JPH04309688A - Fire fighting method for oil field fire and gas field fire - Google Patents

Abstract

PURPOSE:To provide a very economical fire fighting method for oil and gas fields which can extinguish fire safely and quickly and which allows the reclamation of the field after the fire is extinguished at a low construction cost. CONSTITUTION:A guide place 2 is set at a place remote from the point 1 where fire is taken place, and a guide tunnel 4 is made from this guide place 2 to the oil or gas extraction pipe 3 provided in the underground under the point 1. A space 5 for work is provided at a specified place of this extraction pipe 3, and a guide pipe 6 is connected to the extraction pipe 3 utilizing this space 5, and the extraction pipe 3 which is directed to the fire occurrence point 2 on the earth is cut off to extinguish the fire of the point 1. This guide pipe 6 is arranged to the guide place 2 through the guide tunnel 4 to extract oil or gas at the guide place 2.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oil field fire and gas field fire extinguishing method for safely and quickly extinguishing oil fields and gas fields that have gone up in flames due to accidents or wars.

0002

2. Description of the Related Art Conventionally, the following three methods have been used to extinguish oil field fires and gas field fires.

1. Dynamite fire extinguishing method The most commonly used fire extinguishing method, this method involves exploding dynamite at the fire site and using the blast to momentarily blow air out of the flaming oil or gas to extinguish the fire.

However, this method is extremely dangerous, and there is a risk that a large explosion will occur again if there is a fire such as a burnt piece of iron nearby after the explosion has been extinguished.

[0005] For this reason, after extinguishing the fire, it is necessary to submerge the oil or gas outlet into a pond measuring 200 to 300 meters on all sides and approximately 2 meters deep.

[0006] Another problem is that when re-excavating oil and gas fields that have been extinguished, restoration is extremely troublesome.

2. Dedicated well drilling method for fire extinguishing This is a fire extinguishing method that damages part of the oil field or gas field, and it may be very difficult to use it again after the fire has been extinguished.

3. This method uses a cylinder to extinguish a fire, but it can only be applied to small-scale fires.

[0009]

[Problems to be Solved by the Invention] The present invention provides an extremely economical method for extinguishing oil field fires and gas field fires that can extinguish fires safely and quickly, is easy to reuse after extinguishing, and does not require construction costs. The technical challenge is to provide such information.

0010

SUMMARY OF THE INVENTION The gist of the present invention will be explained with reference to the accompanying drawings.

[0011] A guide point 2 is set up in a place away from the fire outbreak site 1 where a fire is occurring, and a guide tunnel is run from this guide point 2 to an oil or gas collection pipe 3 installed underground of the fire outbreak site 1. 4 is dug, a working space 5 is provided at a predetermined location of this sampling pipe 3, and using this working space 5, a guide pipe 6 is connected to the sampling pipe 3, and at the same time, the sampling pipe 3 heading toward the fire outbreak site 1 on the ground is blocked. Oil field fires and gas are characterized by extinguishing the fire at the fire site 1, installing the guide pipe 6 through the guide tunnel 4 to the guiding site 2, and extracting oil or gas from the guiding site 2. This relates to methods for extinguishing field fires.

0012

[Operation] Since the sampling pipe 3 heading toward the fire site 1 on the ground is shut off, the supply of oil and gas, which are the combustion sources, to the fire site 1 is stopped, and the flame naturally subsides and is extinguished.

During that time, oil and gas are guided to the guide area 2 through the guide pipe 6 arranged in the guide tunnel 4,
It can be collected at

After the fire has been extinguished, by restoring the fire site 1, it becomes possible to install it alongside the guidance site 2 or to use it again in place of the guidance site 2.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a schematic diagram of this embodiment in a completed state.

In this embodiment, the oil field is an oil field in which two sampling pipes 3 are suspended from an oil spouting well 7 on the ground to two oil layers 8 directly below, respectively, and if the oil spouting well 7 catches fire for some reason. The present invention is applied to an oil field that has been damaged.

