CN103953316A - Offshore oil gas field exploiting system - Google Patents
Offshore oil gas field exploiting system Download PDFInfo
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- CN103953316A CN103953316A CN201410142656.7A CN201410142656A CN103953316A CN 103953316 A CN103953316 A CN 103953316A CN 201410142656 A CN201410142656 A CN 201410142656A CN 103953316 A CN103953316 A CN 103953316A
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Abstract
The invention relates to an offshore oil gas field exploiting system which is characterized by comprising a crude oil storage tank arranged on a seabed, wherein the inlet of the crude oil storage tank is communicated with an oil gas exploiting device by virtue of an oil delivery pipe; the outlet of the crude oil storage tank is communicated with a crude oil output float bowl which floats on the sea surface. According to the offshore oil gas field exploiting system, the crude oil storage tank is transferred to the seabed from a platform, so that the area, volume and load bearing of the platform are greatly reduced, meanwhile various problems brought by the overlarge volume and load bearing are also solved, and the crude oil gas storage amount is also greatly improved; in addition, the crude oil storage tank is positioned in water, so that the occurrence possibility of potential safety hazards such as fire hazards is greatly reduced, furthermore equipment such as fire fighting devices can be omitted, and the whole system is simpler and more reliable.
Description
Technical field
The present invention relates to exploitation of oil-gas field field, particularly about a kind of offshore oil and gas field mining system.
Background technology
There are a lot of difficulties in the exploitation of the relatively traditional land oil gas field of offshore oil and gas field.At present, the following two kinds of modes of the general employing of offshore oil and gas field exploitation: first kind of way is that the jacket by being fastenedly connected on sea bed supports fixed platform.The production tree of this mode is positioned on fixed platform, first the oil gas of exploiting out be transported to by standpipe the oil gas treatment facility being arranged on fixed platform and process, then by oil pipeline or the afloat oil tanker that shuttles back and forth, the oil gas of handling well is defeated outward, this mode is generally applicable to shallow sea water.The second way is to adopt floating platform and subsea production tree to combine.The production tree of this mode is positioned on sea bed, and the treatment facility that first oil gas of exploiting out be delivered to top floating platform by standpipe is processed, and then adopts seabed pipeline or shuttle tanker by outer oil gas after treatment defeated.This mode is subject to depth of water restriction less, is generally applicable to waters comparatively widely, is more a kind of mode that current deep water sea area oil and gas development adopts.
For above-mentioned two kinds of modes, in the time that the oil gas of exploiting out is cannot be outward defeated, the oil gas after stores processor on the spot.The method of conventional storage oil gas is that crude oil storage tank is installed on platform, and crude oil storage tank is arranged on that on platform, there are the following problems: 1) occupy very large area and load capacity of platform, increase platform investment; 2) crude oil storage tank is a very large dangerous matter sources to platform because oil gas is combustible and explosive articles, as breaking out of fire or blast will cause great danger to platform oil gas treatment facility and operator safety; Breaking out of fire or blast, also will cause fatal consequence to export tanker when defeated outside oil gas; 3) in the time that bad weather carries out crude oil exporting operation, export tanker alongside platform is very difficult, and the probability bumping between export tanker and platform increases.
Summary of the invention
For the problems referred to above, the object of this invention is to provide a kind of offshore oil and gas field mining system, to be applicable to various marine sites, reduce platform area, volume, load-bearing simultaneously, increase oil in reserve tolerance, and reduce the probability that the potential safety hazards such as fire occur.
For achieving the above object, the present invention takes following technical scheme: a kind of offshore oil and gas field mining system, it is characterized in that: it comprises that one is arranged on the crude oil storage tank on sea bed, the import of described crude oil storage tank is communicated with an oil-gas mining device by a petroleum pipeline, and the outlet of described crude oil storage tank is communicated with a floating crude oil exporting floating drum across the sea by another petroleum pipeline.
Described oil-gas mining device comprises that a bottom is fastenedly connected the jacket on sea bed, the top of described jacket is fastenedly connected a fixed platform, on described fixed platform, arrange production tree and crude oil treating apparatus, the output of described production tree and crude oil treating apparatus is communicated with the import of described crude oil storage tank by described petroleum pipeline.
Described oil-gas mining device comprises that one is positioned at the oil extraction equipment on sea bed, one is arranged on the floating platform on sea level, described oil extraction equipment top, on described floating platform, arrange crude oil treating apparatus, described oil extraction equipment and crude oil treating apparatus are communicated with by a standpipe, and the output of described crude oil treating apparatus is communicated with the import of described crude oil storage tank by described another petroleum pipeline.
