A kind of oil pipe lowering method

A tubing and lower layer technology, which is applied in the field of tubing running, can solve problems such as irregular tubing make-up curves, unstable tubing pressure tests, and safety risks for offshore operators, so as to improve the timeliness of well completion operations, improve service life, optimize The effect of the number of pressure tests

Active Publication Date: 2020-08-21
CHINA NAT OFFSHORE OIL CORP +1
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The downside of this tubing operation procedure is that the make-up curve of the tubing is not standardized, the pressure test of the tubing is unstable, and the annulus of the tubing is under pressure, which poses a serious safety risk to offshore operators

Method used

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  • A kind of oil pipe lowering method
  • A kind of oil pipe lowering method
  • A kind of oil pipe lowering method

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Embodiment Construction

[0052] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

[0053] see Figure 1 to Figure 3 , the tubing running method provided in this embodiment includes the following steps:

[0054] In step A, the oil pipe is hoisted to the deck by using a sling; compared with the wire rope in the prior art, the sling can avoid damage to the outer wall of the oil pipe.

[0055] Step B: Arrange the oil pipes on the deck in a multi-layered manner, use sleeper pads between the adjacent upper and lower oil pipes, and arrange the adjacent oil pipes on the same layer at intervals to prevent the oil pipes from colliding with each other and facilitate Follow-up cleaning work. The oil pipes are arranged on the deck in a multi-layer manner, and as many oil pipes as possible can be placed in the limited space of the deck, and various treatments can be performed on the oil pipes...

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Abstract

The invention discloses an oil tube landing method, and belongs to the technical field of oil and gas exploitation. The oil tube landing method comprises the following steps that a sling is used to hoist oil tubes to a deck; the oil tubes are arranged on the deck in a multi-layer mode, a sleeper liner is used between each pair of adjacent upper-layer and lower-layer oil tubes, adjacent oil tubes located at a same layer are arranged at intervals; a thread protector is disassembled, a male thread and a female thread of each oil tube are cleaned, after cleaning, thread compounds are applied on the male thread and female thread of the corresponding oil tube; before cleaning and / or after cleaning, each oil tube is checked, the oil tubes which do not meet standards of screw threads and oil tubebodies are marked and strictly forbidden to enter a well; the sizes of the oil tubes reaching the standards are measured and recorded, and the oil tubes are numbered; and the oil tubes reaching the standards enter the well according to the numbering sequence. The oil tube landing method has the advantages that the percent of pass of oil tube screwing on is improved, and the problem of the oil jacket annulus under pressure is effectively solved.

Description

technical field [0001] The invention relates to the technical field of oil and gas exploitation, in particular to a method for running an oil pipe. Background technique [0002] In the process of running traditional gas-tight tubing, especially on offshore drilling platforms, the work site is small, and usually the tubing is directly run into the well with pull-in and make-up after measuring the tubing. [0003] The disadvantages of this tubing lowering operation procedure are that the make-up curve of the tubing is not standardized, the pressure test of the tubing is unstable, and the annulus of the oil casing is under pressure, which poses a serious safety risk to offshore operators. Contents of the invention [0004] The object of the present invention is to propose a method for running an oil pipe that can make the performance of the oil pipe run into the well more reliable. [0005] For reaching this purpose, the present invention adopts following technical scheme: ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B19/00E21B19/14E21B19/16B08B9/02
CPCB08B9/021E21B19/00E21B19/14E21B19/161
Inventor 李舜水吴健葛俊瑞蔡斌
Owner CHINA NAT OFFSHORE OIL CORP
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