersible pump
- cable
- electric submersible
- pump testing
- hanger
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Abstract
The invention relates to an electric submersible pump testing pipe string used under the condition of underwater wellhead. The electric submersible pump testing pipe string is provided with an electric cable bridge, wherein the electric cable bridge, which is spindle-shaped, is positioned above a hanger of the electric submersible pump testing pipe string, connected with the hanger through an oil pipe, and provided with an oil gas channel used for oil gas to pass through and an electric cable traversing channel used for an electric cable to traverse. The electric submersible pump testing pipe string used under the condition of underwater wellhead is provided with the electric cable bridge, so that the electric cable of the electric submersible pump testing pipe string can pass through a blowout preventer below a water surface, and also enable the electric cable to avoid from being clamped and damaged by a clamping flashboard. The electric submersible pump testing pipe string provided by the invention can be suitable for mechanical recovery testing operation under the condition of underwater wellhead, can better evaluate and develop offshore oil fields, and has great economic benefits and social benefits.
Description
Technical field
The present invention relates to the electric submersible pump testing tube string of oil-gas mining operation, more particularly, relate to the electric submersible pump testing tube string under a kind of underwater well head condition.
Background technology
At present, worldwide, surpassing 100 meters exploratory engineering of off-shore petroleum/gas reservoir and estimate in the depth of water all is to hold brill by floating drilling rig, utilizes subsea equipment to set up closed cycle by preventer and marine riser under water and finishes drilling well and hydrocarbon test appraisal.And at floating drilling rig, marine riser, carry out the electric submersible pump test jobs under preventer and the underwater well head condition for the low running ground of low pressure or normal pressure, particularly very important meaning is arranged under water for deep water formation evaluation with long marine riser.
Do not carry out the ripe supporting technology of electric submersible pump test and use experience under the well head condition but have as yet at present under water.Owing to be subjected to the crooked and swing of heave, translation, pitching and rolling, the marine riser of severe sea condition, floating drilling rig, the influence of the factor of operation such as blowout preventer set, underwater well head under water, the electric submersible pump application under the well head condition under water fails always.
Carrying out the machine reconnaissance both at home and abroad on floating drilling rig studies in the history of industry, once because of the heave problem of floating drilling rig, cable crossing problem, packer setting problem, cable the fixation problem on the testing tube string etc. cause outage cable bit freezing, power down cable clamp bit freezing, electronic pressure gauge fall well, have to trip out again complex accident such as tubing string after setting inefficacy, cause overhaul, salvaging even well to be scrapped, caused to reach the huge economic loss of tens million of units.
Carrying out the electric submersible pump test under the domestic condition of well head under water once had secondary to attempt, and finally all ended in failure, and twice all the crowded bad cable of preventer is closed in appearance, the outage cable causes the overhaul accident.But mainly be owing to do not have multi-functional private cable bridge, do not have special tool and equipment such as the testing tree under water that current supply cable passes through, length-adjustable test hanger, quality cables clamp, be in particular in following some:
The cable of electric submersible pump is easily blocked by flashboard during by the preventer more than the following mud line of the water surface, makes cable insulation destroyed;
The heave of the semisubmersible drilling platform that uses under the underwater well head condition, displacement meeting cause damage to cable;
Electric pump pipe string can't utilize subsea production tree to meet an urgent need to free etc. during typhoon protection.
Summary of the invention
The object of the present invention is to provide the electric submersible pump testing tube string under a kind of underwater well head condition.
The technical solution adopted for the present invention to solve the technical problems is: construct the electric submersible pump testing tube string under a kind of underwater well head condition, described electric submersible pump testing tube string has cable bridge, described cable bridge is positioned at the top of the hanger of described electric submersible pump testing tube string, described cable bridge is connected with described hanger by oil pipe, described cable bridge is a spindle, and described cable bridge has and is used for the gas channel that oil gas passes through and is used for the cable passage lanes that cable passes.
