SU1102893A1 - Device for injection of drilling mud into the well - Google Patents

Abstract

DEVICE ZLYA SOLUTION DISCHARGE IN THE WELL, including a case with an external thread, a supply pipe with an emphasis and an internal threaded thread under the case thread, an elastic sealing element installed on the case, an stop Pipe with a filler hole, and e with the fact that with; the purpose of ensuring the reliability of the device in wells of different sections and with different configurations of steaks, it is equipped with a cone, rigidly connected to the body and placed, LOWER than the elastic pickup element, and a spacer sleeve, made from the side of the cone with split spring collets and installed on a stop pipe connected to the housing by a telescopic connection, the cone and the spacer bushing are spring loaded between each other and are set apart from one another at a distance. Ensuring the possibility of their interaction in the working position of the device.

Description

The invention relates to the construction and can be used in the cementation of rocks.

A device for pumping a solution into a well is known, comprising a pipe with through channels, the upper end of which is provided with a flap fl.

The disadvantages of this device are the limited nature of its immersion in the soil and the impossibility of its use for compaction of filtering and rock massifs,

Closest to the present invention is a device for injecting a solution into a well, including a body with an external thread, a supply pipe with an abutment and an internal response thread for the body thread, an elastic sealing element mounted on the body, and a stop pipe with a filling hole 23.

A disadvantage of the known devices is the limitation of its use, namely, the impossibility of using in wells of various configurations and increased sections.

The purpose of the invention is to increase the reliability of operation of the device in wells with different configurations of walls and different sections.

The goal is achieved by the fact that a device for injecting a solution into a well, including a housing with an external thread, a supply pipe with an emphasis and an internal response thread under the thread of the housing, an elastic sealing element mounted on the housing, and an abutment pipe with a filling hole, are provided with a cone rigidly connected to the housing and placed below the elastic sealing element, and the spacer sleeve, which is made on the side of the cone with split spring collets and is placed on the stop pipe associated with orpusom telescopic connection, with the cone and the expansible sleeve are biased together and set apart at a distance that ensures the possibility of reacting in the operating position of the device.

Fig, 1 shows the device, a general view; figure 2 - device operating position.

The device includes a housing 1 with an external thread, a supply pipe 2 with an emphasis 3 (for example, a nut and an internal response thread under the threads of the housing 1, an elastic sealing element 4 mounted on the housing, and an abutment pipe 5 with filling holes b. On the housing 1, under the elastic sealing element 4, a cone 7 is fixed and rigidly connected with it. And on the stop pipe under the cone 7 there is installed a spacer 8, which is made; for example, with a side of the cone with split spring collets. A spring is installed between the cone and the spacer sleeve. and 9, while they themselves cone and spacer set apart at a distance;. providing their interaction Axial tube is bonded to the body of the telescopic joint for abutment pipe formed in an upper portion with the outer protrusion formed under the upper housing Tooeu..

The device works as follows.

The device is lowered into the well and the cemented zone reaches the stop tube 5. At the same time, the spring 9 is compressed due to the axial force and the cone 7 enters. Spread the sleeve 8, which expands and spring-loaded the collet to fasten the device to the walls of the well. The feed pipe 2 is rotated, compressed elastic sealing element 4 and isolate the cemented area. Then the solution is injected into the cementing zone through the inlet and thrust pipes.

After the injection is completed, the thief is removed from the well. The inlet pipe 2 is rotated in the opposite direction and the elastic sealing element 4 is detached. In this case, the cone 7 leaves the spacer sleeve 8, folds and does not prevent the device from being removed from the squirt box.

The proposed device for pumping mud into the wells allows the use of a drilling tool of small diameters for drilling cement holes, isolating the cemented area at any depth and in wells with different trunk configurations.

Claims (1)

DEVICE FOR PURPOSE OF SOLUTION INTO A WELL. including 'a body with an external thread, a lead-in pipe with an emphasis and with an internal thread; Wind thread for a thread of the body, an elastic sealing element, mounted on the body, and a stop; a pipe with a filling hole, characterized in that, in order to increase the reliability of operation device in wells of various sections and with different wall configurations, it is equipped with a cone, rigidly connected to the body and placed below the elastic sealing element, and a spacer sleeve made from the side of the cone with split spring and collets and mounted on a thrust pipe connected with the housing by a telescopic connection, the cone and the spacer sleeve being spring-loaded and installed from each other at a distance that allows them to interact in the working position of the device. Oh yo Q0 CO With