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A ground heating device for low-maturity oil shale and its application and evaluation method

A ground heating and heating device technology, which is applied in ground mining, measuring devices, underground mining, etc., to achieve the effect of reducing energy waste, reducing energy waste, and promoting maturity

Active Publication Date: 2021-07-16
SOUTHWEST PETROLEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems existing in the above-mentioned prior art, the present invention provides a ground heating device for low-maturity oil shale and its application and evaluation method, which uses the resistivity curve to determine whether the immature shale has reached the maturity of the exploitable level When the oil shale enters the mature stage, a large amount of non-conductive hydrocarbon fluids will be produced, which often leads to the resistivity value of mature source rocks being higher than that of immature source rocks

Method used

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  • A ground heating device for low-maturity oil shale and its application and evaluation method
  • A ground heating device for low-maturity oil shale and its application and evaluation method
  • A ground heating device for low-maturity oil shale and its application and evaluation method

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Embodiment 1

[0054] see figure 1 . This embodiment provides a ground heating device for low-maturity oil shale, including a heating device body 1, the heating device body 1 is divided into a heating chamber 11 and a cooling chamber 12 by a partition 2;

[0055] The bottom of the heating chamber 11 is welded with a resistance heating box 111, and a heating furnace 112 is movably connected in the resistance heating box 111;

[0056] One side of the heating chamber 11 is provided with a temperature control knob 113 for controlling the heating temperature in the heating furnace 112; the left side of the heating chamber 11 is provided with a furnace door 114 for switching the heating furnace 112, and the furnace door One side of the furnace door 114 is connected to the side of the heating chamber 11 through a hinge, and the other side of the furnace door 114 is movably connected to the side of the heating chamber 11 through a magnetic strip. The inside of the furnace door 114 is provided with ...

Embodiment 2

[0068] This embodiment provides an application of a ground heating device for low-maturity oil shale in ground assessment of immature oil shale.

Embodiment 3

[0070] On the basis of Embodiment 1 and Embodiment 2, this embodiment provides a method for evaluating low-maturity oil shale ground using the low-maturity oil shale ground heating device, including:

[0071] Step 1, sample preparation: crush 300g of oil shale samples, and take 150g of samples to analyze the organic species of oil shale by Fourier transform infrared spectrometer; another 60g samples are used for mercury intrusion experiment; The 60g sample was tested for its oil content by the chloroform asphalt A method; the remaining samples were reserved for subsequent use;

[0072] Step 2, stand still: put the sample after Fourier transform infrared spectroscopic analysis in a nitrogen environment for 20 minutes;

[0073] Step 3, vacuuming: Connect the power plug to the power supply, open the furnace door of the heating chamber, put the sample after step 2 standing in the heating furnace, close the furnace door, turn on the switch A on the control switch, start the vacuum ...

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Abstract

The invention discloses a ground heating device for low-maturity oil shale, which includes a heating device body, the heating device body includes a heating chamber and a cooling chamber; a resistance heating box is arranged at the bottom of the heating chamber, and a heating furnace is arranged in the resistance heating box; the heating chamber The top is equipped with an exhaust port, a vacuum pump and a control switch; the vacuum pump is connected to the heating furnace through a special conduit; the bottom of the cooling chamber is equipped with a tray, and the right side of the cooling chamber is equipped with a cooling door; The gas port is detachably connected to a nitrogen bottle through an air guide tube, and the heating furnace is also connected to a control device that can display the change of resistivity in the heating furnace; the invention also discloses a method for evaluating the ground of low-maturity oil shale with the device of the invention . The device of the present invention can reduce energy waste, promote the maturity of oil shale with low maturity through heating, and obtain as much rock information as possible to serve future shale oil exploitation.

Description

technical field [0001] The invention relates to the technical field of geological exploration of oil shale, in particular to a ground heating device for low-maturity oil shale and its application and evaluation method. Background technique [0002] With the in-depth study of shale oil and the continuous improvement of exploration and development technology, shale oil has become the focus of oil and gas exploration in all countries in the world. The quality and quantity of minerals and the technical conditions for mining and utilization. my country has abundant oil shale resources, but most of them are in the immature state. Therefore, for immature oil shale, heating can be used to promote the maturation of rock matrix, so that it can reach the standard that can be exploited as soon as possible, while for immature oil shale Shale evaluation is an important part of the entire development process. [0003] The surface carbonization technology of oil shale has been developed fo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21C41/24E21B49/02E21B49/00G01N1/28
CPCE21B49/00E21B49/02E21C41/24G01N1/28G01N1/286
Inventor 钟显康李浩男扈俊颖张智施太和
Owner SOUTHWEST PETROLEUM UNIV
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