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Impact type consolidated material strength determination instrument and method

A strength measurement and impact technology, applied in the direction of strength characteristics, instruments, measuring devices, etc., can solve the problems that it is difficult to develop forming experiment methods and evaluation methods, and does not have the evaluation and measurement functions of asphaltene materials to stabilize the well wall. , to achieve the effect of compact structure, high degree of automation, and easy to use directly

Active Publication Date: 2016-11-23
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Formation instability and wellbore stability are very complicated technical issues. Due to the many influencing factors and the complex restrictive relationship among various factors, it has been difficult to evaluate the wellbore stability materials and related technologies. Develop experimental methods and evaluation methods that are shaped and recognized by the technical community
From the above analysis, it can be seen that the disclosed related patented devices do not have the function of evaluating and measuring the effect of asphaltene materials on well wall stabilization, but must be based on the characteristics of asphaltene materials to develop suitable for plugging cemented well wall stabilization. Special instruments and corresponding experimental methods for the evaluation of the agent effect, laying the experimental foundation for the field operation of wellbore stability and the research of new materials

Method used

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  • Impact type consolidated material strength determination instrument and method
  • Impact type consolidated material strength determination instrument and method
  • Impact type consolidated material strength determination instrument and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0085] Example 1: Experimental evaluation of the single agent consolidation effect of asphalt anti-slump agent

[0086] Basic formula: 35g / l bentonite+3g / l LV-PAC+25g / lSML-4+20g / l SMP-2+20g / lSMC+15g / l SMS-19+10g / lSPNH+10g / lNaOH+50g / l KCl+5g / l XJA-1+ barite (ρ1.75~1.80kg / l). The measured values ​​of the strength of the sand bed consolidation formed after 2 hours at 110°C / 5MPa are shown in Table 1:

[0087]

[0088] Table 1

Embodiment 2

[0089] Example 2: Experimental evaluation of the consolidation effect after asphalt anti-slump agents with different softening points are compounded. The basic formula is the same as in Example 1. The measured values ​​of the strength of the sand bed consolidation formed after 2 hours at 140°C / 5MPa are shown in Table 2:

[0090]

[0091] Table 2

Embodiment 3

[0092] Example 3: Experimental evaluation of the consolidation effect after asphalt anti-slump agents with different softening points are compounded. The basic formula is the same as in Example 1. The measured values ​​of the strength of the sand bed consolidation formed after 2 hours at 125°C / 5MPa are shown in Table 3:

[0093]

[0094]

[0095] table 3

[0096] Take embodiment 3 as an example. In the first set of measurement data, when the addition of SMFF-2 increased from 15g / l to 25g / l, the impact depth decreased from 32mm to 20mm, indicating that the strength of the cemented body increases with the increase of the amount of stabilizer , the calculation results show that the crushing strength of the cemented body rises from 0.028hPa to 0.05hPa. In the third set of measurement data, when the addition of SMFF-2 increased from 15g / l to 25g / l, the impact depth decreased from 35mm to 21mm, and the calculation results showed that the crushing strength of the cemented bod...

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Abstract

The invention provides an impact-type consolidation strength measuring instrument and a method thereof, belonging to the field of testing device and evaluation of the plugging and cementing ability of a well-bore stabilizer on broken strata. The device includes a base and a bracket arranged on the base, a position adjustment device placed on the bracket, an electromagnetic release control device, a displacement sensing and monitoring device, and a data acquisition and processing system; the position adjustment device is arranged on the bracket. On the top, a probe bracket and a detection system are connected to the position adjustment device; the electromagnetic release control device and the displacement sensing and monitoring device are fixed on the probe bracket and the detection system, and the electromagnetic release control device is located in the displacement transmission. above the sensing and monitoring device; the probe holder and the detection system include a rod-type probe; the electromagnetic release control device is used to control the rise and fall of the rod-type probe.

Description

technical field [0001] The invention belongs to the field of testing devices and evaluations of well wall stabilizers for blocking and cementing capabilities of broken formations, and in particular relates to an impact-type consolidation strength tester and a method thereof, which are used for measuring and evaluating asphalt-type well wall stabilizers and The ability of similar materials to coat and cement simulated fractured formations. Background technique [0002] Formation instability is a very common phenomenon in drilling engineering. The experimental results show that after the shale is in contact with water, its water content will increase significantly, the density will decrease, and micro-cracks will first appear on the surface of the shale (along the wellbore) , thus reducing the strength of shale. This indicates that filtrate intrusion into shale and loss of stress balance are the root causes of wellbore instability. Practice has shown that adding materials wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/303
Inventor 蔡利山任立伟陈曾伟董晓强林永学王文立张凤英杨小华柴龙
Owner CHINA PETROLEUM & CHEM CORP
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