Biodiesel drilling fluid lubricant and preparation method thereof

A drilling lubricant and biodiesel technology, applied in chemical instruments and methods, drilling compositions, etc., to achieve great application potential, ensure stability, and good dispersion

Inactive Publication Date: 2012-03-28
山东华阳油业有限公司 +1
View PDF6 Cites 20 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] For this reason, the technical problem to be solved by the present invention is that the lubricant suitable for water-based drilling fluid in the prior art cannot meet the problems of easy degradatio

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0040] Example 1:

[0041] Take 100mL of biodiesel, 10g of emulsifier and 6g of defoamer and add to 120mL of water, stir evenly at high speed, and wait for the components to be fully emulsified to obtain the required biodiesel drilling fluid lubricant.

[0042] According to China National Petroleum Corporation Enterprise Standard Q / CNPC 88-2003 "Technical Requirements for Liquid Lubricants for Drilling Fluids", add 2% (per 100mL of base slurry) to 5% base slurry (dissolve 5g of bentonite per 100mL of water, the same below) Adding 2g of the lubricant, the same below) The biodiesel drilling fluid lubricant prepared above, the measured friction coefficient reduction rate of the drilling fluid is 82.86%, which is much higher than the standard ≥65%.

[0043] It shows that the biodiesel drilling fluid lubricant of the present invention has good lubricating performance.

Example Embodiment

[0044] Example 2

[0045] Take 100mL of biodiesel, 10g of emulsifier and 6g of defoamer and add to 120mL of water, stir evenly at high speed, and wait for the components to be fully emulsified to obtain the required biodiesel drilling fluid lubricant.

[0046] According to the test method described in China National Petroleum Corporation Enterprise Standard Q / CNPC 88-2003 "Technical Requirements for Liquid Lubricants for Drilling Fluids", 0.5% is added to 5% base slurry (5g bentonite dissolved in 100mL of water, the same below) (Add 0.5g of the lubricant per 100mL of base slurry) The biodiesel drilling fluid lubricant prepared above has a measured friction coefficient reduction rate of 72.1%, which is higher than the standard requirement of ≥65%.

[0047] The test data of Example 2 shows that when the biodiesel drilling fluid lubricant of the present invention is used in water-based drilling fluids, only a small amount of addition is required to meet the requirements specified in th...

Example Embodiment

[0048] Example 3:

[0049] Take 100mL of fatty acid methyl ester biodiesel, 6g of emulsifier and 2g of polyol phosphate defoamer and add it to 80mL of water, stir evenly at high speed, and wait for the components to be fully emulsified to obtain the required biodiesel drilling fluid lubricant. The emulsifier is composed of Siban-85 and sodium oleate in a weight ratio of 1:1.

[0050] According to China National Petroleum Corporation Enterprise Standard Q / CNPC 88-2003 "Technical Requirements for Liquid Lubricants for Drilling Fluids", add 1% of the above-prepared biodiesel drilling fluid lubricant to 5% base slurry, and then add 4% NaCl A salt water environment is formed, and the friction coefficient reduction rate of the drilling fluid before and after adding is measured to be 81.32%, which is much higher than the standard requirement of ≥65%.

[0051] It shows that the biodiesel drilling fluid lubricant of the present invention has good lubricating performance in brine drilling fl...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Apparent viscosityaaaaaaaaaa
Plastic viscosityaaaaaaaaaa
Dynamic shear forceaaaaaaaaaa
Login to view more

Abstract

The invention belongs to the field of oilfield chemistry, and in particular relates to a lubricant based on biodiesel and applied to a water-based drilling fluid and a preparation method thereof. The biodiesel drilling fluid lubricant comprises biodiesel; and 80 to 120 milliliters of water, 4 to 10 grams of emulsifier and 2 to 6 grams of defoaming agent are added into every 100 milliliters of biodiesel. The biodiesel is used for substituting white oil and diesel oil and researched into the biodiesel drilling fluid lubricant suitable for the water-based drilling fluid; and the biodiesel drilling fluid lubricant has similar lubricating performance as an oil-based lubricant and can be perfectly dissolved with the water of the drilling fluid, and the whole system has good dispersity.

Description

technical field [0001] The invention belongs to the field of oilfield chemistry, and in particular relates to a biodiesel-based lubricant suitable for water-based drilling fluid and a preparation method thereof. Background technique [0002] Drilling fluid is the circulating medium used in the drilling process. Drilling fluid mainly completes the tasks of suspension, pressure control, formation stability, buoyancy, lubrication and cooling during the drilling process. Drilling fluid has the functions of: cleaning the bottom of the well, carrying cuttings; cooling and lubricating the drill bit and drill string; balancing the lateral pressure of the well wall rock, sealing and stabilizing the well wall; balancing the formation pressure; Cuttings; effectively transmit hydraulic power; bear part of the gravity of the drill pipe and casing; provide a large amount of data on the drilled formation; break rocks through hydraulic and other important functions. [0003] With the rapi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C09K8/035
Inventor 孙明波林殷平商红岩薛真真
Owner 山东华阳油业有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap