CN1073469A - A kind of production method of thin film spreading agent - Google Patents

Abstract

Spearhead---the production method of using before the gas injection of a kind of oil field oil pumping thermal recovery well of thin film spreading agent is made up of prescription and production method two portions.The thin film spreading agent that uses the present invention to produce has high temperature resistant---and under 280 ℃ condition, effective constituent accounted for 52% of the original, characteristics such as easy construction in 15 days.

Description

A kind of production method of thin film spreading agent

The production method of the spearhead-thin film spreading agent that uses before the gas injection of a kind of oil field oil pumping thermal recovery well.

In the viscous oil recovery process, the exploitation of viscous crude needs to inject high-temperature vapour before the exploitation for convenience, to reach the heating stratum, makes viscous crude at high temperature reduce viscosity, is easy to flow, make things convenient for the purpose of exploiting.In the viscous oil recovery process in the past, after often existence is only injected high-temperature vapour, the low and low problem of displacement efficiency of steam sweep efficiency.Calculate by the formula of recovery ratio=sweep efficiency * washing oil coefficient, because of sweep efficiency and displacement efficiency are low, so tar productivity is also low.

The objective of the invention is to design a kind of specific production method.Use this method can produce the spearhead-thin film spreading agent that uses before the gas injection of a kind of oil thermal recovery well.In the viscous oil recovery process, before the gas injection of oil pumping thermal recovery well, injection can reduce liquid-solid interfacial tension after using the thin film spreading agent of the present invention's production, oil is peeled away from rock core, thereby reached the purpose that improves steam sweep efficiency, displacement efficiency, satisfies the raising recovery ratio.

The present invention is made up of prescription and production method two portions.

It is as follows to fill a prescription:

Perhaps, change charging capacity in the material ratio according to the requirement and the appointed condition of product volume.

Production method is as follows:

1. use vacuum inhalation dekalin 120-170kg, and starting is stirred;

2. be warmed up to 40-50 ℃ and add contraposition tert.-butyl phenol 120-130kg and trioxymethylene 15-17kg;

3. add 20% sodium hydroxide solution 5.8-6.5kg after being warmed up to 55 ± 3 ℃;

4. in 5 hours, material is warmed up to 168 ± 3 ℃ by 55 ℃.Per hour heat up 22 ℃, control vacuum tightness-0.005MPa ';

5. be incubated 168 ± 3 ℃ after 1.5 hours, measure the water yield;

6. material is cooled to 50-60 ℃;

7. add 20% sodium hydroxid aqueous solution 10-11.5kg, control vacuum tightness-0.005MPa '

8. in 3 hours, material is warmed up to 168 ± 3 ℃ of insulations 5 hours by 50-60 ℃, measures the water yield.When aquifer yield is 25-27kg, material is cooled to 128 ± 3 ℃, vacuum tightness is-0.006MPa ';

9. add oxyethane from the still lower curtate.When adding oxyethane, by controlling the add-on that reaction pressure 0.05-0.1MPa ' comes the regulating ring oxidative ethane.Temperature regulation is at 128 ± 3 ℃, and adding 280-320kg oxyethane needs 5 hours approximately, and per minute adds 1kg approximately;

10. be incubated 128 ± 3 ℃ of stirrings 2 hours after adding oxyethane, be warmed up to 150 ± 5 ℃ and fractionate out perhydronaphthalene, need 7-8 hour approximately;

11. being cooled to 50-60 ℃, still can emit finished product.

That the thin film spreading agent that uses the present invention to produce has is high temperature resistant-under 280 ℃ condition, 15 days effective constituent account for the original 52%, characteristics such as easy construction.

Embodiment:

1. add perhydronaphthalene 150kg and starting stirring with the vacuum inhalation;

2. be warmed up to 40-45 ℃ and add contraposition tert.-butyl phenol 120kg and trioxymethylene 16.8kg

3. add 20% sodium hydroxide solution 6.25kg after being warmed up to 55 ± 3 ℃;

4. in 5 hours, material is warmed up to 168 ± 3 ℃ by 55 ℃, per hour heats up 22 ℃, control vacuum tightness-0.005MPa ';

5. be incubated 168 ± 3 ℃ after 1.5 hours, measure the water yield;

6. material is cooled to 50-60 ℃;

7. add aqueous solution 10.75kg in 20% hydroxide, control vacuum tightness-0.005MPa ';

8. in 3 hours material is warmed up to 168 ± 3 ℃ by 50-60 ℃, is incubated 5 hours, measure the water yield, when aquifer yield is 25-27kg, material is cooled to 128 ± 3 ℃, vacuum tightness is-0.006MPa ';

9. at the bottom of still, add oxyethane.When adding oxyethane, by controlling the add-on that reaction pressure 0.05-0.1MPa ' comes the regulating ring oxidative ethane.Temperature regulation is at 128 ± 3 ℃, and adding 300kg oxyethane needs 5 hours approximately, and per minute adds 1kg approximately;

10. after adding oxyethane, be incubated 128 ± 3 ℃ and stirred 2 hours, be warmed up to 150 ± 5 ℃ and fractionate out perhydronaphthalene, need 7-8 hour approximately;

11. being cooled to 50-60 ℃, still can emit finished product.

Claims (11)

1. Spearhead--the production method of using before the gas injection of a kind of oil field oil pumping thermal recovery well of thin film spreading agent is made up of prescription and production method two portions, it is characterized in that:

   It is as follows to fill a prescription:

   The material name molecular formula scope that feeds intake

   The contraposition tert.-butyl phenol

   

   120-130kg

   Trioxymethylene

   

   15-17kg

   Sodium hydroxide NaOH

   A 5.8-6.5kg

   Secondary 10-11.5kg

   Perhydronaphthalene

   

   120-170kg

   Oxyethane

   

   280-320kg

   Perhaps, press ingredient proportion and change charging capacity according to the requirement and the appointed condition of product volume.

   Production method is as follows:

   1, with vacuum inhalation dekalin 120-170kg, and starting is stirred;
2. 2, be warmed up to 40-50 ℃ and add contraposition tert.-butyl phenol 120-130kg and trioxymethylene 15-17kg;
3. 3, add 20% sodium hydroxide solution 5.8-6.5kg after being warmed up to 55 ± 3 ℃
4. 4, in 5 hours, material is warmed up to 168 ± 3 ℃ by 55 ℃.Per hour heat up 22 ℃, control vacuum tightness-0.005MPa;
5. 5,168 ± 3 ℃ of insulations measured the water yield after 1.5 hours.;
6. 6, material is cooled to 50-60 ℃
7. 7, add 20% sodium hydroxid aqueous solution 10-11.5kg, control vacuum tightness-0.005MPa
8. 8, in 3 hours, material is warmed up to 168 ± 3 ℃ of insulations 5 hours by 50-60 ℃, measures the water yield.When output is 25-27kg, material is cooled to 128 ± 3 ℃, vacuum tightness is-0.006MPa;
9. 9, adding epoxy second from the still lower curtate washes.When adding oxyethane, by controlling the add-on that reaction pressure 0.05-0.1MPa comes the regulating ring oxidative ethane.Temperature regulation is at 128 ± 3 ℃, and adding 280-320kg oxyethane needs 5 hours approximately, and per minute adds 1kg approximately;
10. 10, add and be incubated 128 ± 3 ℃ behind the oxyethane and stirred 2 hours, be warmed up to 150 ± 5 ℃ and fractionate out perhydronaphthalene, need 7-8 hour approximately;
11. 11, still is cooled to 50-60 ℃ and can emits finished product.