SU1530766A1 - Method of determining mineral content in rock body - Google Patents

Abstract

The invention relates to the mining industry and is intended to determine the geological structure of the sections of deposits at the stage of their operational exploration. The goal is to improve the accuracy of determining the mineral content in the array. Preliminary exploration is carried out and production wells are drilled, the walls of which are exposed to infrared radiation. The filling time of a constant volume with a broken rock is recorded, and its distribution as a function of the depth of the well is determined from the established dependence of the mineral content on the time it takes to fill the rock. Based on the results of joint processing of data by interval selection and distribution of the content of the well sections, the content of the mineral in the massif is determined. If necessary, this method allows for the rapid re-expansion of individual sections of already tested wells, i.e. no additional drilling is required. 2 Il.

Description

where N is the power of the infrared radiation source, kW; t - work time, h; V is the volume of broken rocks, m.

At a constant power, the source N, the destruction time t of a given volume of rock V is directly proportional to the energy consumption E and is also determined by the percentage of the useful component n in this area of the array (Fig. 1).

A device for implementing the method (FIG. 2) consists of an infrared cylindrical radiator (IKI) 1 and a cylindrical tank 2 for collecting rock formation, the radiator 1 and the capacitance 2 being rigidly fixed on the feed pipe 3. On a cylindrical

Preliminary geological exploration of the field with core sampling provides reliable

Capacity 2 under the emitter is installed 20 data in the wells on the contents. and legal ring funnel 4. The lodging of the mineral, the physical perimeter is lastly provided with flexible mechanical properties of the enclosing

ring seal from the walls of the squa-rocks. An operation drill (not shown) is carried out. From the bottom, the capacity of 2 well wells, which is interval-wise, is equipped with a hatch device, consisting of -25 sampling of rocks in them and their analysis, for example, from a plate 5 held in a horizontal position by means of a spring 6, and a hinge 7.

The device works as follows.

Using a feeder (not shown), the device is piped into the well, installed at a predetermined height and turned on by ICI 1. Under the action of thermal voltages arising in the bone in depth within the limits of lime when heated by infrared radiation But, for example, near the well, the walls of the well are destroyed. IKI is calculated so that the temperature of the radiating elements is maximum, but not exceeding the melting point of the composing rocks. In this case, as studies have shown, the initial stress state of the array does not affect the energy consumption.

The beaten rock enters the cylindrical tank 2. The JboKOBoe device is designed in such a way that it opens when the tank is full and the rock is broken and the rock is poured out. The process 50 fossil depth of the well h. device recovery and control of the work- Systematized data can effectively be automated. A sensor (not shown) is installed in the hatch device, electrically connected to the lifting winch drive or the drilling machine (depending on

For a specific type of rock of the deposit, the power of the IKI N and the volume of the reservoir for collecting rock V, the calibration time depends on the filling time t of the reservoir Vj broken by rock, on the percentage of the useful component p.

Baseline data for it is obtained from time records with pre-survey fill-ins, in which the properties of rocks are radiated from the core.

40 D.PNI of a more detailed exploration of a part of a field, it is filled with wells in an amount determined by the required accuracy of exploration. Next, the expansion of the well site with the proposed device is carried out (Fig. 2). According to the time of filling t with a broken rock, tank V and the calibration dependence (Fig. 1), the content and useful content is promptly evaluated.

on the method of feeding the device). When the door is open, the sensor is triggered and automatically

d t about the content and spatial location of the mineral in the thickness of the host rocks. For its greater reliability, selective processing of the obtained samples is carried out, for which they are captured at the wellhead and the results are compared with the calibration data.

lifting the device to a height equal to the height of the ICI 1. At the same time, the tape-driving mechanism of a recording device (not shown) records the time taken to fill the container in this area (the tape moves in the device at a constant speed). Thus, testing is performed along the entire length of the well. The height of the ICI 1 is chosen based on the conditions of specifying the accuracy of recording measurements along the well length. i

The method for determining the mineral content of the rock mass is as follows.

Preliminary geological exploration of the field with core sampling provides reliable

data in the wells of the content. and collecting samples of rocks and analyzing them,

s bones in depth within the limits of known n, for example, near the well

For a specific type of rock of the deposit, the power of the IKI N and the volume of the reservoir for collecting rock V, the calibration time depends on the filling time t of the reservoir Vj broken by rock, on the percentage of the useful component p.

Baseline data for it is obtained from the recordings of the time taken to fill the tank in depth within the limits of the known n, for example, near the well.

fossil depth of the well h. Systematized data obtained

mi preliminary exploration, in which the properties of rocks are radiated by core.

The FPD of a more detailed exploration of a section of a field, it is filled with wells in an amount determined by the required exploration accuracy. Next is the expansion of the wells with the proposed device (Fig. 2). According to the time of filling t with a broken rock, tank V and the calibration dependence (Fig. 1), the content and useful content is promptly evaluated.

fossil depth of the well h. Systematized data obtained

Claims (1)

d t about the content and spatial location of the mineral in the thickness of the host rocks. For greater reliability, laboratory processing of the obtained samples is carried out selectively, for which they are captured at the wellhead and the results are compared with the data of the calibration dependence (Fig. 1). if necessary, the method allows operational | re-expansion of individual sections of already tested wells, i.e. no additional drilling is required. Claims The method for determining the content of a useful mine in a rock massif, including preliminary geological exploration of a field, drilling of a production well. , interval sampling in n x samples of rocks and their analysis, about tl and h ayush and so that, in order to improve the accuracy 1530766 determining the mineral content in the array, the well steaks are influenced by infrared radiation, the filling time of the repaired volume with a broken rock is recorded, and the percentage of the mineral content depends on the filling time of the rock as a function of the depth of the well, and the results the joint processing of data by interval sampling and the distribution of the content over the well sections determine the mineral content in file of parameters. Flush O.O.tQ.60.81.0nlnjuoKc. Fi8.1 Compiled by V. Arkhipov N. Yatsola Editor Tehred M. Didyk Proofreader O. Tsiple Order 7874/34 Circulation 514 VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab. 4/5 Production and Publishing Combine Patent, Uzhgorod, st. Gagarin, 101 FIG. Subscription