The invention provides a high hypersalinity-resistant profile control agent for a deep part of an oil reservoir and a preparation method thereof. The profile control agent comprises a front section plug I, a displacement section plug II and a reinforcement section plug III having a volume ratio of (4-5):(0.8-1):(4-5). The invention also provides a preparation method of the above profile control agent. The profile control agent can be used for deep profile control and water plugging of the high-salinity oil reservoir, the profile control agent has good stability, and the plugging performance can be controlled.

High hypersalinity-resistant profile control agent for deep part of oil reservoir and preparation method thereof

The invention provides a full liquid phase airflow diversion agent for a deep oil reservoir and a preparation method of the full liquid phase airflow diversion agent The diversion agent is prepared from a slug I, insulating liquid and a slug II, wherein the volume ratio of the slug I to the insulating liquid to the slug II is (15 to 30) to (45 to 73) to (12 to 25); the slug I is prepared from thefollowing raw materials: a water glass solution, ammonium oxalate, glycerol polyoxyethylene ether, methoxy polyethylene glycol, ammonium chloride and the balance of water; the insulating liquid is prepared from the following raw materials: alpha-sodium olefinsulfonate, iso-tridecanol polyoxyethylene ether and the balance of water; the slug II is prepared from the following raw materials: ammoniumcarbonate, lauryl alcohol polyoxyethylene, polyanionic cellulose, castor oil polyoxyethylene ether, polyethylene glycol and the balance of brine The invention also provides the preparation method ofthe diversion agent The diversion agent disclosed by the invention has good temperature resistance; in addition, the plugging strength can be controlled, the construction is safe and convenient, andblockage of a tubular column is avoided

Full liquid phase airflow diversion agent for deep oil reservoir and preparation method of full liquid phase airflow diversion agent

The invention provides polystyrene butene diacid dibutyl ester, and a preparation method and application thereof. The preparation method comprises the step of carrying out polymerization reaction with styrene and butene diacid dibutyl ester as reaction monomers and water as a dispersion medium in the presences of polyving akohol and azodiisobutyronitrile so as to obtain the polystyrene butene diacid dibutyl ester. The invention also provides the polystyrene butenediacid dibutyl ester prepared by using the above-mentioned preparation method, application of the polystyrene butene diacid dibutyl ester in preparation of a tracer used for monitoring an oil-production profile of a horizontal well, and the tracer containing the polystyrene butene diacid dibutyl ester and used for monitoring the oil-production profile of the horizontal well. The polystyrene butene diacid dibutyl ester provided by the invention can be completely dissolved in crude oil, is used for monitoring oil-production situations in each section after multistage fracturing of the horizontal well, and can achieve purposes of analyzing the oil-production situations in each section and drawing oil-production profile in each section.

Polystyrene butene diacid dibutyl ester, and preparation method and application thereof

The invention provides a water shutoff agent as well as a preparing method and an application thereof The water shutoff agent provided by the invention comprises the following components in a ratio by mass: 1-2 of fatty acid, 005-01 of ethyl acetate, 02-03 of ammonium oxalate, 01-02 of sulfamic acid, 015-025 of aluminum trichloride, 005-01 of nonylphenyl polyoxyethylene ether and 005-01 of nonylphenyl sodium sulfonate The invention further provides a preparing method of the water shutoff agent and an application of the water shutoff agent in water shutoff construction The water shutoff agent provided by the invention has great thermal resistance and strong selectivity, can enter the deep part of the stratum, can solve the problem that the futile cycle of water injected into a high-temperature oil deposit is severe, and can improve the exploitation effect of an oil field

