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Method for manufacturing soluble slip and soluble slip manufactured by same

A manufacturing method and technology of slips, which are applied in the field of oil drilling, can solve the problems of large quantity, delayed production of oil and gas wells, and long drilling and removal time, and achieve the effects of high process performance, low cost, and easy oxidation

Active Publication Date: 2018-09-25
BEIJING ZHONGKE JINTENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the long length and large number of fracturing tools left in the well, it takes a long time to drill and remove, which delays the later production of oil and gas wells

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Mix diamond, acrylate adhesive and soluble particles in a weight ratio of 85:10:5, coat the mixture on the surface of the slip body, and cure it at a high temperature of 180 °C to make a soluble card with a high temperature of 120 °C watt.

[0057] Wherein, the soluble particles are particles prepared from the self-dissolving materials in Examples 1-9 in the invention patent application CN201410609926.0.

Embodiment 2

[0059] The diamond, the epoxy resin adhesive and the soluble particles are mixed in a weight ratio of 90:5:5, the mixture is coated on the surface of the slip body, and cured at 80°C to form 80°C-resistant soluble slips.

[0060] Wherein, the soluble particles are particles prepared from the self-dissolving materials in Examples 1-9 in the invention patent application CN201410609926.0.

Embodiment 3

[0062] Soluble slips were prepared in the same manner as in Example 1 or 2, except that grooves were added to the surface of the slip body.

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Abstract

The invention relates to a method for manufacturing a soluble slip and a soluble slip manufactured by the same. The method includes the following steps sequentially: (1) mixing an adhesive with solidparticles; (2) coating a mixture prepared in the step (1) on the surface of a slip body; (3) curing the mixture coated in step (2). The soluble slip manufactured by the method not only has strong anchoring force with the shaft inner wall, but also can adjust the dissolution rate of the slip after completion of fracturing to enable the slip to be degraded within the set time. Further, the soluble slip has good abrasion resistance, is suitable for various temperature conditions, and can still work normally in the environment of concentrated acid or concentrated alkali.

Description

technical field [0001] The invention belongs to the field of oil drilling, and relates to a method for manufacturing soluble slips and the soluble slips manufactured by the method. Background technique [0002] With the development of global oil and gas fields and the continuous depletion of energy, unconventional oil and gas will become an important replacement for oil and natural gas energy in the future. The reserves of unconventional oil such as ultra-heavy crude oil, oil sand oil, tight oil, shale oil, and unconventional natural gas resources such as tight sandstone gas, shale gas, and coalbed methane are higher than those of conventional oil and gas, which have unlimited exploration and development potential. However, due to the large specific gravity, many impurities, high viscosity of unconventional oil reservoirs, and low porosity and ultra-low permeability of unconventional natural gas reservoirs, these oil and gas production costs are relatively high, but with the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B19/10C09D133/04C09D163/00C09D121/00
CPCC09D121/00C09D133/04C09D163/00C09D7/61C09D7/70E21B19/10C08K3/04C08K3/08C08K7/26C08K3/36C08K3/34C09J163/00E21B33/129E21B33/134E21B2200/08C09J5/02C09J121/00C09J133/04C09J2301/20C09J2301/30C09J2301/40
Inventor 席君杰
Owner BEIJING ZHONGKE JINTENG TECH
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