Described oil extraction equipment comprises some production trees that are fastenedly connected on sea bed, described in each, the oil gas vent of production tree is all communicated with a manifold by a jumper pipe, on described manifold, offer some outlets, each outlet is all communicated with the entrance of described standpipe by an expansion bends.
Described another petroleum pipeline adopts flexible hose.
The inside and outside corrosion-inhibiting coating that is coated with of described crude oil storage tank, and outside protect by sacrificial anode, the Thickness Design of described crude oil storage tank has the corrosion allowance that meets application life; The fluid level transmitter of its import of one control and rate of discharge is set on described crude oil storage tank; Described crude oil storage tank top arranges a tandem to the pipeline on platform.
The power source of crude oil exporting adopts and is arranged on the output pump on sea bed or is arranged on the electric submersible pump in described crude oil storage tank.
The present invention is owing to taking above technical scheme, it has the following advantages: because the present invention is transferred to sea bed by crude oil storage tank by platform, therefore, greatly reduce area, volume and the load-bearing of platform, also solved due to volume and the excessive variety of issue bringing of load-bearing simultaneously, also greatly increase and stored former oil and gas content, in addition, because crude oil storage tank is in water, thereby greatly reduce the possibility that the potential safety hazards such as fire occur, the deposit that has further reduced fire fighting device etc., makes whole system more simple and reliable.
Brief description of the drawings
Fig. 1 is the overall structure schematic diagram of the embodiment of the present invention 1
Fig. 2 is the overall structure schematic diagram of the embodiment of the present invention 2
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in detail.
Embodiment 1:
As shown in Figure 1, the offshore oil and gas field mining system that the present embodiment provides comprises that a bottom is fastenedly connected the jacket 1 on sea bed, the top of jacket 1 is fastenedly connected a fixed platform 2, on platform 2, arrange production tree and crude oil treating apparatus 3, the output of production tree and crude oil treating apparatus 3 is communicated with by a standpipe 4 one end that is positioned at the pipeline 5 on sea bed, the other end of pipeline 5 is communicated with the import that is positioned at the crude oil storage tank 6 on sea bed, and the outlet of crude oil storage tank 6 is communicated with a crude oil exporting floating drum 8 floating on sea level by a pipeline 7.
Embodiment 2:
As shown in Figure 2, the offshore oil and gas field mining system that the present embodiment provides comprises that one is positioned at the oil extraction equipment 9 on sea bed, one is arranged on the floating platform 10 on oil extraction equipment 9 sea level, top, on floating platform 10, arrange crude oil treating apparatus 11, oil extraction equipment 9 and crude oil treating apparatus 11 are communicated with by a standpipe 12, the output of crude oil treating apparatus 11 is communicated with by a standpipe 13 entrance that is positioned at the crude oil storage tank 14 on sea bed, and the outlet of crude oil storage tank 14 is communicated with a crude oil exporting floating drum 16 floating on sea level by a pipeline 15.
In the above-described embodiments, oil extraction equipment 9 comprises some production trees 90 that are fastenedly connected on sea bed, the oil gas vent of each production tree 90 is all communicated with a manifold 92 by a jumper pipe 91, offers some outlets on manifold 92, and each outlet is all communicated with the entrance of standpipe 12 by an expansion bends 93.
In the above-described embodiments, pipeline 7 and pipeline 15 all adopt flexible hose.
In the above-described embodiments, crude oil storage tank 6 and the 14 inside and outside corrosion-inhibiting coatings that are coated with, and outside protect by sacrificial anode, the Thickness Design of crude oil storage tank 6 and 14 has the corrosion allowance that meets application life.The fluid level transmitter of its import of one control and rate of discharge is set on crude oil storage tank 6 and 14.Crude oil storage tank 6 and 14 tops arrange the pipeline of for a moment receiving on platform, and in the time of normal production and outer transporting operation, pipeline plays the effect of breather valve, to protect the safety of crude oil storage tank.
In the above-described embodiments, crude oil exporting utilization is arranged on the output pump on sea bed or is arranged on the electric submersible pump realization in crude oil storage tank 6 and 14.
Describe using method of the present invention below in detail:
When defeated outside the crude oil in crude oil storage tank 6 or 14 is stored into a certain amount of needs, the input of export tanker (not shown) is connected with floating drum 8 or 16, will be stored in Crude Oil Transportation in crude oil storage tank 6 or 14 in oil tanker by the electric submersible pump (not shown) in crude oil pump or crude oil storage tank 6 and 14.When crude oil exporting, in the time that crude oil storage tank 6 and 14 liquid levels rise to fluid level transmitter setting value, reduce inlet flow rate warning reminding operator simultaneously; When crude oil storage tank 6 and 14 liquid levels are low to fluid level transmitter when setting value, turn-off output pump or electric submersible pump warning reminding operator simultaneously.