In the electric submersible pump testing tube string under underwater well head condition of the present invention, described cable bridge comprises the center oil pipe that is positioned at the center and is positioned at peripheral sleeve pipe, be filled with rubber between described center oil pipe and the sleeve pipe, also have between described center oil pipe and the sleeve pipe along four uniform guide strips of center oil pipe periphery, described cable bridge also has and is used for the small-bore oil pipe that cable passes, and described small-bore oil pipe is between two adjacent guide strips.
In the electric submersible pump testing tube string under underwater well head condition of the present invention, the upper end of described small-bore oil pipe is connected with cable gland.
In the electric submersible pump testing tube string under underwater well head condition of the present invention, described hanger is a spindle, and described hanger has and is used for the cable passage that gas channel that oil gas passes through and cable pass.
In the electric submersible pump testing tube string under underwater well head condition of the present invention, described hanger is the adjustable-length hanger.
In the electric submersible pump testing tube string under underwater well head condition of the present invention, between described cable bridge and hanger, also has the cable protection device.
Implement the electric submersible pump testing tube string under the underwater well head condition of the present invention, have following beneficial effect: the electric submersible pump testing tube string under the underwater well head condition of the present invention has cable bridge, make the preventer that the cable of electric submersible pump testing tube string can be by below the water surface, prevent to be blocked flashboard and block and go to pot.Electric submersible pump testing tube string of the present invention can be applicable to that the machine reconnaissance under the underwater well head condition studies industry, can better estimate and develop offshore oilfield, has huge economic benefit and social benefit.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the schematic diagram of the electric submersible pump testing tube string under the underwater well head condition of the present invention;
Fig. 2 is the cable bridge of the electric submersible pump testing tube string under the underwater well head condition of the present invention and the schematic diagram of hanger;
Fig. 3 is the structural representation of the cable bridge of the electric submersible pump testing tube string under the underwater well head condition of the present invention;
Fig. 4 is an A-A sectional drawing among Fig. 3.
Among the figure: 1; mobile head, 2; oil pipe, 3; cable bridge; 4; adjust pipe nipple, 5; hanger, 6; oil pipe; 7; circulating valve, 8; circulating valve, 9; packer; 10; cable, 11; adjustable pipe nipple, 12; unidirectional shear valve; 13; pump discharge, 14; electric submersible pump, 15; eliminator; 16; Pump Suction Nozzle, 17; protector, 18; motor; 19; the pump monitoring of working condition, 20; manometer, 21; oil pipe; 22; plug with holes, 23; omnipotent preventer, 24; shear ram; 25; the cable protection device, 31; the center oil pipe, 32; sleeve pipe; 33; guide strip, 34; rubber; 35; small-bore oil pipe, 36; cable gland.
The specific embodiment
As shown in Figure 1; an embodiment for the electric submersible pump testing tube string under the underwater well head condition of the present invention; comprise flowing 1, oil pipe 2, cable bridge 3, adjusting pipe nipple 4, hanger 5, oil pipe 6, circulating valve 7, circulating valve 8, packer 9, adjustable pipe nipple 11, unidirectional shear valve 12, electric submersible pump 14, eliminator 15, Pump Suction Nozzle 16, protector 17, motor 18 of being connected in turn from top to bottom; pump monitoring of working condition 19, manometer 20, oil pipe 21, plug with holes 22, cable 10 pass cable bridge 3, hanger 5 and packer 9 and are incorporated into motor 18.