Water shutoff agent as well as preparing method and application thereof

The invention provides polystyrene butenedioic acid dibromopropyl ester and a preparation method therefore and application thereof. The preparation method comprises: by taking styrene and butenedioic acid dibromopropyl ester as reaction monomers, carrying out polymerization reaction by taking water as a dispersing medium in the presence of polyvinyl alcohol and benzoyl peroxide to obtain the polystyrene butenedioic acid dibromopropyl ester. The invention further provides polystyrene butenedioic acid dibromopropyl ester prepared by virtue of the preparation method, application of the polystyrene butenedioic acid dibromopropyl ester in preparing a tracer agent for monitoring an oil producing profile of a horizontal well and a tracer agent comprising the polystyrene butenedioic acid dibromopropyl ester for monitoring the oil producing profile of the horizontal well. The polystyrene butenedioic acid dibromopropyl ester provided by the invention can be fully dissolved in crude oil, and when the polystyrene butenedioic acid dibromopropyl ester is used for monitoring oil producing conditions of sections of the horizontal well after multistage fracturing, the purpose of analyzing the oil producing conditions of the sections and drawing the oil producing liquid profiles of the sections can be achieved.

Polystyrene butenedioic acid dibromopropyl ester and preparation method therefor and application thereof

The invention provides polystyrene butene diacid diethyl hexyl ester, and a preparation method and application thereof. The preparation method comprises the step of carrying out polymerization reaction with styrene and butene diacid diethyl hexyl ester as reaction monomers and water as a dispersion medium in the presences of zinc stearate and cyclohexanone peroxide so as to obtain the polystyrene butene diacid diethyl hexyl ester. The invention also provides the polystyrene butene diacid diethyl hexyl ester prepared by using the above-mentioned preparation method, application of the polystyrene butene diacid diethyl hexyl ester in preparation of a tracer used for monitoring an oil-production profile of a horizontal well, and the tracer containing the polystyrene butene diacid diethyl hexyl ester and used for monitoring the oil-production profile of the horizontal well. The polystyrene butene diacid diethyl hexyl ester provided by the invention can be completely dissolved in crude oil, is used for monitoring oil-production situations in each section after multistage fracturing of the horizontal well, and can achieve purposes of analyzing the oil-production situations in each section and drawing oil-production profile in each section.

Polystyrene butene diacid diethyl hexyl ester, and preparation method and application thereof

Popular Tasks used by Researchers

How can I help with your research?

Get more enhanced response by uploading the PDFs you want me to reference.

No relevant PDFs in your library

SciSpace is the AI research assistant for academics. Run systematic literature reviews on 280M+ papers, and write papers with cited sources. Trusted by 1M+ students, PhDs & researchers.

SciSpace | AI for Research

We encountered an error while loading the panel. Please try refreshing the page.

Something went wrong

Analyze PDFs

Code & Manuscripts

Funding & Grants

Literature & Patents

Medical & Clinical Data

Systematic Review

Visualize & Present

Web & Data

Build a Google Scholar-like website for your research.

Build a website

Create charts and images for your research

Create a Chart

Write a paper for submission to a journal

Draft a manuscript

Patent Search

Design eye-catching scientific posters in minutes.

Scientific Poster Generation

Systematic Literature Review

Anyone with the link can view this chat. You can switch it back to private anytime.

One task is running at the moment. Your messages will be shown right after.

Drag and drop or click here to browse

Loved by <highlight>1 million+</highlight> researchers

Extract a list of specific topics and their sources from unstructured text

Topics

Compare and analyze relevant papers that matches with your search

Papers

Get insights from PDFs and bookmarked papers from your library

My library

Recent searches

Try searching for:

Catch AI-generated content in scholarly and non-scholarly content

{ai} Detector

Ai Writer

Get PDF Summaries, highlighted text explanations 

Chat with PDF

Effortlessly create in-text citations and bibliographies in APA and 2,500 other formats

Citation generator

Get explanations, summaries, and answers on academic papers

Ease up your research workflow with {scispace}'s cohort of exciting AI tools

Elevate your academic writing skills and convey your ideas the way you want

Paraphraser

Explore our range of reading and writing tools

Your file is being prepared and should be ready in a few minutes. If it's a large file, it might take a bit longer. You can close this window, and we'll email you the file when it's done.

You have reached a maximum limit of <strong>{limit}</strong> columns in the table. Remove at least <strong>1</strong> column to add or create another one.

Liu Enhong

Author Tools

Chat about Author