SU1384740A1 - Device for sampling slurry while drilling - Google Patents

Abstract

The invention relates to the mining industry and makes it possible to increase the representativeness of the sample and the convenience of servicing the device. It includes a precipitating chamber (OC) 7 with removable sampling receptacles (PE) connected to the wellhead sealer and a connection unit with the dust collection system of the drilling rig. Moreover, OK 7 has a unit for mounting on a drilling unit, and in the lower part of OK 7, along it are sludge dividers (LH) 9. The sealer is hinged to OK 7, and PE is fixed to LH 9. Drilling products come to OK 7, losing its speed and entering the LH 9. Part of the sludge intended for sampling falls into the lateral units. The other part is clipped to the middle PI. Thus, a sample with the lowest representative sample weight is collected at the PE. 3 il. (WITH WITH

Description

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The invention relates to the mining industry and is intended for sampling from products of destruction (sludge) while drilling by drilling machines.

The aim of the invention is the representativeness of the sludge sample.

FIG. 1 shows a device without sample receptacles, a general view of FIG. 2 — settling chamber with sludge dividers; in fig. 3 - device with sample receptacles, rear view.

The device for sampling the sludge while drilling consists of blocking the installation of well 1 in the zone of placement of the drill string 2 of the sealer, including a length of casing 3 with a flange base to which the seal 4 (porous rubber) is attached, and the guide pipe 5 coaxially inlet The casing 3 is connected to the casing 3. The guide pipe 5 consists of two parts interconnected by a hinge 6 and has a connection with the settling chamber 7 which is attached to the platform 8 of the drilling rig. The precipitation chamber 7 is provided in the lower part with slurry dividers 9 equipped with removable side 10 and middle 11 sampling receptacles installed under the apertures 12 for sampling drilling products. The precipitation chamber 7 is connected via pin 13 and the joint assembly with the dust collector system of the drilling rig and has a unit for mounting the rig.

A device for sampling sludge while drilling works as follows.

When the drill string 2 is raised, the casing 3 is tightly put on the lower part of the guide tube 5 and, by turning it on the hinge 6, the tube is brought into working condition (Fig. 1). The casing of coarse 3 with seal 4 is installed above the drilling site. Through the guide tube 5, the drilling products from the well 1 enter the settling chamber 7. When exiting the guide tube 5 due to expansion 1 and cross section of the settling chamber 7, the cuttings lose speed and under the action of the actual 10

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The weight falls, the mass of the waste water isomers “The smallest particles of sludge smudge onto the surface of the filter 13 m as they accumulate under the action of their own weight fall into the slurry-receiving containers. A part of the drilling products j intended for sampling falls into the side sampling tanks 10, and the material not intended for sampling is cut off into the middle sampling tank 11. If the weight of the slurry taken into one of the side sampling tanks is not provides the smallest representative sample weight, then it is possible to combine the sludge collected in other sample-receiving containers, including the average one. In general, we allow the collection of 1/4, 1/2, 3/4 and the total volume of sludge removed from the well.

By the smallest representative amount of the collected sludge, comparing the drilling products in each sampling tank, the reliability of the samples received from the well during the drilling process is judged. Separation of drill cuttings by means of two dividers allows collecting samples with the smallest representative sample weight into the sample-receiving tanks, which ultimately reduces the costs of sample processing without loss of the qualitative composition of the entire sample.

Claims (1)

Invention Formula A slurry sampling device for drilling, including an rsactual chamber with removable sampling receptacles associated with the squalshins mouth sealer, and a connection unit with a drilling rig dust collection system, in order to increase the representativeness of the sample and ease of maintenance the settling chamber is made with sludge dividers located in the lower part along it, and the wellhead sealer is hinged on the settling chamber, the latter has a unit for mounting on the drilling rig The removable sampling receptacles are mounted on sludge dividers. x