Referring to Fig. 2; Fig. 3 and Fig. 4; for the cable 10 that makes electric submersible pump testing tube string can pass omnipotent preventer 23 below the water surface smoothly; not being sheared flashboard 24 again blocks; prevent from when omnipotent preventer 23 cuts out, can protect cable not to be squeezed; in electric submersible pump testing tube string of the present invention, insert fusiform cable bridge 3; because cable bridge 3 has fusiform profile; make cable bridge 3 can be smoothly by omnipotent preventer 23 with shear card lock 24 and be unlikely to occur resistance and hang phenomenon, cable device 3 has and is used for the gas channel that oil gas passes through and is used for the cable passage lanes that cable passes.The concrete structure of cable bridge 3 as shown in Figure 3 and Figure 4, cable bridge 3 comprises the center oil pipe 31 that is positioned at the center and is positioned at peripheral sleeve pipe 32, be filled with rubber 34 between center oil pipe 31 and the sleeve pipe 32, also have between center oil pipe 31 and the sleeve pipe 32 along four uniform guide strips 33 of center oil pipe 31 peripheries, cable bridge 3 also has and is used for the small-bore oil pipe 35 that cable 10 passes, small-bore oil pipe 35 is between two adjacent guide strips 33, in order to guarantee sealing, the top of small-bore oil pipe 35 is connected with cable gland 36, and cable 10 passes cable gland 36 and small-bore oil pipe 35 extends downwards.When closing omnipotent preventer 23, on the omnipotent preventer 23 cutting ferrule pipes 32, and can not make extruding to cable 10, guarantee the safety of cable 10.
In order to make hanger 5 pass through omnipotent preventer 23 smoothly, make hanger 5 have certain effect placed in the middle simultaneously, hanger 5 also is designed to spindle.Hanger 5 is the adjustable-length hanger, can adjust the position of hanger by the coarse thread of center of rotation.Hanger 5 has and is used for the gas channel that oil gas passes through and is used for the cable passage that cable passes.When cable passes through hanger, cable is pressed into, adopts again and utilize after the sealing of side direction special molding caulking gum side direction metal voussoir to fix and seal by the side direction of hanger.Guarantee cable seal and fixation.Play the effect of placed in the middle and suspended tubes string.Make cable pass hanger,, both guaranteed that cable was not subjected to the heave of platform and the influence of displacement, can avoid the swing of hanger again with the testing tube string of lower part.
When typhoon occurring, can meet an urgent need and free, specifically be to unload hanger and cable passes through joint, cuts off cable, can realize emergent the freeing of electric submersible pump testing tube string.
In order to protect cable, between cable bridge 3 and hanger 5, be provided with cable protection device 25, adopt the cable protection device of steel to substitute the cable protection device that has cast iron now, can guarantee safe operation under the dynamic loading operating mode.In order to adapt to the work dynamic load operating mode of semi-submerged platform, also designed the bird-caging large-diameter cable protector of marine riser special use in addition, prevented that power cable is because of the dynamic load wear out failure.
Electric submersible pump testing tube string of the present invention has overcome the shortcoming of prior art, be applicable to the machine reconnaissance trial work work under the underwater well head condition, utilize this machine reconnaissance test tube string, can better estimate and develop, have huge economic benefit and social benefit offshore oilfield.
In conjunction with the accompanying drawings embodiments of the invention are described above; but the present invention is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment only is schematic; rather than it is restrictive; those of ordinary skill in the art is under enlightenment of the present invention; not breaking away under the scope situation that aim of the present invention and claim protect, also can make a lot of forms, these all belong within the protection of the present invention.
Claims (6)
1. the electric submersible pump testing tube string under the underwater well head condition, it is characterized in that, described electric submersible pump testing tube string has cable bridge, described cable bridge is positioned at the top of the hanger of described electric submersible pump testing tube string, described cable bridge is connected with described hanger by oil pipe, described cable bridge is a spindle, and described cable bridge has and is used for the gas channel that oil gas passes through and is used for the cable passage lanes that cable passes.
2. the electric submersible pump testing tube string under the underwater well head condition according to claim 1, it is characterized in that, described cable bridge comprises the center oil pipe that is positioned at the center and is positioned at peripheral sleeve pipe, be filled with rubber between described center oil pipe and the sleeve pipe, also have between described center oil pipe and the sleeve pipe along four uniform guide strips of center oil pipe periphery, described cable bridge also has and is used for the small-bore oil pipe that cable passes, and described small-bore oil pipe is between two adjacent guide strips.
