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

Preparation method of gas drilling well plugging material

A plugging material and gas drilling technology, applied in the direction of drilling compositions, chemical instruments and methods, etc., to achieve the effect of resource utilization

Inactive Publication Date: 2019-09-27
CHINA NAT PETROLEUM CORP CHUANQING DRILLING ENG CO LTD +1
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no relevant research and specific application of the above problems in China

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
  • Preparation method of gas drilling well plugging material
  • Preparation method of gas drilling well plugging material
  • Preparation method of gas drilling well plugging material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] As a preferred embodiment of the present invention, it discloses a method for preparing a plugging material for gas drilling, the steps of which are as follows:

[0038] a. Collection and crushing: collect the waste packaging bags and barrels of drilling fluid materials at each drilling site, and carry out centralized crushing treatment: crush the waste packing bags and barrels into particle sizes of 0.5mm, 1.0mm, 2.0mm, and 4.0mm respectively Granules of four sizes in mm are available for use;

[0039] b. Preparation: Using the characteristics of the strength of the granules in the packaging barrel and the toughness of the granules in the packaging bag, first mix the granules of the packaging bag and the packaging barrel with the same particle size at a ratio of 1:1, and then mix the granules of 0.5mm and 1.0mm according to the ratio of 1:1. 1 Mix and name it DLJ-1, mix 1.0mm and 2.0mm particles according to 1:1 and name it DLJ-2, and 4.0mm particle name it DLJ-3;

[...

Embodiment 2

[0042] As one of the best implementations of the present invention, the specific method for making the broken waste packaging particle product DLJ-1 into a plugging slurry is: the leakage speed is 3m 3 Below: 6% pre-hydrated bentonite slurry + 0.5% polymer fluid loss reducer + 3% sulfonated lignite + 3% sulfonated phenolic resin + 0.5% caustic soda + barite + 5% plugging agent + 3% Packing particles DLJ-1, barite density is 1.10g / cm 3 ~1.69g / cm 3 .

[0043] The pre-hydrated bentonite slurry is a professional term in this industry. Such as the application number is the prehydration bentonite slurry disclosed in the 200710118082.X patent literature.

[0044] The polymer fluid loss control agent specifically adopts AM-APEG-AA-SSS polymer fluid loss control agent. AM-APEG-AA-SSS polymer fluid loss reducer is a professional term in this industry. For example, the publication title is "Petrochemical Industry", and the publication date is the title of "AM-APEG-AA -SSS Polymer Fl...

Embodiment 3

[0049] As one of the best implementations of the present invention, the specific method for making the broken waste packaging particle product DLJ-2 into a plugging slurry is: the leakage speed is 3-5m 3 : 5% pre-hydrated bentonite slurry + 0.5% polymer fluid loss additive + 3% sulfonated lignite + 3% sulfonated phenolic resin + 0.5% caustic soda + barite + 5% plugging agent + 3% packaging Material granule DLJ-1+2% packaging material granule DLJ-2, barite density is 1.70g / cm 3 ~2.20g / cm 3 .

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
particle diameteraaaaaaaaaa
densityaaaaaaaaaa
densityaaaaaaaaaa
Login to View More

Abstract

The invention discloses a preparation method of a gas drilling well plugging material. The preparation method comprises following steps: a, collecting and crushing, wherein waste packaging bags and packaging barrels are crushed into particles of four particle sizes including 0.5mm, 1.0mm, 2.0mm, and 4.0mm; b, preparing, wherein, the packaging bag particles and the packaging barrel particles of the same particle size are mixed at a ratio of 1:1, the particles with particle sizes of 0.5mm and 1.0mm are mixed at a ratio of 1:1 so as to obtain mixture DLJ-1, particles with particle sizes of 1.0mm and 2.0mm are mixed at a ratio of 1:1 so as to obtain mixture DLJ-2, and the particles with the particle size of 4.0mm is named as DLJ-3; and c, blending, wherein according to a conventional plugging material using formula, the crushed waste packaging material particle products DLJ-1, DLJ-2, and DLJ-3 are prepared into a plugging slurry used for well drilling leakage of different leakage rates in well drilling plugging. The preparation method is capable of solving the environment problems caused by processing of waste packaging bags and packaging barrels, and realizing waste resource utilization.

Description

technical field [0001] The invention relates to the technical field of preparation and application of leakage plugging materials in oil and gas drilling. Background technique [0002] The publication number is 104531097A, and the Chinese patent literature published on April 22, 2015 discloses a plugging agent for drilling fluid and its preparation method. The components of the treatment agent include: acrylamide 20-25, 2 -Acrylamide-2-methylpropanesulfonic acid 0.4~0.5, acryloyloxyethyltrimethylammonium chloride 2.0~2.5, soda ash 0.8~1.0, high viscoelastic modifier 6.3~7.5 and crosslinking agent 0.001- 0.003, the remainder is deionized water. Acrylamide, soda ash and water are polymerized-hydrolyzed into polyacrylamide in a polymerization tank, and then polyacrylamide and other additives are placed in a kneader for modification. The preparation of the plugging agent includes batching, polymerization-hydrolysis reaction, kneading modification, drying, granulation, milling, ...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/467C09K8/48C09K8/24C09K8/035
CPCC09K8/035C09K8/24C09K8/426C09K8/467C09K8/48
Inventor 陈海涛马光长肖沣峰李晓阳谢显涛何劲何涛王敏
Owner CHINA NAT PETROLEUM CORP CHUANQING DRILLING ENG CO LTD