41 results about "Ball Catcher" patented technology

A ball catcher is designed to stop balls that are the same size or different sizes at an inlet on a seat that is connected to a movable biased sleeve. Once the ball or other shaped object lands at the seat the flow around it increases differential pressure on the seat and sleeve and displaces them against the bias. The ball goes into a surrounding annular space and cannot exit. A preferably spiral sleeve guide the movement of the balls in the annular space so that efficient use of the annular space is made to maximize the number of balls that can be captured per unit length of the annular space. As soon as the ball enters the annular space the sleeve shifts back to the original position to stop the next ball at the inlet. Once in the annular space, the balls cannot escape if there is a flow reversal. The central passage remains open to pass other tools and flow.

A ball seat is integrated with a movable biased sleeve. Sleeve movement against its bias moves a diverter from a position outside the through passage to a position across the main passage such that any balls that drop down will be directed by the diverter into an annular retention volume. In treatment of the formation for fluid loss the movement of a seat with the seated ball opens lateral ports for delivery of sealing material and moves the diverter. Smaller balls are then introduced to close lateral ports above the seated ball so pressure can be built to shift the sleeve and extrude the first ball. Once the seated ball blows through, the smaller balls come through the seat and are all diverted to an annular capture volume. The device is resettable for multiple operations. Fluid flow cessation closes lateral ports and opens a through passage retracting the diverter.

The invention discloses a holding structure for tin ball catcher of connector, which comprises: an insulation base with barrier wall, a plurality of terminals with horizontal tin ball catch hole of open-cone shape on welding part, and multiple tin balls with part located by catch hole and limited by opposite barrier wall and up-and-down slide properly. Wherein, the hole diameter of catch hole is larger a little than the outside diameter of tin ball to catch the ball with a little loose; when welding the connector and circuit board, all tin balls slide up-and-down along contacted board surface to regulate contact evenly and achieve optimal welding effect.

The invention discloses a water system workstation of a water-cooled chiller. The workstation includes a central control cabinet, a base, a circulating water pump and an online cleaning device for rubber balls. The circulating water pump and the online cleaning device for rubber balls are fixedly installed on the base. The water inlet side of the circulating water pump is connected The water outlet end of the collecting and distributing filter and the water outlet side of the circulating water pump are connected to the straight pipe section of the ball. The straight pipe section of the ball is connected with a soft joint for connecting the water inlet end of the chiller. The ball cleaning device on-line includes a ball server and a ball catcher, the upper soft connection rear end is connected with the ball catcher, the ball catcher is fixedly connected to the shock-absorbing base through supports, and the central control cabinet is fixedly installed on the shock-absorbing base. This workstation is suitable for large and medium-sized public buildings, commercial projects, etc., and is a new product of high-efficiency and energy-saving modularization. The invention has the advantages of high efficiency and energy saving, compact structure, space saving, modular production, and convenient operation, maintenance and management.

The embodiment of the invention discloses a wellhead ball catcher for staged fracturing of shale gas, which includes a first pipeline, a second pipeline and a vertical pipeline, and the second pipeline is provided with an elastic filter plate at the connection with the vertical pipeline , the elastic filter plate is provided with a number of seepage mesh holes, the lower surface of the second pipeline is also provided with a liquid recovery mechanism, the inside of the vertical pipeline is provided with an automatic ball storage mechanism, and the liquid recovery mechanism includes a filter leak on the second pipeline, The filter sieve is connected with a recovery pipeline, and the end of the recovery pipeline is connected with the second pipeline on the rear side of the elastic filter plate; the implementation steps of the ball catching method are specifically to form a negative pressure airflow in the fracturing air pipe; the fracturing ball and the fracturing slurry along the The fracturing gas pipe is moved up to the wellhead ball catcher; the fracturing balls and fracturing fluid are separated and collected in the wellhead ball catcher; the fracturing balls are automatically transferred to the ball storage space; this scheme adds automatic flipping to the wellhead ball catcher The blades can be turned over to discharge the fracturing balls to ensure the tightness of the wellhead ball catcher.

A ball seat is integrated with a movable biased sleeve. Sleeve movement against its bias moves a diverter from a position outside the through passage to a position across the main passage such that any balls that drop down will be directed by the diverter into an annular retention volume. In treatment of the formation for fluid loss the movement of a seat with the seated ball opens lateral ports for delivery of sealing material and moves the diverter. Smaller balls are then introduced to close lateral ports above the seated ball so pressure can be built to shift the sleeve and extrude the first ball. Once the seated ball blows through, the smaller balls come through the seat and are all diverted to an annular capture volume. The device is resettable for multiple operations. Fluid flow cessation closes lateral ports and opens a through passage retracting the diverter.

The invention discloses a novel basketball collecting and serving device, including a housing, a ball catcher, a service mechanism, a ball-feeding mechanism and a control panel. The top of the shell is provided with a first accommodating groove and a second accommodating groove, A ball receiving device is embedded and installed in the first receiving groove, the ball receiving device comprises anouter frame, hook, the outer frame is composed of an L-shaped flexible sleeve and a circular ring sleeve, At that top of the shell face the first accommodating groove, an out frame is fixed, A circular ring sleeve is fixed in the shell at the communication part of the first accommodating groove and the second accommodating groove, The two ends of the L-shaped flexible sleeve are fixedly connectedwith the ring sleeve and the outer frame respectively. The basketball collecting and serving device is used with the existing basketball frame to hang the hook on the basketball frame. When the basketball is scored, the basketball enters the receiving device and reaches the serving mechanism through the transportation of the ball feeding mechanism, thereby reducing the frequency of picking up theball. Through the adjustment of the angle and inclination of the service mechanism, it can meet the service needs of different positions.

The invention provides a tool-free-packing horizontal well efficient staged fracturing method. The tool-free-packing horizontal well efficient staged fracturing method comprises the steps that 1, a drilling tool is tripped, specifically, an oil tube or a coiled tubing which is sequentially connected with a safe release, a multi-cluster spraying gun and a check valve from top to bottom penetrates into a casing pipe, a construction pipe string is tripped into the preset position, a wellhead is mounted, and a ball catcher is mounted at the wellhead; 2, hydraulic sandblasting perforation is conducted, specifically, ball injecting is conducted after a circulating wellbore is normal, and multi-cluster hydraulic jet perforation is conducted on the first stage; 3, fracturing construction is conducted, specifically, after hydraulic sandblasting perforation is completed, the drilling tool is adjusted to the second stage of perforation position, the wellhead is mounted, a steel ball is recoiled out, and fracturing operation is conducted on the first stage of target layer; and 4, staged operation is conducted, specifically, after open flow is conducted, the staged operation is conducted untilstaged pressure test is qualified, construction of other stages is conducted, horizontal well staged fracturing is realized, effectiveness of each cluster of crack initiation in each stage is ensured,full bore of the wellbore is maintained, the problems such as jamming of the drilling tool and abrasion of the drilling tool after fracturing of a conventional horizontal well are avoided, and the effectiveness and construction efficiency of staged fracturing modifying are improved.