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Rock salt deposit horizontal chamber type oil-gas depot and its building method

A construction method and chamber technology, applied to mining equipment, mining equipment, earthwork drilling and mining, etc., can solve problems such as brine pollution, groundwater and environmental pollution, waste of crude oil, etc., and achieve less pollution, small vertical span, and avoid waste Effect

Inactive Publication Date: 2005-10-05
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the use of oil pads to control the construction of oil and gas storage depots not only wastes a lot of crude oil, but also causes certain pollution to brine. The polluted brine is discharged in the wild, which will cause surface, groundwater and environmental pollution.

Method used

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  • Rock salt deposit horizontal chamber type oil-gas depot and its building method
  • Rock salt deposit horizontal chamber type oil-gas depot and its building method

Examples

Experimental program
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Effect test

Embodiment 1

[0028] Such as figure 1 , 2 As shown, a horizontal chamber type oil and gas storage reservoir 3 of a salt rock deposit is chamber-shaped, and the chambers are distributed horizontally along the direction of the ore seam. 2 to 2 / 3, the chamber length is more than 10 times the diameter.

[0029] The single layer thickness of the salt rock mine in this embodiment is 80m, the designed chamber diameter is 50m, and the length in the horizontal direction is 500m.

[0030] The capacity of a single level chamber is limited, to meet the requirements of a certain capacity, it is necessary to build chamber storage groups (see figure 2 ). The single-chamber reservoirs are arranged in the rock formation at a certain interval to form a group of oil and gas reservoirs. At least two horizontal chambers are arranged in the same rock formation to form a single-layer reservoir group.

[0031] According to the calculation of mechanical stability, for a single chamber with a diameter of D, th...

Embodiment 2

[0041] Such as figure 1 , 2 As shown, a horizontal chamber type oil and gas storage reservoir 3 of a salt rock deposit is chamber-shaped, and the shape of the cross-section of the chamber is approximately circular. The radius of the cavity depends on the occurrence characteristics and thickness of the salt rock deposit.

[0042] The single layer thickness of the salt rock mine in this embodiment is 60m, the designed chamber diameter is 30m, and the length in the horizontal direction is 300m.

[0043] The capacity of a single level chamber is limited, to meet the requirements of a certain capacity, it is necessary to build chamber storage groups (see figure 2 ). The single-chamber reservoirs are arranged in the rock formation at a certain interval to form a group of oil and gas reservoirs. At least two horizontal chambers are arranged in the same rock formation to form a single-layer reservoir group.

[0044] According to the calculation of mechanical stability, for a sin...

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Abstract

The invention discloses a bronze-type horizontal salt rock oil gas reservoir and its building method. This invention get rid of the present problem of bronze-type vertical reservoir and provides a kind of product method that can build a bronze-type horizontal salt rock oil gas reservoir in a salt-rock samdwich and salt-hill-type mine bed. The oil gas reservoir presents bronze-type room, the section of which is almost round and which spreads along the layers. The spreading direction, the length and the radius of the horizontal bronze room are decided by the characteristics and the thickness. The invention takes the advantage of the technology of directional drilling and connecting well and the technology of controlling solution. No only the building speed is fast, but also the invention avoids the waste and pollution to raw oil by the oil cushion. It is building method which has a great capability, runs stably and safety, and is economy.

Description

Technical field: [0001] The invention belongs to the industrial category of oil and gas storage, and relates to a construction method of oil and gas storage and a horizontal oil and gas storage using directional drilling and controlled dissolution technology in salt rock deposits. technical background: [0002] Salt rock deposits are deposited from water-soluble salt substances. Due to the physical and mechanical characteristics of salt rock with compact structure, rheology and strong damage self-healing, salt rock deposits are regarded as the construction of oil and gas reservoirs. ideal place. In foreign countries, post-harvest salt rock caverns have been used to store oil and natural gas for decades; in order to speed up my country's underground strategic oil reserves and cooperate with the construction of downstream gas storages for the West-to-East Gas Transmission Project, China has also started to use them in recent years. Research on the construction method of oil an...

Claims

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Application Information

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IPC IPC(8): E21B7/04E21B21/14E21F17/16
Inventor 梁卫国赵阳升徐素国杨栋常宗旭冯增朝
Owner TAIYUAN UNIV OF TECH
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