Unlock instant, AI-driven research and patent intelligence for your innovation.

Biomass fermentation broth lubricant for drilling fluid, and preparation method thereof

A technology for biomass fermentation and drilling fluid, which can be used in drilling compositions, chemical instruments and methods, etc., and can solve the problems of environmental pollution and high cost.

Active Publication Date: 2020-10-27
中石化石油工程技术服务有限公司 +2
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Currently widely used lubricants for drilling fluids are either expensive, pollute the environment, or have fluorescence that affects geological logging, and cannot well meet the needs of large-scale water wells. Cost and Performance Requirements for Drilling Fluid Lubricants in Flat Well Exploration and Development

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Biomass fermentation broth lubricant for drilling fluid, and preparation method thereof
  • Biomass fermentation broth lubricant for drilling fluid, and preparation method thereof
  • Biomass fermentation broth lubricant for drilling fluid, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Take the microbial fermentation liquid and remove impurities through 3000r / min high-speed centrifugation for 15min, and take the centrifuged upper layer homogeneous liquid for subsequent use; in parts by weight, get 8 parts of the prepared upper layer homogeneous liquid and place them in a reaction vessel, and then pour them into the reaction vessel Add 3 parts of methanol and 2 parts of p-toluenesulfonic acid in sequence, and carry out esterification reaction for 5 hours under the conditions of 70°C and 400r / min to obtain a crude biomass fermentation solution; the crude biomass fermentation solution is subjected to natural sedimentation , divided into two layers, the lower layer is the water phase, and the upper oil phase is the biomass fermentation broth.

[0036] Add 75 parts by weight of biomass fermentation liquid; 8 parts by weight of potassium oleate; 3 parts by weight of alkylphenol polyoxyethylene ether into the reactor, and react for 4 hours at 70°C and 500r / mi...

Embodiment 2

[0038] 80 parts by weight of the biomass fermentation broth prepared in Example 1; 9 parts by weight of potassium oleate; 4 parts by weight of alkylphenol polyoxyethylene ether were added to the reactor, at 70 ° C, 450r / min conditions After reacting for 3 hours, a biomass fermentation fluid lubricant for drilling fluid was prepared.

Embodiment 3

[0040] 85 parts by weight of the biomass fermentation liquid prepared in Example 1; 10 parts by weight of potassium oleate; After reacting for 3 hours, a biomass fermentation fluid lubricant for drilling fluid was prepared.

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
Ec50aaaaaaaaaa
Login to View More

Abstract

The invention provides a biomass fermentation broth lubricant for a drilling fluid, wherein the biomass fermentation broth lubricant is prepared from the following materials in parts by weight: 75-90parts of a biomass fermentation broth, 8-12 parts of a thickening agent, and 3-5 parts of an emulsifier, and the preparation method of the biomass fermentation broth comprises the following steps: carrying out centrifugal separation on a microbial fermentation broth to remove impurities so as to obtain a centrifugally separated upper-layer liquid; under the action of a catalyst, carrying out an esterification reaction on the upper-layer liquid and lower alcohol to obtain a biomass fermentation crude solution; and settling the biomass fermentation crude solution to obtain a water phase and an oil phase, wherein the oil phase is a biomass fermentation broth. According to the invention, the biomass fermentation broth lubricant for the drilling fluid provided by the invention is low in price,easy to biodegrade, green and pollution-free, and is suitable for operations of extended reach wells, inclined wells, horizontal wells and the like.

Description

technical field [0001] The invention relates to the technical field of oil and gas well exploitation, in particular to a biomass fermentation fluid lubricant for drilling fluid and a preparation method thereof. Background technique [0002] In the process of oil and gas drilling, lubricant is a relatively important drilling fluid additive. Its function is to reduce the frictional resistance between the drilling tool and the well wall, the drilling tool and the casing, and reduce the rotational torque of the drill string and the tripping resistance, thereby Reduce downhole sticking accidents and increase drilling speed. [0003] The currently widely used lubricants for drilling fluids either have high cost, or pollute the environment, or have fluorescence that affects geological logging, and none of them can well meet the cost and performance requirements of drilling fluid lubricants for large-scale horizontal well exploration and development. Contents of the invention [...

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
CPCC09K8/035C09K2208/34
Inventor 张晓刚单海霞张弌李彬周亚贤吕跃滨
Owner 中石化石油工程技术服务有限公司