The guide area 2 is set at a position far enough from the fire site 1 to allow the excavation work of the guide tunnel 4 and the oil extraction work to be carried out safely.

A guide tunnel 4 is constructed by digging horizontally from the guide area 2 toward the underground of the fire site 1, so that the heat of the fire site 1 is not transmitted and workers can safely connect the guide pipe 6. This guiding tunnel 4 extends to the depth of the sampling tube 3 and provides a working space 5 around the sampling tube 3.
Due to the current development of tunnel construction methods in Japan, this can be carried out extremely safely, quickly, and at low cost.

Next, the method of connecting the guide pipe 6 and cutting off the oil supply to the fire site 1 of the sampling pipe 3 according to this embodiment will be described in detail with reference to FIGS. 2 to 4.

In order to protect the sampling tube 3, an oil guiding device 10 is fitted onto the outside of the casing pipe 9 in which the sampling tube 3 is placed inside.

At this time, the sampling pipe 3 inside the casing pipe 9
The collection tube 3 is fixed at the center position with the centering fitting 18 as shown in FIG.
Cement 11 may be injected and fixed.

Next, the spindle 13 is inserted through the high-pressure gate valve 12 provided in the oil induction device 10 to perforate the casing pipe 9, and further the sampling pipe 3 inside thereof is perforated.

After drilling, the spindle 13 is removed and the guide tube 6 is connected to the high pressure gate valve 12 instead, and the collection tube 3 is connected to the high pressure gate valve 12.
and the guide tube 6 are branched and connected.

In this embodiment, two guide tubes 6 are connected to each collection tube 3.

[0025] After the connection, the sampling pipe 3 heading upward to the fire outbreak site 1 is crushed by the pre-bender 14 on the upper part of the oil induction device 10 and shut off.

The pre-bender 14 at the lower part of the oil guiding device 10 crushes and seals the casing pipe 9 up to the sampling pipe 3 to prevent oil from spouting out from the hole formed in the sampling pipe 3.

In the figure, reference numeral 15 is a protective casing for the oil induction device 10, 16 is a spindle sealing device, and 17 is a spindle driving device.

In addition, the collection tube 3 is shut off by not using the pre-bender 14 as described above, but by inserting the spindle 13 into the collection tube 3, drilling it, and fixing it in this inserted state. You may do so.

[0029]

[Effects of the Invention] The present invention utilizes the tunnel construction method, which has been extremely developed in recent years, to cut off the sampling pipe and extinguish the fire naturally, making it extremely safe and quick to extinguish the fire, and at an extremely low construction cost. This is a method to extinguish oil field fires and gas field fires.

Furthermore, the present invention makes it possible to immediately resume the collection work and continue collecting at a safe guidance area using the guidance tunnel.

Furthermore, the present invention allows for easy recovery work after extinguishing a fire, and it is very easy to use the induction area and the extinguishing recovery area at the same time, or to perform collection work again at the extinguishing recovery area. It is an excellent method for extinguishing oil field fires and gas field fires.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram of a work completed state in this embodiment.

FIG. 2 is an explanatory diagram of main parts showing connection and disconnection work to a collection tube in this embodiment.

FIG. 3 is an explanatory diagram of main parts showing the drilling operation for the collection tube in this embodiment.

FIG. 4 is a cross-sectional view of the main parts of the collection tube of this embodiment.

[Explanation of symbols]

1. Location of fire 2 Induction area 3 Collection tube 4 Guidance tunnel 5 Work space 6 Guide tube

Claims (1)

[Claims] [Claim 1] A guiding area is set up in a place far away from the area where the fire is occurring, and a guiding tunnel is dug from this guiding area to an oil or gas collection pipe installed underground in the area where the fire occurs, A work space is provided at a predetermined location of this collection pipe, and this work space is used to connect a guide pipe to the collection pipe, and also to cut off the collection pipe heading toward the fire location on the ground to extinguish the fire location. A method for extinguishing oil field fires and gas field fires, which is characterized by installing a pipe through a guidance tunnel to a guidance site and newly extracting oil or gas at the guidance site.