3. the electric submersible pump testing tube string under the underwater well head condition according to claim 2 is characterized in that the upper end of described small-bore oil pipe is connected with cable gland.
4. the electric submersible pump testing tube string under the underwater well head condition according to claim 3 is characterized in that described hanger is a spindle, and described hanger has and is used for the cable passage that gas channel that oil gas passes through and cable pass.
5. the electric submersible pump testing tube string under the underwater well head condition according to claim 4 is characterized in that described hanger is the adjustable-length hanger.
6. the electric submersible pump testing tube string under the underwater well head condition according to claim 5 is characterized in that, also has the cable protection device between described cable bridge and hanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102439968A CN102116146A (en) | 2009-12-30 | 2009-12-30 | Electric submersible pump testing pipe string used under condition of underwater wellhead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102439968A CN102116146A (en) | 2009-12-30 | 2009-12-30 | Electric submersible pump testing pipe string used under condition of underwater wellhead |
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| CN102116146A true CN102116146A (en) | 2011-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009102439968A Pending CN102116146A (en) | 2009-12-30 | 2009-12-30 | Electric submersible pump testing pipe string used under condition of underwater wellhead |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103397862A (en) * | 2013-08-13 | 2013-11-20 | 成都希能能源科技有限公司 | Hanger |
| CN105604509A (en) * | 2016-03-03 | 2016-05-25 | 中国海洋石油总公司 | Electric submersible pump pipe string for optical fiber monitoring of horizontal well |
| CN106593314A (en) * | 2016-12-20 | 2017-04-26 | 中国石油天然气股份有限公司 | Deepwater high-temperature high-pressure oil-gas well testing pipe column |
| CN113323623A (en) * | 2021-06-21 | 2021-08-31 | 中国海洋石油集团有限公司 | Subsea production tree system for oil pipe electric submersible pump operation |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2747353Y (en) * | 2004-11-16 | 2005-12-21 | 东营市东营区创新科技有限公司 | Well head device for electric pump well |
| CN201621055U (en) * | 2009-12-30 | 2010-11-03 | 中国海洋石油总公司 | Electric submersible pump test tube string under underwater wellhead condition |
-
2009
- 2009-12-30 CN CN2009102439968A patent/CN102116146A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2747353Y (en) * | 2004-11-16 | 2005-12-21 | 东营市东营区创新科技有限公司 | Well head device for electric pump well |
| CN201621055U (en) * | 2009-12-30 | 2010-11-03 | 中国海洋石油总公司 | Electric submersible pump test tube string under underwater wellhead condition |
Non-Patent Citations (2)
| Title |
|---|
| 唐海雄等: "半潜式钻井平台创新型电潜泵测试工艺", 《石油天然气学报》 * |
| 唐海雄等: "浮式钻井装置电潜泵测试关键技术及其应用", 《中国海上油气》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103397862A (en) * | 2013-08-13 | 2013-11-20 | 成都希能能源科技有限公司 | Hanger |
| CN103397862B (en) * | 2013-08-13 | 2016-06-22 | 成都希能能源科技有限公司 | A kind of hanger |
| CN105604509A (en) * | 2016-03-03 | 2016-05-25 | 中国海洋石油总公司 | Electric submersible pump pipe string for optical fiber monitoring of horizontal well |
| CN106593314A (en) * | 2016-12-20 | 2017-04-26 | 中国石油天然气股份有限公司 | Deepwater high-temperature high-pressure oil-gas well testing pipe column |
| CN113323623A (en) * | 2021-06-21 | 2021-08-31 | 中国海洋石油集团有限公司 | Subsea production tree system for oil pipe electric submersible pump operation |
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Application publication date: 20110706 |