For different purpose and demand, various types of mud systems have been applied for drilling operation in petroleum industry with the main two types of water based and oil based mud. However, these two types of mud have their own defect and limitation. Since most of the formations are hydrophilic or even water sensitive, there will be many problems raised due to water sensitivity by using water base mud, such as mud creation in formation, formation collapse and formation pollution etc. in order to solve these problems, there comes oil based mud, but OBM has its own problems as well, such as high cost, high pollution and safety issue etc. Therefore, a new type of mud system has been under research, and after a long experiment and practice, some mud companies have begun to use a new mud system based on ester derivative substance(C12-18), named as ester based mud. It is synthesized from plant oil, no toxicity and degradable, and can replace the mineral oil contained in OBM.
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METHOD OF ADDITION:
The product can be used to displace the mineral oils like diesel, crude in traditional oil-based mud. The use method and dosage is equivalent to mineral oil in traditional oil based mud.
By using low toxicity oil mud, it can almost eliminate problems existing in water based mud and oil based mud, especially be applicable to wells where oil based mud must be used but subjected to other limitations like environment.
The advantages can be concluded as:
- It has all the features of all oil-based mud, with no pollution and degradable toxicity;
- It avoids using special completion fluid, and ester-based mud has excellent function of oil zone protection;
- it is suitable for near-balance and un-balance drilling;
- It has solved safety issue of oil based mud.
PACKAGING AND STORAGE:
The product shall be packed with clean, seamless and leak-proof galvanized drum or plastic drum of 200 L. They should be stored in cool dry place, and keep away from the fire source, and prevent the sunlight exposure and rain.
Avoid contact with eyes, swallow or skin and clothing, or wash with plenty of water.