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One-stop flushing and pressure testing method of hydraulic system of self-elevating drilling platform

A hydraulic system and drilling platform technology, which is applied in the field of one-stop flushing and pressure testing of the jack-up drilling platform hydraulic system, can solve problems such as undiscovered, and achieve the effects of improving cleanliness, shortening the working cycle, and reducing labor costs

Active Publication Date: 2015-04-22
NANTONG ZHENHUA HEAVY EQUIP MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

After examining the relevant documents, no technical solutions identical or similar to the present invention have been found

Method used

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  • One-stop flushing and pressure testing method of hydraulic system of self-elevating drilling platform
  • One-stop flushing and pressure testing method of hydraulic system of self-elevating drilling platform
  • One-stop flushing and pressure testing method of hydraulic system of self-elevating drilling platform

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as figure 1 As shown, the present invention discloses a one-stop flushing and pressure testing method for the hydraulic system of a self-elevating drilling platform. The method is to use a dual-purpose oil stringing device to flush the hydraulic system with oil, and after flushing, start the pressure test pump to complete the hydraulic system. The pressure test work, in which the dual-purpose oil stringing equipment is Algate FTE-800 equipment for flushing and dual-purpose;

[0035] The specific steps of flushing pressure test method are as follows:

[0036] (1) Subcontracting for string washing and pressure testing: Firstly, the string washing and pressure testing packages are divided, and the subcontracting meets the conditions for simultaneous string washing and pressure testing.

[0037] (2) Calculate the pressure test pressure of series washing: after the subcontracting is completed, calculate the flow rate, viscosity, working pressure and temperature of the ...

Embodiment 2

[0064] In this example, on the basis of Example 1, in order to improve the flushing efficiency of the series oil pressure test bag A and the oil series pressure test bag B, the filtration precision of the special fine oil filter trolley for the pressure test in step (4) is 10 μm, Step (8) The temperature of the string oil is kept at 60°C-65°C.

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Abstract

The invention relates to a one-stop flushing and pressure testing method of a hydraulic system of a self-elevating drilling platform. The method is to use dual-purpose oil intermingle equipment for performing the oil intermingle flushing for the hydraulic system; after the flushing, a pressure testing pump is started to finish the pressure testing operation of the hydraulic system; and the dual-purpose oil intermingle equipment is flushing dual-purpose Aldgate FTE-800 equipment. The flushing and pressure testing method comprises the specific steps of subpackaging flushing and pressure testing; calculating flushing and pressure testing pressure; connecting pipelines between the oil intermingle equipment and the flushing and pressure testing package; filling oil; intermingling oil, wherein in the oil intermingle process, a pipeline is required to be shaken, a filter element is required to be replaced, and the oil intermingle temperature is kept lower than 65 DEG C; performing oil intermingle sampling detection; submitting an examining report after the detection is qualified; recovering oil; performing pressure testing; and recovering the pipeline after the pressure testing is finished. The flushing and pressure testing method has the following advantages: the flushing and pressure testing method adopts the dual-purpose oil intermingle equipment, so that the flushing and pressure testing method is simpler and safer, reduces the repeated disassembly operation of the pipeline of the hydraulic system, and shortens the working period.

Description

technical field [0001] The invention relates to oil and gas exploration equipment, in particular to a one-stop flushing and pressure testing method for the hydraulic system of a self-elevating drilling platform. Background technique [0002] The jack-up drilling platform is composed of a platform, legs and a lifting mechanism. The platform can be raised and lowered along the legs, and generally has no self-propelled capability. When working, the pile legs are lowered and inserted into the seabed, and the platform is lifted to a safe working height away from the sea surface, and the pile legs are preloaded to ensure that the pile legs will not sink when the platform encounters a storm. After the completion of the well, the platform is lowered to the sea surface, the legs are pulled out and all lifted, and the whole platform floats on the sea surface and is towed to a new well location by a tugboat. [0003] In 1953, the first jack-up platform was built in the United States. ...

Claims

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Application Information

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IPC IPC(8): F15B21/04F15B19/00
CPCF15B19/00F15B21/04F15B21/041
Inventor 王明浪
Owner NANTONG ZHENHUA HEAVY EQUIP MFG
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