The various embodiments described above are only for illustrating the present invention; wherein the structure of each parts, connected mode and manufacture craft etc. all can change to some extent; every equivalents of carrying out on the basis of technical solution of the present invention and improvement, all should not get rid of outside protection scope of the present invention.
Claims (10)
1. an offshore oil and gas field mining system, it is characterized in that: it comprises that one is arranged on the crude oil storage tank on sea bed, the import of described crude oil storage tank is communicated with an oil-gas mining device by a petroleum pipeline, and the outlet of described crude oil storage tank is communicated with a floating crude oil exporting floating drum across the sea by another petroleum pipeline.
2. a kind of offshore oil and gas field mining system as claimed in claim 1, it is characterized in that: described oil-gas mining device comprises that a bottom is fastenedly connected the jacket on sea bed, the top of described jacket is fastenedly connected a fixed platform, on described fixed platform, arrange production tree and crude oil treating apparatus, the output of described production tree and crude oil treating apparatus is communicated with the import of described crude oil storage tank by described petroleum pipeline.
3. a kind of offshore oil and gas field mining system as claimed in claim 1, it is characterized in that: described oil-gas mining device comprises that one is positioned at the oil extraction equipment on sea bed, one is arranged on the floating platform on sea level, described oil extraction equipment top, on described floating platform, arrange crude oil treating apparatus, described oil extraction equipment and crude oil treating apparatus are communicated with by a standpipe, and the output of described crude oil treating apparatus is communicated with the import of described crude oil storage tank by described another petroleum pipeline.
4. a kind of offshore oil and gas field mining system as claimed in claim 3, it is characterized in that: described oil extraction equipment comprises some production trees that are fastenedly connected on sea bed, described in each, the oil gas vent of production tree is all communicated with a manifold by a jumper pipe, on described manifold, offer some outlets, each outlet is all communicated with the entrance of described standpipe by an expansion bends.
5. a kind of offshore oil and gas field mining system as claimed in claim 1 or 2 or 3 or 4, is characterized in that: described another petroleum pipeline adopts flexible hose.
6. a kind of offshore oil and gas field mining system as claimed in claim 1 or 2 or 3 or 4, it is characterized in that: the inside and outside corrosion-inhibiting coating that is coated with of described crude oil storage tank, and outside is protected by sacrificial anode, and the Thickness Design of described crude oil storage tank has the corrosion allowance that meets application life; The fluid level transmitter of its import of one control and rate of discharge is set on described crude oil storage tank; Described crude oil storage tank top arranges a tandem to the pipeline on platform.
7. a kind of offshore oil and gas field mining system as claimed in claim 5, it is characterized in that:, the inside and outside corrosion-inhibiting coating that is coated with of described crude oil storage tank, and outside protect by sacrificial anode, the thickness of described crude oil storage tank has the corrosion allowance that meets application life; The fluid level transmitter of its import of one control and rate of discharge is set on described crude oil storage tank; Described crude oil storage tank top arranges a tandem to the pipeline on platform.
8. a kind of offshore oil and gas field mining system as claimed in claim 1 or 2 or 3 or 4, is characterized in that: the power source of crude oil exporting adopts and is arranged on the output pump on sea bed or is arranged on the electric submersible pump in described crude oil storage tank.
9. a kind of offshore oil and gas field mining system as claimed in claim 5, is characterized in that: the power source of crude oil exporting adopts and is arranged on the output pump on sea bed or is arranged on the electric submersible pump in described crude oil storage tank.
10. a kind of offshore oil and gas field mining system as claimed in claim 7, is characterized in that: the power source of crude oil exporting adopts and is arranged on the output pump on sea bed or is arranged on the electric submersible pump in described crude oil storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410142656.7A CN103953316A (en) | 2014-04-10 | 2014-04-10 | Offshore oil gas field exploiting system |
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| CN201410142656.7A CN103953316A (en) | 2014-04-10 | 2014-04-10 | Offshore oil gas field exploiting system |
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| CN103953316A true CN103953316A (en) | 2014-07-30 |
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| CN201410142656.7A Pending CN103953316A (en) | 2014-04-10 | 2014-04-10 | Offshore oil gas field exploiting system |
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Cited By (1)
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| CN116923651A (en) * | 2023-07-05 | 2023-10-24 | 江苏西沙科技有限公司 | Floating type production oil storage device |
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