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Pulse neutron oxygen activation water absorption profile test device and construction technology in offshore platform

A technology of pulsed neutron and water absorption profile, applied in wellbore/well components, construction, earth-moving drilling, etc., can solve the problem of inability to carry out oxygen activation test and construction, and achieve the effect of wide field application prospects.

Active Publication Date: 2021-03-26
胜利油田畅海石油技术有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to address the above-mentioned defects in the prior art, to provide a pulse neutron oxygen activation water absorption profile test device and construction technology in the offshore platform, which solves the problem that the prior art cannot carry out the oxygen activation test construction on the offshore satellite platform problems, especially for operations in confined spaces on offshore platforms

Method used

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  • Pulse neutron oxygen activation water absorption profile test device and construction technology in offshore platform
  • Pulse neutron oxygen activation water absorption profile test device and construction technology in offshore platform
  • Pulse neutron oxygen activation water absorption profile test device and construction technology in offshore platform

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Embodiment 1

[0024] Embodiment 1, with reference to attached Figure 1-3 , a pulse neutron oxygen activated water absorption profile test device in the offshore platform mentioned in the present invention, its technical solution is: comprising a construction tower 1, a blowout preventer 2, a wax removal gate 3, a ground pulley 4, and a blowout prevention box 5 , sky pulley 6, blowout preventer 7, steel wire winch 8; a fixed construction tower 1 is installed above the wax removal gate 3 of the oil tree 9, and a blowout preventer 2 is installed on the inside of the tower to connect with the wax removal gate 3, and the blowout preventer The ground pulley 4 is installed under the blowout prevention nipple, and is connected to the lower end of the blowout prevention pipe 7 through a union. The blowout prevention box 5 is installed at the upper end of the blowout prevention pipe. Press the pipeline, and install the overflow pipeline on the quick interface at the upper end of the outer side; the ...

Embodiment 2

[0036] Embodiment 2, with reference to attached Figure 4 , a pulse neutron oxygen activation water absorption profile test device for water injection wells in the confined space of offshore platforms mentioned in the present invention;

[0037] A fixed construction tower is installed above the wax removal gate of the oil tree, and a blowout preventer is installed on the inside of the tower to connect with the wax removal gate. Blowout prevention box, sky pulley is installed on the upper part of the blowout prevention box, the pressure pipeline is installed on the quick interface at the lower end of the outer side of the anti-blowout box, and the overflow pipeline is installed on the quick interface at the upper end of the outer side;

[0038] The steel wire cable is released from the drum of the hydraulic winch, and after being guided by the upper pulley of the BOP, it is guided upward by the sky pulley for a second time, and then passed downward to the spray box and connecte...

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Abstract

The invention relates to a testing device for a pulse neutron oxygen activation water injection profile in an offshore platform and a construction process. According to the technical scheme, a construction tower is fixedly mounted above a paraffin removal gate of a Christmas tree, a blowout preventer is mounted on the inner side of the tower to be connected with the paraffin removal gate, a groundpulley is mounted below a blowout preventing nipple of the blowout preventer, the blowout preventer is connected with the lower end of a blowout preventing pipe through a union, a blowout preventingbox is mounted at the upper end of the blowout preventing pipe, a top pulley is mounted on the upper part of the blowout preventing box, a pressing pipeline is mounted on a rapid interface at the lower end of the outer side of the blowout preventing box, and an overflow pipeline is mounted on a rapid interface at the upper end of the outer side of the blowout preventing box. A steel wire cable isunwound from a roller of a steel wire winch, and after being guided by the ground pulley on the upper part of the blowout preventer, the steel wire cable is secondarily guided upwards through the toppulley and then is downwards conveyed into the blowout preventing box to be connected with a testing instrument rope socket. The testing device has the beneficial effects that the testing device can be used for offshore oilfield oxygen activation testing construction, water injection well pulse neutron oxygen activation water injection profile testing construction is safely and efficiently carriedout in limited space of an offshore satellite platform, and wide field application prospects are achieved.

Description

technical field [0001] The invention relates to the technical field of testing oilfield water injection wells, in particular to a pulse neutron oxygen activation water absorption profile testing device and construction technology in an offshore platform. Background technique [0002] At present, when the pulse neutron oxygen activation water absorption profile test of water injection wells is carried out on land, cranes are used as auxiliary machinery to connect and install the lubricator and to lower the auxiliary oxygen activation test instruments. However, during the construction of the offshore platform, the satellite platform does not have a crane due to environmental restrictions, and the operating space is limited. The existing offshore oxygen activation test construction methods are divided into two types: one is to test the construction of the water injection well on the offshore satellite platform. The hydraulic lifting device lifts the blowout preventer from the h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B23/00E21B23/01E21B47/001
CPCE21B23/00E21B23/01E21B47/001
Inventor 张立亭王辉李国李亮
Owner 胜利油田畅海石油技术有限公司